Supporting member

Abstract

To provide a support member capable of supporting an illumination unit and being easily fitted to and detached from a hook part.SOLUTION: A support member 1 of the invention comprises: a detachment part which can be detachably fitted to a hook 5 comprising a hook part 7 extending in a state of changing its direction to an almost right angle from a shaft-like handle part 8 coupled to a protrusion part 9 which is partially protruded in a width direction; and support parts 12, 23a, 23b which can support an illumination unit 40 for assisting surgical operation by an operating surgeon. The detachment part comprises: a fitting part 20 comprising fitting grooves 21, 22 whose one ends are opened and being fitted to the protrusion part 9; and an engagement part 10 comprising an engagement groove 11 whose one end is opened and being engaged to the handle part 8. The engagement part 10 and the fitting part 20 are coupled to a coupling member 30 having a protrusion part 31 contacting the handle part 8.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a support member capable of supporting various units such as lighting and capable of being easily attached to and detached from a surgical tool. [Background technology]

[0002] As shown in Patent Document 1, a conventional support member comprises a detachable part that can be attached to and detached from a muscle hook, which is an example of a surgical tool, and a unit attachment part that can support an optical fiber. The detachable part comprises claws arranged opposite each other and a biasing member that constantly biases the claws in a closing direction, and has a so-called clip-like shape. The unit attachment part comprises a movable part that can move the optical fiber in the up, down, left, and right directions, and an insertion hole through which the optical fiber can be inserted. The conventional support member configured in this way has the detachable part, and is characterized by being easily attached to and detached from the muscle hook. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 62-015311 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional support member has a problem that dirt during surgery easily gets into the gap between the insertion hole and the optical fiber, and into the small gap of the movable part that moves up, down, left and right. In addition, such dirt is washed after each operation from the viewpoint of infection prevention, but the conventional support member has a problem that the dirt gets into complicated places such as the movable part and the insertion hole, and the cleaning work to remove it takes time. Furthermore, the conventional support member has a problem that when adjusting the position of the optical fiber attached to it, the optical fiber is pulled out and pushed in from the movable part, making fine adjustment of the slight protrusion margin troublesome.

[0005] Furthermore, when the muscle hook is formed into an axial shape, the conventional support member holds the axis with two claws, but there is a risk of the claws rotating around the axis when an external force is applied to the claws. When such rotation of the support member occurs, the position of the tip of the optical fiber is also likely to change, making it difficult to stably irradiate the required light. In addition, in order to prevent such rotation of the support member around the axis, it is possible to increase the biasing force of the biasing member. However, if the biasing force of the biasing member is replaced with a stronger one, it becomes difficult for the surgeon to operate the claws in the direction of opening, and there is also a problem that it becomes difficult to attach and detach the muscle hook. [Means for solving the problem]

[0006] The present invention is a support member having a detachable part formed so as to be detachable from a muscle hook, the hook part being provided with a hook part that turns at a right angle and extends from a shaft-shaped handle part connected to a protruding part that protrudes partially in the width direction, and a support part capable of supporting an auxiliary unit for assisting a surgeon in surgery, the detachable part being composed of a fitting part having a fitting groove with an open end that fits into the protruding part, and an engagement part having an engagement groove with an open end that engages with the handle part, the engagement part and the fitting part being formed by connecting a protrusion that contacts the handle part to a connecting member. The protrusion is preferably formed integrally by bending the plate-shaped connecting member. The support part is preferably formed on the upper part of one of the engagement part or the fitting part, or on the upper parts of both the engagement part and the fitting part. Furthermore, the support part is preferably arranged at a plurality of locations so as not to support the auxiliary unit on the same straight line. Moreover, it is preferable that the support portion is a long hole-shaped support groove with one end open. Furthermore, it is preferable that the support portion is formed with a wavy inner surface that allows the auxiliary unit to be adjusted to a plurality of support positions. It is preferable that the opening direction of the support groove is set at a different angle from the opening direction of the other support grooves. Furthermore, it is preferable that the connecting member is offset so as not to block the opening of the engagement groove, and the support portion of the fitting portion is arranged close to the offset direction. Furthermore, the auxiliary unit may be a lighting unit having an irradiation means for irradiating light and a movable portion that is flexibly movable and shaped like a shaft and has the irradiation means at one end. Effect of the Invention

[0007] The support member according to the present invention has a protrusion on the connecting member that connects the engaging portion and the fitting portion, so that the handle portion contacts three points: the engaging portion, the protrusion, and the fitting portion. Moreover, when these three points are in contact with the handle portion, the connecting member is always bending, so the support member according to the present invention has the advantage that it is difficult to fall off the handle portion by clamping it. In addition, the support member according to the present invention has the advantage that it is easy to attach to the muscle hook, while having a simple configuration that utilizes a repulsive force that resists the bending of the connecting member. Furthermore, since the support member according to the present invention is formed by bending a plate-shaped connecting member to form a protrusion, there is no need to weld a separate member to the connecting member. Therefore, the protrusion can be integrally formed with the connecting member simply by bending the plate-shaped connecting member, so there is also the advantage that it can be finished inexpensively and lightweight. In addition, the support member according to the present invention has an advantage that the auxiliary unit can be attached above the handle, since the support part is disposed above either the engaging part or the fitting part, or above both the engaging part and the fitting part, and therefore the auxiliary unit can be attached above the handle, and the auxiliary unit can be easily attached and detached. Furthermore, the support member according to the present invention has support parts disposed at a plurality of locations so as not to support the auxiliary unit on the same straight line, so that even if an unsupported auxiliary unit is twisted and rotated, the rotational force is not easily transmitted. Therefore, the support member according to the present invention has an advantage that the auxiliary unit supported thereon can be stably supported, and when the auxiliary unit is configured as a lighting unit and its tip is disposed so as to extend to the tip of the hook, it is not easily swung like a pendulum. Furthermore, the support member according to the present invention has an advantage that the support part is an elongated support groove with one end open, so that the auxiliary unit can be easily inserted through the opening and easily attached and detached. Furthermore, the support member according to the present invention has an advantage that the inner surface of the support part is formed to be wavy, so that the attachment position of the auxiliary unit can be adjusted in stages. This has the advantage that, for example, if the auxiliary unit is a lighting unit and is positioned so as to extend near the tip of the hook, it can be adjusted to any position, such as the center or the right end of the tip of the hook, making it easy to handle.In addition, the support member according to the present invention has an opening direction set at a different angle from the opening direction of the other support grooves, so that even if the auxiliary unit is mistakenly pulled out in one direction, it is prevented from falling off by the support groove that does not open in the pulling direction. Furthermore, the support member according to the present invention is offset to one side so as not to block the opening of the engagement groove, and the support part of the fitting part is also offset, so that it is easy to attach and detach from the muscle hook even when supporting the auxiliary unit. This is because when the muscle hook is removed from the support member, the handle part moves in a direction away from the support part, and the support member plays a role in restricting the movement of the muscle hook toward the support part. In addition, the support member according to the present invention has an auxiliary unit as a flexibly movable lighting unit, so that the operating field of the surgeon can be kept bright by arranging an illumination means at the tip of the hook part. [Brief description of the drawings]

[0008] [Figure 1] 1A to 1D are schematic explanatory views showing a support member according to the present invention, in which (a) is a plan view, (b) is a front view, (c) is a perspective view seen from above, and (d) is a perspective view seen from below. [Diagram 2] 2A and 2B are schematic explanatory diagrams showing the use state of the support member of FIG. 1, in which (a) is a plan view, (b) is a rear view, (b) is an oblique view seen from diagonally rearward from the front, and (c) is an oblique view showing an example of a muscle hook for attaching the support member. [Diagram 3] 10A to 10D are schematic explanatory views showing another support member according to the present invention, in which (a) is a plan view, (b) is a front view, (c) is a right side view, and (d) is a perspective view seen from above. [Figure 4] 4A and 4B are schematic explanatory views showing a state in which another supporting member in FIG. 3 is used, in which (a) is a perspective view seen from above the front, and (b) is a perspective view seen from below the front. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The support member according to the present invention will be described with reference to Figs. 1 to 4. The support member 1 according to the present invention is configured to be detachable from a muscle hook 5, which is an example of a surgical tool often used when opening an incision shown in Fig. 2(d). The muscle hook 5 is composed of a gripping portion 6 held by a surgeon (not shown) and a hook portion 7 extending from the gripping portion 6 at a substantially right angle, and is made of a material such as stainless steel. The gripping portion 6 is integrally provided with a handle portion 8 connected to the hook portion 7 and extending in an axial direction, and a ring-shaped protruding portion 9 protruding in the width direction from the handle portion 8.

[0010] In addition, the support member 1 according to the present invention is configured to be able to attach a lighting unit 40, which is an example of an auxiliary unit that irradiates light, to the tip of the hook portion 7, as shown in Figs. 2(a) to 2(c) and 4(a) and (b). The lighting unit 40 comprises an irradiation means 41 that irradiates light, and a movable part 42 that is shaped like a shaft and has the irradiation means 41 at one end and is flexibly movable. The movable part 42 incorporates a transmission line (not shown) that can transmit power and light to the irradiation means 41, and a copper wire (not shown) that is arranged along the transmission line and does not bend only by the weight of the lighting unit 40, but can be easily bent by human force, and has a shape maintaining function that can be flexibly deformed by an external force and maintains an arbitrary shape even when the external force is removed. In this way, the lighting unit 40 with a shape maintaining function can be arranged along the muscle hook 5 that is bent at a right angle as shown in the figures.

[0011] The support member 1 according to the present invention is provided with a detachable part that is detachable from the grip part 6. The detachable part is composed of an engaging part 10 that engages with the handle part 6, a fitting part 20 that fits into the protruding part 9, and a connecting member 30 that connects the engaging part 10 and the fitting part 20 together.

[0012] The engagement portion 10 includes an engagement groove 11 into which the handle portion 6 can be inserted from below, and a support portion to which the movable portion 42 of the lighting unit 40 can be attached. As shown in Figures 2(b) and (c), the engagement groove 11 is configured to be able to guide the upper portion and both side surfaces of the handle portion 6 engaged therewith.

[0013] The fitting portion 20 is composed of two members as shown in Figs. 1(a), (b), (c) and Figs. 3(a) and (d), and is fixedly disposed on the rear end upper surface of a connecting member 30 described later. The two members are disposed at a predetermined interval so that the handle portion 8 can be inserted therethrough, and form fitting grooves 21 and 22 into which a ring-shaped protruding portion 9 can be inserted from the horizontal direction. As a result, the protruding portion 9 is restricted from slipping out in the up, down, left and right directions because a part of its outer shape fits into the fitting grooves 21 and 22 as shown in Figs. 2(a), (b) and 4(a), (b). Furthermore, a support portion is formed on the upper portion of one of the two members to which a movable portion 42 of a lighting unit 40 can be attached and supported.

[0014] As shown in Figures 1 and 2, the support portion of the engagement portion 10 is arranged above the engagement groove 11 and is configured as a support groove 12 shaped as a vertically elongated hole that opens from the upper surface of the engagement portion 10 toward the engagement groove 11.

[0015] As shown in Figures 1 and 2, the support portions of the fitting portion 20 are arranged in multiple locations above the fitting groove 21, and are configured as support grooves 23a, 23b shaped as elongated holes that open from the top surface of the fitting portion 20 toward the fitting groove 21.

[0016] The groove width of the support grooves 12, 23a, 23b is set according to the depth, with the opening being set wide enough to guide the movable part 42, the deeper from the opening being set narrower and slightly smaller in width than the diameter of the movable part 42, and the deeper from this point being set wider and wider so that the movable part 42 can be inserted. In other words, the support groove 12 has a narrow return portion so that the movable part 42 cannot be easily removed once it has been attached.

[0017] On the other hand, the support groove 12 of the engagement part of another form shown in Fig. 3 is formed in a horizontally long hole shape that opens from the right side of the engagement part 10 toward the upper side of the engagement groove 11 and extends obliquely upward. In addition, as shown in Fig. 3(c), the inner surface of this support groove 12 is formed to be continuously wavy, and the support position of the movable part 42 can be set arbitrarily. As a result, as shown in Fig. 4, the movable part 42 can be supported at the back side of the support groove 12 or at the opening side of the support groove 12, and the position of the irradiation means 41 can be arbitrarily disposed in the center or side of the hook part 7, which has the advantage that it can be easily changed to a position that does not interfere with the operation of the surgeon.

[0018] Also, the support grooves 23a, 23b of the engaging portion of another embodiment shown in FIG. 3 are formed as vertically long holes opening from above on the fitting portion 21 side, or horizontally long holes opening from the upper side surface.

[0019] Therefore, the support member 1 shown in Figure 3 supports the movable part 42 alternately horizontally and vertically with the support groove 12 (horizontal) of the engagement part 10 closest to the hook portion 7, the support groove 23a (vertical) of the next closest fitting part 20, and the farthest support groove 23b (horizontal). Therefore, even if the surgeon accidentally pulls the movable part 42 upward, the support grooves 12, 23b, which have inner surfaces at the top, prevent the movable part 42 from falling off.

[0020] The connecting member 30 is plate-shaped, and is formed by fixing the fitting portion 20 and the engagement portion 10, which are composed of the above-mentioned two parts, by a method such as welding, screwing, bonding, or integral molding. The connecting member 30 is also provided with a protruding portion 31 protruding upward near the middle thereof, and this protruding portion 31 is formed by bending so as to protrude upward toward the fixed engagement portion 10 and the fitting portion 20 side. As a result, when the support member 1 according to the present invention is attached to the muscle hook shown in FIG. 2, the lower portion of the gripping portion 6 is pressed upward by the protruding portion 31, while the upper portion of the gripping portion 6 is pressed downward by the engagement portion 10 and the fitting portion 20, and the attachment state to the muscle hook 5 can be stabilized by utilizing the warping of the connecting member 30.

[0021] Furthermore, the connecting member 30 is formed so that its tip is offset in the width direction, and is disposed offset so as not to block the engagement groove 11 of the engagement part 10 attached thereto from below. Therefore, as shown in Figures 2(b) and 4(b), the handle part 8 can be guided from below the engagement part 10 and set into the engagement groove 11.

[0022] Next, the operation of the support member 1 according to the present invention will be described. First, the surgeon inserts the handle portion 8 obliquely from above the connecting member 30 to below the engagement portion 10 in order to engage the muscle hook 5 with the engagement groove 11 of the support member 1 shown in Figs.

[0023] The handle portion 8, which was inserted at an angle, is returned to a horizontal position so as to align with the connecting member 30, but at this time, the protrusion portion 9 is pulled so as to be positioned at the rear side of the mating portion 20 so that it does not interfere with the upper part of the mating portion 20.

[0024] When the surgeon returns the handle portion 8 to a horizontal position so as to align with the connecting member 30 as described above, the phase of the protrusion 9 is aligned with the phase of the fitting grooves 21, 22, and the protrusion 9 is pushed forward to fit into the fitting grooves 21, 22.

[0025] 2(b), the gripping portion 6 comes into contact with multiple points of the support member 1, with the upper part of the tip side of the handle portion 8 contacting the engagement groove 11, the lower part of the rear end side of the handle portion 8 contacting the upper end of the protrusion 31, and the upper part of the overhanging portion 9 contacting the fitting grooves 21 and 22, and is clamped by the support member 1. At this time, a bending moment is generated in the connecting member 30 with the protrusion 31 contacting the handle portion 8 as a fulcrum. Once the support member 1 can be attached to the barb 5 in this way, the lighting unit 40 is attached to the support portion.

[0026] In this way, the action and effect will be described according to the procedure for attaching the lighting unit 40 to the support member 1 in the state where it is attached to the muscle hook 5. Note that after describing the action and effect of the support member 1 shown in Figs. 1 and 2, the action and effect of another form of support member 1 shown in Figs. 3 and 4 will be described in that order.

[0027] First, the action and effect of the support member 1 shown in Figures 1 and 2 will be described. In order to position the irradiation means 41 of the lighting unit 40 at the center of the hook portion 7 and at a position slightly protruding from the tip as shown in Figures 2(b) and (c), the surgeon bends the movable portion 42 90 degrees so as to follow the right-angle bend of the hook portion 7, and then positions it along the handle portion 8 and aligns it with the opening of the vertically elongated support groove 12.

[0028] Next, the surgeon presses the movable part 42 into the vertically long support groove 12 from above to mount it, and then presses the movable part 42 into the vertically long support groove 23a from above to mount it. At this time, the support groove 23a is not arranged on the same straight line as the support groove 12, as shown in FIG. 2(a) and other figures. As a result, the movable part 42 supported by the support groove 12 and the support groove 23a changes its posture by dividing into a part that extends horizontally along the handle part 8 and a part that extends gradually obliquely, with the support groove 12 as a boundary. Furthermore, the vertically long support groove 23b changes its direction by about 90 degrees with respect to the support groove 23a, and is not arranged on the same straight line as the support groove 12.

[0029] By not arranging the multiple support grooves 12, 23a, 23b on the same line in this manner, for example, even if the movable part 42 supported by these support grooves 12, 23a, 23b and positioned after the support groove 23b is rotated around an axis, this rotational force is canceled by the support grooves with different directions, and it is difficult for the irradiation part 41 located at the tip to swing along the hook part 7. Therefore, since the support member 1 according to the present invention arranges the support grooves 12, 23a, 23b so as not to be aligned on the same line, it is possible to prevent the irradiation part 41 from swinging like a pendulum, and there is an advantage that even if the surgeon accidentally touches the movable part 42 and rotates it, it is difficult for the irradiation part to change.

[0030] Next, the action and effect of the support member 1 in another form shown in Figures 3 and 4 will be described. In order to position the irradiation means 41 of the lighting unit 40 at the front center of the hook portion 7 as shown in Figures 4(a) and (b), the surgeon bends the movable portion 42 by 90 degrees so as to follow the right-angle bend of the hook portion 7, and then positions it along the handle portion 8 and aligns it with the opening of the support groove 12.

[0031] Next, the surgeon presses the movable part 42 from the side into the horizontally long support groove 12 to mount it. Similarly, the surgeon presses the movable part 42 from above the vertically long support groove 23a to mount it. As shown in FIG. 3(a), since the support groove 23a is not disposed on the same straight line as the horizontally long support groove 12, it is gradually tilted with respect to the handle portion 8 so as to be supported.

[0032] Moreover, the horizontally elongated support groove 23b is disposed at an angle of about 45 degrees with respect to the support groove 23a, and is not disposed on the same straight line as the above-mentioned support groove 12. For this reason, in the support member 1 of another form shown in Figures 3 and 4, the irradiation means 41 is unlikely to swing like a pendulum, similar to the support member 1 shown in Figures 1 and 2.

[0033] Furthermore, the support grooves 12, 23a, and 23b of the support member 1 shown in Figures 3 and 4 are set to have openings at different angles with respect to the opening directions of the respective support grooves, so that even if a force is applied to the movable part 42 by the surgeon touching an incorrectly attached lighting unit 40, the force can be received by the inner surface of any of the support grooves. Therefore, the support member 1 of another form shown in Figures 3 and 4 is less likely to cause the movable part 42 to fall off compared to the support member 1 shown in Figures 1 and 2, which opens in the same direction.

[0034] 3 and 4 has the advantage that the support member 1 can be easily attached and detached from the muscle hook 5 while the lighting unit 40 is attached to the support grooves 12, 23a, and 23b. This is because the connecting member 30 is offset so as not to block the opening of the engagement groove 11, and the support grooves 23a and 23b of the fitting portion 20 are positioned toward the offset direction of the connecting member 30.

[0035] The advantages of the offset arrangement of the connecting member 30 described above will be specifically described along with the procedure for removing the support member 1 from the barb 5. First, the protruding portion 9 is pulled backward to remove it from the fitting grooves 21, 22, and then the protruding portion 9 is pulled upward. Here, the gripping portion 6 tilts obliquely from the horizontal position relative to the support member 1, and the bending moment generated in the connecting member 30 is eliminated.

[0036] Furthermore, the gripping portion 6 in this tilted position is rotated about the engagement groove 11 as a fulcrum while remaining in this tilted state, and the handle portion 8 is pulled downward from the engagement groove 11. When the gripping portion 6 in this tilted state is rotated, the direction of rotation is away from the engagement grooves 23a, 23b, so the tilted and rotating handle portion 8 does not come into contact with the movable portion 42 in an intersecting manner. In this way, the support member 1 shown in Figures 3 and 4 has the advantage that, when removed from the muscle hook 5, it can be easily removed even if the lighting unit 40 remains attached to the support grooves 12, 23a, 23b.

[0037] The auxiliary unit only needs to include a movable part 42 having a shape maintaining function, and the irradiation means 41 may be replaced with a jetting means for jetting water or air according to the surgical procedure, or a suction means for sucking foreign matter from inside the body. The protrusion 31 is not limited to one formed by bending, and may be one in which an interference member that interferes with the handle 8 is fixedly disposed. [Explanation of symbols]

[0038] 1 … Support member 5 … Suji hook 7 … Hook section 8 … Handle 9 … Overhanging part 10 ... Engagement part 11 ... Engagement groove 12 … Support part 20 ... Fitting part 21,22 … Fitting groove 23a, 23b … Support part 30 ... Connecting member 31…Protrusion 40 … Auxiliary unit

Claims

1. A support member including: a detachable portion formed so as to be detachable from a muscle hook, the detachable portion being provided with a hook portion extending at a substantially right angle from a shaft-shaped handle portion connected to a protruding portion partially protruding in the width direction; and a support portion capable of supporting an auxiliary unit for assisting a surgeon in surgery, the detachable portion is composed of a fitting portion having a fitting groove with an open end that fits into the protruding portion, and an engagement portion having an engagement groove with an open end that engages with the handle portion, A support member, characterized in that the engaging portion and the fitting portion are connected to a connecting member having a protrusion that contacts the handle portion.

2. 2. The support member according to claim 1, wherein the protrusion is formed integrally with the plate-shaped connecting member by bending.

3. 3. The support member according to claim 1, wherein the support portion is formed on an upper portion of either the engaging portion or the fitting portion, or on an upper portion of both the engaging portion and the fitting portion.

4. 4. The support member according to claim 1, wherein the support portion is arranged at a plurality of positions so as not to support the auxiliary unit in the same straight line.

5. 5. The support member according to claim 1, wherein the support portion is a support groove having an elongated hole shape with one end open.

6. 6. The support member according to claim 1, wherein the support portion has an inner surface formed with a wavy shape that enables the auxiliary unit to be adjusted to a plurality of support positions.

7. 7. The support member according to claim 5, wherein the opening of the support groove is oriented at a different angle from the opening of the other support grooves.

8. The connecting member is disposed offset so as not to block an opening of the engagement groove, 8. The support member according to claim 1, wherein the support portion of the fitting portion is disposed in the offset direction.

9. The support member according to any one of claims 1 to 8, characterized in that the auxiliary unit is a lighting unit having an irradiation means for emitting light and a movable part having the irradiation means at one end and flexibly movable and molded into an axis shape.

Images