A staple cartridge assembly and stapler

Abstract

The utility model relates to medical instrument technical field, specifically disclose a kind of staple cartridge assembly and anastomat, the staple cartridge assembly includes staple cartridge body, and staple cartridge body has sequentially arranged insertion section, mounting section and tail section along length direction, and insertion section is slope structure;Insertion section is provided with slope surface towards the side of butt nail seat, and slope surface is provided with flow guide groove, and flow guide groove is communicated in mounting section;Mounting section is used to install suture nail.The utility model in suture nail can be sutured or cut target tissue from mounting section, and make that tissue fluid or tissue fragment can be quickly flowed out mounting section via flow guide groove, to avoid the accumulation of tissue fluid or tissue fragment in incision site, to avoid the suture or cutting effect of suture nail is caused to influence.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a stapler assembly and a stapler. Background Technology

[0002] A surgical stapler is a medical device used in surgical procedures, primarily for connecting or closing tissues such as blood vessels and intestines. It performs suturing or cutting operations quickly and precisely through mechanical means, improving surgical efficiency and reducing patient recovery time.

[0003] Currently, the staple cartridge and anvil of a stapler can clamp the target tissue, and the staples are pushed into the target tissue for suturing or cutting by a staple pusher installed on the staple cartridge. However, the staple cartridge structure in the existing technology is simple, and when suturing or cutting the target tissue, tissue fluid or tissue fragments will accumulate at the incision site, which will affect the suturing or cutting effect of the staples. Utility Model Content

[0004] The purpose of this invention is to provide a staple cartridge assembly and stapler to solve the problem that the staple cartridge structure in the prior art is simple, and when suturing or cutting the target tissue, tissue fluid or tissue fragments will accumulate at the incision site, which will affect the suturing or cutting effect of the staples.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, this utility model provides a staple cartridge assembly, which is disposed opposite to an anvil. The anvil can be pressed against the side closer to the staple cartridge assembly. The staple cartridge assembly includes a staple cartridge body, which has an insertion section, an installation section, and a tail section arranged sequentially along its length. The insertion section has a sloping structure. The side of the insertion section facing the anvil has a slope, and the slope has a guide groove connected to the installation section. The installation section is used to install suture staples.

[0007] As an alternative to the above-mentioned staple cartridge assembly, the installation section is provided with a flow channel, which runs through the entire length of the section and is connected to the guide channel.

[0008] As an alternative to the above-mentioned staple cartridge assembly, an accumulation groove is provided on the side of the insertion section away from the installation section, and the accumulation groove is connected to the flow guide groove.

[0009] As an alternative to the above-mentioned staple cartridge assembly, the side end of the mounting section is provided with anti-slip protrusions along the width direction.

[0010] As an alternative to the aforementioned staple cartridge assembly, the anti-slip protrusion is provided with an anti-slip groove.

[0011] As an alternative to the aforementioned staple cartridge assembly, the anti-slip groove is inclined downwards from one side near the middle of the mounting section toward the other side away from the middle of the mounting section.

[0012] As an alternative to the above-mentioned staple cartridge assembly, the anti-slip groove includes a plurality of grooves, which are spaced apart along the length of the installation section.

[0013] As an optional embodiment of the above-mentioned staple cartridge assembly, the installation section has several receiving slots, and each receiving slot is provided with a guide, and the staple is installed in the guide; the guide is used to guide the movement of the staple.

[0014] As an alternative to the above-mentioned staple cartridge assembly, the staple cartridge assembly further includes a staple pusher, which is movably disposed within the staple cartridge body along its length and is used to push the suture staples away from the guide member toward the side closer to the anchor seat.

[0015] On the other hand, the present invention provides a stapler, including the staple cartridge assembly as described above. The stapler also includes a staple cartridge seat and an anvil seat, the anvil seat being rotatably connected to the staple cartridge seat, and the staple cartridge assembly being disposed within the staple cartridge seat.

[0016] The beneficial effects of this utility model are as follows:

[0017] The staple cartridge assembly is positioned opposite the anvil. The anvil can press against the side of the staple cartridge assembly, allowing the anvil to press the target tissue onto the staple cartridge assembly when the target tissue is located between the anvil and the staple cartridge assembly. The staple cartridge assembly includes a staple cartridge body with an insertion section, an installation section, and a tail section arranged sequentially along its length. The staple cartridge assembly enters the patient's body with the insertion section as its head. The insertion section has a sloping structure, with a slope on the side facing the anvil. This creates a gap between the insertion section and the target tissue when the anvil presses against the side of the staple cartridge assembly, allowing some tissue fluid or tissue fragments to detach from the slope. Simultaneously, a drainage channel is formed on the slope, connecting to the installation section. The installation section is used to install the staples, allowing the staples to suture or cut the target tissue from the installation section. This also allows tissue fluid or tissue fragments to flow quickly out of the installation section via the drainage channel, preventing the accumulation of tissue fluid or tissue fragments at the incision site and thus avoiding any impact on the suturing or cutting effect of the staples. Attached Figure Description

[0018] Figure 1 This is a partial structural schematic diagram of the stapler provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the staple cartridge assembly provided in an embodiment of the present utility model;

[0020] Figure 3 This is a partial structural diagram of the staple cartridge assembly provided in an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Staple cartridge body; 11. Insertion section; 111. Flow guide channel; 112. Accumulation channel; 12. Installation section; 121. Flow channel; 122. Anti-slip protrusion; 1221. Anti-slip groove; 123. Receiving groove; 13. Tail section; 2. Guide component; 3. Staple seat; 4. Staple cartridge seat. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] like Figures 1-3 As shown, this embodiment provides a staple cartridge assembly, which is disposed opposite to the staple seat 3. The staple seat 3 can press against the side closer to the staple cartridge assembly, so that when the target tissue is located between the staple seat 3 and the staple cartridge assembly, the staple seat 3 can press the target tissue onto the staple cartridge assembly.

[0028] The staple cartridge assembly includes a staple cartridge body 1, which has an insertion section 11, an installation section 12, and a tail section 13 arranged sequentially along its length. The staple cartridge assembly can enter the patient's body with the insertion section 11 as the head. The insertion section 11 has a sloping structure, and the side of the insertion section 11 facing the anvil 3 has a sloping surface. When the anvil 3 is pressed towards the side close to the staple cartridge assembly, there is a gap between the insertion section 11 and the target tissue, which facilitates the detachment of some tissue fluid or tissue fragments from the sloping surface. At the same time, the sloping surface has a guide channel 111, which is connected to the installation section 12. The installation section 12 is used to install the staples, so that the staples can suture or cut the target tissue from the installation section 12, and the tissue fluid or tissue fragments can be quickly discharged from the installation section 12 through the guide channel 111 to avoid the accumulation of tissue fluid or tissue fragments at the incision site, thereby avoiding the impact on the suturing or cutting effect of the staples.

[0029] like Figure 2 and Figure 3 As shown, the installation section 12 is provided with a flow channel 121, which extends along its length and is connected to the guide channel 111. This allows tissue fluid or tissue fragments at the incision site to fall directly into the flow channel 121 when the suture staples are used to suture or cut the target tissue. The fluid then flows into the guide channel 111, expanding and facilitating the drainage of tissue fluid or fragments, further preventing accumulation at the incision site. Optionally, an accumulation groove 112 is provided on the side of the insertion section 11 away from the installation section 12. This accumulation groove 112 is connected to the guide channel 111, allowing tissue fluid or fragments flowing out of the guide channel 111 to directly settle in the accumulation groove 112, facilitating subsequent cleaning.

[0030] Furthermore, the side end of the mounting section 12 protrudes with an anti-slip protrusion 122 along its width direction. This anti-slip protrusion 122 increases the clamping area of ​​the anvil seat 3 and the staple cartridge assembly on the target tissue, improving fit stability. The anti-slip protrusion 122 has an anti-slip groove 1221. This groove allows some of the target tissue to be embedded within it, enhancing the anti-slip effect. Several anti-slip grooves 1221 are spaced apart along the length of the mounting section 12, allowing them to cooperate and further improve the anti-slip effect. Optionally, the anti-slip groove 1221 is inclined downward from the side near the middle of the mounting section 12 to the side away from the middle of the mounting section 12, so that the target tissue can fit into the inclined surface of the bottom of the anti-slip groove 1221, so that the target tissue is fully embedded in the anti-slip groove 1221, which facilitates the clamping of the target tissue by the anvil seat 3 and the staple cartridge assembly.

[0031] Furthermore, the installation section 12 has several receiving slots 123, and each receiving slot 123 is provided with a guide 2. The suture staples are installed in the guide 2, which guides the movement of the suture staples. Thus, the movement of the suture staples can be limited by the guide 2, preventing misalignment of the suture staples and affecting the suturing or cutting effect on the target tissue. At the same time, the staple cartridge assembly also includes a staple pusher, which is movable along the length direction within the staple cartridge body 1. The staple pusher is used to push the suture staples toward the side closer to the staple seat 3 and disengage them from the guide 2, so as to realize the suturing or cutting of the target tissue by the suture staples.

[0032] This embodiment also provides a stapler, such as Figure 1 As shown, the stapler includes the staple cartridge assembly as described above. The stapler also includes a staple cartridge seat 4 and an anvil seat 3. The anvil seat 3 is rotatably connected to the staple cartridge seat 4. The staple cartridge assembly is disposed inside the staple cartridge seat 4. Thus, by using the staple cartridge assembly as described above, when the staples are sutured or cut from the mounting section 12, the tissue fluid or tissue fragments can be quickly discharged from the mounting section 12 through the guide channel 111, thereby avoiding the accumulation of tissue fluid or tissue fragments at the incision site and thus avoiding affecting the suturing or cutting effect of the staples.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A staple cartridge assembly, disposed opposite a buttress seat (3), the buttress seat (3) being crimpable toward a side proximal to the staple cartridge assembly, characterized in that, The staple cartridge assembly includes a staple cartridge body (1), which has an insertion section (11), an installation section (12) and a tail section (13) arranged sequentially along its length. The insertion section (11) has a sloping structure. The side of the insertion section (11) facing the abutment seat (3) has a slope, and the slope has a guide groove (111) that is connected to the installation section (12). The installation section (12) is used to install the staples.

2. The staple cartridge assembly according to claim 1, characterized in that, The installation section (12) is provided with a flow channel (121), which is provided through the length direction and is connected to the guide channel (111).

3. The staple cartridge assembly according to claim 1, characterized in that, An accumulation groove (112) is provided on the side of the insertion section (11) away from the installation section (12), and the accumulation groove (112) is connected to the guide groove (111).

4. The cartridge assembly of Claim 1, wherein, The side end of the mounting section (12) is provided with anti-slip protrusions (122) protruding in the width direction.

5. The staple cartridge assembly according to claim 4, characterized in that, The anti-slip protrusion (122) is provided with an anti-slip groove (1221).

6. The staple cartridge assembly according to claim 5, characterized in that, The anti-slip groove (1221) is inclined downward from the side near the middle of the mounting section (12) toward the other side away from the middle of the mounting section (12).

7. The staple cartridge assembly according to claim 5, characterized in that, The anti-slip groove (1221) includes a plurality of grooves, which are spaced apart along the length of the mounting section (12).

8. The staple cartridge assembly according to any one of claims 1 to 7, characterized in that, The installation section (12) has a plurality of receiving slots (123), and each receiving slot (123) is provided with a guide (2), and the suture staple is installed in the guide (2); the guide (2) is used to guide the movement of the suture staple.

9. The staple cartridge assembly according to claim 8, characterized in that, The staple cartridge assembly also includes a staple pusher, which is movably disposed within the staple cartridge body (1) along the length direction. The staple pusher is used to push the suture staple away from the guide member (2) towards the side closer to the anchor seat (3).

10. A stapler, characterized in that, The stapler includes the staple cartridge assembly as described in any one of claims 1 to 9, and further includes a staple cartridge seat (4) and an anvil seat (3), wherein the anvil seat (3) is rotatably connected to the staple cartridge seat (4), and the staple cartridge assembly is disposed within the staple cartridge seat (4).

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