JP2022182372A - support member - Google Patents

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 The present invention relates to a support member that can support various units such as lighting and that can be easily attached to and detached from a surgical instrument.

A conventional support member, as shown in Patent Document 1, includes an attachment/detachment portion that can be attached to and detached from a muscle hook, which is an example of a surgical tool, and a unit attachment portion that can support an optical fiber. The attachable/detachable portion includes claws arranged to face each other and an urging member that always urges the claws in a closing direction, and has a form like a so-called clip. Further, the unit mounting portion includes a movable portion capable of moving the optical fiber vertically and horizontally, and an insertion hole through which the optical fiber can be inserted. The conventional supporting member configured in this way has the feature that it can be easily attached to and detached from the hook because it has the detachable portion.

Japanese Utility Model Laid-Open No. 62-015311

However, the conventional supporting member has a problem that dirt during surgery tends to enter the gap between the insertion hole and the optical fiber and the small gap of the movable portion that moves up, down, left, and right. In addition, such dirt is washed after each operation from the viewpoint of infectious diseases, but since dirt enters into complicated places such as movable parts and insertion holes in conventional support members, washing to remove it is necessary. There was also the problem that the work required time. Furthermore, the conventional support member has a problem that, when adjusting the position of the optical fiber attached thereto, it is troublesome to finely adjust the projection by pulling out or pushing the optical fiber from the movable portion.

Furthermore, when the hook is formed in the shape of a shaft, the conventional support member holds the shaft between two claws, but there is a risk that the claw will rotate around the shaft 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 tends to change, and there is also the problem that it is difficult to stably irradiate the necessary light. In order to prevent such rotation of the supporting member about the axis, it is conceivable to increase the biasing force of the biasing member. However, if the urging force of the urging member is replaced with one having a high urging force, it becomes difficult for a surgeon or the like to operate in the direction in which the nail is opened, and attachment and detachment to and from the muscle hook becomes difficult.

The detachable part of the present invention is formed so as to be attachable to and detachable from a muscle hook, comprising a hook part extending from a shaft-shaped handle part connected to a projecting part partially projecting in the width direction and changing its direction at a substantially right angle. and a supporting portion capable of supporting an auxiliary unit for assisting an operation performed by a surgeon, wherein the attachment/detachment portion has a fitting groove with one open end that fits into the projecting portion. and an engaging portion having an engaging groove with one end open for engaging with the handle portion. It is characterized by being connected to a connecting member. In addition, it is preferable that the projecting portion is integrally formed by bending the plate-shaped connecting member. Moreover, it is preferable that the support portion is formed on the upper portion of either the engaging portion or the fitting portion or the upper portion of both the engaging portion and the fitting portion. Furthermore, it is preferable that the support portions are arranged at a plurality of locations so as not to support the auxiliary units on the same straight line. Further, it is preferable that the support portion is a long hole-shaped support groove with one end open. Further, it is desirable that the support portion is formed with an undulating inner surface that allows the auxiliary unit to be adjusted to a plurality of support positions. Further, it is preferable that the support grooves have openings set at different angles with respect to the openings of the other support grooves. Further, it is preferable that the connecting member is arranged so as to be offset so as not to block the opening of the engaging groove, and the supporting portion of the fitting portion be arranged in the offset direction. Further, the auxiliary unit may be a lighting unit including irradiation means for irradiating light and a flexible movable portion having the irradiation means at one end and formed in a shaft shape.

In the supporting member according to the present invention, since the connecting member that connects the engaging portion and the fitting portion has the protrusion, the handle portion is in contact with the engaging portion, the protrusion, and the fitting portion. Moreover, since the connecting member always bends when these three points are in contact with the handle, the support member according to the present invention has the advantage that it is difficult to fall off from the handle by holding the handle. Moreover, the supporting member according to the present invention has the advantage of being easy to attach to the hook while having a simple structure utilizing the repulsive force against the bending of the connecting member. Furthermore, since the supporting member according to the present invention is formed by bending the plate-shaped connecting member to form the projecting portion, it is not necessary to weld another member to the connecting member. Therefore, the protruding portion can be formed integrally with the connecting member simply by bending the plate-like connecting member, so that there is also the advantage that the cost can be reduced and the weight can be reduced. Further, in the support member according to the present invention, since the support portion is arranged above either the engaging portion or the fitting portion or above both the engaging portion and the fitting portion, the supporting member is positioned above the handle portion. There is also the advantage that the unit can be attached and the attachment/detachment operation of the auxiliary unit can be easily performed. Furthermore, the support member according to the present invention has the support portions arranged at a plurality of positions so as not to support the auxiliary unit on the same straight line. is difficult to convey. Therefore, the support member according to the present invention can stably support the auxiliary unit supported by it. There is also an advantage that it is difficult to swing like . Further, in the support member according to the present invention, since the support portion is formed as an elongated hole-shaped support groove with one end opened, there is also the advantage that the auxiliary unit can be easily inserted and removed from the opening. Furthermore, the support member according to the present invention has the advantage that the mounting position of the auxiliary unit can be adjusted step by step because the inner surface of the support portion is wavy. As a result, for example, when the auxiliary unit is a lighting unit and is arranged to extend to the vicinity of the tip of the hook, there is also the advantage that it can be adjusted to an arbitrary position such as the center or the right end of the tip of the hook and is excellent in handling. Further, in the support member according to the present invention, the orientation of the opening is set at an angle different from the orientation of the opening of the other support grooves, so even if the auxiliary unit is pulled out in one direction by mistake, However, there is also the advantage that the support grooves that do not open in the pull-out direction prevent them from coming off. Further, the support member according to the present invention is offset to one side to the left or right so as not to block the opening of the engagement groove, and the support portion of the fitting portion is also arranged to be offset in the offset direction. There is also the advantage that it is easy to attach and detach from the hook even when the auxiliary unit is supported. This is because when the hook is removed from the supporting member, the handle portion moves away from the supporting portion, and the supporting member serves to restrict the movement of the hook toward the supporting portion. . In addition, since the support member according to the present invention uses the auxiliary unit as a flexibly movable lighting unit, there is an advantage that the operative field of the surgeon can be kept bright by arranging the irradiation means at the tip of the hook.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic explanatory drawing which shows the support member based on this invention, (a) is a top view, (b) is a front view, (c) is a perspective view seen from above, (d) is a perspective view seen from the downward direction. be. 1. It is a schematic explanatory drawing which shows the use condition of the support member of FIG. 1, (a) is a top view, (b) is a rear view, (b) is a perspective view seen from the front diagonally rearward, (c), FIG. 4 is a perspective view showing an example of a hook for attaching a support member; FIG. 4 is a schematic explanatory view showing another support member according to the present invention, where (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. is. It is a schematic explanatory drawing which shows the usage condition of another supporting member of FIG. 3, (a) is the perspective view seen from the front upper direction, (b) is the perspective view seen from the front lower direction.

A support member according to the present invention will be described with reference to FIGS. 1 to 4. FIG. 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 frequently used for opening an incision shown in FIG. 2(d). The hook 5 is composed of a gripping portion 6 gripped by a surgeon (not shown) and a hooking portion 7 extending from the gripping portion 6 at a substantially right angle. Become. The gripping portion 6 integrally includes a handle portion 8 connected to the hook portion 7 and extending axially, and a ring-shaped projecting portion 9 projecting in the width direction with respect to the handle portion 8. Become.

2(a) to 2(c), 4(a) and 4(b), the support member 1 according to the present invention is an auxiliary unit for irradiating the tip of the hook portion 7 with light. It is configured to be attachable with a lighting unit 40, which is an example. The illumination unit 40 comprises an irradiation means 41 for irradiating light, and a movable part 42 which has the irradiation means 41 at one end and is shaped like a shaft and is flexibly movable. The movable portion 42 includes a transmission line (not shown) capable of transmitting electric power and light to the irradiation means 41, and a transmission line (not shown) that is arranged along the transmission line so that the lighting unit 40 does not bend under its own weight and can be bent by human power. It contains a copper wire (not shown) that can be easily bent, is flexibly deformable by an external force, and has a shape-maintaining function of maintaining an arbitrary shape even when the external force is removed. In this way, lighting units 40 with a shape-retaining function can be arranged along the spurs 5, which are bent at right angles as shown.

The support member 1 according to the present invention is provided with an attachment/detachment portion that can be attached to and detached from the grip portion 6 . The detachable portion includes an engaging portion 10 that engages with the handle portion 6, a fitting portion 20 that fits with the projecting portion 9, and a connecting portion that integrally connects the engaging portion 10 and the fitting portion 20. and a member 30 .

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

The fitting portion 20 is composed of two members as shown in FIGS. 1(a), (b), (c) and FIGS. 3(a) and (d). It is fixedly arranged on the upper surface. The two members are arranged at a predetermined interval so that the handle portion 8 can be inserted therethrough, and form fitting grooves 21 and 22 into which the ring-shaped projecting portion 9 can be horizontally inserted. Become. 2(a), 2(b) and 4(a), 4(b). , are regulated so as not to escape in the vertical and horizontal directions. Further, a supporting portion capable of attaching and supporting the movable portion 42 of the lighting unit 40 is formed on one upper portion of the two members.

As shown in FIGS. 1 and 2, the supporting portion of the engaging portion 10 is arranged above the engaging groove 11, and has a vertically elongated opening facing the engaging groove 11 from the upper surface of the engaging portion 10. It is configured as a support groove 12 molded in the shape of an elongated hole.

As shown in FIGS. 1 and 2, a plurality of supporting portions of the fitting portion 20 are arranged above the fitting groove 21 side, and are opened from the upper surface of the fitting portion 20 toward the fitting groove 21. The support grooves 23a and 23b are formed in the shape of elongated long holes.

The groove widths of the support grooves 12, 23a, and 23b are set according to their depths. The width dimension is set to be narrow and slightly smaller than the diameter of the movable portion 42, and as the depth increases from here, the width dimension is set to be wide enough to allow the movable portion 42 to pass through. That is, the support groove 12 has a narrow return portion so that the movable portion 42 once attached cannot be easily removed.

On the other hand, the support groove 12 of the engaging portion of another form shown in FIG. 3 is formed in a horizontally elongated long hole shape that opens upward from the right side of the engaging portion 10 toward the upper side of the engaging groove 11 and extends obliquely upward. Further, as shown in FIG. 3C, the support groove 12 is formed such that the inner surface thereof is continuously wavy, and the support position of the movable portion 42 can be arbitrarily set. As a result, as shown in FIG. 4, the movable portion 42 can be supported on the back side of the support groove 12 or supported on the opening side of the support groove 12, and the irradiation means 41 can be positioned on the hook portion 7. It has the advantage of being able to be arbitrarily placed in the center or side of the body and easily changed to a position that does not interfere with the surgeon's operation.

Further, the support grooves 23a and 23b of the engaging portion of another form shown in FIG. 3 are formed in a vertically elongated hole shape opening from above on the fitting portion 21 side, or in a horizontally elongated hole shape opening from the upper side surface. ing.

Therefore, the support member 1 shown in FIG. 3 has the support groove 12 (horizontally long) of the engaging portion 10 closest to the hook portion 7, the support groove 23a (longitudinal) of the fitting portion 20 which is next closest, and the furthest support groove 23b. (Landscape) and the movable portion 42 are alternately supported horizontally and vertically. Therefore, even if the operator accidentally pulls the movable portion 42 upward, the movable portion 42 is supported by the support grooves 12 and 23b having inner surfaces at the top. Prevents falling off.

The connecting member 30 has a plate-like shape, and the fitting portion 20 and the engaging portion 10, which are composed of two parts, are fixed by a method such as welding, screwing, bonding, or integral molding. It consists Further, the connecting member 30 is provided with a protruding portion 31 protruding upward near the middle thereof, and this protruding portion 31 is bent so as to protrude upward toward the fixed engaging portion 10 and fitting portion 20 side. It is processed and shaped. As a result, when the support member 1 according to the present invention is attached to the hook shown in FIG. The connecting member 30 can be pressed downward by the engaging portion 10 and the fitting portion 20, and the warp of the connecting member 30 can be used to stabilize the state of attachment to the hook 5. As shown in FIG.

Further, the connecting member 30 is formed so that its tip is biased in the width direction, and is offset so as not to block the engaging groove 11 of the engaging portion 10 attached thereto from below. Therefore, as shown in FIGS. 2(b) and 4(b), the handle portion 8 can be guided from below the engaging portion 10 and set in the engaging groove 11. As shown in FIG.

Next, the operation of the support member 1 according to the present invention will be described. First, in order to engage the muscle hook 5 with the engagement groove 11 of the support member 1 shown in FIGS. Insert diagonally.

The obliquely inserted handle portion 8 is returned horizontally along the connecting member 30. At this time, the projecting portion 9 is fitted so that the projecting portion 9 does not interfere with the upper portion of the fitting portion 20. It is pulled so that it is located on the rear side of the part 20 .

When the operator horizontally returns the handle portion 8 along the connecting member 30 as described above, the phase of the protruding portion 9 matches the phase of the fitting grooves 21 and 22, and the protruding portion 9 moves forward. It is made to fit into the push fitting grooves 21 and 22 .

As a result, as shown in FIG. 2(b), the grip portion 6 has an engagement groove 11 at the upper portion of the tip side of the handle portion 8, an upper end of the projection portion 31 at the lower portion of the rear end side of the handle portion 8, and an overhang portion. The upper part of 9 is in contact with the fitting grooves 21 and 22 and a plurality of locations of the support member 1 and is sandwiched by the support member 1 . At this time, a bending moment is generated in the connecting member 30 with the projection 31 in contact with the handle 8 as a fulcrum. If the support member 1 can be attached to the hook 5 in this manner, the lighting unit 40 is attached to the support portion.

Operations and effects will be described in accordance with the procedure for attaching the lighting unit 40 to the support member 1 in the state of being attached to the hook 5 as described above. After describing the operation and effect of the support member 1 shown in FIGS. 1 and 2, the operation and effect of another form of the support member 1 shown in FIGS. 3 and 4 will be described in that order.

First, the action and effect of the support member 1 shown in FIGS. 1 and 2 will be described. The operator places the irradiation means 41 of the illumination unit 40 at the center of the hook portion 7 and at a position slightly protruding from the tip as shown in FIGS. The movable part 42 is bent at 90 degrees so as to follow the bending, and from there it is arranged along the handle part 8 and aligned with the opening of the vertically long support groove 12 .

Subsequently, the operator pushes the movable part 42 into the vertical support groove 12 from above and then pushes the movable part 42 into the vertical support groove 23a from above. At this time, the support groove 23a is not arranged on the same straight line with respect to the support groove 12 as shown in FIG. 2(a). As a result, the movable portion 42 supported by the support groove 12 and the support groove 23a is divided into a portion extending horizontally along the handle portion 8 and a portion extending gradually obliquely with the support groove 12 as a boundary. change your posture. Furthermore, the vertically elongated support groove 23b is oriented about 90 degrees with respect to the support groove 23a, and is not arranged on the same straight line with respect to the support groove 12 as well.

By not arranging the plurality of support grooves 12, 23a, and 23b on the same straight line, for example, the movable portion 42, which is supported by these support grooves 12, 23a, and 23b, is moved around the axis after the support groove 23b. Even if it is rotated, this rotational force is canceled by the support grooves oriented in different directions, and it is unlikely that the irradiation section 41 positioned at the tip end will swing along the hook section 7 . Therefore, in the support member 1 according to the present invention, the support grooves 12, 23a, and 23b are arranged so as not to line up on the same straight line, so that the irradiation section 41 can be prevented from swinging like a pendulum. Even if the operator accidentally touches the movable part 42 and rotates it, there is an advantage that the irradiated part is unlikely to change.

Next, the operation and effects of the support member 1 of another form shown in FIGS. 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 FIGS. 42 is bent at 90 degrees, and arranged along the handle portion 8 from here to match with the opening of the support groove 12 .

Subsequently, the operator pushes the movable part 42 into the oblong support groove 12 from the side to attach it. Similarly, the movable portion 42 is pushed into the vertical support groove 23a from above. As shown in FIG. 3A, the support groove 23a is not arranged on the same straight line with respect to the oblong support groove 12, so that it is gradually obliquely supported with respect to the handle portion 8. posture.

Further, the oblong support groove 23b is arranged to change the orientation by about 45 degrees with respect to the support groove 23a, and is not arranged on the same straight line with the support groove 12 described above. Therefore, in the support member 1 of another form shown in FIGS. 3 and 4, the irradiating means 41 is less likely to swing like a pendulum, like the support member 1 shown in FIGS.

Furthermore, since the support grooves 12, 23a, and 23b of the support member 1 shown in FIGS. Even if force is applied to the movable portion 42 by touching the lighting unit 40 mounted on the support groove, 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 FIGS. 3 and 4 is less likely to drop the movable portion 42 than the support member 1 shown in FIGS. 1 and 2 which opens in the same direction.

In addition, the support member 1 shown in FIGS. 3 and 4 has the advantage that it is easy to attach and detach from the 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 engaging groove 11, and the support grooves 23a and 23b of the fitting portion 20 are shifted in the offset direction of the connecting member 30. This is because the

Advantages of the above-described offset arrangement of the connecting member 30 will be specifically described along the procedure for removing the supporting member 1 from the hook 5. FIG. First, the projecting portion 9 is pulled rearward to remove it from the fitting grooves 21 and 22, and the projecting portion 9 is pulled upward. At this point, the gripping portion 6 tilts obliquely from the horizontal position with respect to the supporting member 1, and the bending moment generated in the connecting member 30 is eliminated.

In addition, the gripping portion 6 in this tilted posture is pivoted about the engagement groove 11 in the tilted state, and the handle portion 8 is pulled out downward from the engagement groove 11 . When the grasping portion 6 in this tilted state is turned, the turning direction is the direction away from the engaging grooves 23a and 23b. There is no Thus, the support member 1 shown in FIGS. 3 and 4 has the advantage that it can be easily removed from the hook 5 even when the lighting unit 40 is still attached to the support grooves 12, 23a, and 23b. There is

The auxiliary unit only needs to have a movable part 42 having a shape-maintaining function. It may be replaced with a suction means or the like. Moreover, the projecting portion 31 is not limited to being formed by bending, and may be formed by fixedly arranging an interference member that interferes with the handle portion 8 .

REFERENCE SIGNS LIST 1 : support member 5 : hook 7 : hook 8 : handle 9 : projecting portion 10 : engagement portion 11 : engagement groove 12 : support portion 20 : fitting portions 21, 22 : fitting grooves 23a, 23b ... Supporting portion 30 ... Connecting member 31 ... Protruding portion 40 ... Auxiliary unit

Claims (9)

an attachable/detachable part formed so as to be attachable/detachable to/from the muscle hook, comprising a hook part extending from a shaft-shaped handle part connected to the projecting part partially projecting in the width direction and changing its direction at a substantially right angle; and a support member capable of supporting an auxiliary unit for assisting surgery by
The attachment/detachment portion is composed of a fitting portion having a fitting groove with one end open for fitting to the overhanging portion, and an engaging portion having an engagement groove having one end open for engaging with the handle portion. configured,
A supporting member, wherein the engaging portion and the fitting portion are connected to a connecting member provided with a projecting portion that contacts the handle portion. 2. The supporting member according to claim 1, wherein the projecting portion is integrally formed by bending the plate-shaped connecting member. 3. The support according to claim 1 or 2, wherein the support portion is formed on an upper portion of one of the engaging portion or the fitting portion, or on an upper portion of both the engaging portion and the fitting portion. Element. 4. The support member according to claim 1, wherein the support portions are arranged at a plurality of locations so as not to support the auxiliary units on the same straight line. 5. The support member according to claim 1, wherein said support portion is an elongated support groove with one end open. 6. The support member according to any one of claims 1 to 5, wherein the support portion has an undulating inner surface that allows the auxiliary unit to be adjusted to a plurality of support positions. 7. The supporting member according to claim 5, wherein the opening direction of the supporting groove is set at a different angle from the opening direction of the other supporting grooves. The connecting member is arranged offset so as not to block the opening of the engaging groove,
9. The support member according to any one of claims 3 to 8, wherein the support portion of the fitting portion is arranged in the offset direction. 1. The auxiliary unit is a lighting unit comprising irradiation means for irradiating light and a movable part which has the irradiation means at one end and is formed in the shape of a shaft and is flexibly movable. 9. A support member according to any one of 8.

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