EP0890352B1 - Support pour un instrument de traitement médical, un outil de traitement médical ou un moteur d'entrainement - Google Patents

Support pour un instrument de traitement médical, un outil de traitement médical ou un moteur d'entrainement

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Publication number
EP0890352B1
EP0890352B1 EP98112072A EP98112072A EP0890352B1 EP 0890352 B1 EP0890352 B1 EP 0890352B1 EP 98112072 A EP98112072 A EP 98112072A EP 98112072 A EP98112072 A EP 98112072A EP 0890352 B1 EP0890352 B1 EP 0890352B1
Authority
EP
European Patent Office
Prior art keywords
repository
drive motor
treatment
medical treatment
torque
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98112072A
Other languages
German (de)
English (en)
Other versions
EP0890352A3 (fr
EP0890352A2 (fr
Inventor
Eugen Eibofner
Ernst Stohmaier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaltenbach and Voigt GmbH
Original Assignee
Kaltenbach and Voigt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kaltenbach and Voigt GmbH filed Critical Kaltenbach and Voigt GmbH
Publication of EP0890352A2 publication Critical patent/EP0890352A2/fr
Publication of EP0890352A3 publication Critical patent/EP0890352A3/fr
Application granted granted Critical
Publication of EP0890352B1 publication Critical patent/EP0890352B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
    • B25H3/006—Storage means specially adapted for one specific hand apparatus, e.g. an electric drill
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/14—Dental work stands; Accessories therefor
    • A61G15/16—Storage, holding or carrying means for dental handpieces or the like

Definitions

  • the present invention relates to a shelf according to the preamble of claim 1.
  • a contamination of the treatment instruments with body-derived pathogens is given. This applies both to those treatment instruments with which the body can be treated at a distance, e.g. Spray nozzles, and in particular for such treatment instruments, in the use of which takes place a direct contact with the body. Contamination of the treatment instrument is particularly likely if the treatment instrument is contaminated with body fluids, e.g. Blood comes into contact, as is the case in particular with a treatment with a surgical treatment instrument.
  • the treatment tools and treatment instruments used are stored in an instrument tray.
  • the use of motor-driven treatment instruments is known which contain a separable motor cartridge, wherein a corresponding receiving device is provided in the medical treatment device for the motor cartridge.
  • the motor cartridge is thus stored in the medical treatment device or an associated control unit, while the actual handpiece, ie the treatment instrument, is stored together with the supply tube on a movable arm of the medical treatment device.
  • this movable arm is not sterilizable.
  • the treatment instrument with the drive motor and the supply hose connected to it is placed either on a tray, a quiver-like holder or on the patient himself.
  • these storage spaces are also not sterile in each case.
  • a device for storing dental instruments in which the handpiece is mounted on a protruding from a shelf stand, with the instrument hose applies to the inside of a circumferential side wall of the shelf. As a result, a certain positioning of the tube is given in a defined position.
  • the present invention has for its object to provide a simplified storage, which on the one hand can account for the previously described movable arm of a medical treatment device and on the other hand, a sterile storage is guaranteed.
  • the tray on a receiving arrangement for the supply hose of the treatment instrument or the drive motor, in particular, the supply hose can be wound around the side wall of the tray.
  • the tray preferably has a receptacle for the drive motor and cupped storage sections for treatment tools or treatment instruments.
  • the drive motor can be completely sterilized with the tray, which is also sterilizable, so that a special tray or Recording device for the engine or the motor cartridge described above on the treatment device is no longer required.
  • the tray has a quiver-like support for the drive motor, so that this one hand stored in the tray and on the other hand in the tray, e.g. during the treatment of a patient.
  • the above-described movable arm of the treatment device can be dispensed with and is replaced by the inventively proposed sterilizable and freely positionable tray, so that always sterility is guaranteed.
  • the drive motor, the supply tube, treatment instruments and treatment tools can be sterilized, so that the space required for sterilization of all parts is very low.
  • the shelf is designed in two parts, wherein the two parts are pivotable relative to each other.
  • an arbitrarily positionable tray is created, in particular, the inclination position of the tray is changeable and also a quiver-like support for the drive motor can be provided.
  • the tray can be completely sterilized with the drive motor and, if necessary, to be sterilized treatment instruments or treatment tools and the supply hose and serves at the same time as packaging for the parts to be sterilized.
  • Fig. 1 shows a preferred embodiment of a dental treatment device 20, which is in particular a dental treatment device for use in microsurgery, ENT surgery, plastic surgery, maxillofacial surgery and implantology.
  • the central component of the medical treatment device shown in FIG. 1 is a control unit 21 which, depending on predetermined operating parameter information, controls a drive motor which can be coupled to a treatment instrument and to a treatment tool coupled thereto.
  • the drive motor 23 is connected via a supply line 22 to a corresponding terminal 30.
  • the supply line 22 may be connected to the controller through a quick release coupling, i. the terminal 30, and be attached by a threaded coupling to the drive motor 23.
  • a brushless motor with position indicator is preferably used, the speed range between 200 and 40,000 revolutions / min. lies.
  • the torque of this drive motor is for example 5 Ncm at a drive speed of 200 / min.
  • a treatment instrument such as e.g. a dental handpiece or a Reduzierwinkel scholar be plugged, which the actual treatment tool, such. a drill or the like. wearing.
  • the actual treatment tool such. a drill or the like. wearing.
  • different speed ranges can thus be covered and different maximum torque values can be achieved.
  • both the drive motor and the treatment instrument and the treatment tool are contaminated with pathogens derived from the treated body. For this reason, it is necessary that both the drive motor 23 and the supply line 22 are autoclavable and thus easily sterilized.
  • the medical treatment apparatus shown in Fig. 1 comprises a coolant pump which supplies, via a corresponding port 31, a coolant, such as NaCl saline solution, to the treatment site.
  • a coolant such as NaCl saline solution
  • the connected to the terminal 31 coolant line 61 may be supplied externally together with the supply line 22 to the drive motor 23 and the treatment instrument coupled thereto.
  • the coolant line 61 may also be integrated at least partially into the supply line 22 or the drive motor handpiece 23.
  • the control unit 21 of the medical treatment device 20 controls the supply of the coolant via the coolant line 61 and in particular regulates the amount of coolant supplied.
  • the medical treatment device 20 shown in FIG. 1 can also be designed with two connections 30 and two drive motors 23, which in particular have different speed ranges or torque values in order to be able to cover different fields of application.
  • the two drive motors can be operated independently of each other.
  • the second drive motor is associated with a second coolant pump, which can be configured analogous to the previously described coolant pump with the corresponding coolant line 61.
  • a particularity of the medical treatment device 20 shown in Fig. 1 is the use of a pneumatic drive device 33 which is connected to an air terminal 32 of the control unit.
  • This pneumatic drive device 33 is provided for operating certain special treatment instruments that require an air drive on the one hand and a sterile cooling fluid on the other hand and are connected to a multiflex connection 34. These special treatment instruments may be specific instruments for periodontology, crown and bridge removal, endodontics and root tip resection.
  • the drive air pressure delivered by the pneumatic drive device 33 can be monitored and arbitrarily regulated and adjusted with the aid of the pneumatic drive device 33 and a correspondingly provided air pressure gauge 35. Furthermore, with the aid of the control device 21, the air pressure and the supplied cooling liquid quantity of the pneumatic drive device 33 can be controlled.
  • the front side of the control device 21 has an integrated display unit 36 which, as will be described in more detail below, displays the currently selected operating parameter information. Since upon actuation of the pneumatic drive device 33 the drive of the special treatment instrument 34 connected thereto is effected by air pressure, in this case the display unit 36 can display the applicable air pressure settings of the pneumatic drive device 33 together with the applicable coolant setting. It is also conceivable that only the coolant data are displayed on the display unit 36 in this case.
  • a shelf 24 to be described in more detail below is provided, which is provided for the storage of treatment tools, treatment instruments and the drive motor 23.
  • the tray 24 is a separate multifunction tray, in which the drive motor 23 with the associated supply line 22 and the supply hose and used Treatment instruments and treatment tools can be stored.
  • the tray 24 can be sterilized and serves at the same time during sterilization as packaging for the drive motor 23 stored therein, the treatment instrument and the supply tube 22.
  • the foot switch 25 may also have a selector switch for switching between the manufacturer-side, unchangeable operating program level and the user-specific, arbitrarily variable operating program level, so that the selection between these two operating program levels can be made by the foot switch 25.
  • the switch 26 for direct control of the drive motor 23 is used.
  • This switch 26 has the function of an accelerator pedal and is used to turn on and off the drive motor 23. It is also conceivable that the speed of the drive motor 23 is set via the switch 26 depending on the depression of the switch 26. With the help of the switch 27, the coolant pump 31 can be switched on and off. Finally, with the help of the switch 29 of the (default) predetermined clockwise rotation of the drive motor 23 to anti-clockwise rotation and be converted inversely.
  • the foot switch 25 is designed waterproof to always ensure the functionality of the foot switch 25.
  • Fig. 2 shows an enlarged view of the front of the control device 21 of the medical treatment device 20 shown in Fig. 1.
  • a display unit 36 e.g. integrated a liquid crystal display, which preferably displays four-line the applicable or selected operating parameter information, so that an optical monitoring of the operation of the medical treatment device is possible.
  • the front side of the control unit 21 has a multiplicity of selection keys 1-14, which may be, in particular for reasons of hygiene, membrane keys that can be activated by a short keystroke.
  • Each of these keys 1 - 14 is assigned a specific function, which will be explained in more detail below.
  • the medical treatment apparatus shown in Fig. 1 has - as has already been described - essentially two program levels, in which one program level from manufacturer-side operating programs for operating certain treatment instruments and treatment tools can be selected.
  • This factory or program level includes only operating programs that are not changed by a user, i. can not be overwritten.
  • a user-specific operating program level is provided, which comprises a plurality of user-specific operating programs, which are previously created by a user and can be changed by him as desired.
  • the operating programs specified by the manufacturer and the user-specific operating programs are stored in a memory of the control unit 21. In principle, any number of manufacturer-specified operating programs or user-specific operating programs can be stored. For reasons of clarity and storage space, however, the maximum number of manufacturer-specified or user-specific operating programs is advantageously limited to, for example, 100 operating programs.
  • the corresponding operating parameter information of the selected operating program is displayed on the display unit 36 and the drive motor 23 can according to these predetermined operating parameter information by the control unit 21 may be controlled in cooperation with the foot switch 25 if necessary.
  • an adjustment mode is also provided in the medical treatment device shown in FIG. 1, in which a user can manually change the operating parameter values corresponding to the operating program after selecting an operating program. Likewise, the user can also set the operating parameters without prior selection of an operating program by means of the function keys of the control unit 21 or of the foot switch 25. In this setting mode, the user works primarily with experience or feeling values.
  • a user can select between all factory-set operating programs that can not be changed by the user. It can be provided that with each actuation of the button 1, the next manufacturer preset operating program is selected and displayed in the display unit 36. In this case, all factory-set operating programs can only be browsed by pressing the button 1. Alternatively, it can be provided that is first changed by pressing the button 1 in the manufacturer's default program level in which then subsequently with the help of the keys 8 and 9, the individual factory-preset operating programs can be browsed. Also in this case, the respectively valid or selected operating program or the corresponding operating parameter information is displayed in the display unit 36.
  • the selection of a user-specific operating program can be done either alone by pressing the key 2 or in combination with the keys 8 and 9.
  • the operating parameter information corresponding to a selected user-specific operating program is also displayed in the display unit.
  • each operating program is defined by specific operating parameter information, which in particular includes the type of treatment instrument used, the type of treatment tool used, technical information for operating the treatment instrument or treatment tool, and coolant information.
  • a treatment instrument 38 is placed on the drive shaft 37 of the drive motor connected to the control unit 21 via the supply tube 22, wherein according to FIG. 3 b it is a handpiece and according to FIG. 3c is an elbow.
  • a treatment tool 39 is coupled to the attached treatment instrument 38, wherein in the case of an angle piece 38 shown in Fig. 3c 38 on the angle piece 38 also a speed transmission head 40 may be placed with possibly. Existing speed reduction, then the treatment tool 39 is introduced.
  • a variety of treatment instruments 38, head parts 40 and treatment tools 39 are known. While the treatment instruments 38 or head parts 40 differ mainly in the speed transmission or speed reduction, the treatment tools 39 may be, for example, grains, drills, cutters or taps, etc.
  • the control unit 21 there is a database containing information on all available treatment instruments 38, head parts 40, treatment tools 39 as well as the available coolant possibilities.
  • the data set 41 relating to the treatment instruments 38 of this database is shown by way of example in FIG. 3a. From this it can be seen that the record concerning the treatment instruments 38 includes, for example, the type or product name for different angle pieces 38A-C or hand pieces 38D-K.
  • the first column of the data set shown in Fig. 3a respectively comprises the combination of an angle piece 38A-C with a corresponding head portion 40A-D.
  • 3a also includes the resulting technical characteristics, such as those shown in Figs. the resulting speed transmission, the efficiency, the maximum torque, the maximum permissible input speed and the resulting at a drive speed of the drive motor 23 of 2000 - 40 000 / min speed range.
  • the resulting technical characteristics such as those shown in Figs. the resulting speed transmission, the efficiency, the maximum torque, the maximum permissible input speed and the resulting at a drive speed of the drive motor 23 of 2000 - 40 000 / min speed range.
  • any number of these hand and contra-angle data records can be stored in the database.
  • the database additionally comprises a treatment tool-related data record and a coolant-related data record.
  • the treatment tool-related data record describes, for example, for the individual types of treatment tools available, such as drills, the associated technical properties.
  • the coolant-related data record describes the Coolant options, such as the adjustable coolant quantities or coolant pump performance.
  • These three previously described data records of the database stored in the control unit 21 can now be combined in units as operating programs.
  • These operating programs thus each represent a combination of a particular treatment instrument with a particular treatment tool, for which combination certain technical operating parameters, such as e.g. the torque or the speed range, and a corresponding coolant setting can be specified.
  • different operating programs may be provided for different applications in the first and second program levels.
  • FIG. 5 shows different operating program sequences depending on the program level specified by the manufacturer, which includes operating programs that can not be changed by the user, depending on applications shown in the first column.
  • the setting of an implant with a diameter of 3.3 mm is shown by way of example in the first line in FIG. 5.
  • This application as shown in Figure 5, comprises a total of seven different correspondingly associated operating programs, designated “Graining”, “Pre / pilot drilling”, “Drilling”, “Profile drilling”, “Threading”, “Implant placement” and “Caps”.
  • Each of these operating programs includes information about the drill diameter used (“DIM”), the operating speed used (“RPM”) and the allowable torque ("TORQ").
  • the user can thus successively run through or select the operating programs assigned to this application, the operating parameter information assigned to this operating program being displayed on the display unit 36 of the control unit 21 after selection of a corresponding operating program.
  • This is indicated in Fig. 5 by way of example with reference to the operating program "drilling".
  • the first line of the display unit 36 information about the treatment instrument or treatment tool used can be displayed.
  • the first line of the display unit 36 also contains the designation "3.” information about the sequence number of the currently selected operating program of the corresponding application.
  • the second line of the display unit 36 includes, as shown in FIG. 5 information about the speed range assigned to the operating program and the set forward mode ("VOR").
  • the maximum torque is indicated, while the fourth line of FIG. 5 may contain information about the amount of coolant supplied (as shown in FIG. 5, 70%) and the designation of the application corresponding to the selected operating program.
  • the display unit 36 may also have a number of lines greater than four and also represent the operating parameter information corresponding to the selected operating program in a different form and in a different order.
  • any user-specific operating program can be selected.
  • the user-specific operating programs stored in the second program level accordingly also contain information about the type of treatment instrument to be used, if necessary the header type, the treatment tool type and the corresponding technical operating parameters, such as, for example, Speed range or torque.
  • any user-specific operating program can be selected using the key 2, at least one such user-specific operating program must have been created. This will be explained in more detail below with reference to FIG. 4.
  • any operating program of the manufacturer-fixed, invariable first program level or the user-specifically created, arbitrarily variable second program level can be selected.
  • a setting mode is provided which can be called up by the button 2 shown in FIG.
  • all technical data can be freely set by the user.
  • pressing the key 3 for example, in the first line of the display unit 36 shown in Fig. 2 appears only the name "free”, while in the second to fourth line information about the currently set actual speed of the drive motor, the torque range of the drive motor and the operating state of Cooling be specified.
  • the user works mainly on the basis of his experience and feelings, without being given specific operating parameters of a stored operating program.
  • the user can set a certain attachment combination of the drive motor via the key 6.
  • the instrument-related data record 41 of the control unit's internally stored database shown by way of example in FIG. 3a is called up, wherein the user can scroll through the individual data record entries with the aid of the keys 8 and 9.
  • the respective currently selected record entry is, for example, in the first line of the display unit 36th shown.
  • the user can call up the treatment tool-related data record with the aid of the key 7 and, in turn, scroll through the individual data record entries with the aid of the keys 8 and 9, the respectively valid selection likewise being displayed on the display unit 36.
  • the user can call with the help of the key 13, the predetermined, stored in the control unit 21 coolant-related record and using the keys 8 and 9 select and set the desired coolant quantity or coolant supply capacity of the coolant pump, wherein the respective valid coolant data on the display unit 36 are shown. Furthermore, with the help of the key 13, the coolant supply can be switched on and off.
  • the user can store this combination as a new user-specific treatment or operating program in the user-specific program level belonging to the key 2.
  • the newly created user-specific operating program is stored on the next free memory space of the user-specific program level. Should all memory locations of this second user-specific program level be occupied, a warning tone can be output or the new operating program can be automatically stored under the first memory location of the second program level, but in this case the operating program previously stored under the first memory location is lost.
  • the user can also select a stored operating program of the selection buttons 1 and 2 corresponding program levels, using the keys 6 - 9 and 13 change and save as a new user-specific operating program, but only under the Button 2 stored user-specific operating programs can be overwritten.
  • the operating parameter information corresponding to a selected operating program is displayed on the display unit 36.
  • the selection of a user-specific operating program is exemplary in FIG shown with the help of button 2.
  • the first line of the display unit 36 first displays the name of the operating program ("B 8") and the type of treatment instrument corresponding to the selected operating program with the resulting speed transmission (see also Figs 3a).
  • the speed range is specified, with the operating mode being the forward mode ("V").
  • the third line shows the type of treatment tool to be used ("Drill 01") and the maximum torque.
  • the total number of stored user-specific operating programs (“B 1 - 20") together with coolant-related data is shown.
  • the set refrigerant amount is 80%, but the refrigerant supply is turned off.
  • the direction of rotation of the drive motor can be switched from forward operation to reverse operation and vice versa.
  • the drive motor has to the respectively selected torque-limited direction of rotation in the opposite direction of rotation increased torque.
  • the pneumatic connection 32 shown in FIG. 1 can be activated and deactivated.
  • a torque calibration procedure to be described in more detail below can be called, which serves for torque calibration of the drive motor with a treatment instrument placed thereon.
  • the button 13 is - as has already been described - for switching on / off the coolant supply, in combination with the keys 8 and 9, the amount of coolant can be adjusted.
  • the coolant line 61 In order to prevent salt deposits due to the NaCl salt solution in the coolant line 61 shown in FIG. 1 as well as the sterilization, the coolant line 61 must be flushed with distilled water at regular intervals. This rinse of the coolant line can be triggered by pressing the button 4, wherein the rinse is preferably only started when in fact coolant has been previously used. Finally, with the key 4, the individual selected operating programs, i. the treatment of a patient to be stopped, preferably after actuation of this button 4 on the display unit 36 care instructions and other helpful information are displayed.
  • the display unit 36 can be used to display error messages that occur during the operation of the medical treatment apparatus 20 or of the control unit 21 inform you about any errors.
  • errors in the electronics of the controller 21, errors of the drive motor 23 or the database of the controller 21 concerning errors for example, if all memory locations of the two buttons 1 and 2 associated program levels are assigned, be pointed.
  • the control unit 21 It is also conceivable to equip the control unit 21 with an automatic treatment type recognition device so that a deviation between the type of treatment instrument corresponding to a selected operating program and the type of treatment instrument actually placed on the drive motor 23 can be detected and a corresponding error message output.
  • Such treatment instrument type recognizers are already known.
  • Fig. 6 shows a first embodiment of the tray 24 shown in Fig. 1, which serves to receive the drive motor 23 and treatment instruments and treatment tools and the supply tube 22, wherein Fig. 6a is a perspective view of this first embodiment and Fig. 6b is a frontal view of this Embodiment represents.
  • the tray 24 shown in Fig. 6 has a longitudinally extending in the longitudinal direction of the tray 24 continuous recess 47 which serves to receive the drive motor 23 shown in FIG.
  • the recess 47 is adapted substantially to the outer shape of the drive motor 23 and has at its one end a circumferential narrowing, so that the stored in the recess 47 motor is held in the direction of the constriction 50 out.
  • the constriction 50 may be designed so that it forms a quiver-like support for the stored in the recess 47 drive motor.
  • a corresponding constriction or quiver-like support on the opposite side to the constriction 50 of the recess 47 may be arranged.
  • two shell-shaped shelves 48 and 49 are arranged symmetrically and substantially parallel to the depression 47, which serve to receive a treatment tool or treatment instrument.
  • these storage sections 48 and 49 have an elongated shape, but these storage sections 48 and 49 may also be adapted to the shape of a dental handpiece or elbow. Furthermore, of course, several of these storage sections 48 and 49 may be provided.
  • the depth of the cup-shaped storage portions 48 and 49 is preferably selected so that a treatment instrument stored therein protrudes partially from the surface of the tray 24 to facilitate removal of the treatment instrument.
  • the side wall 46 of the tray 24 shown in Fig. 6 is bounded by an upper edge 44 which is interrupted by the recess 47 and a peripheral lower edge 45.
  • the lower edge projects somewhat further from the side wall 46 for reasons to be explained in more detail below.
  • the upper edge 44, the lower edge 45 and the sidewall 46 disposed therebetween define the generally elliptical shape of the tray 24 shown in FIG. 6 and form a receptacle assembly for the supply tube 22 shown in FIG. 1, as between the two edges 44 and 45 can be wound around the side wall 46 while being held by the two edges 44 and 45.
  • the upper edge 44 is formed only partially, for example, two opposite points of the tray 24, which also already a secure support of the side wall 46th wound supply hose would be guaranteed.
  • Fig. 7 shows in various views, a second embodiment of the tray 24 shown in Fig. 1, which is a two-part embodiment in this embodiment.
  • Fig. 7a shows a plan view of this tray, wherein it can be seen that two storage parts 59 and 60 are hinged together by corresponding hinge means 51, so that in particular the storage part 60 can be pivoted relative to the storage part 59.
  • the storage part 59 has storage sections 53 and 54 for receiving treatment instruments 38, wherein FIG. 7 shows an example of an angle piece with respect to the storage section 54 and a handpiece with respect to the storage section 53.
  • the depression 47 already described with reference to FIG. 6 for the drive motor 23 with the constriction 50 is contained in the storage part 59.
  • the opposite the storage part 59 pivotable or rotatable storage part 60 has a recess 47 substantially corresponding recess 52, but this is designed in the form of a quiver holder for the drive motor 23, so that the drive motor 23 on the one hand in the recess 47 and stored On the other hand, in the quiver-like holder 52 after pivoting of the storage part 60 relative to the storage part 59 can be kept.
  • FIGS. 7d and 7e show, by way of example, the placement of the tray 24 on a storage arm 57 belonging to the control unit 21 shown in FIG. 7e shows by way of example directly the support of the tray 24 on a surface 58 of the control device 21.
  • the drive motor 23 on the one hand in a recess 47 stored in the Position and on the other hand shown in a held in the quiver holder 52 almost vertical position.
  • the two-part embodiment of the tray 24 has the advantage that - as shown in Fig. 7c - by pivoting the tray member 60 relative to the tray member 59 in a simple manner, a desired inclination of the tray 24 can be adjusted continuously, the friction between the in Fig. 7c shown hinge means and the two storage parts 59 and 60 on the one hand so small that the storage parts 59 and 60 can be pivoted against each other, and on the other hand, however, is large enough that even after storage of the drive motor 23 and the treatment instruments 38 in the tray 24th 7c brought about position of the tray 24 can be maintained.
  • the lower edge 45 is further than the upper edge 44 of the side wall 46 laterally in the illustrated in Fig. 7 embodiment.
  • the tray 24 can be inserted into a sterilization cassette 55 shown in Fig. 7b, wherein the tray 24 is stored in the sterilization cassette 55 with the edge 44 directed downwards.
  • a drive motor 23 held in the tray comes to lie on corresponding bearing surfaces 56.
  • the further protruding from the side wall 46 of the support 24 edge 45 rests on shoulders 62 of the sterilization cassette 55, so that the tray 24 at the same time as "packaging" for held in the tray 24 instruments or the drive motor 23 and the supply tube 22 is used , From Fig. 7b in particular also wound on the side wall 46 of the tray 24 supply hose 22 can be seen.
  • the sterilization cassette 55 shown in FIG. 7b is a multiply sterilizable container into which sterilizing steam or sterilizing gas for sterilizing the tray 24 and the instruments held therein, the drive motor 23 and the supply tube 22 can be inserted through appropriately provided openings.
  • a sterilization cassette is known, for example, from EP-A1-0588 228 or DE-U1-92 06 022.
  • the sterilization takes place at a temperature of up to 135 ° C. While in the known state of the art the individual parts to be sterilized must be packed in a transparent bag, the parts stored in the tray 24 shown in FIGS. 6 and 7 can be combined be sterilized with the tray 24 in a corresponding sterilization cassette, without packaging in transparent bags is required.
  • the individual treatment instruments can be conveniently sterilized together with the drive motor and the supply hose.
  • the tray 24 is shaped such that it can be used in a conventional Sterilisationskassette, Sterilisationstray or a conventional sterilization basket preferably conclusive.
  • the tray 24 After the parts to be sterilized together with the tray 24 are sterilized, the tray 24 must be made of a sterilizable material, such as e.g. Silicone, to be made.
  • the tray 24 is freely positionable and can be fastened by fastening means at corresponding points of the control device 21 shown in FIG. 1 or, as indicated in FIG. 7d, on a storage arm 57 of the control unit.
  • the torque calibration or the determination of the torque takes place with the aid of a torque detection device, which on the one hand can be integrated in the control device 21 shown in FIG. 1 or on the other hand can be provided as a separate unit connectable to the control device 21.
  • the torque detection device comprises a software module with user guidance, with the help of which on a torque detection device associated with the display unit or on the display unit 36 of the controller 21 corresponding sequence or operating information for performing the torque calibration are displayed.
  • this torque-determining device In the case of an external torque-determining device, this torque-determining device must first be connected to the control unit 21 and then-as already explained with reference to FIG. 2-the key 12 shown in FIG. 2 must be actuated in order to start the torque calibration procedure. Subsequently, with the help of the before prompted user to perform the described below with reference to FIG. 10 torque calibration procedure described.
  • Fig. 10 shows two torque-motor current characteristics a and b.
  • the characteristic curve a shows the characteristic curve resulting from the coupling of a treatment instrument with the drive motor without torque calibration. With the help of the torque calibration, the actual characteristic a should now be shifted to the desired characteristic b.
  • the desired characteristic curve b corresponds to that characteristic curve with which the control device 21 shown in FIGS. 1 and 2 would normally drive the drive motor with the treatment instrument coupled thereto.
  • the desired characteristic b is therefore known to the control unit 21.
  • the corresponding torque value M' 1 and secondly the motor current value I ' 1 must be determined.
  • the motor current can be detected, for example, as in DE-A1-196 28 854 with the aid of a resistor connected in series with the drive motor, wherein the voltage dropping across the resistor is evaluated as a proportional quantity to the motor current.
  • the actual characteristic a runs parallel to the desired characteristic b. Under certain circumstances, however, the actual characteristic a may also be inclined to the desired characteristic b. In this case, to determine the actual characteristic a, two measuring points must be determined which unambiguously define the actual characteristic a.
  • one of the two measuring points of the measuring point A 'at idle of the drive motor (I 0), so that due to the measuring point A' corresponding torque value, the actual characteristic can be moved to the zero point.
  • the torque detection device the motor current or the motor power standard for z.
  • three different torque values such as 0 Ncm (idle), 5 Ncm and 35 Ncm, to measure the to gain torque data required for the calibration. If a measured value lies outside predetermined measured value limits, the operator can be requested via the display 36 to check the drive motor 23 or the treatment instrument 38 placed thereon or to repeat the torque calibration.
  • FIG. 8 shows a first exemplary embodiment of a torque-determining device with which the torque actually exerted by the drive motor and the treatment instrument placed thereon can be determined.
  • the torque exerted by the drive motor and the treatment instrument is converted into an adjustment force for an adjustment medium, whereby the adjustment path of the adjustment medium caused by the adjustment force is detected and converted into a corresponding electrical signal.
  • the displacement medium is a cantilevered and biased leaf spring 67.
  • the torque exerted by the drive motor and the treatment instrument is received by a take-up shaft 63 which is mechanically coupled to a winding drum 64.
  • the winding drum 64 is connected via a tensioning cable 66 with the non-clamped end of the leaf spring 67.
  • a spring 65 is used for damping and reducing the tensioning path, which also allows a force bias of the rope.
  • the take-up shaft 63 Upon exercise of a certain torque of the drive motor with the treatment instrument coupled thereto, the take-up shaft 63 is rotated and the cable 66 is wound on the winding drum 64 accordingly.
  • the leaf spring 67 leaves its original position and is moved to the dashed line in Fig. 8 deflection position. This displacement or this adjustment is a measure of the force exerted on the take-up shaft 63 torque.
  • the leaf spring 67 moves back to its original position due to its bias and the cable 66 is again unwound from the winding drum 64.
  • a switching arrangement 68 For detecting the adjusting path, ie the deflection, of the leaf spring 67, a switching arrangement 68 is provided, wherein according to FIG. 8 a distinction is made between two variants 1 and 2.
  • a switch 68 is provided which forms a circuit together with the leaf spring 67 and an evaluation unit 70.
  • the switch 68 is actuated, thereby triggering a signal change, which is fed to the evaluation unit 70 and communicated.
  • the switch 68 may be fixed or in particular corresponding to the measured values be arranged slidably in the arrow direction. By moving the switch 68 upwards, therefore, a smaller torque and by shifting the switch 68 down a larger torque can be detected.
  • the evaluation unit 70 converts the signal supplied by the switch 68 or the corresponding signal change with the aid of appropriate software into the torque to be measured. With the aid of the torque supplied by the evaluation unit 70, a correction of the actual characteristic line a shown in FIG. 10 is thus possible, and the drive motor with the treatment instrument coupled thereto can be operated with the greatest possible accuracy, taking into account the offset shown in FIG.
  • the evaluation unit 70 shown in FIG. 8 may be included in the torque detection device or else in the control device 21 of the medical treatment device shown in FIGS. 1 and 2.
  • a plurality of individual switches are provided in the longitudinal direction of the leaf spring 67, which are respectively coupled to corresponding resistors 69 and thus form a switch resistance network.
  • different switches of this switch arrangement are thus actuated, so that at the output terminals of this switch arrangement depending on the deflection of the leaf spring 67, a different total resistance value occurs, which can be evaluated by the evaluation unit 70 and converted into the corresponding torque ,
  • a potentiometer may be used, the sliding contact with the leaf spring 67 is mechanically coupled, so that the output signal supplied by the potentiometer varies proportionally with the deflection of the leaf spring 67.
  • the output signal of the potentiometer is also supplied to the evaluation unit 70 shown in FIG.
  • FIG. 9 shows various views of a further exemplary embodiment of the previously described torque-determining device, which is realized in the sense of a hysteresis brake.
  • Fig. 9a shows a cross-sectional view of this device, wherein also a receiving shaft 63 is provided for receiving or transmitting the torque exerted by the drive motor with the treatment instrument.
  • the shaft 63 is connected to a housing or rotary body 72 rotatably mounted by ball bearings 74 in an outer housing 71, wherein this rotary body 72 is coupled to the outer housing 71 via a spiral spring 73.
  • this rotary body 72 is rotated in the outer housing 71, and it is analogous to the embodiment shown in FIG.
  • the output signals of the evaluation unit shown in Fig. 8 70 are supplied, which determines the corresponding torque depending on the signal variations of the switch means.
  • the rotary body 72 is a flat coil spring 79 with, for example, 20 or 40 windings, which unwinds upon rotation of the take-up shaft 63 on the take-up shaft 63 and thus exerts a restoring force for the rotary body 72 to move it back to the original position, if no torque More is applied to the take-up shaft 63.
  • the outer housing 71 has a window 75, so that a reading scale or analog display 76 of the rotary body 72 can be observed through this window.
  • the analog display 76 directly to the rotation of the rotary body 72 corresponding torque values, so that the user can read directly from the rotation of the rotary body 72, the corresponding torque.
  • FIG. 9b - 9e show various views of a variant of the exemplary embodiment shown in FIG. 9a, FIG. 9c representing the corresponding cross-sectional view, FIG. 9d a frontal view, and FIG. 9e a top view of this variant.
  • 9b shows a plan view of the interior of the variant shown in FIG. 9c with the essential components.
  • Fig. 9c substantially correspond to the elements shown in Fig. 9a and are provided with corresponding reference numerals.
  • the torque-determining device is installed in a housing body 77, which also has a treatment tool recess 78, as shown in FIG. 9 c, an angle piece 38 with a headpiece 40 coupled thereto the recess 78 stored and at the same time in this storage position can be mechanically coupled to the take-up shaft 63 of the torque detection device.
  • Fig. 9c in conjunction with Fig. 9b is also apparent that the outer side of the rotary body 72 has a plurality of protruding cam 76, which upon rotation of the rotary body 72 in the direction of arrow shown in Fig.
  • a plurality of these switching cam 76 and the corresponding switch 68 may be arranged vertically one above the other.
  • the switching cams are distributed uniformly along the circumference of the rotary body 72 with the shape shown in Fig. 9b.
  • the switching cams may also have a different outer shape, as far as an actuation the switch 68 is possible.
  • the output signals of the switches 68 are in turn fed to the evaluation unit shown in FIG. 8, which, depending on the signal variations provided by the switches 68, closes the torque of the drive motor coupled to the take-up shaft 63 with the treatment instrument coupled thereto.
  • corresponding latching steps can be provided for the take-up shaft 63 or the rotary body 72, which can be realized by ball detent pins (not shown) arranged in the circumferential direction of the take-up shaft 63 or the rotary body 72.
  • Each detent stage corresponds to a certain torque, such as. 0 Ncm, 15 Ncm or 30 Ncm.
  • the evaluation unit 70 of the corresponding torque detection device supplies the torque actually exerted by the treatment instrument and the drive motor on the take-up shaft 63 or a signal corresponding to the torque which is present in the control unit 21 or one in the control unit 21 existing control unit is supplied, so that the control unit depending on the thus determined torque value, the torque calibration, ie perform the described with reference to FIG. 10 torque correction, and can control the treatment instrument with the greatest possible accuracy by the drive motor 23 is operated with a corresponding power supply.
  • the torque exerted by a treatment instrument 38 placed on the drive motor 23 is determined (eg with the aid of the take-up shaft 63).
  • a modification may also be made such that the treatment instrument 38 is coupled to a treatment tool 39 (eg a drill) and the torque exerted by the drill 39 placed on the treatment instrument 38 is determined and made the basis of the calibration.
  • the torque detection device directly, ie without the aid of the control unit 21, depending on the determined torque data adjusts the power supply of the drive motor 23 accordingly.
  • control device 21 of the medical treatment device 20 shown in FIGS. 1 and 2 can also have a printer connection, so that various technical information, such as e.g. the operating parameter information, date, time, etc. displayed on the display unit 36 can be printed out. Based on such an expression, the treatment process can then be followed and assessed.
  • a serial or parallel interface for connecting the controller may be provided to a computer to transmit data to the computer and on the screen of the computer display an enlarged display or to be able to record data using the computer.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Surgical Instruments (AREA)

Claims (21)

  1. Support (24) destiné à recevoir au moins un instrument de traitement médical (38), un outil de traitement médical (39) ou un moteur d'entraînement (23), comportant un dispositif de réception (44-46), s'étendant au moins en partie le long de la paroi latérale (46) du support (24) et destiné à recevoir un tuyau flexible d'alimentation (22), caractérisé en ce que le dispositif de réception est formé par un bord supérieur (44) et un bord inférieur (45), formant chacun une saillie sur le côté du support (24), et par la partie latérale (46) du support (24), de telle sorte que le tuyau flexible d'alimentation (22) peut être enroulé autour de la partie latérale (46) et est maintenu dans ce cas entre les bords (44, 45).
  2. Support selon la revendication 1, caractérisé en ce que l'un des bords (44, 45) sur la partie latérale (46) du support (24) forme une saillie latérale plus grande que l'autre bord.
  3. Support selon la revendication 2, caractérisé en ce que le bord (44), orienté vers un côté d'introduction du support (24), est moins en saillie sur la partie latérale (46) du support (24) que l'autre bord (45).
  4. Support selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les deux bords (44, 45) sont réalisés sur tout le pourtour de la partie latérale (46) du support (24).
  5. Support Selon l'une quelconque des revendications précédentes, caractérisé par une partie de support (47) pour un moteur d'entraînement (23) pour un instrument de traitement médical (38).
  6. Support selon la revendication 5, caractérisé en ce que la partie de support pour le moteur d'entraînement (23) est formée par un creux (47) qui s'étend de part en part dans le sens longitudinal du support (24).
  7. Support selon la revendication 6, caractérisé en ce que le creux (47) comporte, sur au moins un tronçon longitudinal, un rétrécissement (50) qui est dimensionné de telle sorte qu'un moteur d'entraînement (23) situé dans le creux (47) ne peut pas glisser à travers le rétrécissement (50).
  8. Support selon la revendication 6 ou 7, caractérisé en ce que la forme du creux (47) est adaptée à la forme extérieure du moteur d'entraînement (23).
  9. Support selon l'une quelconque des revendications 6 à 8, caractérisé en ce que le creux (47) comporte, sur au moins un tronçon longitudinal, un dispositif de fixation (52) destiné à retenir le moteur d'entraînement (23) inséré.
  10. Support selon la revendication 9, caractérisé en ce que le dispositif de fixation (52) est réalisé sous la forme d'une fixation tubulaire.
  11. Support selon l'une quelconque des revendications 5 à 10, caractérisé en ce qu'au moins un tronçon de support (48, 49) pour un instrument de traitement médical (38) ou un outil de traitement médical (39) est réalisé latéralement adjacent au tronçon de support (47) pour le moteur d'entraînement (23).
  12. Support selon la revendication 11, caractérisé en ce que ledit au moins un tronçon de support (48, 49) pour l'instrument de traitement médical (38) ou l'outil de traitement médical (39) est formé par un creux en forme de coque.
  13. Support selon les revendications 6 et 12, caractérisé en ce que la profondeur des creux (47-49) est choisie de telle sorte qu'une pièce déposée dans ceux-ci dépasse partiellement sur la surface du support (24).
  14. Support selon l'une quelconque des revendications précédentes, caractérisé en ce que le support (24) est réalisé d'un seul tenant.
  15. Support selon l'une quelconque des revendications 1 à 14, caractérisé en ce que le support (24) est réalisé en deux parties, une première partie de support (60), pouvant pivoter hors du plan du support par rapport à une deuxième partie de support (59), et un creux (47), destiné à recevoir le moteur d'entraînement (23), est réparti sur les deux parties de support (59, 60).
  16. Support selon la revendication 15, caractérisé en ce que les deux parties de support (59, 60) sont assemblées l'une à l'autre par des moyens d'articulation (51).
  17. Support selon la revendication 15 ou 16, caractérisé en ce que l'axe de pivotement s'étant perpendiculairement à l'axe longitudinal du support (24).
  18. Support selon l'une quelconque des revendications 15 à 17 et la revendication 9 ou 10, caractérisé en ce que la première partie de support (60) comporte le dispositif de fixation (52) pour le moteur d'entraînement (23), de telle sorte que, après le pivotement de la première partie de support (60) par rapport à la deuxième partie de support (59), le moteur d'entraînement (23) est, d'une part, déposé dans la partie en creux (47) de la deuxième partie de support (59) et peut, d'autre part, être retenu par le dispositif de fixation (52) de la première partie de support (60) dans une position inclinée par rapport au plan de support de la deuxième partie de support (59).
  19. Support selon la revendication 18 et l'une quelconque des revendications 11 à 13, caractérisé en ce que ledit au moins un tronçon de support (53, 54) pour l'instrument de traitement médical (38) ou l'outil de traitement médical (39) est réalisé dans la deuxième partie de support (59).
  20. Support selon l'une quelconque des revendications précédentes, caractérisé en ce que le support (24) est réalisé dans un matériau apte à être stérilisé.
  21. Support selon la revendication 20, caractérisé en ce que le support (24) est réalisé en silicone.
EP98112072A 1997-07-08 1998-06-30 Support pour un instrument de traitement médical, un outil de traitement médical ou un moteur d'entrainement Expired - Lifetime EP0890352B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29712012U DE29712012U1 (de) 1997-07-08 1997-07-08 Ablage für ein ärztliches Behandlungsinstrument, ärztliches Behandlungswerkzeug oder einen Antriebsmotor
DE29712012U 1997-07-08

Publications (3)

Publication Number Publication Date
EP0890352A2 EP0890352A2 (fr) 1999-01-13
EP0890352A3 EP0890352A3 (fr) 1999-12-01
EP0890352B1 true EP0890352B1 (fr) 2006-08-16

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EP98112072A Expired - Lifetime EP0890352B1 (fr) 1997-07-08 1998-06-30 Support pour un instrument de traitement médical, un outil de traitement médical ou un moteur d'entrainement

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Country Link
EP (1) EP0890352B1 (fr)
AT (1) ATE336218T1 (fr)
DE (2) DE29712012U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999058076A1 (fr) * 1998-05-08 1999-11-18 Heribert Schmid Dispositif d'entrainement pour instruments de perçage, d'incision et de vissage a usage medical
DE19916158C2 (de) * 1999-04-11 2001-03-01 Duerr Dental Gmbh Co Kg Dentale Behandlungseinrichtung

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE2405472A1 (de) * 1974-02-05 1975-08-21 Hiroshi Murata Vorrichtung zum aufbewahren von zahnaerztlichen instrumenten
DE4138681C1 (fr) * 1991-11-25 1993-06-24 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach, De
FR2733915A1 (fr) * 1995-05-09 1996-11-15 Debiotech Sa Dispositif de pompe portable medicale
DE19809276A1 (de) * 1998-03-04 1999-09-09 Alber Koffer mit netzbetriebene Elektrogeräte mit Anschlußkabel

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DE943540C (de) * 1953-06-30 1956-05-24 Hans Sauer Dr Ing Aufbewahrung von Geraeten mit elektrischen Anschlussleitungen
DE3514269A1 (de) * 1985-04-19 1986-10-30 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Ablagestaender zum ablegen von handstuecken
JPS6216106A (ja) 1985-07-15 1987-01-24 富士通株式会社 中空構造セラミツクスの製造方法
US4930628A (en) * 1988-11-21 1990-06-05 Aladdin Industries Inc. Storage and display case having pivotally mounted cover
DE9206022U1 (de) 1991-05-11 1992-08-06 Ulschmid, Werner, 8800 Ansbach Sterilisierfähiges Behältnis für einzelne medizinische und chirurgische Bestecke, Instrumente und Geräte
DE4125313A1 (de) 1991-07-31 1993-02-04 Ritter Gmbh Dentaleinrichtung Verfahren zur steuerung einer zahnaerztlichen behandlungseinrichtung und eine zahnaerztliche behandlungseinrichtung
EP0588228A1 (fr) 1992-09-12 1994-03-23 Ralf Ritter Récipients stérilisable pour trousses et instruments médicaux et chirurgicaux
US5441152A (en) * 1994-03-29 1995-08-15 Estes; Ronald L. Organizer devices for orthopedic equipment normally found in cast removal situations
JP3264607B2 (ja) 1995-07-28 2002-03-11 株式会社モリタ製作所 歯科用ハンドピースのモータ制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405472A1 (de) * 1974-02-05 1975-08-21 Hiroshi Murata Vorrichtung zum aufbewahren von zahnaerztlichen instrumenten
DE4138681C1 (fr) * 1991-11-25 1993-06-24 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach, De
FR2733915A1 (fr) * 1995-05-09 1996-11-15 Debiotech Sa Dispositif de pompe portable medicale
DE19809276A1 (de) * 1998-03-04 1999-09-09 Alber Koffer mit netzbetriebene Elektrogeräte mit Anschlußkabel

Also Published As

Publication number Publication date
EP0890352A3 (fr) 1999-12-01
DE59813688D1 (de) 2006-09-28
DE29712012U1 (de) 1997-11-13
EP0890352A2 (fr) 1999-01-13
ATE336218T1 (de) 2006-09-15

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