JP7150300B2 - Instrument hose withdrawal amount adjustment device and dental treatment unit - Google Patents

Description

TECHNICAL FIELD The present invention relates to an instrument hose withdrawal amount adjusting device and a dental treatment unit, and more particularly, to retracting an instrument hose connected to a dental instrument to store the dental instrument in a table. and a dental treatment unit.

A common treatment method for caries is to remove the carious portion, and the tooth is cut with a dental instrument. A dental instrument is connected to an instrument hose (hereinafter referred to as hose) of a predetermined length, and this hose is housed, for example, under a work table for dental treatment.

The operator grasps the dental instrument by hand and pulls out the hose (also called the operation of pulling out the hose). There are times when you want to keep using it. For this reason, for example, Patent Literature 1 proposes a technique capable of setting the length of the hose to be pulled out to a desired length.

Patent No. 5361606

By the way, for example, a plurality of dental instruments may be used to clean the inside of the worktable. Specifically, a plurality of hoses are pulled out from the worktable, and water in the worktable is discharged from the tip of each dental instrument. For this reason, it is then necessary to return all pulled hoses to the worktable.
However, in the technique described in Patent Document 1, each hose can be pulled out separately, so it is desired that all the hoses can be returned to the work table at the same time.

The present invention has been made in view of the above-mentioned circumstances, and is capable of responding to both cases in which each hose is individually returned to the work table and all hoses are returned to the work table at the same time. An object of the present invention is to provide an instrument hose withdrawal amount adjusting device and a dental treatment unit.

In order to solve the above-mentioned problems, the invention of claim 1 provides an instrument hose connected to each of a plurality of dental instruments housed in a table, and the dental instrument hose wound around the instrument hose . an instrument hose equipped with a pulley capable of moving by urging an instrument to be pulled back to the table, a brake capable of braking the position of the pulley, and a valve capable of supplying air to the brake In the pull-out amount adjusting device, the brake is actuated, the position of the pulley is locked, and the brake is stopped in response to the supply of the air to the predetermined flow path by opening and closing the valve. when the position of the pulley is in the unlocked state and the position of the pulley is in the locked state, outputting a drive signal to the valve corresponding to the pulled out predetermined dental instrument, The position of the pulley is set to the unlocked state to return only the single predetermined dental instrument to the table; The apparatus is characterized by comprising a control unit for outputting respective drive signals to bring the position of the pulley into the unlocked state and for controlling the operation of returning the plurality of dental instruments to the table at the same time. .

According to a second aspect of the invention, there is provided a dental treatment unit equipped with the instrument hose withdrawal amount adjusting device according to the first aspect of the invention, wherein the dental instrument desired to be returned to the table is selected on the table. A possible individual return switch is provided.

The invention of claim 3 is characterized in that, in the invention of claim 2, the individual return switch is provided in the vicinity of a holder for storing the dental instrument to be returned to the table.

The invention of claim 4 is the invention of claim 2 or 3, further comprising a foot controller arranged on the floor surface, wherein the foot controller simultaneously holds the plurality of dental instruments pulled out. It is characterized by the provision of a collective return switch for starting the action of returning to the table.

According to the present invention, it is possible to set the return operation of the pull-back adjustment unit, so that only one dental instrument can be returned to the table, or a plurality of dental instruments can be returned to the table at the same time. can also Therefore, it is possible to provide an instrument hose pull-out amount adjusting device that can be used in many situations.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view for explaining an embodiment of a dental treatment unit equipped with an instrument hose withdrawal amount adjusting device of the present invention; It is a perspective view of a work table. 4 is a functional block diagram of a worktable; FIG. It is a figure for demonstrating an individual return switch.

Hereinafter, an instrument hose withdrawal amount adjusting device and a dental treatment unit according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view for explaining an embodiment of a dental treatment unit equipped with an instrument hose withdrawal amount adjusting device of the present invention.
As shown in FIG. 1, the dental treatment unit includes, for example, a dental treatment chair 1, a spittoon 4, a work table 7, a foot controller 20, etc. The dental treatment chair 1 has a contour seat 2 above a base 3. A backrest and a headrest are provided on one end side of the contour seat 2, and a leg rest is provided on the other end side of the contour seat 2. - 特許庁

The spittoon 4 has an operating light 5, and an arm 6 is rotatably attached to a post of the operating light 5, for example. The foot controller 20 is installed on the floor near the backrest and connected to the spittoon 4 via a connection cable 21, for example. A batch return switch 22, which will be described later, is provided on the left side of the foot controller 20, for example. Although the foot controller 20 pulled out from the spittoon 4 has been described as an example, it may have a structure installed on the base 3 or a structure pulled out from the work table 7 . In addition to wired communication, it is also possible to connect by wireless communication using infrared rays or the like.

The work table 7 can be attached to the arm 6, and the upper surface of the work table 7 has a touch panel type operation unit 10 on the front side. A holder 8 capable of accommodating various dental instruments is installed below the operation unit 10 . A hose storage portion 9 is provided on the back side of the holder 8, and can store an instrument hose (hereinafter referred to as a hose) for supplying air, water, electricity, or the like to each dental instrument. Note that the work table 7 corresponds to the table of the present invention.

2 is a perspective view of the work table, FIG. 3 is a functional block diagram of the work table, and FIG. 4 is a diagram for explaining an individual return switch.
As shown in FIG. 2, the holder 8 has a U-shaped cross section, and is installed below the operation unit 10 with the U-shaped opening facing upward. This opening is covered from above by a front plate 8a, and in FIG. 2, a syringe 11 for cleaning the oral cavity, a straight-type handpiece 12, a contra-type handpiece 13, and a scaling handpiece 14 are accommodated. ing.

The syringe 11 is composed of a head portion to which a nozzle is attached and a grip portion to be gripped by the operator. Handpieces 12 to 14 are composed of a head portion to which a dental tool is attached and a grip portion to be gripped by the operator. A hose is connected to the rear end of each grip portion. In FIG. 2, the handpiece 14 for removing tartar and plaque (scaling) is pulled out, and the hose 14d is visible.

A bar 13a for cutting a tooth is attached to each head portion of the straight type handpiece 12 and the contra type handpiece 13. As shown in FIG. The burs have diamond or carbide tips and are configured in shapes for each purpose, such as removal or finishing. On the other hand, a tip 14a is attached to the head portion of a handpiece 14 for scaling. The chip is configured in a shape suitable for each purpose such as scaling and smoothing the tooth root surface after scaling (root planing). The straight type, contra type, and scaling handpieces 12 to 14 correspond to the dental instruments of the present invention.

For example, inside the work table 7, an instrument hose pull-out adjusting device of the present invention is mounted.
As shown in FIG. 3, the worktable 7 has a control section 60, an operation section 10, an individual return switch 30, an electromagnetic valve 40, and a braking device 50, which are connected via a bus.
The control unit 60 is composed of a CPU, a memory, etc., and can control the operation of the work table 7 by loading various programs and data stored in the memory, for example, the ROM, into the RAM and executing the various programs. .

The individual return switch 30 includes, for example, a straight switch 31, contra switches 32 and 33, and a scaling switch 34, and is provided on the front plate 8a of the holder 8. As shown in FIG. In this embodiment, an example in which the switches 31 to 34 are provided on the front panel 8a is described, but they may be provided on the touch panel of the operation unit 10, for example. It is also possible to provide a switch for the syringe.

As shown in FIG. 4, a front plate 8a of the holder 8 has, for example, five holes arranged in the horizontal direction. , 8e and scaling holes 8f are provided through the front plate 8a. The straight switch 31 is near the straight hole 8c, the contra switch 32 is near the contra hole 8d, the contra switch 33 is near the contra hole 8e, and the scaling switch 34 is near the scaling hole 8f. are provided respectively.

Each of the switches 31 to 34 is formed, for example, in a convex shape when viewed in cross section. there is As a result, each of the switches 31 to 34 moves toward the inner side of the holder 8 against the urging force of the spring while the convex central portion is pressed by, for example, a finger. It moves to the front side of the holder 8 by the biasing force.

The electromagnetic valve 40 and the brake device 50 are housed in the hose housing portion 9, for example. As shown in FIG. 3, the electromagnetic valve 40 includes, for example, a spool type straight valve 41, contra valves 42 and 43, and a scaling valve 44. As shown in FIG. The brake device 50 includes a straight brake 51, contra brakes 52 and 53, and a scaling brake 54, all of which have the same structure.

As an example, the straight handpiece 12 is described. The pulley is urged toward the inner side of the hose housing portion 9 by, for example, a spring (not shown). The straight brake 51 can brake the position of the pulley, and the straight valve 41 is configured to supply air to the straight brake 51 .

Therefore, for example, when the straightening valve 41 is open, air is supplied to a predetermined flow path and the straightening brake 51 is operated to lock the position of the pulley and connect it to the handpiece 12 . Hose length is maintained.
On the other hand, for example, when the valve 41 is closed, air is supplied to another flow path and air is not supplied to the predetermined flow path. As a result, the brake 51 is deactivated, the position of the pulley is unlocked, and the hose connected to the handpiece 12 is returned into the worktable 7 .

The control section 60 has a retraction adjusting section 61 . The retraction adjustment unit 61 outputs drive signals to the valves 41-44 based on the signals from the switches 31-34.
A signal from the batch return switch 22 of the foot controller 20 can be input to the work table 7, and the retraction adjustment unit 61 sends drive signals to the valves 41 to 44 based on the signal from the batch return switch 22. output at the same time. In this embodiment, an example in which the collective return switch 22 is provided on the foot controller 20 has been described, but it may be provided on the operation unit 10, for example, on a touch panel.

Then, the pull-back adjustment unit 61 pulls back only one dental instrument to the work table 7 or pulls back a plurality of dental instruments depending on whether the signal is from the switches 31 to 34 or the signal from the collective return switch 22 . It is possible to set the operation of pulling back a book (for example, four) of dental instruments to the work table 7 at the same time.

For example, when the operator wants to use the straight handpiece 12 , the operator holds the handpiece 12 and pulls it out from the work table 7 . After that, the operator plans to use the handpiece 14 for scaling, and it is assumed that the helper replaces the bar 13a of the straight handpiece 12 while using the handpiece 14 for scaling. .

When the helper has finished replacing the bar 13a of the handpiece 12, the straight handpiece 12 must be returned to the worktable 7. However, since the handpiece 14 for scaling is in use, only the straight handpiece 12 is returned to the worktable 7 . Therefore, for example, when the helper presses the straightening switch 31, the signal from this switch 31 is detected by the pullback adjustment section 61 while the switch 31 is being pressed, and the pullback adjustment section 61 closes the straightening valve 41. do.

When the straightening valve 41 is closed, air is not supplied to the predetermined flow path, but air is supplied to the other flow path. Only the connected hoses are pulled back into the worktable 7 .
On the other hand, for example, when the inside of the work table 7 is to be cleaned, the straight type handpiece 12, the contra type handpiece 13, and the scaling handpiece 14 are pulled out from the work table 7. FIG. Next, it is assumed that the work table 7 is drained of water through the handpieces 12-14.

After drying the inside of the work table 7, the handpieces 12 to 14 must be returned to the work table 7 quickly. Therefore, when the collective return switch 22 of the foot controller 20 is pressed, the signal from this switch 22 is detected by the pull-back adjustment section 61, and the pull-back adjustment section 61 adjusts the straight valve 41, the contra valves 42 and 43, and the scaling valve 44. to close.

When the straight valve 41, the contra valves 42 and 43, and the scaling valve 44 are closed, the straight brake 51, the contra brakes 52 and 53, and the scaling brake 54 are all stopped, and each handpiece is closed. Each hose connected to 12-14 is pulled back into the work table 7 at the same time.
Although the example of exchanging the bar 13a of the straight handpiece 12 while the handpiece 14 for scaling is being used has been described, if it is in an inactive state, the straight handpiece 12 as well as the contral The bar 13a of the mold handpiece 13 can also be replaced at the same time.

As described above, it is possible to set the return operation of the pull-back adjustment unit 61. Therefore, it is possible to return only the straight handpiece 12 to the work table 7 after replacing the bar 13a. The straight type, contra type, and scaling handpieces 12 to 14 can be returned to the work table 7 at the same time. Therefore, it is possible to provide an instrument hose pull-out amount adjusting device that can be used in many situations.

If the straight, contra, and scaling switches 31-34 are installed on the front plate 8a of the holder 8, the handpieces 12-14 to be returned to the work table 7 can be easily selected. Further, the straight switch 31 is provided in the vicinity of the straight handpiece 12, so that the handpiece 12-14 desired to be returned to the work table 7 can be reliably selected.
Furthermore, if the foot controller 20 is provided with a collective return switch 22, the straight type, contra type, and scaling handpieces 12 to 14 can be quickly returned to the work table 7. FIG.

In the above embodiments, an example of a spool type electromagnetic valve has been described, but the present invention is not necessarily limited to this example. For example, it may be a poppet type electromagnetic valve that closes a predetermined flow path when not energized and opens this flow path when energized.
Also, while the switch is pressed, the hose can be returned to the work table. However, if the switch is pressed once, the hose can be returned to the worktable, and if the switch is pressed again, the length of the hose can be maintained. Also, the brake device is not limited to an air-driven type, and a known configuration can be adopted.

REFERENCE SIGNS LIST 1 dental treatment chair 2 contour seat 3 base 4 spittoon 5 shadowless light 6 arm 7 work table 8 holder 8a front plate 8b syringe hole 8c... Straight hole 8d, 8e... Contra hole 8f... Scaling hole 9... Hose storage part 10... Operation part 11... Syringe 12, 13, 14... Handpiece 13a... Bar 14a... Chip 14d Hose 20 Foot controller 21 Connection cable 22 Collective return switch 30 Individual return switch 31 Straight switch 32, 33 Contra switch 34 Scaling switch 40 Electromagnetic valve 41 Straight valve 42, 43 Contra valve 44 Scaling valve 50 Brake device 51 Straight brake 52, 53 Contra brake 54 Scaling brake 60 control section 61 ... pullback adjustment section;

Claims (4)

an instrument hose connected to each of a plurality of dental instruments housed in a table ; and an instrument hose wound around the instrument hose to urge the dental instrument in the direction of pulling it back to the table. An instrument hose withdrawal amount adjustment device comprising a movable pulley, a brake capable of braking the position of the pulley, and a valve capable of supplying air to the brake ,
In response to the supply of air to a predetermined flow path by opening and closing the valve, the brake operates to lock the position of the pulley, and the brake stops operating to unlock the position of the pulley. become,
when the position of the pulley is in the locked state, outputting a drive signal to the valve corresponding to one of the pulled-out predetermined dental instruments to bring the position of the pulley into the unlocked state; Returning only the one predetermined dental instrument to the table, and outputting the drive signals to the valves corresponding to the plurality of pulled-out dental instruments, respectively, to move the pulley . An instrument hose pull-out amount adjusting device, comprising: a control unit for controlling a position to be in the unlocked state and an operation for returning the plurality of dental instruments to the table at the same time. A dental treatment unit equipped with the instrument hose withdrawal amount adjusting device according to claim 1,
A dental treatment unit, wherein the table is provided with an individual return switch for selecting the dental instrument to be returned to the table. A dental treatment unit equipped with the instrument hose withdrawal amount adjusting device according to claim 2,
A dental treatment unit, wherein the individual return switch is provided in the vicinity of a holder that houses the dental instrument to be returned to the table. A dental treatment unit equipped with the instrument hose withdrawal amount adjusting device according to any one of claims 1 to 3,
A foot controller is provided on the floor, and the foot controller is provided with a batch return switch for simultaneously starting to return the plurality of dental instruments that have been pulled out to the table. A dental treatment unit characterized by:

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