Skin stapler

Abstract

The present invention discloses a skin stapler, which is a skin stapler structure with a replaceable stapler magazine, which is composed of a first shell extending along the stapler-exiting direction and including a pressure-bearing control part, and a second shell with a stapler-exiting port arranged at the bottom. In a pressure-bearing state, the pressure-bearing control part is subjected to a force in the same direction as the stapler-exiting direction, so that a staple pressing piece at its bottom is displaced in the direction of the stapler-exiting port and contacts a suture staple pushed to a preparation position, and then presses the suture staple out of the stapler-exiting port. In the process of stapler-exiting, the pressure-bearing direction of the pressure-bearing end is consistent with the stapler-exiting direction, so that no component force other than the stapler-exiting direction is generated during suturing, thereby avoiding unexpected pain.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a press-type skin stapler used in surgical operations for suturing skin incisions. Background Art

[0002] After a surgical operation, the skin incision formed on the patient's skin surface during the operation needs to be sutured. In the previous technology, the suture of the intraoperative wound was often done manually. With the technological innovation, a better intraoperative suture product, namely a skin stapler, has been proposed in the existing technology.

[0003] The conventional design of the existing skin stapler is to be set as a handpiece including a gripping handle and a stapler, wherein the gripping handle is a handle unit formed by a combination of a movable end and a fixed end, and the stapler corresponding to the incision position when in use is located at the front end of the gripping handle. When using the existing skin stapler, the operator holds the gripping handle, with the palm of the hand in contact with the fixed end, and the fingers are bent and attached to the movable end. Then, the staple outlet of the stapler is placed at the skin incision suture position, and the fingers press the movable end in the direction of the fixed end so that the movable end and the fixed end are pressed tightly. This process causes the stapler pressing member inside the stapler to be driven by the elastic component to press the suture staples out of the stapler, and the suture staples penetrate the skin at the suture position to complete the suture. After each suture staple is pressed out, the elastic component pushes the next suture staple to the position of the staple outlet to wait for the next suture. After a single suture is completed, the operator releases the movable end, and the shrapnel between the movable end and the fixed end bounces the two apart, so that the skin stapler returns to its initial state. The above process is repeated several times until the skin incision produced during the operation is completely sutured and fixed.

[0004] After long-term practice, it was found that the conventionally designed skin stapler has the following problems:

[0005] 1) During use, in order to ensure that the suture staples exert sufficient force and avoid visual obstruction at the stapler exit site, the operator needs to hold the stapler at an appropriate angle. As a result, the force applied by the operator squeezing the active end will have a component force other than the horizontal direction. When this component force acts on the patient's skin incision, it will cause unexpected additional pain.

[0006] 2) To avoid cross infection, skin stapler products under traditional structures are mostly disposable consumables. When the suture staples in the stapler magazine are used up or even not used up, the entire stapler will be discarded. In recent years, although there have been stapler solutions with partially replaceable stapler magazines, in order to realize replaceable stapler magazines, these technical solutions require improvements to the existing simplified structure, which not only increases the complexity of the product structure, but also makes the magazine replacement method not simple enough.

[0007] In view of this, a new stapler should be proposed for improvement to solve the technical problems of the prior art such as strong suturing pain and inconvenient chamber replacement. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a skin stapler that can avoid unexpected pain during stapler suturing and can achieve convenient replacement of staple cartridges.

[0009] In order to solve the above technical problems, the present invention adopts a skin stapler, which includes: a first shell, which is a columnar member extending along the nail-out direction and includes at least one pressure-bearing control part for controlling the stapler to eject nails, the pressure-bearing control part extends from one end of the first shell inner cavity to the other end, and a part of the pressure-bearing control part extends from the end through hole of the first shell; a second shell, the second shell and the first shell are combined to form a detachable stapler shell structure, a nail-out port corresponding to the nail-out direction is formed on the second shell, and the second shell also includes A groove-shaped nail storage portion, wherein the nail outlet is located at the bottom of the nail storage portion along the nail outlet direction, and at least one group of nail pushing structures is arranged in the nail storage portion, and the nail pushing structure is configured to include at least one movable part pushed by a prestressed elastic component to keep the suture nail being pushed toward the nail outlet, wherein a nail pressing member is arranged at an end portion of the pressure-bearing control portion close to the second shell body, and when the pressure-bearing control portion is subjected to a force in the same direction as the nail outlet direction, the nail pressing member is displaced toward the nail outlet direction, and the suture nail is pressed out from the nail outlet to make the skin fit.

[0010] As a preferred embodiment of the present invention, the nail storage portion includes: at least one baffle pair, the baffle pair is configured as follows: two baffles are arranged opposite to each other and are respectively close to a groove wall on one side of the nail storage portion, and a gap is formed between the two baffles and the groove wall, so as to form a slide for the suture nail to slide, wherein the slide extends along the groove body direction of the nail storage portion and extends to the nail outlet position, the plate end surface of the baffle pair close to the nail outlet is flush with the nail outlet, the nail pushing structure pushes the suture nail to be output to a preparatory position corresponding to the nail outlet, the nail pressing sheet is displaced toward the nail outlet direction, and comes into contact with the suture nail to be output at the preparatory position.

[0011] As a further preferred embodiment of the present invention, the staple pushing structure comprises: a fixing member, which is detachably plugged and fixed to the second shell, and is provided with a first connecting protrusion extending along the direction of the groove body; and a movable member, a second connecting protrusion facing the first connecting protrusion is formed on one side surface of the movable member, wherein the prestressed elastic component is fixed by the first connecting protrusion and the second connecting protrusion, and the movable member is driven by the prestressed elastic component to resist the suture staple and drive the suture staple to maintain a tendency to advance toward the preparation position.

[0012] As a further preferred embodiment of the present invention, the movable member is configured to form recessed openings on both sides that match the slideway, so that the movable member and the suture staple can slide along the slideway together.

[0013] As a further preferred embodiment of the present invention, a central axis of the first shell is not coaxial with a central axis of the second shell, so that the central directions of the first shell and the second shell are offset.

[0014] As the present scheme is also preferred, wherein the nail storage portion comprises: two groups of baffle pairs, each group of the baffle pairs is configured as: the two baffles are arranged opposite to each other and are respectively close to one side groove wall of the nail storage portion, and a gap is formed between the two baffles and the groove wall, so as to form two slideways for the suture nails to slide, wherein the two groups of baffle pairs are respectively located on both sides of the nail outlet along the extension direction of the groove body of the nail storage portion, the two slideways extend in the same direction as the two baffle pairs, and each extends until its plate end surface close to the nail outlet is flush with the nail outlet, and comprises two groups of nail pushing structures cooperating with the two groups of baffle pairs, the two groups of nail pushing structures are configured as: two prestressed elastic components push the two movable parts to move relative to each other along the extension direction of the groove body, and push the suture nail to be output to a preparation position corresponding to the nail outlet, the nail pressing piece is displaced toward the nail outlet, and forms contact with the suture nail to be output at the preparation position.

[0015] As a further preferred embodiment of the present invention, the nail pushing structure includes two nail pushing parts arranged opposite to each other, which are defined as a first nail pushing part and a second nail pushing part, wherein the first nail pushing part includes: a first fixing part which is plugged and fixed to the second shell body, and a first movable part which is against the prestressed elastic component, a group of fixing protrusions facing each other are formed on the first fixing part and the first movable part, and the prestressed elastic component is fixed by the two fixing protrusions; the second nail pushing part includes a second movable part which is consistent with the first movable part, and a group of fixing protrusions facing each other are formed on the second movable part and the groove end of the nail storage part to fix the prestressed elastic component.

[0016] In a further preferred embodiment, two levels of inner cavities are formed in the first shell, which are defined as the first inner cavity and the second inner cavity respectively, and a limiting flange is formed between the two levels of inner cavities. The extension direction of the second inner cavity is consistent with the direction of the nail outlet, a part of the pressure control part extends in the first inner cavity, and the other part extends into the second inner cavity, and the nail pressing piece at its end extends from the first inner cavity into the second inner cavity, and the first inner cavity also includes an elastic component, which is configured to be compressed to have prestress, one end of which is limited by the limiting flange, and the other end is limited by the end of the pressure control part, and the prestress makes the pressure control part maintain a tendency to move in the direction away from the nail outlet and be limited by the cavity wall of the first inner cavity.

[0017] Furthermore, the pressure-bearing control part includes: a pressure-bearing end, which is the part of the pressure-bearing control part extending out of the end through hole of the first shell, and the surface of the pressure-bearing end forms an arc-shaped pressure-bearing surface; a connecting rod, which extends from the pressure-bearing end to the second inner cavity, and the pressure nail sheet is arranged at one end of the connecting rod located in the second inner cavity, wherein the end surface of the pressure-bearing end connected to the connecting rod is further extended to form a limit widening part, and the pressure control part and the first inner cavity form a limit at the position of the limit widening part.

[0018] Furthermore, an inserting groove is formed at the end of the connecting rod located in the second inner cavity, and the nail pressing piece is adapted to the inserting groove.

[0019] Furthermore, the first shell is a detachable structure, including a head end piece and a main body piece which are combined to butt joint to form the first shell, and the end through hole is formed on the surface of the head end piece.

[0020] Also preferably, a limiting countersunk hole is formed on the inner cavity wall of the first shell, and a limiting protrusion is formed on the limiting widening portion of the pressure control part, and when the first shell and the pressure control part are combined, the limiting protrusion is inserted into the limiting countersunk hole to limit the first shell and the pressure control part, and the limit between the first shell and the pressure control part is configured such that when the limiting protrusion is inserted into the limiting countersunk hole, the pressure nail plate is aligned with the preparatory position.

[0021] Still further preferably, the limiting protrusion is a telescopic part and is configured to sink into the limiting widening part under a pressure-bearing state, and when the pressure-bearing control part is rotated to the point where the limiting protrusion is opposite to the limiting countersunk hole, the limiting protrusion is released from the pressure-bearing state and extends into the limiting countersunk hole.

[0022] In another aspect of the present invention, the detachable structure between the first shell and the second shell is as follows: a transparent table-shaped connecting portion is formed at the bottom of the first shell, the connecting portion forms an inwardly recessed connecting port consistent with the transparent second shell, and a card slot extending along the connecting port, and a hook is formed on the second shell, the hook engages with the card slot, so that the first shell and the second shell are combined into a formed shape.

[0023] Preferably, at least one slot surrounding the nail storage portion is formed on a side surface of the second shell body provided with the nail storage portion, and a pair of slot wall through holes are formed on the slot wall away from the nail storage portion, and the extension direction of the two slot wall through holes is perpendicular to the recessed direction of the slot, wherein a connecting plug is also provided in the slot, and the connecting plug is an elastic member, the hook is formed on the connecting plug, and the connecting plug also includes a connecting protrusion that cooperates with the slot wall through hole, and the elastic connection between the connecting plug and the slot is configured as follows: the connecting plug is inserted into the slot, and the two connecting protrusions thereon are kept inserted from the two slot wall through holes respectively, and protrude beyond the outer contour of the second shell body.

[0024] Further preferably, a countersunk hole is formed in the card slot, and when the second shell is docked with the connecting port of the first shell, the hook is inserted into the countersunk hole to limit the position between the first shell and the second shell, and the limit between the first shell and the second shell is configured so that when the hook is inserted into the countersunk hole, the pressure nail plate is aligned with the preparatory position.

[0025] Also preferably, the bottom of the nail outlet is formed with a molding plate consistent with its opening direction, and a nail removal port offset from the nail outlet, when the nail pressing piece is displaced in the direction of the nail outlet, the suture nail to be output is pressed from the preparation position onto the molding plate for molding, and is pressed out from the nail removal port, wherein a gap is formed between the molding plate and the nail removal port so that the suture nail can withdraw from the gap.

[0026] Due to the adoption of the above technical solution, the present invention has the following beneficial technical effects compared with the prior art:

[0027] 1. The conventionally designed stapler generates force components in other directions during suturing, which causes unexpected additional pain to the patient. This is because the force direction of the grip handle is inconsistent with the nail ejection direction (usually opposite), so that under the premise of aligning the nail ejection port, it is difficult for the oblique stapler to ensure that no force components in other directions are generated. The preferred embodiment of the present invention proposes a new vertical structure. When suturing, the structure is placed at the wound position, and the operator applies force to the pressure control part in the direction of the wound, thereby ensuring that the nail ejection direction is consistent with the force direction, reducing the force component of the stapler's control force outside the nail ejection direction, and significantly relieving the pain during suturing;

[0028] 2. The configuration of the nail pushing structure can be to push the suture nails to be ejected to the top of the nail outlet at the center position from both sides of the nail storage part, or to push the suture nails to the top of the nail outlet from one side of the nail storage part. In the scheme of pushing nails from both sides, the method of pushing nails from both sides makes the force of the nail pressing piece more sufficient, but there is also the problem of uneven force on both sides of the suture nail, which causes the contact position between the nail pressing piece and the suture nail to be deviated; while the one-way nail pushing scheme can make the positioning of the suture nails to be ejected more accurate and improve the stability of nail ejection;

[0029] 3. The overall structure of the stapler is a detachable structure, which allows the stapler magazine to be more conveniently separated from the pressure control part without adding additional parts, thereby realizing a stapler solution with a replaceable stapler magazine. However, correspondingly, due to the detachable and rotatable assembly method between the first shell and the second shell, it is easy to cause the pressure nail piece and the suture nail to be misaligned during the assembly and suturing process. Therefore, in different preferred embodiments of the present solution, the first shell and / or the second shell are respectively limited to ensure that after assembly, the relative positions of the first shell and the pressure control part therein, as well as the first shell and the second shell are limited by corresponding limiting methods, so that the relative positions of the pressure nail piece and the suture nail remain fixed to avoid misalignment;

[0030] 4. Further, in order to facilitate operation, the pressure-bearing end of the pressure-bearing control part is designed as an arc-shaped surface, and the inclination direction of the arc-shaped surface is adapted to the operator's fingertips when applying pressure, thereby serving as a calibration mechanism for the above-mentioned limit structure;

[0031] 5. Since the nail outlet will at least partially cover the patient's wound, in order to facilitate observation of the alignment between the nail outlet and the patient's incision, the connecting portion of the first shell and the second shell are configured as transparent parts to ensure that the nail outlet is aligned with the intraoperative incision. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram schematically showing the main structure of the skin stapler shown in the first embodiment of the present invention;

[0033] Figure 2A top view showing Figure 1 A top view of the skin stapler shown in ;

[0034] Figure 3 is a bottom view showing Figure 1 The bottom view structure of the skin stapler shown in ;

[0035] Figure 4 is a cross-sectional view showing Figure 1 Cross-sectional structure in the middle AA direction;

[0036] Figure 5 The main view shows Figure 4 The main structure of the pressure control part;

[0037] Figure 6 The main view shows Figure 5 The structure of the pressure control part at another angle shown;

[0038] Figure 7 This is an exploded sectional view showing the separation structure of the first shell and the second shell in the first embodiment of the present invention;

[0039] Figure 8 is an exploded view showing the exploded structure of the second shell in the first embodiment of the present invention;

[0040] Fig. 9 is a state diagram, showing a state in which the staple pressing piece contacts the suture staple in the second housing in the use state;

[0041] Fig.10 is a partial state diagram, showing the state of the stapler outlet before the stapler is ejected when the skin stapler shown in the first embodiment is in use;

[0042] Fig.11 is a partial state diagram, showing the state of the skin stapler shown in the first embodiment when the stapler outlet is in use and the stapler is ejecting a stapler;

[0043] Fig.12 is a partial state diagram, showing the state of the skin stapler shown in the first embodiment after the stapler is ejected from the stapler outlet when in use;

[0044] Fig.13 is a top view showing the structure of the second housing in the skin stapler according to the second embodiment of the present invention;

[0045] Fig.14 This is an exploded view showing Fig.13 The exploded structure of the second shell shown;

[0046] Fig.15 A schematic diagram showing Fig.13 The bottom structure of the second shell shown;

[0047] Fig.16 is a schematic diagram showing the overall structure of the skin stapler shown in the second embodiment;

[0048] Fig.17 is a cross-sectional view showing Fig.16 The cross-sectional structure of

[0049] Fig.18 is a cross-sectional view showing the cross-sectional structure of the skin stapler in the third embodiment of the present invention;

[0050] Fig.19 is a cross-sectional view showing the cross-sectional structure of the first housing of the skin stapler according to the fourth embodiment of the present invention;

[0051] Fig. 20 is a schematic diagram showing the main structure of the pressure control part in the fourth embodiment;

[0052] Fig.21 This is a partial enlarged view showing Fig.19 The partially enlarged structure of part A in the middle. DETAILED DESCRIPTION

[0053] The reason why the conventionally designed stapler causes patients unexpected pain during suturing is that the force direction of the grip handle is inconsistent with the direction of the stapler removal (usually opposite), which generates force components in other directions when the force is applied. These forces are the main source of pain. However, the grip and squeeze method for stapler removal is also designed to give way to the stapler removal port in order to clearly observe the suture position. Therefore, in order to eliminate the unexpected pain, the design also needs to take into account the accurate observation of the suture position.

[0054] The idea of ​​the present invention to solve the above technical problems is: through structural improvement, the direction of the control force controlling the stapler to eject the nail can be consistent with the direction of the nail ejection, thereby reducing the component force of the control force in other directions that may appear when the nail is ejected, and at the same time considering the positioning of the nail outlet and the suturing position.

[0055] The following will describe multiple embodiments of a skin stapler according to the present invention with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of the claims. In addition, in this specification, the drawings are not drawn to scale and the same reference numerals represent the same parts.

[0056] It should be noted that the expressions “first” and “second” used in the embodiments of the present invention are intended to distinguish two non-identical entities with the same name or non-identical parameters. It can be seen that “first” and “second” are only for the convenience of expression and should not be understood as limitations on the embodiments of the invention. The subsequent embodiments will not explain this one by one.

[0057] Embodiment 1

[0058] Based on the improvement idea of ​​the present invention, the present invention provides a skin stapler, which adopts a pressing nail-out method perpendicular to the suturing position, replacing the squeezing nail-out method of lifting the movable end in the prior art, so as to achieve the consistency of the control force direction and the nail-out direction.

[0059] See also Figure 1 , Figure 1 FIG. 2 is a schematic diagram schematically showing the main structure of the skin stapler shown in the first embodiment of the present invention. Figure 1 The angles shown define the horizontal and vertical directions, and the skin stapler in the preferred embodiment includes a first shell 100 extending in the vertical direction, and a second shell 200 extending in the horizontal direction, and the bottom of the first shell 100 partially covers the second shell 200 therein to form the overall structure of the skin stapler. The first shell 100 includes a pressure control part, and the second shell 200 includes a nail storage part.

[0060] See also Figure 2 and Figure 3 , Figure 2 and Figure 3 They are shown respectively Figure 1 The top view and the bottom view of the skin stapler shown in the figure, the protruding structure at the top of the first shell 100 is the pressure-bearing end of the pressure-bearing control part, and the opening at the bottom of the second shell 200 is the nail outlet 201. A nail outlet direction can be determined through the nail outlet 201, so that in the preferred embodiment, the pressure-bearing end 101 and the nail outlet 201 are coaxially arranged, that is, the control force on the pressure-bearing end 101 is consistent with the nail outlet direction. When in use, the nail outlet 201 at the bottom of the second shell 200 is placed at the place to be sutured, and a force is applied to the pressure-bearing end 101 so that the nail pressing piece on the pressure-bearing control part presses out the suture nail. It is worth mentioning that in order to facilitate the observation of the suture position and calibrate the nail outlet 201 with the suture position, in the preferred embodiment of the present invention, the bottom of the first shell 100 and the second shell 200 can be set as transparent parts.

[0061] Now let's look at the internal structure of the first housing 100 and the second housing 200. Figure 4 , Figure 4 is a cross-sectional view showing Figure 1The sectional structure in the A-A direction in the figure. The first housing 100 is a "丄"-shaped part, and its inner cavity includes three levels of inner cavities from top to bottom, which are respectively defined as the first inner cavity 102 for carrying the pressure-bearing control part 300, the second inner cavity 103, and the connection part 104 for docking with the second housing 200. Inside the first housing 100, there is a pressure-bearing control part 300 for controlling the staple ejection of the stapler. The extending direction of the pressure-bearing control part 300 is: maintaining the direction towards the staple outlet 201 and extending from one end of the inner cavity of the first housing 100 to the other end. Figure 5 shows Figure 4 the front view structure of the pressure-bearing control part in Figure 4 and Figure 5 It can be seen that one end of the pressure-bearing control part 300 extending out of the first housing 100, that is, the aforementioned pressure-bearing end 101, and the surface of the pressure-bearing end 101 is designed as an arc-shaped pressure-bearing surface. The function of this pressure-bearing surface will be described later and will not be elaborated here. At the bottom of the pressure-bearing end 101 is a long and straight connecting rod 105. This connecting rod extends from the pressure-bearing end 101 towards the second inner cavity 103. At the end of the connecting rod 105, there is a stapling piece 106 inserted. The stapling piece 106 extends into the second inner cavity 103 and keeps its stapling end pointing towards the staple outlet 201. Looking again at Figure 6 , Figure 6 is the structure of the pressure-bearing control part 300 at another angle. As Figure 6 shown, in this preferred embodiment of the present invention, the configuration method of the stapling piece 106 and the pressure-bearing control part 300 is to form a stapling piece insertion port 107 at the end of the connecting rod 105. The stapling piece insertion port 107 is adapted to the stapling piece. However, it should be understood that in other preferred embodiments, the fastening method between the connecting rod 105 and the stapling piece 106 can also be other well-known existing methods. Even, the stapling piece 106 can also be integrally formed with the connecting rod.

[0062] Looking back at Figure 4 and Figure 5 , on the side end face where the pressure-bearing end 101 is docked with the connecting rod 105, it further extends in the horizontal direction to form a limiting widening part 108. During the assembly process of the pressure-bearing control part 300, its pressure-bearing end 101 extends out from the end through hole (not shown in the figure) at the top end of the first inner cavity 102, and makes the limiting widening part 108 come into contact with the inner wall of the first inner cavity 102. And the elastic component 109 in the first inner cavity 102 is used to cooperate with the limiting and resetting of the pressure-bearing control part 300. Continuing to refer to Figure 4In the first shell 100, a stage-shaped flange 110 is formed at the transition position from the first inner cavity 102 to the second inner cavity 103, and one end of the elastic component 109 is pressed by the limiting widening portion 108, and the other end is against the stage-shaped flange 110. In this way, the elastic component 109 is configured to be pressed to have an initial prestress, which is the force of the elastic component 109 to restore its elastic deformation. The prestress makes the pressure control part 300 maintain a displacement in the direction away from the nail outlet 201 and be limited by the top cavity wall of the first inner cavity 102 in a non-pressure state; and after the pressure control part 300 is under pressure, the stress of the elastic component 109 to restore its elastic deformation can make the pressure control part 300 return to its initial position.

[0063] It should be pointed out that in different preferred embodiments of the present invention, the configuration of each part of the pressure control part 300 in the first shell 100 may also be different. For example, the height ratio of the first inner cavity 102 and the second inner cavity 103, and the length ratio of the connecting rod 105 and the nail pressing end of the nail pressing piece 106 can be configured according to specific specifications, and corresponding elastic components can be configured. For another example, in some embodiments, the nail pressing piece 106 located at the end of the connecting rod 105 can also be partially located in the first inner cavity 102, and extend from the first inner cavity 102 to the second inner cavity 103. For another example, the pressure control part 300 can be an integral structure composed of multiple connecting rods, or it can be a plurality of independent connecting rods, and multiple button parts with the same control function can be configured. Although the above ratio can be configured according to specific needs, it is necessary to meet the requirements that the pressure of the suture nail can be pressed out within the range of the operator's operating force, and the elastic component has sufficient prestress to meet the requirements that the pressure control part 300 maintains its movement trend.

[0064] In addition, it is worth mentioning that in some extreme embodiments, the elastic component is not a necessary component. For example, in a disposable product in which the staple cartridge contains a single suture staple, there is no need to consider the reset requirement of the pressure control part, and the elastic component is not a necessary component. However, in this case, after the elastic component is cancelled, other limiting methods need to be adopted so that the pressure control part is limited to the top end of the inner cavity of the first shell in a non-pressure state, for example, a support structure that is destroyed after the pressure end is pressurized. The preferred embodiment of the present invention should not be limited by the specific form of the elastic component and the limiting structure.

[0065] Let's talk about the separable structure between the first shell 100 and the second shell 200. The splicing between the two shells can be based on various possibilities under traditional knowledge and conventional design. For example, in the known design scheme where part of the nail magazine is replaceable, the connection between the nail magazine and the control body is configured as follows: the nail magazine and the body are fixedly connected by screwing, or the nail magazine and the body are fixedly connected by buckles and slots. Different preferred embodiments of the present invention can select any of the above two methods, or a combination of the two methods to achieve the fixation between the two.

[0066] In the first embodiment of the present invention, a feasible method for realizing the docking configuration between the first shell 100 and the second shell 200 is provided. Figure 7 The sectional view shows the separation structure of the first shell 100 and the second shell 200 in the first embodiment of the present invention. Figure 4 and Figure 7 The connecting portion 104 of the first shell 100 is formed with an inner concave connecting port 1041 adapted to the second shell 200, and a clamping groove 1042 extending along the circumferential direction of the opening of the connecting port 1041, and a pair of clamping hooks 202 are formed on the second shell 200, and the first shell 100 and the second shell 200 are formed by the engagement of the clamping hooks 202 and the clamping grooves 1042. As mentioned above, in other preferred embodiments of the present invention, in addition to the design of the clamping groove 1042 in the connecting port 1041, a connection method can also be designed in which the first shell 100 and the second shell 200 are clamped by the clamping grooves 1042 and the clamping hooks 202 after the threaded adaptation, which will not be repeated here.

[0067] After talking about the first shell 100, let's talk about the second shell 200. In addition to the nail outlet 201 formed at the bottom, the second shell 200 also includes a nail storage part for storing suture nails, and a nail pushing structure for pushing the suture nails to the nail outlet position. The controlled stroke of the nail pressing piece 106 at the end of the pressure control part 300 should be displaced to the nail storage part, and after coming into contact with the suture nail, pressure is applied to the suture nail to press the suture nail out of the nail outlet 201. Here, for the convenience of explanation, a preparatory position is defined, which refers to the nail outlet position to which the nail pushing structure pushes the suture nail to be ejected, and also refers to the position where the nail pressing piece 106 comes into contact with the suture nail to be ejected after displacement.

[0068] See also Figure 8 , Figure 8: is an exploded diagram, showing the exploded structure of the second shell 200 in the first embodiment of the present invention. In the first embodiment, the first shell 100 is configured as a two-stage structure including a cylindrical body and a truncated cone-shaped connecting portion. Correspondingly, the second shell 200 is configured as a disc-shaped member adapted to the connecting portion, and the nail outlet 201 is formed at the center of the bottom of the second shell 200, and the vertical direction centered on the center of the circle is also the nail outlet direction. It should be pointed out that the selection of the position of the nail outlet 201 does not necessarily have to be the center of the second shell 200, and the selection of the position of the nail outlet 201 is not limited by the style and specifications of the second shell 200. In some embodiments, the nail outlet 201 can be offset to the center of the second shell 200. When the nail outlet 201 is offset, the position of the first shell 100 will also be designed as an offset design accordingly, which will be explained later and will not be expanded here.

[0069] A groove-shaped nail storage portion 203 is formed on the second housing 200, and the extension direction of the nail storage portion 203 is a radial direction passing through the center of the second housing 200. A slideway is formed in the nail storage portion 203 through a baffle disposed near the groove wall. Figure 8 In this embodiment, two baffle pairs (204a, 204b) are included. The two baffle pairs (204a, 204b) are respectively located on both sides of the nail outlet 201 along the extension direction of the nail storage part 203 and are symmetrically arranged, and are respectively defined as the first baffle pair 204a and the second baffle pair 204b. Taking the first baffle pair 204a as an example, the two baffles are located on both sides of the axial direction of the nail storage part 203 and are arranged opposite to each other. Moreover, the two baffles are respectively close to the groove wall of the nail storage part 203 on their respective sides, and a gap is formed between them and the groove wall. The height of the baffle is roughly equal to the groove depth of the nail storage part 203, or slightly higher or lower. In this way, the two baffles and the gaps between them and the groove wall are combined to form a slideway 205. Accordingly, the two baffle pairs (204a, 204b) form two slideways 205 on both sides of the nail outlet 201. A gap is formed between the two baffle pairs (204a, 204b), and the gap is specifically that each baffle in the baffle pair (204a, 204b) extends to the baffle end surface close to the nail outlet 201 and is flush with the opening of the nail outlet 201. In this way, a gap consistent with the specifications of the nail outlet 201 is formed between the two baffle pairs (204a, 204b), and the suture nail 400 is driven by the nail pushing structure so that the suture nail to be ejected is pushed to the gap position, and the suture nail to be ejected contacts the nail pressing piece 106 at this position. Therefore, in other words, the gap position is also the aforementioned preparatory position.

[0070] The "U"-shaped staple 400 is stored in the staple storage part 203 and is supported by two groups of baffle pairs (204a, 204b) and can slide along the extending direction of the slideway 205. To push the staple 400 to the preparatory position, it can be done by using two groups of staple pushing structures to push from both sides of the staple towards the center, or by using one group of staple pushing structures to push from one side of the staple to the other side. In the first embodiment, the configuration of using two groups of pushing structures is shown first.

[0071] The staple pushing structure is composed of a fixed end, a movable part, and a prestressed elastic part. By fixing a prestressed elastic part through the fixed end and the movable part, the movable part abuts against the staple and drives the staple to maintain the tendency of advancing towards the preparatory position. Continuing to refer to Figure 8 , in the first embodiment, there are two groups of staple pushing structures, which are respectively defined as the first staple pushing part 206 and the second staple pushing part 207.

[0072] First, talk about the first staple pushing part 206. The first staple pushing part 206 includes a first fixing part 2061 inserted and fixed to the second housing 200. The staple storage part 203 is set as an open-ended slot at one end to facilitate the assembly of the first fixing part 2061. The first fixing part 2061 includes a sheet-shaped body. On one side surface of the body, a plug-in block 2062 is formed, which can be inserted and fixed to the plug-in port 208 at the bottom of the staple storage part 203. The detachable fixation between the first fixing part 2061 and the second housing 200 can facilitate the disassembly and assembly of the second housing. Of course, it is easy to think that in some product examples that do not require disassembly or recycling, the first fixing part 2061 can also be integrally formed with the second housing 200. On the other side surface of the body of the first fixing part 2061, a blind hole part 263 is formed, including an opening for assembling the prestressed elastic part 2064 on one side and a fixing protrusion (not shown in the figure) in the opening. One end of the prestressed elastic part 2064 is inserted into the opening of the blind hole part 263 and abuts against the fixing protrusion, and the other end is fixed to the fixing protrusion 2066 on the first movable part 2065. The blind hole part 263 on the first fixing part 2061 and the first movable part 2065 are of the same height in the vertical direction, so that the two fixing protrusions on the blind hole part 263 and the first movable part 2065 face each other, and then the prestressed elastic part 2064 can be fixed through the two fixing protrusions.

[0073] On the side surface of the first movable part 2065 that is not对接 with the prestressed elastic part 2064, it is configured to abut against the staple 400 and push the staple 400 to slide on the slideway 205. Theoretically, the specification of the first sliding part can be set to be approximately the same as the distance between the two baffles in the baffle pair and slide between the two baffles. However, a better solution that is easy to think of is to form recessed openings 2067 matching the slideway 205 on both sides of the body of the first movable part 2065. In this way, the first movable part 2065 also slides within the slideway 205.

[0074] Now let's talk about the second nail pushing part 207. The second nail pushing part 207 includes a second movable part 2071 that is consistent with the first movable part 2065, and the configuration of the fixed part is cancelled. Then, in the second nail pushing part 207, the fixing method of the prestressed elastic part 2064 is realized by forming a group of fixed protrusions 2072 facing each other on the second movable part 2071 and the end of the groove of the nail storage part 203. It should be pointed out that, in different embodiments of the present invention, those skilled in the art can choose the specific configuration of the nail pushing part structure and the fixing method of the prestressed elastic part according to the design needs. For example, in other schemes in which two groups of nail pushing structures push nails from both sides, the two groups of nail pushing structures can also adopt the same configuration, including the same fixed parts and movable parts, or adopt a configuration scheme opposite to this scheme, or adopt other schemes known in the prior art. As for the fixing of the prestressed elastic part, it can be fixed by the fixed protrusions facing each other as in this embodiment, or the fixed protrusions can be set as a fixed unit composed of multiple fixed columns, and the outer contour of the fixed unit can be adapted to the prestressed elastic part.

[0075] In order to achieve the aforementioned engagement and docking between the first shell 100 and the second shell 200, a slot 209 is further provided on the second shell 200. Figure 7 Combined with Figure 8 In this embodiment, a semicircular slot 209 around which the nail storage portion 203 is arranged is formed along the edge of the second housing 200, and a pair of slot wall through holes 2091 are formed on the end surface of the second housing 200 near the slot ends on both sides of the slot 209. The slot wall through holes 2091 are the same as the slot 209. A semicircular connecting plug 210 is inserted into the slot 209 from the notch of the slot. The connecting plug 210 is an elastic member. The hook 202 structure on the second housing 200 is located at both ends of the connecting plug 210. The connecting plug 210 also includes a connecting protrusion 2101 matched with the slot wall through hole 2091. The connecting protrusion 2101 is made of soft material. In this way, when the elastic connecting plug 210 is inserted into the slot, the connecting protrusion 2101 can be inserted into the slot 209 and then protrude from the slot wall through hole 2091, and maintain the tendency of protruding outward. When disassembling, the second shell 200 can be separated from the first shell 100 by pinching the two connecting protrusions 2101 and clamping them toward the center of the second shell 200 .

[0076] In the first embodiment, only one feasible configuration scheme for the position, style and connection plug of the slot is shown. In some improved schemes, the position of the connection protrusion, the number of the slot and the connection plug are all optional. In this embodiment, since the docking between the first shell and the second shell adopts the method of the connection part at the bottom of the first shell covering the second shell, on this basis, the position of the slot on the second shell corresponds to it. However, in other embodiments, on the one hand, the second shell can also be configured to be further widened to form the style of the second shell as the first shell seat. In this case, the position of the slot is no longer located at the edge of the surface of the second shell. At the same time, due to the change of the plug-in relationship, it is easy to think of changing the position of the connection protrusion to the bottom of the second shell, and changing the position of the hook to the bottom of the first shell, so that the first shell is downwardly engaged with the plug-in slot of the second shell; on the other hand, the second shell can be further divided into a sealing member formed by splicing the upper and lower cover bodies, and the configuration of the hook structure can be a method of engaging with the slot of the connection part of the first shell after passing through the corresponding through hole on the top shell from the bottom shell upward. In addition, the elastic connecting plug can be in any arc shape, strip shape, etc. under normal conditions. Its adaptation to the slot only requires that it can be inserted into the slot and maintain the aforementioned trend in the slot.

[0077] See also Fig. 9 , Fig. 9 1 is a state diagram, showing the state in which the nail pressing piece contacts the suture nail in the second housing in the use state. In the use state, when the pressure-bearing end 101 is driven by the force to drive the connecting rod downward, the nail pressing piece 106 moves toward the nail outlet until the nail is in the state of contact with the second housing. Fig. 9 In the state shown, the staple pressing piece 106 is in contact with one of the staples 400, and the contacted staple is also the staple to be ejected, and the current contact position of the staple pressing piece 106 is also the aforementioned preparation position.

[0078] The following is a description of the process of nail removal with the help of the attached figure. Figure 3 When viewed from an upward angle, a forming plate 211 and a nail removal port 212 are formed below the nail outlet 201 . Figures 10 to 12 FIG. 1 is a partial state diagram showing different states of the stapler outlet of the skin stapler shown in the first embodiment from before the stapler is ejected to when the stapler is ejected, and after the stapler is ejected. Figures 10 to 12, the "U"-shaped staples pressed out from the staple outlet 201 will first contact the forming plate 211. The length of the forming plate 211 is less than the opening width of the staple outlet 201. At the same time, the length of the forming plate 211 is also less than the width of the staple. In this way, when the staple 400 contacts the forming plate 211, the body of the staple is limited by the forming plate 211, and the two ends of the staple will be further pressed and bent downward and nailed into the skin at the suture position. Then, under the action of further pressure, the staple pressing piece 106 continues to move downward so that the two ends of the staple are combined to form a closure. In this preferred embodiment, when considering stapling, a certain gap is maintained between the formed staple and the skin surface through the forming plate. After suturing, the operator can separate the skin stapler from the suture position through a fine-tuning action. Due to the existence of the gap, this fine-tuning action will not cause unexpected pain to the patient.

[0079] In this way, in the skin stapler of the first embodiment of the present invention, an operator applies a force in the direction of the suture position to the pressure-bearing control part in a pressing manner, so that the staple outlet direction is consistent with the force direction of the pressure-bearing end. Thus, during the suturing process, the stapler will not produce horizontal separation other than the staple outlet direction, solving the technical problem of unexpected pain in the prior art.

[0080] Embodiment 2

[0081] In the solution of the first embodiment, two sets of staple pushing structures are adopted in the second housing, and the staple pushing method is to push the staples towards the central staple outlet. Since the staples are pushed from both sides, the contact force between the staple pressing piece and the staple is enhanced. However, due to various reasons such as wear of the staple pressing piece and aging of the elastic member, after long-term use, the thrust of the two-side staple pushing structure may be uneven, resulting in unequal forces on both ends of the staple, and the possibility of skewing at the preparation position.

[0082] Refer to again Fig. 9 , in this state, the correct contact between the staple pressing piece 106 and the staple should be that the two staple pressing ends on both sides of the staple pressing piece 106 are in full contact with the surface of the staple. However, due to the above reasons, when the preparation position is skewed, the contact positions of the two staple pressing ends on both sides of the staple pressing piece 106 with the staple may be skewed to the gap part between the two staples. Then, the stapling in this state will surely be affected. To solve this technical problem, the present invention proposes Embodiment 2. The idea of Embodiment 2 to solve its technical problem is to improve the two-side staple pushing in the first embodiment to one-side staple pushing, so that the staple is stressed on one side, and the accuracy of the preparation position can be ensured.

[0083] Refer to Fig.13 , Fig.13It is a top view showing the structure of the second housing in the skin stapler of the second embodiment of the present invention. It can be seen that the second embodiment improves the method of using two groups of pin pushing structures to push the pins toward the center in the first embodiment to using one group of pin pushing structures to push the pins toward the other side. Fig.14 This is an exploded view showing Fig.13 The exploded structure of the second shell shown. Fig.14 In the second housing 200, the nail storage part 203 includes a set of baffle pairs 204, which are arranged in the nail storage part 203 in the same manner as the baffle pairs (204a, 204b) in the first embodiment, and form a slideway 205 for the suture nails to slide. At the same time, the plate end surface of the baffle pair 204 close to the nail outlet 201 is flush with the nail outlet, and forms a gap with the end of the groove body of the nail storage part 203, and the gap corresponds to the nail outlet 201. Referring to the concept of the preparation position in the first embodiment, in the second embodiment, the gap also corresponds to the preparation position.

[0084] The push nail structure in the second embodiment adopts the same configuration as the first push nail part 206 in the first embodiment, including a third fixing member 2131 plugged into the second shell 200, and a third movable member 2132 driven by the prestressed elastic member 2064. Although the prestressed elastic member 2064 here is also fixed by two opposite connecting protrusions, it is different from the first push nail part 206 in that the third fixing member 2131 does not include a blind hole member 263, but a support member 2133 is formed at one end of the third fixing member 2131 away from the third movable member 2132, and the other connecting protrusion opposite to the connecting protrusion 2134 on the third movable member 2132 is formed on the support member 2133.

[0085] See also Fig.15 , Fig.15 A schematic diagram showing Fig.13 The bottom structure of the second shell is shown. It can be seen that in the second embodiment, in order to realize the structure of pushing nails with a single nail pushing part, the position of the nail outlet 201 has also changed. The nail outlet 201 is no longer located at the center position of the bottom of the second shell 200, but is offset relative to the center position. However, it should be noted that in different embodiments of the present invention taking the second embodiment as an example, the selection of the position of the nail outlet 201 is not fixed. The position of the nail outlet is limited by the specifications of the second shell, the length of the nail storage part 203, and the number of suture nails required to be stored in the nail storage part. Therefore, in some other embodiments, based on the solution of pushing nails with a single nail pushing part, the nail outlet can also be opened at the center position of the second shell.

[0086] When the position of the nail outlet 201 changes, in order to ensure that the force direction applied by the operator is consistent with the nail outlet direction, the position of the first housing 100 will also change accordingly with the position of the nail outlet 201. Fig.16 and Fig.17 , Fig.16 FIG. 1 is a schematic diagram showing the overall structure of the skin stapler shown in the second embodiment. Fig.17 is a cross-sectional view showing Fig.16 When the nail outlet 201 is offset, the first shell 100 is also offset relative to the center of the second shell 200 to ensure that the pressure direction of the pressure control part inside it is consistent with the nail outlet direction. Correspondingly, in other non-offset nail outlet solutions based on Example 2, the position of the first shell can still be configured in the same manner as Example 1, and it is only necessary to ensure that the extension direction of the pressure control part inside it is consistent with the nail outlet direction.

[0087] The second embodiment only describes the differences between it and the first embodiment, and the same parts between the second embodiment and the first embodiment are not described again.

[0088] Embodiment 3

[0089] In the solutions of the first and second embodiments, the first shell is an integrally formed part. However, considering the portable assembly of the device in the aforementioned embodiments, and considering the aging of the elastic component and the nail pressing piece that cooperate with the pressure control part, it should be conceivable that the first shell is also configured as a detachable structure based on the solutions of the first and second embodiments in which the nail magazine is replaceable.

[0090] Fig.18 is a cross-sectional view showing the cross-sectional structure of the skin stapler described in the third embodiment of the present invention. In the third embodiment, the first shell 100 is a detachable structure, including a head end piece 111 and a main body piece 112 that are connected to each other. The adaptation between the head end piece 111 and the main body piece 112 can be a threaded match between an internal thread formed on the inner side of the opening of the head end piece 111 and an external thread formed on the outer side of the port of the main body piece 112, or a tight plug-in in a yielding form between the openings of the two, so that a flat shell surface is formed on the outside of the first shell 100. However, it should be understood that the purpose of the improvement of the first shell in the third embodiment is to allow the pressure control part to be inserted into the main body and then sealed through the head end. When inspecting and replacing, the structure of the first shell is disassembled through the opposite process. The third embodiment of the present invention should not be limited to the specific adaptation relationship between the head end and the main body.

[0091] Embodiment 4

[0092] In the first to third embodiments of the present invention, in order to calibrate the relative positions of the nail outlet and the suture outlet, the following improvements are made:

[0093] 1) In the first shell, the end surface of the pressure-bearing end is designed in an arc shape. On the one hand, the arc surface is designed for human mechanics to fit the surface of the operator's fingertips, and on the other hand, it is used to calibrate the suturing position. That is, when the curvature of the arc surface matches the curvature of the operator's fingertips, it indicates that the nail outlet is consistent with the suturing position at this time;

[0094] 2) The connecting portion of the first shell and the second shell of the skin stapler are made of transparent material, so that when the skin stapler covers the suturing position, the suturing position can still be observed through the transparent shell.

[0095] However, in some preferred embodiments of the present invention, since the fit between the pressure control part and the first shell is not fixed, and the combination between the second shell and the first shell is also rotatable, in some cases, it is difficult to ensure that the loose pressure control part and the rotatable second shell can always maintain accurate positions. Although, in the aforementioned embodiments, the pressure nail piece is limited when inserted into the second inner cavity of the first shell, so that the relative position of the pressure control part connected to the pressure nail piece will not be deflected or misaligned, it is still necessary to provide other supplementary limiting methods to ensure that the relative positions of the stapler outlet, stapler outlet direction and suturing position will not be deflected or misaligned.

[0096] Embodiment 4 The idea of ​​solving the above technical problem is to configure two limit calibration structures between the pressure control part and the first shell, and between the second shell and the first shell, respectively, to achieve two-level positioning calibration.

[0097] Look first Fig.19 , Fig.19 : is a cross-sectional view showing the cross-sectional structure of the first housing of the skin stapler in the fourth embodiment of the present invention. In the preferred embodiment described in the fourth embodiment, a limiting groove 113 is formed on the wall of the first inner cavity 102 of the first housing 100. The limiting groove 113 extends from one end surface of the first housing 100 in a direction perpendicular to the staple outlet to the other end surface of the first housing 100. In conjunction with the limiting groove 113, a limiting protrusion is formed on the pressure control part. Fig. 20 is a schematic diagram showing the main structure of the pressure control unit in the fourth embodiment, see Fig. 20 The limiting protrusion 114 is a protrusion formed on the limiting widening portion 108 of the pressure control portion 300. Therefore, when the first housing 100 and the pressure control portion 300 are combined, the limiting protrusion 114 can be inserted into the limiting groove 113 to achieve the fixing of the relative positions of the first housing 100 and the pressure control portion 300.

[0098] In the calibration of the aforementioned relative position, the principle to be followed is to keep the nail pressing piece in the pressure control part 300 facing the nail output direction determined by the nail output port of the second shell and the preparatory position of the suture nail when the first shell 100 and the pressure control part 300 are limited. Therefore, the position of the aforementioned limiting groove 113 should also be configured according to this principle.

[0099] In other embodiments, the limiting protrusion 114 on the limiting widening portion 108 of the pressure control portion 300 may also be a retractable structure, which can be immersed in the limiting widening portion 108 under pressure, so that the pressure control portion 300 can rotate in the first inner cavity until the limiting protrusion 114 is rotated to face the limiting groove 113, thereby releasing the pressure state and extending into the limiting groove 113. In a further solution, it is obvious that the limiting groove in the first inner cavity may also be in other forms, for example, a limiting countersunk hole that is adapted to the specifications of the limiting protrusion 114.

[0100] On this basis, let's look at the calibration structure between the first shell and the second shell. As described in the skin stapler structure described in Examples 1 to 3, the first shell and the second shell are matched by the hook on the second shell and the slot at the bottom of the first shell. In fact, it is usually difficult to ensure a tight fit between the hook and the slot, and under the action of the assembly force, the second shell can still rotate excessively relative to the first shell. Fig.21 This is a partial enlarged view showing Fig.19 The local enlarged structure of part A in the middle, see Fig.21 In the fourth embodiment of the present invention, a snap-in 1043 cooperating with the snap-in structure is formed in the snap-in slot 1042 formed in the bottom connecting portion 104 of the first shell 100, that is, the snap-in can be interlocked with the snap-in 1043 structure to prevent the second shell from excessively rotating relative to the first shell.

[0101] By combining the above two limited position designs, or any one of them, and cooperating with the existing method of inserting the pressure nail piece into the second inner cavity of the first shell for limiting, the relative positions of the first shell and the pressure control part, the first shell and the second shell can be further calibrated to ensure that the force direction can be consistent with the nail output direction. When suturing, the operator only needs to refer to the matching of the fingertip surface with the arc surface of the pressure end 101 of the pressure control part 300, and through the transparent structure at the bottom of the stapler, the nail output port can be accurately fitted with the suturing position.

[0102] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A skin stapler, comprising: The first shell is a columnar member extending in the direction of stapler ejection and includes at least one pressure-bearing control part for controlling stapler ejection, the pressure-bearing control part extending from one end of the inner cavity of the first shell to the other end, a part of which extends from the end through hole of the first shell, the pressure-bearing control part including a pressure-bearing end, a connecting rod extending from the pressure-bearing end, and a staple pressing piece arranged at one end of the connecting rod; A second shell, the second shell and the first shell are combined to form a separable stapler shell structure, a nail outlet corresponding to the nail outlet direction is formed on the second shell, and a transparent platform-shaped connecting portion is formed at the bottom of the first shell, and the connecting portion forms an inner concave connecting port consistent with the transparent second shell; as well as, The second shell also includes a groove-shaped nail storage portion, the nail outlet is located at the bottom of the nail storage portion along the nail outlet direction, and at least one set of nail pushing structures is arranged in the nail storage portion. The nail pushing structure is configured to include at least one movable part pushed by a prestressed elastic component so that the suture nail maintains a tendency to be pushed toward the nail outlet, wherein, The pressure control part is provided with a pressure nail at one end close to the second shell. Pick A force is applied to the pressure control part toward the suturing position by pressing, so that the nail extraction direction is consistent with the force direction of the pressure control part, and the nail pressing member is displaced toward the nail outlet, and the suture nail is pressed out from the nail outlet to make the skin fit.

2. The skin stapler according to claim 1, wherein: The nail storage portion comprises: At least one baffle pair, wherein the baffle pair is configured as follows: two baffles are arranged opposite to each other and are respectively close to a side groove wall of the nail storage portion, and a gap is formed between the two baffles and the groove wall to form a slideway for the suture nail to slide, wherein: The slideway extends along the groove direction of the nail storage portion and extends to the nail outlet position, the plate end surface of the baffle plate close to the nail outlet is flush with the nail outlet, the nail pushing structure pushes the suture nail to be output to a preparatory position corresponding to the nail outlet, the nail pressing piece is displaced toward the nail outlet and comes into contact with the suture nail to be output at the preparatory position.

3. The skin stapler according to claim 2, wherein: The push pin structure comprises: A fixing member, which is detachably plugged and fixed to the second shell, and is formed with a first connecting protrusion extending along the direction of the slot body; A movable member, a second connecting protrusion facing the first connecting protrusion is formed on one side surface of the movable member, wherein: The prestressed elastic component is fixed by the first connecting protrusion and the second connecting protrusion, and the movable member is driven by the prestressed elastic component to abut against the suture nail and drive the suture nail to maintain a tendency to advance toward the preparation position.

4. The skin stapler according to claim 3, wherein: The movable member is configured to form recessed openings on both sides that match the slideway, so that the movable member and the suturing nail slide along the slideway together.

5. The skin stapler according to claim 4, wherein: The central axis of the first shell is not coaxial with the central axis of the second shell, so that the central directions of the first shell and the second shell are offset.

6. The skin stapler according to claim 1, wherein: The nail storage portion comprises: Two groups of baffle pairs, each group of baffle pairs is configured as follows: the two baffles are arranged opposite to each other and are respectively close to a side groove wall of the nail storage portion, and a gap is formed between the two baffles and the groove wall to form two slideways for the suture nails to slide, wherein: The two sets of baffle pairs are respectively located on both sides of the nail outlet along the extension direction of the nail storage groove body, the two slideways and the two baffle pairs extend in the same direction, and each extends until its plate end surface close to the nail outlet is flush with the nail outlet, and, It includes two groups of nail pushing structures cooperating with two groups of baffles, and the two groups of nail pushing structures are configured as follows: two prestressed elastic components push two movable parts to move relative to each other along the extension direction of the groove body, and push the suture nail to be ejected to a preparation position corresponding to the nail outlet, and the nail pressing piece is displaced toward the nail outlet and comes into contact with the suture nail to be ejected at the preparation position.

7. The skin stapler according to claim 6, wherein: The pin pushing structure includes two pin pushing parts arranged opposite to each other, which are defined as a first pin pushing part and a second pin pushing part, wherein: The first nail pushing part includes: a first fixing member inserted and fixed with the second housing, and a first movable member abutting against the prestressed elastic component, a group of fixing protrusions facing each other are formed on the first fixing member and the first movable member, and the prestressed elastic component is fixed by two fixing protrusions; The second nail pushing part comprises a second movable part which is consistent with the first movable part. A group of fixing protrusions facing each other are formed on the second movable part and the end of the groove of the nail storage part to fix the prestressed elastic component.

8. The skin stapler according to any one of claims 2 to 7, wherein: The first shell has two levels of inner cavities, which are defined as a first inner cavity and a second inner cavity, respectively. A limiting flange is formed between the two levels of inner cavities. The extension direction of the second inner cavity is consistent with the direction of the nail outlet. A part of the pressure control part extends in the first inner cavity, and another part extends into the second inner cavity. The nail pressing piece at the end thereof extends from the first inner cavity into the second inner cavity, and, The first inner cavity also includes an elastic component, which is configured to be compressed to have prestress, one end of which is limited by the limiting flange, and the other end is limited by the end of the pressure control part. The prestress makes the pressure control part maintain a tendency to move away from the nail outlet and be limited by the cavity wall of the first inner cavity.

9. The skin stapler according to claim 8, wherein: In the pressure control unit, The pressure-bearing end is the portion of the pressure-bearing control portion extending out of the end through hole of the first shell, and the surface of the pressure-bearing end forms an arc-shaped pressure-bearing surface; The connecting rod extends from the pressure-bearing end to the second inner cavity, and the nail pressing piece is arranged at one end of the connecting rod located in the second inner cavity, wherein, The end surface where the pressure-bearing end is connected to the connecting rod is further extended to form a limit widening portion, and the pressure-bearing control portion and the first inner cavity form a limit at the position of the limit widening portion.

10. The skin stapler according to claim 9, wherein: The end of the connecting rod located in the second inner cavity forms an inserting groove, and the nail pressing piece is adapted to the inserting groove.

11. The skin stapler according to claim 10, wherein: The first shell is a detachable structure, comprising a head end piece and a main body piece which are combined to butt joint to form the first shell, and the end through hole is formed on the surface of the head end piece.

12. The skin stapler according to claim 11, wherein: A limited countersunk hole is formed on the inner cavity wall of the first shell, and a limited protrusion is formed on the limited widening portion of the pressure control part. When the first shell is combined with the pressure control part, the limited protrusion is inserted into the limited countersunk hole to limit the position between the first shell and the pressure control part. Furthermore, the limit between the first shell and the pressure control part is configured so that when the limit protrusion is inserted into the limit counterbore, the nail pressing piece is aligned with the preparatory position.

13. The skin stapler according to claim 12, wherein: The limiting protrusion is a telescopic part and is configured to sink into the limiting widening part under pressure. When the pressure control part is rotated to the point where the limiting protrusion is opposite to the limiting countersunk hole, the limiting protrusion releases the pressure state and extends into the limiting countersunk hole.

14. The skin stapler according to any one of claims 2 to 7 and 9 to 13, wherein: The separable structure between the first shell and the second shell is: The connecting portion further forms a slot extending along the connecting port, and the second shell is formed with a hook, which engages with the slot, so that the first shell and the second shell are combined into a formed shape.

15. The skin stapler according to claim 14, wherein: On one side surface of the second shell provided with the nail storage portion, at least one slot surrounding the nail storage portion is formed, and a pair of slot wall through holes are formed on the slot wall away from the nail storage portion, and the extension direction of the two slot wall through holes is perpendicular to the recessed direction of the slot, wherein, A connecting plug is also provided in the slot, and the connecting plug is an elastic member, the hook is formed on the connecting plug, and the connecting plug also includes a connecting protrusion that cooperates with the slot wall through hole, and the elastic connection between the connecting plug and the slot is configured as follows: the connecting plug is inserted into the slot, and the two connecting protrusions thereon are kept inserted from the two slot wall through holes respectively, and protrude beyond the outer contour of the second shell.

16. The skin stapler according to claim 14, wherein: A countersunk hole is formed in the card slot, and when the second shell is docked with the connecting port of the first shell, the card hook is inserted into the countersunk hole to limit the position between the first shell and the second shell, and, The limit between the first shell and the second shell is configured so that when the hook is inserted into the countersunk hole, the nail pressing piece is aligned with the preparatory position.

17. The skin stapler according to claim 16, wherein: The bottom of the nail outlet is formed with a forming plate in the same direction as the opening thereof, and a nail removal opening offset from the nail outlet. When the nail pressing piece is displaced toward the nail outlet, the suture nail to be produced is pressed from the preparation position to the forming plate for forming, and is pressed out from the nail removal opening, wherein: A gap is formed between the forming plate and the nail removal opening so that the suture nail can be pushed out from the gap.

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