CN112137667B

CN112137667B - Nail box assembly with hemostatic agent stored therein

Info

Publication number: CN112137667B
Application number: CN201910576357.7A
Authority: CN
Inventors: 郭毅军; 赖钒心; 张伟; 张兴伟; 吴治中; 杨松
Original assignee: Chongqing Xishan Science and Technology Co Ltd
Current assignee: Chongqing Xishan Science and Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2021-10-08
Anticipated expiration: 2039-06-28
Also published as: CN112137667A

Abstract

The invention provides a nail box assembly for storing hemostatic, which comprises a nail anvil, a nail bin and a cutting knife, wherein the nail anvil comprises a nail abutting seat and a cover body connected with the nail abutting seat, the cover body is positioned on one side of the nail abutting seat, which is far away from the nail bin, and encloses an accommodating space with the nail abutting seat, a liquid storage bin for storing the hemostatic is arranged in the accommodating space, the hemostatic is stored in the liquid storage bin, the nail box assembly also comprises an executing component for opening the liquid storage bin, a flow guide channel for guiding the flow of the hemostatic is arranged on the cutting knife along the cutting direction, when the cutting knife is pushed to cut along the cutting direction, the executing component opens the liquid storage bin to enable the hemostatic to flow out of the liquid storage bin, and the flow guide channel guides the hemostatic to flow to the position of the cutting knife after cutting. According to the invention, the liquid storage bin is arranged on the nail anvil to store the hemostatic agent, and the opening of the liquid storage bin and the guiding of the hemostatic agent are realized through the movement of the cutting knife, so that the hemostatic agent can flow to a cut track along a specified flow channel to assist tissue hemostasis.

Description

Nail box assembly with hemostatic agent stored therein

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a nail box assembly storing a hemostatic agent.

Background

Linear cutting staplers are widely used in surgical procedures for cutting and stapling of tissue after cutting. The staple cartridge component of the linear cutting anastomat generally comprises a staple cartridge, a staple anvil, suturing staples, a staple pusher, a cutting knife and the like, wherein during operation, the cutting knife cuts off redundant tissues, and the suturing staples are pushed to the staple anvil through the staple pusher to suture the cut tissues.

In order to reduce tissue bleeding, the nail box is attached with a hemostatic material, which is a trend of the current anastomat, and the cut and suture positions of the cut tissue are hemostatic through the hemostatic material; in the prior art, no record is provided for storing the blood stopping device in the nail box, or the storage mode of the blood stopping device on the nail box is complicated and inconvenient to operate. Meanwhile, under the condition that the blood stopping part is stored in the nail box, when the cutting knife moves forwards to cut, the blood stopping part can be extruded towards two sides, and the problem that the supply of the hemostatic liquid at the tissue incision is not in place or is not uniform exists, so that the hemostatic effect is influenced.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a magazine assembly storing hemostatic agents, which can store the hemostatic agents and guide the flow of blood after the stored hemostatic agents are opened, so as to facilitate the auxiliary hemostasis.

In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:

a nail box component stored with hemostatic comprises a nail anvil, a nail box and a cutter, wherein the nail anvil and the nail box form a facing relation, and clamps tissues when closing, the nail anvil comprises a nail abutting seat and a cover body connected with the nail abutting seat, the front surface of the nail abutting seat faces the nail bin, the cover body is positioned at one side of the nail abutting seat departing from the nail bin, and forms a containing space with the nail abutting seat, a liquid storage bin is arranged in the containing space, hemostatic is stored in the liquid storage bin, the nail box component also comprises an executing component used for opening the liquid storage bin, a flow guide channel used for guiding the flow direction of the hemostatic agent is arranged on the cutting knife along the cutting direction, and when the cutting knife is pushed to cut along the cutting direction, the executing component opens the liquid storage bin to enable the hemostatic agent to flow out, and the flow guide channel guides the hemostatic agent to flow to the position after the cutting knife cuts.

In the structure, the liquid storage bin is arranged between the nail abutting seat and the cover body, and is more convenient to arrange relative to the arrangement on the nail bin or other positions; the liquid storage bin is opened in a destructive or non-destructive mode through the execution component, so that the hemostatic agent flows into a space defined by the nail abutting seat and the cover body, and then the hemostatic agent is extruded when the cutting knife moves, so that the flowing hemostatic agent flows to a proper position along the flow guide channel, for example, to a cut part of the cut tissue; because the hemostatic agent can flow to the cutting back track along the fixed flow channel, the condition that the hemostatic agent is not supplied in place is avoided, the supply uniformity of the hemostatic agent is improved, and the hemostatic effect is ensured.

Optionally, the actuating member is provided on the cutting blade; or the executing component is a component which is linked with the cutting knife; or the actuating member is a separate component from the cutting blade.

Optionally, a portion of the cutting blade is located within the receiving space, the actuating member and the flow guide channel being both disposed on this portion.

Optionally, the liquid storage bin is arranged on the inner wall of the cover body, between the cover body and the nail abutting seat or on the nail abutting seat.

Optionally, the actuating member opens the reservoir by crushing or cutting.

Optionally, the actuating member has a cutting edge which severs the reservoir when the cutting knife is moved forwardly; or the liquid storage bin is provided with a weakening structure, and when the cutting knife moves forwards, the executing component extrudes the liquid storage bin to break the liquid storage bin from the weakening structure.

Optionally, the liquid storage bin is composed of a cover body and a bottom shell connected to the inner wall of the cover body, and a weakening structure is arranged on the bottom shell.

Optionally, one side of the actuating member facing the liquid storage bin and/or one side of the liquid storage bin facing the actuating member are/is provided with an inclined pressing guide surface, and when the actuating member presses the liquid storage bin through the pressing guide surface, the liquid storage bin is made to approach the cover body.

Optionally, the longitudinal cross-sectional area of the flow guide channel decreases from front to back; and the inner wall of the flow guide channel is a conical surface or at least one surface is an inclined surface.

Optionally, cutting grooves for the advancing of a cutting knife are correspondingly arranged on the nail pushing seat and the nail bin, the cutting knife is in clearance fit with the cutting grooves, and the flow guide channel enables the hemostatic to flow to the cutting grooves of the nail pushing seat.

Optionally, the top of the cutting knife extends into the accommodating space, the top extends towards two sides to form an extension part, the extension part is located on one side, away from the nail bin, of the nail abutting seat, the flow guide channel is arranged on the extension part, and during cutting, the extension part presses on the nail abutting seat.

Optionally, the flow guide channel is a flow guide groove which penetrates through the extending portion from front to back, the flow guide groove is formed in one surface, facing the nail abutting seat, of the extending portion, and the opening side of the flow guide groove is communicated with the cutting groove of the nail abutting seat; or the flow guide channel is a flow guide hole which penetrates through the extending part from front to back.

Optionally, the center line of the flow guide channel is parallel to the cutting groove of the nail abutting seat; or the flow guide channel is inclined in the horizontal direction relative to the cutting groove of the nail abutting seat and gradually approaches the cutting knife from front to back; or the flow guide channel is inclined in the vertical direction and gradually approaches the cutting groove of the nail pushing seat from the front to the back.

As described above, the present invention has the following advantageous effects: the liquid storage bin is arranged between the nail abutting seat and the cover body, and is more convenient to arrange relative to the arrangement on the nail bin or other positions; the liquid storage bin is opened in a destructive or non-destructive mode through the executing component on the cutting knife, so that the hemostatic agent flows into a space surrounded by the nail abutting seat and the cover body, and then the hemostatic agent is extruded when the cutting knife moves, so that the flowing hemostatic agent flows to a proper position along the flow guide channel, for example, to a cut part of the cut tissue; because the hemostatic agent can flow to the cutting back track along the fixed flow channel, the condition that the hemostatic agent is not supplied in place is avoided, the supply uniformity of the hemostatic agent is improved, and the hemostatic effect is ensured.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the invention (with the reservoir open);

FIG. 2 is a perspective view of an embodiment of the present invention (with the cover omitted);

FIG. 3 is an exploded view of an embodiment of the present invention;

FIG. 4 is a schematic structural view of a cutting blade (guiding groove) according to an embodiment of the present invention;

FIG. 5 is a view A-A of FIG. 4;

FIG. 6 is a schematic view of the cutting blade according to an embodiment of the present invention (rectangular guiding hole);

FIG. 7 is a schematic view of the cutting blade according to an embodiment of the present invention (circular guide hole, horizontal slant);

FIG. 8 is a schematic view of the cutting blade according to an embodiment of the present invention (the guiding hole is inclined with a higher front part and a lower rear part);

FIG. 9 is a schematic sectional view of the liquid storage bin at different angles according to the embodiment of the present invention;

FIG. 10 is an exploded view of one embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of one embodiment of the present invention (omitting the anvil and the internal cartridge structure);

FIG. 12 is an exploded view of the cover and anvil in connection according to one embodiment of the present invention;

FIG. 13 is a cross-sectional view of a reservoir according to an embodiment of the present invention (the reservoir is defined by a cover and a bottom shell on the inner wall of the cover);

FIG. 14 is a bottom view of the reservoir of FIG. 13 according to the present invention;

FIG. 15 is a bottom view of a reservoir in accordance with another embodiment of the invention (with the weakening structure being a thinned area);

fig. 16 is a schematic structural view of an embodiment of the invention (the liquid storage bin is arranged on the nail abutting seat and is opened by cutting).

Part number description:

1-nail anvil; 11-nail abutting seats; 12-a cover body; 13-a bottom shell; 14-weakening groove; 15-extruding the guide surface; 16-thinned region; 17-a bump; 18-a groove; 19-cutting the groove; 12-a staple cartridge; 2-nail bin; 3-a cutter; 31-a blade part; 32-an extension; 33-a flow guide channel; 34-an inner wall; 36-cutting edge; 35-an executing member; 4-sealing the bin; 5-tissue; a-a liquid storage cavity; b-a gap; c-injection port.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

In this example, the front-back direction is a direction toward the patient when the surgical instrument is operated, and a direction away from the patient (i.e., a direction toward the operator) is a direction toward the back; because different operation directions are possible when the tissue 5 is clamped, the nail abutting seat 1 and the nail bin 2 are in different relative positions, and the up-down direction in the embodiment is explained by that the nail abutting seat 1 is positioned above the nail bin 2 when the tissue 5 is clamped; in practice, the magazine 2 may be located above the anvil 1, and the positional relationship is opposite to the above-below relationship in this example.

Examples

As shown in fig. 1 to 5, the present example provides a staple cartridge assembly storing hemostatic, including a staple cartridge body and a cutting knife 3 mounted on the staple cartridge body, wherein the staple cartridge body includes a staple anvil 1 and a staple cartridge 2, wherein the staple anvil 1 and the staple cartridge 2 can be closed and opened, a staple and a staple pusher are disposed in the staple cartridge 2, and clamp tissue when closed, the cutting knife 3 cuts the tissue along the cutting direction, the staple pusher pushes the staple to move towards a staple outlet hole, so that the staple is pushed out of the staple cartridge from the staple outlet hole, and the staple pushed out of the staple cartridge is shaped after abutting against the staple anvil 1, thereby completing the suturing.

The nail anvil 1 comprises a nail abutting seat 11 and a cover body 12 which are connected, the front surface of the nail abutting seat 11 faces the nail bin 2, one surface of the nail abutting seat 11 facing the nail bin 2 is a sewing nail forming surface, the cover body 12 is positioned on one side of the nail abutting seat 11 departing from the nail bin 2, namely as shown in fig. 1, the nail abutting seat 11 is positioned above the nail bin 2, the cover body 12 is positioned above the nail abutting seat 11, and the cover body 12 and the nail abutting seat 11 can be fixed in a clamping, bonding or welding mode and the like; the cover body 12 and the nail abutting seat 11 enclose a containing space, a liquid storage bin (or called container) for storing the hemostatic agent is arranged in the containing space, a liquid storage cavity A is formed in the liquid storage bin, the hemostatic agent is stored in the liquid storage bin, and the liquid storage bin is in a closed state in a normal state; an executing component 35 for opening the liquid storage bin is arranged or connected on the cutting knife 3, and after the liquid storage bin is opened, the hemostatic flows into or is filled in a space enclosed by the cover body 12 and the nail abutting seat 11; in order to facilitate the hemostatic agent to flow into the tissue incision or suture, a flow guide channel for guiding the flow of the hemostatic agent is arranged on the cutting knife 3 along the cutting direction, and when the cutting knife 3 is pushed forward along the cutting direction (forward), the executing component 35 opens the liquid storage bin to enable the hemostatic agent to flow out of the liquid storage bin, and the flow guide channel 33 guides the hemostatic agent to flow to the position of the cutting knife 3 after cutting. I.e. behind the cutting position of the cutting knife 3 and/or behind the cutting knife.

The cover body 12 and the nail abutting seat 11 are connected to form a substantially closed space so as to accommodate the hemostatic agent flowing out of the liquid storage bin, and the hemostatic agent can flow along the flow guide channel 33 or the gap between the cutting knife 3 and the nail box body after the cutting knife 3 extrudes the hemostatic agent. The hemostatic agent is blood or hemostatic plasma.

The reservoir is disposed between the nail seat 11 and the cover 12, for example, the reservoir can be mounted on the inner wall of the cover 12, between the nail seat 11 and the cover 12, or on the back of the nail seat 11. Compared with the arrangement on the nail bin 2 or other positions, the arrangement is more convenient, the existing cutting knife is used as an actuating mechanism to open the liquid storage bin, and the number of the additionally arranged parts is less; the liquid storage bin is opened in a destructive or non-destructive manner through the executing component 35 on the cutting knife 3, so that the hemostatic agent flows into a space surrounded by the nail abutting seat and the cover body, and then the hemostatic agent is extruded when the cutting knife moves, so that the flowing hemostatic agent flows to a proper position along the flow guide channel, for example, to a cut part of the cut tissue; because the hemostatic agent can flow to the cutting back track along the fixed flow channel, the condition that the hemostatic agent is not supplied in place is avoided, the supply uniformity of the hemostatic agent is improved, and the hemostatic effect is ensured. According to the hemostatic device, the structure for opening the liquid storage bin and the structure for guiding the flow direction of the hemostatic are both arranged on the cutting knife, the opening of the liquid storage bin and the guiding of the hemostatic are realized through the movement of the cutting knife, a plurality of actions are completed through the same driving mechanism, the mounting structure is simplified, and the product arrangement is more compact.

In one embodiment, a portion of the cutting blade 3 is located in the receiving space (i.e. above the anvil 11), and both the actuating member 35 and the flow guide channel 33 are provided on this portion. Specifically, in this example, the nail abutting seat 11 and the nail bin 2 are correspondingly provided with a cutting groove 19 for the advancing of the cutting knife 3, and the cutting knife 3 is partially positioned in the cutting groove and can move in the cutting groove along the cutting direction; the top of the cutting knife 3 is positioned above the nail abutting seat 11, and the executing component 35 and the flow guide channel 33 are both provided with the top of the cutting knife 3.

In one embodiment, the cross-sectional area of the flow guide channel 33 is larger at the front and smaller at the back, and the flow guide channel 33 becomes smaller from the front to the back, so that when the cutting blade 3 moves forward, the flow guide channel 33 presses the hemostatic agent, thereby facilitating the hemostatic agent to flow backward along the flow guide channel 33 to the position of the cut tissue 5, as shown in fig. 5. Specifically, from front to back, under the condition that the transverse dimension of the flow guide channel is not changed, the longitudinal dimension is narrowed from width; under the condition that the longitudinal size of the flow guide channel is not changed, the transverse size is narrowed from width; or both the longitudinal and transverse dimensions may be wide or narrow.

Specifically, the flow guide channel 33 is gradually reduced from front to back, and the inner wall 34 of the flow guide channel 33 is a conical surface, or when the cross section of the flow guide channel 33 is polygonal, at least one surface of the inner wall is an inclined surface; the guide passage 33 may be a guide groove that is circumferentially open, as shown in fig. 4; or the guide channel 33 is a guide hole with a closed circumference as shown in fig. 6 to 8. The cross-sectional profile of the flow guide channel 33 is C-shaped, rectangular, circular, etc.

In this example, the nail abutting seat 11 is located above the nail bin 2, and the flow guide channel 33 is arranged on the part of the cutting knife 3 extending out of the nail abutting seat 11; the flow guide channel 33 is located above the nail abutting seat 11 (i.e. the side of the nail abutting seat 11 facing away from the nail cartridge 2), and the flow guide channel 33 guides the hemostatic agent to flow to the cutting groove 19 of the nail abutting seat 11.

In fig. 1, the side of the nail abutting seat 11 facing away from the nail bin 2 is referred to as the upper side of the nail abutting seat 11; if the clamping state shown in fig. 1 is turned over by 180 degrees during operation, one side of the nail abutting seat 11 departing from the nail bin 2 is referred to below the nail abutting seat 11; if the surface of the nail abutting seat 11 facing the nail magazine 2 is the front surface, the surface facing away from the nail magazine 2 is the back surface.

In one embodiment, the top of the cutting blade 3 extends to two sides to form an extension 32, the extension 32 is located above the nail seat 11, the cutting edge 31 of the cutting blade 3 for cutting tissue is located below the nail seat 11, the extension 32 on two sides are provided with a flow guide channel 33, and the flow guide channel 33 guides the hemostatic agent from two sides of the cutting blade 3 to the middle. During cutting, the extension 32 presses on the nail seat 11 and plays a role of guiding and tensioning the nail seat 11 and the nail bin 2. And the cutting knife 3 is in clearance fit with the cutting groove 19 of the nail pushing seat 11, so that the hemostatic agent flows down along the clearance B and flows to the cut of the cut tissue 5, the position to be sutured and the like to stop bleeding.

In one embodiment, the flow guide channels 33 are two or more and are symmetrically arranged with respect to the cutting blade 3; the center line of the flow guide channel 33 is parallel to the cutting groove 19; i.e. not offset in the horizontal and vertical directions, but become progressively smaller from front to back; in one embodiment, the flow guide channel 33 is inclined in the horizontal direction with respect to the cutting groove 19 and gradually gets closer to the cutting blade 3 from front to back, as shown in fig. 7; this configuration facilitates the flow of the hemostatic agent towards the cutting groove 19 of the anvil 11.

In one embodiment, the flow guide channel 33 is a flow guide groove formed on the lower surface (the surface contacting with the nail abutting seat 11) of the extension 32, the flow guide groove penetrates the extension 32 from front to back, and the flow guide groove is of a semi-closed structure in the circumferential direction, as shown in fig. 4 and 5; of course, it can also be described that two sides of the extending portion 32 are turned downward to form a turning portion, the turning portion gradually draws close to the cutting knife from front to back, and the turning portion, the extending portion and the cutting knife together enclose the diversion trench. To further facilitate the hemostatic agent entering the incision site of the tissue 5, the opening at the bottom of the flow guide groove communicates with the cutting groove 19 of the anvil 11.

In one embodiment, the flow guiding channel 33 is a flow guiding hole penetrating the extension 32 from front to back, and the flow guiding hole is rectangular or circular and gradually becomes smaller from front to back, so as to guide the hemostatic agent to approach the cutting blade 3, as shown in fig. 6 and 7; for the convenience of flow guiding, the rear end of the flow guiding hole can be close to or communicated with the cutting groove 19 of the nail abutting seat 11.

In one embodiment, the flow guide channel 33 is one, and is disposed on the top of the cutting knife 3, the flow guide channel 33 is close to the cutting path of the cutting knife 3, specifically, is right above the cutting groove 19 of the nail abutting seat 11, and when the up-down positional relationship between the nail abutting seat 11 and the nail magazine 2 is aligned, the flow guide channel 33 is right below the cutting groove 19 of the nail abutting seat 11. As shown in fig. 8, the single guide passage 33 is tapered from front to rear; for drainage, the structure can be designed to be inclined downwards from front to back (the front part is high and the back part is low), namely, the structure gradually draws close to the cutting groove 19 of the nail abutting seat 11 from front to back.

To facilitate the drainage of the hemostatic agent to the post-cutting position and avoid being squeezed by the cutting blade 3, the rear end of the flow guide channel 33 may extend beyond the rear end of the cutting blade 3 (i.e., beyond the rear end of the portion of the cutting blade 3 located in the cutting groove 19), or may be flush therewith.

Before cutting, the tissue 5 is tightly attached to the lower surface of the nail abutting seat 11, which means that the cover 12 and the nail abutting seat 11 enclose a completely closed space, and the hemostatic agent cannot flow down along the cutting groove 19 of the nail abutting seat 11; when cutting, the cutting blade 3 may press the hemostatic agent to both sides, and may also make the hemostatic agent not reach a desired position or be uneven. Referring to fig. 1, in this embodiment, the nail abutting seat 11 and the nail bin 2 clamp the tissue 5, and after the hemostatic agent flows out of the liquid storage bin, the hemostatic agent is located in a space (which may be full or not full) enclosed by the cover 12 and the nail abutting seat 11 and can flow; when the cutting knife 3 moves forward to cut the tissue 5, the extension part 32 (or head part and top part) of the cutting knife 3 extrudes the hemostatic agent to enable the hemostatic agent to flow backwards along the flow guide channel 33, so that the hemostatic agent is guided to the position after cutting, and the hemostatic agent flows down along the cutting groove 19 and the gap B which can support the nail seat 11 because the tissue 5 is cut, and hemostasis is carried out on the incision of the tissue 5.

The cutting knife 3 is provided with a flow guide channel 33, and the hemostatic agent is extruded when the cutting knife 3 moves, so that the stored hemostatic agent flows to a proper position along the flow guide channel 33, such as to the incision of the cut tissue 5; because the hemostatic agent can flow to the cut track (namely the cutting groove 19 of the nail pushing seat 11) along the fixed flow channel, the condition that the hemostatic agent is not supplied in place is avoided, the supply uniformity of the hemostatic agent is improved, and the hemostatic effect is ensured.

In one embodiment, the actuating member 35 may break open the reservoir by squeezing, for example, by squeezing the reservoir when the actuating member 35 acts on the reservoir. In another embodiment the actuating member 35 may open the reservoir by cutting, i.e. the actuating member is provided with a cutting edge 36, which cuts the reservoir when the actuating member acts on the reservoir.

In this example, the actuating member 35 is formed by a part of the cutting blade 3, and the actuating member 35 is located in a space enclosed by the nail abutting seat 11 and the cover body 12, so that the opening of the liquid storage bin is realized while cutting; therefore, the parts for driving the actuating mechanism to act can be saved, and the structure is simplified.

In one embodiment, the actuating member is a component connected to the cutting blade 3 and arranged in linkage with the cutting blade 3; the component is driven to move by the movement of the cutting knife 3, and the driving structure is simplified.

In one embodiment, the executing component is a component independent from the cutting blade 3, i.e. the anvil 1 or the nail bin 2 is provided with an executing component for executing the action of opening the liquid storage bin, and the executing component is independent from the movement of the cutting blade 3 and is provided with a driving mechanism matched with the executing component.

In one embodiment, the reservoir is disposed on an inner wall of the cover 12, as shown in FIG. 13; in another embodiment, the reservoir is arranged on the back of the nail anvil 11, as shown in fig. 16; it is also possible to provide a separate container which is mounted between the cover 12 and the anvil 11.

In this example, the top of the cutting knife 3 extends out of the nail abutting seat and is positioned between the cover body 12 and the nail abutting seat 11, the executing component 35 is arranged at the top of the cutting knife 3, and the executing component 35 is formed at the front end of the top of the cutting knife 3; in order to increase the pressing force of the actuating member 35, the front end of the extension portion 32 also constitutes the actuating member 35; namely, the guide channel 33 and the actuating member 35 are both arranged at the part of the cutting blade 3 extending into the accommodating space, namely, the orientation in this example is the top part of the cutting blade 3, the actuating member 35 is arranged at the front side of the guide channel 33, and after the actuating member 35 opens the liquid storage bin, the hemostatic flows along the guide channel 33 to the cutting groove 19 of the nail seat 11.

In particular, the actuating member 35 has a cutting edge 36 by which the magazine is cut when the cutting blade 3 moves forward, as shown in fig. 16, wherein the magazine is constituted by a closed magazine 4 arranged on the staple abutment; of course, the cutting knife 3 can extrude the liquid storage bin when the hemostatic agent is cut, so that the hemostatic agent can flow out conveniently.

In another embodiment, the reservoir is provided with a weakening structure with a strength weaker than that of other parts of the reservoir, and when the cutting knife 3 moves forward, the pushing force generated by the actuating member 35 of the cutting knife 3 pushes against the reservoir, so that the reservoir is broken from the weakening structure, or the reservoir can be cut from the weakening structure.

In this example, the liquid storage bin is composed of a cover 12 and a bottom case 13 connected to the inner wall of the cover 12, the bottom case 13 can be integrally formed with the cover 12, the edge of the cover 12 is clamped or bonded with the side surface of the nail abutting seat 11, in this example, the nail abutting seat 11 is installed in the lower space of the cover 12 and is located below the bottom case 13 of the liquid storage bin, the inner wall of the lower part of the cover 12 is provided with a groove 18, the corresponding side wall of the nail abutting seat 11 is provided with a protrusion 17, the protrusion 17 is clamped in the groove 18, and the cover 12 and the nail abutting seat 11 are connected together, as shown in fig. 6; other embodiments provide for the location and exchange of the grooves 18 and the projections 17.

In one embodiment, the weakening structure is a thinned area 16 provided on the bottom shell 13, i.e. a portion of the bottom shell 13 has a thinner thickness than other areas, and is broken from the thinned area 16 when the reservoir is compressed, as shown in fig. 15.

In one embodiment, the weakening structure is a weakening groove 14 provided on the bottom case 13, and the weakening groove 14 is a complete turn or a non-complete turn and is broken from the weakening groove 14 when the cartridge is compressed, as shown in fig. 13 and 14.

In one embodiment, a portion of bottom shell 13, which is made of a different material than the rest of bottom shell 13 and has a lower strength than the rest of bottom shell 13, constitutes the weakening structure from which the region 16 is broken when the reservoir is squeezed, as shown in FIG. 15, which is a region made of a weaker material.

In order to avoid the liquid storage bin which is broken after extrusion from obstructing the forward propulsion of the cutting knife 3 and being beneficial to the outflow of the hemostatic; the executing component 35 is higher than the lowest position of the liquid storage bin, one side of the executing component 35 facing the liquid storage bin (namely the front end of the executing component 35) is an inclined extrusion guide surface, the front part of the extrusion guide surface is low and the rear part of the extrusion guide surface is high, and the extrusion guide surface plays a role in guiding and reducing resistance, so that the bottom shell 13 is folded towards the cover body 12 when being extruded, the bleeding of the hemostatic agent is facilitated, and the situation that the bottom shell 13 obstructs the pushing of the cutting knife 3 is avoided.

In another embodiment, the side of the reservoir facing the actuating member 35 (the rear end of the reservoir) is an inclined pressing guide surface 15, and the pressing guide surface 15 is low in front and high in rear, as shown in fig. 13 and 14.

In this example, the front end of the actuating member 35 and the rear end of the reservoir are provided with inclined pressing guide surfaces, as shown in fig. 2 and 11. In order to facilitate the injection of the hemostatic agent into the liquid storage bin, an injection port C is provided on the liquid storage bin, and the injection port C is provided with a sealing cover or a plug, as shown in fig. 11.

According to the invention, the liquid storage bin is arranged on the nail anvil, and is more convenient to arrange relative to the arrangement on the nail bin or other positions; after the cutting is finished, the liquid storage bin is opened in a destructive or non-destructive mode through the executing component, so that the hemostatic agent can flow into the cutting groove and flow into the gap between the nail abutting seat and the nail bin along the cutting groove 19 of the nail abutting seat 11, and the hemostatic agent can stop bleeding of the cut tissue and the tissue to be sutured. Because the hemostatic agent can flow to the cutting back track along the flow guide channel, the condition that the hemostatic agent is not supplied in place is avoided, the supply uniformity of the hemostatic agent is improved, and the hemostatic effect is ensured. According to the hemostatic device, the structure for opening the liquid storage bin and the structure for guiding the flow direction of the hemostatic are both arranged on the cutting knife, the opening of the liquid storage bin and the guiding of the hemostatic are realized through the movement of the cutting knife, a plurality of actions are completed through the same driving mechanism, and the installation structure is simplified.

The invention can assist tissue hemostasis, has a certain effect on preventing oral leakage, and can be suitable for symptoms with weak blood coagulation ability.

Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A nail box component for storing hemostatic comprises a nail anvil, a nail box and a cutter, wherein the nail anvil and the nail box form a facing relation and clamp tissues when being closed; the method is characterized in that: the nail anvil comprises a nail abutting seat and a cover body connected with the nail abutting seat, the nail abutting seat faces towards the nail bin, the cover body is located on one side, deviating from the nail bin, of the nail abutting seat, a containing space is formed by the nail abutting seat in a surrounding mode, a liquid storage bin is arranged in the containing space, hemostatic is stored in the liquid storage bin, the nail box assembly further comprises an execution component used for enabling the liquid storage bin to be opened, a flow guide channel used for guiding the flow direction of the hemostatic is arranged on the cutting knife along the cutting direction, and when the cutting knife pushes the cutting knife along the cutting direction, the liquid storage bin is opened through the execution component to enable the hemostatic to flow out, and the flow guide channel guides the flow direction of the hemostatic to the position after the cutting knife cuts.

2. The magazine assembly storing hemostatic agents of claim 1, wherein: the executing component is arranged on the cutting knife; or the executing component is a component which is linked with the cutting knife; or the actuating member is a separate component from the cutting blade.

3. The magazine assembly storing hemostatic agents of claim 1, wherein: a part of the cutting knife is positioned in the accommodating space, and the executing component and the flow guide channel are arranged on the part.

4. The magazine assembly storing hemostatic agents of claim 1, wherein: the liquid storage bin is arranged on the inner wall of the cover body, between the cover body and the nail abutting seat or on the nail abutting seat.

5. The magazine assembly storing hemostatic agents of claim 1, wherein: the executing component opens the liquid storage bin in a crushing or cutting mode.

6. The magazine assembly storing hemostatic agents of claim 5, wherein: the executing component is provided with a cutting edge, and when the cutting knife moves forwards, the cutting edge cuts the liquid storage bin; or the liquid storage bin is provided with a weakening structure, and when the cutting knife moves forwards, the executing component extrudes the liquid storage bin to break the liquid storage bin from the weakening structure.

7. The magazine assembly storing hemostatic agents of claim 6, wherein: the liquid storage bin is composed of a cover body and a bottom shell connected to the inner wall of the cover body, and a weakening structure is arranged on the bottom shell.

8. The magazine assembly storing hemostatic agents of claim 1, wherein: the side of the execution component facing the liquid storage bin and/or the side of the liquid storage bin facing the execution component are/is provided with inclined extrusion guide surfaces, and when the execution component extrudes the liquid storage bin through the extrusion guide surfaces, the liquid storage bin is enabled to be close to the cover body.

9. The magazine assembly storing hemostatic agents of claim 1, wherein: the longitudinal section area of the flow guide channel is reduced from front to back; and the inner wall of the flow guide channel is a conical surface or at least one surface is an inclined surface.

10. The magazine assembly storing hemostatic agents of claim 1, wherein: the nail pushing seat and the nail bin are correspondingly provided with cutting grooves for the advancing of a cutting knife, the cutting knife is in clearance fit with the cutting grooves, and the guide channel enables the hemostatic to flow to the cutting grooves of the nail pushing seat.

11. The magazine assembly storing hemostatic agents of claim 10, wherein: the top of the cutting knife extends into the accommodating space, the top extends towards two sides to form an extending part, the extending part is positioned on one side, which is far away from the nail bin, of the nail abutting seat, the flow guide channel is arranged on the extending part, and when the nail abutting seat is used for cutting, the extending part is pressed on the nail abutting seat.

12. The magazine assembly storing hemostatic agents of claim 11, wherein: the guide channel is a guide groove which penetrates through the extending part from front to back, the guide groove is formed in one surface, facing the nail abutting seat, of the extending part, and the opening side of the guide groove is communicated with the cutting groove of the nail abutting seat; or the flow guide channel is a flow guide hole which penetrates through the extending part from front to back.

13. The magazine assembly storing hemostatic agents of claim 10, wherein: the center line of the flow guide channel is parallel to the cutting groove of the nail abutting seat; or the flow guide channel is inclined in the horizontal direction relative to the cutting groove of the nail abutting seat and gradually approaches the cutting knife from front to back; or the flow guide channel is inclined in the vertical direction and gradually approaches the cutting groove of the nail pushing seat from the front to the back.