KR20140030758A - Jointed arm with guiding light projecting unit - Google Patents

Abstract

Disclosed is a jointed arm equipped with a guiding light projecting unit which projects guiding light so that guiding light is correctly irradiated to a spot in which work is to be done. The disclosed jointed arm comprises: a plurality of rods connected continuously by at least one rod connection joint; handpieces connecting with one of the rods by at least one handpiece connection joint; at least one rod connection joint; at least one handpiece connection joint; and a light projection unit bonded to one of the handpieces and projecting guiding light to be irradiated to the working spot where the handpiece is used. The guiding light projection unit comprises: a light source projecting guiding light; a light source bracket to which the light source is inserted; and a light source bracket supporting member adhering to and supporting the light source bracket. The jointed arm is formed so that the light source bracket slightly tilts to the light source bracket supporting member and the direction of light projection is thereby slightly adjusted.

Description

[0001] Jointed arm with guiding light projecting unit [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jointed arm that steerably supports a device such as a medical handpiece and more particularly to a jointed arm that projects a guiding light And a joint arm having the light projection unit.

The articulated arm has a column fixedly supported on a support such as a desk and a plurality of rods pivotally connected to the column by a joint so as to be rotatable up and down and left and right. Or a handpiece for dental treatment. Among the handpieces, especially in the case of laser treatment handpieces, since most of the laser used for treatment is colorless, it is difficult to know at which point the laser is irradiated and at which point the laser is irradiated. On the other hand, The side effects and damages are very large. Therefore, the articulation arm is provided with an eye-surface light projection unit for accurately guiding the work point to the articulated arm.

However, in the articulated arm having the conventional interior light projection unit, the working light source for projecting the working light and the interior light source for projecting the interior light are arranged adjacent to each other, and both light sources are spaced apart from the working point. As a result, the optical path becomes long and complicated, and the two types of light projected from the two light sources proceed along parallel paths of light, causing an error between the point where the working light is irradiated and the point where the interior light is irradiated there was.

The present invention provides a joint arm having an inner light projection unit which is disposed far away from a light source projecting working light and whose light path can be superimposed on an optical path of working light do.

The present invention also provides a joint arm having an eye-surface light projection unit provided with means for fine-tuning the optical path of the eye light.

The present invention, at least one load connected to the joint (joint) handpiece (handpiece) connected by a plurality of loads, the at least one handpiece connected to the joints and one of the plurality of load after another, connected by, the group at least one rod An interior light projection unit coupled to the connection joint, the at least one handpiece connection joint, and one of the handpieces, the interior light projection unit projecting the interior light to be illuminated at a work point using the handpiece, And a working light projecting unit for projecting work light so that working light is irradiated so that the traveling path of the working light passes through another rod connected to the rod connected to the handpiece, A light source bracket fixing the light source, a light source bracket coupled to the light source bracket, And a beam combiner for reflecting the working light and transmitting the inside light so as to overlap the traveling path of the working light and the interior light, wherein the light source bracket is disposed on the light source bracket supporting member To adjust the light projection direction of the light source by adjusting an inclined angle with respect to the light source.

The light source includes a laser diode (LD) for projecting a visible laser. The light source bracket includes a central tube portion through which the LD is inserted and fixed, and a disk portion extending in the radial direction from the tube portion .

Wherein the light source bracket is coupled to the light source bracket supporting member by a plurality of engaging bolts passing through the disc portion and penetrating the inside of the light source bracket supporting member and rotates while being in contact with the light source bracket supporting member, And adjust the inclination angle with respect to the light source bracket supporting member by a plurality of possible adjustment bolts.

The plurality of adjustment bolts may be disposed at three circumferentially spaced intervals on the outer periphery of the disk unit.

The articulated arm may further include a light source support member and a cap. A light source support member is disposed to surround the light source and guides a connection cable from the light source. In this case, the light source support member may have a groove for the disc portion to cover the entire disc portion, and a connection channel groove of the connection cable may be disposed.

In this case, the connection cable may be a simple cable or a flexible printed circuit board (FPCB).

The cap is coupled to the light source bracket support member such that the light source is not exposed.

Both the interior light and the working light are laser, and they can be distinguished from each other by a wavelength difference.

According to the articulated arm of the present invention, by disposing the inner light projection unit adjacent to the end of the rod relatively relatively close to the handpiece, the number of refraction of the progress path due to mirror reflection is reduced, It can be investigated with a high level of accuracy. Further, the articulated arm of the present invention is provided with means for finely adjusting the path of the light of the eye, so that the eye light can be irradiated more accurately to the work point using the handpiece.

Further, according to the articulated arm of the present invention, the light source projecting the interior light is arranged far away from the light source projecting the working light, and the light path of the interior light and the light path of the working light overlap by the beam combiner So that it is possible to exactly match the irradiation point of the inside light and the working light.

1 is a perspective view of an articulated arm according to an embodiment of the present invention.
FIG. 2 and FIG. 3 are exploded perspective views showing the interior light projection unit provided in the articulated arm of FIG. 1 viewed from above and below.
Fig. 4 is a cross-sectional view cut along the line IV-IV of Fig. 3. Fig.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a joint arm having an eye-surface light projection unit according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terminology used herein is a term used to properly express the preferred embodiment of the present invention, which may vary depending on the intention of the user or operator or the custom of the field to which the present invention belongs. Therefore, the definitions of the terms should be made based on the contents throughout the specification.

1 is a perspective view of an articulated arm according to an embodiment of the present invention. Referring to FIG. 1, an articulated arm 10 according to an embodiment of the present invention is used to support a laser treatment handpiece 53. The articulated arm 10 has a column 11 fixed to a desk (not shown) or the like. The column 11 extends in a vertical direction, and a first joint 13 is coupled to the upper end thereof. The joint arm (10) has a first rod (25) which is vertically rotatable with respect to the first joint (13). Specifically, the second joint 23 is rotatably connected to the first joint 13 and the one end of the first rod 25 is connected to the second joint 23, And the other end is rotatable in the up and down direction.

A first stopper 15 is provided between the first joint 13 and the second joint 23 for limiting the range in which the other end of the first rod 25 is rotated downward. And a second stopper 17 for limiting the range in which the side end is turned upward is coupled and supported. The first and second stoppers 15 and 17 can prevent the breakage or damage of the articulated arm 10 due to excessive rotation of the first rod 25 during or after the operation using the hand piece 53 .

A third joint 31 and a fourth joint 34 are sequentially coupled to the other end of the first rod 25 and one end of the second rod 40 is coupled to the fourth joint 34. The fifth, sixth, and seventh joints 44, 47, and 50 are sequentially coupled to the other end of the second rod 40, and the handpiece 53 is coupled to the seventh joint 50. The column 11, the first and second rods 25 and 40 and the hand piece 53 are connected to the hand piece 53 by a plurality of joints 13, 23, 31, 34, 44, 47 and 50, So as to freely rotate in various directions.

Since the first rod 25 and the second rod 40 are connected via the third joint 31 and the fourth joint 34, the third joint 31 and the fourth joint 34 It is called a load joint. Also, since the second rod 40 and the handpiece 53 are connected via the fifth, sixth, and seventh joints 44, 47, and 50, the fifth, sixth, and seventh joints 44, 47, and 50 are referred to as handpiece connection joints. The second rod 40 is referred to as a rod connected to the handpiece 53 by the handpiece connection joints 44, 47 and 50 and the first rod 25 is a rod connected to the handpiece 53. [ (40). ≪ / RTI >

The articulated arm 10 includes joints 31, 34, 44, 47, and 50 coupled to the other end of the first rod 25, a second rod 40, Balancing weight 20 is provided to maintain weight and balance. The balancing weight assembly 20 includes a rod extension member 27 fastened to the one end of the first rod 25 and extending in a direction opposite to the other end of the first rod 20 .

The articulated arm 10 has a working light projection unit 12 disposed inside the column 11 and an interior light projection unit 60 disposed adjacent to one end of the second rod 40. The working light projection unit 12 is provided with a light source (not shown) for projecting a treatment laser used, for example, to remove dirt, dots, etc. of the skin. The working laser L1 projected from the light source of the working light projection unit 12 is guided to the inside of the column 11, the first joint 13, the first and second stoppers 15 and 17, the rod extension member 27, The second joint 23, the first rod 25, the third and fourth joints 31 and 34, the second rod 40, the fifth to seventh joints 44, 47 and 50, (53) sequentially to the front end of the handpiece (53) and irradiated to the work point.

The travel path of the working light L1 is refracted via the joints 13, 23, 31, 34, 44, 47, 50 (see P1 to P7). This is because a mirror is installed inside each of the joints 13, 23, 31, 44, 47, and 50 to totally reflect the working light L1 though it is not shown. A beam combiner 111 is installed in the interior light projection unit 60 in contact with the fourth joint 34 instead of the mirror. The beam combiner 111 acts as a mirror for the working light L1. That is, the beam combiner 111 totally reflects the working light L1 incident on the front surface 112 (see FIG. 3), which is the reflecting surface, to refract the traveling path.

The interior light projection unit 60 has a light source 73 (see FIGS. 2 and 3) for projecting a visible laser, for example, a red laser, as an interior light. The inner laser L2 is distinguished from the working laser L1 by the wavelength difference. The eye-interior laser L2 projected from the eye-inside light projection unit 60 is guided by a traveling path passing through the second rod 40, the fifth to seventh joints 44, 47, 50 and the handpiece 53 in order, To the front end of the handpiece 53 and irradiated to the work point.

The traveling path of the interior light L2 overlaps the traveling path of the working light L1 after the second rod 40. [ Specifically, the light L2 is incident on the back surface of the beam combiner 111, not the reflecting surface, passes through the beam combiner 111, and passes through the front surface 112 of the beam combiner 111 (See FIG. 3), and proceeds along the same path as the working light L1. Accordingly, there is no error between the working point where the working light L1 is irradiated and the point where the inner light L2 is irradiated, and the eye light L2 can be accurately irradiated to the working point.

FIGS. 2 and 3 are exploded perspective views of the guide light projection unit provided in the articulated arm of FIG. 1 viewed from above and below, and FIG. 4 is a sectional view cut along the line IV-IV of FIG. 2 and 3, the inner light projection unit 60 is fastened to the fourth joint 34 and includes a cap 61, a light source 73, a light source support member 68, A bracket 80, a light source bracket support member 95, a beam combiner 111, and a beam combiner support member 105.

The light source 73 includes a laser diode 76 for projecting a visible laser and a circuit board 74 on which the LD 76 is mounted and supplies power to the LD. The LD 76 is in the form of a small cylinder and protrudes toward the light source bracket 80. The light source 73 is coupled to and supported by the light source support member 68 by seating the circuit board 74 of the light source 73 in the seating groove 69 formed at the center of the light source support member 68. The light source support member 68 is seated in the seating groove 64 formed in the inside of the cap 61 and passes through the bolt hole 70 of the light source support member 68 and is inserted into the bolt hole 65 of the cap 61 And is fixed to the inside of the cap 61 by a pair of fastening bolts 71 to be inserted.

The light source bracket 80 is fitted with a light source 73. Specifically, the light source bracket 80 has a tube portion 86 at the center where the LD 76 is inserted and fixed, and a disk portion 81 extending in the radial direction from the tube portion 86. The light source bracket 80 is coupled to and supported by the light source bracket supporting member 95. Specifically, the light source bracket supporting member 95 is provided with a seating groove 100 having a flat bottom surface 101, which is recessed to receive the light source bracket 80. An opening 96 is formed at the center of the seating groove 100 to allow the tube portion 86 of the light source bracket 80 to be inserted.

2 to 4, the light source bracket 80 is connected to the light source bracket supporting member 95 by three first adjustment bolts 90 fastened to the bottom surface 101 of the mounting groove 100, do. Specifically, the three first adjusting bolts 90 penetrate three first adjusting bolt holes 82 arranged at regular intervals on the outer periphery of the disk portion 81, And is inserted into the bolt fastening hole 98. Since the first adjusting bolt 90 is screwed to the bolt fastening hole 98, the first adjusting bolt 90 can be raised or lowered with respect to the light source bracket supporting member 95 by clockwise or counterclockwise rotation, The periphery of the first adjusting bolt through-hole 82 of the disk portion 81 ascends and descends along the lifting and lowering of the first adjusting bolt 90. Accordingly, the three first adjustment bolts 90 can be individually rotated in a clockwise or counterclockwise direction by a predetermined angle to adjust and adjust the position and tilt angle of the light source bracket 80, It is possible to adjust the projection direction of the inner light L2 emitted by the LD 76 inserted and fixed in the tube portion 86. [

On the other hand, the clockwise or counterclockwise rotation of the three first adjustment bolts 90 causes the position and tilt angle of the light source bracket 80 to be relatively large on a large scale, The guide light projection unit 60 further includes means for adjusting the position and tilt angle of the light source bracket 80 finely on a smaller scale. Specifically, three second adjusting bolts 92 are disposed at equal intervals on the outer periphery of the disc portion 81, one between the adjacent pair of first adjusting bolts 90, on the disc portion 81 . The three second adjusting bolts 92 penetrate through the second adjusting bolt through hole 83 formed in the disc portion 81 and come close to the bottom surface 101 so that the bolt 92 Is not inserted into the light source bracket supporting member 85 which can only be brought into contact with the bottom surface 101 because there is no fastening hole for receiving the light source bracket. After the position and tilt angle of the light source bracket 80 are adjusted by the three first adjustment bolts 90, at least one second adjustment bolt 92 of the three second adjustment bolts 92 The second adjusting bolt hole 83 screwed to the first adjusting bolt 92 after the distal end of the second adjusting bolt 92 is brought into contact with the bottom surface 101 is rotated, And the peripheral portion of the disc portion 81 rises within the elastic limit range of the disc portion 81. Therefore, after the first adjustment by the rotation of the three first adjustment bolts 90, the second adjustment bolts 92 are rotated at an appropriate angle in the second order so that the light source bracket 95 for the light source bracket supporting member 95 The position and tilting angle of the movable member 80 can be precisely and finely adjusted. This makes it possible to more finely and finely adjust the projection direction of the eyeglass light L2 emitted by the LD 76 inserted and fixed to the tube portion 86 of the light source bracket 80. [

Referring again to FIGS. 2 and 3, as long as it passes through a pair of bolt holes 62 formed in the cap 61 and is fastened to a pair of bolt holes 99 formed in the side wall of the light source bracket supporting member 95 The cap 61 is coupled to the light source bracket supporting member 95 by the pair of fastening bolts 67 so that the light source 73 and the light source bracket 95 are not exposed to the outside.

On the other hand, the upper end of the beam combiner supporting member 105 is coupled to the bracket supporting member 95 by a pair of coupling bolts 103. The disk 81 of the light source bracket 80 is provided with a pair of escape holes 85 for preventing the head of the engaging bolt 103 from coming into contact with each other. The lower end of the beam combiner support member 105 is coupled to the fourth joint 34. The lower end of the beam combiner support member 105 has an inclined outer circumferential surface 108 inclined at the same angle to be engaged with the fourth joint 34 incised at an angle of 45 °, And has an annular projection 109. The beam combiner 111 is fitted inside the annular protrusion 109 such that the front surface 112 is exposed downward and the rear surface is directed toward the inclined outer circumferential surface 108.

When the beam combiner supporting member 105 in which the beam combiner 111 is fitted is engaged with the fourth joint 34 and the working light L1 is projected from the working light projection unit 12 (see FIG. 1) The working light L1 is reflected on the front surface 112 of the beam combiner 111 and proceeds to the second rod 40. [ 1) is projected from the light source 73 of the inner light projection unit 60 so that the inner light L2 passes through the opening 96 of the light source bracket supporting member 95, And the beam combiner 111 through the opening 106 of the beam combiner support member 105 and proceeds to the second rod 40 through the beam combiner 111. Thus, the path of the working light L1 and the path of the interior light L2 are superimposed.

1 to 4, only the articulated arm 10 coupled to the fourth joint 34 has been described, but the articulated arm of the present invention is not limited thereto. For example, the eye-inside light projection unit 60 may be coupled to any one of the first to seventh joints 13, 23, 31, 34, 44, 47, 50, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10: joint arm 11: pillar
12: working light projection unit 15, 17: stopper
20: Balancing weight 25, 40: First and second loads
53: handpiece 60: inner light projection unit
61: cap 73: light source
80: light source bracket 111: beam combiner

Claims (6)

A plurality of rods connected in series by at least one rod joint;
A handpiece connected by one of the plurality of rods to at least one handpiece connection joint;
An interior light projection unit coupled to one of the at least one load connection joint, the at least one handpiece connection joint, and the handpiece, the interior light projection unit projecting the interior light to be illuminated at a work point using the handpiece; And
And a work light projection unit for projecting work light so that work light is irradiated on the work point, the work light passing through the other rod connected to the rod connected to the handpiece,
The interior light projection unit may include:
A light source for projecting the interior light;
A light source bracket for fixing the light source;
A light source bracket supporting member to which the light source bracket is coupled and supported; And
And a beam combiner which reflects the working light and transmits the inside light to overlap the traveling path of the working light and the inside light,
Wherein the light source bracket is configured to adjust an inclined angle of the light source bracket with respect to the light source bracket supporting member to adjust a light projection direction of the light source. The method according to claim 1,
Wherein the light source bracket has a central tube portion into which the light source is inserted and fixed and a disk portion extending in the radial direction from the tube portion,
A large scale of the position and the tilt angle of the light source bracket with respect to the light source bracket support member by a plurality of first adjustment bolts penetrating the disk portion and being able to be lifted and lowered relative to the light source bracket support member. Is adjusted to
The position and inclination angle of the light source bracket with respect to the light source bracket support member are reduced to a relatively small scale by a plurality of second adjustment bolts which are rotatable while penetrating the disk portion and in contact with the light source bracket support member. Articulated arm, adapted to be adjusted. The method of claim 2,
The plurality of first adjustment bolts are screwed into the bolt fastening through holes of the light source bracket support member, so that the disk portion is moved up and down in the same direction as the first adjustment bolts by rotating the plurality of first adjustment bolts.
Wherein the second adjusting bolt and the disc portion are threadedly coupled to each other so that the disc portion is raised and lowered as the disc is rotated in contact with the light source bracket supporting member without ascending or descending. The method of claim 2,
Wherein the plurality of first adjusting bolts are arranged at equal angular intervals on the outer periphery of the disk portion, and the plurality of second adjusting bolts are arranged one by one between the adjacent pair of the first adjusting bolts, Are arranged at equal angular intervals. The method according to claim 1,
A light source supporting member for supporting the light source from above and guiding a connection cable from the light source; And
And a cap coupled to the light source bracket supporting member such that the light source support member is fixed and the light source is not exposed. The method according to claim 1,
Wherein both the eye light and the working light are laser, and are distinguished from each other by a wavelength difference.

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