JP3538161B2 - Dental implant surgery device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental implant surgical apparatus, and more particularly, to a dental implant surgical operation, which is used when a cutting bar bites into a bone or when a screw-shaped implant body is removed. The present invention relates to a dental implant operation apparatus capable of automatically reducing the number of rotations at the time of reverse rotation to several tens of rotations per minute.

[0002]

2. Description of the Related Art In a dental implant operation, an implant is implanted under soft tissue of a missing tooth part, and a denture is fixed thereon to maintain and stabilize. (Handpiece) is used to rotate the cutting bar to perform drilling and tapping to insert the implant body. When the cutting bar bites into the bone, or when the screw-shaped implant body is When removing,
The cutting bar is reversely rotated.

[0003]

The rotation speed required for the reverse rotation is about several tens of rotations per minute, but normally, the normal rotation is used at several hundreds to several hundreds of rotations. However, since the same rotation speed is obtained, the user needs to set the rotation speed again, and the operation is troublesome, and the user cannot concentrate on the operation.

[0004] The present invention has been made in view of the above circumstances, and particularly, in a dental implant surgical apparatus having a function of rotating a cutting bar in a reverse direction (counterclockwise), the cutting bar is rotated in a reverse direction. A function to automatically set the rotation speed of the cutting bar to several tens of revolutions per minute to eliminate the risk of suddenly rotating the cutting bar in the reverse direction and causing excessive bone fracture This is done for the purpose of doing so.

[0005]

According to a first aspect of the present invention, a cutting bar is removably mountable, and the mounted cutting bar is driven by a built-in motor to insert an implant. In a dental implant surgical apparatus having a handpiece for opening and tapping and a reverse rotation means for reversely rotating the cutting bar by reversely rotating a motor in the handpiece, when the cutting bar is reversely rotated, the cutting is performed. It is characterized in that it has means for automatically setting the bar at several tens of revolutions per minute.

According to a second aspect of the present invention, in the first aspect of the invention, the function of setting the rotation speed of the cutting bar to several tens of revolutions per minute during the reverse rotation is invalidated, and the normal rotation speed (normal rotation speed and normal rotation speed (Same rotational speed).

[0007]

FIG. 1 is a perspective view of the entirety of a dental implant operation apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a control box, and reference numeral 20 denotes a hand having a motor inside. A piece, 30 is a water injection bottle containing cooling / washing water (physiological saline), and 40 is a water injection tube for guiding water injection in the water injection bottle to the tip of the handpiece 20 (this water injection tube is used for sanitary purposes). The dispenser 50 dispenses water in the water bottle 30 through the water tube 40.
A pump (for example, an ironing pump = a tube pump) for feeding to the distal end of the handpiece 0, and 60 is a cutting bar that is detachably attached to the distal end of the handpiece 20 by a chuck mechanism or the like. In implant surgery, the cutting bar 60 is rotated to perform drilling and tapping for embedding the implant body, but when the cutting bar bites into the bone or when the screw-shaped implant body is removed, Reverse the cutting bar. The rotation speed required for reverse rotation is about several tens of rotations per minute, but normally normal rotation is used at hundreds to thousands and hundreds of rotations, and even if switching to reverse rotation, the same rotation speed comes out, The user had to reset the rotation speed.

The control box 10 has a cutting bar rotation speed setting / display unit 11, a handpiece gear ratio (ratio of the rotation speed of the motor in the handpiece to the cutting bar rotation speed) / display unit 12, and a cutting bar. The display has a torque (rotation speed) setting / display unit 13, a water injection / pump operation setting display unit 14, a reverse rotation switch 15 for reversing the rotation of the cutting bar, and the like. Had gone. Reference numeral 70 denotes a foot controller, which starts and stops a pump and a motor (cutting bar), switches between normal rotation and reverse rotation, and the like.

In the conventional dental implant operating apparatus as described above, after the rotation direction of the motor is switched by the reverse rotation switch 15 of the control box or the reverse rotation switch of the foot controller 70, the rotation direction is set by the rotation speed setting switch 13. It was necessary to reset to the desired rotation speed, and the operation was troublesome.

The present invention has been made to solve the above-mentioned drawbacks of the conventional implant surgical apparatus. In the present invention, when the reverse switch of the foot switch 70 is pressed, the motor in the handpiece 20 is depressed. Are rotated in reverse, and the rotation speed of the motor is automatically set to several tens of revolutions per minute. Specifically, when the motor that rotates the cutting bar 60 is a DC motor, the polarity of the DC voltage applied to the motor is reversed (the rotation direction of the motor is reversed) and the applied voltage is reduced. (Reduce the rotation speed). In the case of a pulse motor, the application sequence of the pulses is changed (the rotation direction of the motor is reversed) and the number of pulses per time is reduced (the rotation speed is reduced).

However, since it is conceivable to use the automatic reverse rotation speed setting function in the same manner as in the prior art, a dedicated switch for canceling the automatic reverse rotation speed setting function is provided. After releasing the function and after a predetermined time or after turning off the power, under the predetermined conditions,
The original automatic reverse rotation speed decreasing function may be restored.

[0012]

As is apparent from the above description, according to the dental implant operation of the present invention, when the cutting bar bites into the bone or when the screw-shaped implant is removed, the cutting bar is rotated in the reverse direction. When the reverse rotation speed is automatically adjusted to the predetermined low rotation speed, the operator can concentrate on the operation.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a main part for explaining an example of a dental implant operation apparatus to which the present invention is applied.

[Explanation of symbols]

10: control box, 15: reverse rotation switch,
Reference numeral 20: handpiece, 30: water injection (cooling / washing water = physiological saline) bottle, 40: water injection tube, 50: water injection pump (tube pump), 60: surgical tool (cutting bar), 7
0 ... foot switch.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61C 1/08 A61C 3/02 A61C 8/00

Claims (2)

(57) [Claims] 1. A handpiece which is detachably mountable with a cutting bar, and drives the mounted cutting bar by a built-in motor to perform drilling and tapping for implanting an implant body, and a handpiece. In a dental implant surgical device having reverse rotation means for reversely rotating the cutting bar by rotating a motor in a piece, when the cutting bar is reversely rotated, the cutting bar rotates several tens of minutes per minute. A dental implant operation device, comprising means for automatically setting. 2. The method according to claim 1, further comprising disabling a function of setting the rotation speed of the cutting bar to several tens of rotations per minute at the time of the reverse rotation, and setting a normal rotation speed (the same rotation speed as the normal rotation). The dental implant surgical device according to claim 1, wherein