Suture needle capable of walking in intradermal or subcutaneous tissue at uniform depth

Abstract

The suture needle comprises two needle tips, a needle body, a suture line connecting point and a suture line, the needle tips are connected with one end of the needle body, a plurality of annular marks are arranged at the connecting positions of the needle tips and the needle body, and the suture line connecting point is connected with the needle body. The depth indicator is used for indicating the intradermal or subcutaneous depth of the needle point; the needle body consists of a section A and a section B, the section A is longer than or equal to the section B, and the included angle between the section A and the section B is an obtuse angle; the suture connecting point is arranged at any position of the needle body and comprises a suture contact opening, a suture inlet and a suture cavity; the suture contact opening is larger than or equal to the suture inlet, the size of the suture inlet is slightly smaller than the diameter of the suture, and the two ends of the suture cavity are arcs or triangles which become smaller gradually. And the suture line connecting points are used for connecting the suture lines.

Description

Technical Field

[0001] The invention relates to the technical field of surgical suturing, in particular to a suturing needle which can move at a uniform depth in the skin or subcutaneous tissue. Background Art

[0002] The distance between the needle tip and the needle body of the traditional curved needle suture and the epidermis gradually deepens and then gradually becomes shallower when the needle tip and the needle body are in the subcutaneous layer. This running mode cannot meet the need of the suture needle to guide the suture to a fixed depth in the subcutaneous or intracutaneous layer. For example, in tension-relieving sutures, the suture needs to be fixed in the dermis to prevent it from slipping, so as to better disperse the tension, accelerate wound closure and reduce scar formation. Commonly used curved needles cannot fully meet this need. Summary of the invention

[0003] In response to this problem, the present invention proposes a suture needle that can move at a uniform depth in the skin or subcutaneous tissue, characterized in that it includes two needle tips, a needle body, a suture connection point and a suture, the needle tips are respectively connected to one end of the needle body, and a plurality of annular marks are provided at the connection between the needle tip and the needle body to indicate the depth of the needle tip in the skin or subcutaneous tissue; the needle body consists of section A and section B, and the length of section A is greater than or equal to the length of section B, and the angle between section A and section B is an obtuse angle; the suture connection point is provided at any position of the needle body, and the suture connection point includes a suture contact port, a suture entrance, and a suture cavity; the suture contact port is greater than or equal to the suture entrance, the size of the suture entrance is slightly smaller than the suture diameter, and the two ends of the suture cavity are gradually decreasing arcs or triangles; the suture connection point is used to connect the suture.

[0004] Preferably, both section A and section B of the needle body are straight lines, and the length of section A is equal to that of section B. The angle between section A and section B of the needle body is 120°-135°.

[0005] Furthermore, the suture connection point can also be a hollow hole-like structure, which is arranged at any position of the needle body, preferably, at the end of the other end of the needle body or at and near the connection point between section A and section B of the needle body.

[0006] Furthermore, the suture is connected to the suture connection point by bonding, welding, riveting, pressing, etc.

[0007] Furthermore, the needle body section A is a straight line, section B is an arc, the arc angle of section B is 0-72°, and the straight line direction of section A is the tangent direction of the arc section B.

[0008] Furthermore, the cross section of the needle tip is circular or triangular.

[0009] Furthermore, the sutures can be selected from absorbable sutures, non-absorbable sutures, smooth sutures, and barbed sutures as needed.

[0010] Preferably, the suture material is dioxanone polymer or other absorbable suture components.

[0011] In one embodiment, there is one needle tip connected to the end of the A end of the needle body, and the needle body consists of segment A and segment B, the length of segment A is greater than or equal to the length of segment B; segment A is a straight line, and segment B is a straight line or an arc.

[0012] Furthermore, segment B of the needle body is a straight line, and the angle between segment A and segment B of the needle body is 120°-135°.

[0013] Furthermore, segment B of the needle body is an arc, the arc angle of segment B is 0-72°, and the straight line direction of segment A is the tangent direction of segment B's arc.

[0014] In another embodiment, two ends of the suture thread are respectively connected to the needle body, that is, a double suture needle.

[0015] The present invention has the following advantages: (1) Fixed depth running within tissue: The front straight needle body design enables the needle tip and the needle body to run at a fixed depth level under the skin or within the skin, which is convenient for controlling the running level of the suture line and meeting the clinical tension-reducing needs; (2) Improving the tension-reducing effect: The suture is evenly fixed in the dermis or the superficial subcutaneous layer, which can better disperse the tension relief in the dermis and the superficial subcutaneous layer, prevent the suture from slipping in the deep tissue, and improve the tension-reducing effect; (3) Accelerating wound healing: Fixed depth running and better tension-reducing effect help to accelerate wound closure; (4) Reducing scar formation: The more efficient tension-reducing effect helps to reduce scar formation of linear incisions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0017] Figure 2 It is an enlarged structural schematic diagram of the suture connection point of the present invention;

[0018] Figure 3 It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0019] Figure 4 It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0020] Figure 5It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0021] Figure 6 It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0022] Figure 7 It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0023] Figure 8 It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0024] Fig. 9 It is a schematic structural diagram of an embodiment of a suture needle capable of traveling at a uniform depth within the skin or subcutaneous tissue according to the present invention;

[0025] Fig.10 This is a schematic diagram of the subcutaneous route of a general suture needle;

[0026] Fig.11 This is a schematic diagram of the subcutaneous movement of the suture needle of the present invention;

[0027] Fig.12 This is a schematic diagram of the subcutaneous movement of the suture needle of the present invention;

[0028] Fig.13 This is a schematic diagram of the subcutaneous movement of the suture needle of the present invention;

[0029] Figure markings: 1-needle tip, 2-needle body, 21-annular mark, A-needle body section A, B-needle body section B, 3-suture connection point, 31-suture contact port, 32-suture entrance, 33-suture cavity, 4-suture. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the invention is further described in detail below in conjunction with the accompanying drawings and embodiments. In order to thoroughly understand the present invention, detailed steps and detailed structures will be proposed in the following description to illustrate the technical solutions of the present invention. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention.

[0032] like Figure 1 As shown, the present invention provides a suture needle that can move at a uniform depth in subcutaneous tissue, comprising two needle tips 1, a needle body 2, a suture connection point 3 and a suture 4, wherein the needle tip 1 is connected to one end of the needle body 2 respectively, and a plurality of annular marks 21 are arranged at the connection between the needle tip 1 and the needle body 2 to indicate the depth of the needle tip 1 in the skin or under the skin; the needle body 2 is composed of a segment A and a segment B, and the length of the segment A is greater than or equal to the length of the segment B, and the angle between the segment A and the segment B is an obtuse angle;

[0033] like Figure 2 As shown, the suture connection point 3 is set at any position of the needle body 2, and the suture connection point 3 includes a suture contact port 31, a suture entrance 32, and a suture cavity 33; the suture contact port 31 is greater than or equal to the suture entrance 32, the size of the suture entrance 32 is slightly smaller than the diameter of the suture 4, and the two ends of the suture cavity 33 are gradually smaller arcs or triangles; the suture connection point 3 is used to connect the suture 4.

[0034] like Figure 1 As shown, both segment A and segment B are straight lines, and the included angle between segment A and segment B of the needle body is 120°-135°.

[0035] The suture connection point 3 can also be a hollow hole structure, which is arranged at any position of the needle body 2. Figure 4-9 The middle suture connection point 3 is set at the other end of the needle body 2. Figure 3 The embodiment is arranged at the connection point of the needle body section A and section B.

[0036] The suture 4 is connected to the suture connection point 3 by bonding, welding, riveting, pressing, etc.

[0037] like Figure 5 As shown, section A of the needle body is a straight line, section B is an arc, the arc angle of section B is 0-72°, and the straight line direction of section A is the tangent direction of the arc section B.

[0038] like Figure 1-Figure 6 As shown, the cross section of the needle tip is circular. Figure 7-Figure 9 As shown, the cross section of the needle tip is triangular.

[0039] Suture 3 can be selected as absorbable suture, non-absorbable suture, smooth suture, or barbed suture as needed. Suture 3 is made of dioxanone polymer or other absorbable suture components.

[0040] like Figure 6 , 9 As shown, both ends of the suture thread 3 are respectively connected to the needle body 2, that is, a double suture needle.

[0041] like Figure 1 , 3 As shown, there are two needle tips 1, each connected to one end of the needle body 2. The needle body 2 consists of a segment A and a segment B. The length of segment A is greater than or equal to the length of segment B. Segment A is a straight line, and segment B is a straight line or an arc.

[0042] like Figure 4-9 As shown, there is one needle tip 1 connected to the end of section A of the needle body 2.

[0043] like Fig.10 As shown, the distance between the needle tip and the needle body of the traditional curved needle suture and the epidermis gradually deepens and then gradually becomes shallower when they move in the subcutaneous layer.

[0044] like Figure 11-13 As shown, when the present invention is used, (i) the needle tip 1 is used to pierce the skin; (ii) when the needle tip 1 is inserted to a predetermined depth, the needle body 2 is rotated so that the needle body A section entering the skin is parallel to the skin and moves at a uniform depth in the skin or subcutaneous tissue; (iii) after the suture needle moves a certain distance and reaches a predetermined position, the skin is folded so that the needle tip passes through the skin; (iv) the needle body is taken out perpendicular to the skin. At this time, the suture line moves at a uniform depth in the skin or subcutaneous tissue.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention 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 that can travel at a uniform depth within the skin or subcutaneous tissue, characterized in that: The invention comprises two needle tips, a needle body, a suture connection point and a suture, wherein the needle tips are respectively connected to one end of the needle body, and a plurality of annular marks are arranged at the connection between the needle tip and the needle body to indicate the depth of the needle tip in the skin or under the skin; the needle body is composed of a section A and a section B, and the length of section A is greater than or equal to the length of section B, and the angle between section A and section B is an obtuse angle; the suture connection point is arranged at any position of the needle body, and the suture connection point comprises a suture contact port, a suture entrance, and a suture cavity; the suture contact port is greater than or equal to the suture entrance, the size of the suture entrance is slightly smaller than the diameter of the suture, and the two ends of the suture cavity are gradually decreasing arcs or triangles; the suture connection point is used to connect the suture.

2. The suture needle according to claim 1, characterized in that: The section A and the section B of the needle body are both straight lines, and the angle between the section A and the section B of the needle body is 120°-135°.

3. The suture needle according to claim 2, characterized in that: The suture connection point may also be a hollow hole-like structure, which is arranged at any position of the needle body, preferably, at the end of segment B of the needle body or at and near the connection point between segments A and B of the needle body.

4. The suture needle according to claim 3, characterized in that: The suture is connected to the suture connection point by bonding, welding, riveting, pressing, etc.

5. The suture needle according to claim 1, characterized in that: The needle body section A is a straight line, section B is an arc, the arc angle of section B is 0-72°, and the straight line direction of section A is the tangent direction of the arc section B.

6. The suture needle according to claim 1, characterized in that: The cross section of the needle tip is circular or triangular.

7. The suturing needle according to any one of claims 1 to 6, characterized in that: The sutures can be absorbable, non-absorbable, smooth or barbed sutures as required.

8. A suture needle capable of being inserted into the skin or subcutaneous tissue at a uniform depth, characterized in that: It includes a needle tip, a needle body, a suture connection point and a suture line. The needle body consists of section A and section B. The needle tip is connected to the A end of the needle body. The needle tip is provided with a plurality of annular marks to indicate the depth of the needle tip in the skin or under the skin. The length of section A of the needle body is greater than or equal to the length of section B. Section A is a straight line, and section B is a straight line or an arc.

9. The suturing needle according to claim 8, characterized in that: The needle body section B is a straight line, and the angle between the needle body sections A and B is 120°-135°.

10. The suturing needle according to claim 9, characterized in that: The needle body section B is an arc, the arc angle of section B is 0-72°, and the straight line direction of section A is the tangent direction of the arc of section B.

Images