JP2021186934A - Nerve regeneration guide tube cutter - Google Patents

Abstract

To provide a nerve regeneration guide tube cutter which can conduct cutting operation easily, accurately, and rapidly in cutting a nerve regeneration guide tube in a predetermined length.SOLUTION: A nerve regeneration guide tube cutter 1 includes: a base member; a groove 12 for placing a nerve regeneration guide tube which is arranged so as to extend in a first direction and dent from a surface 15 of the base member, and on which the nerve regeneration guide tube 100 is placed; and a guide groove 14 which extends in a second direction orthogonal to the first direction in which the groove 12 for placing a nerve regeneration guide tube extends, traverses the groove 12 for placing a nerve regeneration guide tube, and guides passage of a scalpel 50 for cutting the nerve regeneration guide tube 100. A plurality of guide grooves 14 are arranged along the first direction.SELECTED DRAWING: Figure 8

Description

The present invention relates to a nerve regeneration-inducing tube cutting device used for cutting a nerve regeneration-inducing tube to a predetermined length.

The following Patent Documents 1 and 2 disclose techniques for a nerve regeneration-inducing tube for reconnecting peripheral nerves that have been cut or excised due to an accident or surgery by utilizing the elongation of nerve cells.

Japanese Unexamined Patent Publication No. 2018-140184 Japanese Patent No. 6469500

When connecting peripheral nerves cut or excised during surgery using a nerve regeneration induction tube, the nerve regeneration induction tube is cut to a predetermined length and used. In this case, since the length of the nerve regeneration induction tube required for each affected area is different, the required length is measured during the operation, and the nerve regeneration induction tube is cut to a predetermined length on the spot. When cutting the nerve regeneration induction tube, it is necessary to perform the cutting work accurately and quickly.

The present invention has been made in view of the above problems, and when cutting a nerve regeneration-inducing tube to a predetermined length, the nerve regeneration-inducing tube cutting device can easily perform the work accurately and quickly. The purpose is to provide.

In the present specification, cutting the nerve regeneration-inducing tube to a predetermined length means both a complete cutting in which the nerve regeneration-inducing tube is completely divided into two and a partial cutting in which the nerve regeneration-inducing tube is not completely divided into two and a slit is inserted. Means.

This nerve regeneration-inducing tube cutting device is a nerve regeneration-inducing tube cutting device used when cutting a nerve regeneration-inducing tube to a predetermined length, and is a base member and a surface of the base member extending in a first direction. A second direction orthogonal to the first direction in which the nerve regeneration-inducing tube mounting groove and the nerve regeneration-inducing tube mounting groove extend, which are provided so as to be recessed from the center and on which the nerve regeneration-inducing tube is placed. The guide groove is provided with a guide groove that extends to, traverses the nerve regeneration-inducing tube mounting groove, and guides the passage of the cutting tooth for cutting the nerve regeneration-inducing tube, and the guide groove is in the first direction. A plurality of them are provided along the line.

In other forms of the nerve regeneration-inducing tube cutting device, one end of the nerve regeneration-inducing tube mounting groove is opened toward the first side surface of the base member, and the other of the nerve regeneration-inducing tube mounting groove is opened. The end is not open toward the second side surface of the base member, which is located on the side opposite to the first side surface.

In other forms of the nerve regeneration-inducing tube cutting device, both ends of the nerve regeneration-inducing tube mounting groove are open toward the first side surface and the second side surface of the base member.

In other forms of the nerve regeneration induction tube cutting device, one end and the other end of the guide groove are located on the surface of the base member, and the guide groove has a curved shape recessed in the depth direction of the base member. is doing.

In other forms of nerve regeneration induction tube cutting instruments, one end of the guide groove is located on the surface of the base member, and the other end of the guide groove is open toward the third side surface of the base member. ing.

In other forms of the nerve regeneration-inducing tube cutting device, the deepest portion of the nerve regeneration-inducing tube mounting groove and the deepest portion of the guide groove coincide with each other.

In other forms of the nerve regeneration-inducing tube cutting device, the deepest portion of the nerve regeneration-inducing tube mounting groove is deeper than the deepest portion of the guide groove.

According to this nerve regeneration induction tube cutting device, when cutting a nerve regeneration induction tube to a predetermined length, it is possible to easily perform the work accurately and quickly. ..

It is an overall perspective view of the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is a top view of the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is a bottom view of the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is a front view of the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is a back view of the nerve regeneration induction tube cutting device of Embodiment 1. FIG. It is a left side view of the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is a right side view of the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is a schematic diagram which shows the cutting state of the nerve regeneration induction tube using the nerve regeneration induction tube cutting instrument of Embodiment 1. FIG. It is an overall perspective view of the nerve regeneration induction tube cutting instrument of Embodiment 2. FIG. It is a top view of the nerve regeneration induction tube cutting instrument of Embodiment 2. FIG. It is a bottom view of the nerve regeneration induction tube cutting instrument of Embodiment 2. FIG. It is a front view of the nerve regeneration induction tube cutting device of Embodiment 2. It is a back view of the nerve regeneration induction tube cutting apparatus of Embodiment 2. FIG. It is a left side view of the nerve regeneration induction tube cutting instrument of Embodiment 2. It is a right side view of the nerve regeneration induction tube cutting instrument of Embodiment 2. It is a schematic diagram which shows the cutting state of the nerve regeneration induction tube using the nerve regeneration induction tube cutting instrument of Embodiment 2. It is an overall perspective view of the nerve regeneration induction tube cutting instrument of Embodiment 3. FIG. It is a top view of the nerve regeneration induction tube cutting instrument of Embodiment 3. It is a bottom view of the nerve regeneration induction tube cutting instrument of Embodiment 3. It is a front view of the nerve regeneration induction tube cutting instrument of Embodiment 3. It is a back view of the nerve regeneration induction tube cutting device of Embodiment 3. It is a left side view of the nerve regeneration induction tube cutting instrument of Embodiment 3. It is a right side view of the nerve regeneration induction tube cutting instrument of Embodiment 3. It is a schematic diagram which shows the cutting state of the nerve regeneration induction tube using the nerve regeneration induction tube cutting instrument of Embodiment 3.

The nerve regeneration induction tube cutting device of each embodiment based on the present invention will be described below with reference to the drawings. When the number, quantity, etc. are referred to in the embodiments described below, the scope of the present invention is not necessarily limited to the number, quantity, etc., unless otherwise specified. The same reference number may be assigned to the same part or equivalent part, and duplicate explanations may not be repeated. It is planned from the beginning to use the configurations in the embodiments in appropriate combinations. In the figure, the actual dimensional ratio is not shown, and some ratios are shown differently in order to facilitate understanding of the structure.

(Embodiment 1)
The configuration of the nerve regeneration induction tube cutting device 1 in the present embodiment will be described with reference to FIGS. 1 to 7. 1 to 7 are an overall perspective view, a plan view, a bottom view, a front view, a rear view, a left side view, and a right side view of the nerve regeneration induction tube cutting device 1.

This nerve regeneration induction tube cutting device 1 is used when cutting the nerve regeneration induction tube 100 (see FIG. 8) to a predetermined length. The nerve regeneration guiding tube cutting device 1 is provided with a rectangular base member 10 extending in a first direction (X direction in FIG. 1) so as to be recessed from the surface 15 of the base member 10, and a nerve regeneration guiding tube 100 is placed therein. The nerve regeneration guiding tube mounting groove 12 and the nerve regeneration guiding tube mounting groove 12 extend in a second direction (Y direction in FIG. 1) orthogonal to the first extending direction, and the nerve regeneration guiding tube It is provided with a guide groove 14 that traverses the mounting groove 12 and guides the passage of the cutting tooth for cutting the nerve regeneration guiding tube 100.

A plurality of guide grooves 14 are provided along the first direction. The nerve regeneration-inducing tube cutting device 1 of the present embodiment is provided with 50 guide grooves 14 at a pitch of 1 [mm].

The rectangular base member 10 has a surface 15 on which a nerve regeneration guiding tube mounting groove 12 and a guide groove 14 are provided, a first side surface 16a located on the right side surface side, and a first side surface 16a located on the side opposite to the first side surface 16a. It has two side surfaces 16b, a third side surface 16c located on the front side, and a fourth side surface 16d located on the side opposite to the third side surface 16c.

One end of the nerve regeneration guiding tube mounting groove 12 has an open end 12a that opens toward the first side surface 16a of the base member 10. The other end of the nerve regeneration guiding tube mounting groove 12 has a closed end 12b that is not open toward the second side surface 16b located on the side opposite to the first side surface 16a of the base member 10.

With reference to FIG. 6, the groove shapes of the nerve regeneration guiding tube mounting groove 12 and the guide groove 14 will be described. The nerve regeneration guiding tube mounting groove 12 is provided so as to extend in the depth direction (X direction in FIG. 1) of the base member 10, and the bottom surface has a semicircular shape. One end and the other end of the guide groove 14 are located on the surface 15 of the base member 10 and have a curved shape (radius R1) recessed in the depth direction of the base member 10. The deepest part P1 of the nerve regeneration guide tube mounting groove 12 and the deepest part d1 of the guide groove 14 coincide with each other. The width of the guide groove 14 in the first direction (X direction in FIG. 1) may be a width that allows a medical instrument such as a scalpel to pass through, but is about 0.5 [mm] to about 2 [mm]. It should be.

With reference to FIG. 8, the cutting state of the nerve regeneration guiding tube 100 using the nerve regeneration guiding tube cutting device 1 will be described. FIG. 8 is a schematic view showing a cutting state of the nerve regeneration guiding tube 100 using the nerve regeneration guiding tube cutting device 1.

In cutting the nerve regeneration-inducing tube 100 using the nerve regeneration-inducing tube mounting groove 12 and the guide groove 14, the nerve regeneration-inducing tube 100 is placed in the nerve regeneration-inducing tube mounting groove 12. At this time, one end of the nerve regeneration induction tube 100 may be arranged so as to be in contact with the closed end 12b. When cutting the nerve regeneration guiding tube 100, as shown in FIG. 8, the scalpel 50 is moved along the guide groove 14 (in the direction of arrow C in FIG. 8) to a predetermined length in units of 1 [mm]. , The nerve regeneration induction tube 100 can be easily and quickly cut.

As shown in FIGS. 1 and 2, 5 [mm], 10 [mm], 15 [mm], 20 [mm] on the third side surface 16c located on the front side of the nerve regeneration induction tube cutting device 1. , 25 [mm], 30, 35 [mm], 40 [mm] and 45 [mm] are provided so that the other end of the guide groove 14 is open to the third side surface 16c. Further, each number 18 is displayed. This makes it possible to easily determine the length to be cut.

(Embodiment 2)
The configuration of the nerve regeneration induction tube cutting device 2 in the present embodiment will be described with reference to FIGS. 9 to 15. 9 to 15 are an overall perspective view, a plan view, a bottom view, a front view, a rear view, a left side view, and a right side view of the nerve regeneration induction tube cutting device 2.

This nerve regeneration induction tube cutting device 2 is used when cutting the nerve regeneration induction tube 100 (see FIG. 16) to a predetermined length. The nerve regeneration guiding tube cutting device 2 is provided with a rectangular base member 20 extending in the first direction (X direction in FIG. 9) so as to be recessed from the surface 25 of the base member 20, and the nerve regeneration guiding tube 100 is placed therein. The nerve regeneration guiding tube mounting groove 22 and the nerve regeneration guiding tube mounting groove 22 extend in a second direction (Y direction in FIG. 9) orthogonal to the first extending direction, and the nerve regeneration guiding tube It is provided with a guide groove 24 that crosses the mounting groove 22 and guides the passage of the cutting tooth for cutting the nerve regeneration guiding tube 100.

A plurality of guide grooves 24 are provided along the first direction. In the nerve regeneration induction tube cutting device 2 of the present embodiment, 54 guide grooves 24 are provided at a pitch (P) of 1 [mm].

The rectangular base member 20 has a surface 25 on which a nerve regeneration guiding tube mounting groove 22 and a guide groove 24 are provided, a first side surface 26a located on the right side surface side, and a first side surface 26a located on the side opposite to the first side surface 26a. It has two side surfaces 26b, a third side surface 26c located on the front side, and a fourth side surface 26d located on the side opposite to the third side surface 26c.

One end of the nerve regeneration guiding tube mounting groove 22 has an open end 22a that opens toward the first side surface 26a of the base member 20. The other end of the nerve regeneration guiding tube mounting groove 22 has a closed end 22b that is not open toward the second side surface 26b located on the opposite side of the first side surface 26a of the base member 20.

With reference to FIG. 14, the groove shapes of the nerve regeneration guiding tube mounting groove 22 and the guide groove 24 will be described. The nerve regeneration guiding tube mounting groove 22 is provided so as to extend in the depth direction (X direction in FIG. 9) of the base member 20, and the bottom surface has a semicircular shape. One end of the guide groove 24 is located on the surface 25 of the base member 20, and the other end of the guide groove 24 is open toward the third side surface 26c of the base member 20. The guide groove 24 has a curved shape that is recessed in the depth direction of the base member 20, and is provided so that the other end is open to the third side surface 26c.

The depth d2 of the deepest portion P2 of the nerve regeneration guiding tube mounting groove 22 is provided deeper than the depth d1 of the deepest portion P1 of the guide groove 24. The width of the guide groove 24 in the first direction (X direction in FIG. 9) may be a width that allows a medical instrument such as a scalpel to pass through, but is about 0.5 [mm] to about 2 [mm]. It should be.

With reference to FIG. 16, the cutting state of the nerve regeneration guiding tube 100 using the nerve regeneration guiding tube cutting device 2 will be described. FIG. 16 is a schematic view showing a cutting state of the nerve regeneration guiding tube 100 using the nerve regeneration guiding tube cutting device 2.

In cutting the nerve regeneration-inducing tube 100 using the nerve regeneration-inducing tube mounting groove 22 and the guide groove 24, the nerve regeneration-inducing tube 100 is placed in the nerve regeneration-inducing tube mounting groove 22. At this time, one end of the nerve regeneration induction tube 100 may be arranged so as to be in contact with the closed end 22b. When cutting the nerve regeneration guiding tube 100, as shown in FIG. 16, the scalpel 50 is moved along the guide groove 24 (in the direction of arrow C in FIG. 16) to a predetermined length in units of 1 [mm]. , The nerve regeneration induction tube 100 can be easily and quickly cut. In the nerve regeneration induction tube cutting device 2 of the present embodiment, the nerve regeneration induction tube 100 is not completely divided into two, but the nerve regeneration induction tube 100 is not completely divided into two, and a slit is inserted.

As shown in FIGS. 9 and 13, slits 29 are provided on the third side surface 26d located on the back surface side of the nerve regeneration guiding tube cutting device 1 at the same pitch as the guide groove 24, and further, 5 [mm]. ], 10 [mm], 15 [mm], 20 [mm], 25 [mm], 30, 35 [mm], 40 [mm] and 45 [mm] of the length indicating the length. A long marker slit 29a is provided. This makes it possible to easily determine the length to be cut.

(Embodiment 3)
The configuration of the nerve regeneration induction tube cutting device 3 in the present embodiment will be described with reference to FIGS. 17 to 23. 17 to 23 are an overall perspective view, a plan view, a bottom view, a front view, a rear view, a left side view, and a right side view of the nerve regeneration induction tube cutting device 3.

The nerve regeneration induction tube cutting device 3 is used when cutting the nerve regeneration induction tube 100 (see FIG. 24) to a predetermined length. The nerve regeneration guiding tube cutting device 3 is provided with a rectangular base member 30 extending in the first direction (X direction in FIG. 17) so as to be recessed from the surface 35 of the base member 30, and the nerve regeneration guiding tube 100 is placed therein. The nerve regeneration guiding tube mounting groove 32 and the nerve regeneration guiding tube mounting groove 32 extend in a second direction (Y direction in FIG. 17) orthogonal to the first extending direction, and the nerve regeneration guiding tube It is provided with a guide groove 34 that crosses the mounting groove 32 and guides the passage of the cutting tooth for cutting the nerve regeneration guiding tube 100.

A plurality of guide grooves 34 are provided along the first direction. In the nerve regeneration induction tube cutting device 3 of the present embodiment, nine guide grooves 34 are provided at a predetermined pitch.

The rectangular base member 30 has a surface 35 provided with a nerve regeneration guiding tube mounting groove 32 and a guide groove 34, a first side surface 36a located on the right side surface side, and a first side surface 36a located on the side opposite to the first side surface 36a. It has two side surfaces 36b, a third side surface 36c located on the front side, and a fourth side surface 36d located on the side opposite to the third side surface 36c.

Both ends of the nerve regeneration guiding tube mounting groove 32 have open ends 32a that open toward the second side surface 36b located on the opposite side of the first side surface 36a and the first side surface 36a of the base member 30.

With reference to FIG. 22, the groove shapes of the nerve regeneration guiding tube mounting groove 32 and the guide groove 34 will be described. The nerve regeneration guiding tube mounting groove 32 is provided so as to extend in the depth direction (X direction in FIG. 17) of the base member 30, and the bottom surface has a semicircular shape. One end and the other end of the guide groove 34 are located on the surface 35 of the base member 30, and have a shape recessed in the depth direction of the base member 30.

The depth d2 of the deepest portion P2 of the nerve regeneration guide tube mounting groove 32 is provided deeper than the depth d1 of the deepest portion P1 of the guide groove 34. The width of the guide groove 34 in the first direction (X direction in FIG. 17) may be a width that allows a medical instrument such as a scalpel to pass through, but is about 0.5 [mm] to about 2 [mm]. It should be.

With reference to FIG. 24, the cutting state of the nerve regeneration guiding tube 100 using the nerve regeneration guiding tube cutting device 3 will be described. FIG. 24 is a schematic view showing a cutting state of the nerve regeneration guiding tube 100 using the nerve regeneration guiding tube cutting device 3.

In cutting the nerve regeneration-inducing tube 100 using the nerve regeneration-inducing tube mounting groove 32 and the guide groove 34, the nerve regeneration-inducing tube 100 is placed in the nerve regeneration-inducing tube mounting groove 32. When cutting the nerve regeneration guiding tube 100, as shown in FIG. 24, the scalpel 50 is moved along the guide groove 34 (in the direction of arrow C in FIG. 24) to bring the nerve regeneration guiding tube 100 to a predetermined length. Can be easily and quickly cut. In the nerve regeneration induction tube cutting device 2 of the present embodiment, the nerve regeneration induction tube 100 is not completely divided into two, but the nerve regeneration induction tube 100 is not completely divided into two, and a slit is inserted.

It should be considered that each embodiment disclosed this time is exemplary in all respects and is not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1,2,3 Nerve regeneration induction tube cutting device, 100 nerve regeneration induction tube, 10,20,30 base member, 15,25,35 surface, 12,22,32 nerve regeneration induction tube mounting groove, 14,24 , 34 Guide groove, 16a, 26a, 36a 1st side surface, 16b, 26b, 36b 2nd side surface, 16c, 26c, 36c 3rd side surface, 16d, 26d, 36d 4th side surface, 12a, 22a, 32a open end, 12b , 22b Closed end.

Claims (7)

It is a nerve regeneration induction tube cutting device used when cutting a nerve regeneration induction tube to a predetermined length.
With the base member
A groove for placing the nerve regeneration-inducing tube, which extends in the first direction and is provided so as to be recessed from the surface of the base member and on which the nerve regeneration-inducing tube is placed.
To cut the nerve regeneration-inducing tube by extending in a second direction orthogonal to the first direction in which the nerve regeneration-inducing tube mounting groove extends, crossing the nerve regeneration-inducing tube mounting groove, and cutting the nerve regeneration-inducing tube. With a guide groove to guide the passage of the cutting teeth,
A plurality of guide grooves are provided along the first direction, and are a nerve regeneration guiding tube cutting device. One end of the groove for placing the nerve regeneration guiding tube is opened toward the first side surface of the base member.
The other end of the nerve regeneration guiding tube mounting groove is not open toward the second side surface located on the side opposite to the first side surface of the base member.
The nerve regeneration induction tube cutting device according to claim 1. Both ends of the nerve regeneration induction tube mounting groove are open toward the first side surface and the second side surface of the base member.
The nerve regeneration induction tube cutting device according to claim 1. One end and the other end of the guide groove are located on the surface of the base member.
The guide groove has a curved shape that is recessed in the depth direction of the base member.
The nerve regeneration induction tube cutting device according to any one of claims 1 to 3. One end of the guide groove is located on the surface of the base member.
The other end of the guide groove is open toward the third side surface of the base member.
The nerve regeneration induction tube cutting device according to any one of claims 1 to 3. The deepest part of the groove for placing the nerve regeneration guiding tube and the deepest part of the guide groove coincide with each other.
The nerve regeneration induction tube cutting device according to any one of claims 1 to 5. The deepest part of the groove for placing the nerve regeneration guiding tube is deeper than the deepest part of the guide groove.
The nerve regeneration induction tube cutting device according to any one of claims 1 to 5.

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