A medical suture needle with a hidden knot structure

Abstract

This utility model discloses a medical suture needle with a hidden knot structure, relating to the field of medical devices. It includes a needle body with at least one pointed puncture portion and a needle shaft that smoothly transitions to the pointed end. The puncture portion is used for puncture, and the needle shaft has a connecting post for connecting to a suture, with the connecting post located inside the needle shaft. This utility model effectively hides the suture and knot, reducing damage to human tissue and resistance to needle insertion caused by the suture and knot during suturing. Furthermore, it is reusable, effectively reducing medical costs.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a medical suture needle with a hidden knot structure. Background Technology

[0002] Surgical procedures typically require incision suturing, which necessitates the use of suture needles. These needles usually have sutures attached to their ends. Current suture needles use a suture-attached design at the end. The existing methods of connecting suture needles and sutures are as follows: Firstly, the needle has a thread hole at the end. After the suture passes through the thread hole, it is knotted and tied to the needle. The disadvantage of this is that the suture that goes around the needle makes the needle twice the diameter of the suture. It also makes it easy for the suture to get knotted on the needle bar. This not only makes the needle thicker, but also increases the resistance when suturing and threading the needle. The thickened needle and the rough knot will cause additional damage to the tissue through which the suture passes.

[0003] Secondly, some manufacturers use methods such as clamping the suture end to the needle tail during needle production. For example, Chinese patent CN2329326Y discloses a surgical suture needle. While this effectively solves the problem of the suture being knotted and tied to the needle after passing through the thread hole, it also introduces new problems. This means that such suture needles can only be used once and cannot be re-threaded, greatly increasing medical costs. At the same time, the clamping force of the suture may be insufficient, leading to suture slippage when suturing human tissue.

[0004] Therefore, improvements to the suture needle are needed to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a medical suture needle with a hidden knot structure to address the aforementioned problems. This effectively hides the suture and knot, reduces the damage to the human tissue caused by the suture and knot during needle threading, and reduces the resistance to needle threading. Furthermore, it is reusable, effectively reducing medical costs.

[0006] The technical solution adopted by this utility model is as follows: A medical suture needle with a hidden knot structure includes a needle body, the needle body having at least one puncture part with a tip and a needle shaft that smoothly transitions to the tip, the tip serving as the puncture part for puncture, and the needle shaft having a connecting post for connecting with a suture, and the connecting post being located inside the needle shaft.

[0007] Furthermore, the number of puncture sites is one or two.

[0008] Furthermore, a through hole is provided on the needle bar, and a connecting post is disposed in the through hole.

[0009] Furthermore, the axis of the connecting post is perpendicular to the axis of the needle bar.

[0010] Furthermore, the side wall of the needle bar has a wiring groove, one end of which communicates with a through hole, and the length direction of the wiring groove is along the axis of the needle bar.

[0011] Furthermore, if there is only one puncture site, a threading hole is provided on the needle bar. One end of the threading hole is connected to the through hole, and the other end passes through the end face of the needle bar away from the puncture site.

[0012] Furthermore, if there are two puncture sites, the through hole is located at the midpoint of the needle shaft.

[0013] Furthermore, the side wall of the needle bar has a wiring groove, and the connecting post is fixed in the wiring groove.

[0014] Furthermore, the needle also includes a suture thread, one end of which is connected to a connecting post.

[0015] Furthermore, there is a rounded corner at the intersection of the top and bottom surfaces of the needle.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The suture needle disclosed in this utility model has a connecting post on the needle bar, the suture thread is connected to the connecting post, and the connecting post is located inside the needle bar. This allows the knot of the suture thread to be located inside the needle bar, thereby solving the problem that the suture thread and / or knot on the needle bar further thickens the suture needle, thus increasing the resistance when threading the needle. It also avoids additional damage to the tissue through which the suture thread passes by the suture thread and the rough knot. Furthermore, this suture needle can be reused, which can effectively reduce medical costs. Attached Figure Description

[0017] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the first structure of the present invention when it has one puncture part; Figure 2 This is a schematic diagram of the second structure of the present invention when it has one puncture part; Figure 3 This is a schematic diagram of the structure of the present invention when it has two puncture sites; Figure 4 This is a cross-sectional view of the connecting column installed in the through hole in this utility model; Figure 5 This is a cross-sectional view of the connecting column installed in the wiring groove in this utility model. Figure 6 This is a schematic diagram of the structure of the present invention, in which the through hole is elliptical. In the diagram, the markings are: 11-needle body; 12-puncture section; 13-through hole; 14-connecting post; 15-wiring groove; 16-needle shaft; 17-threading hole. Detailed Implementation

[0018] In the description of this specification, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" appear to 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 is in use, they are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0019] Furthermore, the use of terms such as "horizontal" or "vertical" in this specification does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of this specification, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, a link can be a fixed link, a detachable link, or an integral link; it can be a mechanical link or an electrical link; it can be a direct link or an indirect link through an intermediate medium; it can be a connection within two components.

[0021] Example 1 like Figures 1-6 As shown, a medical suture needle with a hidden knot structure includes a needle body 11, the needle body 11 having at least one puncture portion with a tip and a needle shaft 16 that smoothly transitions to the tip. The tip serves as the puncture portion 12 for puncture, and the needle shaft 16 has a connecting post 14 for connecting with a suture, and the connecting post 14 is located inside the needle shaft 16.

[0022] The suture needle disclosed in this embodiment, because a connecting post 14 is provided on the needle bar 16, the suture thread is connected to the connecting post 14, and the connecting post 14 is located inside the needle bar 16, can make the knot of the suture thread located inside the needle bar 16. This solves the problem that the suture thread and / or knot on the needle bar 16 further thickens the suture needle and increases the resistance when suturing and threading the needle. At the same time, it avoids the additional damage to the tissue through which the suture thread passes caused by the rough knot. Moreover, this suture needle can be reused, effectively reducing medical costs.

[0023] Furthermore, the smooth transition between the puncture section 12 and the needle shaft 16 effectively prevents scratching the patient at the transition point between the puncture section 12 and the needle shaft 16, thus avoiding secondary injury.

[0024] Example 2 Based on Example 1, further feasible implementation methods are proposed.

[0025] In one feasible implementation, the number of puncture portions 12 is one or two.

[0026] Specifically, if there is only one puncture site 12, its usage is well-known and will not be described in detail here. For example... Figure 3 As shown, if there are two puncture sections 12, located at both ends of the needle body 11, the middle part of the needle body 11 is the needle shaft 16. For ease of explanation, the two puncture sections 12 are referred to as puncture section a and puncture section b, respectively. The specific steps are as follows: A0: Preparation before sewing; including assembling the suture, that is, connecting the suture to the connecting part. If the needle has a suture, this step can be omitted. A1: Insert the suture needle with the suture thread into the surgical area, adjust the angle of the suture needle, insert the needle holder a into the surgical area and clamp the needle bar 16 near the puncture point a; A2: Rotate the lever of the needle holder a to readjust the needle insertion angle of the puncture section b until the needle insertion angle is at the appropriate angle; A3: The needle holder a clamps the suture needle for suturing. After the puncture part b passes through the tissue at the suture site, the needle holder b clamps the needle bar 16 near the puncture part b, and then the needle holder a is released and the suture needle is pulled out. A4: Adjust the needle insertion angle of puncture part a, and use needle holder b to clamp the suture needle for puncture and suturing; after puncture part a passes through the tissue at the suturing site, use needle holder a to clamp the needle bar 16 near puncture part a, and then release the needle holder b and pull out the suture needle. A5: Repeat steps A2-A4 and continue suturing until the incision is completely closed.

[0027] Therefore, when the suture needle has two puncture parts 12, during suturing, after the needle holder b clamps the front part of the needle body 11 and pulls out the suture needle, the needle tip does not need to turn around, nor does the entire suture needle need to be moved back. During the next suturing puncture, there is no need for the needle holder a to clamp it again for puncture. That is, when performing step S3, the needle holder b can clamp the suture needle and directly perform the next suturing puncture. There are fewer operation steps, the operation is simpler, and the suturing efficiency and safety are higher.

[0028] It should be noted that, as Figure 3As shown, the suture needle with two puncture sections 12 can be used in conjunction with the applicant's application filed on the same day for "A surgical needle holder with two clamping mechanisms that can alternately clamp the suture needle" to complete the suturing of the incision tissue.

[0029] In one feasible implementation, the needle body 11 can be either "straight" or "curved", and the specific shape can be determined according to the suturing incision and the needle holding device used in conjunction with it. For example, when used in conjunction with the "A surgical needle holding device with two clamping mechanisms that can alternately clamp suture needles" applied for by the applicant on the same day, the needle body 11 can be either "straight" or "curved".

[0030] Example 3 Based on any one of the implementation methods in Examples 1-2, a further feasible specific implementation method is proposed.

[0031] One feasible implementation method is, for example Figures 1-4 , Figure 6 As shown, the needle bar 16 has a through hole 13, and the connecting post 14 is disposed in the through hole 13. That is, when medical personnel install sutures, they can insert one end of the suture into the through hole 13 and around the connecting post 14, and then pass it out from the through hole 13 to tie a knot in the suture, so that one end of the suture is connected to the connecting post 14, thereby connecting the suture to the connecting post 14. The knot of the suture is located in the through hole 13, thus achieving the goal of the present invention.

[0032] Furthermore, the axis of the connecting post 14 is perpendicular to the axis of the needle bar 16. This arrangement helps to reduce the volume of the through hole 13, making it easier to tie the suture to the connecting post 14, and ensuring that the length direction of the suture at the knot is consistent with the axial direction of the needle body 11 to facilitate hiding the knot; furthermore, as Figure 4 As shown, the connecting post 14 can be positioned biased towards one side of the through hole 13 to provide more space for the knot.

[0033] like Figure 6 As shown, considering the actual needs of the surgery, and given the limitation that the diameter of the needle bar 16 should not be too large, the advantage of the needle bar 16 having sufficient length is fully utilized. The through hole 13 on the needle bar 16 can be elliptical or rectangular, and the major axis or length direction of the through hole 13 is parallel to the axis of the needle bar 16, thereby increasing the volume of the through hole 13 to facilitate the accommodation of the suture knot. The connecting post 14 can also be flat, that is, the width of the surface along the axis of the needle bar 16 is greater than the vertical surface of the axis of the needle bar 16. This allows the connecting post 14 to withstand greater tensile force and also saves more space for accommodating the suture knot.

[0034] Furthermore, the needle bar 16 has a through hole 13, and the side wall of the needle bar 16 has a wiring groove 15. One end of the wiring groove 15 is connected to the through hole 13, and the length direction of the wiring groove 15 is along the axis of the needle bar 16, so that when the needle body 11 passes through the human tissue at the incision site, the suture can be located in the wiring groove 15, avoiding the suture being on the surface of the needle bar 16 and increasing the diameter of the needle bar 16, thus further achieving the technical effect to be achieved by this utility model. Furthermore, the wiring groove 15 can penetrate the needle bar 16 or not penetrate the needle bar 16. In the case where it does not penetrate the needle bar 16, it is preferable when the suture can be compressed or the diameter is very small.

[0035] Furthermore, such as Figure 6 As shown, the through hole 13 can be elliptical, with its major axis aligned with the axis of the needle body 11 and the length direction of the wiring groove 15, so that the suture can adaptively enter the wiring groove 15 when the needle body 11 passes through the human tissue at the incision site.

[0036] It should be noted that the through hole 13 and wiring groove 15 provided on the needle bar 16 described above can be applied to needle bodies 11 with one or two puncture sections 12.

[0037] Of course, another implementation method is as follows.

[0038] like Figure 2 As shown, if there is only one puncture part 12, a threading hole 17 is provided on the needle bar 16. One end of the threading hole 17 is connected to the through hole 13, and the other end passes through the end face of the needle bar 16 away from the puncture part 12. That is, it is feasible that the axis of the threading hole 17 is collinear with the axis of the needle bar 16, and the threading hole 17 passes through the needle bar 16 from the through hole 13. When connecting sutures, medical personnel can pass the suture through the threading hole 17 and connect it to the connecting post 14 in the through hole 13, so as to hide both the knot and the suture inside the needle bar 16.

[0039] If there are two puncture parts 12, the through hole 13 is located at the midpoint of the needle body 11, so that the distance from the puncture parts 12 at both ends of the needle body 11 to the suture connection position is equal, ensuring that the puncture parameters are basically the same when puncturing using both ends.

[0040] Example 4 like Figure 5As shown, in this embodiment, the difference from that disclosed in Embodiment 3 lies in the installation position of the connecting post 14, that is, no through hole 13 is provided, only a wiring groove 15 is provided; specifically, the side wall of the needle bar 16 has a wiring groove 15, the connecting post 14 is fixed in the wiring groove 15, and the knot of the suture thread and the suture thread itself can be located in the wiring groove 15, which can also realize that the connecting post 14 is located inside the needle bar 16, and further realize that the suture thread and the knot are located inside the needle bar 16, thereby effectively solving the technical problem that this utility model needs to solve. Preferably, this technical measure is applicable to suture needles with larger diameters.

[0041] It should be noted that the solution of only setting the wiring groove 15 can also be applied to needles 11 with one or two puncture sections 12.

[0042] Example 5 This embodiment proposes a further feasible specific implementation method based on any one of the implementation methods in Embodiments 1-4.

[0043] In one feasible specific implementation, the suture thread can be produced in conjunction with the suture needle, that is, the suture needle also includes the suture thread, and one end of the suture thread is connected to the connecting post 14.

[0044] In one feasible specific implementation, for all the above implementations, there is a rounded corner at the intersection of the surface and the suture needle to prevent the common edge between the surfaces from scratching the human tissue at the incision site.

[0045] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A medical suture needle having a hidden wire knot structure, characterized by: The needle body (11) has at least one piercing part (12) with a tip for piercing and a needle shaft (16) smoothly transitioning from the tip, the needle shaft (16) has a connecting column (14) for connecting with a suture, and the connecting column (14) is located inside the needle shaft (16); a through hole (13) is formed in the needle shaft (16), and the connecting column (14) is arranged in the through hole (13).

2. The medical suturing needle of claim 1, wherein: The number of the piercing parts (12) is one or two.

3. The medical suturing needle of claim 1, wherein: The axis of the connecting column (14) is perpendicular to the axis of the needle shaft (16).

4. The medical suturing needle of claim 1, wherein: The side wall of the needle shaft (16) has a wiring groove (15), one end of the wiring groove (15) communicates with the through hole (13), and the length direction of the wiring groove (15) is along the axis direction of the needle shaft (16).

5. The medical suturing needle of claim 1 wherein: If the number of the piercing parts (12) is one, a threading hole (17) is arranged on the needle shaft (16), one end of the threading hole (17) communicates with the through hole (13), and the other end penetrates through the end face of the needle shaft (16) away from the piercing part (12).

6. The medical suturing needle of claim 1, wherein: If the number of the piercing parts (12) is two, the through hole (13) is located at the midpoint of the needle body (11).

7. The medical suturing needle of claim 1, wherein: The side wall of the needle shaft (16) has a wiring groove (15), and the connecting column (14) is fixed in the wiring groove (15).

8. The medical suturing needle according to any one of claims 1-7, wherein: The suture needle also comprises a suture, one end of the suture is connected with the connecting column (14).

9. The medical needle according to any one of claims 1-7, wherein: There is a round corner at the position where the suture needle intersects with the upper surface.

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