Surgical suture, surgical needle and surgical forceps therefor

Abstract

The application provides a surgical suture, a surgical needle and surgical forceps, according to the characteristics of the surgical site, the surgical suture mechanism is ingeniously arranged in the clamping part of the forceps body, and the surgical needle is installed in the surgical forceps, and the special surgical suture is used, in use, only the uterine ligament tissue is normally clamped, then the surgical needle is pushed, the surgical suture is driven to pass through the tissue to be sutured, then the surgical needle is reset, but the surgical suture is retained on the other side of the tissue due to the fixing head, so that the suture action is completed; after the suture is completed, the surgical needle can be quickly reset, and the forceps body is not affected to be taken out, the technical scheme of the application has the advantages of simple structure and easy operation, and through clinical experiments, the surgical suture time of doctors is greatly reduced, and the surgical pain of patients is reduced.

Description

A surgical suture, a surgical needle and surgical forceps Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a surgical suture, a surgical needle, and a special surgical forceps using the surgical needle. Background Technology

[0002] In surgical procedures, it is well known that suturing is generally required for invasive surgeries. Currently, some surface and external opening suturing techniques are very mature and can achieve satisfactory results in a relatively short time. However, when performing invasive surgeries on deeper and narrower areas of the body, the limitations of medical equipment often increase the difficulty for the surgeon. A single suture typically takes about 10 minutes, increasing medical risks and patient discomfort. This is especially true in pelvic uterine ligament suspension surgeries, where the lesion is deep and the operating space is narrow, requiring a long time to suture using existing surgical forceps and needles, posing a significant challenge to both doctors and patients. The existing technology has a patent number of 2020218793403, which is entitled "A Surgical Suture Needle and a Surgical Forceps with Suturing Function". It discloses a surgical forceps that can suture quickly. However, the needle is easy to slip off during the process of threading the needle before suturing and lowering the forceps after placing the needle. Moreover, the needle is not easy to remove after suturing is completed. The needle is easy to damage the tissue during the removal process. Therefore, there is an urgent need for a more scientific and practical surgical forceps that addresses the above problems. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides a surgical suture, a surgical needle, and a dedicated surgical forceps. Based on the characteristics of the surgical site, the suturing mechanism is cleverly integrated into the clamping part of the forceps body, and the surgical needle is installed inside the forceps. Using the dedicated surgical suture, during use, simply clamp the uterine ligament tissue as usual, then push the surgical needle to guide the suture through the tissue to be sutured. The needle then returns to its original position, but the suture remains on the other side of the tissue due to the retaining head, thus completing the suturing action. Because the surgical needle can quickly return to its original position after suturing, it does not affect the removal of the forceps body. The technical solution designed in this invention has a simple structure and is easy to operate. Clinical trials have shown that it significantly reduces the surgeon's suturing time and alleviates the patient's surgical pain.

[0004] The technical solution of the present invention: a surgical suture, comprising a suture body and a fixing head with a diameter larger than that of the suture body, the fixing head being disposed at the front end of the suture body, and the fixing head being provided with barbs facing the direction of the suture body.

[0005] In a further optimization of the technical solution of the present invention, the fixing head is a knotting point, an annular protrusion, or a spherical protrusion, and the line body is provided with barbs.

[0006] A surgical needle includes a needle tip, a needle body, and the surgical suture described above, wherein the surgical suture is disposed on the needle body by a fixing head fixed to the needle tip.

[0007] In a further optimization of the technical solution of the present invention, the needle body is made of shape memory alloy.

[0008] In a further optimization of the technical solution of the present invention, a fixing protrusion is provided between the needle tip and the needle body, and the fixing protrusion is used to block the fixing head.

[0009] A surgical forceps includes a first forceps body and a second forceps body that cooperate with each other. The clamping ends of the first forceps body and the second forceps body are provided with a suturing mechanism for mounting the surgical needle described above. The suturing mechanism includes a needle tip receiving cavity disposed in the clamping end of the first forceps body and a needle working cavity disposed in the clamping end of the second forceps body. The opening of the needle tip receiving cavity corresponds to the opening of the needle working cavity in the clamping end of the second forceps body, and the needle working cavity extends through the entire second forceps body. A needle inlet is provided at its gripping end, and the length of the surgical needle is greater than the length of the needle working cavity.

[0010] In a further optimization of the technical solution of the present invention, the front end of the needle working cavity is provided with a receiving cavity for placing the surgical suture fixing head, and the side wall of the fixing head receiving cavity is provided with a suture for the surgical suture to pass through.

[0011] In a further optimization of the technical solution of the present invention, the diameter of the fixing head receiving cavity is larger than the diameter of the fixing protrusion between the needle tip and the needle body on the surgical needle, and the diameter of the needle body working cavity is smaller than the diameter of the fixing protrusion.

[0012] In a further optimization of the technical solution of the present invention, the front section of the needle working cavity is arc-shaped and has the same curvature as the clamping end of the second clamp body; the cross section of the surgical needle is cuboid or triangular, and the curvature of the front section is equal to the curvature of the clamping end of the second clamp body.

[0013] In a further optimization of the technical solution of the present invention, the tail end of the surgical needle is provided with a detachable control handle, and the control handle is detachably connected to the needle body; an elastic mechanism is provided between the control handle and the second clamp body, the elastic mechanism being used to keep the surgical needle completely hidden in the working cavity of the needle body when not in use; a barrier mesh or sponge is fixed at the opening of the needle tip receiving cavity.

[0014] The beneficial effects of the technical solution of this invention:

[0015] 1. For surgical sutures, a fixing head with a diameter larger than the suture body is set at the front end of the suture body, and barbs are set on the fixing head facing the suture body. First, it makes it easy for the surgical needle to be directly passed through the fixing head, avoiding the cumbersome step of passing the suture through the needle hole in the existing technology; second, with the push force of the surgical needle to pass the fixing head of the suture through the tissue, combined with the tension of the surgical suture itself, the barbs expand outward during the repositioning process of the surgical needle, increasing the diameter of the fixing head, so that it stays on the other side of the tissue, thus achieving the suturing effect;

[0016] 2. Regarding surgical needles, the biggest technical advantage of this solution compared to existing technologies is the design of a surgical tool that integrates needle and suture. The tip of the surgical needle can be threaded onto the fixed head of the suture, or it can be manufactured directly as a disposable surgical needle with a surgical suture attached. This needle design allows the needle to be inserted into the tissue and then withdrawn, leaving the suture inside the tissue.

[0017] 3. In conjunction with the aforementioned surgical sutures and needles, a specialized surgical forceps was designed. Based on existing ordinary surgical forceps, by designing interlocking clamping parts at the ends and a needle working chamber inside one of the forceps bodies, it is possible to achieve the effect of suturing tissue while using the clamping function normally. Moreover, it is safe and efficient, and one doctor can perform suturing quickly. The entire process can be completed within 20 seconds, greatly improving surgical suturing efficiency and reducing patient pain. Attached Figure Description

[0018] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0019] Figure 1 is a schematic diagram of the structure of surgical sutures of embodiments 2(b) and 3(a) of the present invention;

[0020] Figure 2 is a schematic diagram of the overall structure of the disposable surgical needle in Embodiment 5 of the present invention;

[0021] Figure 3 is a partial structural schematic diagram of the connection between the needle tip and the needle body of the surgical needle of the present invention;

[0022] Figure 4 is a schematic diagram of the overall structure of the surgical forceps of the present invention;

[0023] Figure 5 is a side view of the fixed head receiving cavity in the second clamp body of the present invention.

[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.

[0025] Labeling explanations: 1-First clamp body; 11-Needle working chamber; 12-Fixing head receiving chamber; 121-Suture; 2-Second clamp body; 21-Needle tip receiving chamber; 3-Needle body; 31-Needle tip; 32-Fixing protrusion; 4-Spring; 5-Control handle; 6-Surgical suture; 61-Spherical fixing head; 63-Circular fixing head; 62-Barb; 64-Tube suture body. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] <Example 1>

[0028] As shown in the figure, a surgical suture of the present invention includes a suture body and a fixing head with a diameter larger than that of the suture body. The fixing head is disposed at the front end of the suture body, and the fixing head is provided with barbs 62 facing the direction of the suture body. Specifically, barbs 62 are provided at least at the front section of the suture body, and the surgical suture is knotted at the location where barbs 62 are provided to form the fixing head.

[0029] <Example 2>

[0030] Based on Example 1, as shown in Figure 1-b, the fixing head can also be arranged in a ring shape. Since its diameter is slightly larger than the suture body, it appears visually as a protruding structure at the front end of the suture body. When the fixing head is designed as a ring shape, a hole with a diameter smaller than the diameter of the surgical needle body 3 is opened in the middle of the fixing head, and barbs 62 with an expansion diameter much larger than the diameter of the fixing head are provided on the outer surface. This design is to increase resistance during retraction. In use, simply pass the surgical needle through the hole at the front end of the surgical suture.

[0031] <Example 3>

[0032] Based on Example 1, as shown in Figure 1-a, the fixing head at the front end of the surgical suture is designed as a ball, and the suture body is designed as a hollow tubular structure. This, combined with the structure of the surgical needle, can be designed as a disposable surgical needle with a suture body. That is, the surgical needle is passed through the tube hole of the surgical suture until the needle tip 31 passes through the ball-shaped protrusion at the front end. In order to ensure that the surgical suture remains at the suture position after the surgical needle is pulled out during the suturing process, barbs 62 are provided on the outer side of the ball-shaped fixing head. In this way, when the surgical needle is pulled out, not only does the lateral diameter of the ball-shaped fixing head increase, but the barbs 62 also open to further ensure that the surgical suture does not follow the surgical needle back to its original position.

[0033] <Example 4>

[0034] Based on embodiments 1-3, a special surgical needle was designed, including a needle tip 31, a needle body 3, and the aforementioned surgical suture. The surgical suture is mounted on the needle body 3 via a fixing head fixed to the needle tip 31, as shown in Figure 3. A fixing protrusion 32 is provided between the needle tip 31 and the needle body 3. The fixing protrusion 32 is used to block the fixing head. Specifically, the side of the protrusion near the needle tip 31 is a stepped protrusion, and the side near the needle body 3 is a buffered inclined structure design. This design can drive the surgical suture to move together when the needle body 3 moves forward, preventing the surgical suture from slipping. During the repositioning process of the surgical needle, the inclined structure can reduce the resistance between the needle body 3 and the tissue, making it easier to pull out the needle body 3.

[0035] Further optimization of the technical solution of the present invention: the needle body 3 is made of shape memory alloy. Due to the characteristics of shape memory alloy, the present invention uses the technical solution disclosed in the prior art by Japanese patent application number JP04250406, that is, by training the bending arc of the surgical needle during use, it is ensured that after it is freed from the constraint of the forceps cavity, it can smoothly enter the corresponding cavity of another forceps.

[0036] <Example 5>

[0037] Based on Example 3, as shown in Figure 2, this example designs a disposable surgical suture needle. The surgical suture needle includes a needle tip 31, a needle body 3, and surgical suture thread sleeved on the needle tip 31 and the needle body 3. A threaded connection structure is provided at the tail end of the needle body 3. When in use, the needle tip 31 of the needle body 3 can be directly inserted into the tissue. When the needle body 3 is pulled out, it will come out, and the surgical suture thread sleeved on the surgical needle will remain in the tissue, achieving the suturing effect.

[0038] <Example 6>

[0039] Based on Embodiment 4, this embodiment invents a surgical forceps with suturing function, including a first forceps body 1 and a second forceps body 2 that cooperate with each other. The clamping ends of the first forceps body 1 and the second forceps body 2 are provided with a suturing mechanism for installing the surgical needle described in Embodiment 4. The suturing mechanism includes a needle tip receiving cavity 21 disposed in the clamping end of the first forceps body 1 and a needle working cavity 11 disposed in the clamping end of the second forceps body 2. The opening of the needle tip receiving cavity 21 corresponds to the opening of the needle working cavity 11 in the clamping end of the second forceps body 2, so that the surgical needle can smoothly enter the needle tip receiving cavity 21 after exiting the needle working cavity 11. The technical solution of this invention is to solve the problem of the needle 3 causing damage to the tissue during the suturing process. To mitigate the risk of scratching, the needle working chamber 11 extends through the entire second clamp body 2, with a needle body 3 inlet at its gripping end. The length of the surgical needle is greater than the length of the needle working chamber 11. During use, when the clamp body grips the tissue to be sutured, the surgical needle with the suture thread is directly inserted through the inlet of the needle working chamber 11. Then, the needle tip 31 exits the second clamp body 2 and enters the needle tip receiving chamber 21 of the first clamp body 1, bringing the surgical suture thread into the needle tip receiving chamber 21 as well. After the surgical needle is withdrawn, the fixing head on the surgical suture thread blocks the tissue on the other side, separating the surgical suture thread from the surgical needle, thus achieving a rapid suturing effect.

[0040] Preferably, when the surgical needle and surgical suture are not a single-use integrated device, i.e., in the case of the surgical suture in Embodiment 2, in order to facilitate the combination of the surgical needle and surgical suture, a receiving cavity for placing the surgical suture fixing head is provided at the front end of the needle working cavity 11, as shown in Figure 5. A suture 121 for the surgical suture to pass through is opened on the side wall of the fixing head receiving cavity 12. When in use, the loop-shaped fixing head of the surgical suture is placed into the fixing head receiving cavity 12 with the suture facing each other. In order to prevent the suture from being passed through by the surgical needle, the suture 121 structure is opened on the side wall of the fixing head receiving cavity 12 to ensure that the suture will not affect the needle tip 31 of the surgical needle to pass through the fixing head preferentially.

[0041] In a further optimization of the technical solution of the present invention, the front section of the needle working cavity 11 is arc-shaped and has the same curvature as the clamping end of the second clamp 2; the cross section of the surgical needle is cuboid or triangular, and the curvature of the front section is equal to the curvature of the clamping end of the second clamp 2.

[0042] <Example 7>

[0043] Based on Embodiment 5, as shown in Figures 2 and 4, the tail end of the surgical needle is provided with a detachable control handle 5. The control handle 5 is detachably connected to the needle body 3. Specifically, the end of the needle body 3 is threaded, and a nut sleeve matching the thread at the end of the needle body 3 is designed on the control handle 5, which facilitates the connection between the control handle 5 and the surgical needle. To facilitate the operation of the surgical needle, an elastic mechanism is provided between the control handle 5 and the second clamping body 2. The elastic mechanism is used to keep the surgical needle completely hidden in the needle body working cavity 11 when not in use. During surgery, after the tissue to be sutured is correctly clamped, only the control handle needs to be pushed. The handle 5, under the action of the spring 4 in the elastic mechanism, can drive the surgical needle to automatically reset, making it more convenient and quick to use. In the surgical forceps with the elastic structure, the surgical needle can be preset inside the forceps during the production of the forceps. Compared with the structure without the elastic structure and the control handle 5, this technical solution designs the fixed head receiving cavity 12 so that the diameter of the fixed head receiving cavity 12 is larger than the diameter of the fixing protrusion 32 between the needle tip 31 and the needle body 3, and the diameter of the needle body working cavity 11 is smaller than the diameter of the fixing protrusion 32. This structure design can ensure that the needle body 3 will not slip out of the needle body working cavity 11 indefinitely during the reset process.

[0044] Furthermore, to ensure that the surgical suture does not revert to its original position after passing through the tissue along with the surgical needle during the suturing process, a barrier mesh or sponge is fixed at the opening of the needle tip receiving cavity 21. In this way, when the needle tip 31 enters the barrier mesh or sponge, the suture can be retained within the structure due to the action of the fixing head on the surgical suture.

[0045] The method of using the technical solution of this invention is as follows: When the surgical forceps has a fixed head receiving cavity 12, the fixed head of the suture is first placed into the fixed head receiving cavity 12 (the fixed head receiving cavity 12 and the fixed head are interference fit), and then the suture is pulled towards the gripping part of the forceps body along with the suture 121. The tissue to be sutured is held with the surgical forceps, and then the surgical needle of this invention is inserted from the entrance of the needle working cavity 11. In this way, the surgical needle will first pass through the annular hole of the surgical suture, and then, carrying the suture, pass through the tissue to be sutured and enter the needle tip receiving cavity 21. When the operator feels the needle tip 31 touch the wall of the needle tip receiving cavity 21, the surgical needle is pulled out. At this time, the suture will remain on the other side of the tissue due to the action of the fixed head. The surgical forceps can then be removed normally to complete the suturing. When using a disposable surgical needle and surgical forceps that integrate needle and suture, the tissue to be sutured is directly clamped with the forceps body, and then the control handle 5 is pushed towards the clamping part and then released to complete the suturing.

[0046] When using the suture forceps of this invention to suture deeper lesions in the human body, the overall time is reduced to less than 20 seconds. Compared with the suturing equipment in the prior art, this greatly shortens the operation time, reduces the patient's pain, and the equipment is safer to use.

[0047] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A surgical forceps, characterized in that, The device includes a first clamp and a second clamp that cooperate to clamp the uterine ligament tissue. The clamping ends of the first and second clamps are equipped with a suturing mechanism for mounting a surgical needle, which sutures the uterine ligament tissue. The surgical needle includes a needle tip, a needle body, and a surgical suture. The surgical suture includes a suture body and a fixing head, and the suture is mounted on the needle body via the fixing head fixed to the needle tip. The suturing mechanism includes a needle tip receiving cavity within the clamping end of the first clamp and a needle body working cavity within the clamping end of the second clamp. The opening of the needle tip receiving cavity corresponds to the opening of the needle body working cavity within the clamping end of the second clamp, and the needle body working cavity extends through the entire second clamp, with a needle inlet at its gripping end. The length of the surgical needle is greater than the length of the needle body working cavity. A fixing head receiving cavity for placing the surgical suture is located at the front end of the needle body working cavity, and a suture suture is formed on the side wall of the fixing head receiving cavity for the surgical suture to pass through.

2. The surgical forceps according to claim 1, characterized in that, The fixing head is located at the front end of the suture body, and the diameter of the fixing head is larger than that of the suture body. The fixing head is formed by knotting the surgical suture, and the fixing head is provided with barbs facing the direction of the suture body.

3. The surgical forceps according to claim 2, characterized in that, The fixing head is a knot, annular protrusion, or spherical protrusion, and the thread is provided with barbs; when the fixing head is a spherical protrusion, the thread is a hollow tubular structure.

4. The surgical forceps according to claim 1, characterized in that, The diameter of the fixed head receiving cavity is larger than the diameter of the fixed protrusion between the needle tip and the needle body on the surgical needle, and the diameter of the needle body working cavity is smaller than the diameter of the fixed protrusion.

5. The surgical forceps according to any one of claims 1-4, characterized in that, The front section of the needle working cavity is arc-shaped and has the same curvature as the clamping end of the second clamp body; the cross section of the surgical needle is cuboid or triangular, and the curvature of the front section is equal to the curvature of the clamping end of the second clamp body.

6. The surgical forceps according to claim 1, characterized in that, The surgical needle is provided with a detachable control handle at its tail end, and the control handle is detachably connected to the needle body; an elastic mechanism is provided between the control handle and the second clamp body, and the elastic mechanism is used to keep the surgical needle completely hidden in the working cavity of the needle body when not in use; a barrier mesh or sponge is fixed at the opening of the needle tip receiving cavity.

7. The surgical forceps according to claim 1, characterized in that, The needle body is made of shape memory alloy.

8. The surgical forceps according to claim 1, characterized in that, A fixing protrusion is provided between the needle tip and the needle body, and the fixing protrusion is used to block the fixing head.

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