Needle head of surgical puncture guider
By designing the needle and threading structure of the surgical puncture guide needle, the problem of tissue damage during puncture in the prior art is solved, and the effect of reducing wounds and reducing tissue damage is achieved.
Patent Information
- Application Number
- CN202420703625.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing surgical puncture guide needles are prone to tissue damage during the puncture process, resulting in larger wounds and increasing the difficulty of healing.
A surgical puncture guide needle is designed, which includes a needle head and a threading part. The needle head extends out of the transition section through the tail of the needle tip, and a threading hole and a threading part are provided at the threading part. The outer diameter of the transition section is larger than that of the threading part. Outer diameter to reduce tissue damage during puncture.
Through this structural design, the needle head becomes the largest end of the entire puncture needle. During puncture, the wound can be as small as possible, effectively reducing damage to tissue, and avoiding sutures to increase the size of the threading part.
Smart Images
Figure CN222426163U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a surgical puncture guide needle. Background Art
[0002] The surgical puncture guide is a tool used to guide the suture through the sacrospinous ligament during sacrospinous ligament fixation. The suture guided by the puncture guide is tied and fixed with the suture previously sutured to other tissues to fix the prolapsed organ (bladder, uterus, etc.) to the sacrospinous ligament.
[0003] So far, surgical puncture guides are of various types and easy to operate. The puncture needle is an important part of the surgical stapler. The commonly used puncture needle includes a needle part and a threading part. In the existing needle structure, the needle part is relatively thin, but in order to facilitate threading, the outer diameter of the threading part is usually larger. During the surgical suturing process, after the needle passes through the suture site, the threading part needs to be subjected to external force, which will cause a larger wound at the puncture site, increasing the difficulty of healing. Utility Model Content
[0004] In order to solve the problems of the prior art, the present application provides a surgical puncture guide needle, which changes the traditional needle structure by designing the needle structure and reduces damage to tissues during surgical suturing.
[0005] To achieve the above objectives, this application adopts the following technical solutions:
[0006] An embodiment of the present application provides a surgical puncture guide needle, including a needle head and a threading portion, the needle head including a needle tip and a transition end extending from the tail of the needle tip, the threading portion is located at the tail of the transition end, and the threading portion is provided with a threading hole and a thread accommodating portion for accommodating sutures; the outer diameter of the transition end is larger than the outer diameter of the threading portion.
[0007] As a further preferred solution, the threading hole described in the embodiment of the present application is a through hole arranged along the radial direction of the threading portion, and arc-shaped concave surfaces extend toward the rear end from both sides of the threading portion of the rear wall of the through hole to form the thread accommodating portion.
[0008] As a further preferred scheme, the threading hole described in the embodiment of the present application is a long hole opened along the axial direction of the threading part, and a slot is opened on the threading part of the outer wall of the long hole to form the thread accommodating part, the slot is connected to the long hole, and the end of the slot extends to the tail of the threading part.
[0009] As a further preferred solution, the width of the notch near the needle head in the embodiment of the present application is greater than its width near the tail of the threading part, and the width of the notch at the end of the threading part is smaller than the diameter of the suture.
[0010] As a further preferred scheme, the notch described in the embodiment of the present application is composed of a circular or elliptical hole groove and a straight groove opened on the threading part, the circular or elliptical hole groove, the straight groove, and the long hole are interconnected, and the straight groove extends to the tail of the threading part.
[0011] As a further preferred solution, the notch described in the embodiment of the present application includes a groove radially opened at the front end of the threading part and a linear groove along the axis opened at the rear end of the threading part, and the thread accommodating part is connected to the linear groove and the long hole.
[0012] As a further preferred solution, the threading hole described in the embodiment of the present application is a long hole extending from the end of the threading part to the needle along the axial direction.
[0013] As a further preferred solution, a convex ring extends inwardly along the radial direction of the long hole at a position corresponding to the transition end on the inner wall of the long hole described in the embodiment of the present application.
[0014] As a further preferred solution, the shape of the needle tip described in the embodiments of the present application is a cone, a regular pyramid, an oblique pyramid, or a single-faceted needle that is pin-cut from the transition end to the front end of the needle tip.
[0015] Compared with the prior art, the beneficial effects of this application are:
[0016] 1. The surgical puncture guide needle described in the embodiment of the present application extends a transition section at the tail of the needle tip, and the outer diameter of the threading portion is smaller than the outer diameter of the transition section, so that the needle head becomes the largest end of the entire puncture needle. When the puncture needle passes through the sacrospinous ligament, the wound can be made as small as possible, effectively reducing damage to the tissue.
[0017] 2. The thread accommodating portion provided in the surgical puncture guide needle described in the embodiment of the present application can accommodate the portion of the suture located behind the threading hole after the suture passes through the threading hole, thereby avoiding an increase in the size of the threading portion when the suture exists after threading. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0019] Figure 1 This is a schematic diagram of the structure of the surgical puncture guide needle described in Example 1 of the present application.
[0020] Figure 2 This is a schematic diagram of the structure of the surgical puncture guide needle described in Example 3 of the present application.
[0021] Figure 3 This is a schematic diagram of the structure of the surgical puncture guide needle described in Example 4 of the present application.
[0022] Figure 4 This is a schematic diagram of the structure of the surgical puncture guide needle described in Example 4 of the present application.
[0023] Figure 5 This is a deformation structure diagram of the surgical puncture guide needle described in Example 4 of the present application.
[0024] Among them, the reference numerals of the figures are: 10, needle head; 11, needle tip; 12, transition end; 20, threading part; 21, threading hole; 22, thread receiving part.
[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0027] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0028] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0029] like Figure 1As shown, the surgical puncture guide needle of Example 1 of the present application includes a needle head 10 and a threading part 20, wherein the needle head 10 includes a needle tip 11 and a transition end 12 extending from the tail of the needle tip 11, wherein the threading part 20 is located at the tail of the transition end 12, and the threading part 20 is provided with a threading hole 21 and a thread-accommodating part 22 for accommodating sutures; the outer diameter of the transition end 12 is larger than the outer diameter of the threading part 20, and the threading hole 21 is a through hole arranged along the radial direction of the threading part 20, and the arc-shaped concave surfaces extending to the rear end from both sides of the threading part of the rear wall of the through hole are the thread-accommodating parts. The threading part of the arc-shaped concave part is thinned, which can further make the threading part significantly smaller than the transition end, so that the needle head is the largest part of the entire puncture needle, ensuring that the threading part can easily pass through the ligament tissue without damaging the tissue; on the other hand, it can also be used as a thread-accommodating part for accommodating sutures, and the suture is located in the thread-accommodating part after threading, avoiding the increase of the threading part.
[0030] like Figure 2-5 As shown: the surgical puncture guide needle of Example 2 of the present application comprises a needle head 10 and a threading part 20, wherein the needle head 10 comprises a needle tip 11 and a transition end 12 extending from the tail of the needle tip, wherein the threading part 20 is located at the tail of the transition end 12, and the threading part 20 is provided with a threading hole 21 and a thread receiving part 22 for receiving the suture; the outer diameter of the transition end 12 is larger than the outer diameter of the threading part 20, and the threading hole 21 is a long hole provided along the axial direction of the threading part, and a notch is provided on the threading part 20 on the outer wall of the long hole to form the thread receiving part 22, wherein the notch is connected to the long hole, and the end of the notch extends to the tail of the threading part 20. When threading, the suture is inserted from the long hole and pulled out from the notch, and after the surgical operator knots the suture at the inserted end, the suture can be pulled out from the tail so that the knot is located in the notch.
[0031] Based on the solution of Example 2, as a preferred embodiment, the width of the slot near the needle head is greater than its width near the tail of the threading part, and the width of the slot at the end of the threading part is less than the diameter of the suture.
[0032] like Figure 2 As shown, specifically, in Example 3, as the first implementation method, the slot is composed of a circular or elliptical hole slot and a straight slot opened on the threading part, the circular or elliptical hole slot, the straight slot, and the long hole are connected to each other, and the front end of the straight slot is connected to the circular or elliptical slot and extends to the tail of the threading part.
[0033] like Figure 3 As shown, in Example 4, as a second implementation, the notch includes a groove radially opened at the front end of the threading portion and a linear groove along the axis opened at the rear end of the threading portion, and the groove is connected to the linear groove and the long hole.
[0034] In the schemes of the above-mentioned embodiments 3 and 4, the width of the front end of the notch can be made greater than the width of the rear end of the notch, so that the operator can pull the suture out of the front end of the control through the long hole, and the suture can be clamped at the rear end. Furthermore, the aperture of the long hole used for threading can be set as large as possible to make the hole wall of the threading part thinner, and the hole wall can be deformed under the action of external force clamping to clamp the suture. Furthermore, the length of the straight groove can be longer than the length of the circular or elliptical hole groove, groove, etc., and can also be shorter than the length of the circular or elliptical hole groove, groove, etc.
[0035] On the basis of the schemes listed in the above embodiments 1-4, further, Figure 2-5 As shown, the shape of the needle tip 11 is a cone, a regular pyramid, an oblique pyramid or a single-faceted needle cut from the transition end to the front end of the needle tip. As a further preferred solution, the threading hole 21 described in the embodiment of the present application is a long hole extending from the end of the threading portion 20 to the needle tip 11 along the axial direction. Preferably, a convex ring extends inwardly along the radial direction of the long hole at the position corresponding to the transition end on the inner wall of the long hole. After the needle completes the puncture, the suture thread is knotted at the needle tip, and the knot can be stuck at the convex ring. For example Figure 5 As shown, when the structure of the needle tip is a single-faceted needle tip with the transition end pin-cut toward the front end of the needle tip, the long hole passes through the needle tip from the tail end of the threading portion, and after threading, a knot can be tied at the needle tip.
[0036] The above description is only a preferred embodiment of the present application, and does not limit the protection scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.
Claims
1. A surgical puncture guide needle, comprising a needle portion and a threading portion, characterized in that: The needle head includes a needle tip and a transition end extending from the tail of the needle tip, the threading portion is located at the tail of the transition end, and the threading portion is provided with a threading hole and a thread accommodating portion for accommodating a suture thread; the outer diameter of the transition end is greater than the outer diameter of the threading portion.
2. The surgical puncture guide needle according to claim 1, characterized in that: The threading hole is a through hole arranged along the radial direction of the threading portion, and arc-shaped concave surfaces are extended toward the rear end of the threading portion on both sides of the rear wall of the through hole to form the thread accommodating portion.
3. The surgical puncture guide needle according to claim 2, characterized in that: The threading hole is a long hole opened along the axial direction of the threading part, and a notch is opened on the threading part of the outer wall of the long hole to form the thread accommodating part. The notch is connected to the long hole, and the end of the notch extends to the tail of the threading part.
4. The surgical puncture guide needle according to claim 3, characterized in that: The width of the notch near the needle head is greater than the width of the notch near the tail of the threading part, and the width of the notch at the end of the threading part is smaller than the diameter of the suture.
5. The surgical puncture guide needle according to claim 3, characterized in that: The notch is composed of a circular or elliptical hole groove and a linear groove opened on the threading part. The circular or elliptical hole groove, the linear groove and the long hole are interconnected, and the linear groove extends to the tail of the threading part.
6. The surgical puncture introducer needle according to claim 3, characterized in that: The notch includes a groove radially opened at the front end of the threading portion and a linear groove along the axis opened at the rear end of the threading portion, and the thread receiving portion is connected with the linear groove and the long hole.
7. The surgical puncture introducer needle according to claim 6, characterized in that: The threading hole is a long hole extending from the end of the threading part to the needle along the axial direction.
8. The surgical puncture introducer needle according to claim 7, characterized in that: A convex ring extends inwardly along the radial direction of the long hole at a position corresponding to the transition end on the inner wall of the long hole.
9. The surgical puncture guide needle according to any one of claims 1 to 8, characterized in that: The shape of the needle tip is a cone, a regular pyramid, an oblique pyramid or a single section cut from the transition end to the front end of the needle.