Nail cabin of magnesium alloy cutting stitching instrument

By combining magnesium-zinc alloy and titanium alloy suture staples, the problems of titanium alloy suture staples being non-absorbable and non-anti-tumor, the accuracy of suturing and anti-tumor effect are achieved, the suturing needs of different tissues are adapted, the cutting edge distance is shortened, and more healthy lung tissue is retained.

CN223336159UActive Publication Date: 2025-09-16SHANGHAI PULMONARY HOSPITAL (SHANGHAI OCCUPATIONAL DISEASE PREVENTION & CONTROL INSTITUTE)
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Patent Information

Application Number
CN202422708151.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-16
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

The titanium alloy suture staples currently used in minimally invasive thoracic surgery are non-absorbable, which may affect the patient's subsequent surgery. They also have no anti-tumor effect on lung tumor patients, and the cutting edge distance is too long, affecting lung function.

Method used

The suture nails are made of a combination of magnesium-zinc alloy and titanium alloy. The magnesium-zinc alloy nails slowly degrade and release magnesium and zinc ions, which have anti-tumor effects. The titanium alloy nails provide high strength and corrosion resistance. Combined with multiple nail outlets and cutting groove design, the accuracy and flexibility of suturing are ensured.

Benefits of technology

Shorten the cutting edge distance, improve the accuracy and flexibility of suturing, and reduce damage to tissues. The degradation of magnesium-zinc alloy nails releases ions with anti-tumor effects, and titanium alloy nails ensure the reliability of suturing and adapt to the suturing needs of different tissues.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of thoracic surgery endoscope, and discloses a magnesium alloy cutting stitching instrument nail cabin, which comprises a nail cabin, and is characterized in that degradable magnesium-zinc alloy is used for preparing stitching nails, and the stitching nails are combined with titanium alloy nails for combined application, firstly, the titanium alloy nails are combined for combined application; the degradability of the suturing nail is considered, and meanwhile, a small number of titanium alloy nails are reserved to ensure the lasting physical strength of the wound suturing part; secondly, magnesium and zinc ions released when the magnesium-zinc alloy suturing nail is slowly degraded can continuously play an anti-tumor role at the cutting edge, the cutting edge distance can be properly shortened in a lung tumor operation, namely, the distance between a cutting line and the tumor edge when lung tissue is cut, the cutting edge distance which is currently recognized in the world is 2 cm, and then the purpose of retaining healthy lung tissue as much as possible is achieved; finally, the heights of the metal nails are gradually reduced from the outer side to the inner side, after the tissue is cut, the height of the metal nail closest to the cutting edge is the lowest, the provided suturing force is the largest, and the suturing effect can be fully guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of thoracic surgery laparoscopy, in particular to a nail cabin of a magnesium alloy cutting and stapling device. Background Art

[0002] Minimally invasive thoracic surgery occupies an important position in modern medicine. With its advantages such as smaller incisions, less bleeding, and faster patient recovery, it has gradually become the mainstream method of thoracic surgery. In these minimally invasive surgeries, cutting staplers are indispensable key instruments.

[0003] Currently, the metal staples in the staple chambers of the existing minimally invasive thoracic surgery cutting and staplers on the market are mostly made of titanium alloy. After the wound heals, the metal staples remain permanently and are non-absorbable. Residual metal staples may affect the patient's subsequent surgery. In addition, titanium alloy staples can only serve as physical sutures. For patients with lung tumors, tracheal tumors, and other patients who may have potential positive resection margins, titanium alloy staples have no anti-tumor effect and often require the removal of more healthy tissue. The currently recognized resection margin distance in the world is 2CM. For patients with poor lung function, reducing the resection margin distance can preserve more lung tissue and more postoperative lung function, thereby improving the effectiveness of surgical treatment and allowing more patients who have lost the opportunity for surgery due to poor lung function to receive surgical treatment. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a magnesium alloy cutting and stapling device staple chamber.

[0005] The utility model is implemented by the following technical solution: a magnesium alloy cutting and stapling device nail cabin, comprising a nail cabin, a cutting line groove is opened on the surface of the nail cabin, and metal nails 1, 2 and 3 are sequentially arranged on both sides of the inner wall of the nail cabin.

[0006] Through the above technical solution, the presence of the cutting groove helps to improve the accuracy of cutting and reduce unnecessary damage to surrounding tissues. The setting of multiple metal nails can provide different suturing effects as needed, increasing the flexibility of suturing.

[0007] As a further improvement of the above solution, the surface material of the metal nail 1 and the metal nail 2 is magnesium-zinc alloy.

[0008] The excellent biocompatibility achieved through the aforementioned technical solution means that in medical applications, the patient's body is more likely to accept it, reducing the risk of infection and other complications. The appropriate strength ensures the secureness of the suture and promotes wound healing. The magnesium and zinc ions released during the slow degradation of the magnesium-zinc alloy suture staples can exert a sustained anti-tumor effect at the resection margin. In lung tumor surgery, the resection margin distance (the distance between the cutting line and the edge of the tumor) can be appropriately shortened. The currently recognized resection margin distance is 2 cm, thereby preserving as much healthy lung tissue as possible.

[0009] As a further improvement of the above solution, the material of the three surfaces of the metal nail is titanium alloy.

[0010] Through the above technical solution, high strength ensures the reliability of suturing, and the suturing effect can be guaranteed whether it is for tissues that are difficult to sew or when subjected to large external forces during the suturing process. Good corrosion resistance enables the metal nail to maintain its performance for a long time under the complex physiological environment in the body, and will not affect the suturing effect or cause adverse effects on the body due to corrosion.

[0011] As a further improvement of the above solution, a first nail outlet is provided on the upper surface of the nail cabin, and the first nail outlet is located above the metal nail 1.

[0012] Through the above technical solution, the accurate position setting of the nail outlet ensures that the metal nail can be pushed out according to the predetermined trajectory and direction, thereby improving the accuracy of suturing and reducing the possibility of misoperation.

[0013] As a further improvement of the above solution, a second nail outlet is provided on the upper surface of the nail compartment, and the second nail outlet is located above the second metal nail.

[0014] Through the above technical solution, the accuracy of pushing out the metal nail is also improved, and multiple nail outlets and corresponding metal nails can achieve layered or partitioned suturing of tissues, thereby improving the diversity and effect of suturing.

[0015] As a further improvement of the above solution, a third nail outlet is provided on the upper surface of the nail compartment, and the third nail outlet is located above the metal nail three.

[0016] Through the above technical solution, the accuracy of the three metal nail ejections is guaranteed. The three nail outlets and the corresponding metal nails cooperate to perform tissue suturing operations more comprehensively and meticulously to meet different suturing needs.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model prepares suture nails by using a degradable magnesium-zinc alloy and combines them with titanium alloy nails for joint application. Firstly, the combination with the titanium alloy nails can retain a small amount of titanium alloy nails while taking into account the degradability of the suture nails to ensure the lasting physical strength of the wound suture. Secondly, the magnesium and zinc ions released when the magnesium-zinc alloy suture nails slowly degrade can continuously exert an anti-tumor effect at the cutting edge, and the cutting edge distance can be appropriately shortened in lung tumor surgery, that is, the distance between the cutting line and the edge of the tumor when cutting lung tissue. The currently recognized cutting edge distance in the world is 2CM, thereby achieving the purpose of retaining as much healthy lung tissue as possible. Finally, the height of the metal nails gradually decreases from the outside to the inside. After cutting the tissue, the metal nail closest to the cutting edge has the lowest height, provides the greatest suturing force, and can fully guarantee the suturing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the cutting wire duct of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the third nail outlet of the utility model;

[0022] Figure 4 It is a schematic diagram of the planar structure of the metal nail three of the present invention.

[0023] Description of main symbols:

[0024] 1. Nail compartment; 2. Cutting wire trough; 3. Metal nail one; 4. Metal nail two; 5. Metal nail three; 6. First nail outlet; 7. Second nail outlet; 8. Third nail outlet. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-4 This embodiment of a magnesium alloy cutting and stapler stapler comprises a stapler 1 having a cutting groove 2 defined on its surface. Metal staples 1 3, 2, 4, and 3 5 are sequentially arranged on either side of the inner wall of the stapler 1. The cutting groove 2 may provide a guide or space for cutting during use of the stapler, allowing for more precise cutting. Metal staples 1 3, 2, 4, and 3 5 are sequentially arranged on either side of the inner wall. This arrangement may be intended to facilitate the ejection of the metal staples in a specific order during the suturing process, achieving tissue closure.

[0028] The surfaces of the metal staples 1 (3) and 2 (4) are made of a magnesium-zinc alloy. Magnesium-zinc alloys may exhibit a certain degree of biocompatibility, allowing them to coexist well with surrounding tissue after implantation, reducing rejection. Furthermore, this alloy may possess suitable strength, effectively penetrating tissue and securing the suture during the suturing process. The magnesium and zinc ions released during the slow degradation of the magnesium-zinc alloy suture staples can exert a sustained anti-tumor effect at the resection margin. This can appropriately shorten the resection margin distance (the distance between the cutting line and the edge of the tumor during lung tumor surgery) during lung tumor surgery. The currently accepted resection margin distance is 2 cm, thereby preserving as much healthy lung tissue as possible.

[0029] The surface of the Metal Staple 35 is made of titanium alloy, which features high strength, low density, and excellent corrosion resistance. In the stapler's chamber, the high strength of titanium alloy allows the Metal Staple 35 to withstand significant pressure and resist deformation or breakage when penetrating thick or tough tissue.

[0030] A first nail outlet 6 is provided on the upper surface of the nail compartment 1, and the first nail outlet 6 is located above the metal nail 3. The first nail outlet 6 is provided on the upper surface of the nail compartment 1 and is located above the metal nail 3. This design enables the metal nail 3 to be accurately pushed out from the first nail outlet 6 when the cutting stapler is triggered, thereby performing a suturing operation on the tissue.

[0031] A second nail outlet 7 is provided on the upper surface of the nail compartment 1, and the second nail outlet 7 is located above the metal nail 2 4. The second nail outlet 7 is provided on the upper surface of the nail compartment 1 and is located above the metal nail 2 4. The principle is similar to that of pushing the metal nail 1 3 out of the first nail outlet 6. When the cutting stapler is working, the metal nail 2 4 can be accurately pushed out from the second nail outlet 7 to suture the tissue.

[0032] A third nail outlet 8 is provided on the upper surface of the nail compartment 1, and the third nail outlet 8 is located above the metal nail 3 5. The third nail outlet 8 is provided on the upper surface of the nail compartment 1 and is located above the metal nail 3 5, so that the metal nail 3 5 can be smoothly pushed out from the third nail outlet 8 when the cutting stapler is working to suture the tissue.

[0033] The implementation principle of a magnesium alloy cutting and suturing device nail cabin in the embodiment of the present application is as follows: according to the part and shape of the tissue to be cut and sutured, the personnel accurately aligns the cutting groove 2 of the nail cabin of the magnesium alloy cutting and suturing device with the tissue area to be cut, ensuring that the position of the nail cabin 1 on the tissue surface is appropriate, laying the foundation for subsequent cutting and suturing operations, and starting the cutting function of the cutting and suturing device. The cutting element cuts the tissue along the cutting groove 2 on the surface of the nail cabin 1. Since the cutting groove 2 provides guidance and space, the cutting operation can be more accurate, reducing unnecessary damage to the surrounding tissue. After the cutting is completed, since the metal nail 3 5 is closest to the cutting edge and has the lowest height, the suturing force provided is the greatest. First, the cutting and suturing device is triggered to push the metal nail 3 5 out from the third nail outlet 8. With the titanium alloy material of the metal nail 3 5, it has the characteristics of high strength and good corrosion resistance, it can effectively penetrate Penetrate the tissue and fix it, fully ensuring the suturing effect, especially the suturing of tissue near the incision edge. Then, operate the cutting stapler to push out the metal staple 2 4 from the second staple outlet 7. The metal staple 2 4 is made of magnesium-zinc alloy, has biocompatibility and appropriate strength, and further sutures the tissue according to its arrangement order, and cooperates with the suturing of the metal staple 3 5 to gradually complete the suturing process of the tissue. Finally, trigger the metal staple 1 3 to be pushed out from the first staple outlet 6. Although the metal staple 1 3 is the highest, the tissue thickness here is thicker than the incision edge, which meets the suturing requirements. The magnesium and zinc ions released when the magnesium-zinc alloy suture staple slowly degrades can continue to play an anti-tumor role at the incision edge. In lung tumor surgery, the incision edge distance can be appropriately shortened, that is, the distance between the cutting line and the edge of the tumor when cutting lung tissue. The currently recognized incision edge distance in the world is 2CM, thereby achieving the purpose of retaining as much healthy lung tissue as possible.

[0034] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A magnesium alloy cutting and stapling device, characterized in that: The invention comprises a nail cabin (1), wherein a cutting line groove (2) is provided on the surface of the nail cabin (1), and metal nail one (3), metal nail two (4) and metal nail three (5) are sequentially provided on both sides of the inner wall of the nail cabin (1).

2. The magnesium alloy cutting and stapler cartridge according to claim 1, characterized in that: The surface material of the metal nail 1 (3) and the metal nail 2 (4) is magnesium-zinc alloy.

3. The magnesium alloy cutting and stapling device cartridge according to claim 1, characterized in that: The surface material of the metal nail three (5) is titanium alloy.

4. The magnesium alloy cutting and stapler cartridge according to claim 1, wherein: The upper surface of the nail cabin (1) is provided with a first nail outlet (6), and the first nail outlet (6) is located above the metal nail (3).

5. The magnesium alloy cutting and stapler stapler cartridge according to claim 1, characterized in that: The upper surface of the nail cabin (1) is provided with a second nail outlet (7), and the second nail outlet (7) is located above the second metal nail (4).

6. The magnesium alloy cutting and stapling device cartridge according to claim 1, characterized in that: The upper surface of the nail chamber (1) is provided with a third nail outlet (8), and the third nail outlet (8) is located above the metal nail three (5).