JP3200050B2 - Surgical suture stapler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical suture stapler, and more particularly to a surgical suture stapler for driving surgical staples used in skin suturing operations.
More particularly, the present invention relates to a surgical skin stapling stapler capable of suturing a mattress by staples.

[0002]

2. Description of the Related Art As a conventional surgical skin stapling stapler, for example, the one described in Japanese Patent Application Laid-Open No. 4-240443 is known. This is a medical stapler. When the lever is rotated in use, the ram advances downward by this rotation, and its forming projection comes into contact with the crown of the staple and starts forming on the staple. At this time, the crown is deformed into an upwardly convex bow shape with the both ends in the width direction of the anvil as fulcrums. Simultaneously with this deformation, a component force is generated in the staple according to the forming force by the ram and the inclination angle of the anvil, and this component force opposes the biasing force acting on the staple and cancels the biasing force. . In this case, the staples used had a substantially U-shape. Therefore, the stapler for driving the staple has an anvil (clincher) in the main body, and drives the staple toward the anvil.

[0003]

However, in such a conventional surgical skin stapling stapler, the skin is merely sewn at a certain depth. Therefore, precise suturing such as mattress suturing cannot be performed.
Mattress suturing is performed simultaneously with suturing near the epidermis and suturing beneath the skin, so that the appearance of all layers of skin can be adjusted.

[0004]

OBJECTS OF THE INVENTION It is an object of the present invention to perform mattress stitching with staples. Another object of the present invention is to provide a stapler for performing a mattress stitch.

[0005]

According to a first aspect of the present invention, there is provided a stapler body, and a holding means provided on the stapler body for holding a staple obtained by bending a wire having a circular cross section into a substantially elliptical shape at a predetermined position. And a suturing means for driving the staples held by the holding means into the skin tissue to close the staples.
The first and second claws protrude inward substantially along the above-mentioned elliptical shape, and the first claws and the second claws at each end have a predetermined interval. An anvil that abuts against an inner surface of a curved intermediate portion of the staple, and a pressing member that presses the staple against the anvil and urges each claw of the staple to bend inward. And a pressing member abuts against the curved outer surface of the positioned staple and urges each claw of the staple inward. It is.

According to a second aspect of the present invention, when the pressing member is pressed down, the anvil is pressed down, and the pressing member cooperates with the anvil at the lower limit position to bend each staple claw inward. 2. The surgical skin suture staple according to claim 1.

According to a third aspect of the present invention, there is provided a stapler body, holding means provided on the stapler body and holding a staple obtained by bending a wire having a circular cross section into a substantially elliptical shape at a predetermined position, and holding means by the holding means. A surgical suturing stapler having a suturing means for driving the staple into the skin tissue and closing the staple, wherein the staple has a first nail and a second nail each having both ends formed in two branches,
The first and second claws protrude inward substantially along the elliptical shape, and the first and second claws at each end face each other at a predetermined interval, and the first and second claws face each other. Staple supply means for supplying the staples to the means, the staple supply means includes a cartridge containing a plurality of staples so that the staples can be continuously supplied one by one. Is a surgical skin suture stapler provided with a stop plate for aligning and holding staples in a cartridge.

According to a fourth aspect of the present invention, the staple body has a cartridge case in which the cartridge is mounted, and a recess for accommodating staples is formed immediately below an opening of an opening end surface of the cartridge case. Item 3
2. The surgical skin suture stapler according to item 1.

The invention according to claim 5 is the surgical skin stapling stapler according to claim 4, wherein the cartridge is formed of transparent plastic.

According to a sixth aspect of the present invention, there is provided a stapler main body, holding means provided on the stapler main body, for holding a staple obtained by curving a wire rod in an arcuate shape at a predetermined position, and applying the staple held by the holding means to the skin. A surgical suturing stapler having a suturing means for driving into a tissue and closing the staple, wherein the staple has a first claw and a second claw, each having a bifurcated end. The second claw protrudes inward, the first claw at each end and the second claw oppose each other at a predetermined interval, and the stapler body includes a staple held by holding means from a tip thereof. 5 is a surgical skin suture stapler having a scale indicating a distance to a predetermined position.

According to a seventh aspect of the present invention, the stapler body has a guide projecting from the stapler body and indicating a center of the staple in the width direction. 1 is a surgical skin suture stapler.

The invention according to claim 8 is the surgical skin suture stapler according to claim 7, wherein the guide is buried in the skin tissue at the time of skin suturing.

According to the first and second aspects of the invention, the substantially elliptical staple is held at a predetermined position by the holding means. Then, the suturing means drives one staple held by the holding means into the skin tissue and closes it. That is, when the staple is pressed against the anvil by the pressing member, each claw of the staple is bent inward. By bringing the curved outer surface of the staple into contact with the concave portion having the circular groove of the pressing member, the staple is bent into a predetermined shape along the concave portion. In this case, the staple has a substantially elliptical shape as a whole, and has a forked first claw and a second claw at both ends thereof, and the first claw and the second claw at each end face inward. Are facing each other. Therefore, as a result of the staple being driven into the skin tissue and being closed, the deep portion of the skin tissue between the first nails (under the dermis) and the shallow portion of the second nails (near the epidermis) are each sutured. . That is, the skin tissue can be double-stitched (mattress-stitched).

According to the third aspect of the present invention, staples are continuously supplied from the cartridge to the holding means one by one. Therefore, this stapler can drive staples continuously. Further, since the cartridge is transparent, the remaining amount of staples can be easily determined. Therefore, staples do not occur, which is convenient in performing a treatment.

According to the sixth aspect of the present invention, the distance from the tip of the stapler body to the staple position can be known from the scale of the stapler body. Therefore, it becomes easy to suture the skin at equal intervals.

According to the seventh and eighth aspects of the present invention, the stapler body has a guide indicating the center of bending of the staple (the center in the width direction). Therefore, the region to be sutured can be accurately sutured using the guide as a guide. As a result, the skin tissue is mattressed as described above. In particular, when the guide is embedded in the skin tissue, the staple body can be positioned, and the treatment can be performed accurately.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a perspective view showing a stapler according to one embodiment. FIG. 1B is an exploded perspective view showing a stopper plate mounting portion of the stapler. FIG.
(C) is a rear view showing a stopper plate of the stapler. FIG. 2 is a side sectional view of the stapler according to one embodiment. FIG. 3A is a cross-sectional view illustrating a tip portion of the stapler according to one embodiment. FIG. 3B is a cross-sectional view showing the tip of the stapler body. FIG. 4 is a plan view showing a stapler according to one embodiment. FIG. 5 is a bottom view showing the stapler according to one embodiment. 6 (A),
(B) is a sectional view showing the positional relationship between the anvil and the pressing member of the stapler and the cartridge. FIG. 7A is a perspective view showing an anvil member according to one embodiment. FIG. 7B is a side view showing the anvil member according to one embodiment. FIG. 7C is a front view showing an anvil member according to one embodiment. FIG. 7D is a plan view showing an anvil member according to one embodiment. FIG. 8A is a perspective view illustrating a pressing member according to one embodiment. FIG. 8B is a side view illustrating the pressing member according to the embodiment.
FIG. 8C is a front view showing a pressing member according to one embodiment. FIG. 8D is a plan view showing a pressing member according to one embodiment. FIG. 8E is a cross-sectional view showing a concave portion of the pressing member according to one embodiment. FIG. 9 is a perspective view showing a mounting portion of the cartridge according to the embodiment and a concave portion for dropping the bent staple from the anvil to make it free. FIG. 10 is a front view showing a state where the bent staples are stored in the recesses. FIG. 11 is a side view showing a cartridge according to one embodiment. FIG. 12 is a plan view showing a cartridge according to one embodiment. FIG. 13 is a bottom view showing the cartridge according to one embodiment. FIG. 14A is a front view showing a cartridge according to one embodiment. FIG. 14B is a rear view illustrating the cartridge according to the embodiment. FIG. 15 is a side sectional view showing a cartridge according to one embodiment. FIG. 16 is a perspective view showing a firing port portion of a staple of a cartridge according to one embodiment. FIGS. 17A and 17B are cross-sectional views for explaining a firing state of staples according to one embodiment. FIGS. 18A and 18B are schematic diagrams for explaining the operation of the pressing member according to one embodiment. FIGS. 19A and 19B are schematic diagrams for explaining the pressing operation of the pressing member according to one embodiment. FIGS. 20A, 20B, and 20C are partial cross-sectional views showing a cartridge retaining structure according to an embodiment. FIG. 21 is a plan view showing a scale guide according to one embodiment. FIG. 22 is a diagram showing an under center guide according to one embodiment. FIG. 23 is a diagram for explaining a use state of the under center guide. FIG. 24 is a front view showing staples and bent staples according to one embodiment. FIG. 25 is a diagram for explaining a staple driving state according to one embodiment. FIG. 26 is a schematic view showing the tip of the staple remover according to one embodiment. FIG. 27 is a schematic diagram for explaining a use state of the remover according to one embodiment.

FIGS. 1 to 5 show a surgical skin stapling stapler according to this embodiment. As shown in these figures, a stapler 10 as a surgical instrument for suturing skin tissue includes a plastic long box-type stapler body 20 having an open upper side, and a handle 30 covering the upper surface of the stapler body 20. Have. Stapler body 2
0, a long box-shaped cartridge case 21
A cartridge 41 of a long box-type staple 40 is detachably mounted in the cartridge case 21. The side plate of the cartridge case 21 and the cartridge 41 are formed of transparent plastic so that the number of the remaining staples 40 can be seen (so that the staples 40 can be seen). Attached cartridge 41
Of the stopper plate 22 described below (see FIG. 3). FIG. 6B shows a side plate 41C of the cartridge 41 and a bottom plate 41D thereof. Further, a firing portion of the staple 40 is formed on the stapler body 20 at the longitudinal end side of the cartridge case 21. The firing portion has a stopper plate 22 that forms a gap at a predetermined interval from the tip of the cartridge case 21. In the gap between the stopper plate 22 and the cartridge case 21, as shown in FIGS. 3A, 3B and 6B, the upright stapler 10 is provided.
Two members are mounted so as to be able to reciprocate in the up-down direction. That is, the anvil member 23 is mounted on the stopper plate 22 side, and the pressing member 24 is mounted on the cartridge case 21 side so as to overlap each other. The stopper plate 22 forms a front side wall of the stapler main body 20. The top plate portion 22A at the upper end of the stopper plate 22 is provided detachably from the stapler body 20. That is, as shown in FIGS. 1 (B) and 1 (C), a groove 20J is formed at both ends at the top end corner of the stapler main body 20, and the projection 22J of the top plate portion 22A is formed in the groove 20J. Each is fitted.

The anvil member 23 has a flat plate shape, and an anvil 25 that is curved upward and protrudes from the lower end of the side surface on the cartridge case 21 side. The distance between the anvil 25 and the lower end of the anvil member 23, that is, the formation height position of the anvil 25 is about half the opening height of the cartridge case 21 in the state shown in FIG. In other words, it may be about half the height of the staple 40. Further, the thickness of each of the anvil member 23, the pressing member 24, and the anvil 25 is set to be slightly larger than the diameter of the staple 40. As shown in FIGS. 7A to 7D, the upper end of the anvil member 23 is bent and projected horizontally, and a rectangular hole 23B penetrating vertically is formed in the horizontal bent portion 23A. As shown in FIG. 7 (A), the anvil member 23 has swing prevention guides 23C and 23D protruding by a predetermined length on both sides in the width direction at a bent upper end portion and an intermediate height position. Each is formed. Further, a rectangular window 23E having a predetermined length is provided in the center of the anvil member 23, and a projection 24 of the pressing member 24 is provided.
D moves up and down in the window 23E. As shown in FIG. 8A, the flat pressing member 24 has an upper end bent horizontally like the anvil member 23.
The horizontal bending portion 24A of the pressing member 24 is
After passing through the third hole 23B, a wire spring 26 for urging the horizontal bent portion 24A and the horizontal bent portion 23A in a direction in which both are separated is interposed between the horizontal bent portion 24A and the horizontal bent portion 23A. The wire spring 26 is formed by extending both ends of a coil spring in a tangential direction and hooking the extended ends to the horizontal bent portions 23A and 24A.
The pressing member 24 is configured to be able to move in the up-down direction and to be protruded and retracted into a gap (slot) between the opening edge of the cartridge case 21 inside the anvil member 23. The lower end of the pressing member 24 has a concave portion 24 </ b> B that is curved downward and opened in a substantially U-shape. The recess 24B becomes a striker portion of the staple 40. This recess 24B
As shown in FIG. 8B, a concave groove is formed on the contact surface with the staple 40 in order to easily catch the staple 40 which is a round wire. Further, at an intermediate height position of the pressing member 24, a swing prevention guide 24C which is in contact with the upper end of the anvil member 23 is formed. These swing prevention guides 23C, 23D, and 24C slide in contact with the vertical grooves 22B formed on the inner surface of the side wall of the stapler body 20 when the two members 23, 24 move up and down, so that the anvil member 23 and the pressing member 24 swing back and forth. And rolling can be prevented. FIG. 3B shows these swing prevention guides 23C,
The lower limit positions of the vertical grooves 22B of 23D and 24C are shown. The vertical movement of the anvil member 23 and the pressing member 24 is regulated by a projection 24D moving in the window 23E. Further, the width α of the rectangular hole 23B is formed to be slightly shorter than the width of the horizontal bent portion 24A of the pressing member 24. FIG.
The width β of the main body of the anvil member 23 shown in FIG.
The length is substantially the same as that of the pressing member 24. The swing prevention guide portion 2 of the anvil member 23 shown in FIG.
The width γ of 3C is substantially the same length as the swing prevention guide 24C of the pressing member 24. The width of the window 23E is the protrusion 2
It is formed slightly larger than the width of 4D.

As shown in FIGS. 1 and 2, the lower end of the hanging portion (strike) 31 of the handle 30 is in contact with the upper surface of the horizontal bent portion 24A of the pressing member 24. Handle 3
0 is a pin 32 at one end of the stapler body 20 in the longitudinal direction.
Are provided so as to be swingable in a vertical plane (that is, the stapler body 20 can be freely opened and closed). In use, the movement of the handle 30 is restricted by the pair of small projections 20A so that the handle 30 does not deviate upward from the stapler 20. The other end of the handle 30 in the longitudinal direction, that is, the upper surface of the hanging portion 31 is curved upward and concavely so as to become the pressing portion 33 when the stapler body 20 is gripped. The pressing portion 33 is a plastic molded product. The horizontal bent portion 24A of the pressing member 24 with which the hanging portion 31 of the handle 30 abuts is urged upward by a leaf spring 34 as shown in FIGS. Specifically, one end of the leaf spring 34 is hung on the lower surface of the horizontal bent portion 24 </ b> A with the pin 35 at the middle portion in the length direction as a fulcrum, and the other end of the leaf spring 34 is hung on a hook pin 36 protruding from the inner surface of the side wall of the stapler body 20. Has been stopped.

FIGS. 1, 4 and 5 show the stapler main body 20, respectively. A center guide 51 having a triangular mark is provided on the front surface of the stapler body 20, that is, on the front surface of the lower end of the stopper plate 22. Center guide 51
May be formed protrusions or may be formed by sticking a seal. The center guide 51 indicates the center of the staple 40 of the mounted cartridge 41 in the width direction. Further, a claw-like guide 5 made of a transparent plastic projecting in a bifurcated shape is provided on the front lower end of the stopper plate 22.
2 are provided. The center of the U-shaped concave portion 52A of the claw-shaped guide 52 indicates the center of the staple 40 in the width direction, similarly to the center guide 51. A straight line L extending in the width direction is provided on the upper surface of the distal end portion of the pointed horizontal plate of the bifurcated claw guide 52, and this straight line L is spaced from the driving position of the staple 40 in the front-rear direction, that is, stitched by the staple 40. It is a measure of the interval. FIG. 21 shows these guides 51 and 52. The interval (sewing interval) between this straight line L and the staple firing position is, for example, 7 to 10
mm. As shown in FIGS. 3 (B), 6 (A) and 6 (B), the swing prevention guides 23C and 23D and the swing prevention guide 24C of the pressing member 24 projecting from both sides in the width direction of the anvil member 23 are formed by grooves. It is inserted into 22B and moves up and down.

As shown in FIGS. 9 and 10, a recess 27 is formed immediately below the opening on the open end face of the cartridge case 21 which is a staple emitting portion. The recess 27 has a substantially semicircular shape convex upward and has a curvature substantially equal to the curvature of the anvil 25, that is, after the staple 40 is pressed (after being closed).
Is shown. The depth of the recess 27 is slightly greater than the diameter of the closed staple 40. The lower surface 21G of the concave portion 27 is formed above the lower surface 21F (inclined surface) on both sides of the concave portion 27 of the cartridge case 21 by a predetermined height, and the lower surface 21G is, as shown in FIG. The second claw 40B is formed so as to be located below when the 40 is pressed and bent. That is, the pressing member 2
4 moves down and the staple 40 is bent by the concave portion 24B (after skin suture), and then the staple 40 is inserted into the concave portion 27.
Is moved to extract the anvil 25. FIGS. 17A and 17B show this state.

FIGS. 11 to 16 show the cartridge 41. FIG. The cartridge 41 is configured so that it can be attached to and detached from the cartridge case 21 from behind. The cartridge 41 has a box shape with a rectangular cross section, and its upper surface and side surfaces are formed of transparent plastic, and its lower surface is formed of metal. Reference numeral 55 denotes a pull-out claw protruding downward from the rear edge of the metal lower surface of the cartridge 41.
The cartridge 41 can be pulled out of the cartridge case 21 by gripping the pull-out claw 55. The cartridge 41 has a plurality of staples 40 packed therein. The staples 40 are urged forward from rearward by springs 53 via push plates 54. That is, the staple rows, which are formed in a row by closely contacting their side surfaces, are urged toward the front opening. At the opening of the cartridge 41, a stop plate 56 is
Attached via B. The stop plate 56 prevents the staple row from jumping forward. In addition,
The thickness of the stop plate 56 is the same as the diameter of the staple 40 and can be pushed downward by the pressing member 24. At the corner of the opening-side bottom wall of the cartridge 41, FIG.
4, a stopper 57 which is a metal pawl is formed as shown in FIG. The stopper 57 is provided on the push plate 54.
Is prevented from jumping forward.

FIGS. 20A, 20B, and 20C show a locking member 60 for fixing the cartridge 41 to the cartridge case 21. FIG. The hook portion at the tip end of the locking member 60 is locked in the bottom hole 61 of the cartridge 41 to fix the cartridge 41 to the cartridge case 21. By releasing the lock, the cartridge 41 can be removed. That is, the tip hook of the locking member 60 is removed from the bottom hole 61 of the cartridge case 21, and the cartridge 41 is inserted into the cartridge case 21 (B).
When the hook is inserted to the predetermined position, the tip hook is locked to the cartridge 41 via the bottom hole 61 and fixed (A). FIGS. 22A, 22B, and 22C show a second center guide 66 projecting downward from the lower end of the staple firing section (the front end of the cartridge case 21). The second center guide 66 is provided with a shaft 6 having a predetermined length.
6A, and a flat portion 66B formed at the lower end of the shaft portion 66A. As shown in FIG. 23, the flat portion 66B is inserted into a cut in the skin tissue to guide the suture position. The width of the flat portion 66B is, for example, 2 mm, and the height of the shaft portion 66A is, for example, 2 to 3 mm.
This is the case when suturing human skin tissue. The center guide 66 may be configured to be removable such as a screw type.

FIG. 24 shows the staple 40. The staple 40 is developed for performing mattress stitching, and is formed by bending a wire having a circular cross section, such as SUS or titanium, into an arc shape. Both ends of the wire are formed in a bifurcated shape, and a long first claw 40A and a short second claw 40A are formed.
Are formed respectively. Second nail 40
B stitches the shallow portion of the skin tissue at a time, and the first claws 40A stitch the deep portion thereof at a time. FIG. 25 illustrates the suturing operation using the staples 40. That is, the lower surface of the intermediate portion of the staple 40 is pressed against the anvil 25, and the concave portion 24B of the pressing member 24 presses the claw portions 40A, 40B at both ends thereof from the upper side, so that the first claw 40A and the second claw 40B are formed. They deform inward and close these claws. The second nail 40B is sewn to the epidermis, and the first nail 40A is sewn to the fat layer under the skin.

FIGS. 26 and 27 show the stapled staples 4.
0 shows the remover 70 withdrawn after healing of the skin tissue. The remover 70 has a bifurcated scissor shape, one of which is constituted by a forked forceps 71 having a tip, and the other is constituted by a forceps 72 for holding down the space between the two forks. The intermediate portion of the staple 40 is sandwiched between the forceps 71 and 72, and is pulled out.

Hereinafter, the staple 40 will be described in more detail. The staple 40 is formed by bending a wire having a circular cross section into a substantially elliptical shape, and has a forked first claw 40A and a second claw 40B at both ends of the wire as described above. The first claws 40A and the second claws 40B at each end face inward. In other words, a wire having a predetermined length is bent into an elliptical shape, and a pair of first claws 40A, which are sharp at both ends thereof, are placed closer to the center of the wire than the first claws in the longitudinal direction of the wire (the width direction of the entire staple). Each has a pair of pointed second claws 40B, and the first claws 40A
Projecting inward longer than the claw 40B. The shape of each nail is as follows. That is, as shown in FIG. 24, the first claw 40A has a cut surface 40AA formed on the outer side near the tip thereof. The cut surface 40AA may be formed as a flat surface, or may be processed into a square (outwardly projecting triangular cross section). The second claw 40B has its base (branch).
It is formed to be more smoothly tapered.
With these claw shapes, suturing can be easily performed even when the force applied to the staple 40 is small. FIG. 24A shows a state in which the staple 40 is stored in the cartridge 41 and is opened, and FIG. 24B shows a state in which the staple 40 is ejected from the cartridge 41 and the staple 40 is closed. Also, the cross section of the wire (excluding the claws) can be circular (having a diameter of about 0.5 mm). Further, the wire can be made of stainless steel, titanium or a titanium alloy. In FIG. 24A showing a state in which the staple 40 is opened, the ratio of the length of the curved portion A to the straight portion B on one side is about 2: 1. Also, for example, staple 4
The ratio of the width to the height of 0 is 2: 1 and the width is 8 to 10 m
m, its height can be 4-5 mm. In this case, for example, the length of the first claw 40A is 2.0 to 3.0 mm.
The second claw 40B is 1.5 to 2.0 mm shorter than the first claw 40A.

In the surgical skin stapling stapler 10 according to the above configuration, the cartridge 41 is mounted on the stapler main body 20, and the handle 30 is first depressed. As a result, the stop plate 56 is driven out of the cartridge 41, and the preparation of the stapler 10 for suturing is completed. Then, the under guide 66 is inserted into the inside of the cut portion of the epidermis of the affected part, and the center guide 52 is adjusted to the cut or the sewing position. In this state, the handle 30 is pushed down. The striker 31 pushes down the pressing member 24 and the anvil member 23 is pushed down via the wire spring 26. That is, from the position shown in FIG.
The pressing member 24 is pushed down to the lower limit position shown in FIG. 5, and the staple 40 is narrowed inward by the cooperation of the concave portion 24B and the anvil 25, and is bent into a substantially circular shape. As a result, as shown in FIG.
The two and the second claws 40B are closed together, and the skin tissue is sutured between the epidermis and the subcutaneous part (FIG. 25). In this way, the mattress suture of the affected skin is performed.

When the handle 30 is released, the pressing member 24 and the anvil member 23 are pushed up by the leaf spring 34 and the wire spring 26, and return to the initial position. And cartridge 4
From one, the next staples 40 are supplied one by one to the anvil position. In this case, the position of the affected part is determined using the straight line L as a scale, and the next suturing position can be determined and the suturing can be performed. In the above case, the sewing position can be accurately sewn by the center guide 52 and the under guide 66.

By attaching and detaching the cartridge 41, the stapler 10 can be used continuously. In addition, the handle 30 can be opened to wash and disinfect the inside of the stapler body 20 with water. Further, a magnet may be fixed to the hammer portion 31 of the handle 30, and the handle 30 may be fixed to the pressing member 24 via the magnet.

[0030]

According to the present invention, a mattress stitch can be performed using staples. In other words, the affected part surface can be sutured cleanly. Further, the time required for the mattress stitching operation can be reduced. Since the staples have a substantially elliptical shape, the pressing force can be reduced, and when the staples are closed, they have a substantially circular shape. Therefore, the pressure applied to all layers of the skin is uniform, and the staples are gentle to skin tissue.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a stapler according to one embodiment of the present invention.

FIG. 2 is a side sectional view of a stapler according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a tip portion of the stapler according to one embodiment of the present invention.

FIG. 4 is a plan view showing a stapler according to one embodiment of the present invention.

FIG. 5 is a bottom view showing the stapler according to one embodiment of the present invention.

FIG. 6 is a bottom view showing a firing port portion of the stapler according to one embodiment of the present invention.

FIG. 7 is a perspective view showing an anvil member according to an embodiment of the present invention.

FIG. 8 is a perspective view showing a pressing member according to one embodiment of the present invention.

FIG. 9 is a perspective view showing a mounting portion of the cartridge according to the embodiment of the present invention and a recess into which bent staples fall.

FIG. 10 is a front view showing a state where a bent staple according to one embodiment of the present invention is accommodated in a recess.

FIG. 11 is a side view showing a cartridge according to one embodiment of the present invention.

FIG. 12 is a plan view showing a cartridge according to an embodiment of the present invention.

FIG. 13 is a bottom view showing the cartridge according to the embodiment of the present invention.

FIG. 14 is a front view showing a cartridge according to an embodiment of the present invention.

FIG. 15 is a side sectional view showing a cartridge according to an embodiment of the present invention.

FIG. 16 is a perspective view showing a firing port portion of a staple of the cartridge according to one embodiment of the present invention.

FIG. 17 is a cross-sectional view for explaining a firing state of staples according to one embodiment of the present invention.

FIG. 18 is a schematic diagram for explaining the operation of the pressing member according to one embodiment of the present invention.

FIG. 19 is a schematic diagram for explaining the operation of the pressing member according to one embodiment of the present invention.

FIG. 20 is a schematic diagram showing a cartridge retaining structure according to an embodiment of the present invention.

FIG. 21 is a plan view showing a scale guide according to one embodiment of the present invention.

FIG. 22 is a diagram showing an under center guide according to one embodiment of the present invention.

FIG. 23 is a diagram for explaining a use state of the under center guide according to one embodiment of the present invention.

FIG. 24 is a front view showing a staple according to an embodiment of the present invention.

FIG. 25 is a schematic diagram illustrating a use state of a staple according to an embodiment of the present invention.

FIG. 26 is a schematic view showing the tip of a staple remover according to an embodiment of the present invention.

FIG. 27 is a schematic diagram for explaining a use state of the remover according to one embodiment of the present invention.

[Explanation of symbols]

10 surgical skin suture stapler, 20 stapler body, 30 handle 40 staple.

Continuation of front page (56) References JP-A-61-106143 (JP, A) JP-A-5-3879 (JP, A) US Pat. No. 4,994,063 (US, A) US Pat. No. 4,610,251 (US, A) US Pat. (US, A) US Pat. No. 4,877,756 (US, A) US Pat. No. 4,583,670 (US, A) US Pat. No. 5,083,956 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 17/03- 17/12

Claims (8)

(57) [Claims] 1. A stapler body and the stapler body
Is provided, and a wire having a circular cross section is curved into a substantially elliptical shape.
Holding means for holding staples in a predetermined position, and holding means
The staples held by the
Surgical stapling stapler provided with a suturing means.
What, first pawl the staple has both ends formed into two, the
Have two claws each, and these first and second claws are
Protruding inward substantially along the above elliptical shape,
The first claws and the second claws face each other at a predetermined interval.
And the suturing means is provided within the curved intermediate portion of the staple.
Press the staple against the anvil and the anvil
And bend each staple claw inward
And a pressing member for urging the pressing member so that
Make contact with the curved outer surface of the staple
The cross section is semicircular, urging each nail of the pull inward.
A surgical skin suture stapler having a recess comprising a groove. 2. When the pressing member is pushed down,
The anvil is pushed down, and the pressing member is moved to the lower limit position.
With the anvil to bend each staple claw inward
The surgical skin suture staple according to claim 1. 3. A stapler body and the stapler body
Is provided, and a wire having a circular cross section is curved into a substantially elliptical shape.
Holding means for holding staples in a predetermined position, and holding means
The staples held by the
Surgical stapling stapler provided with a suturing means.
What, first pawl the staple has both ends formed into two, the
Have two claws each, and these first and second claws are
Protruding inward substantially along the above elliptical shape,
The first claws and the second claws face each other at a predetermined interval.
And a staple supply for supplying the staples to the holding means.
Staple supply means, one by one
Car with multiple staples installed so that it can be supplied
With a cartridge, the staple supply side of this cartridge
At the open end of the staple, keep the staples aligned in the cartridge.
Stop plate disposed has an outer dermatological skin closure scan for lifting
The stapler. 4. The staple main body includes the cartridge.
This cartridge has a cartridge case
Staples are placed just below the opening end face of the ridge case.
4. The surgical skin suture of claim 3, wherein the recess is formed.
Stapler. 5. The cartridge is made of transparent plastic.
5. The surgical skin suture stap according to claim 4, wherein the tape is formed by:
La. 6. A stapler body and the stapler body
The staples are provided in
Holding means for holding in position, and holding means
Suturing staples into skin tissue and closing
1. A surgical skin stapling stapler comprising: a staple having two ends formed into two forks;
Have two claws each, and these first and second claws are
A first claw at each end, a second claw protruding inward
The stapler body is held by holding means from the tip thereof while facing each other at a predetermined interval.
Scale indicating the distance of the staples
Surgical skin suture stapler. 7. The stapler body further includes a stapler body.
Protrudes from the body and indicates the center of the staple in the width direction
A guide according to any one of claims 1 to 6 having a guide.
Surgical skin suture stapler. 8. The guide is embedded in skin tissue at the time of skin suturing.
The surgical skin suture stapler according to claim 7, which is submerged.