Anti-skid nail bin assembly of disposable endoscope cutting anastomat

Abstract

The utility model discloses an anti-skidding nail bin assembly of a disposable endoscope cutting anastomat, which relates to the technical field of medical instruments and comprises a nail bin main body, a plurality of nail grooves are arranged at the top of the nail bin main body, anastomosis nails are placed in the nail grooves, two sides of the interior of each nail groove are respectively provided with a groove, a spring piece is arranged in each groove, and the spring piece is connected with the nail bin main body. A rubber pad is installed on the side, close to the anastomosis nail, of the spring piece, and the outer side of the rubber pad makes contact with the outer wall of the anastomosis nail. The two grooves are formed in the inner wall of the nail groove and used for installing the spring pieces, the friction force between the grooves and the anastomosis nails is increased through cooperation with the rubber pad, and therefore when the nail bin cover is opened, the anastomosis nails are stably clamped and positioned in the nail groove by the two spring pieces and cannot be separated out; however, when the pushing piece pushes the anastomosis nail, the anastomosis nail can be normally pushed out as long as the pushing force is larger than the clamping force of the spring piece on the anastomosis nail, normal use is not affected, the problem that the anastomosis nail falls off accidentally is avoided, and use is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a non-slip staple cartridge assembly for a disposable laparoscopic cutting stapler. Background Technique

[0002] The applicable scope of laparoscopic cutting staplers and disposable staple cartridges: Laparoscopic cutting staplers and disposable staple cartridges are applicable to the resection, transection and anastomosis of tissues in abdominal, gynecological, pediatric and thoracic surgeries. They can also be used for the resection and transection of liver parenchyma, liver blood vessels and bile duct ducts;

[0003] When using a cutting stapler, it needs to be used with a staple cartridge. In the prior art, the staple cartridge mainly consists of components such as a staple cartridge seat, a staple cartridge cover, and anastomosis staples placed in the staple grooves of the staple cartridge seat. Before use, the staple cartridge cover is covered on the staple cartridge seat to cover the anastomosis staples in the staple grooves. When in use, the staple cartridge cover needs to be removed. At this time, the tip of the anastomosis staple is very likely to pierce the staple cartridge cover and move with the staple cartridge cover and fall off, making it very inconvenient to use;

[0004] To solve the above problems, this application proposes a non-slip staple cartridge assembly for a disposable laparoscopic cutting stapler. Content of the Utility Model

[0005] The utility model provides a non-slip staple cartridge assembly for a disposable laparoscopic cutting stapler to solve the above technical problems.

[0006] To solve the above technical problems, a non-slip staple cartridge assembly for a disposable laparoscopic cutting stapler provided by the utility model includes a staple cartridge body. A plurality of staple grooves are opened at the top of the staple cartridge body. Anastomosis staples are placed inside the staple grooves. A groove is provided on each of the two sides inside the staple grooves. A spring piece is installed inside the groove. A rubber pad is installed on the side of the spring piece close to the anastomosis staple. The outer side of the rubber pad is in contact with the outer wall of the anastomosis staple. A plurality of rubber blocks are fixedly connected to the inner side of the rubber pad. A plurality of insertion holes are opened on the spring piece. The rubber blocks penetrate through the insertion holes.

[0007] Preferably, a slot is provided on the inner wall of the groove. The spring piece is located inside the groove and extends into the slot.

[0008] Preferably, the spring piece consists of a spring piece main body and an insertion piece. The insertion piece is integrally formed and connected to the bottom of the spring piece main body. The insertion piece is located inside the groove and extends into the slot. And the insertion piece is in interference fit with the inside of the slot. The spring piece main body is located inside the groove. The insertion holes are opened on the spring piece main body.

[0009] Preferably, the rubber block is composed of an inserting block and a limiting block. The limiting block is integrally formed and connected to the end of the inserting block. The limiting block penetrates through the jack, and the limiting block is in interference fit with the inner part of the jack. The limiting block is located on the side of the spring piece body away from the rubber pad.

[0010] Preferably, a staple cartridge cover is sleeved on the top of the staple cartridge body. A pushing piece is installed inside the staple groove. The pushing piece is located at the bottom of the anastomosis staple, and the pushing piece extends below the staple cartridge body.

[0011] Compared with the related art, a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler provided by the present utility model has the following beneficial effects:

[0012] By providing two grooves on the inner wall of the staple groove for installing spring pieces, two spring pieces distributed left and right clamp the anastomosis staple in the middle, and then cooperate with the rubber pad to increase the friction with the anastomosis staple, so that when the staple cartridge cover is opened, the anastomosis staple is firmly clamped and positioned in the staple groove by the two spring pieces and will not fall off. However, when the pushing piece pushes the anastomosis staple, as long as the pushing force is greater than the clamping force of the spring piece on the anastomosis staple, the anastomosis staple can be normally pushed out, which does not affect the normal use and also avoids the problem of accidental detachment of the anastomosis staple, making it very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an overall structural schematic diagram of a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler proposed by the present utility model;

[0014] Figure 2 is a structural schematic diagram of the staple cartridge body of a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler proposed by the present utility model;

[0015] Figure 3 is a front view of the inside of the staple groove of a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler proposed by the present utility model;

[0016] Figure 4 is a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler proposed by the present utility model Figure 3 enlarged view of part A;

[0017] Figure 5 is a partial cross-sectional structural schematic diagram of the staple cartridge body of a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler proposed by the present utility model;

[0018] Figure 6 is a structural schematic diagram of the elastic metal sheet of a non-slip staple cartridge assembly of a disposable endoscopic cutting stapler proposed by the present utility model

[0019] Figure 7Schematic diagram of the rubber pad structure of the anti-slip staple cartridge assembly of a disposable laparoscopic cutting stapler proposed by the present utility model.

[0020] Reference numerals in the figure: 1, staple cartridge body; 2, staple cartridge cover; 3, staple groove; 4, pusher; 5, staple; 6, groove; 7, slot; 8, spring piece, 81, spring piece body, 82, insertion piece; 9, rubber pad; 10, rubber block, 101, insertion block, 102, limiting block; 11, jack. Specific implementation mode

[0021] The embodiment is given by Figure 1-7 The present utility model includes a staple cartridge body 1. A plurality of staple grooves 3 are formed at the top of the staple cartridge body 1. Staples 5 are placed inside the staple grooves 3. A staple cartridge cover 2 is sleeved on the top of the staple cartridge body 1. A pusher 4 is installed inside the staple groove 3. The pusher 4 is located at the bottom of the staple 5 and extends below the staple cartridge body 1. One groove 6 is respectively arranged on both sides inside the staple groove 3. A spring piece 8 is installed inside the groove 6. A rubber pad 9 is installed on the side of the spring piece 8 close to the staple 5. The outer side of the rubber pad 9 is in contact with the outer wall of the staple 5. A plurality of rubber blocks 10 are fixedly connected to the inner side of the rubber pad 9. A plurality of jacks 11 are formed on the spring piece 8. The rubber blocks 10 penetrate through the jacks 11. The two spring pieces 8 clamp and position the staple 5 in the staple groove 3, and the rubber pad 9 can increase the friction force with the surface of the staple 5, improve the stability of the staple 5, and at the same time avoid damaging the outer surface of the staple 5.

[0022] A slot 7 is arranged on the inner wall of the groove 6. The spring piece 8 is located inside the groove 6 and extends into the slot 7. The spring piece 8 is inserted on the slot 7 in the groove 6, which is convenient for the assembly work of the spring piece 8.

[0023] The spring piece 8 is composed of a spring piece body 81 and an insertion piece 82. The insertion piece 82 is integrally formed and connected to the bottom of the spring piece body 81. The insertion piece 82 is located inside the groove 6 and extends into the slot 7, and the insertion piece 82 is in interference fit with the inside of the slot 7. The spring piece body 81 is located inside the groove 6. The jack 11 is formed on the spring piece body 81. The spring piece body 81 is arc-shaped and inclined inside the groove 6. If there is no obstruction, the elastic force of the spring piece body 81 can make it tilt into the staple groove 3. Therefore, the elastic force of the spring piece body 81 can clamp the staple 5 in the staple groove 3.

[0024] The rubber block 10 is composed of an insertion block 101 and a limit block 102. The limit block 102 is integrally formed and connected to the end of the insertion block 101. The limit block 102 penetrates through the insertion hole 11, and the limit block 102 is in interference fit with the inside of the insertion hole 11. The limit block 102 is located on the side of the spring piece body 81 away from the rubber pad 9. The rubber pad 9 is fixedly inserted on the spring piece 8 through interference fit of the rubber block 10. Since the limit block 102 in the rubber block 10 is slightly larger than the insertion hole 11, the rubber block 10 will not easily break away from the insertion hole 11, improving the stability of the rubber pad 9. When inserting the rubber block 10 into the insertion hole 11, only need to forcefully squeeze and deform the limit block 102. After the limit block 102 passes through the insertion hole 11, it can automatically recover its deformation.

[0025] Working principle:

[0026] When the staple 5 is placed inside the staple groove 3 and not in use, during this period, the spring piece 8 is inserted on the inner wall of the groove 6 and close to the staple 5. The staple 5 is always in a state of squeezing the spring piece 8 to the side, causing the spring piece 8 to generate elastic force and retract into the groove 6. The rubber pad 9 on the spring piece 8 is attached to the staple 5. The two spring pieces 8 sandwich the staple 5 in the middle, and the friction force of the contact surface with the staple 5 is increased through the rubber pad 9. When the staple cartridge cover 2 is lifted, the staple 5 will not randomly break away from the staple groove 3. Even if the tip of the staple 5 pierces the staple cartridge cover 2, affected by the clamping of the spring piece 8 and the large friction force of the rubber pad 9, the staple cartridge cover 2 and the staple 5 will separate, leaving the staple 5 inside the staple groove 3. Only when using, the pusher 4 pushes the staple 5 upward, and the force of the pusher 4 pushing the staple 5 must be greater than the clamping force of the spring piece 8 and the rubber pad 9 on the staple 5 to smoothly push out the staple 5 for use.

Claims

1. An anti-slip stapler assembly for a disposable laparoscopic cutting stapler, comprising a stapler body (1), a plurality of staple grooves (3) being formed on the top of the stapler body (1), staples (5) being placed inside the staple grooves (3), and characterized in that: A groove (6) is provided on both sides of the nail groove (3), a spring sheet (8) is installed inside the groove (6), a rubber pad (9) is installed on the side of the spring sheet (8) close to the anastomotic staple (5), the outer side of the rubber pad (9) is in contact with the outer wall of the anastomotic staple (5), a plurality of rubber blocks (10) are fixedly connected to the inner side of the rubber pad (9), a plurality of insertion holes (11) are opened on the spring sheet (8), and the rubber blocks (10) pass through the insertion holes (11).

2. The anti-slip nail cartridge assembly of a disposable laparoscopic cutting stapler according to claim 1, characterized in that: A slot (7) is provided on the inner wall of the groove (6), and the spring sheet (8) is located inside the groove (6) and extends into the slot (7).

3. The anti-slip nail cartridge assembly of a disposable laparoscopic cutting stapler according to claim 2, characterized in that: The spring sheet (8) is composed of a spring sheet body (81) and an insert sheet (82); the insert sheet (82) is integrally formed and connected to the bottom of the spring sheet body (81); the insert sheet (82) is located inside the groove (6) and extends into the slot (7); the insert sheet (82) is interference fit with the inside of the slot (7); the spring sheet body (81) is located inside the groove (6), and the insertion hole (11) is provided on the spring sheet body (81).

4. The anti-slip nail cartridge assembly of a disposable laparoscopic cutting stapler according to claim 3, characterized in that: The rubber block (10) is composed of an insert block (101) and a limit block (102); the limit block (102) is integrally formed and connected to the end of the insert block (101); the limit block (102) passes through the insert hole (11); and the limit block (102) is interference fit inside the insert hole (11); the limit block (102) is located on a side of the spring sheet body (81) away from the rubber pad (9).

5. The anti-slip nail cartridge assembly of a disposable laparoscopic cutting stapler according to claim 1, characterized in that: A staple cartridge cover (2) is sleeved on the top of the staple cartridge body (1), a push piece (4) is installed inside the staple groove (3), the push piece (4) is located at the bottom of the staples (5), and the push piece (4) extends to the bottom of the staple cartridge body (1).

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