A disposable laparoscopic trocar puncture hole suture device

Abstract

This invention provides a disposable laparoscopic puncture hole suture device, aiming to solve the problems of complex design, inconvenient operation, high cost, and infection risk caused by reuse in existing technologies. The suture device adopts a stainless steel needle body and a non-toxic plastic handle, with a simple design and low manufacturing cost. The needle body is flat and has a 7° angle, combined with a T-shaped suture groove, to ensure accurate puncture and efficient suturing, avoiding needle bending problems. Its disposable nature effectively prevents the risk of contamination caused by reuse, making it suitable for deep operations. Under laparoscopic monitoring, suturing of various layers such as fascia and peritoneum can be completed through the original puncture hole, preventing postoperative complications. This design improves surgical safety and efficiency, providing a convenient and safe solution for minimally invasive surgery.

Description

Technical Field

[0001] This utility model belongs to the field of laparoscopic incision suturing technology, specifically relating to a disposable laparoscopic puncture hole suturing device. Background Technology

[0002] Laparoscopic surgery, as a modern minimally invasive surgical technique, is widely used due to its advantages such as minimal trauma and rapid recovery. However, suturing the puncture site is a crucial step in laparoscopic surgery, directly affecting the patient's postoperative recovery and the safety of the procedure. Therefore, developing an efficient, safe, and easy-to-use laparoscopic puncture site suturing device is of paramount importance.

[0003] Existing laparoscopic puncture site closure devices mainly consist of three parts: a handle, a needle holder, and a puncture needle. Their working principle involves controlling the puncture force by gripping the handle, controlling the needle direction by using the needle holder, and guiding the suture into the abdominal cavity under laparoscopic monitoring. Finally, the suture is removed from the abdominal cavity, completing the closure of the puncture site. While this design concept is theoretically feasible, it faces a series of problems and challenges in practical application.

[0004] First, the existing design and manufacturing processes are complex, which not only increases manufacturing costs but also places higher demands on the operation of the equipment. Especially in emergency situations, complex procedures may increase surgical risks. Second, the thinness of the puncture needle makes it prone to bending during use, affecting the accuracy and success rate of suturing. Furthermore, many existing puncture-card suture devices are reusable; if sterilization is not rigorous, they could become a source of viral and bacterial contamination, increasing the risk of surgical infection.

[0005] To address the aforementioned issues, numerous patents have proposed solutions, such as the utility model patents disclosed in patent publication numbers CN204246175U, CN 213249385U, CN 215424862U, CN 214966078U, CN 217285903U, and CN217960186U. These patents have made improvements in areas such as simplifying structural design and enhancing safety. However, these solutions still have certain limitations, such as the needle bar being thin and easily bent, and the handle being uncomfortable to operate, failing to completely resolve the defects existing in the prior art.

[0006] In conclusion, although there are currently several laparoscopic puncture hole suture devices available on the market, how to further optimize their structural design, reduce production costs, and improve ease of use and safety remains a key issue that urgently needs to be addressed in this field. Utility Model Content

[0007] The present invention aims to provide a disposable laparoscopic puncture hole suture device to solve the technical problems of complex structural design, low safety and high production cost of existing laparoscopic puncture hole suture devices.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A disposable laparoscopic puncture hole suture device includes a handle and a needle holder. The upper end of the needle holder is connected to the middle of the handle, and the lower end of the needle holder is connected to a needle bar. The lower end of the needle bar is a needle body with a flat structure and a needle tip at the front end. The needle body and the needle bar form an angle of 4° to 8°. A suture groove is provided on the needle body. The suture groove has a T-shaped structure and consists of an upper groove, a lower groove, and a groove opening.

[0009] Furthermore, the needle body gradually widens from the upper part to the middle, and gradually narrows from the middle part to the tip.

[0010] Furthermore, the handle and needle holder are integrally molded, made of non-toxic plastic, while the needle bar and needle body are made of stainless steel.

[0011] Furthermore, the handle, needle holder, and needle bar are all round rod structures. The length and diameter of the handle are 60mm and 12mm, the length and diameter of the needle holder are 40mm and 8mm, the length and diameter of the needle bar are 100mm and 3mm, the needle body is 20mm long, the width of the middle part of the needle body is 3.5mm, the length of the suture groove is 5mm, the length of the groove opening is 2mm, and the included angle between the needle body and the needle bar is 7°.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: the disposable laparoscopic puncture hole suture device has many significant advantages; firstly, its simple design and simplified manufacturing process not only reduce production costs but also make the operation of the device easier to learn and improve surgical efficiency; the use of stainless steel needle bar and needle body, as well as handle and needle holder made of non-toxic plastic injection molding, ensures the safety and durability of the instrument; in particular, the flat structure of the needle body and the 7° angle design, combined with the T-shaped suture groove, enhance the accuracy of puncture and the success rate of suturing, effectively avoiding the problem of needle bending.

[0013] Furthermore, this single-use suture device significantly reduces the risk of viral or bacterial contamination due to reuse, ensuring patient safety. In practice, laparoscopic monitoring allows for effective suturing of the puncture site without additional incisions, making it particularly suitable for deep procedures in obese patients and resolving the limitations of traditional suturing methods in achieving ideal results. This not only prevents postoperative complications such as bleeding, hematoma, and puncture site hernia but also improves the overall safety of the surgery, demonstrating its strong practicality and wide applicability. In conclusion, this suture device provides a safer, more efficient, and convenient solution for laparoscopic surgery. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 Axonometric view of a disposable laparoscopic puncture hole suture device; Figure 2 Another axonometric view of a disposable laparoscopic puncture hole suture device; Figure 3 A front view of a disposable laparoscopic puncture hole suture device; Figure 4 for Figure 3 The left view; Figure 5 for Figure 2 Enlarged view of section H in the middle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] The present invention will be further described in detail below with reference to the embodiments.

[0017] like Figure 1-5 As shown, here is a specific embodiment 1 of the disposable laparoscopic puncture hole suturing device provided by this utility model: A disposable laparoscopic puncture hole suture device includes a handle 1 and a needle holder 2. The upper end of the needle holder 2 is connected to the middle of the handle 1. Preferably, the handle 1 and the needle holder 2 are made of non-toxic plastic by injection molding in one piece. Both the handle 1 and the needle holder 2 are round rod structures. The length and diameter of the handle 1 are 60 mm and 12 mm, respectively. The length and diameter of the needle holder 2 are 40 mm and 8 mm, respectively. The lower end of the needle holder 2 is connected to a needle rod 3. The length and diameter of the needle rod 3 are 100 mm and 3 mm, respectively.

[0018] The lower end of the needle bar 3 is the needle body 4. The needle bar 3 and the needle body 4 are made of stainless steel. The needle body 4 has a flat structure. The front end of the needle body 4 forms a needle tip 5. The needle body 4 gradually widens from the upper part to the middle part and gradually narrows from the middle part to the needle tip 5. The needle body 4 is 20mm long and 3.5mm wide in the middle part. The needle body 4 and the needle bar 3 form a 7° angle. A suture groove 6 with a length of 5mm is opened on the needle body 4. The suture groove 6 has a T-shaped structure and consists of an upper groove 7, a lower groove 8 and a groove opening 9. The groove opening 9 is 2mm long. The upper groove 7 can bring the suture into the abdominal cavity during puncture, and the lower groove 8 can bring the suture out of the abdominal cavity with the assistance of an assistant.

[0019] The method of using the disposable laparoscopic puncture hole suture device in this embodiment is as follows: Hold the handle 1 to control the needle insertion force, and the needle holder 2 to control the needle insertion direction; under laparoscopic monitoring, guide the suture through the groove opening 9 into the upper groove 7. The suture should be tightened during puncture to prevent slippage. Like all laparoscopic instrument operations, needle insertion must be performed under laparoscopic monitoring. Before the needle tip 5 penetrates the peritoneum, gently lift the peritoneum, and an assistant should help push aside surrounding intestinal or other organs. The surgeon continuously adjusts the needle insertion direction to avoid pelvic and abdominal organs and prevent damage. Once the suture device enters the abdominal cavity, the suture brought into the abdominal cavity can be seen. The assistant clamps the suture with suture forceps, and the surgeon withdraws the suture device outward. It re-enters the abdominal cavity through the fascia and peritoneum on the other side of the puncture hole (again under laparoscopic monitoring). The assistant assists the surgeon in bringing the suture through the groove opening 9 into the lower groove 8. The surgeon can then bring the suture out of the abdominal cavity and ligate the suture to complete the suturing of the puncture hole.

[0020] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disposable laparoscopic puncture hole suturing device, characterized in that: It includes a handle and a needle holder. The upper end of the needle holder is connected to the middle of the handle, and the lower end of the needle holder is connected to the needle bar. The lower end of the needle bar is the needle body. The needle body has a flat structure, and the front end of the needle body forms a needle tip. The needle body and the needle bar form an angle of 4° to 8°. A suture groove is opened on the needle body. The suture groove has a T-shaped structure and consists of an upper groove, a lower groove, and a groove opening.

2. The disposable laparoscopic puncture hole suturing device according to claim 1, characterized in that: The needle body gradually widens from the upper part to the middle, and gradually narrows from the middle to the tip.

3. The disposable laparoscopic puncture hole suturing device according to claim 2, characterized in that: The handle and needle holder are made of non-toxic plastic, while the needle bar and needle body are made of stainless steel.

4. The disposable laparoscopic puncture hole suturing device according to claim 3, characterized in that: The handle, needle holder, and needle bar are all round rod structures. The length and diameter of the handle are 60mm and 12mm respectively, the length and diameter of the needle holder are 40mm and 8mm respectively, the length and diameter of the needle bar are 100mm and 3mm respectively, the needle body is 20mm long, the width of the middle part of the needle body is 3.5mm, the length of the suture groove is 5mm, the length of the groove opening is 2mm, and the included angle between the needle body and the needle bar is 7°.

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