JPH07108299B2 - Skin excision tool - Google Patents

Description

TECHNICAL FIELD The present invention relates to a medical skin excision instrument having a cylindrical cutting edge.

[Prior Art] Conventionally, in this type of skin excision instrument, the skin excision instrument can be excised in a circular shape by applying a cylindrical blade edge formed at the front end of the blade to the skin and rotating the skin excision instrument. I was able to do it.

[Problems to be Solved by the Invention] However, in the above-described skin excision tool, in order to take out the skin piece that has been excised and adhered to the inside of the blade edge, insert tweezers or the like into the blade portion and use the tweezers or the like. There is a problem that it is necessary to pick up the skin piece from the front of the cutting edge, and such work is time-consuming and troublesome.

In order to solve the above problems, an object of the present invention is to provide a skin resection tool that can very easily take out a skin piece attached to the inside of a cutting edge.

[Means for Solving the Problem] In order to solve the above problems, the invention of the present application is directed to a blade portion having a cylindrical blade tip for cutting out the skin into a circular shape, and a handle attached to the blade portion. And an extruding member that is integrally and removably provided in the same handle and that pushes out the cut-out skin piece to the outside of the blade portion by being inserted into the blade portion.

[Operation] In the skin resection tool configured as described above, the cut-out skin piece is pushed out of the blade portion by inserting the pushing member into the blade portion.

[Embodiment] A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a small-diameter cylindrical blade portion 2 is fixed to the front end (left end) of a cylindrical handle 1. A cylindrical blade edge 3 is formed at the tip of the blade portion 2 as well.

As shown in FIGS. 1 and 5, a cylindrical extruding member 4 is integrally provided at the rear end of the handle 1 through a thin folding hole 5 provided along the peripheral edge thereof. The handle 1 and the push-out member 4 can be separated from each other by folding the folding opening 5. A small-diameter columnar extruding rod 6 is formed at the rear portion of the extruding member 4, and a circular extruding end face 7 is formed at the rear end of the extruding member 6.
Are formed. The push rod 6 is longer than the length from the rear end of the handle 1 to the cutting edge 3.

Next, how to use the skin excision tool configured as described above will be described.

In the state of FIG. 1, when the cylindrical blade tip 3 is applied to the skin and the handle 1 is rotated, the blade portion 2 is also rotated together with the handle 1 to cut the skin into a circular shape, and the cut skin piece (Fig. (Not shown) adheres to the inside of the cutting edge 3. Therefore, the push-out member 4 at the rear end of the handle 1 is broken off at the folding opening 5.

Next, as shown in FIG. 2 to FIG.
With the front and back reversed, the push-out rod 6 at the rear portion is inserted into the blade portion 2 from the rear end opening of the handle 1 through the inside of the handle 1. As a result, the extruding end surface 7 of the extruding rod 6 hits the skin piece inside the blade tip 3, so that the skin piece can be easily pushed out from the blade tip 3 to the outside.

Therefore, it is not necessary to bring another tool such as tweezers to take out the skin piece, and the skin piece can be taken out very easily.

The skin excision tool once used in this way is discarded as it is.

Next, a second embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 6, 7, and 9, a small-diameter cylindrical blade portion 12 is fixed to the front end of a handle 11 having a cylindrical front portion and a cylindrical rear portion. A cylindrical cutting edge 13 is also formed at the tip of the blade portion 12.

An insertion groove 14 extending in the front-rear direction is provided at the rear portion of the handle 11, and the insertion groove 14 is opened on both upper and lower surfaces and the rear surface of the handle portion 11.

An extruding member 16 is integrally provided at a rear portion of the handle 11 via two breaking portions 15 provided at rear ends of both side surfaces 14a of the insertion groove 14. The extruding member 16 is provided with a small-diameter columnar extruding rod 17 at its front part, the extruding rod 17 is fixed to the break-off part 15 at the rear part thereof, and the extruding rod 17 is inserted into the insertion groove 14. It is supposed to be located. Further, a circular extruding end face 18 is provided at the front end of the extruding rod 17, and a square plate-like twist portion 19 is provided at the rear end.
Are provided so as to be substantially horizontal. Extruded member 16
Can be detached from the handle 11 by breaking it off at the breaking portion 15.

Next, how to use the skin excision tool configured as described above will be described.

In the state shown in FIGS. 6 and 7, the cylindrical blade edge 13 is applied to the skin to make the handle 11
When the blade is rotated, the blade 12 is rotated together with the handle 11 to cut the skin into a circular shape, and the cut skin piece (not shown)
Adheres to the inside of the cutting edge 13. Therefore, the extruded member 16 formed integrally with the handle 11, the twist portion 19 in the circumferential direction of the handle 11,
That is, it is broken by the breaking portion 15 by twisting in the standing direction. Next, as shown in FIG. 8 and FIG.
It slides forward along the insertion groove 14 provided in 11. Then, the extruded rod 17 of the extruded member 16 that has been broken off is inserted into the blade portion 12 from the rear of the handle 11 through the inside thereof. As a result, the extruding end surface 18 of the extruding rod 17 hits a piece of skin inside the cutting edge 13,
The skin piece can be easily pushed forward and outward from the cutting edge 13.

Therefore, it is not necessary to bring another tool such as tweezers to take out the skin piece, and the skin piece can be taken out very easily.

Next, a third embodiment embodied in the present invention will be described with reference to FIGS.

As shown in FIGS. 11 to 13, a small-diameter cylindrical blade portion 22 is fixed to the front end of a handle 21 having a cylindrical front portion and a cylindrical rear portion. A cylindrical cutting edge 23 is also formed at the tip of the blade portion 22.

A sliding groove 24 extending in the length direction is provided substantially in the center in the length direction of the handle 21, the upper portion of the groove 24 is opened on the upper surface of the handle 21, and the lower portion is in a hollow portion 21a in the handle 21. It is open. Handle 21
An extruding member 25 is integrally provided in the hollow portion 21a of the sliding member, and a sliding knob 26 fixed to the rear end of the extruding member 25 has a sliding groove 24a.
From above. As shown in FIG. 11, the sliding knob 26 has a sealing paper 27 provided around the outer peripheral surface of the handle 21 in a state where the rear end surface 26a is in contact with the rear end surface 24a of the sliding groove 24.
Are fixed by coming into contact with the front end surface 26b of the sliding knob 26. The sliding knob 26 can be easily slid forward by breaking the sealing paper 27.

The extruding member 25 is provided with a small-diameter columnar extruding rod 28 at its front portion. The extruding rod 28 has a tip 23 at the tip in the state shown in FIG.
It is inserted into the blade portion 22 to such an extent that it does not project forward from the blade portion 22. A circular extruding end surface 29 is formed at the front end of the extruding rod 28, and the extruding rod 28 moves forward when the sliding knob 26 is slid forward.

Next, how to use the skin excision tool configured as described above will be described.

In the state of FIG. 11, when the handle 21 is rotated by applying the cylindrical blade edge 23 to the skin, the blade 22 is also rotated together with the handle 21, the skin is cut into a circular shape, and the cut skin piece (Fig. (Not shown) adheres to the inside of the cutting edge 23. Therefore, as shown in FIG.
By breaking the sealing paper 27 provided around the circumference of the handle portion 21, the sliding knob 26 provided on the extruding member 25 is grooved.
It can slide forward along 24. When the sliding knob 26 is slid forward in this state, the push rod 28, which is slightly inserted in the blade portion 22, is deeply inserted in the blade portion 22 accordingly. As a result, the extrusion end face 29 of the extrusion rod 28 is
Since it touches the inner skin piece, the same skin piece can be easily pushed outward from the blade edge 23.

Therefore, it is not necessary to bring another tool such as tweezers to take out the skin piece, and the skin piece can be taken out very easily.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 14 and 15, a small-diameter cylindrical blade portion 32 is fixed to the front end of a handle 31 having a cylindrical front portion and a cylindrical rear portion. At the tip of the blade portion 32, a cylindrical blade edge 33 is formed as well. An insertion hole 34 is formed at the front end portion of the handle 31, an upper portion of the insertion hole 34 opens on the upper surface of the handle 31, and a lower portion communicates with the inside of the blade portion 32. Further, the handle 31 is provided with an insertion groove 35 extending from substantially the center in the length direction to the rear end.
The openings 35 are open on both the upper and lower surfaces and the rear surface of the handle 31.

An extruding member 37 is integrally provided at the rear portion of the handle 31 via two breaking portions 36 provided on the rear end surface of the handle 31.
The push-out member 37 is provided with a flexible small-diameter columnar push-out rod 38 at its front portion, and the push-out rod 38 is positioned in the insertion groove 35. The extruding rod 38 has a circular extruding end face 39 at its front end, and has a columnar twist portion having the same diameter as the handle 31 at its rear end.
Equipped with 40. The twist portion 40 is fixed to the break-off portion 36 at its front end. The push-out member 37 can be detached from the handle 31 by being broken by the break-off portion 36.

Next, how to use the skin excision tool configured as described above will be described.

In the state shown in Figs. 14 and 15, put a cylindrical blade edge 33 on the skin and handle 31
When the blade is rotated, the blade 32 is rotated together with the handle 31 to cut the skin into a circular shape, and the cut skin piece (not shown)
Adheres to the inside of the cutting edge 33. Therefore, the pushing member 37 formed integrally with the handle 31 is broken by the breaking portion 36 by twisting the twisting portion 40 in the circumferential direction. Then, as shown in FIGS. 16 and 17, when the extruding rod 38 of the extruded member 37 that has been broken off is inserted into the communication hole 34 obliquely from the upper rear side toward the lower front side, the extruding rod 38 bends due to its elasticity. Then, it passes through the communication hole 34 and enters the blade portion 32. As a result, the extruding end surface 39 of the extruding rod 38 contacts the skin piece inside the blade tip 33, so that the skin piece can be easily pushed outward from the blade tip 33.

Therefore, it is not necessary to bring another tool such as tweezers to take out the skin piece, and the skin piece can be taken out very easily.

Next, a fifth embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 19, a cylindrical fitting portion 41a is also provided at the front end of the cylindrical handle 41. A small-diameter cylindrical blade portion 42 is fixed to the tip of the fitting portion 41a. A cylindrical blade edge 43 is also formed at the tip of the blade portion 42.

An insertion hole 44 is formed at the front end portion of the handle 41, an upper portion of the insertion hole 44 is opened on an upper surface of the handle 41, and a lower portion thereof communicates with the blade portion 42. Further, as shown in FIGS. 18 to 20, an extruding member 45 is integrally formed on the fitting portion 41a of the handle 41 as follows.

As shown in FIG. 19, the extruding member 45 has a flexible small-diameter columnar extruding rod 46 at the rear portion, and a circular extruding end face 47 is provided at the rear end of the extruding rod 46. . The pushing member 45 has a bottomed cylindrical cap portion 48 at the front. 18th,
In the state shown in FIG. 20, the push rod 46 is inserted from the front end of the blade portion
The cap portion 48 of the extruding member 45 is inserted into the hollow portion 41b of the a and the handle 41, and is fitted on the fitting portion 41a so as to cover the blade portion 42. The pushing member 45 can be detached from the handle 41 by pulling the cap 48 forward of the handle 41.

Next, how to use the skin excision tool configured as described above will be described.

First, in the state shown in FIGS. 18 and 20, the cap portion 48 of the pushing member 45.
Is pulled toward the front of the handle 41, the push-out member 45 is separated from the handle 41. When the exposed cylindrical blade edge 43 is applied to the skin and the handle 41 is rotated as it is, the skin can be excised in a circular shape. The cut piece of skin (not shown) adheres to the inside of the cutting edge 43. Therefore, as shown in FIGS. 16 and 17, the push-out rod 46 of the pushed-out push-out member 45 is inserted into the insertion hole 44.
Insert it from the diagonally upper back to the lower front,
The push rod 46 bends due to its elasticity, passes through the insertion hole 44, and enters the blade portion 42. As a result, the extruding end surface 47 of the extruding rod 46 abuts on the skin piece inside the blade tip 43, so that the skin piece can be easily pushed outward from the blade tip 43.

[Effect of the Invention] As described above, the skin excision tool of the present invention is excellent in that it is not necessary to bring another tool and the skin piece attached to the inner peripheral surface of the cutting edge can be taken out very easily. Exert the effect.

[Brief description of drawings]

1 to 5 show a first embodiment of a skin excision tool according to the present invention, FIG. 1 is a perspective view of the skin excision tool, FIG. 2 is an exploded perspective view in which an extruding member is removed from a folding mouth, and FIG. FIG. 4 is a perspective view showing a state in which an extruding member is inserted into the handle of the skin excision tool, FIG. 4 is a sectional view showing a state in which the extruding member is also inserted into the handle, and FIG. 5 is a partially enlarged sectional view of a folded portion. 6 to 10 show a second embodiment of the skin excision tool according to the present invention, FIG. 6 is a perspective view of the skin excision tool, FIG. 7 is a plan view of the same, and FIG. 8 is a handle of the skin excision tool. FIG. 9 is a perspective view showing a state in which the pushing member is inserted, FIG. 9 is a sectional view showing a state in which the pushing member is also inserted, and FIG.
It is an AA expanded sectional view of a figure. 11 to 13 show a third embodiment of the skin excision tool of the present invention, FIG. 11 is a perspective view of the skin excision tool, and FIG. 12 is a state in which the pushing member of the skin excision tool is slid forward. A perspective view, FIG. 13 (a) is a cross-sectional view of a state in which the pushing member is also slid forward, and FIG. 13 (b) is FIG. 13 (a).
FIG. 14 to 17 show a fourth embodiment of the skin excision tool according to the present invention, FIG. 14 is a perspective view of the skin excision tool, FIG. 15 is a plan view of the same, and FIG. 16 is an extruding member of the skin excision tool. FIG. 17 is a perspective view showing a state in which is inserted into the handle, and FIG. 17 is a sectional view showing a state in which the pushing member is also inserted into the handle. 18th-22nd
The figure shows a fifth embodiment of the skin excision tool in the present invention,
FIG. 18 is a perspective view showing a state where an extruding member is attached to the handle of the skin cutting tool, FIG. 19 is an exploded perspective view showing a state where the extruding member is removed from the handle of the skin cutting tool, and FIG. 20 is a state shown in FIG. FIG. 21 is a cross-sectional view of the skin excision tool, FIG. 21 is a perspective view of the extruded member of the skin excision tool inserted into a handle, and FIG. In the figure, 1,11,21,31,41 are handles, 2,12,22,32,42 are blades, and 3,1
3,23,33,43 are cutting edges, and 4,16,25,37,45 are extruding members.

Claims (1)

[Claims] 1. A blade portion (2,12,22,32,42) having a cylindrical blade edge (3,13,23,33,43) for cutting the skin into a circular shape, and the blade portion (2,12,22,32,42). 2,12,22,32,42) attached to the handle (1,11,21,31,
41) and the same handle (1,11,21,31,41) provided integrally and detachably from the blade part (2,12,22,32,42)
By being inserted into the inside, the extruded member (4,16,25,37,) that pushes the cut-out skin piece out of the blade (2,12,22,32,42)
45) A skin excision tool comprising: