Suture needle for deep suture

Abstract

The invention belongs to the technical field of medical instruments, and discloses a suture needle for deep suture. The needle comprises a needle handle capable of being held by hand and a slender and reversely-bent needle point, and the needle point is provided with at least one thread hole or groove allowing a suture to penetrate through. A protective sleeve capable of axially moving in the needle tip is arranged outside the needle tip and is connected with the needle tip through an elastic component; the needle handle is provided with a limiting assembly capable of moving in the axial direction of the needle handle. The device is simple in structure, suitable for various sutures, low in cost and capable of being conveniently cleaned and sterilized for repeated use; meanwhile, operation is easy, training is not needed, the needle tip orientation can be visually controlled through the needle handle, suture can be accurately completed with one hand, and internal tissue is prevented from being accidentally injured; the general use is high, and the suture needle can be easily placed into a small operation hole and can be used for deep tissue suture which is difficult to complete by various common suture needles.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a suture needle used for deep suture. Background Art

[0002] As surgical techniques develop towards minimally invasive and rapid procedures, laparoscopic surgery has become the mainstream of surgical procedures. One of the key steps in laparoscopic surgery is to safely, properly and quickly suture and close the operating hole. For larger operating holes, the innermost fascia must be properly sutured to avoid complications such as iatrogenic hernia, wound leakage, and wound dehiscence.

[0003] Existing fascia closure devices have a complex structure, which not only makes the operation process cumbersome but also has high manufacturing costs. Due to structural and material limitations, they cannot be cleaned and sterilized for reuse. Due to their large diameter, they cannot be applied to smaller operating holes, and therefore have not been widely used.

[0004] Therefore, currently larger operating holes are still closed in the traditional way, that is, using a conventional needle holder to clamp an arc-shaped suture needle and insert it into the operating hole for suturing. Sometimes, it is necessary to increase the use of small suture needles, and there are risks of accidentally injuring internal tissues, losing suture needles, and failing to suture fascia during the suturing process. For smaller operating holes that cannot be sutured, deep suturing is abandoned to avoid accidentally injuring internal tissues. Summary of the invention

[0005] In order to solve the above problems in the prior art, the present invention aims to provide a suture needle for deep suturing.

[0006] The technical solution adopted by the present invention is: A suture needle for deep suture, comprising a needle handle that can be held by hand, and a slender and reversely curved needle tip, wherein the needle tip has at least one thread hole or groove for a suture to pass through; It is further preferred that the needle tip end section is parallel to the needle handle; It is further preferred that the needle tip is not parallel to the needle handle, and the needle tip has an arc, convex in a direction opposite to the direction of the needle handle; It is further preferred that the width of the groove opening in the axial direction of the needle tip is smaller than the inside of the groove; It is further preferred that the groove has an elastic tongue-shaped component along the axial direction of the needle tip, the tongue-shaped component is close to the opening side of the groove wall, and the end of the tongue-shaped component is tilted toward the inside of the groove; It is further preferred that the needle tip has a protective sleeve that can move axially on the needle tip, and the protective sleeve is connected to the needle tip by an elastic component; More preferably, the needle handle has a limiting component movable along the axial direction of the needle handle.

[0007] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0008] The beneficial effects of the present invention are: The invention has a simple structure, low cost and can be easily cleaned and sterilized for repeated use. The invention is easy to operate and does not require training. The direction of the needle tip can be intuitively controlled by the needle handle. It can be used with one hand to accurately complete suturing and avoid accidental injury to internal tissues. The present invention is suitable for various types of sutures, reduces the use cost, and reduces the economic burden on patients; The invention has a narrow cross section and can be easily placed in a smaller operating hole; The present invention has a wide range of applications, not limited to fascia closure of operating holes, and can be used for deep tissue suturing that is difficult to complete with various common suturing needles; BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the suture needle provided in the first embodiment of the present invention when the needle tip is exposed; Figure 2 yes Figure 1 A cross-sectional view of the suture needle shown; Figure 3 yes Figure 1 The schematic diagram of the structure of the suture needle when the needle tip is covered; Figure 4 yes Figure 3 A cross-sectional view of the suture needle shown; Figure 5 This is a schematic diagram of the structure of the suture needle provided in the second embodiment of the present invention when the needle tip is exposed; Figure 6 This is a schematic diagram of the structure of the suture needle provided in the third embodiment of the present invention when the needle tip is exposed; Figure 7 It is a schematic diagram of the structure of a suture needle provided in Embodiment 4 of the present invention.

[0010] Description of the numbers in the figure: Needle tip 1, groove 11, thread hole 12, tongue-shaped component 13, protective cover 14, elastic component 15; Bending part 2; Needle handle 3, stopper 31. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention are described clearly and completely; obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0012] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one side", "the other side", etc. and their order of appearance are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "having", "including", "connected", "active", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0014] See also Figures 1 to 4 , this embodiment provides a suture needle for deep suturing.

[0015] The needle tip 1 comprises a needle handle 3 that can be held in hand, and a slender and reversely curved needle tip 1, the end of which is parallel to the needle handle 3; the needle tip 1 has at least one groove 11 for the suture to pass through, and the width of the opening of the groove 11 in the axial direction of the needle tip 1 is smaller than the inside of the groove 11; Furthermore, the needle tip 1 has a protective sleeve 14 on the outside that can move axially on the needle tip 1, and the protective sleeve 14 is connected to the needle tip 1 by an elastic component 15; Furthermore, the needle handle 3 has a limiter 31 that can move along the axial direction of the needle handle 3 .

[0016] The suture needle mainly includes the following operation process when used: Preparation process: Check that the needle tip 1 of the suture needle is intact and sharp, and the outer protective sleeve 14 of the needle tip 1 covers the sharp part of the needle tip 1. When the protective sleeve 14 receives axial pressure, it can slide toward the curved part 2 and expose the groove 11 of the needle tip 1; adjust the limiter 31 to prevent the suture needle from falling into the operating hole, and make the depth of the suture needle inserted into the operating hole not exceed the safe range; Suturing process: insert the needle tip 1 and the curved part 2 into the operation hole, adjust the depth of the needle tip 1 and the angle of the needle handle 3 so that the sharp part of the needle tip 1 is aligned with the fascia layer on one side of the operation hole, pull the needle handle 3 outward, the protective cover 14 retracts under pressure, the sharp part of the needle tip 1 is exposed and passes through the fascia layer and then exposed outside, after the groove 11 of the needle tip 1 is exposed, hang the suture into the groove 11; insert the needle tip 1 and the curved part 2 inward again, the groove 11 brings the suture into the inside of the operation hole, and repeat the puncture operation on the fascia layer on the other side of the operation hole; after the needle tip 1 and the groove 11 are exposed on the other side, use toothed forceps or other instruments to pick out the suture in the groove 11, pull the exposed sutures on both sides, so that the sutures pass through the fascia layers on both sides in a single strand; Finishing process: remove the suture needle from the operating hole and check whether any parts are dropped or lost. After confirming that they are correct, tie the sutures to complete the fascia suturing. If necessary, repeat the suturing process to complete multiple-point suturing and ensure that the fascia layer is tightly closed. Example

[0017] See also Figure 5 In this embodiment, the needle tip 1 replaces the groove 11 with a thread hole 12 for the suture to pass through. This embodiment allows the suture to be more firmly driven by the needle tip 1, preventing the suture from falling off from the needle tip 1 during the suturing process, affecting subsequent operations. Example

[0018] See also Figure 6 This embodiment is a further improvement based on the first embodiment. The specific differences between this embodiment and the first embodiment are: In this embodiment, the groove 11 has an elastic tongue-shaped component 13 along the axial direction of the needle tip 1, the tongue-shaped component 13 is close to the opening side of the groove 11 wall, and the end of the tongue-shaped component 13 is tilted toward the inside of the groove 11. This embodiment allows the suture to be more firmly driven by the needle tip 1, preventing the suture from falling off the needle tip 1 during the suturing process, and at the same time facilitates operations such as hanging and taking the thread. Example

[0019] See also Figure 7 This embodiment is a further improvement based on the first embodiment. The specific differences between this embodiment and the first embodiment are: In this embodiment, the needle tip 1 is not parallel to the needle handle 3, but has an arc, convex in the direction opposite to the needle handle 3. This embodiment allows the needle tip 1 to be more clearly visible to the surgeon after passing through one side of the tissue, facilitating operations such as thread hanging and thread removal.

[0020] The above is only a preferred specific implementation of the present invention; however, the protection scope of the invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A suture needle for deep suturing, characterized in that: include: A needle handle that can be held in the hand; The needle tip is slender and reversely curved, and has at least one thread hole or groove for the suture to pass through.

2. A suture needle for deep suturing according to claim 1, characterized in that: The needle tip end section is parallel to the needle handle.

3. A suture needle for deep suturing according to claim 1, characterized in that: The needle tip is not parallel to the needle handle, and the needle tip has an arc and bulges in a direction opposite to the direction of the needle handle.

4. A suture needle for deep suturing according to claim 1, characterized in that: The width of the groove opening in the axial direction of the needle tip is smaller than the interior of the groove.

5. A suture needle for deep suturing according to claim 4, characterized in that: The groove is provided with an elastic tongue-shaped component along the axial direction of the needle tip, the tongue-shaped component is close to one side of the opening of the groove wall, and the end of the tongue-shaped component is tilted toward the inside of the groove.

6. A suture needle for deep suturing according to claim 1, characterized in that: The needle tip is provided with a protective sleeve which can move axially along the needle tip, and the protective sleeve is connected to the needle tip by an elastic component.

7. A suture needle for deep suturing according to claim 1, characterized in that: The needle handle has a limiting component which can move along the axial direction of the needle handle.

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