Medical suture needle holder for curved needle
By designing the main operating lever and clamping arm, and using notches and springs to hold the curved needle, the stability problem of the curved needle when it is inserted at an angle is solved, achieving stable clamping of the curved needle and flexible adjustment of the insertion angle, thus improving the accuracy of sewing and the convenience of operation.
Patent Information
- Application Number
- CN202511233785.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2025-11-21
AI Technical Summary
Existing medical suture needle holders are prone to needle movement or deflection when the needle is inserted at an angle, making suturing difficult and requiring the surgeon to distract themselves from holding and adjusting the needle insertion angle.
The device employs a main operating lever and clamping arm design. The bent needle is clamped through the first and second notches, and the spring provides torque for clamping. The notch design and spring torque clamping of the bent needle increase the contact area and friction. The main operating lever adjusts the needle infeed angle in segments to ensure stable clamping.
It achieves stable clamping of the curved needle when the needle is inserted at an angle, reducing the movement or deflection of the curved needle. The surgeon can concentrate on adjusting the needle insertion angle, which improves the accuracy of suturing and the convenience of operation.
Smart Images
Figure CN120983094A_ABST
Abstract
Description
Technical Field
[0001] This application relates to a needle holder, and more particularly to a medical suture needle holder for curved needles. Background Technology
[0002] Existing medical suture needle holders such as Figure 1 As shown, it includes a first clamp arm and a second clamp arm hinged together in an X-shape. During suturing, the front ends of the first and second clamp arms hold the rear third of the curved needle for tissue puncture. The needle first pierces the first tissue to be sutured, then the second tissue, and finally exits from the second tissue. At this time, the assistant holds the front part of the curved needle through an instrument, while the surgeon releases the rear part of the curved needle. The assistant, holding the front part of the curved needle, pulls the curved needle out of the second tissue, and the surgeon ties a knot in the suture, thus completing one suture.
[0003] Normally, the rear third of the bent needle is perpendicular to the front ends of the first and second clamping arms. However, in some cases, for easier needle insertion, it is necessary to insert the needle at an angle. In this case, the angle between the rear third of the bent needle and the front ends of the first and second clamping arms is set to less than 90 degrees, meaning the bent needle is held at an angle by the needle holder. In this situation, the bent needle is very prone to moving or deflecting during operation. Summary of the Invention
[0004] In view of the above problems, this application aims to provide a medical suture needle holder for curved needles, which can conveniently adjust the needle insertion angle while ensuring that the rear third of the curved needle is stably clamped.
[0005] The medical suture needle holder for curved needles of this application includes: a main operating lever and a clamping arm; The main operating lever is formed in a straight line shape; the entire clamping arm is located above the main operating lever and is formed in a broken line shape; the front part of the clamping arm is hinged to the front part of the main operating lever; the upper surface of the front part of the main operating lever is formed in a horizontal plane, and the front part of the main operating lever has a downwardly recessed arc-shaped first notch near the front end, which is used to support the lower side of the rear third part of the bent needle; the lower surface of the front part of the clamping arm is formed in a horizontal plane, and the front part of the clamping arm has an upwardly recessed arc-shaped second notch near the front end, which is used to support the upper side of the rear third part of the bent needle; the first and second notches are used to tightly clamp the outer peripheral surface of the rear third part of the bent needle, forming a surface contact with the bent needle.
[0006] Preferably, the upper side of the front part of the main operating lever is formed with two supporting walls; the two supporting walls are arranged on the left and right sides of the main operating lever; the two supporting walls are respectively formed with mounting round holes; the rear end of the front part of the clamping arm is formed with a cylindrical rotating shaft, the two ends of the rotating shaft respectively extend to the left and right sides of the clamping arm; the left end of the rotating shaft is rotatably mounted in the mounting round hole of the supporting wall on the left side of the main operating lever, and the right end of the rotating shaft is rotatably mounted in the mounting round hole of the supporting wall on the right side of the main operating lever, so that the front part of the clamping arm is hinged with the front part of the main operating lever.
[0007] Preferably, the lower side of the clamping arm is formed with a spring, and the lower end of the spring is supported on the upper surface of the main operating lever; the spring is used to provide a torque to the clamping arm, so that the first notch of the operating lever and the second notch of the clamping arm tightly clamp the rear one-third part of the curved needle.
[0008] Preferably, the spring is a sheet spring formed in an L shape.
[0009] Preferably, the rear part of the clamping arm extends upward, and the top end is formed with a disc-shaped pressing plate.
[0010] Preferably, the main operating lever is divided into a first segment and a second segment; the front end of the first segment is formed with a through hole, and the rear end of the second segment is formed with a threaded hole; a bolt passes through the through hole of the first segment and is combined in the threaded hole of the second segment, so that the first segment and the second segment are fixedly combined together, so that the first segment and the second segment maintain a desired clamping angle, and the needle insertion angle of the curved needle is ensured.
[0011] Preferably, the opening size of the second notch is smaller than the opening size of the first notch, so that when the first notch and the second notch are opposite to each other, the second notch is located at the middle position of the first notch.
[0012] Preferably, the two sides of the first notch are formed with guide inclined surfaces; the lower side of the clamping arm is formed with two protruding teeth; the two protruding teeth are arranged on the two sides of the second notch and located outside the second notch; when the first notch and the second notch are opposite to each other, the two protruding teeth are engaged in the first notch.
[0013] Preferably, the rear end of the main operating lever is formed with a cylindrical handle, and four annular grooves are formed on the outer peripheral surface of the handle to accommodate the fingers of the operator when the operator holds the handle.
[0014] Preferably, the combined position of the first segment and the second segment is located at the rear part, the middle part, or the front part of the main operating lever.
[0015] The medical stitching needle holder for curved needle of the present application adopts the first notch and the second notch to hold the curved needle, forming a larger contact area, which is conducive to stable holding of the curved needle; the medical stitching needle holder for curved needle of the present application adopts the spring to provide torque for holding, so that the operator does not need to disperse the effort to hold the curved needle during the needle insertion process, and only needs to concentrate on the needle insertion; the medical stitching needle holder for curved needle of the present application forms two sections by the main operating rod, adjusts the needle insertion angle of the curved needle by adjusting the angle between the two sections, so that the needle insertion angle of the curved needle can be ensured, and the holding force for the curved needle can also be ensured. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a perspective structural schematic diagram of the prior art needle holder.
[0017] Figure 2 It is a perspective structural schematic diagram of the medical stitching needle holder for curved needle of the present application in state one.
[0018] Figure 3 It is a side view structural schematic diagram of the medical stitching needle holder for curved needle of the present application. Figure 2
[0019] Figure 4 It is a perspective structural schematic diagram of the medical stitching needle holder for curved needle of the present application in state two.
[0020] Figure 5 It is a perspective structural schematic diagram of the main operating rod of the medical stitching needle holder for curved needle of the present application.
[0021] Figure 6 It is an exploded structural schematic diagram of the main operating rod. Figure 5
[0022] Figure 7 It is a side view structural schematic diagram of the clamping arm of the medical stitching needle holder for curved needle of the present application.
[0023] Figure 8 It is an enlarged schematic diagram of the local part A of the clamping arm. Figure 7 DETAILED DESCRIPTION
[0024] Next, the present application will be described in detail in combination with the drawings.
[0025] Firstly, the reason why the prior art needle holder is easy to deviate or rotate when holding the curved needle at an angle is analyzed.
[0026] When the rear third of the curved needle is clamped obliquely at the front end of the needle holder, the clamped part of the rear third of the curved needle between the front ends of the first and second clamping arms is unevenly stressed, and in the case of resistance from the tissue when the needle is inserted, the position of the curved needle on the needle holder is prone to movement or deflection, which brings difficulties to suturing. In addition, during operation, the operator needs to clamp the curved needle tightly and operate the needle holder to rotate so that the curved needle presents a circular arc trajectory for needle insertion. In the case of difficulties in needle insertion, such as oblique needle insertion, the operator's attention is mostly concentrated on the needle insertion trajectory, and the curved needle is prone to be clamped loosely, resulting in movement or deflection of the curved needle.
[0027] Based on the above analysis, the inventors designed the medical suturing needle holder for curved needles of the present application, as shown in Figures 2-8
[0028] To avoid the adverse consequences of the forward component force of the X-shaped articulated needle holder, a notch is used in the present application to wrap and fix the rear third of the curved needle, increasing the contact area so that it cannot move and deflect. Due to the design of the notch, the rear third of the curved needle is always perpendicular to the clamping part of the needle holder, which is not convenient for achieving a flexible needle insertion angle. Therefore, the inventors designed the main operating rod in two sections, and adjusted the needle insertion angle by adjusting the angle between the two sections.
[0029] The medical suturing needle holder for curved needles of the present application comprises a main operating rod 10 and a clamping arm 20.
[0030] The main operating rod 10 is formed in a straight line shape; the clamping arm 20 is formed in a broken line shape and located on the upper side of the main operating rod 10.
[0031] The front part of the clamping arm 20 is hinged together with the front part of the main operating rod 10; the upper surface of the front part of the main operating rod 10 is formed as a horizontal plane, and the front part of the main operating rod 10 is formed with a downwardly recessed circular arc-shaped first notch 14 at a position close to the front end, for supporting the lower side of the rear third of the curved needle; the lower surface of the front part of the clamping arm 20 is formed as a horizontal plane, and the front part of the clamping arm 20 is formed with an upwardly recessed circular arc-shaped second notch 24 at a position close to the front end, for supporting the upper side of the rear third of the curved needle. The first notch 14 and the second notch 24 are used to tightly clamp the outer peripheral surface of the rear third of the curved needle, and form a surface contact with the curved needle. The first notch 14 and the second notch 24 are preferably formed as rough surfaces to increase the friction.
[0032] The upper side of the front part of the main operating rod 10 is formed with two support walls 13; the two support walls 13 are arranged on the left and right sides of the main operating rod 10; and the two support walls 13 are respectively formed with mounting round holes.
[0033] A cylindrical rotating shaft 22 is formed on the rear end of the front part of the clamping arm 20, and the two ends of the rotating shaft 22 extend to the left and right sides of the clamping arm 20 respectively; the left end of the rotating shaft 22 is rotatably installed in the mounting circular hole of the supporting wall 13 on the left side of the main operating lever 10, and the right end of the rotating shaft 22 is rotatably installed in the mounting circular hole of the supporting wall 13 on the right side of the main operating lever 10, so that the front part of the clamping arm 20 is hinged with the front part of the main operating lever 10.
[0034] The up-and-down design of the clamping arm 20 and the main operating lever 10, and the fact that the length and volume of the main operating lever are greater than those of the clamping arm, make it easier for the operator to accurately insert the needle when operating with the main operating lever as the reference axis. Figure 2 For example, in the state shown in the figure, the rotating shaft of the main operating lever and the curved needle is parallel, providing a physical reference for the operator. However, the X-shaped needle holder in the prior art does not have a clear reference axis.
[0035] A spring 23 is formed on the lower side of the clamping arm 20, and the lower end of the spring 23 is supported on the upper surface of the main operating lever 10; the spring 23 is used to provide a moment of force to the clamping arm 20, so that the first notch 14 of the operating lever 10 and the second notch 24 of the clamping arm 20 tightly hold the back third part of the curved needle. The spring 23 is a sheet-shaped spring and is formed in an L shape.
[0036] The rear part 21 of the clamping arm 20 extends upward, and the top end is formed as a disc-shaped pressing plate.
[0037] The main operating lever 10 is divided into a first section 11 and a second section 12; the front end of the first section 11 is formed with a through hole 11a, and the rear end of the second section 12 is formed with a threaded hole 12a; a bolt 15 is combined in the threaded hole 12a of the second section 12 after passing through the through hole 11a of the first section 11, thereby fixedly combining the first section 11 and the second section 12 together, so that the first section 11 and the second section 12 maintain a desired clamping angle, ensuring the insertion angle of the curved needle.
[0038] The opening size of the second notch 24 is smaller than that of the first notch 14, so that when the first notch 14 and the second notch 24 face each other, the second notch 24 is located at the middle position of the first notch 14. The large first notch 14 is mainly arranged to easily place the curved needle into the first notch. The second notch can be closely engaged with the outer circumferential surface of the curved needle.
[0039] The two sides of the first notch 14 are formed with guiding slopes; the lower side of the clamping arm 20 is formed with two protruding teeth 25; the two protruding teeth 25 are distributed on the two sides of the second notch 24 and outside the second notch 24, and are engaged in the first notch 14 when the first notch 14 and the second notch 24 face each other. The two protruding teeth 25 mainly help the needle to be positioned in the first notch.
[0040] The rear end of the first section of the main operating rod 10 is formed with a cylindrical handle, and four annular grooves are formed on the outer circumferential surface of the handle to accommodate the fingers of the operator when the operator holds the handle.
[0041] The joint position of the first section 11 and the second section 12 is located at the rear, middle or front of the main operating rod.
[0042] In use, the needle insertion angle is determined according to the actual situation of the position to be sutured, the clamping angle of the first section and the second section is adjusted according to the needle insertion angle, and then the clamping angle is fixed by screwing and tightening. The rear end of the clamping arm is pressed to separate the front end of the clamping arm from the front end of the main operating rod to form an opening, the rear third end of the needle is inserted into the opening and located in the first notch; the clamping arm is released, and the clamping arm rotates around the rotating shaft under the action of the spring, the front end of the clamping arm and the front end of the main operating rod are clamped, and the rear third section of the needle is firmly fixed in the first notch and the second notch. The operator holds the handle at the rear end of the main operating rod to accurately insert the needle.
Claims
1. A medical suture needle holder for curved needles comprising: Main Operating lever, clamping arm; The main operating lever is formed in a straight line shape; The overall of the clamping arm is located on the upper side of the main operating lever and is formed in a broken line shape; The front part of the clamping arm is hinged with the front part of the main operating lever; the upper surface of the front part of the main operating lever is formed in a horizontal plane, and the front part of the main operating lever is formed with a first concave notch of a circular arc shape which is concave downward at a position close to the front end for supporting the lower side of the rear third part of the curved needle; the lower surface of the front part of the clamping arm is formed in a horizontal plane, and the front part of the clamping arm is formed with a second concave notch of a circular arc shape which is concave upward at a position close to the front end for supporting the upper side of the rear third part of the curved needle; the first concave notch and the second concave notch are used to tightly clamp the outer peripheral surface of the rear third part of the curved needle and form a surface contact with the curved needle.
2. The medical suture needle holder for curved needles according to claim 1, characterized in that: The upper side of the front part of the main operating lever is formed with two support walls; the two support walls are arranged on the left and right sides of the main operating lever; the two support walls are respectively formed with mounting round holes; the rear end of the front part of the clamping arm is formed with a cylindrical rotating shaft, and the two ends of the rotating shaft respectively extend to the left and right sides of the clamping arm; the left end of the rotating shaft is rotatably mounted in the mounting round hole of the support wall on the left side of the main operating lever, and the right end of the rotating shaft is rotatably mounted in the mounting round hole of the support wall on the right side of the main operating lever, so that the front part of the clamping arm is hinged with the front part of the main operating lever.
3. The medical suture needle holder for curved needles according to claim 1, characterized in that: The lower side of the clamping arm is formed with a spring, and the lower end of the spring is supported on the upper surface of the main operating lever; the spring is used to provide a moment of force to the clamping arm, so that the first concave notch of the operating lever and the second concave notch of the clamping arm tightly clamp the rear third part of the curved needle.
4. The medical suture needle holder for curved needles according to claim 1, characterized in that: The spring is a sheet spring and is formed in an L shape.
5. The medical suture needle holder for curved needles according to claim 1, characterized in that: The rear part of the clamping arm extends upward, and the top end is formed in a disc-shaped pressing plate.
6. The medical suture needle holder for curved needles according to claim 1, characterized in that: The main operating lever is divided into a first segment and a second segment; the front end of the first segment is formed with a through hole, and the rear end of the second segment is formed with a threaded hole; a bolt passes through the through hole of the first segment and is combined in the threaded hole of the second segment, so that the first segment and the second segment are fixedly combined together, so that the first segment and the second segment maintain a desired clamping angle, and the needle insertion angle of the curved needle is ensured.
7. The medical suture needle holder for curved needles according to claim 1, characterized in that: The opening size of the second concave notch is smaller than the opening size of the first concave notch, so that when the first concave notch and the second concave notch are opposite to each other, the second concave notch is located at the middle position of the first concave notch.
8. The medical suture needle holder for curved needles according to claim 7, characterized in that: The two sides of the first concave notch are formed with guide inclined surfaces; the lower side of the clamping arm is formed with two protruding teeth; the two protruding teeth are distributed on the two sides of the second concave notch and are located outside the second concave notch; when the first concave notch and the second concave notch are opposite to each other, the two protruding teeth are engaged in the first concave notch.
9. The medical needle holder for curved needles according to claim 1, wherein: a rear end of the main operating lever is formed with a cylindrical handle, and four annular grooves are formed on an outer peripheral surface of the handle to accommodate fingers of an operator when the operator holds the handle.
10. The medical needle holder for curved needles according to claim 6, wherein: the joining position of the first section and the second section is located at a rear portion, a middle portion, or a front portion of the main operating lever.