Monocyclic stapling staples

Abstract

The utility model discloses a single ring anastomosis nail belongs to medical instrument technical field. The single ring anastomosis nail of automatic closure includes first nail body and second nail body, and the second nail body is connected with first nail body each other, first nail body with second nail body is set up with the angle, and the one end of second nail body is away from first nail body and is provided with puncture nail tip portion, and puncture nail tip portion is curved to first nail body's direction, and first nail body with second nail body is surrounded and is formed with a closed single ring mechanism. The utility model not only reduces the number of puncture tissue, and also can complete the suturing of tissue without embedding the nail pit of resistance nail seat.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a single-ring anastomosis staple. Background Technology

[0002] Anastomosis staples, also known as surgical staples, are medical devices used in surgery to connect or close tissues, organs, or blood vessels. Compared to traditional hand suturing, the use of anastomosis staples greatly simplifies the surgical procedure and improves surgical efficiency and safety.

[0003] After closure, anastomotic staples typically exhibit a double-ring structure (in the context of mini-anastomosing devices, existing U-shaped or inverted trapezoidal staples are bent into a B-shape). This structure uses pressure to induce plastic deformation of the material, thus forming the staple. Not only does the closure process require the staple body to be precisely embedded in the pit of the abutment, but for mini-anastomotic staples, due to their extremely small size, the machining precision requirements for the pit are extremely high, significantly increasing the manufacturing difficulty. This often leads to incomplete staple formation, resulting in adverse events such as staple residue or anastomotic leakage, posing a potential threat to the patient's treatment outcome. Furthermore, the staple needs to penetrate the tissue four times during closure. In this context, if the staples are too densely distributed, it will exacerbate tissue damage, potentially causing tissue breakage, leakage, or fracture at the anastomosis site, thereby affecting the tissue repair process and overall healing effect.

[0004] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0005] The purpose of this invention is to provide a single-ring anastomosis staple that not only reduces the number of tissue punctures, but also eliminates the need for a staple pit to be embedded in the anvil, thus enabling tissue suturing.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] Automatically closing single-ring staples include:

[0008] First nail body;

[0009] The second nail body is connected to the first nail body. The first nail body and the second nail body are set at an angle. The end of the second nail body away from the first nail body is provided with a piercing nail tip. The piercing nail tip is bent toward the first nail body. The first nail body and the second nail body together form a closed single-ring mechanism.

[0010] As an alternative to single-ring anastomosis staples, the first staple body is provided with a limiting spike facing the inner sidewall of the second staple body, and the angle between the limiting spike and the first staple body is a first angle value.

[0011] As an alternative to single-ring staples, the first angle value is less than 90°.

[0012] As an alternative to single-ring anastomosis staples, a fixing part is provided at the end of the first staple body away from the second staple body, and the fixing part is used for rotatable connection with the staple cartridge.

[0013] As an alternative to a single-ring anastomosis staple, the tip of the limiting spike is bent toward the fixing part.

[0014] As an alternative to single-ring anastomosis staples, the fixing part is provided with a rotating center hole, and the pin of the staple cartridge passes through the rotating center hole.

[0015] As an alternative to single-ring anastomosis staples, the first staple body and the second staple body are integrally formed.

[0016] As an alternative to single-ring anastomosis staples, the included angle between the first staple body and the second staple body is a second angle value, which is less than 90°.

[0017] As an optional option for single-ring anastomosis staples, the single-ring anastomosis staples are made of nickel-titanium alloy.

[0018] As an optional solution for single-ring anastomosis staples, the single-ring anastomosis staple is made of magnesium alloy.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The automatically closing single-ring anastomosis staple provided by this utility model has a first staple body and a second staple body that are not only connected to each other and set at an angle, but also have the tip of the puncture staple on the second staple body bent towards the first staple body. Without external force, the first and second staple bodies together form a closed single-ring mechanism. Before use, the puncture staple tip on the second staple body is unfolded relative to the first staple body by the limiting action of the two staple cartridge internal limiting plates. Then, the first staple body is pushed by a staple pusher, and the single-ring anastomosis staple gradually withdraws from the limiting plates in the staple cartridge. The puncture staple tip automatically closes and bends as it passes through the tissue, ultimately completing the suturing of the tissue as the single-ring anastomosis staple closes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the single-ring anastomotic staple in the unfolded state in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the unfolded single-ring anastomotic staple being pushed by the pusher plate in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the single-ring anastomotic staple puncturing tissue as shown in the embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the single-ring stapler after the limiting piece inside the staple cartridge is removed in an embodiment of this utility model;

[0026] Figure 5 This is a first-view structural diagram of the single-ring anastomotic staple in the unfolded state under the action of the limiting piece in the staple cartridge, according to an embodiment of the present utility model.

[0027] Figure 6 This is a second-view structural diagram of the single-ring anastomotic staple in the unfolded state under the action of the limiting piece in the staple cartridge, according to an embodiment of this utility model.

[0028] Figure label:

[0029] 100. Single-ring staple; 200. Tissue; 300. Staple pusher plate; 400. Staple cartridge internal limit plate;

[0030] 1. First nail body; 2. Second nail body; A. First angle value; B. Second angle value;

[0031] 11. Limiting spike; 12. Fixing part; 121. Rotation center hole;

[0032] 21. Piercing the tip of the nail. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] To reduce the number of tissue punctures and achieve tissue suturing without the need for anchor pits, this embodiment provides a single-ring anastomosis staple, which is described below in conjunction with... Figures 1 to 6 The specific content of this embodiment will be described in detail.

[0038] The automatically closing single-ring anastomosis staple 100 in this embodiment includes a first staple body 1 and a second staple body 2. The second staple body 2 is connected to the first staple body 1, and the first staple body 1 and the second staple body 2 are set at an angle. The end of the second staple body 2 away from the first staple body 1 is provided with a piercing staple tip 21, which is bent toward the first staple body 1. The first staple body 1 and the second staple body 2 together form a closed single-ring mechanism.

[0039] In summary, the single-ring anastomosis staple 100 provided in this embodiment not only has a first staple body 1 and a second staple body 2 connected to each other and arranged at an angle, but also has the puncture tip 21 on the second staple body 2 bent towards the first staple body 1. Without external force, the first staple body 1 and the second staple body 2 together form a closed single-ring mechanism. Before use, the puncture tip 21 on the second staple body 2 is unfolded relative to the first staple body 1 by the limiting action of the two internal limiting plates 400 of the staple cartridge. Then, the pusher plate 300 pushes the first staple body 1, and the single-ring anastomosis staple 100 gradually withdraws from the internal limiting plates 400 of the staple cartridge. The puncture tip 21 automatically closes and bends as it passes through the tissue 200, ultimately completing the suturing of the tissue 200 while the single-ring anastomosis staple 100 closes. The single-ring anastomosis staple 100 provided in this embodiment not only reduces the number of punctures into the tissue 200, but also eliminates the need for embedding the staple pit in the anvil, thus enabling the suturing of the tissue 200.

[0040] Furthermore, such as Figure 1 Combination Figure 4 As shown, a limiting spur 11 is provided on the inner sidewall of the first nail body 1 facing the second nail body 2, and the included angle between the limiting spur 11 and the first nail body 1 is a first angle value A. By adding the limiting spur 11, the limiting spur 11 is preferentially anchored into the tissue 200, ensuring a more stable anastomosis process. Furthermore, in this embodiment, the first angle value A is less than 90°.

[0041] Furthermore, a fixing part 12 is provided at the end of the first nail body 1 away from the second nail body 2, and the fixing part 12 is used for rotatable connection with the nail cartridge. During the automatic closing single-ring anastomosis nail 100 pushes and anastomoses with the pusher plate 300, the anastomosis nail rotates around the fixing part 12.

[0042] Furthermore, the tip of the limiting needle 11 is bent toward the fixing part 12, which facilitates the tip of the limiting needle 11 to penetrate the tissue 200 during the rotation of the single ring anastomosis staple 100 and reduces the wound size.

[0043] Optionally, the fixing part 12 is provided with a rotation center hole 121, and the pin of the staple cartridge passes through the rotation center hole 121. By adding a rotation center hole 121 to the fixing part 12, it is convenient to install the single-ring staple 100 in the staple cartridge.

[0044] Furthermore, the first nail body 1 and the second nail body 2 are integrally formed. Optionally, they can be manufactured by laser-cutting sheet metal or welding wire.

[0045] Furthermore, the included angle between the first staple body 1 and the second staple body 2 is a second angle value B, which is less than 90°. Since the second angle value B is an acute angle, it helps to miniaturize the design of the single-ring staple 100.

[0046] In some applications, the single-ring anastomosis staple 100 is further made of nickel-titanium alloy. Nickel-titanium alloy possesses excellent shape memory effect and superelasticity, allowing the staple to quickly return to its pre-set shape after implantation, ensuring a tight closure of the tissue 200. This physical property helps reduce surgical time and improve surgical efficiency. As a biocompatible material, nickel-titanium alloy is unlikely to cause rejection or inflammatory reactions in the human body. This means that after implantation, the staple can coexist peacefully with the surrounding tissue 200, reducing the risk of postoperative infection and complications. After implantation, the nickel-titanium alloy staple applies uniform and strong pressure to the tissue 200, fixing it together. As the tissue 200 gradually grows and heals, the compressed portion gradually necroses and detaches, eventually forming a stable anastomosis. This process helps accelerate the healing and recovery of the tissue 200. Compared to traditional manual suturing, the use of nickel-titanium alloy staples can reduce postoperative pain, swelling, and discomfort. This is because the staples do not need to be removed, avoiding the pain and discomfort associated with suture removal. At the same time, the small size of the staples also reduces postoperative scarring and improves the patient's postoperative quality of life.

[0047] In other applications, the single-ring anastomosis staple 100 is further made of magnesium alloy. Magnesium alloy, as a novel biomedical material, possesses excellent biocompatibility. This means that magnesium alloy anastomosis staples are less likely to cause rejection or inflammatory reactions after implantation, helping to reduce the risk of postoperative infection and complications. Furthermore, magnesium alloy anastomosis staples can gradually degrade in the body, avoiding the pain and inconvenience of a secondary surgery required to remove traditional metal anastomosis staples. During the degradation process, the magnesium ions released by the magnesium alloy anastomosis staples have a certain promoting effect on cell growth and proliferation, which is beneficial to tissue healing and recovery.

[0048] In summary, the single-ring anastomotic staple 100 provided in this embodiment has a single-ring structure. Before being stapled, it is located inside the staple cartridge in an unfolded state, and the staple legs are kept open by the limiting plate 400 inside the staple cartridge. The fixed end of the single-ring anastomotic staple 100 is interference-fitted with the staple cartridge and can rotate around the rotation center hole 121 of the fixed part 12. When the pusher plate 300 moves along the anastomotic staple, the single-ring anastomotic staple 100 rotates around the fixed end, and the tip 21 of the piercing staple and the second staple body 2 successively pass through the elastic limiting plate inside the staple cartridge and unfold from the staple cartridge. The staple legs expand self-expanding in the absence of mechanical restraint, and the staple legs bend to form a staple. The single-ring structure of the single-ring anastomotic staple 100 has a larger anastomotic curvature, reducing stress concentration and stress corrosion. Moreover, it penetrates less tissue 200, causing less damage to tissue 200, and does not require staple pit machining.

[0049] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A single-ring anastomotic staple, characterized in that, include: First nail body (1); The second nail body (2) is connected to the first nail body (1). The first nail body (1) and the second nail body (2) are set at an angle. The end of the second nail body (2) away from the first nail body (1) is provided with a piercing nail tip (21). The piercing nail tip (21) is bent toward the first nail body (1). The first nail body (1) and the second nail body (2) together form a closed single-ring mechanism.

2. The single-ring anastomosis staple according to claim 1, characterized in that, The first nail body (1) is provided with a limiting spike (11) facing the inner wall of the second nail body (2), and the included angle between the limiting spike (11) and the first nail body (1) is a first angle value (A).

3. The single-ring anastomosis staple according to claim 2, characterized in that, The first angle value (A) is less than 90°.

4. The single-ring anastomosis staple according to claim 2, characterized in that, The first nail body (1) is provided with a fixing part (12) at the end away from the second nail body (2), and the fixing part (12) is used to rotately connect with the nail cartridge.

5. The single-ring anastomosis staple according to claim 4, characterized in that, The tip of the limiting spike (11) is bent toward the fixing part (12).

6. The single-ring anastomosis staple according to claim 4, characterized in that, The fixing part (12) is provided with a rotating center hole (121), and the pin of the nail cartridge passes through the rotating center hole (121).

7. The single-ring anastomosis staple according to claim 2, characterized in that, The first nail body (1) and the second nail body (2) are integrally formed.

8. The single-ring anastomosis staple according to any one of claims 1-7, characterized in that, The included angle between the first nail body (1) and the second nail body (2) is a second angle value (B), which is less than 90°.

9. The single-ring anastomosis staple according to claim 8, characterized in that, The single-ring anastomosis staple is made of nickel-titanium alloy.

10. The single-ring anastomosis staple according to claim 8, characterized in that, The single-ring anastomosis staple is made of magnesium alloy.

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