A sealed staple cartridge housing for a stapler

Abstract

The utility model discloses a sealed anastomat nail bin shell, including nail bin shell main part, the inside of nail bin shell main part is provided with the nail groove, the nail groove is provided with a plurality, the nail bin shell main part nail groove inside fixed mounting has the protection cylinder, the outside of inside lower portion of protection cylinder is provided with the inner ring groove, the inside of protection cylinder is provided with upper part sealing rubber block, the outside of upper part sealing rubber block extends into the inside of inner ring groove, the below of protection cylinder outside is provided with the outer ring groove, the inside of outer ring groove is provided with the sealing ring. It has realized the ability that the top groove has the sealed structure, has increased the practicality, thereby solved in the nail bin use process, the problem that the tissue fluid, blood etc. of easy cause in the surgical process pollute the inside of nail bin, pollute anastomosis nail, influence the follow -up suture effect.

Description

Technical Field

[0001] This utility model relates to the field of staple cartridge shell technology, specifically a sealed staple cartridge shell for an anastomosis device. Background Technology

[0002] A stapler is a widely used medical device in surgery, primarily used to replace manual suturing. It uses a mechanical device to fire specially designed staples, which penetrate and fix the tissues to be connected, achieving tissue anastomosis. The working principle of a stapler is similar to that of a stapler, enabling efficient and accurate tissue suturing. The staple cartridge is one of the core components of the stapler; it holds the staples and is responsible for pushing them out and inserting them into the tissue during surgery. The cartridge shell is the external protective structure of the cartridge. The upper surface of the cartridge shell is usually designed with slots corresponding to the positions of the staples. These slots allow the staples to pass through the inside of the cartridge during suturing.

[0003] For example, the authorized patent with publication number CN213030747U (staple cartridge assembly of a stapler) includes a housing, on which an anvil, a staple cartridge, and a cutting blade are mounted. A cutting groove is provided in the middle of the staple cartridge. The upper surface of the staple cartridge has a stepped structure that is symmetrically arranged on the left and right sides of the cutting groove, with the step structure being progressively lower from the inside to the outside. A staple groove group is correspondingly provided on the stepped structure. The staple groove group includes multiple staple grooves arranged at intervals. A suture staple is fitted in the staple groove. A pusher is provided at the lower end of the suture staple. A pusher block is also movably connected to the staple cartridge. The pusher block moves horizontally to drive the pusher block to move upward to lift the suture staple. The height of the upper end of the suture staple in the staple groove group decreases progressively from the outside to the inside along the stepped structure.

[0004] While the existing technologies can meet the requirement of the same tissue gradually thickening from the inside out and ensure suturing effect, they lack a sealing structure with a top groove. Consequently, during the use of the staple cartridge, contaminants such as tissue fluid and blood during surgery can easily enter the staple cartridge, contaminating the staples and affecting the subsequent suturing effect. Therefore, there is an urgent need in the market to develop a sealed staple cartridge shell to help people solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a sealed staple cartridge shell for a stapler, in order to solve the problem mentioned in the background art that during the use of the staple cartridge, contaminants such as tissue fluid and blood during the operation can easily enter the staple cartridge, contaminate the staples, and affect the subsequent suturing effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealed staple cartridge shell, comprising a staple cartridge shell body, wherein the staple cartridge shell body has staple grooves inside, and multiple staple grooves are provided. A protective cylinder is fixedly installed inside the staple grooves of the staple cartridge shell body. An inner ring groove is provided on the outer side of the lower part of the protective cylinder. An upper sealing block is provided inside the protective cylinder, and the outer side of the upper sealing block extends into the inner ring groove.

[0007] Preferably, an outer annular groove is provided on the lower outer side of the protective cylinder, and a sealing ring is provided inside the outer annular groove.

[0008] Preferably, a connecting cylinder is provided below the main body of the staple cartridge shell along the lower part of the protective cylinder, a sealing gasket is provided between the main body of the staple cartridge shell and the connecting cylinder, and a ring plate is fixedly installed on the upper part of the outer side of the connecting cylinder, and the main body of the staple cartridge shell and the ring plate are fixedly connected by screws.

[0009] Preferably, a lower sealing block is fixedly installed inside the ring plate, and the lower sealing block has a through-screw groove inside, the upper end of which extends into the interior of the upper sealing block.

[0010] Preferably, a sealing plate is fixedly installed below the connecting cylinder by screws, and the sealing plate has a slot inside.

[0011] Preferably, a knife-feeding groove is provided in the middle of the interior of the staple cartridge shell body, and a square tube is fixedly installed below the knife-feeding groove on the lower part of the staple cartridge shell body. A strip-shaped groove is symmetrically provided on both sides inside the square tube, and a sealing rubber is provided inside the square tube, with both ends of the sealing rubber extending into the interior of the strip-shaped groove.

[0012] Preferably, a second sealing plate is fixedly installed at the bottom of the square tube by screws, and the second sealing plate has a second slot inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model forms a sealed structure by fixing a protective cylinder in the nail slot and setting an upper sealing block inside the inner ring groove of the protective cylinder. During the use of the nail cartridge, it can block the contaminants such as tissue fluid and blood during the operation from entering the nail cartridge to a certain extent, thus avoiding contamination of the anastomotic nails, ensuring the subsequent suturing effect, improving the safety and reliability of the operation, and increasing its practicality.

[0015] (2) By setting a sealing ring, this utility model further enhances the sealing between the protective cylinder and the main body of the nail cartridge shell, effectively preventing external pollutants from entering the nail cartridge from the gap between the protective cylinder and the main body of the nail cartridge shell. By setting a sealing gasket, and the sealing gasket being located between the main body of the nail cartridge shell and the connecting cylinder, the sealing at the connection between the two is guaranteed. Together with the upper sealing block and the lower sealing block, a complete sealing structure from the top to the bottom of the nail cartridge is formed, effectively preventing pollutants from entering the nail cartridge.

[0016] (3) By setting a sealing rubber inside the square tube below the cutting groove, this utility model can prevent contaminants from entering the staple cartridge from the cutting groove during the operation, thereby increasing the sealing of the staple cartridge shell and improving its practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the staple cartridge shell of a sealed stapler according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the main body of the staple cartridge shell of this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of part A of this utility model;

[0020] Figure 4 This is an enlarged schematic diagram of part B of this utility model.

[0021] In the diagram: 1. Main body of the staple cartridge shell; 101. Staple groove; 102. Cutting groove; 2. Protective cylinder; 201. Inner ring groove; 202. Outer ring groove; 3. Connecting cylinder; 4. Upper sealing block; 5. Lower sealing block; 501. Staple passage groove; 6. Sealing plate one; 7. Sealing ring; 8. Ring plate; 9. Sealing gasket; 10. Square cylinder; 1001. Strip groove; 11. Sealing rubber; 12. Sealing plate two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4One embodiment of this utility model is a sealed staple cartridge shell, comprising a staple cartridge shell body 1, with staple grooves 101 inside the staple cartridge shell body 1, and multiple staple grooves 101. A protective cylinder 2 is fixedly installed inside the staple grooves 101 of the staple cartridge shell body 1. An inner ring groove 201 is provided on the outer side of the lower part of the protective cylinder 2. An upper sealing block 4 is provided inside the protective cylinder 2. The outer side of the upper sealing block 4 extends into the inner ring groove 201. A slit is provided in the middle of the upper sealing block 4 to facilitate the staples of the stapler to pass through the upper sealing block 4.

[0024] The tight fit between the upper sealing block 4 and the inner ring groove 201 effectively prevents contaminants such as tissue fluid and blood from entering the staple cartridge during the operation, ensuring the suturing effect, avoiding contamination of the staples by contaminants, and ensuring that the staples can accurately penetrate the tissue and form a stable anastomosis structure during the suturing process, thus increasing practicality.

[0025] Please see Figure 3 An outer ring groove 202 is provided on the lower outer side of the protective cylinder 2, and a sealing ring 7 is provided inside the outer ring groove 202.

[0026] The sealing ring 7 is set in the outer ring groove 202, which further enhances the sealing between the protective cylinder 2 and the staple cartridge shell body 1, effectively preventing external contaminants from entering the staple cartridge from the gap between the protective cylinder 2 and the staple cartridge shell body 1. Compared with relying solely on the protective cylinder 2 for sealing, the sealing effect is improved, and the sealing performance of the staple cartridge shell is increased.

[0027] Please see Figure 2 and Figure 3 A connecting cylinder 3 is provided below the main body 1 of the staple cartridge shell along the lower part of the protective cylinder 2. A sealing gasket 9 is provided between the main body 1 of the staple cartridge shell and the connecting cylinder 3. An annular plate 8 is fixedly installed on the upper part of the outer side of the connecting cylinder 3. The main body 1 of the staple cartridge shell and the annular plate 8 are fixedly connected by screws. A lower sealing block 5 is fixedly installed inside the annular plate 8. A staple groove 501 is provided inside the lower sealing block 5. The upper end of the staple groove 501 extends into the interior of the upper sealing block 4.

[0028] Regarding sealing continuity, the sealing gasket 9 is placed between the staple cartridge housing body 1 and the connecting cylinder 3, ensuring the sealing at the connection between the two. It works in conjunction with the upper sealing block 4 and the lower sealing block 5 to form a complete sealing structure from the top to the bottom of the staple cartridge, effectively preventing contaminants from entering the staple cartridge. At the same time, the lower sealing block 5 with a staple groove 501 is installed inside the ring plate 8, allowing the staples to pass smoothly through the lower sealing block 5 and enter the upper sealing block 4, ensuring the normal use of the staples.

[0029] Please see Figure 3A sealing plate 6 is fixedly installed below the connecting cylinder 3 by screws, and the sealing plate 6 has a slot inside.

[0030] The detachable nature of the sealing plate 6 facilitates the inspection and maintenance of the interior of the connecting cylinder 3, enabling timely detection and handling of potential problems, thus increasing its practicality.

[0031] Please see Figure 2 and Figure 4 The staple cartridge housing 1 has a cutting groove 102 in the middle of its interior. A square tube 10 is fixedly installed below the cutting groove 102 on the lower part of the staple cartridge housing 1. The square tube 10 has symmetrical strip grooves 1001 on both sides of its interior. The square tube 10 has a sealing rubber 11 inside its interior. Both ends of the sealing rubber 11 extend into the interior of the strip grooves 1001. A slit is provided in the middle of the sealing rubber 11 to facilitate the cutting blade of the stapler to pass through the upper sealing rubber block 4.

[0032] The cutting groove 102 provides a passageway for the stapler's cutting blade, ensuring its smooth passage during surgery. At the same time, the slit in the middle of the sealing rubber 11 facilitates the cutting blade's passage, preventing the sealing structure from affecting its normal operation. Furthermore, the two ends of the sealing rubber 11 extend into the strip groove 1001, making the sealing rubber 11 more firmly fixed within the square tube 10. This effectively prevents contaminants from entering the staple cartridge from the cutting groove 102 during surgery, forming a stable sealing structure together with the sealing structures of other parts of the staple cartridge.

[0033] Please see Figure 4 A sealing plate 2 12 is fixedly installed at the bottom of the square tube 10 by screws, and the sealing plate 2 12 has a slot 2 inside.

[0034] The detachable nature of the sealing plate 12 facilitates the inspection and maintenance of the interior of the square tube 10, enabling timely detection and handling of potential problems, thus increasing its practicality.

[0035] Working principle: During use, a protective cylinder 2 is fixedly installed in the nail groove 101 inside the main body 1 of the staple cartridge. The upper sealing block 4 inside the protective cylinder 2 fits tightly with the inner ring groove 201 to form the first sealing barrier, preventing contaminants such as tissue fluid and blood from entering the staple cartridge. An outer ring groove 202 is provided on the lower outer side of the protective cylinder 2, and the sealing ring 7 installed inside further enhances the sealing between the protective cylinder 2 and the main body 1 of the staple cartridge, forming the second sealing barrier. A connecting cylinder 3 is connected to the lower part of the main body 1 of the staple cartridge via a ring plate 8. A sealing gasket 9 is provided. The lower sealing block 5 and the upper sealing block 4 inside the ring plate 8 are connected through the nail groove 501 to form a complete sealing structure from top to bottom, which facilitates the smooth passage of the staples and maintains the sealing performance. In addition, sealing rubber 11 is provided in the knife groove 102 and the square tube 10 inside the staple cartridge shell 1. The sealing rubber 11 is fixed by the strip groove 1001. Its slit design facilitates the passage of the cutting knife and prevents contaminants from entering. Thus, the sealing performance of the staple cartridge shell of the stapler is improved through the integration of multi-layer sealing structure.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sealed staple cartridge housing for a stapler, comprising a staple cartridge housing body (1), characterized in that: The staple cartridge housing body (1) is provided with staple grooves (101) inside, and there are multiple staple grooves (101). A protective cylinder (2) is fixedly installed inside the staple grooves (101) of the staple cartridge housing body (1). An inner ring groove (201) is provided on the outer side of the lower part of the protective cylinder (2). An upper sealing block (4) is provided inside the protective cylinder (2). The outer side of the upper sealing block (4) extends into the interior of the inner ring groove (201).

2. The sealed staple cartridge housing of Claim 1, wherein: An outer ring groove (202) is provided on the lower outer side of the protective cylinder (2), and a sealing ring (7) is provided inside the outer ring groove (202).

3. The sealed staple cartridge housing of Claim 1, wherein: A connecting cylinder (3) is provided below the main body (1) of the staple cartridge shell along the lower part of the protective cylinder (2). A sealing gasket (9) is provided between the main body (1) of the staple cartridge shell and the connecting cylinder (3). A ring plate (8) is fixedly installed on the upper part of the outer side of the connecting cylinder (3). The main body (1) of the staple cartridge shell and the ring plate (8) are fixedly connected by screws.

4. The sealed staple cartridge housing of Claim 3, wherein: The lower sealing block (5) is fixedly installed inside the ring plate (8). The lower sealing block (5) has a nail groove (501) inside, and the upper end of the nail groove (501) extends into the interior of the upper sealing block (4).

5. The sealed staple cartridge housing of Claim 4, wherein: A sealing plate (6) is fixedly installed below the connecting cylinder (3) by screws, and the sealing plate (6) has a slot.

6. The sealed staple cartridge housing of Claim 1, wherein: A tool groove (102) is provided in the middle of the inside of the staple cartridge shell body (1). A square tube (10) is fixedly installed below the tool groove (102) on the lower part of the staple cartridge shell body (1). A strip groove (1001) is symmetrically provided on both sides of the inside of the square tube (10). A sealing rubber (11) is provided inside the square tube (10). Both ends of the sealing rubber (11) extend into the inside of the strip groove (1001).

7. The sealed staple cartridge housing of Claim 6, wherein: A sealing plate (12) is fixedly installed below the square tube (10) by screws, and the sealing plate (12) has a slot (2) inside.

Images