CN217118483U - Nail head connecting structure and medical anastomat - Google Patents

Abstract

The utility model provides a pin fin portion connection structure and medical anastomat, pin fin portion connection structure is used for connecting the pin fin portion of medical anastomat. The nail head connecting structure comprises a connecting piece and a nail box shell, the connecting piece comprises a first connecting portion and a second connecting portion, the first connecting portion is located on the near-end side of the second connecting portion, the first connecting portion of the connecting piece is rotatably connected to the far-end side of the nail box shell through a first pin, and the second connecting portion of the connecting piece is connected with the near-end side of the nail head. The utility model discloses a first connecting portion pivot connection of connection piece is in nail casket shell, can realize the pin fin for the bigger degree of freedom of nail casket shell, can obtain bigger yaw angle.

Description

Nail head connecting structure and medical anastomat

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to pin fin portion connection structure and medical anastomat.

Background

The medical anastomat generally comprises an anastomat body and a nail head, wherein a nail box shell is arranged on the far-end side of the anastomat body, the far-end side of the nail box shell is connected to the nail head through a connecting piece, a firing rod extending along the axial direction of the nail box shell is arranged inside the nail box shell, and the far-end side of the firing rod extends through the connecting piece and then enters the nail head. When the anastomat is fired, the firing handle arranged on the body is operated to drive the firing rod to move towards the far end side of the anastomat, and under the driving of the firing rod, the nail head can cut and sew tissues.

In the prior art, in order to achieve a greater operating angle, the head can be arranged so as to be pivotable relative to the magazine housing. The far end side of the existing connecting piece is rotatably connected with the near end side of the nail head, the near end side of the existing connecting piece is fixedly connected with the nail box shell, when the nail head swings relative to the nail box shell, the nail head rotates relative to the connecting piece, however, the connecting piece and the nail box shell form a non-rotatable connection, and certain limitation is formed on the swinging of the nail head.

The utility model discloses in, distal end side and near-end side are for the operator, and the one end that is nearer apart from the operator is near-end side, and the one end far away apart from the operator, the one end that is more close to the operation position promptly is the distal end side.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, an object of the utility model is to provide a pin fin connection structure and medical anastomat, through the first connecting portion pivotal connection of connection piece in nail casket shell, can realize the pin fin for the bigger degree of freedom of nail casket shell, can obtain bigger yaw angle.

An embodiment of the utility model provides a pin fin connection structure for connect the pin fin of medical anastomat, pin fin connection structure includes connection piece and nail casket shell, the connection piece includes first connecting portion and second connecting portion, first connecting portion are located the near-end side of second connecting portion, the first connecting portion of connection piece through first round pin post rotatably connect in the distal end side of nail casket shell, the second connecting portion of connection piece with the near-end side of pin fin is connected.

In some embodiments, the distal side of the magazine housing is provided with a first mounting slot communicating to the distal face of the magazine housing, and the first coupling portion of the coupling tab enters at least partially into the first mounting slot and is rotatably coupled to a surface of the first mounting slot by the pin.

In some embodiments, a surface of the first connecting portion of the connecting piece opposite to the proximal end face of the first mounting groove is an arc-shaped surface.

In some embodiments, a proximal side of the first mounting groove is provided with an arc-shaped opening having a shape adapted to a shape of the arc-shaped surface of the first connecting portion.

In some embodiments, a side surface of the magazine housing facing the first connecting portion is provided with a first matching portion, a side surface of the first connecting portion facing the magazine housing is provided with a second matching portion, the first matching portion and the second matching portion form an embedding fit, and the first matching portion guides the second matching portion to move along an arc track with the first pin as a center.

In some embodiments, the first mating portion is an arc-shaped groove disposed on a surface of the magazine housing, and the arc-shaped groove is centered on the first pin, and the second mating portion is a protrusion disposed on a surface of the first connecting portion, and the protrusion at least partially enters the arc-shaped groove; alternatively, the first and second liquid crystal display panels may be,

the first matching part is an arc-shaped bulge arranged on the surface of the nail box shell, the arc shape takes the first pin column as the center of a circle, the second matching part is a groove arranged on the surface of the first connecting part, and at least part of the arc-shaped bulge enters the groove.

In some embodiments, the first connecting portion includes a circular ring portion surrounding the first pin and a straight rod portion located at a distal end side of the circular ring portion, and the second mating portion is disposed at a side surface of the straight rod portion facing the magazine housing.

In some embodiments, the first pin is fixed to a surface of the magazine housing, the first connection portion of the connection piece is provided with a first pin hole into which the first pin at least partially enters and is rotatable; alternatively, the first and second electrodes may be,

the first pin column is fixed on the first connecting portion, a third pin hole is formed in the surface of the nail box shell, and the first pin column at least partially enters the first pin hole and can rotate in the third pin hole.

In some embodiments, the first connecting portion of the connecting piece is provided with a first pin hole, the surface of the magazine housing is provided with a third pin hole, and a first pin is inserted through the first pin hole and the third pin hole and can rotate in the first pin hole and the third pin hole.

In some embodiments, the nail box further comprises a sleeve, the sleeve is sleeved outside the nail box shell, the sleeve is provided with a fourth pin hole, and the first pin is arranged through the first pin hole, the third pin hole and the fourth pin hole and can rotate relative to the first pin hole, the third pin hole and the fourth pin hole.

In some embodiments, the nail box further comprises a sleeve, the sleeve is sleeved outside the nail box shell, the top surface of the first pin is an arc top surface, and the arc top surface is adapted to the shape of the inner surface of the sleeve.

In some embodiments, the nail magazine further comprises a sleeve, the sleeve is sleeved outside the nail magazine housing, and an elastic member is arranged between a side surface of the first connecting portion, which faces away from the nail magazine housing, and an inner surface of the sleeve.

In some embodiments, the second connecting portion of the connecting piece is rotatably connected to the stud portion by a second pin;

the second pin column is fixed on the surface of the nail head, the second connecting part is provided with a second pin hole, and at least part of the second pin column enters the second pin hole and can rotate in the second pin hole; or the second pin column is fixed on the second connecting part, a fifth pin hole is formed in the surface of the nail head, and at least part of the second pin column enters the fifth pin hole and can rotate in the fifth pin hole.

The embodiment of the utility model provides a medical anastomat is still provided, including foretell pin fin portion connection structure.

The utility model provides a pin fin portion connection structure and medical anastomat have following advantage:

the utility model provides a nail head connection structure for medical anastomat reaches medical anastomat including this nail head connection structure, nail head connection structure including connect in the connection piece and the nail casket shell of the near-end side of nail head, and the first connecting portion pivotal connection of connection piece is in nail casket shell, and when the nail head swung for the nail casket shell, the connection piece also can be rotatory for the nail casket shell, can realize the nail head for the bigger degree of freedom of nail casket shell for the swing of nail head is more smooth and easy, and can obtain bigger yaw angle.

Drawings

Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

FIG. 1 is a schematic view of the engagement of a head and a sleeve of a first embodiment of the invention;

FIG. 2 is a left side view of the connection tab, sleeve and magazine housing combination of the first embodiment of the invention;

FIG. 3 is a schematic view of the structure of the first embodiment of the present invention showing the connection piece engaged with the nail head and the nail box housing;

FIG. 4 is an exploded view of the connection tab in cooperation with the head and magazine housing of the first embodiment of the present invention;

FIG. 5 is a top view of the first embodiment of the present invention showing the engagement of the connecting tab with the head and the magazine housing;

FIG. 6 is a top view of a second embodiment of the invention with the coupling tab engaged with the head and the magazine housing;

FIG. 7 is a top plan view of the head and magazine housing of a second embodiment of the invention;

fig. 8 is a bottom view of a connecting piece according to a second embodiment of the present invention;

FIG. 9 is a left side view of the third embodiment of the present invention showing the engagement of the sleeve with the magazine housing;

FIG. 10 is a left side elevational view of the magazine housing illustrating a second embodiment of the present invention;

FIG. 11 is a left side view of the third embodiment of the present invention showing the engagement of the connecting strip and sleeve with the magazine housing;

fig. 12 is an enlarged view of fig. 11 at the dashed line box.

Reference numerals:

1 first fitting part of magazine holder 53

11 fixed cover 6 connecting sheet

12 second pin 61 first connection

13 second mounting groove 611 circular ring part

3 straight rod part of swing pull rod 612

4 sleeve 62 second connection

5 first pin hole of nail box outer casing 63

51 first mounting groove 64 second pin hole

511 arc opening 65 second mating portion

52 first pin 7 spring

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

The utility model provides a pin fin portion connection structure and medical anastomat comprising the same. The medical stapler comprises a stapler body and a staple head located at the distal side of the stapler body. The stapler body includes an instrument platform and a firing handle rotatably coupled to the instrument platform. The nail head connecting structure is used for connecting the nail head of the medical anastomat to the instrument platform of the anastomat body. The nail head connecting structure comprises a connecting piece and a nail box shell, the connecting piece comprises a first connecting portion and a second connecting portion, the first connecting portion is located on the near-end side of the second connecting portion, and the near-end side of the nail box shell is connected to the instrument platform of the anastomat body. The first connecting portion of the connecting piece is rotatably connected to the far-end side of the nail box shell through the first pin column, the second connecting portion of the connecting piece is connected with the near-end side of the nail head, when the nail head swings relative to the nail box shell, the connecting piece can also rotate relative to the nail box shell, and therefore the nail head can have a larger degree of freedom relative to the nail box shell, the nail head can swing more smoothly, and a larger swing angle can be obtained.

The structure of the nail head connecting structure according to various embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the embodiments are not intended to limit the scope of the present invention.

Fig. 1 to 5 show a nail head connecting structure according to a first embodiment of the present invention. Fig. 1 to 3 are schematic views illustrating the cooperation between the nail head connecting structure and the nail head according to the first embodiment of the present invention. In this embodiment, the nail head comprises a cartridge assembly and an anvil which are oppositely arranged, and the cartridge assembly comprises a cartridge for accommodating staples and a cartridge rack 1 for accommodating the cartridge. The nail head connecting structure comprises a connecting sheet 6 and a nail box shell 5, the connecting sheet 6 comprises a first connecting portion 61 and a second connecting portion 62, the first connecting portion 61 is located on the near end side of the second connecting portion 62, the first connecting portion 61 of the connecting sheet 6 is rotatably connected to the far end side of the nail box shell 5 through a first pin column 52, the second connecting portion 62 of the connecting sheet 6 is connected with the near end side of the nail bin frame 1, when the nail head swings relative to the nail box shell 5, the connecting sheet 6 can also rotate relative to the nail box shell 5, and the larger degree of freedom of the nail head relative to the nail box shell 5 can be realized, so that the swing of the nail head is smoother, and a larger swing angle can be obtained. Further, in this embodiment, the second connecting portion 62 is rotatably connected to the proximal side of the head portion by a second pin 12. When the nail head swings relative to the nail box shell 5, the connecting sheet 6 and the nail head and the connecting sheet 6 and the nail box shell 5 can rotate relatively, and the nail head can further achieve greater freedom degree relative to the nail box shell 5, so that the nail head swings more smoothly, and a greater swing angle can be obtained.

The utility model discloses in, distal end side and near-end side are for the operator, and the one end that is nearer apart from the operator is near-end side, and the one end far away apart from the operator, the one end that is more close to the operation position promptly is the distal end side, follows the direction in the axle center of anastomat is the axial, and the direction from the distal end side of anastomat to near-end side promptly, or from the near-end side of anastomat to the direction of distal end side. For example, in the perspective of fig. 1, the distal side is the left side and the proximal side is the right side for cartridge holder 11. The direction S1 in fig. 1 is the distal-to-proximal direction. The direction S1 or the direction opposite to the direction S1 is defined as the axial direction of the stapler. In the present invention, for a component, the inner side and the outer side are relative to the axis of the stapler, and the side close to the axis is the inner side, and the side far away from the axis is the outer side.

As shown in fig. 1 and 2, in this embodiment, the nail head connecting structure further includes a sleeve 4 disposed outside the magazine housing 5, the first connecting portion 61 of the connecting piece 6 at least partially enters the inside of the sleeve 4, and the first pin 52 enters the inside of the sleeve 4, the nail head connecting structure includes two connecting pieces 6, the two connecting pieces 6 are the same as the connecting structure of the magazine housing 5, and the connecting piece 6 above the view angle in the drawing is taken as an example for explanation. In other alternative embodiments, the number and position of the connecting pieces 6 can be selected as desired, and are not limited to those shown in the figures. As shown in fig. 3 to 5, the distal end side of the magazine housing 5 is provided with a first mounting groove 51, the first mounting groove 51 is communicated to the distal end surface of the magazine housing 5, and a first connecting portion 61 of the connecting piece 6 at least partially enters the first mounting groove 51 and is rotatably connected to the surface of the first mounting groove 51 by the pin. The surface of the first mounting groove 51 is preferably a flat surface, and a side surface of the first connecting portion 61 facing the magazine case 5 is fitted to the surface of the first mounting groove 51. The proximal side of the nail bin holder 1 comprises a fixing sleeve 11, a second mounting groove 13 is formed in the surface of the fixing sleeve 11, the second mounting groove 13 is communicated with the proximal end surface of the fixing sleeve 11, and the second connecting part 62 of the connecting piece 6 at least partially enters the second mounting groove 13.

As shown in fig. 4 and 5, the proximal end of the magazine holder 1 is connected to a rocker 3, by means of which axial movement of the rocker 3 the head of the nail can be pivoted relative to the magazine housing 5. The surface of the connecting piece 6 opposite to the proximal end surface of the first mounting groove 51 is an arc surface, so that when the connecting piece 6 rotates, the matching surface between the connecting piece 6 and the proximal end surface of the first mounting groove 51 is an arc surface, that is, the outer contour of the proximal end portion of the connecting piece 6 is an arc surface, the rotation movement is smoother, specifically, the first connecting portion 61 of the connecting piece 6 comprises a circular ring portion 611 surrounding the first pin 52 and a straight rod portion 612 located at the distal end side of the circular ring portion 611, and at least part of the arc surface of the circular ring portion 611 is opposite to the proximal end surface of the first mounting groove 51. Further, an arc opening 511 is arranged on the proximal side of the first mounting groove 51, the shape of the arc opening 511 is adapted to the shape of the arc surface of the first connecting portion 61, the annular portion 611 of the first connecting portion 61 at least enters the arc opening 511, and when the first connecting portion 61 rotates relative to the magazine housing 5, the arc surface of the first connecting portion 61 is matched with the surface of the arc opening 511, so that the rotation of the first connecting portion 61 is smoother, and the magazine housing 5 is prevented from blocking the rotation of the connecting piece 6. Meanwhile, since both sides of the arc opening 511 are extended toward the distal side direction, both sides of the arc opening 511 can still be matched with the inner side surface of the bushing 4, and by providing the arc opening 511, the first mounting groove 51 also leaves a sufficient space for the rotational movement of the first connection portion 61 of the connection piece 6.

In this embodiment, as shown in fig. 3 to 5, the first pin 52 is fixed on the surface of the first mounting groove 51, the first connecting portion 61 of the connecting piece 6 is provided with a first pin hole 63, the first pin 52 at least partially enters the first pin hole 63 and can rotate in the first pin hole 63, and the first pin hole 63 can be a blind hole or a through hole. The first pin 52 may be integrally formed with the magazine housing 5, or may be formed separately from the magazine housing 5 and fixedly connected thereto. In another alternative embodiment, a first pin may be fixedly disposed on the first connecting portion 61, a third pin hole may be disposed on a surface of the first mounting groove 51, the third pin hole may be a blind hole or a through hole, the first pin at least partially enters the third pin hole and is rotatable in the third pin hole, and the first pin may be integrally formed with the connecting plate, or may be a single pin fixedly disposed in the first connecting portion. In yet another alternative embodiment, a single first pin may be provided, a first pin hole is provided in the first connecting portion 61, a second pin hole is provided in the magazine case 5, and the first pin is inserted into the first pin hole and the third pin hole and is rotatable in the first pin hole and the third pin hole. Further, a fourth pin hole may be provided in the sleeve 4, and the first pin is inserted into the first pin hole, the third pin hole, and the fourth pin hole, and is rotatable with respect to the first pin hole, the third pin hole, and the fourth pin hole.

In this embodiment, the second pin 12 is fixed on the surface of the second mounting groove 13 of the magazine frame 1, the second connecting portion 62 is provided with a second pin hole 64, and the second pin 12 at least partially enters the second pin hole 64 and is rotatable in the second pin hole 64. In yet another alternative embodiment, a second pin may be fixedly disposed on the second connecting portion 62, and a fifth pin hole is disposed on the surface of the fixing sleeve 11 of the magazine rack 1, and the second pin at least partially enters the fifth pin hole and can rotate in the fifth pin hole. The second pin can be formed integrally with the second connecting portion 62, or integrally with the sleeve 11, or be a separate pin. In yet another alternative embodiment, a fifth pin hole may be disposed on the surface of the fixing sleeve 11 of the magazine rack 1, a second pin hole is disposed on the second connecting portion 62 of the connecting plate 6, and a second pin is disposed through the second pin hole and the fifth pin hole and is rotatable relative to the second pin hole and the fifth pin hole.

Fig. 5 to 7 are schematic views illustrating the engagement between the nail head connecting structure and the nail head according to the second embodiment of the present invention. This embodiment differs from the first embodiment in that: in the second embodiment, a side surface of the magazine housing 5 facing the first connecting portion 61 is provided with a first matching portion 53, a side surface of the first connecting portion 61 facing the magazine housing 5 is provided with a second matching portion 65, the first matching portion 53 and the second matching portion 65 form a fitting fit, and the first matching portion 53 guides the second matching portion 65 to move along an arc track with the first pin 52 as a center. The other structure of the second embodiment is the same as that of the first embodiment.

As shown in fig. 5 to 7, in the second embodiment, the first engaging portion 53 and the second engaging portion 65 are engaged with each other to guide the rotation of the connecting piece 6 relative to the magazine case 5, thereby achieving better stability. In this embodiment, the first engaging portion 53 is an arc-shaped protrusion disposed on the surface of the first mounting groove 51, and the arc-shaped protrusion is centered on the first pin 52, the second engaging portion 65 is a groove disposed on the surface of the first connecting portion 61, the arc-shaped protrusion at least partially enters the groove, and when the first connecting portion 61 rotates around the first pin 52, the groove of the first connecting portion 61 moves along the extending direction of the arc-shaped protrusion, so as to form an arc-shaped moving track. The circular arc-shaped bulge can also properly fill a gap between the surface of the first mounting groove 51 and the inner surface of the sleeve 4, so that the matching stability of the nail box shell 5 and the sleeve 4 is improved, and the connecting sheet 6 is prevented from being accidentally separated from the nail box shell 5 or dislocated in the moving process. Preferably, the height of the circular arc protrusion may be set to be the same as the height of the surface of the magazine case 5 where the first mounting groove 51 is not provided, that is, the height is high at a position close to the shaft center and the height is smaller at a position farther from the shaft center. In this embodiment, the second matching portion 65 is disposed on a side surface of the straight rod portion 612 facing the magazine housing 5, but the present invention is not limited thereto, and the second matching portion 65 may be disposed at other positions of the first connecting portion 61 as required.

In another alternative embodiment, the first matching portion may be an arc-shaped groove disposed on the surface of the magazine housing 5, and the arc-shaped groove takes the first pin 52 as a center, and the second matching portion is a protrusion disposed on the surface of the first connecting portion 61, and the protrusion at least partially enters the arc-shaped groove, which can also improve the stability of the movement of the connecting piece 6 and prevent the connecting piece 6 from accidentally disengaging from the magazine housing 5 or being misplaced during the movement. When the first connecting portion 61 moves, the protrusion moves along the extending direction of the arc-shaped groove to form an arc-shaped moving track.

Fig. 9 and 10 are schematic views showing the engagement of the sleeve 4 and the magazine case 5 in the nail head connecting structure according to the third embodiment of the present invention. Only a portion of the magazine housing 5 located above is shown in fig. 9 and 10. The third embodiment differs from the first embodiment in that: the top surface of the first pin 52 is a circular arc top surface, and the circular arc top surface is adapted to the shape of the inner surface of the casing 4. Preferably, the height of the circular arc top surface is the same as the surface height of the magazine housing 5 at the position where the first mounting groove 51 is not provided, so as to achieve a closer fit of the first pin 52 with the sleeve 4. The other structure of the third embodiment is the same as that of the first embodiment, and the first pin 52 of the third embodiment may be combined with the first fitting portion 53 and the second fitting portion 65 of the second embodiment.

Fig. 11 and 12 are left side views of a nail head connecting structure according to a fourth embodiment of the present invention. The fourth embodiment differs from the first embodiment in that: an elastic element 7 is arranged between a side surface of the first connecting part 61 facing away from the magazine housing 5 and the inner surface of the sleeve 4. The elastic element 7 can be a spring, a spring plate, an elastic pad, etc. By providing the elastic member 7, the position of the first connecting portion 61 of the connecting piece 6 can be better maintained, and the first connecting portion 61 is prevented from being accidentally separated from or dislocated with the magazine housing 5 when moving relative to the magazine housing 5, and because the elastic member 7 has elasticity, when the first connecting portion 61 rotates relative to the magazine housing 5, the elastic member 7 can also be elastically deformed in response to the movement of the first connecting portion 61, and the rotation of the first connecting portion 61 is not hindered. The other structure of the fourth embodiment is the same as that of the first embodiment, and the elastic member 7 of the fourth embodiment may be combined with the first and second fitting portions 53 and 65 of the second embodiment, or the first pin 52 of the third embodiment.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (14)

1. The nail head connecting structure is characterized by being used for connecting a nail head of a medical anastomat and comprising a connecting piece and a nail box shell, wherein the connecting piece comprises a first connecting portion and a second connecting portion, the first connecting portion is located on the near-end side of the second connecting portion, the first connecting portion of the connecting piece is rotatably connected to the far-end side of the nail box shell through a first pin, and the second connecting portion of the connecting piece is connected with the near-end side of the nail head.

2. A nail head connection according to claim 1, wherein a distal side of the magazine housing is provided with a first mounting slot communicating to a distal face of the magazine housing, the first coupling portion of the coupling tab entering at least partially into the first mounting slot and being rotatably coupled to a surface of the first mounting slot by the pin.

3. A stud connection according to claim 2, in which the surface of the first connection portion of the connecting tab opposite the proximal face of the first mounting slot is an arcuate surface.

4. A stud connection according to claim 3, in which the proximal side of the first mounting slot is provided with an arcuate opening, the shape of which conforms to the shape of the arcuate surface of the first connection.

5. The nail head connecting structure according to claim 2, wherein a side surface of the magazine housing facing the first connecting portion is provided with a first engaging portion, a side surface of the first connecting portion facing the magazine housing is provided with a second engaging portion, the first engaging portion and the second engaging portion form an interference fit, and the first engaging portion guides the second engaging portion to move along an arc locus centered on the first pin.

6. The nail head connection according to claim 5, wherein the first engagement portion is an arc-shaped recess provided in a surface of the magazine housing, the arc being centered on the first pin, and the second engagement portion is a projection provided in a surface of the first connection portion, the projection at least partially entering the arc-shaped recess; alternatively, the first and second electrodes may be,

the first matching part is an arc-shaped bulge arranged on the surface of the nail box shell, the arc shape takes the first pin column as the center of a circle, the second matching part is a groove arranged on the surface of the first connecting part, and at least part of the arc-shaped bulge enters the groove.

7. A nail head connection according to claim 5, wherein the first connection portion comprises a circular ring portion surrounding the first pin and a straight shank portion at a distal side of the circular ring portion, the second engagement portion being provided at a side surface of the straight shank portion facing the magazine housing.

8. A stud connection according to claim 1, in which the first pin is fixed to a surface of the magazine housing, the first connection portion of the connecting plate being provided with a first pin aperture into which the first pin at least partially enters and is rotatable; alternatively, the first and second electrodes may be,

the first pin column is fixed on the first connecting portion, a third pin hole is formed in the surface of the nail box shell, and the first pin column at least partially enters the first pin hole and can rotate in the third pin hole.

9. A nail head connection according to claim 1, wherein the first connection portion of the connection piece is provided with a first pin hole, the surface of the magazine housing is provided with a third pin hole, and a first pin is inserted through and rotatable in the first pin hole and the third pin hole.

10. A nail head connection according to claim 9, further comprising a sleeve, the sleeve being disposed outside the magazine housing, the sleeve being provided with a fourth pin hole, the first pin being disposed through the first pin hole, the third pin hole and the fourth pin hole and being rotatable with respect to the first pin hole, the third pin hole and the fourth pin hole.

11. The stud connection according to claim 1, further comprising a sleeve, the sleeve being disposed outside the magazine housing, the top surface of the first stud being a radiused top surface, and the radiused top surface conforming to the shape of the inner surface of the sleeve.

12. The stud connection according to claim 1, further comprising a sleeve, the sleeve being disposed around the exterior of the magazine housing, and an elastic member being disposed between a side surface of the first connection portion facing away from the magazine housing and an inner surface of the sleeve.

13. A stud connection according to claim 1, in which the second connection of the connecting tab is rotatably connected to the stud by a second pin;

the second pin column is fixed on the surface of the nail head, the second connecting part is provided with a second pin hole, and at least part of the second pin column enters the second pin hole and can rotate in the second pin hole; or the second pin column is fixed on the second connecting part, a fifth pin hole is formed in the surface of the nail head, and at least part of the second pin column enters the fifth pin hole and can rotate in the fifth pin hole.

14. A medical stapler comprising a nail head connection according to any of claims 1 to 13.

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