EP3678585A1 - Dispositif de maintien flexible - Google Patents

Dispositif de maintien flexible

Info

Publication number
EP3678585A1
EP3678585A1 EP18779568.7A EP18779568A EP3678585A1 EP 3678585 A1 EP3678585 A1 EP 3678585A1 EP 18779568 A EP18779568 A EP 18779568A EP 3678585 A1 EP3678585 A1 EP 3678585A1
Authority
EP
European Patent Office
Prior art keywords
locking
locking unit
joint
elements
holding device
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.)
Withdrawn
Application number
EP18779568.7A
Other languages
German (de)
English (en)
Inventor
Juan Sebastian SANCHEZ LOPEZ
Robert Odenbach
Michael Friebe
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.)
FRIEBE, MICHAEL
Original Assignee
Otto Von Guericke Universitaet Magdeburg
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 Otto Von Guericke Universitaet Magdeburg filed Critical Otto Von Guericke Universitaet Magdeburg
Publication of EP3678585A1 publication Critical patent/EP3678585A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F16C11/103—Arrangements for locking frictionally clamped
    • F16C11/106—Arrangements for locking frictionally clamped for ball joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/041—Allowing quick release of the apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2035—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction
    • F16M11/2078—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction with ball-joint
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
    • F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37—Surgical systems with images on a monitor during operation
    • A61B2090/374—NMR or MRI
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • A61B2090/508—Supports for surgical instruments, e.g. articulated arms with releasable brake mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/021—Locking means for rotational movement
    • F16M2200/022—Locking means for rotational movement by friction

Definitions

  • the invention relates to a flexible holding device, in particular a flexible holding device for preferred use in magnetic resonance tomography (MRT) as well as a locking unit, a tool holder and an instrument holder for use in magnetic resonance tomography (MRT).
  • MRT magnetic resonance tomography
  • MRT magnetic resonance tomography
  • MRI magnetic resonance imaging
  • a holding device comprises at least one locking unit with at least two joint sockets.
  • the holding device may further comprise at least one locking unit with a socket.
  • the joint sockets are designed to allow a pivoting of rod ends received in the joint sockets only by at least one, preferably exactly one, pivot axis.
  • embodiments with a plurality of pivot axes are also conceivable.
  • joint sockets are formed rotatable to each other, so that the orientation of the pivot axes of the joint sockets is mutually variable.
  • This can be achieved, for example, in that the locking unit is divided between the two joint sockets and the two parts of the locking unit are designed to be rotatable relative to each other.
  • a cuff can be placed around the two-part locking unit, which has two circumferential notches on the side facing the locking unit. The two parts of the locking engage with outwardly directed projections positively in this notch, which serves as a guide rail for the rotational movement of the two parts of the locking unit.
  • the holding device further comprises at least one connector element with at least two rod ends, wherein at least one rod end of the connector element is received in a socket of the locking unit.
  • the holding device comprises in a particular embodiment, at least two locking units and at least one connector element, wherein the joint heads of the connector element are each received in a socket of a locking unit.
  • the socket and rod ends may be formed as ball joints, but other types of joints are conceivable and the skilled person will choose a suitable joint construction here.
  • the invention further relates to a locking unit, as already described in more detail below.
  • the locking unit comprises at least two sockets, wherein the sockets allow a pivoting of the joint heads received in the joint sockets around at least one, preferably exactly one, pivot axis.
  • the locking unit comprises at least two locking elements, wherein the locking elements received in a locking position in the joint sockets rod ends lock and in an open position in the joint sockets recorded rod ends to move freely about the pivot axes.
  • arresting units with a joint socket are also conceivable.
  • An advantageous embodiment of the locking unit provides that the joint sockets are rotatable in an open position to each other, so that the orientation of the pivot axes of the joint sockets is mutually variable.
  • the locking elements lock in the locking position, the joint sockets to each other, so that the position of the pivot axes can be set in the locked position.
  • the socket joints at the ends of the locking unit may comprise a recess which is adapted to receive the shaft of the rod ends.
  • a particular embodiment of the locking unit provides that the locking elements are pressed in the locking position by eccentrically arranged eccentric elements of a locking lever against the rod ends received in the joint cups. This pressure both the joint heads are fixed in the joint sockets and the position of the pivot axes fixed to each other.
  • the substantially rod-shaped locking lever is preferably arranged perpendicular to the longitudinal axis of the locking unit at a location between the two joint sockets of the locking unit.
  • the two ends of the locking lever are rotatably mounted in a tubular shell of the locking unit, wherein at least the first end of the jacket also penetrates outwardly. This first end comprises in the region of the outer shell side a rotary lever or at least one attachment point for a rotary lever.
  • the portion of the locking lever located inside the jacket cavity comprises at least two eccentric projections, which face one another with respect to the axis of the locking element.
  • a displaceably mounted locking element On both sides of the locking lever within the tubular shell is in each case a displaceably mounted locking element, the outer diameter of which preferably corresponds substantially to the inner diameter of the tubular jacket.
  • the length of the locking element is tuned to the eccentric projections of the locking lever, that the locking elements do not lock the hinge heads and pivot axes in the open position and lock the locking elements in the locking position of the locking lever, the rod ends and pivot axes.
  • the locking takes place in that the locking elements are pressed by the eccentric projections of the locking element against the joint heads, which in turn are pressed against the joint sockets of the locking unit and the projections of the two parts of the locking unit are pressed into the notch.
  • both locking elements are moved by adjusting the one locking lever simultaneously with a handle and locked or released with a handle.
  • the ends of the locking elements which extend to the rod ends, may be coated with a material that additionally prevents slippage of the rod ends, for example an elastomer.
  • the material of the locking elements may partially consist of an elastomer.
  • Other ways of locking are known in the art.
  • the locking unit is adjustable in length between the joint sockets.
  • An advantageous embodiment of the locking unit provides that the locking unit comprises a shell of at least two shell parts, wherein at least two shell parts for length adjustment of the locking unit are adjustable to each other.
  • a special embodiment of the locking unit provides that the at least two shell parts can be latched into one another via latching elements.
  • at least one of the locking elements of the locking unit comprises a first and a second Arretier electrodeteit, wherein the first and second locking element part for length adjustment of the locking unit are adjustable to each other and latching elements are latched into one another.
  • the latching elements of the shell parts and the locking element parts are preferably formed according to a particular embodiment as partially formed in the circumferential direction form-fitting elements.
  • These form-fitting elements may be formed, for example, as threads, hooks or teeth of a toothing, wherein the latching elements may also be formed as a partially formed in the longitudinal direction of the toothing.
  • the latching elements are arranged according to a particularly advantageous embodiment of the corresponding shell parts and Arretier institute kind that at least one shell part and one of the Arretier institutemaschine are mutually adjustable with respect to the other shell and Arretier institute hope.
  • a locking on the locking elements is further made possible with a length adjustment of the locking because the locking element changes its length analogous to the length adjustment of the shell.
  • the holding device comprises a tool holder as described below.
  • the described tool holder is preferably intended for use on a holding device according to the invention, but it is not limited to this.
  • the tool holder comprises at least one bore for receiving a tool.
  • a closing position at least one closing shaft engages in the bore and thus fixes the tool in the bore.
  • the closing shaft In an open position, the closing shaft does not engage in the bore and the tool can be removed from the bore.
  • the closing shaft is preferably displaceable in accordance with an advantageous embodiment of the tool holder by a releasable via an unlocking release mechanism from a closed position to an open position.
  • the unlocking mechanism comprises a spring which moves the closing shaft by means of spring force into the closed position.
  • the holding device in addition to the tool holder also includes an instrument holder as described below.
  • the described instrument holder is preferably intended for use with the holding device according to the invention, but is not limited thereto.
  • the instrument holder comprises a housing in which at least one rotatable flat thread is arranged.
  • a plurality of slides preferably three slides are arranged, which pass through first openings in the housing through the housing.
  • the first openings of the housing are preferably formed as T-shaped guide rails, which extend like a spoke in a straight line from the central recess to the edge of the cylinder.
  • the three guide rails are arranged at an angle of 120 ° to each other.
  • a slider runs in the T-shaped guide rails.
  • Each slider includes side extensions that are received by the T-shaped guide rails of the lid.
  • the slides are movable towards each other by rotation of the flat thread in a first rotational direction and movable away from each other by rotation of the flat thread in the second rotational direction opposite to the first rotational direction.
  • the flat thread has rotating means that allow rotation of the flat thread.
  • the rotating means are accessible from the outside via at least one second opening in the housing of the instrument holder.
  • recesses may preferably be arranged centrally, so that a clamped instrument, such as a needle, in particular a biopsy needle, can be passed through this recess of the instrument holder.
  • the one end of the slider extends into the flat thread and engages with an extension therein.
  • the other end of the slider extends to outside the case.
  • the pushers include gripping surfaces which may be flared to provide a larger lug surface for holding an instrument.
  • the described instrument holder is preferably intended for use with the holding device according to the invention, but it is not limited to this.
  • the holding device according to the invention may additionally comprise a fixing unit.
  • the fixing unit comprises at least one joint head for articulated connectability of the fixing unit with a joint socket of a locking unit of the holding device.
  • the fixing unit comprises means for fixing the fixing unit to a substrate and thus serves for detachable fixing of the entire holding device to this substrate.
  • the fixing agent is selected by the person skilled in the art according to the substrate on which the fixing unit is to be detachably fastened. These means may be, for example, screw, clamp, suction or other compounds.
  • the holding device and also the tool holder and the instrument holder are suitable for use in MRI.
  • MRI magnetic resonance imaging
  • a particularly preferred material is polycaprolactam (nylon 6), but many other materials known to those skilled in the art are also suitable for use in MRI.
  • FIGS. show a particularly preferred embodiment of the invention. However, the invention is not limited to the embodiment shown. In particular, the invention includes, as far as is technically feasible, any combination of the technical features that are listed in the claims or described in the description as being relevant to the invention.
  • Fig. 1 is a view of a first embodiment of the holding device according to the invention.
  • Fig. 2 is a longitudinal section through a first
  • Embodiment of the locking element with a connecting element Embodiment of the locking element with a connecting element.
  • Fig. 3 is a view of the invention
  • Fig. 4 is a partial cross section through the
  • Fig. 5 is a view of a second
  • Fig. 6 is a longitudinal section through the second
  • FIG. 7 shows a detailed view of a first casing part.
  • Fig. 8 is a detail view of a first
  • Fig. 10 is a view of a preferred
  • Fig. 1 1 is a partial section of the housing of a preferred embodiment of the instrument holder.
  • Fig. 12 shows the flat thread of the instrument holder with two slides.
  • the fixing unit 24 is adapted to be fixed to a substrate by means of a guide and a screw. Depending on the substrate, the person skilled in the art will choose suitable means.
  • the fixing unit 24 furthermore has a joint head 5 (FIG. 2) which engages in a joint socket 3 (FIG. 2) of a locking unit 2.
  • the locking element 2 is connected to a second locking element 2.
  • the connector element 4 comprises two joint heads 5 (FIG. 2) which engage in a respective joint socket 3 (FIG. 2) of the two locking units 2.
  • the locking of the locking units 2 takes place in each case via a locking lever 8, wherein in figure 1 only one is shown.
  • a tool holder 12 which has already been described in more detail below, is received with its own joint head.
  • instrument holder 17 is added.
  • FIG. 2 shows a first embodiment of the locking unit 2 in longitudinal section.
  • the substantially rod-shaped locking lever 7 is preferably arranged perpendicular to the longitudinal axis of the locking unit 2 at a location between the two joint sockets 3 of the locking unit 2.
  • the two ends of the locking lever 7 are rotatably mounted in the tubular jacket 9 of the locking unit 2, wherein at least the first end of the jacket 9 also penetrates outwardly.
  • This first end comprises in the region of the outer shell side a rotary lever 8 or at least one attachment point for a rotary lever.
  • the within the shell cavity portion of the locking lever 8 comprises at least two eccentric projections 7, which face relative to the axis of the locking element.
  • the eccentric projections 7 can be moved from a locking position to an open position.
  • a displaceably mounted locking element 6 On both sides of the locking lever 8 within the tubular shell 9 is in each case a displaceably mounted locking element 6, the outer diameter of which preferably corresponds substantially to the inner diameter of the tubular jacket 9.
  • the length of the locking element 6 is preferably to vote on the eccentric projections 7 of the locking lever 8, that the locking elements 6 in the open position, the rod ends 5 and pivot axes do not lock and the locking elements 6 lock in locking position of the locking lever 8, the rod ends 5 and pivot axes.
  • the locking takes place in that the locking elements 6 are pressed by the eccentric projections 7 of the locking element 8 against the rod ends 5, whereby these in turn are pressed against the joint sockets 3 of the locking unit 2 and the projections 27 of the two parts of the locking unit 2 in the notch 28th be pressed. Accordingly, both locking elements 6 are displaced and thus locked or released by adjusting the one locking lever 8 simultaneously with a handle.
  • FIG. 3 shows a preferred embodiment of the tool holder 12 with an angular bore 13, a closing shaft 14 and an unlocking element 15.
  • FIG. 4 shows a partial section of the tool holder 12 according to FIG. 3 with an angular bore 13, a closing shaft 14, a
  • Unlocking element 15 and a spring 16 The closing shaft 14 engages with one end in the bore 13 and thus fixes a tool introduced there.
  • Unlocking element 15 moves out of the bore 13.
  • a spring 1 6 moves the closing shaft 14 in the closed position, so without pressure on the
  • FIG. 5 shows a further preferred embodiment of the locking unit 2 with a length adjustment.
  • the joint ball 5 (FIG. 2) is pivotable in the joint socket 3 (FIG. 2) at least in one axis 29.
  • the joint ball 5 ( Figure 2), however, is adjustable in several pivot axes.
  • the axis 29 defined by the joint ball 5 (FIG. 2) and the joint socket 3 (FIG. 2) can be rotated for this purpose.
  • the joint ball 5 (FIG. 2) can be rotated in a certain range with respect to the socket pan 3 (FIG. 2) in all three spatial axes.
  • FIG. 2 shows the preferred embodiment of the locking unit 2 with a length adjustment in longitudinal section.
  • the locking unit 2 comprises a shell of two shell sections 30a, 30b, wherein shell section 30a is formed in one piece and shell section 30b at least in two parts.
  • the jacket parts 9a, 9b of the jacket portion 30b are adjustable to the length adjustment of the locking unit 2 formed to each other and via first latching elements 10 into one another latched.
  • At least one of the locking elements 6 of the locking unit 2 comprises a first and a second locking element part 6a, 6b, wherein first and second locking element 6a, 6b for length adjustment of the locking unit 2 are also adjustable to each other and on second latch members 1 1 are latched into each other.
  • the latching elements 10, 10a, 10b of the shell parts 9a, 9b and the latching elements 1 1, 1 1 a, 1 1 b of the locking element parts 6a, 6b are preferably formed as partially formed in the circumferential direction threads 31 or as a partially formed teeth.
  • the latching elements 10, 10a, 10b, 11a, 11b are arranged on the corresponding jacket parts 9a, 9b and locking element parts 6a, 6b in such a way that at least one jacket part 9a and one of the locking element parts 6a jointly with respect to the other jacket and locking element parts 9b , 6b are adjustable.
  • Coupling of the length adjustment of casing parts 9a and locking elements 6a is a locking on the locking elements 6 further allows for a length adjustment of the locking unit 2, because the locking element 6 changes its length analogous to the length adjustment of the shell 9.
  • Figure 7 shows a detailed view of the shell part 9a with the latching elements 10 in the form of partially formed threads or teeth 31st
  • the threads 31 are each formed only on two opposite sides of the shell part 9a.
  • the threads 31 are also formed accordingly only on two opposite sides of the shell part 9b.
  • the threads 31 form an external thread
  • the threads 31 form an internal thread or an internal toothing.
  • the threads 31 or toothing of the two casing parts 9a, 9b engage in each other and thus do not permit any length adjustment.
  • the position of the shell parts 9a, 9b is rotated by 90 °, so that the threads precisely no longer interlock and a length adjustment is possible.
  • Figure 8 shows a detailed view of the locking element 6a with the latching elements 1 1 a in the form of circumferentially partially formed threads or teeth 31 as external thread / -verzahnung.
  • Figure 9 shows a detailed view of the locking element 6 b with the latching elements 1 1 b in the form of circumferentially partially formed threads 31 as internal thread / -verzahnept.
  • the interaction of the internal and external thread / toothing 31 of the locking element parts 6a, 6b works analogously to the interaction of the shell parts 9a, 9b.
  • the threads 31 of the two locking element parts 6a, 6b engage in one another and thus do not permit any length adjustment.
  • the position of the Arrtier institutener 6a, 6b is rotated by 90 ° to each other, so that the threads 31 exactly no longer interlock and a length adjustment is possible.
  • FIG. 10 shows a view of a preferred embodiment of the instrument holder 17 according to the invention with a housing 18 and preferably three slides 20.
  • a holder is shown below the housing 18 with which the instrument holder 17 in the bore 13 (FIG. 3) of the tool holder 12 already described ( Figure 3) can be recorded.
  • FIG. 1 1 shows the housing 18 of the instrument holder 17 in a partial section.
  • the housing 18 includes first openings 21, which are preferably formed as T-shaped guide rails 21 and the spoke-like rich in a straight line from the central recess 30 to the edge of the housing 18.
  • the guide rails 21 are arranged at an angle of 120 ° to each other.
  • the T-shaped guide rails 21 in each case runs a substantially cuboidal slide 20.
  • Each slide comprises two lateral extensions 32 which are received by the T-shaped guide rails 21 of the housing 18.
  • FIG. 12 shows the flat thread 19, which is rotatably arranged in the housing 18 of the instrument holder 17.
  • the flat thread 19 has turning means 22 which allow the flat thread 19 to rotate.
  • the rotation means 22 are accessible via at least one second opening 23 in the housing 18 of the instrument holder 17 from outside the housing 18.
  • the outer end of the slider 20 extends beyond the housing 18.
  • the slides include gripping surfaces 33 which may be flared to provide a larger approach surface for holding an instrument.
  • the slides 20 are movable towards each other by rotation of the flat thread 19 in a first rotational direction and movable away from each other by rotation of the flat thread 19 in a second rotational direction opposite to the first rotational direction.
  • recesses 31 may preferably be arranged centrally, so that a clamped instrument, such as a needle, through this recess of the instrument holder 17 can be passed.
  • the holding device 1 can be formed by a plurality of locking units 2, both of the first embodiment and of the second embodiment.
  • the locking units 2 can be combined with each other in the form of a kit for forming the holding device 1.
  • a connector element 4 is arranged in each case with at least two rod ends 5, wherein in each case a joint head 5 is received in a joint socket 3 of the combined locking units 2.
  • Locking element (6a, 6b locking element parts)

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Surgical Instruments (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un dispositif de maintien comprenant au moins une unité de blocage (2) pourvue d'au moins deux cavités d'articulation (3), les cavités d'articulation (3) étant conçues pour permettre un pivotement de têtes d'articulation (3), logées dans les cavités d'articulation (3), respectivement autour d'un axe de pivotement. L'invention concerne également une unité de blocage, un logement d'outil et un porte-instrument destiné à être utilisé dans la tomographie par résonance magnétique (IRM).
EP18779568.7A 2017-09-08 2018-09-10 Dispositif de maintien flexible Withdrawn EP3678585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017120771.6A DE102017120771B4 (de) 2017-09-08 2017-09-08 Flexible Haltevorrichtung
PCT/EP2018/074277 WO2019048667A1 (fr) 2017-09-08 2018-09-10 Dispositif de maintien flexible

Publications (1)

Publication Number Publication Date
EP3678585A1 true EP3678585A1 (fr) 2020-07-15

Family

ID=63713811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18779568.7A Withdrawn EP3678585A1 (fr) 2017-09-08 2018-09-10 Dispositif de maintien flexible

Country Status (4)

Country Link
US (1) US20200275989A1 (fr)
EP (1) EP3678585A1 (fr)
DE (1) DE102017120771B4 (fr)
WO (1) WO2019048667A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240032721A (ko) * 2021-07-08 2024-03-12 한화비전 주식회사 전자기기 장착 어셈블리
WO2023112061A1 (fr) * 2021-12-19 2023-06-22 Nesa Medtech Private Limited Dispositif stéréotaxique destiné à être utilisé dans des procédures médicales

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921576C1 (de) * 1999-05-10 2000-06-29 Wolf Gmbh Richard Kugelgelenkverbindung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211405A (en) * 1964-01-30 1965-10-12 Fey Support for photographic instruments and the like
US4491435A (en) * 1983-07-18 1985-01-01 Automated Medical Products Corporation Jointed stand
US5419522A (en) * 1992-05-06 1995-05-30 New Focus, Inc. Universal optical mount
DE29521305U1 (de) 1995-06-09 1996-12-05 Richard Wolf Gmbh, 75438 Knittlingen Haltearmsystem, insbesondere für chirurgische Instrumente, mit Armsegmenten und Klemmvorrichtungen zum Arretieren der Armsegmente
DE19526915B4 (de) * 1995-07-24 2004-05-06 Aesculap Ag & Co. Kg Haltevorrichtung für chirurgische Zwecke
US5804747A (en) * 1997-11-26 1998-09-08 Chen; Chang-Hui Musical instrument holder
US6767153B1 (en) * 2003-02-10 2004-07-27 Dana W. Holbrook Locking positional arm device
US9316345B2 (en) * 2014-06-09 2016-04-19 Matthew Tarnay Double ball joint locking device
JP6412783B2 (ja) * 2014-11-28 2018-10-24 三鷹光器株式会社 関節式器具保持アーム
WO2016160272A1 (fr) * 2015-03-27 2016-10-06 Sonitrack Systems, Inc. Bras de support alimenté rapidement repositionnable
US9810973B2 (en) * 2015-04-27 2017-11-07 Sage Elmohtaseb Omnidirectional bracket for cameras and accessories
GB2548634B (en) * 2016-03-26 2021-09-08 Subratie Andrew Utility arm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921576C1 (de) * 1999-05-10 2000-06-29 Wolf Gmbh Richard Kugelgelenkverbindung

Also Published As

Publication number Publication date
DE102017120771A1 (de) 2019-03-14
WO2019048667A1 (fr) 2019-03-14
DE102017120771B4 (de) 2020-06-04
US20200275989A1 (en) 2020-09-03

Similar Documents

Publication Publication Date Title
EP3003198B1 (fr) Dispositif adaptateur pour table d'opération
DE602004008518T2 (de) Endoskopischer Spreizer
DE3724816A1 (de) Kugellagerverbindung
EP2934359B1 (fr) Porte-intrument
DE3206789A1 (de) Gelenkiger tragarm
DE29916026U1 (de) Haltevorrichtung für ein chirurgisches Instrument
DE9217932U1 (de) Endoinstrument
DE102009018917A1 (de) Operations-Assistenz-System
DE102008029301A1 (de) Endoskop- und Schaftsystem
DE10149385B4 (de) Chirurgisches Instrument zum Einsetzen eines Wirbelersatzkörpers
DE4115548C2 (de) Chirurgische Zange zur Anwendung in der Laparoskopie
EP3678585A1 (fr) Dispositif de maintien flexible
WO2011101111A1 (fr) Dispositif de guidage d'une canule médicale sur une tête à ultrasons
WO2003101316A1 (fr) Instrument medical
DE102014101009A1 (de) Knochenspreizer mit verdrehbaren Valven
DE202006020416U1 (de) Chirurgischer Retraktor
EP3449888B1 (fr) Appui-tête pour table d'opération
DE202017101641U1 (de) Retraktorvorrichtungsgerät für chirurgische Operation
DE10341561B4 (de) Medizinisches Gerät
DE3343867A1 (de) Vorrichtung zur loesbaren befestigung des aufsatzes eines chirurgischen instruments
DE202020107591U1 (de) Positionierarm
DE102007035132A1 (de) Chirurgisches Instrument zum Spreizen von Gewebe
DE102021210542A1 (de) Stereotaxierahmen
DE19926423B4 (de) Verstellbare Halterung für ein chirurgisches Instrument
DE60037736T2 (de) Bilderzeugungsgerät

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200408

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: A61B0090500000

Ipc: F16C0011100000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F16M 11/20 20060101ALI20231031BHEP

Ipc: F16C 11/10 20060101AFI20231031BHEP

INTG Intention to grant announced

Effective date: 20231201

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FRIEBE, MICHAEL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20240403