JP2002345842A - Operation equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation equipment in dentistry implant surgery capable of automatically increasing or decreasing the irrigation amount of water without having the user (operating specialist) regulate it by obtaining the results of the measurement in the speed of rotation and torque of a cutting bar (an operative instrument). SOLUTION: A handpiece 20 is utilized for operations by driving an installed operative instrument 60 by a built-in motor, and the operative instrument 60 can be freely attached or detached. The operative instrument 60 is used to spray cooling/rinsing water in an irrigation bottle 30 onto the site to be operated from an irrigation pump 50 by way of an irrigation tube 40 to cool the subject site. The speed of rotation or torque of the cutting bar 60 is detected by detecting the electric current to drive the motor within the handpiece 20 by a sensor unit 10A. The detected current is processed at an information treatment part 10B to obtain the information necessary to control the pump 50 by way of a pump control unit 10C. Thereby, the amount of cooling/rinsing water to spray on the site to be operated can be controlled correspondingly to the speed of rotation of the motor or torque.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical device, and more particularly to a surgical device suitable for use in dental implant surgery.

[0002]

2. Description of the Related Art In a dental implant operation, an implant is implanted under soft tissue of a missing tooth portion, and a denture is fixed thereon to maintain and stabilize the implant. (Handpiece) is used to rotate the surgical tool (cutting bar) to perform drilling and tapping for implant placement, but with a water injection pump to cool and clean the surgical site In order to succeed in the operation, it is necessary to prevent necrosis of the bones in the operation part. Therefore, the water supply pump supplies cooling water to the operation part.

[0003]

However, if the amount of cooling water is too large, it is difficult to see the operation part, and if the amount is too small, bone necrosis is caused. The amount of water injected has been readjusted. However, the adjustment is troublesome, and it is difficult to secure a safe water injection amount, and there is a problem that it is not possible to concentrate on the operation.

[0004] The present invention has been made in view of the above circumstances, and particularly, in dental implant surgery,
Automatic injection with the function of automatically increasing or decreasing the amount of water injection without measuring the user (operator) without measuring the rotation speed and torque of the cutting bar (surgical tool). The purpose of the present invention is to provide a dental implant operation device having a water volume adjusting function.

[0005]

According to a first aspect of the present invention, there is provided a handpiece in which a surgical tool is detachably mountable, and the mounted surgical tool is driven by a built-in motor to perform a surgical operation. A water injection pump for injecting cooling / washing water into a place operated by the tool, a detection unit for detecting a rotation speed or torque of the motor, and a rotation speed signal or torque signal of the motor detected by the detection unit. A pump control unit for controlling a pump, wherein an injection amount of cooling / wash water to be injected to the operation unit is controlled according to a rotation speed or a torque of the motor.

According to a second aspect of the present invention, in the first aspect of the present invention, the apparatus further comprises the pump, a drive control unit and a drive current detection unit for the motor, and a control unit for the pump, and the cooling and cleaning. A control box capable of detachably mounting a water injection bottle filled with water, the handpiece removably connectable to the control box, and a control box disposed between the water injection bottle and a tip of the handpiece. And a water injection tube for controlling the amount of the cooling / washing water fed by the water injection pump.

[0007] The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the water injection tube is disposable.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the pump is a tube pump (ironing pump) for squeezing the water injection tube.

In a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, there is provided a data table indicating an appropriate amount of water injection relative to the rotation speed or torque of the motor, and referring to the data table, The invention is characterized in that the tube pump is controlled in accordance with the rotation speed or torque of the motor to supply an appropriate amount of water injection.

A sixth aspect of the present invention is characterized in that, in the fifth aspect of the present invention, a signal for detecting the rotation speed or torque of the motor is a drive current of the motor.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the control box cancels a function of detecting a rotation speed or a torque of the motor to control a water supply amount of the pump. It has a release switch.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, a foot switch for controlling rotation of the motor and the pump is connected to the control box. .

[0013]

FIG. 1 is an overall perspective view of an essential part for explaining an embodiment of a surgical apparatus according to the present invention.
Reference numeral 0 denotes a control box, reference numeral 20 denotes a handpiece having a motor inside, reference numeral 30 denotes a water injection bottle containing cooling / washing water (physiological saline), and reference numeral 40 denotes water injection in the water injection bottle to the tip of the handpiece 20. A water injection tube (this water injection tube is disposable for each patient for hygiene reasons), 50 is a pump (not shown) for feeding water in the water injection bottle 30 through the water injection tube 40 to the tip of the handpiece 20. For example, an ironing pump = tube pump), 60 is a surgical tool (cutting bar) detachably attached to the tip of the handpiece 20 by a chuck mechanism or the like.
So, as mentioned above, in dental implant surgery,
Operations such as drilling and tapping for embedding the implant body by rotating the surgical tool (cutting bar) 60 are performed. At this time, cooling / washing water in the water injection bottle 30 is guided through the water injection tube 40, and the operation section is operated. To prevent bone necrosis.

The control box 10 includes a rotational speed setting / display unit 11 for a surgical tool (cutting bar) and a handpiece gear ratio (ratio between the rotational speed of the motor in the handpiece and the rotational speed of the cutting bar). 12, a motor (or cutting bar) torque setting / display unit 13, a water injection / pump operation setting display unit 14, a reverse rotation switch 15 for setting the motor to reverse rotation in order to reversely rotate the surgical tool (cutting bar) (once) Pushing it in reverse rotates it again and pushing it back to return it to normal rotation). Conventionally, these were manually adjusted to perform surgery. Reference numeral 70 denotes a foot controller, which starts and stops a pump and a motor, switches between normal rotation and reverse rotation, and the like.

According to the present invention, a surgical tool (cutting bar) or the surgical tool is rotated in the dental implant surgical apparatus as described above by supplying the cooling / washing water in the water injection bottle 30 to the operating section and spraying it. A function to automatically adjust according to the rotation speed or torque of the motor is added.Specifically, by detecting the drive current for driving the motor, the rotation speed or torque of the cutting bar is detected. The supply amount of the cooling / wash water is changed depending on the magnitude of the driving current.

FIG. 2 illustrates the cooling and cooling added by the present invention.
FIG. 10A is a schematic configuration diagram of a main part for describing a cleaning water supply amount adjusting function. Lead wire 2 to supply motor
1, 10B is an information processing unit, 10C is a pump control unit that controls the rotation of the pump 50, and the information processing unit 10B is, as shown in FIG. A driving current) and a data table indicating a relationship between the optimum water supply amount and the data table.
The pump controller 10C is controlled to supply a water injection amount according to the motor torque, and thereby, the rotation speed of the pump 50 is automatically controlled to optimally supply the rotation speed according to the rotation speed or the torque of the motor. .

The implant operation device according to the present invention can be used for other than implant operation.
In such a case, the cooling / washing water supply adjustment function as described above is not necessarily required, and in consideration of such a case, the cooling / washing water supply adjustment according to the present invention can be selectively used. In FIG. 1, in the water injection amount / pump operation setting display section 14, for example, A
When the UTO switch is released, a predetermined fixed amount of cooling / washing water is supplied as in the related art.

[0018]

As is clear from the above description, when the surgical apparatus according to the present invention is used for dental implant surgery, the optimal cooling / cleaning water can be automatically supplied to the operating section, and the operator can use it. There is no need to perform cumbersome water volume adjustment operations, a safe water injection amount can be secured, and the operator can concentrate on the operation.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an essential part for explaining an example of a surgical apparatus to which the present invention is applied.

FIG. 2 is a diagram illustrating an example of an automatic water supply amount adjusting unit according to the present invention.

FIG. 3 is a diagram illustrating an example of a data table indicating a relationship between a motor torque and an optimal water injection amount.

[Description of Signs] 10: Control box, 20: Handpiece, 3
0 ... water injection (cooling / washing water = physiological saline) bottle, 40 ...
Water injection tube, 50 ... water injection pump (tube pump),
60: surgical tool (cutting bar), 70: foot switch.

Claims (8)

[Claims] 1. A surgical tool is detachably mountable,
A handpiece for performing an operation by driving a mounted surgical tool with a built-in motor, a water injection pump for injecting cooling / wash water into a portion operated by the surgical tool, and detecting a rotation speed or torque of the motor. A detection unit, having a pump control unit that controls the pump by a rotation speed signal or torque signal of the motor detected by the detection unit,
A surgical apparatus, wherein an amount of cooling / washing water injected to the operating section is controlled according to a rotation speed or a torque of the motor. 2. A pump having a drive control unit and a drive current detection unit for the motor, a control unit for the pump, and a control unit for the pump. A control box, the handpiece detachably connectable to the control box, and the cooling / cooling pump which is disposed between the water injection bottle and the tip of the handpiece and is supplied by the water injection pump. The surgical apparatus according to claim 1, further comprising an irrigation tube for controlling an amount of irrigation water. 3. The surgical apparatus according to claim 1, wherein the water injection tube is disposable. 4. The surgical apparatus according to claim 1, wherein the pump is a tube pump (ironing pump) for squeezing the water injection tube. 5. A motor control device according to claim 1, further comprising: a data table indicating an appropriate amount of water injection relative to the rotation speed or torque of the motor, and referring to the data table to control the tube pump in accordance with the rotation speed or torque of the motor. The surgical apparatus according to any one of claims 1 to 4, wherein an appropriate amount of water is supplied. 6. The surgical apparatus according to claim 5, wherein a signal for detecting a rotation speed or a torque of the motor is a drive current of the motor. 7. The control box according to claim 1, wherein the control box has a release switch for detecting a rotation speed or a torque of the motor to release a function of controlling a water supply amount of the pump. A surgical device according to claim 1. 8. The surgical apparatus according to claim 1, wherein a foot switch for controlling rotation of the motor and the pump is connected to the control box.