A looped needle

Abstract

The utility model discloses a kind of annular needles, it is related to surgical instrument field. Including the first end of the open circular needle ring needle ring is connected with needle handle by needle stem, when using, needle handle is hand-held to facilitate rotating needle ring, the second end of needle ring is provided with needle tip, needle tip extends to the outside of first end along the extension direction of second end, and the distance between the end of needle tip and the center of needle ring is greater than the radius of needle ring, so that needle tip protrudes the outside of needle ring, needle tip and first end are provided with the gap for giving way, by rotating needle handle, needle ring enters inside skin through puncture hole, the motion trail of needle tip is controlled, after needle tip passes through surgical site, rotate a round in skin and be worn by puncture hole, annular puncture channel is formed inside skin, suture thread passes through the puncture channel and is sutured to surgical site, reduce the number of wound in operation process, reduce the risk of postoperative puncture hole infection.

Description

Technical Field

[0001] This utility model relates to the field of surgical tools, and in particular to a ring needle. Background Technology

[0002] Ordinary surgical needles are generally curved or straight. During use, the curved or straight surgical needle passes through the surgical site, forming a curved or straight channel under the skin. It creates an entry hole and an exit hole on both sides of the surgical site. The suture passes through the channel formed by the surgical needle to close the surgical site. However, because the entry and exit holes of the curved or straight surgical needle are located on both sides of the surgical site, it results in a large number of unnecessary wounds after the operation. In the later care process, not only should attention be paid to the healing of the surgical site, but also to the location of the entry and exit holes, which increases the risk of postoperative infection. Utility Model Content

[0003] The purpose of this invention is to provide a ring needle to solve the problems existing in the prior art, reduce the number of surgical wounds, and lower the risk of postoperative infection.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a ring needle, including a needle shank and a needle ring; The needle ring is an open circular ring, which includes a first end and a second end. The first end is connected to the needle handle through the needle bar, and the second end is provided with a needle tip. The needle tip extends to the outside of the first end along the extension direction of the second end. The distance between the needle tip and the center of the needle ring is greater than the radius of the needle ring, and a clearance gap is provided between the needle tip and the first end.

[0005] In one embodiment, the plane containing the needle loop is perpendicular to the axis of the needle bar.

[0006] In one embodiment, the diameter of the needle ring is 1 mm to 5 mm.

[0007] In one embodiment, the needle bar and the needle ring have the same diameter, ranging from 0.2 mm to 2 mm.

[0008] In one embodiment, the needle handle is provided with anti-slip texture, which is evenly distributed along the axial direction of the needle handle.

[0009] In one embodiment, the needle tip extends along the tangential direction of the second end.

[0010] In one embodiment, the needle tip is arc-shaped, and the curvature of the needle tip is less than the curvature of the needle loop.

[0011] In one embodiment, the needle tip is provided with a barb, which is located inside the needle tip.

[0012] In one embodiment, a cavity is provided inside the needle handle, and the cavity extends axially along the needle handle.

[0013] In one embodiment, a hollow channel is provided inside the needle bar, needle ring, and needle tip, and the hollow channel communicates with the cavity.

[0014] The present invention achieves the following technical advantages over the prior art: The open-type circular needle ring includes a first end and a second end. The first end is connected to the needle handle via a needle bar, allowing for easy rotation of the needle ring by holding the needle handle during use. The second end has a needle tip that extends outward from the first end along the extension direction of the second end. The distance between the tip and the center of the needle ring is greater than the radius of the needle ring, causing the needle tip to protrude outward from the outside of the needle ring. Holding the needle handle, the needle tip is inserted into the skin to form an insertion hole. A clearance gap is provided between the needle tip and the first end. By rotating the needle handle, the needle ring is allowed to enter the skin through the insertion hole. By controlling the movement trajectory of the needle tip, it is made to rotate once inside the skin after passing the surgical site and then exit through the insertion hole, forming a circular puncture channel inside the skin. Sutures pass through this puncture channel to suture the surgical site, leaving only one wound at each puncture site, reducing the number of wounds during the operation and lowering the risk of postoperative infection at the insertion hole. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the ring-shaped surgical needle in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure in an embodiment of the present invention, showing that the axis of the needle bar is perpendicular to the plane containing the needle ring; Among them, 1. needle handle; 2. needle ring; 3. needle bar; 4. needle tip; 5. clearance gap. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The purpose of this invention is to provide a ring needle to solve the problems existing in the prior art, reduce the number of surgical wounds, and lower the risk of postoperative infection.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Please refer to Figure 1 This embodiment provides a ring needle, including a needle handle 1 and a needle ring 2. The needle ring 2 is generally an open-ended circular shape, with a first end and a second end. The first end of the needle ring 2 is fixedly connected to the end of the needle handle 1 via a needle bar 3. The needle bar 3 increases the distance between the needle ring 2 and the needle handle 1, facilitating control of the orientation of the needle ring 2 via the needle handle 1 during use. The second end is provided with a needle tip 4 for piercing the skin. The needle tip 4 extends along the extension direction of the second end to the outside of the first end, and the distance between the needle tip 4 and the center of the needle ring 2 is greater than the radius of the needle ring 2, so that the clamping distance between the needle tip 4 and the outer surface of the needle ring 2 is greater than the radius of the needle ring 2. The needle tip 4 is at an acute angle. By rotating the needle handle 1, the needle tip 4 is adjusted to be perpendicular to the skin, so that the needle tip 4 can easily pierce the skin. A clearance gap 5 is provided between the needle tip 4 and the first end. After the needle tip 4 pierces the skin, it forms an insertion hole. By rotating the needle ring 2 through the needle handle 1, the skin of the insertion hole passes through the clearance gap 5, so that the needle ring 2 can rotate into the skin and control the movement direction of the needle tip 4. Finally, it exits through the insertion hole, reducing the number of surgical wounds and lowering the risk of postoperative infection. The needle tip 4 can pass through the surgical site to form a ring channel inside the skin. The suture passes through the ring channel to suture the surgical site.

[0021] Preferably, the needle tip 4, needle ring 2, and needle bar 3 are made of a material with a certain degree of rigidity, which is required to ensure that the ring needle can maintain its fixed shape during puncture. The material with a certain degree of rigidity includes, but is not limited to, stainless steel, titanium alloy, etc.

[0022] The plane containing the needle ring 2 can be parallel to the axis of the needle bar 3. In this embodiment, when the rotation of the needle ring 2 is controlled by the needle handle 1, the range of motion of the needle handle 1 and the needle bar 3 is relatively large, which is difficult to implement in a small space. Therefore, the axis of the needle bar 3 can be set at an angle to the plane containing the needle ring 2, thereby reducing the range of motion of the needle handle 1 and the needle bar 3 when rotating the needle ring 2. (Reference) Figure 2 In this embodiment, the plane where the needle ring 2 is located is perpendicular to the axis of the needle bar 3, so that the movement of the needle handle 1 and the needle bar 3 is controlled within the range of the needle ring 2.

[0023] Different sizes of circular needles are selected according to the size of different surgical incisions, as long as they can form a circular channel at the incision site for suturing. In this embodiment, the diameter of the needle ring 2 is 1 mm to 5 mm, preferably 2 mm, and the diameter of the needle shank 3 is the same as that of the needle ring 2, and the diameter is 0.2 mm to 2 mm, preferably 1 mm, which is suitable for surgeries with smaller incisions.

[0024] Since the rotation of the needle ring 2 needs to be controlled by the needle handle 1, in order to enhance the fixing effect of the needle handle 1 when it is held or driven by other driving devices, anti-slip texture is provided on the needle handle 1. The anti-slip texture is evenly distributed along the axis of the needle handle 1 to prevent the needle handle 1 from being wetted by disinfectant, blood or body fluids during the operation, which would reduce the friction between the surface of the needle handle 1 and the hand or clamping device, thus ensuring the smooth puncture of the needle ring 2 into the skin.

[0025] Preferably, the needle handle 1 is provided with a cavity, and the cavity extends along the axial direction of the needle handle 1. The driving device can be clamped on the outer surface of the needle handle 1, or it can be inserted into the cavity of the needle handle 1 by plugging. The friction between the driving device and the inside of the cavity drives the needle ring 2 to rotate.

[0026] The driving device includes, but is not limited to, a robotic arm, a rotary motor, or other equipment that can drive the needle handle 1 to rotate.

[0027] The needle tip 4 is located at the second end of the ring. The shape of the needle tip 4 can be straight or curved, as long as it can smoothly penetrate the skin. When the needle tip 4 is straight, it extends along the tangent of the second end; when the needle tip 4 is curved, its curvature is less than that of the needle ring 2, so as to avoid obstruction by the needle ring 2 when the needle tip 4 penetrates the skin.

[0028] Since the suture needs to pass through the circular channel formed by the circular needle first, a barb can be provided on the needle tip 4 to facilitate the passage of the suture through the circular channel, or a hollow structure can be provided in the circular needle.

[0029] When the needle tip 4 is equipped with a barb, the needle tip 4 passes through the insertion hole and fixes the suture to the barb. As the needle ring 2 exits the annular channel, the needle tip 4 carries the suture through the annular channel and leaves the suture inside the annular channel. The barb is set inside the needle tip 4 to prevent the barb from piercing the side wall of the annular channel when the needle ring 2 exits the annular channel.

[0030] When the circular needle has a hollow structure, the needle bar 3, needle ring 2 and needle tip 4 are provided with hollow channels. The hollow channels are connected to the cavity provided in the needle handle 1. After the circular needle forms a circular channel in the skin, the suture can pass through the cavity in the needle handle 1, the hollow channels in the needle bar 3, needle ring 2 and needle tip 4 pass through the circular channel, and finally the circular needle is withdrawn, leaving the suture in the circular channel to complete the suturing of the surgical site.

[0031] This circular needle can be used not only for suturing surgical sites, but also in procedures such as hair transplantation that require creating puncture holes in the skin, reducing the number of wounds on the skin and the risk of later infection.

[0032] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0033] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A ring needle, characterized in that, Includes needle handle (1) and needle ring (2); The needle ring (2) is an open circular ring, which includes a first end and a second end. The first end is connected to the needle handle (1) through the needle bar (3). The second end is provided with a needle tip (4). The needle tip (4) extends to the outside of the first end along the extension direction of the second end. The distance between the end of the needle tip (4) and the center of the needle ring (2) is greater than the radius of the needle ring (2). A clearance gap (5) is provided between the needle tip (4) and the first end.

2. The annular needle according to claim 1, characterized in that, The plane containing the needle ring (2) is perpendicular to the axis of the needle bar (3).

3. The annular needle according to claim 1, characterized in that, The diameter of the needle ring (2) is 1 mm to 5 mm.

4. The annular needle according to claim 1, characterized in that, The needle bar (3) has the same diameter as the needle ring (2), and the diameter is 0.2 mm to 2 mm.

5. The annular needle according to claim 1, characterized in that, The needle handle (1) is provided with anti-slip texture, which is evenly distributed along the axial direction of the needle handle (1).

6. The annular needle according to claim 1, characterized in that, The needle tip (4) extends along the tangential direction of the second end.

7. The annular needle according to claim 1, characterized in that, The needle tip (4) is arc-shaped, and the curvature of the needle tip (4) is less than the curvature of the needle ring (2).

8. The annular needle according to claim 1, characterized in that, The needle tip (4) is provided with a barb, which is located inside the needle tip (4).

9. The annular needle according to claim 1, characterized in that, The needle handle (1) has a through cavity that extends along the axial direction of the needle handle (1).

10. The annular needle according to claim 9, characterized in that, Hollow channels are provided inside the needle bar (3), the needle ring (2) and the needle tip (4), and the hollow channels are connected to the cavity.

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