Lateral penetration type medical operation suture needle

Abstract

The utility model discloses a side penetrating type medical operation suture needle which comprises a needle body, the needle body is of a half arc structure, one end of the needle body is a needle tip, the other end of the needle body is a needle tail, a needle hole is formed in the needle body close to the needle tail, a threading groove is formed in one side of the needle hole, and the gap of the threading groove is larger than the diameter of a suture line. Arc-shaped protrusions are formed on the inner walls of the needle holes in the two sides of the threading groove, so that the edge of the threading groove cannot draw and damage tissue and gloves of an operator in the surgical suture process, and the situation that a threaded suture line gets close to the threading groove and is disengaged is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, especially a medical suture needle used in surgical operation. BACKGROUND

[0002] In the field of medicine today, suture needles, as one of the most common suture tools in surgical operations, bear the key function of connecting and repairing patient tissues. There are various types of medical suture needles on the market, mainly including standard threading type, pre-threading type, and a small number of new type of threading-free design. The existing suture needle structure is mostly a small hole structure with a threading hole at the end of the needle body, and the suture thread needs to be threaded into the hole through a threading device or manually. Although such designs have been widely used, there are still some deficiencies in operation convenience and surgical efficiency.

[0003] 1. Pain points of existing threading type suture needles:

[0004] Difficulty in threading: the suture needle hole is usually very small, especially when using thin suture threads, the manual threading operation requires high precision, which requires high skill and stability of the operating surgeon. Especially in some emergency surgeries, manual threading operation will waste valuable time.

[0005] Increased operation time: the difficulty in threading directly affects the efficiency of the operation, especially in surgical scenarios that require frequent replacement of suture threads, the preoperative preparation and repeated threading during operation take a long time, affecting the overall operation process.

[0006] Affecting training effectiveness: threading is one of the skills that medical novices must master, but due to the difficulty of threading operation, it increases the learning burden and the probability of operation failure of medical students during skill training.

[0007] 2. Status and deficiencies of threading-free suture needles:

[0008] Application of threading-free design: In recent years, in order to improve the threading efficiency and reduce the operation time, some threading-free or automatic threading auxiliary suture needle designs have gradually appeared on the market. Usually through groove, side hole and other structures to realize the convenience of threading. But the complexity of the structure of these threading-free needles increases the production cost, and some designs are prone to suture thread slipping in actual surgical process, affecting the stability of suture.

[0009] Limited clinical applicability: Some threading-free needles have poor applicability to different suture threads due to their complex structure in actual operation, and have an impact on the mechanical structure of the needle body, which is prone to deformation or even breakage under excessive tension, limiting the promotion and application in clinical surgery.

[0010] 3. Challenges to surgical effectiveness and safety

[0011] Secondary trauma during surgery: Current suture needles are mostly designed with standard round holes for the suture thread, requiring tension to hold the suture in place after insertion. However, this tension can easily cause the needle to shift within the tissue, increasing the risk of secondary trauma to the patient's tissues. Traditional suture needles may also damage the gloves of medical staff during surgery, posing a safety hazard.

[0012] Material corrosion resistance and safety: Most medical suture needles are made of stainless steel or titanium alloy, but due to the limitations of the needle's structure and shape, they may rust or break during surgery, thus affecting the safety of the surgery.

[0013] Therefore, there is an urgent need for surgical sutures that can reduce the difficulty of threading, shorten surgical time, and minimize secondary trauma to patients. At the same time, materials with greater flexibility and corrosion resistance are also needed to ensure the suitability and safety of the sutures in different tissue environments. Utility Model Content

[0014] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a side-penetrating medical surgical suture needle, which simplifies the suture insertion process, improves the convenience of use for medical staff, reduces preoperative and intraoperative preparation time, and ultimately improves surgical outcomes and clinical application level.

[0015] The objective of this utility model is achieved through the following technical solution:

[0016] A side-penetrating medical surgical suture needle includes a needle body with a half-circular arc structure. One end of the needle body is a needle tip, and the other end is a needle tail. A needle hole is provided on the needle body near the needle tail. A suture groove is provided on one side of the needle hole. The gap of the suture groove is larger than the diameter of the suture thread. The inner walls of the needle holes on both sides of the suture groove have arc-shaped protrusions to prevent the edge of the suture groove from pulling and damaging the tissue and the surgeon's glove during surgical suturing, and to prevent the inserted suture thread from coming out near the suture groove.

[0017] Furthermore, the needle hole walls on both sides of the threading groove can undergo elastic deformation, so that the suture can smoothly enter the sides of the threading groove without slipping out.

[0018] Furthermore, the arc-shaped protrusions are processed on the inner walls of the needle holes on both sides of the threading groove by ion beam etching, and the precision can be controlled to ensure that the depth and curvature of the threading groove meet the suturing requirements.

[0019] Furthermore, the arc-shaped protrusions are processed on the inner walls of the pinholes on both sides of the suture groove using laser micro-welding technology to ensure the structural integrity, smoothness, and surgical safety of the arc-shaped protrusions.

[0020] Further, the needle hole wall on both sides of the threading groove is coated with a nano coating to improve wear resistance and increase friction, enhancing the clamping effect on the suture.

[0021] Further, it is made of stainless steel or titanium alloy material and designed with a plating coating to be suitable for people allergic to metal.

[0022] Further, the inner wall of the needle hole is provided with a plurality of micropore support structures, which utilize the friction provided by the support micropores to ensure that the suture does not slip off easily.

[0023] Further, the surgical needle is composed of a detachable needle tip module and a needle tail module, and the needle tail module includes a plurality of threading grooves and needle holes of different sizes to meet various surgical needs.

[0024] Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

[0025] 1. Simplified threading operation: By setting the side threading structure of the threading groove, the suture can enter the needle hole under the action of a small external force, greatly simplifying the threading process, reducing the time and difficulty of threading, and significantly improving the surgical efficiency, especially in frequent suture replacement surgeries.

[0026] 2. Improved surgical efficiency: The threading difficulty of traditional needles often increases the operation time, while the side threading design of the utility model reduces the time for needle and thread preparation by medical staff during surgery. Clinical tests show that about 3-4 seconds can be saved for each threading, which significantly improves the overall efficiency of emergency or high-intensity surgeries and reduces the workload of medical staff.

[0027] 3. Reduce the risk of secondary trauma: By providing a circular arc protrusion on both sides of the threading groove, the suture is prevented from slipping during the suturing process, and the risk of damage to the patient's tissue and the surgeon's gloves is also reduced. The edge design of the circular arc avoids the tearing of the tissue caused by the sharp edge, ensuring the safety of the surgical process and reducing the probability of secondary trauma to the patient.

[0028] 4. Improve the stability and service life of the needle: The use of nano coating and micropore support structure makes the suture more stable in the threading groove and less likely to slip. At the same time, the nano coating can also be selectively covered on the entire needle body. This full coverage helps to improve the corrosion resistance and wear resistance of the needle body in humid, blood contact and other environments, and maintains good mechanical properties even in humid, blood contact and other environments, thereby prolonging the service life of the needle.

[0029] 5. Adapt to multiple surgical needs: the detachable needle tail module design provides multiple specifications of threading slots and needle holes, which can adapt to the needs of different sizes of sutures, and has high flexibility. This design enables the utility model to cover various types of surgical operations, further expanding its clinical application range and enhancing its practicality.

[0030] 6. High material compatibility: the suture needle material of the utility model includes stainless steel and titanium alloy, and is supplemented by a plating film design suitable for metal allergic patients, ensuring the safety and applicability of the product in clinical practice and adapting to the needs of a wide range of patient populations.

[0031] 7. Advanced manufacturing process: the threading slot and the circular-arc-shaped protrusion are processed by ion beam etching and laser micro-welding technology, which not only ensures the precision and firmness of the structure, but also reduces the overall manufacturing cost. The advanced manufacturing process ensures the safety and stability of the suture needle while having mass production, which is conducive to product promotion and the improvement of market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic diagram of the utility model surgical suture needle body structure.

[0033] Figure 2 is a schematic diagram of the structure of the surgical suture needle from the perspective of the top view

[0034] Reference signs: 1-needle body, 2-needle tip, 3-needle tail, 4-needle hole, 5-threading slot, 6-circular-arc-shaped protrusion DETAILED DESCRIPTION

[0035] The utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0036] As shown in Figure 1 and Figure 2 , the utility model provides a kind of side-through type medical surgical suture needle, including needle body 1, needle body 1 is half circular arc structure, its diameter is 1mm in this embodiment;The one end of needle body 1 is needle tip 2, the other end is needle tail 3, the straight line distance of needle tip 2 to needle tail 3 is 24mm;Needle hole 4 is equipped on needle body 1 close to needle tail 3, one side of needle hole 4 is equipped with threading slot 5, the gap of threading slot 5 is greater than suture diameter;The inner wall of needle hole on both sides of threading slot is formed with circular-arc-shaped protrusion 6, so that threading slot edge will not pull and damage tissue and surgeon glove during surgical suturing, and prevent suture that has been threaded from being close to threading slot and coming out.

[0037] Preferably, the needle hole wall on both sides of threading slot 5 can be elastically deformed, so that the suture can be clamped into the threading slot on both sides by threading slot, without slipping.

[0038] Preferably, the arc-shaped protrusion 6 is processed on the inner wall of the needle hole on both sides of the threading groove 5 by ion beam etching, and the precision can be controlled to ensure that the depth and arc of the threading groove meet the suturing requirements. This technology can achieve complex structures with fine diameters, and is suitable for fine components with diameters of 1 mm or less.

[0039] Preferably, the arc-shaped protrusion 6 can also be processed on the inner wall of the needle hole on both sides of the threading groove 5 by laser micro-welding technology to ensure that the structure of the arc-shaped protrusion 6 is firm, smooth, and safe for surgery.

[0040] Preferably, the inner wall of the needle hole on both sides of the threading groove 5 is coated with a nano coating, which can increase the surface friction to provide a slight resistance to the suture thread when passing through the threading groove area, thereby achieving a certain "locking" effect without the need for significant structural changes to improve wear resistance and increase friction to enhance the clamping effect on the suture thread. The nano coating in this embodiment is a titanium nitride coating, which not only improves the wear resistance of the needle, but also enhances the clamping effect of the suture thread on the threading groove, achieving a simple and firm "locking" function. In addition, the nano coating can also be selectively applied to the entire needle body, and this full coverage helps to improve the corrosion resistance and wear resistance of the needle body in humid and blood contact environments, to adapt to more complex surgical environments.

[0041] Preferably, the needle body of the present embodiment is made of stainless steel or nickel-titanium alloy material, and a suture needle made of shape memory alloy (such as NiTi nickel-titanium alloy) can be considered. This material can restore its original shape after slight bending, and can add a small protrusion to the groove, which can automatically "clamp" the thread after threading through the memory alloy. In the case of a very small groove, the shape memory feature can ensure that the suture thread is gently clamped after passing through, increasing the firmness without affecting the smoothness of threading.

[0042] Preferably, the entire needle body of the present embodiment can be designed with a plating coating, which is mainly used to solve the problem of metal allergy. A plating material with higher biocompatibility (such as titanium alloy or ceramic material) is usually selected. The plating layer can be applied to the surface of the needle body, especially the parts that will be in contact with the patient, to prevent possible metal allergy reactions. The plating coating and the aforementioned nano coating can coexist, and the plating process can be performed first to ensure allergy resistance, and then the nano coating can be added to the entire needle body or locally (such as the threading groove). This layered coating technology is already mature. By isolating the metal with a plating layer and adding a local nano coating, the safety of patients with allergies can be improved, and the wear resistance of the threading groove can also be improved.

[0043] Preferably, the inner wall of the needle hole is provided with a plurality of micro-pore support structures, which provide friction to ensure that the suture thread is not easily slipped. This design can achieve a "thread clamping" function without affecting the small size of the needle, meeting the needs of small-sized medical devices.

[0044] Preferably, the surgical suture needle is composed of a detachably connected needle tip module and a needle tail module, and the needle tail module includes a plurality of threading grooves and needle holes of different sizes to meet various surgical requirements.

[0045] Specifically, 30 students of clinical medicine department are randomly selected to compare the threading time of the prior art surgical suture needle and the surgical suture needle of the utility model before and after the threading, and the results show that the threading time of the surgical suture needle of the utility model is obviously shorter than the threading time of the prior art medical suture needle, and the average time is shortened by 3-4 seconds. The students also indicate that the improvement is more convenient and time-saving.

[0046] In summary, the utility model further facilitates the threading process and saves the time before and during the operation, can achieve the best treatment effect as much as possible, and the curved design and the arc-shaped protrusion of the needle body are used to prevent the needle thread from falling off and cause secondary trauma to the patient. The curved parts are subjected to passivation treatment, so as to achieve the effect of not causing harm to the human body tissue.

[0047] The utility model is not limited to the above-described embodiments. The above description of the specific embodiments is intended to describe and illustrate the technical solutions of the utility model, and the above-described specific embodiments are merely illustrative and not restrictive. Without departing from the purpose of the utility model and the scope of the claims, those skilled in the art can make many forms of specific changes under the inspiration of the utility model, and these all belong to the protection scope of the utility model.

Claims

1. A side-loading medical surgical suture needle comprising a needle body, characterized in that, The needle body is in a half circular arc structure, one end of the needle body is a needle tip, the other end is a needle tail, a needle hole is arranged on the needle body close to the needle tail, a threading groove is arranged on one side of the needle hole, and the gap of the threading groove is larger than the diameter of the suture.

2. The medical surgical side-cutting needle according to claim 1, wherein The inner wall of the needle hole on both sides of the threading groove is formed with a circular arc protrusion, so that the edge of the threading groove does not pull and damage the tissue and the surgeon's gloves during the surgical suturing process, and prevents the suture that has been threaded from coming out of the threading groove.

3. The medical surgical side-cutting needle according to claim 1, wherein The needle hole wall on both sides of the threading groove can be elastically deformed, so that the suture can be clamped into the threading groove on both sides by the force of the threading groove without slipping.

4. The medical surgical side-cutting needle according to claim 1, wherein The circular arc protrusion is processed on the inner wall of the needle hole on both sides of the threading groove by ion beam etching, and the precision can be controlled to ensure that the depth and arc of the threading groove meet the suturing requirements.

5. The medical surgical side-cutting needle according to claim 1, wherein The circular arc protrusion is processed on the inner wall of the needle hole on both sides of the threading groove by laser micro welding technology to ensure that the structure of the circular arc protrusion is firm, smooth and safe for surgery.

6. The medical surgical side-cutting needle according to claim 1, wherein The needle hole wall on both sides of the threading groove is coated with a nano coating to improve wear resistance, increase friction and enhance the clamping effect of the suture; the nano coating is a titanium nitride coating.

7. The medical surgical side-cutting needle according to claim 1, wherein Made of stainless steel or titanium alloy material and designed with a plated coating to be suitable for people allergic to metal.

8. The medical surgical side-cutting needle according to claim 1, wherein The inner wall of the needle hole is provided with a plurality of micropore support structures, which utilize the friction provided by the support micropores to ensure that the suture does not easily slip. The surgical needle is composed of a detachable needle tip module and a needle tail module, and the needle tail module includes a plurality of threading grooves and needle holes of different sizes to meet various surgical needs.

Images