Nail bin assembly convenient to replace for cutting anastomat

Abstract

The utility model belongs to the technical field of cutting anastomats, and particularly relates to a convenient-to-replace nail bin assembly of a cutting anastomat, which comprises an anastomat body, a nail bin body is inserted and mounted at the front end of the anastomat body, and a cover plate is arranged at the top of the nail bin body; the fixing assembly is located on the anastomat body and used for fixing the position of the cover plate; the two first limiting strips are both fixedly installed on the circumferential side wall of the nail bin body and both matched with the anastomat body in an inserted connection mode, a limiting groove is formed in the nail bin body, a first sliding plate is slidably installed in the limiting groove, two first springs are fixedly installed at the top of the first sliding plate, a first sliding groove is formed in the first sliding plate, and a second sliding groove is formed in the second sliding plate. A sliding strip is installed in the first sliding groove in a sliding mode, and one end of the sliding strip penetrates through the first sliding groove and extends to the outside. When the whole device is used, the nail bin body is convenient to detach, and the nail bin body can be repeatedly used and cannot be damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting staplers, and particularly relates to a replaceable staple cartridge assembly for a cutting stapler. Background Technique

[0002] A cutting stapler is a device commonly used in surgical operations, especially large-scale operations. Its principle is similar to that of a stapler, and it can directly cut and suture tissues such as the stomach and intestines together to form a connected anastomosis.

[0003] Most staple cartridge assemblies of cutting staplers have some disadvantages when in use. For example, the staple cartridge of the cutting stapler is disassembled and installed using plastic buckles. However, due to the aging, wear, or mechanical stress of the material, loosening may occur. Once the plastic buckle loosens, it will directly affect the fixing effect of the staple cartridge, making it unable to be firmly fixed on the stapler, and may further lead to instability and safety hazards during the surgical process. In view of this, we propose a replaceable staple cartridge assembly for a cutting stapler. Content of the Utility Model

[0004] The purpose of the utility model is to provide a replaceable staple cartridge assembly for a cutting stapler to solve the problems raised in the above background technique.

[0005] In view of this, the utility model provides a replaceable staple cartridge assembly for a cutting stapler, including:

[0006] A stapler body, a staple cartridge body is inserted and installed at the front end of the stapler body, and a cover plate is arranged on the top of the staple cartridge body;

[0007] A fixing component, which is located on the stapler body and is used to fix the position of the cover plate;

[0008] Two first limiting strips, both of the two first limiting strips are fixedly installed on the circumferential side wall of the staple cartridge body, both of the two first limiting strips are inserted and matched with the stapler body, a limiting groove is opened in the staple cartridge body, a first sliding plate is slidably installed in the limiting groove, two first springs are fixedly installed on the top of the first sliding plate, and a first sliding groove is opened in the first sliding plate, a sliding strip is slidably installed in the first sliding groove, and one end of the sliding strip penetrates through the first sliding groove and extends to the outside, the other end of the sliding strip is fixedly installed with two second springs fixed to the inner wall of the first sliding groove, a limiting block is fixedly installed at the bottom of the first sliding plate, the lower end of the limiting block penetrates through the first sliding plate and extends into the stapler body, the lower end of the limiting block is inserted and matched with the stapler body, and a second sliding plate is slidably installed on one side of the staple cartridge body;

[0009] The limiting component is located on the staple cartridge body and is used to limit the position of the second sliding plate.

[0010] In this technical solution, when the staple cartridge body needs to be installed on the stapler body, first insert the staple cartridge body into one end of the stapler body. Then, the two first limiting strips will be inserted into the stapler body. At the same time, the stapler body squeezes the limiting block to slide in the direction of the first spring. The limiting block drives the first sliding plate and the sliding strip to slide upward. At the same time, the two first springs are squeezed and contracted. When the staple cartridge body slides to a suitable position, the stapler body no longer squeezes the limiting block. Under the action of the rebounding force of the two first springs, the two first springs push the first sliding plate, the sliding strip and the limiting block to slide downward. When the limiting block is inserted into the stapler body, the position of the staple cartridge body is fixed. Subsequently, the operator pulls the cover plate upward with force. Through the set fixing component, the cover plate can be taken out, which is convenient for installing the staple cartridge body.

[0011] When the staple cartridge body needs to be disassembled, through the set limiting component, then under the action of the rebounding force of the two second springs, the sliding strip will slide in the direction away from the second spring. At this time, the operator can pull the sliding strip upward with hand. The sliding strip drives the first sliding plate and the limiting block to slide upward. At the same time, the two first springs are squeezed and contracted. When the lower end of the limiting block disengages from the stapler body, the staple cartridge body can be pulled out outward, and at the same time, the two first limiting strips will also be pulled out of the stapler body, achieving the effect of convenient disassembly of the staple cartridge body, and the staple cartridge body can be reused.

[0012] In the above technical solution, further, the fixing component includes:

[0013] Two grooves are respectively opened on both sides of the cover plate. Two second limiting strips are respectively clamped and installed in the two grooves. The two second limiting strips are both fixedly connected to the stapler body.

[0014] In this technical solution, the operator pulls the cover plate upward with force. At the same time, the inner wall of the groove squeezes the corresponding second limiting strip to deform slightly. Then, the second limiting strip disengages from the corresponding groove. Then, the cover plate can be taken out, which is convenient for installing the staple cartridge body.

[0015] In the above technical solution, further, the limiting component includes:

[0016] A plurality of second sliding grooves are opened in the second sliding plate. A convex block is slidably installed in the second sliding groove. One end of the convex block penetrates through the second sliding groove and extends to the outside. The other end of the convex block is fixedly installed with a fourth spring fixed to the inner wall of the second sliding groove. A plurality of limiting holes are opened on the side of the staple cartridge body close to the second sliding plate. One end of the convex block is inserted and matched with the limiting hole.

[0017] In this technical solution, when it is necessary to remove the staple cartridge body, first push the second sliding plate upward. Subsequently, several bumps are respectively squeezed by several limiting holes and slide in the direction of the fourth spring. When the second sliding plate slides to a suitable position, under the action of the elastic force of several fourth springs, several bumps slide in the direction of the limiting holes, and several bumps respectively enter the corresponding limiting holes, so as to fix the position of the second sliding plate. At this time, the sliding bar is no longer squeezed. Under the action of the elastic force of the two second springs, the sliding bar will slide in the direction away from the second spring. At this time, the operator can pull the sliding bar upward by hand. The sliding bar drives the first sliding plate and the limiting block to slide upward. At the same time, the two first springs are squeezed and contracted. When the lower end of the limiting block disengages from the stapler body, the staple cartridge body can be pulled out outward, and at the same time, the two first limiting bars will also be pulled out from the stapler body, achieving the effect of facilitating the removal of the staple cartridge body.

[0018] In the above technical solution, further, a rubber pad is fixedly installed on one side of the second sliding plate.

[0019] In this technical solution, the rubber pad facilitates the operator to push the second sliding plate upward.

[0020] In the above technical solution, further, the cross-section of the first limiting bar is trapezoidal.

[0021] In this technical solution, it is ensured that after the first limiting bar is inserted into the stapler body, it will not disengage upward from the stapler body.

[0022] In the above technical solution, further, one end of the bump is of a semi-circular structure.

[0023] In this technical solution, it is ensured that several bumps can be respectively squeezed by several limiting holes and slide in the direction of the fourth spring.

[0024] The beneficial effects of the present utility model are:

[0025] For the replaceable staple cartridge assembly of the cutting stapler, when it is necessary to remove the staple cartridge body, through the arranged limiting component, then under the action of the elastic force of the two second springs, the sliding bar will slide in the direction away from the second spring. At this time, the operator can pull the sliding bar upward by hand. The sliding bar drives the first sliding plate and the limiting block to slide upward. At the same time, the two first springs are squeezed and contracted. When the lower end of the limiting block disengages from the stapler body, the staple cartridge body can be pulled out outward, and at the same time, the two first limiting bars will also be pulled out from the stapler body, achieving the effect of facilitating the removal of the staple cartridge body, and the staple cartridge body can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the cartridge body area of the present utility model;

[0028] Figure 3 It is a schematic structural diagram of the cover plate area of the present utility model;

[0029] Figure 4 It is of the present utility model Figure 3 Schematic enlarged structural diagram at position A;

[0030] Figure 5 It is a schematic structural diagram of the first limiting strip area of the present utility model;

[0031] Figure 6 It is a schematic cross-sectional structural diagram of the second sliding plate of the present utility model;

[0032] Figure 7 It is a schematic cross-sectional structural diagram of the cartridge body of the present utility model;

[0033] Figure 8 It is a schematic cross-sectional structural diagram of the first sliding plate of the present utility model.

[0034] The markings in the figure are indicated as:

[0035] 1. Stapler body; 2. Cartridge body; 3. First limiting strip; 4. Cover plate; 5. Limiting groove; 6. First sliding plate; 7. First spring; 8. First sliding groove; 9. Second spring; 10. Sliding strip; 11. Limiting block; 12. Second sliding plate; 13. Second sliding groove; 14. Protrusion; 15. Fourth spring; 16. Second limiting strip; 17. Groove; 18. Rubber pad; 19. Limiting hole. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0037] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the sake of convenience in description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0038] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0039] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0040] It should be noted that in this application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0041] Embodiment 1:

[0042] Please refer to Figure 1 - Figure 8 as shown, this embodiment provides a replaceable staple cartridge assembly for a cutting stapler, including:

[0043] A stapler body 1, with a staple cartridge body 2 inserted and installed at the front end of the stapler body 1, and a cover plate 4 provided at the top of the staple cartridge body 2;

[0044] A fixing component, which is located on the stapler body 1 and is used to fix the position of the cover plate 4;

[0045] Two first limiting strips 3, both of which are fixedly installed on the circumferential side wall of the staple cartridge body 2, and both of the two first limiting strips 3 are inserted and cooperated with the stapler body 1. A limiting groove 5 is opened in the staple cartridge body 2, and a first sliding plate 6 is slidably installed in the limiting groove 5. Two first springs 7 are fixedly installed at the top of the first sliding plate 6, and a first sliding groove 8 is opened in the first sliding plate 6. A sliding strip 10 is slidably installed in the first sliding groove 8, and one end of the sliding strip 10 penetrates through the first sliding groove 8 and extends to the outside, and the other end of the sliding strip 10 is fixedly installed with two second springs 9 fixed to the inner wall of the first sliding groove 8. A limiting block 11 is fixedly installed at the bottom of the first sliding plate 6, and the lower end of the limiting block 11 penetrates through the first sliding plate 6 and extends into the stapler body 1, and the lower end of the limiting block 11 is inserted and cooperated with the stapler body 1. A second sliding plate 12 is slidably installed on one side of the staple cartridge body 2;

[0046] A limiting component, which is located on the staple cartridge body 2 and is used to limit the position of the second sliding plate 12.

[0047] Among them, when the staple cartridge body 2 needs to be installed on the stapler body 1, first insert the staple cartridge body 2 into one end of the stapler body 1. Then, the two limiting strips 3 will be inserted into the stapler body 1. At the same time, the stapler body 1 squeezes the limiting block 11 to slide in the direction of the first spring 7. The limiting block 11 drives the first sliding plate 6 and the sliding strip 10 to slide upward. At the same time, the two first springs 7 are squeezed and contracted. When the staple cartridge body 2 slides to a suitable position, the stapler body 1 no longer squeezes the limiting block 11. Under the action of the rebounding force of the two first springs 7, the two first springs 7 push the first sliding plate 6, the sliding strip 10 and the limiting block 11 to slide downward. When the limiting block 11 is inserted into the stapler body 1, the position of the staple cartridge body 2 is fixed. Subsequently, the operator pulls the cover plate 4 upward with force. Through the set fixing component, the cover plate 4 can be taken out, which is convenient for installing the staple cartridge body 2;

[0048] When the staple cartridge body 2 needs to be disassembled, through the set limiting component, subsequently, under the action of the rebounding force of the two second springs 9, the sliding strip 10 will slide in the direction away from the second springs 9. At this time, the operator can pull the sliding strip 10 upward by hand. The sliding strip 10 drives the first sliding plate 6 and the limiting block 11 to slide upward. At the same time, the two first springs 7 are squeezed and contracted. When the lower end of the limiting block 11 disengages from the stapler body 1, the staple cartridge body 2 can be pulled out outward. At the same time, the two limiting strips 3 will also be pulled out of the stapler body 1, achieving the effect of convenient disassembly of the staple cartridge body 2, and the staple cartridge body 2 can be reused.

[0049] In this embodiment, the fixing component includes:

[0050] Two grooves 17 are respectively opened on both sides of the cover plate 4. Two limiting strips 16 are respectively clamped and installed in the two grooves 17. Both limiting strips 16 are fixedly connected to the stapler body 1;

[0051] Among them, the operator pulls the cover plate 4 upward with force. At the same time, the inner wall of the groove 17 squeezes the corresponding limiting strip 16 to undergo slight deformation. Subsequently, the limiting strip 16 disengages from the corresponding groove 17. Then, the cover plate 4 can be taken out, which is convenient for installing the staple cartridge body 2.

[0052] In this embodiment, the limiting component includes:

[0053] A plurality of second sliding grooves 13 are opened in the second sliding plate 12. A convex block 14 is slidably installed in the second sliding groove 13. One end of the convex block 14 penetrates through the second sliding groove 13 and extends to the outside. The other end of the convex block 14 is fixedly installed with a fourth spring 15 fixed to the inner wall of the second sliding groove 13. A plurality of limiting holes 19 are opened on one side of the staple cartridge body 2 close to the second sliding plate 12. One end of the convex block 14 is inserted and matched with the limiting hole 19;

[0054] Among them, when the staple cartridge body 2 needs to be disassembled, first push the second sliding plate 12 upward. Subsequently, several bumps 14 are respectively squeezed by several limiting holes 19 and slide in the direction of the fourth spring 15. When the second sliding plate 12 slides to a proper position, under the action of the elastic force of several fourth springs 15 rebounding, several bumps 14 slide in the direction of the limiting holes 19, and several bumps 14 respectively enter the corresponding limiting holes 19, so as to fix the position of the second sliding plate 12. At this time, the sliding bar 10 is no longer squeezed, and under the action of the elastic force of the two second springs 9 rebounding, the sliding bar 10 will slide in the direction away from the second springs 9. At this time, the operator can pull the sliding bar 10 upward by hand. The sliding bar 10 drives the first sliding plate 6 and the limiting block 11 to slide upward. At the same time, the two first springs 7 are squeezed and contracted. When the lower end of the limiting block 11 disengages from the stapler body 1, the staple cartridge body 2 can be pulled out outward. At the same time, the two first limiting strips 3 will also be pulled out from the stapler body 1, achieving the effect of facilitating the disassembly of the staple cartridge body 2.

[0055] Embodiment 2:

[0056] This embodiment provides a replaceable staple cartridge assembly for a cutting stapler. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0057] In this embodiment, a rubber pad 18 is fixedly installed on one side of the second sliding plate 12.

[0058] Among them, the rubber pad 18 provided facilitates the operator to push the second sliding plate 12 upward.

[0059] Embodiment 3:

[0060] This embodiment provides a replaceable staple cartridge assembly for a cutting stapler. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0061] In this embodiment, the cross-section of the first limiting strip 3 is trapezoidal.

[0062] Among them, it is ensured that after the first limiting strip 3 is inserted into the stapler body 1, it will not disengage upward from the stapler body 1.

[0063] Embodiment 4:

[0064] This embodiment provides a replaceable staple cartridge assembly for a cutting stapler. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0065] In this embodiment, one end of the bump 14 is of a semi-circular structure.

[0066] Among them, it is ensured that several bumps 14 can be respectively squeezed by several limiting holes 19 and slide in the direction of the fourth spring 15.

[0067] It should be noted that the second limiting strip 16 has a certain toughness to ensure that the second limiting strip 16 can undergo slight deformation.

[0068] Working principle: When the staple cartridge body 2 needs to be installed on the stapler body 1, first insert the staple cartridge body 2 into one end of the stapler body 1. Then, the two first limiting strips 3 will be inserted into the stapler body 1. At the same time, the stapler body 1 squeezes the limiting block 11 to slide in the direction of the first spring 7. The limiting block 11 drives the first sliding plate 6 and the sliding strip 10 to slide upward. At the same time, the two first springs 7 are compressed and contracted. When the staple cartridge body 2 slides to a proper position, the stapler body 1 no longer squeezes the limiting block 11. Under the action of the rebounding force of the two first springs 7, the two first springs 7 push the first sliding plate 6, the sliding strip 10 and the limiting block 11 to slide downward. When the limiting block 11 is inserted into the stapler body 1, the position of the staple cartridge body 2 is fixed. Then, the operator pulls the cover plate 4 upward forcefully. At the same time, the inner wall of the groove 17 squeezes the corresponding second limiting strip 16 to undergo slight deformation. Then, the second limiting strip 16 disengages from the corresponding groove 17. Then, the cover plate 4 can be taken out, which is convenient for installing the staple cartridge body 2.

[0069] When the staple cartridge body 2 needs to be disassembled, first push the rubber pad 18 upward. The rubber pad 18 drives the second sliding plate 12 to slide upward. Then, several convex blocks 14 are respectively squeezed by several limiting holes 19 to slide in the direction of the fourth spring 15. When the second sliding plate 12 slides to a proper position, under the action of the rebounding force of several fourth springs 15, several convex blocks 14 all slide in the direction of the limiting holes 19. Several convex blocks 14 respectively enter the corresponding limiting holes 19 to fix the position of the second sliding plate 12. At this time, the sliding strip 10 is no longer squeezed. Under the action of the rebounding force of the two second springs 9, the sliding strip 10 will slide in the direction away from the second springs 9. At this time, the operator can pull the sliding strip 10 upward by hand. The sliding strip 10 drives the first sliding plate 6 and the limiting block 11 to slide upward. At the same time, the two first springs 7 are compressed and contracted. When the lower end of the limiting block 11 disengages from the stapler body 1, the staple cartridge body 2 can be pulled out outward. At the same time, the two first limiting strips 3 will also be pulled out from the stapler body 1, achieving the effect of facilitating the disassembly of the staple cartridge body 2.

[0070] The embodiments of the present application are described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, all of which fall within the protection scope of the present application.

Claims

1. A replaceable staple cartridge assembly for a cutting stapler, characterized in that, Comprising: A stapler body (1), a staple cartridge body (2) is inserted and installed at the front end of the stapler body (1), and a cover plate (4) is arranged on the top of the staple cartridge body (2); A fixing component, which is located on the stapler body (1) and is used to fix the position of the cover plate (4); Two first limiting strips (3), both of the two first limiting strips (3) are fixedly installed on the circumferential side wall of the staple cartridge body (2), both of the two first limiting strips (3) are in plug-in fit with the stapler body (1), a limiting groove (5) is opened in the staple cartridge body (2), a first sliding plate (6) is slidably installed in the limiting groove (5), two first springs (7) are fixedly installed on the top of the first sliding plate (6), and a first sliding groove (8) is opened in the first sliding plate (6), a sliding strip (10) is slidably installed in the first sliding groove (8), and one end of the sliding strip (10) penetrates through the first sliding groove (8) and extends to the outside, the other end of the sliding strip (10) is fixedly installed with two second springs (9) fixed to the inner wall of the first sliding groove (8), a limiting block (11) is fixedly installed at the bottom of the first sliding plate (6), the lower end of the limiting block (11) penetrates through the first sliding plate (6) and extends into the stapler body (1), and the lower end of the limiting block (11) is in plug-in fit with the stapler body (1), and a second sliding plate (12) is slidably installed on one side of the staple cartridge body (2); A limiting component, which is located on the staple cartridge body (2) and is used to limit the position of the second sliding plate (12).

2. The replaceable staple cartridge assembly of a cutting stapler according to claim 1, characterized in that, The fixing component includes: Two grooves (17), the two grooves (17) are respectively opened on both sides of the cover plate (4), two second limiting strips (16) are respectively clamped and installed in the two grooves (17), and both of the two second limiting strips (16) are fixedly connected with the stapler body (1).

3. The replaceable staple cartridge assembly of a cutting stapler according to claim 2, characterized in that, The limiting component includes: A plurality of second sliding grooves (13), the plurality of second sliding grooves (13) are all opened in the second sliding plate (12), a convex block (14) is slidably installed in the second sliding groove (13), one end of the convex block (14) penetrates through the second sliding groove (13) and extends to the outside, the other end of the convex block (14) is fixedly installed with a fourth spring (15) fixed to the inner wall of the second sliding groove (13), a plurality of limiting holes (19) are opened on one side of the staple cartridge body (2) close to the second sliding plate (12), and one end of the convex block (14) is in plug-in fit with the limiting hole (19).

4. The replaceable staple cartridge assembly of a cutting stapler according to claim 1, wherein, A rubber pad (18) is fixedly installed on one side of the second sliding plate (12).

5. The easy-to-replace staple cartridge assembly of a cutting stapler according to claim 1, wherein, The cross section of the first limiting strip (3) is trapezoidal.

6. The replaceable staple cartridge assembly of a cutting stapler according to claim 3, characterized in that, One end of the convex block (14) is of a semi-circular structure.

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