JPH0543780Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a medical device that enables tubes connected to general medical and dental instruments to be automatically disinfected each time they are used or stored. This invention relates to a disinfection device for instrument tubes.

(Problem to be solved by the invention) Dental instruments such as handpieces, scalers, three-way syringes, and vacuum syringes are connected to tubes or vacuum tubes that supply water, air, etc. ing.
Instruments inserted into the oral cavity and used for medical treatment are used under careful disinfection and hygiene management, such as disinfecting them each time they are used, but the tubes connected to them, i.e. Disinfection of instrument tubes has not been given much attention in the past, partly due to the lack of appropriate disinfection equipment, and it has only been necessary to disinfect instrument tubes periodically or when contamination is detected. Instrument tubes were only disinfected by wiping them with a cloth soaked in a disinfectant such as alcohol, and the instrument tubes were never disinfected for each patient after each use. However, it is not uncommon for a practitioner to touch the instrument tube during medical treatment for reasons such as cleaning the instrument tube.
Therefore, if the practitioner touches the tube with hands contaminated in the patient's mouth, the tube becomes contaminated, and this contamination of the tube becomes a route of infection, causing hepatitis, AIDS, etc. to be transmitted to the practitioner, caregiver, or other patients. There was a danger of doing so.

In view of the above points, it is an object of the present invention to provide a device that can automatically disinfect an instrument tube each time it is pulled out or stored.

(Means for Solving the Problem) The present invention disinfects the surface of the tube at a passage position through which the instrument tube always passes when it is pulled out and stored, preferably as close as possible to the holding position of the instrument. It is equipped with a disinfection device.

As a disinfection device, as detailed in the examples,
In addition to various contact-type devices that disinfect the tube by contacting the entire surface of the tube through which a drug-impregnated body impregnated with a disinfectant passes, there are also non-contact devices that use disinfectant spray, mist, etc., for medical treatment. Various types can be selected and used as appropriate depending on the configuration of the equipment and the installation location of the disinfection device. In addition, the location where the disinfection device is installed depends on the type and configuration of the medical equipment as detailed in the examples, such as in the drawer of the instrument tube,
Properly select and provide a location where the entire instrument tube that is pulled out during storage passes through and comes into contact with the disinfection device.

In addition, in the medical equipment equipped with the disinfection device of the present invention, the instrument tube is made of a material with excellent chemical resistance such as silicone rubber so that it will not deteriorate or age due to disinfection each time it is pulled out or stored. It is desirable that the

(Function) According to the present invention, when a practitioner pulls out an instrument from a holder for medical treatment and returns it to the holder after use, the instrument tube is pulled out and stored at a position where the tube passes through. Since the tube surface is automatically disinfected using the provided disinfection device, the tube surface is automatically disinfected, so that the operator and the caregiver do not have to involve new labor in disinfecting the tube, and it is possible to complete treatment for at least one patient. Since tube disinfection is performed on a one-to-one basis, high-level disinfection and hygiene management is possible.

The structure and operation of the present invention will be explained in more detail by citing a plurality of embodiments below.

(Example) A top view and a side view for explaining a chair unit for dental treatment equipped with the instrument tube disinfection device of the present invention are shown in FIGS. 1A and 1B. Further, FIG. 2 shows a top view for explaining the inside of the backrest of the chair unit. In the figure, 1 is a seat, 2 is a backrest, and 3 is a headrest. 4 is a spittoon unit, 5 is a foot petal, and 6 is a disinfection operation switch provided on the side of the backrest 2. An instrument holder 8 is provided at the shoulder 7 of the backrest 2, and a three-way syringe 10, a straight handpiece 11, a contra-angle handpiece 12, an alpirator 13, etc. are held in a guide 9 of the instrument holder 8 so as to be freely drawn out. 14 is instrument tube 1
5 tube storage box with automatic retracting device, also called a pulley device. 16 is a disinfection device provided adjacent to the guide of the instrument holder 8.

An enlarged cross-sectional view of the instrument guide 9 and disinfection device is shown in FIG. bag nut 1
An instrument connected to the instrument tube 15 by 7, that is, a contra-angle handpiece 12 in the figure, is housed and held in the instrument guide 9 so as to be freely drawn out.
The disinfection device 16 is configured as a disinfection cartridge housed in a case holder 18 provided at the end of the guide 9, and the cartridge is composed of a cartridge case 19 and a ring-shaped chemical solution impregnated body 20 housed within the case. The chemical solution-impregnated body is made of a liquid-absorbing material such as felt, absorbent cotton, or water-absorbing resin, and is impregnated with a disinfectant that has a disinfecting effect even when it comes in contact with air, such as cresol, inverse soapy water, or alcohol. , the inner peripheral surface 21 of the ring is the tube 15
in close contact with the surface of the Therefore, each time the instrument is pulled out or stored, that is, the instrument tube is pulled out or stored, the surface of the tube 15 is automatically disinfected by the chemical liquid impregnated body 20. In addition, cartridge case 1
9. The drug solution impregnated body 20 is divided into two parts for ease of mounting. In FIG. 3, an opening 23 is shown in the back cover 22 of the backrest 2, and this opening 23 can be used to replace the cartridge or replenish the disinfectant solution by spraying a chemical solution onto the drug-impregnated body of the cartridge. be exposed.

Replenishment of the disinfectant solution can also be performed using a pneumatic liquid supply device as shown in FIG. 4.
That is, a chemical solution bottle 24 containing a disinfectant solution 25
The upper air chamber 26 is connected to the air pressure source A via a flow rate adjustment valve 27 and a solenoid valve 28.

On the other hand, one end of the chemical liquid supply pipe 29 is connected to the chemical liquid bottle 24.
The other end is opened into the disinfectant solution 25 of each disinfectant cartridge, and the other end is opened into the chemical solution impregnated body 20 of each disinfectant cartridge. Therefore,
When the solenoid valve is opened and air is introduced into the air chamber 26 of the chemical liquid bottle 24, the pressure causes the chemical liquid bottle 24 to
The disinfectant solution 25 in the disinfectant cartridge is sent through the feed pipe 29 to the drug solution impregnated body 20 of each disinfectant cartridge. In this case, the time period during which the solenoid valve is open can be automatically controlled using a timer device, so that, for example, disinfectant solution corresponding to the amount of disinfectant solution consumed in one day can be replenished, and further disinfection can be performed. By adding a timer device that opens a solenoid valve in accordance with the timing of liquid replenishment, completely automatic replenishment is also possible in which an appropriate amount of replenishment is refilled at appropriate replenishment time intervals.

Next, another example of the disinfection device provided adjacent to the end of the instrument guide is shown in FIG. 5 (cross-sectional view). In the figure, 9 is an instrument guide, and 15 is an instrument tube. A pair of rotating disinfection rollers 30 provided adjacent to the ends of the guide 9 are covered with a chemical liquid impregnated body 20 such as felt impregnated with a disinfectant, and the chemical liquid impregnated body has a cross section that fits into the shape of a tube. It has a semicircular concave circumferential groove 31, and this concave circumferential groove 31 comes into contact with the surface of the tube 15 to disinfect the tube. Note that the interval between the pair of rotating disinfection rollers can be adjusted.

FIG. 6 (longitudinal sectional view) shows still another example of a disinfection device provided adjacent to the end of the instrument guide. In this example, a case 32 is attached to the end of the instrument guide 9, and the drug solution impregnated body 20 housed in the case disinfects the tube 15. 33 is an automatic or manual injection port for disinfectant provided in the case 32.

An example in which a disinfecting device is inserted into the instrument guide near the end of the instrument guide is shown in FIGS. 7 and 8.

FIGS. 7A and 7B show a vertical front view and a vertical side view, respectively, and a rotary disinfection roller 34 is rotatably provided in the cutout 33 of the instrument guide 9. In addition, rotating disinfection roller 3
The chemical solution impregnated body 20 of No. 4 is formed in a cylindrical shape and is mounted on the roller body 35.
Although the figure shows a pair of rotating sterilizing rollers, two pairs of rotating sterilizing rollers may be provided in a relationship perpendicular to each other so that the rollers are in contact with the entire circumferential surface of the tube 15.

8A (vertical front view) and FIG. 8B (vertical side view), a C-ring-shaped chemical liquid impregnated body 20 is inserted into the cutout 37 of the instrument guide 9 together with its case 36. ing. Although only one cartridge is shown in the figure in this example, two cartridges are provided so that the openings of the C-ring-shaped chemical liquid-impregnated body 20 are opposite to each other, and the entire circumference of the tube 15 is covered with two cartridges. The chemical liquid impregnated body may be brought into contact with the chemical liquid impregnated body.

FIG. 9 is an external view showing the stored state of an instrument and an instrument tube in a cart unit type or over arm type unit in a dental treatment apparatus. In the figure, 1 is a unit table, 2 is an instrument holder, and 4 is an instrument receiver.
5 is an instrument such as a three-way syringe or a handpiece, and 6 is an instrument tube. The instrument 5 is held in the holding hole 3 of the instrument holder 2 so as to be freely drawn out, and placed on the instrument receiver 4. Instrument holder 2 in this case
A partially vertical side view of the instrument receiver 4 is shown in FIG. 10A, and a top view is shown in FIG. 10B. Inside the instrument holder 2, there is a rotating disinfection roll 8 immediately after the hold hole 3.
is provided. Since the tube 6 is pulled out and stored by passing through the holding hole 3 and the rotating disinfection roll 8, the surface of the tube can be disinfected each time the tube is pulled out or stored. In place of the rotating disinfection roll 8, a disinfection cartridge in which a chemical solution impregnated body is formed in a ring shape or a C-ring shape is provided, and the tube is pulled out and stored while passing through the chemical solution impregnated body ring and in contact with the inner peripheral surface of the ring. Of course, there is no harm in doing so. In the figure, 7 is a cap nut that connects the instrument and the tube.

In the present invention, each time the instrument tube is pulled out or stored, it is disinfected with a disinfectant such as cresol, inverted soapy water, or alcohol, so the instrument tube is preferably made of silicone rubber with excellent chemical resistance. As mentioned above, the syringe guide is composed of a tube, but when the syringe guide is made of synthetic resin, the friction between the silicone rubber tube and the synthetic resin of the syringe guide makes the silicone rubber tube (instrument tube) smooth. Drawers and storage may be obstructed. In order to reduce this friction, the method shown in FIG. 5 or 7 should be used rather than the embodiment shown in FIG. 3, FIG. 6, or FIG. Although the rotating roll type embodiment shown is more convenient, in order to further reduce friction and take up less installation space, the instrument tube 15 of the syringe guide 9, as shown in cross-section in FIG. A bead ring 38 impregnated with a disinfectant may be removably provided at the contact portion with the disinfectant. As shown in FIG. 12, such a bead ring may be made of porous beads 39 that can be impregnated with a disinfectant, such as sponge rubber or resin beads, or sponge-like sintered metal or ceramic beads, and a round metal wire. ring 40
Preferably, a large number of beads 39 are inserted through the ring 40 so that each bead 39 can rotate around the ring 40.

Also, instead of the bead ring 38, at the location,
As shown in FIG. 13, a pair of rolls 41 made of a material that can be impregnated with a disinfectant solution and impregnated with a disinfectant solution may be provided in a removable manner in the same way as the beads, or a pair of rolls 41, as shown in FIG. Three rolls 41 impregnated with disinfectant as shown may be detachably provided.

Note that these bead rings, paired rolls, and three rolls may of course be provided immediately after the syringe guide as in the case of FIG. 3, or in the middle of the syringe guide as in the case of FIG.

The above description of the present invention is not limited to dental treatment equipment, but can also be applied to disinfection of instruments and tubes in medical treatment equipment other than dentistry.

(Effects of the invention) According to the invention, the instrument tube can be automatically and reliably sterilized each time it is pulled out and stored. Even if the tube becomes contaminated by touching the tube, the risk of infection from hepatitis, AIDS, etc. due to the contamination of the tube becoming an infection route is eliminated.

Additionally, instrument tubes can be disinfected automatically for each patient on a one-to-one basis.
This method has the advantage of saving time and effort in disinfection management and hygiene management of the medical room and achieving a high degree of disinfection and sanitary effect.

[Brief description of the drawings]

Figures 1A and 2B are top and side views of a dental chair unit equipped with the instrument tube disinfection device of the present invention, Figure 2 is a top view of the backrest of the chair unit, and Figure 3 is an instrument guide and side view. FIG. 4 is an enlarged sectional view showing the disinfection device, and FIG. 4 is a piping diagram of the disinfectant supply system. FIG. 5 is a sectional view showing another example of the disinfection device of the present invention, and FIG. 6 is a longitudinal sectional view of still another example. FIGS. 7A and 7B and FIGS. 8A and 8B respectively show a longitudinal sectional front view and a longitudinal sectional side view of another embodiment of the disinfection device of the present invention. Fig. 9 is an external view showing the stored state of instruments and instrument tubes in the cart unit and arm-type unit of the dental treatment device, and Fig. 10 A and B are a partial longitudinal sectional side view and top view of the instrument holder portion thereof. It is. Furthermore, FIG. 11 shows a sectional view of another example of the sterilization device of the present invention, and FIGS. 12, 13, and 14 respectively show a bead ring and a pair of rolls used in the sterilization device of FIG. 11. and is an explanatory diagram of three rolls. Explanation of symbols, in FIGS. 1 to 8 and 11 to 14, 1... Sheet, 2...
Backrest, 3...Head rest, 4...Spittone unit, 5...Foot pedal, 6...Operation switch, 7...Shoulder opening, 8...Instrument holder, 9...Instrument guide, 1
0... Three-way syringe, 11... Straight handpiece, 12... Contra-angle handpiece, 13... Aspirator, 14... Pulley device, 15... Instrument tube, 16
... Disinfection device, 17 ... Bag nut, 18 ... Case holder, 19 ... Cartridge case, 20
...Chemical liquid impregnated body, 21...Ring inner peripheral surface, 22...
...Back cover, 23...Opening, 24...Medicine bottle, 25...Disinfectant, 26...Air chamber, 27...
...Flow rate adjustment valve, 28... Solenoid valve, 29... Chemical solution supply pipe, 30... Rotating disinfection roller, 31...
Concave circumferential groove, 32...Case, 33...Disinfectant inlet, 34...Rotating disinfection roller, 35...Roller body, 36...Case, 37...Cut portion of guide 9, 38...Bead ring , 39... Porous beads, 40... Metal round wire ring, 41... Roll impregnated with disinfectant. 9 and 10, 1... unit table, 2... instrument holder, 3... hold hole, 4...
Instrument holder, 5...Instrument, 6...Instrument tube, 7...Bag nut, 8...Rotating disinfection roll.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A disinfection device for disinfecting the surface of an instrument tube connected to a medical instrument is provided in a passageway through which the tube passes when the tube is drawn out or stored. Disinfection device for medical instrument tubes. 2. The disinfection device for a medical instrument tube according to claim 1, wherein the disinfection device is provided adjacent to the end of the guide of the instrument holder. 3. The sterilizing device for a medical instrument tube according to claim 1, wherein the sterilizing device is inserted into a guide of the instrument holder. 4. The disinfection device for a medical instrument tube according to claim 1, wherein the disinfection device is provided immediately after the holding hole of the instrument holder. 5. The disinfection device is characterized by being composed of a cassette case and a ring impregnated with a chemical solution and made of a liquid-absorbing material such as felt, absorbent cotton, or liquid-absorbing resin and impregnated with a disinfectant solution. A disinfection device for a medical instrument tube according to claim 1, 2, 3 or 4. 6. A claim characterized in that the disinfection device is constituted by a rotating roll having a layer of a chemical liquid-impregnated body made of a liquid-absorbing material such as felt, absorbent cotton, or liquid-absorbing resin impregnated with a disinfectant liquid on its outer periphery. 4. A disinfection device for a medical instrument tube according to 1, 2, 3 or 4. 7. The sterilization device for a medical instrument tube according to claim 1, 2, 3 or 4, wherein the sterilization device is constituted by a porous roll impregnated with a disinfectant. 8. The sterilization device for a medical instrument tube according to claim 1, 2, 3 or 4, wherein the sterilization device is composed of porous beads impregnated with a disinfectant solution. 9. The medical instrument according to claim 5, wherein the disinfectant solution stored in the drug solution bottle is fed to the drug solution impregnated body through a feeding pipe by air pressure introduced into the bottle, and the disinfectant solution is replenished. Tube disinfection equipment.