JPS6139453Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to a laser handpiece that is used primarily in surgery, dentistry, etc., to incise or cut the treatment area by irradiating the treatment area with laser light. It is.

Configuration of conventional example and its problems Figure 1 shows the configuration of a conventional laser handpiece. 1 is a laser beam generator that generates a laser beam, and 2 is an optical glass fiber in the laser beam generator 1. (hereinafter referred to as glass fiber) A joint into which the light receiving end of 3 is inserted, 4 a hose that covers the glass fiber 3, 5 a case in which the light emitting end of the glass fiber 3 and two lenses 6 are installed on the same optical axis. It is.

In the conventional example configured in this way, when the case 5 is moved along the treatment area and the laser beam generator 1 emits the laser beam, the laser beam is emitted from the light emitting end of the glass fiber 3 and is emitted by the lens 6. The focused laser beam is irradiated onto the treatment area, and the treatment area is incised or cut. however,
In order to emit the laser beam in the desired direction, case 5
Even though the whole body has to be tilted in that direction, if the treatment area is at the back or the back side, the case 5 will hit the periphery of the treatment area and direct the laser beam to the desired area. There was a drawback that it was not possible to irradiate from that direction.

Purpose of the invention The purpose of the present invention is to eliminate the drawbacks of the conventional example by attaching an angled head case to the tip of the grip case so as to be tilted and rotatable.

Structure of the invention The present invention consists of a holding member that holds the light-emitting end of an optical transmitter, which has a gripping case that is inclined with respect to the center line and protrudes from the tip, and an angular shape that has a converging means and a refracting means for laser light inside. The head case is composed of a head case, and a fastening means for holding the head case in a desired direction and fastening it to the tip of the grip case.

DESCRIPTION OF EMBODIMENTS FIG. 2 shows the configuration of an embodiment of the present invention, in which the same reference numerals as those in FIG. 1 indicate the same parts, and 7 indicates the light emitting end of the glass fiber 3. 9 is a holding pin protruding from the tip of the gripping case 7 in parallel with the fiber holder 8, and 10 is a right-angled holding case. An angled head case in which a hemispherical lens 11 having both the function of a prism and the function of a lens is installed on the center line of the tip refracting part; 12 is a stop hole into which a stop pin 9 is inserted;
Reference numeral 13 denotes a slider 14 that is movable in the direction of the center line and has an inclined surface at the front end and rear end, which is installed in the front end of the gripping case 7, and the slider 14
a locking ball 15 that is movable in the radial direction and comes into contact with the inclined surface at the tip end of the slider 14; and a parking ball 16 that is movable in the radial direction and comes into contact with the inclined surface at the rear end of the slider 14.
and a ring 18 which is rotatably rotatable in the circumferential direction at the tip of the gripping case 7 and has a hole 17 (see FIG. 3b) formed in the inner circumferential wall surface that comes into contact with the parking ball 16. This anchoring device 13 consists of
rotate the ring 18 in the circumferential direction to open the hole 17.
is positioned above the parking ball 16, the parking ball 16, slider 14, and locking ball 15 become movable, and the head case 10 and the gripping case 7
When the ring 18 is rotated in the circumferential direction and the inner circumferential wall surface of the ring 18 is positioned above the parking ball 16, the inner circumferential wall surface of the ring 18 allows the inner circumferential wall surface of the ring 18 to rotate toward the center. Pressed parking ball 1
6 is a locking ball 1 in the direction of the tip of the slider 14.
5 in the radial direction, the locking ball 15 is stopped at a position where it is engaged in a groove 19 recessed in the circumferential direction on the inner circumferential wall surface of the rear end of the head case 10, and the head case 10 is moved into the grip case 7. is attached to.

In this embodiment configured in this way, the fiber holder 8 is inserted into the head case 10, and
When the locking pin 9 is inserted into one of the locking holes 12 and the ring 18 is rotated in the circumferential direction, the locking ball 1
5 is engaged in the groove 19 and the light emitting end of the glass fiber 3 is located at the focal point of the hemispherical lens 11,
The head case 10 is connected to the grip case 7, for example, in the orientation shown in FIGS. 2a and 2b. Further, by inserting the stop pin 9 into the other stop hole 12, the head case 10 is connected to the grip case 7 in the direction shown in FIG. 2c.

FIG. 3 shows the structure of another embodiment of the present invention, in which the same reference numerals as those in FIG. These are multiple holes drilled at equal intervals in the circumferential direction.

In this embodiment configured in this way, when the fiber holder 8 is inserted into the head case 10 and the ring 18 is rotated in the circumferential direction with the head case 10 facing in a desired direction, the locking ball is rotated. 15
is inserted into any one of the holes 20, and with the light emitting end of the glass fiber 3 positioned at the focal point of the hemispherical lens 11, the head case 10 is oriented in a desired direction and engaged with the grip case 7. Also, when you want to change the direction of the head case 10, use the ring 18.
After rotating the locking ball 15 in the circumferential direction and placing the locking ball 15 in a movable state, the head case 10 is rotated in the circumferential direction about the fiber holder 8, and the ring 18 is rotated in the circumferential direction again. When the head case 10 is rotated in the opposite direction, the locking ball 15 is engaged with the other hole 20, and the head case 10 is oriented in a desired other direction and is engaged with the grip case.

FIG. 4 shows the configuration of still another embodiment of the present invention, in which the same reference numerals as those in FIG. 2 indicate the same parts, and 21 is a head case 10.
This cap nut 21 engages with a flange 22 protruding in the radial direction from the rear end, and the cap nut 21 is attached to the head case 10 so as to be movable and rotatable in the centerline direction.

In this embodiment configured as described above, when the fiber holder 8 is inserted into the head case 10 and the cap nut 21 is screwed onto the tip of the grip case 7 with the head case 10 oriented in a desired direction, the flange 22 is sandwiched between the grip case 7 and the cap nut 21, and with the light emitting end of the glass fiber 3 positioned at the focal point of the hemispherical lens 11, the head case 10 is oriented in a desired direction and attached to the grip case 7. It is attached. When you want to change the orientation of the head case 10, loosen the cap nut 21, orient the head case 10 in the desired direction, and then tighten the cap nut 21 again. It is attached to 7.

Effects of the invention As explained above, according to the invention, the optical axis of the laser beam is refracted at the tip of the angled head case, so even if the treatment area is at the back or the back side, etc. , there is an advantage that the laser beam can be irradiated onto a desired area from a desired direction by simply tilting the grip case to a certain extent. Furthermore, if the gripping case hits the periphery of the treatment area, changing the mounting direction of the head case prevents it from hitting the periphery of the treatment area, which has the advantage of making the surgery easier to perform.

[Brief explanation of drawings]

FIG. 1a is a configuration diagram of a conventional laser handpiece, FIG. 1b is a cross-sectional view of a conventional laser handpiece main body, FIG. 2a is a cross-sectional view of an embodiment of the present invention, and FIGS. 2b and c are FIG. 3A is a sectional view of another embodiment of the present invention; FIG. 3B is a perspective view of essential parts of another embodiment of the present invention; FIG. The figure is a sectional view of yet another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Laser beam generator, 3... Optical glass fiber, 7... Gripping case, 8... Fiber holder, 9... Stopping pin, 10... Head case, 11... Hemispherical lens, 12... Stopping hole. , 13
...Anchoring device, 19...Groove, 20...Hole, 21...
...Bukuro nut, 22...Flange.

Claims (1)

[Claims for Utility Model Registration] (1) A laser that cuts, incises, etc. the affected area by converging the laser light emitted from the light emitting end of the light transmitting body to a desired position using an optical member such as a lens or a reflector. The handpiece includes a gripping case having a light emitting end of the optical transmission body at its tip, and a gripping case that houses the optical member therein and is rotatable in a circumferential direction about the optical axis of the optical transmission body. 1. A laser handpiece comprising: an angled head case attached to the tip of the handpiece; and a locking means for fixing the head case facing in a desired direction to the tip of the grip case. (2) The light emitting end of the light transmitting body is installed at the tip of the gripping case so that the optical axis of the emitted laser light is inclined with respect to the center line. Laser handpiece described in scope item (1). (3) The laser handpiece according to claim 1, wherein the head case is rotatably engaged in stages in the circumferential direction by a click means. (4) The laser handpiece according to claim 1, wherein the head case is rotatably engaged in a continuous manner in the circumferential direction.