JP4047080B2 - Laser therapy device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laser treatment apparatus having an articulated arm.
[0002]
[Prior art]
Conventionally, there is known a laser treatment apparatus that performs treatment by irradiating a treatment laser beam to a treatment site. For example, an apparatus using a carbon dioxide laser having a wavelength in the infrared region is used for plastic treatment for removing wrinkles, aza and the like of a patient.
In this type of apparatus, laser light emitted from a laser light source is guided by an articulated arm having a plurality of reflection mirrors inside, and the treatment site is irradiated with laser light from a handpiece attached to the tip of the arm. Yes. A reflection mirror is disposed at each joint portion of the multi-joint arm, and the light guide tubes are connected to each other so as to be rotatable by the joint portion. In order to handle accessories such as a handpiece attached to the tip of the multi-joint arm, the multi-joint arm itself is heavy, so it becomes heavy. In order to lightly handle the articulated arm, a torsion coil spring is provided at the attachment portion of the articulated arm so as to counteract the moment of gravity of the articulated arm so as to cancel the rotational moment due to the gravity of the articulated arm.
[0003]
[Problems to be solved by the invention]
However, for example, if an accessory such as a handpiece is replaced with one having a different weight, there is a problem that the balance of the weight with the torsion coil spring is lost and the operability is deteriorated. In particular, in a handpiece with a scanner that scans a laser beam on an irradiation surface, the handpiece itself is heavy because a galvanometer or the like is added, and a signal cable for transmitting a scanning signal, an affected part irradiated with a laser beam. Since a hose or the like for sucking the gas evaporated in the step is attached to the articulated arm, it becomes heavier, so that the balance of the weight is lost, the handling becomes heavy, and the operability is deteriorated.
[0004]
An object of the present invention is to provide a laser treatment apparatus with good handling operability of accessories such as handpieces in view of the above-described problems of the prior art.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is characterized by having the following configuration.
(1) A laser apparatus main body in which a laser light source is arranged, a first arm attached to the laser apparatus main body side and extending in a substantially horizontal direction, and a second arm rotatable about the axis of the first arm, and reflecting In the laser treatment apparatus, wherein the mirror includes a multi-joint arm having a plurality of arms arranged at each joint, and the treatment site is irradiated with laser light from a handpiece attached to the distal end side of the multi-joint arm. a torsion coil spring which is connected to the second arm while being disposed in the biasing from the second arm to the vanishing for rotation direction beat the rotational moment by the weight of up to handpiece acting around the axis of the first arm force The weight of the handpiece when the torsion coil spring with the handpiece attached to the tip of the articulated arm is replaced with a different one An adjustment mechanism for adjusting the rotational moment that changes in accordance with the weight, wherein a weight that can move in the axial direction of the second arm is arranged, or a weight with a different weight reaches the handpiece from the second arm. And an adjustment mechanism disposed so as to be interchangeable with the articulated arm .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic external view of a laser treatment apparatus for treating skin wrinkles and the like, and FIG. 2 is a principal view of the control system and optical system of the apparatus.
Reference numeral 1 denotes a laser treatment apparatus main body. The apparatus main body 1 houses a treatment laser light source 51, an aiming light source 52, a light guide optical system, and a control unit 50 for controlling each part of the apparatus. In the apparatus of the present embodiment, a CO2 laser light source that emits an infrared laser beam is used as the therapeutic laser light source 51, and a semiconductor laser that emits a red beam is used as the aiming light source 52. The light guide optical system disposed in the main body 1 includes a mirror 54 that reflects the treatment laser light from the laser light source 51, and a dichroic mirror 55 that coaxially arranges the treatment laser light and the aiming light from the aiming light source 52. The dichroic 55 reflects the treatment laser light and transmits the aiming light. Both the laser light source 51 and the aiming light source 52 emit parallel laser light.
[0007]
Reference numeral 2 denotes an articulated arm portion. The multi-joint arm unit 2 includes a support column 10, a weight balancing unit 4, a second arm 21 that serves as a light guide tube, a third arm 22, and joint units 11, 12, 13, and 14. The weight balancing unit 4 serves to cancel the rotational moment due to the gravity of the articulated arm unit 2 and the handpiece unit 3.
Reference numeral 3 denotes a scanning handpiece unit having a drive mirror for causing laser light to scan in the X and Y directions at the treatment site, and is attached to the joint portion 14 at the tip of the multi-joint arm portion 2.
6 is a cable for transmitting a signal for driving and controlling the mirror in the handpiece unit 3, 5 is a connector part for connecting the cable 6 to the apparatus body side, and 7 is various setting conditions such as laser irradiation conditions. A control panel 8 for inputting is a foot switch for transmitting a trigger signal.
[0008]
Mirrors 60a to 60g are respectively arranged inside the joint portions 11, 12, 13, and 14 of the multi-joint arm portion 2, and the treatment laser light and aiming light emitted from the laser device body 1 are supplied to the multi-joint arm portion 2. The light is guided to the handpiece unit 3 through the inside. In the handpiece unit 3, a condensing lens 61 that condenses the laser light that has passed through the multi-joint arm unit 2 at a predetermined distance and galvanometer mirrors 62a and 62b that scan the laser light within a predetermined range are attached. .
[0009]
The structure of the weight balance part 4 is shown in FIG. The weight balancing unit 4 incorporates a torsion coil spring 48 inside. The moment due to the spring force of the torsion coil spring 48 is set so as to balance the moment due to gravity of the multi-joint arm portion 2 and the handpiece unit having an average weight. The first arm 41, which is a horizontal light guide tube, has an L shape, is rotatably connected to a column 11 extending vertically from the apparatus main body 1, and incorporates a mirror 60a. Two bearings 42 are attached to the outer periphery of the first arm 41 by screwing a bearing retainer 44 with a spacer 43 interposed therebetween. Pipes 45 are attached to the outer circumferences of the two bearings 42 by screwing bearing holders 46. That is, the pipe 45 is rotatably connected to the first arm 41. The pipe 45 incorporates a mirror 60 b and is connected to the second arm 21. A cover 47 is attached to the first arm 41 with a screw 49 at a portion where the first arm 41 and the pipe 45 overlap. Further, a torsion coil spring 48 is disposed on the outer periphery of the pipe 45, and both ends of the torsion coil spring 48 are fitted and fixed in holes 45a provided in the pipe 45 and holes 47a provided in the cover 47, respectively. Due to the action of the torsion coil spring 48, the pipe 45 is urged to rotate by the first arm 41, and the moment between the moment of gravity of the articulated arm portion 2 and the handpiece unit 3 and the spring force of the spring 48 is reduced. Equilibrium is maintained.
[0010]
As shown in FIG. 4, a balance weight 23 having a sliding support base 24 made of resin and having a good sliding property is slidably attached to the second arm 21 of the articulated arm portion 2. A V-groove 21 a is carved on the outer peripheral surface of the second arm 21, and has a click function together with a plunger 25 attached to the female screw 23 a of the balance weight 23. By the movement of the balance weight 23, it is possible to adjust the balance due to the difference in weight of the articulated arm portion 2, the handpiece unit 3, the cable 6, and the like.
The position of the V groove 21a is set so that the position of the balance weight 23 is determined according to the weight of the handpiece to be used. Further, a shallow U groove 21b is engraved on the outer peripheral surface of the second arm 21 in accordance with the position of the V groove 21a, and a handpiece name 21c to be used is also engraved next to the U groove 21b.
[0011]
In the laser treatment apparatus having the above-described configuration, the balance adjustment operation of the articulated arm unit 2 will be briefly described.
The surgeon attaches the handpiece unit 3 to be used to the joint member at the tip of the articulated arm portion 2. Further, according to the handpiece unit 3 to be used, the balance weight 23 is moved so that the end of the balance weight 23 is aligned with the U groove 21b adjacent to the handpiece name 21c marked on the outer periphery of the second arm 21. Thereby, even if the weight of the handpiece unit 3 changes, the balance of moments of the handpiece unit 3 and the articulated arm portion 2 and the weight balance portion 4 can be adjusted, and the handpiece unit 3 can be moved with a light force. Can be manipulated freely.
[0012]
In the above embodiment, the balance weight 23 has only one weight, but the balance weight 23 may be replaced with another weight having a different weight to adjust the moment balance with the weight balancing portion 4. good. Moreover, the tolerance | permissible_range of the weight of the handpiece unit 3 can also be expanded by replacing the balance weight 23 with another weight with different weight, and moving it.
In the above embodiment, the balance weight 23 is provided on the second arm 21. However, the balance weight 23 may be provided on a place other than the second arm 21 (for example, the third arm 22).
[0013]
In the above-described embodiment, the weight balancing unit 4 is a mechanism that maintains a balance with the moment of gravity of the multi-joint arm unit 2 and the handpiece unit 3 by the spring force of the torsion coil spring 48. Spring etc. may be used. In addition, the weight balancing unit 4 is provided as a seesaw type mechanism by providing a balancing weight that balances with the articulated arm unit 2 provided on the opposite side of the articulated arm unit 2 with the attachment part of the articulated arm unit 2 as a support shaft. Also good.
[0014]
Moreover, in the said embodiment, although it was set as the mechanism which adjusts the balance with the weight balance part 4 by moving the balance weight 23, instead of moving the balance weight 23, each arm (the 2nd 2nd) The length of the arm 21 and the third arm 22) may be variable to adjust the balance with the weight balancing unit 4.
[0015]
【The invention's effect】
As described above, according to the present invention, it is possible to improve the handling operability of accessories such as a handpiece connected to the articulated arm.
[Brief description of the drawings]
FIG. 1 is a diagram showing an external appearance of an apparatus.
FIG. 2 is a diagram showing an outline of an optical system and a control system inside the apparatus.
FIG. 3 is a view showing a structure of a weight balancing portion.
FIG. 4 is a view showing a moving mechanism of a balance weight.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Articulated arm part 3 Handpiece unit 4 Weight balance part 11 Joint part 12 Joint part 13 Joint part 14 Joint part 21 2nd arm 21a V groove 21b U groove 21c Handpiece name 22 3rd arm 23 Balance weight 24 Slide support base 41 First arm 45 Pipe 48 Torsion coil spring

Claims (1)

A laser device main body in which a laser light source is disposed, a first arm attached to the laser device main body side and extending in a substantially horizontal direction, and a second arm rotatable about the axis of the first arm, and each of the reflection mirrors In a laser treatment apparatus that includes a multi-joint arm having a plurality of arms arranged at a joint, and irradiates a treatment site with laser light from a handpiece attached to the distal end side of the multi-joint arm, the laser treatment apparatus is disposed on the first arm. a Rutotomoni the second torsion coil spring connected to the arm, twisting with the biasing force to the extinction to the rotation direction beat the rotational moment by the weight of the second arm to the handpiece acting about the axis of said first arm when the coil spring and the hand piece attached to the tip end of the articulated arm has been replaced by one of different weight, depending on the weight of the handpiece A adjusting mechanism for adjusting the torque that varies, multi during the second or movable weight in the axial direction of the arm is located or weight of different weight, reaches the handpiece from the second arm And an adjustment mechanism that is replaceably disposed on the joint arm .

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