A steel band for an anastomat and an anastomat

Abstract

The present application relates to the technical field of anastomat, and particularly discloses a steel band for anastomat and an anastomat. The steel band for anastomat comprises a steel band body, at least one first hole is arranged on the steel band body, and a reinforcing member capable of preventing the steel band body from being deformed in the firing direction of the anastomat is arranged on the steel band body or in the first hole. The steel band for anastomat provided by the present application is provided with the first hole on the steel band body, so as to increase the elasticity of the steel band and meet the flexibility requirement of the swing head, the reinforcing member is arranged on the steel band body or in the first hole, the rigidity of the steel band is improved under the premise of meeting the flexibility requirement of the swing head, the rigidity requirement of the nail pushing mechanism is met, the steel band is prevented from being deformed in the firing direction of the anastomat, the firing mechanism is ensured to be fired in place, and the normal operation of the surgery is ensured. The anastomat provided by the present application comprises the steel band for anastomat.

Description

Technical Field

[0001] This invention relates to the field of anastomosis device technology, and more particularly to a steel strip for anastomosis device and anastomosis device. Background Technology

[0002] Medical staplers are medical instruments frequently used in surgical procedures on the physiological tissues of the digestive tract. In general surgery, staplers are often used to cut and close tissues. The working principle of a stapler involves placing the tissue between the staple cartridge and the anvil. By adjusting the distance between the cartridge and the anvil, the tissue is compressed appropriately. When the distance between the cartridge and the anvil reaches a safe range for suturing, the stapler is fired, compressing the U-shaped staples into a B-shape to suture the tissue. Small blood vessels can pass through the B-shaped staples to ensure blood supply to the anastomosis and distal tissues. Then, a cutting blade cuts the tissue. Normally, the stapler is fired by a firing mechanism that pushes the pusher block and the cutter. The firing mechanism includes a firing rod. In order to adapt to the swing of the stapler head and the drive of the pusher block, the firing rod is made of multiple layers of thin steel sheets. It must meet both a certain degree of flexibility and a certain degree of rigidity. Therefore, during the firing process, the cutting force of the cutter and the resistance of the pusher block are different when encountering tissues of different thicknesses. This results in different deformations of the firing rod, which in turn causes the firing mechanism to fail to fire properly, affecting the normal progress of the operation. Summary of the Invention

[0003] The purpose of this invention is to provide a steel band for a stapler and a stapler that solves the problem of incomplete firing of the firing mechanism.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A steel strip for a stapler includes a steel strip body, the steel strip body having at least one first hole, and a reinforcing member provided on the steel strip body or in the first hole to prevent the steel strip body from deforming in the firing direction of the stapler.

[0006] Preferably, the steel strip body has a first hole, the first hole extends along the length direction of the steel strip body, and the reinforcing member is disposed in the first hole.

[0007] Preferably, the reinforcing member includes a plurality of elastic support rods, the two ends of which are connected to the wall of the first hole, and the plurality of support rods are arranged in a cross pattern to form a mesh structure.

[0008] Preferably, the reinforcing member includes a plurality of supporting members, the supporting members being connected to the wall of the first hole, and the plurality of supporting members being spaced apart along the length direction of the first hole.

[0009] Preferably, the steel strip body is provided with a plurality of first holes, the reinforcing member is disposed on the steel strip body, and the reinforcing member is placed between two adjacent first holes.

[0010] Preferably, the reinforcing member includes a first protrusion, and a first protrusion is provided between every two adjacent first holes, and a plurality of first protrusions are provided on the same side of the steel strip body.

[0011] Preferably, the reinforcing member includes a second protrusion and a groove, with the second protrusion or the groove provided between each pair of adjacent first holes, and the second protrusion and the groove are alternately arranged, with the second protrusion and the groove located on the same side or both sides of the steel strip body.

[0012] Preferably, the first hole is triangular in shape, and the reinforcing member includes a second hole, which is disposed between two adjacent first holes, and the shape of the second hole is a triangle opposite to that of the first hole.

[0013] Preferably, the reinforcing member is disposed in the middle or lower part of the steel strip body.

[0014] A stapler comprising the aforementioned stapler steel band.

[0015] The beneficial effects of this invention are as follows: A first hole is provided on the steel belt body to increase the elasticity of the steel belt and meet the flexibility requirements of the swing head; a reinforcing member is provided in the steel belt body or the first hole to improve the rigidity of the steel belt while meeting the flexibility requirements of the swing head, thereby meeting the rigidity requirements of the firing mechanism to push the pin, preventing the steel belt from deforming in the firing direction of the stapler, ensuring that the firing mechanism fires in place, and ensuring that the surgery proceeds normally. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the steel strip for the anastomosis device provided in Embodiment 1 of the present invention;

[0017] Figure 2 This is a schematic diagram of the steel strip for the anastomosis device provided in Embodiment 2 of the present invention;

[0018] Figure 3 This is a schematic diagram of the steel strip for the stapler provided in Embodiment 3 of the present invention;

[0019] Figure 4 This is a schematic diagram of the steel strip for the stapler provided in Embodiment 4 of the present invention;

[0020] Figure 5 This is a schematic diagram of the steel strip for the anastomosis device provided in Embodiment 5 of the present invention.

[0021] In the picture:

[0022] 1. Steel strip body; 2. First hole; 31. Support rod; 32. Support component; 33. First protrusion; 341. Second protrusion; 342. Groove; 35. Second hole. Detailed Implementation

[0023] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In existing technologies, the firing rod is made of multiple layers of thin steel sheets to accommodate the swinging of the stapler head and the driving of the pusher block. It needs to meet both a certain degree of flexibility and a certain degree of rigidity. Therefore, during the firing process, the cutting force of the cutting blade and the resistance experienced by the pusher block vary depending on the thickness of the tissue encountered, resulting in different deformations of the firing rod. This leads to incomplete firing by the firing mechanism, affecting the normal progress of the surgery. The following provides a steel strip for the stapler to solve the above problems.

[0027] Example 1

[0028] like Figure 1As shown, this embodiment provides a steel band for a stapler, including a steel band body 1. The steel band body 1 has at least one first hole 2. A reinforcing member is provided on the steel band body 1 or within the first hole 2 to prevent deformation of the steel band body 1 in the firing direction of the stapler. The first hole 2 on the steel band body 1 increases the elasticity of the steel band, meeting the flexibility requirements of the head swing. The reinforcing member within the steel band body 1 or the first hole 2, while meeting the flexibility requirements of the head swing, increases the rigidity of the steel band, meeting the rigidity requirements of the firing mechanism's push pin, thus preventing deformation of the steel band in the firing direction of the stapler, ensuring the firing mechanism fires in place, and guaranteeing the normal progress of the surgery.

[0029] In this embodiment, a first hole 2 is provided on the steel strip body 1, extending along the length direction of the steel strip body 1, and a reinforcing member is provided inside the first hole 2. Specifically, the first hole 2 on the steel strip body 1 is relatively long. Although this can improve the flexibility of the steel strip, the rigidity of the steel strip is reduced. During the push-pin process, the steel strip is prone to deformation, causing the firing mechanism to fail to fire properly. Therefore, a reinforcing member is provided inside the first hole 2 to satisfy both the flexibility of the steel strip and the rigidity of the push-pin.

[0030] Furthermore, the reinforcing member includes multiple elastic support rods 31, with both ends of the support rods 31 connected to the wall of the first hole 2. The multiple support rods 31 are arranged in a crisscross pattern to form a mesh structure, which improves the structural rigidity of the steel strip. Specifically, the mesh structure is flush with both sides of the steel strip body 1, allowing the mesh structure to deform with the swing of the steel strip body 1 without affecting the flexibility of the steel strip, and also improving the structural strength of the steel strip. In this embodiment, every two support rods 31 are arranged diagonally across each other, and then adjacent support rods 31 are connected end-to-end to form a mesh structure. The structure is simple, easy to process, and provides support force along the length of the first hole 2, thereby increasing the rigidity of the steel strip, preventing deformation of the steel strip, and ensuring the firing mechanism fires in place.

[0031] In this embodiment, the support rod 31 is made of a flexible metal material. Preferably, the material of the support rod 31 is the same as that of the steel strip body 1, and it is integrally formed with the steel strip body 1 to improve the structural strength of the steel strip.

[0032] This embodiment also provides a stapler, including the aforementioned stapler steel band, which enables the stapler to be fired into position, ensuring that the surgery can be performed smoothly.

[0033] Example 2

[0034] like Figure 2As shown, this embodiment provides a steel band for a stapler, including a steel band body 1. The steel band body 1 has at least one first hole 2. A reinforcing member is provided on the steel band body 1 or within the first hole 2 to prevent deformation of the steel band body 1 in the firing direction of the stapler. The first hole 2 on the steel band body 1 increases the elasticity of the steel band, meeting the flexibility requirements of the head swing. The reinforcing member within the steel band body 1 or the first hole 2, while meeting the flexibility requirements of the head swing, increases the rigidity of the steel band, meeting the rigidity requirements of the firing mechanism's push pin, thus preventing deformation of the steel band in the firing direction of the stapler, ensuring the firing mechanism fires in place, and guaranteeing the normal progress of the surgery.

[0035] In this embodiment, a first hole 2 is provided on the steel strip body 1, extending along the length direction of the steel strip body 1, and a reinforcing member is provided inside the first hole 2. Specifically, the first hole 2 on the steel strip body 1 is relatively long. Although this can improve the flexibility of the steel strip, the rigidity of the steel strip is reduced. During the push-pin process, the steel strip is prone to deformation, causing the firing mechanism to fail to fire properly. Therefore, a reinforcing member is provided inside the first hole 2 to satisfy both the flexibility of the steel strip and the rigidity of the push-pin.

[0036] Furthermore, the reinforcing member includes multiple support members 32, which are connected to the wall of the first hole 2, and are spaced apart along the length of the first hole 2. Specifically, the support members 32 are connected to the opposite side walls of the first hole 2, and can swing and deform with the steel strip body 1 without affecting the flexibility requirements of the steel strip. The arrangement of multiple support members 32 provides support force to the steel strip along the length of the first hole 2, thereby increasing the rigidity of the steel strip, preventing deformation of the steel strip, and ensuring that the firing mechanism fires in place.

[0037] In this embodiment, the support member 32 can be a retaining ring or a rod-shaped structure. Preferably, the material of the support member 32 is the same as the material of the steel strip body 1.

[0038] This embodiment also provides a stapler, including the aforementioned stapler steel band, which enables the stapler to be fired into position, ensuring that the surgery can be performed smoothly.

[0039] Example 3

[0040] like Figure 3As shown, this embodiment provides a steel band for a stapler, including a steel band body 1. The steel band body 1 has at least one first hole 2. A reinforcing member is provided on the steel band body 1 or within the first hole 2 to prevent deformation of the steel band body 1 in the firing direction of the stapler. The first hole 2 on the steel band body 1 increases the elasticity of the steel band, meeting the flexibility requirements of the head swing. The reinforcing member within the steel band body 1 or the first hole 2, while meeting the flexibility requirements of the head swing, increases the rigidity of the steel band, meeting the rigidity requirements of the firing mechanism's push pin, thus preventing deformation of the steel band in the firing direction of the stapler, ensuring the firing mechanism fires in place, and guaranteeing the normal progress of the surgery.

[0041] In this embodiment, the steel strip body 1 is provided with a plurality of first holes 2, and a reinforcing member is disposed on the steel strip body 1, with the reinforcing member positioned between two adjacent first holes 2. The placement of the reinforcing member between two first holes 2 improves the rigidity of the steel strip and prevents deformation without affecting the oscillation of the steel strip.

[0042] Furthermore, the reinforcing member includes a first protrusion 33, with a first protrusion 33 provided between each pair of adjacent first holes 2, and multiple first protrusions 33 are provided on the same side of the steel strip body 1. Since the firing rod is composed of multiple steel strips stacked together, providing a first protrusion 33 on one side of the steel strip body 1 not only increases the rigidity of the steel strip, but also reduces the gap between adjacent steel strips, thereby reducing the deformation space of the steel strip and effectively preventing deformation of the steel strip.

[0043] The first protrusion 33 is integrally formed with the steel strip body 1 to improve the structural strength of the steel strip and facilitate processing.

[0044] In this embodiment, the reinforcing member can be disposed in the middle of the steel strip body 1 to prevent deformation of the steel strip without affecting its oscillation. The reinforcing member can also be disposed in the lower part of the steel strip body 1 to improve the flexibility of the steel strip while preventing deformation.

[0045] This embodiment also provides a stapler, including the aforementioned stapler steel band, which enables the stapler to be fired into position, ensuring that the surgery can be performed smoothly.

[0046] Example 4

[0047] like Figure 4As shown, this embodiment provides a steel band for a stapler, including a steel band body 1. The steel band body 1 has at least one first hole 2. A reinforcing member is provided on the steel band body 1 or within the first hole 2 to prevent deformation of the steel band body 1 in the firing direction of the stapler. The first hole 2 on the steel band body 1 increases the elasticity of the steel band, meeting the flexibility requirements of the head swing. The reinforcing member within the steel band body 1 or the first hole 2, while meeting the flexibility requirements of the head swing, increases the rigidity of the steel band, meeting the rigidity requirements of the firing mechanism's push pin, thus preventing deformation of the steel band in the firing direction of the stapler, ensuring the firing mechanism fires in place, and guaranteeing the normal progress of the surgery.

[0048] In this embodiment, the steel strip body 1 is provided with a plurality of first holes 2, and a reinforcing member is disposed on the steel strip body 1, with the reinforcing member positioned between two adjacent first holes 2. The placement of the reinforcing member between two first holes 2 improves the rigidity of the steel strip and prevents deformation without affecting the oscillation of the steel strip.

[0049] Furthermore, the reinforcing member includes a second protrusion 341 and a groove 342. A second protrusion 341 or groove 342 is provided between each pair of adjacent first holes 2, and the second protrusion 341 and groove 342 are alternately arranged. The second protrusion 341 and groove 342 are located on the same side or both sides of the steel strip body 1. Since the firing rod is composed of multiple stacked steel strips, providing the second protrusion 341 on the steel strip body 1 not only increases the rigidity of the steel strip but also reduces the gap between adjacent steel strips, thereby reducing the deformation space of the steel strip and effectively preventing deformation. Providing the groove 342 on the steel strip body 1 can further improve the swing flexibility of the steel strip. To improve the design flexibility of the steel strip, the second protrusion 341 and groove 342 can be located on the same side of the steel strip body 1, or the second protrusion 341 can be located on one side of the steel strip body 1, and the groove 342 can be located on the other side of the steel strip body 1.

[0050] The second protrusion 341 is integrally formed with the steel strip body 1 to improve the structural strength of the steel strip and facilitate processing.

[0051] In this embodiment, the reinforcing member can be disposed in the middle of the steel strip body 1 to prevent deformation of the steel strip without affecting its oscillation. The reinforcing member can also be disposed in the lower part of the steel strip body 1 to effectively prevent deformation of the steel strip while improving its flexibility.

[0052] This embodiment also provides a stapler, including the aforementioned stapler steel band, which enables the stapler to be fired into position, ensuring that the surgery can be performed smoothly.

[0053] Example 5

[0054] like Figure 5As shown, this embodiment provides a steel band for a stapler, including a steel band body 1. The steel band body 1 has at least one first hole 2. A reinforcing member is provided on the steel band body 1 or within the first hole 2 to prevent deformation of the steel band body 1 in the firing direction of the stapler. The first hole 2 on the steel band body 1 increases the elasticity of the steel band, meeting the flexibility requirements of the head swing mechanism. The reinforcing member within the steel band body 1 or the first hole 2, while meeting the flexibility requirements of the head swing mechanism, increases the strength of the steel band, meeting the rigidity requirements of the firing mechanism's push pin, thus preventing deformation of the steel band body in the firing direction of the stapler, ensuring the firing mechanism fires in place, and guaranteeing the normal progress of the surgery.

[0055] In this embodiment, the steel strip body 1 is provided with a plurality of first holes 2, and a reinforcing member is disposed on the steel strip body 1, with the reinforcing member positioned between two adjacent first holes 2. The placement of the reinforcing member between two first holes 2 improves the rigidity of the steel strip and prevents deformation without affecting the oscillation of the steel strip.

[0056] Furthermore, the first hole 2 is triangular in shape, and the reinforcing member includes a second hole 35, which is disposed between two adjacent first holes 2, and the shape of the second hole 35 is a triangle opposite to that of the first holes 2. The inclusion of the first hole 2 and the second hole 35 increases the flexibility of the steel strip. Both the first hole 2 and the second hole 35 are triangular in shape, and triangular structures offer good stability. Moreover, the complementary positions of the first hole 2 and the second hole 35 enhance the rigidity of the steel strip, effectively preventing deformation.

[0057] Furthermore, the shapes of the first hole 2 and the second hole 35 are preferably isosceles triangles for ease of processing, and the first hole 2 and the second hole 35 are arranged alternately along the length of the steel strip. The first hole 2 and the second hole 35 can also be right triangles, which is not specifically limited here.

[0058] In this embodiment, the reinforcing member can be disposed in the middle of the steel strip body 1 to prevent deformation of the steel strip without affecting its oscillation. The reinforcing member can also be disposed in the lower part of the steel strip body 1, effectively preventing deformation while improving the flexibility of the steel strip. Furthermore, the first hole 2 can also be disposed in the middle or lower part of the steel strip body 1.

[0059] This embodiment also provides a stapler, including the aforementioned stapler steel band, which enables the stapler to be fired into position, ensuring that the surgery can be performed smoothly.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A steel strip for a stapler, characterized in that, The device includes a steel strip body (1), on which a first hole (2) is provided. The first hole (2) extends along the length direction of the steel strip body (1). A reinforcing member is provided in the first hole (2). The reinforcing member can prevent the steel strip body (1) from deforming in the firing direction of the stapler. Alternatively, the steel strip body (1) is provided with multiple first holes (2). A reinforcing member is provided on the steel strip body (1), and the reinforcing member is placed between two adjacent first holes (2). The reinforcing member can prevent the steel strip body (1) from deforming in the firing direction of the stapler.

2. The steel strip for the stapler according to claim 1, characterized in that, When the reinforcing member is placed in the first hole (2), the reinforcing member includes a plurality of elastic support rods (31), the two ends of the support rods (31) are connected to the hole wall of the first hole (2), and the plurality of support rods (31) are arranged in a cross pattern to form a mesh structure.

3. The steel strip for the stapler according to claim 1, characterized in that, When the reinforcing member is disposed in the first hole (2), the reinforcing member includes a plurality of supporting members (32), the supporting members (32) are connected to the hole wall of the first hole (2), and the plurality of supporting members (32) are spaced apart along the length direction of the first hole (2).

4. The steel strip for the stapler according to claim 1, characterized in that, When the reinforcing member is placed between two adjacent first holes (2), the reinforcing member includes a first protrusion (33), and a first protrusion (33) is provided between each pair of adjacent first holes (2), and a plurality of first protrusions (33) are provided on the same side of the steel strip body (1).

5. The steel strip for the stapler according to claim 1, characterized in that, When the reinforcing member is placed between two adjacent first holes (2), the reinforcing member includes a second protrusion (341) and a groove (342). The second protrusion (341) or the groove (342) is provided between each pair of adjacent first holes (2), and the second protrusion (341) and the groove (342) are alternately arranged. The second protrusion (341) and the groove (342) are located on the same side or both sides of the steel strip body (1).

6. The steel strip for the stapler according to claim 1, characterized in that, When the reinforcing member is placed between two adjacent first holes (2), the shape of the first hole (2) is triangular. The reinforcing member includes a second hole (35), which is disposed between two adjacent first holes (2), and the shape of the second hole (35) is a triangle opposite to the orientation of the first hole (2).

7. The steel strip for a stapler according to any one of claims 1 or 4-6, characterized in that, The reinforcing member is disposed in the middle or lower part of the steel strip body (1).

8. A stapler, characterized in that, Includes the steel strip for the stapler as described in any one of claims 1-7.

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