Reverse rotator cuff stitching instrument
By designing a rotator cuff reverse stapler and using a rotating connection between the arc-shaped puncture needle and the shell, the problem of difficulty in suturing the lower surface of the rotator cuff is solved, and stable puncture and suture from the lower surface to the upper surface is achieved, which facilitates the clamping of sutures and improves surgical efficiency.
Patent Information
- Application Number
- CN202410153513.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-07-22
AI Technical Summary
The rotator cuff stapler is difficult to control the needle point when suturing the lower surface of the rotator cuff, and the small space makes it difficult to find the suture, which increases the difficulty of surgery.
A rotator cuff reverse stapler is designed, which uses an arc-shaped puncture needle to rotate and connects to the shell. The puncture needle is fixed by a pull rod, combining a push rod and a thread locker to achieve puncture from the lower surface of the rotator cuff to the upper surface, and a needle is released from the upper surface, so as to facilitate the clamping of sutures.
It improves the suture effect, reduces the difficulty of suture, improves the surgical efficiency, and facilitates medical staff to operate.
Smart Images
Figure CN120345941A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and particularly relates to a rotator cuff reverse suture device. Background Art
[0002] During rotator cuff tear surgery, a conventional suture device sutures from the upper surface of the rotator cuff to the lower surface, making it difficult to control the needle exit point and resulting in poor suture effects. Moreover, since the lower surface of the rotator cuff is tightly attached to the humeral head with extremely limited space, it is difficult to find the suture thread sent by the forward suture device on the lower surface of the rotator cuff, causing difficulties in the surgery. To solve this problem, the present application proposes a rotator cuff reverse suture device to change the current situation of rotator cuff suturing. Summary of the Invention
[0003] The main purpose of the present invention is to provide a rotator cuff reverse suture device, which can effectively solve the problems in the background art.
[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a rotator cuff reverse suture device, including a housing, a puncture needle, and a wire pushing rod. The housing is a hollow structure, the wire pushing rod is arranged inside the housing, the puncture needle is an arc-shaped structure and is rotatably connected to one end of the housing. An adjusting block is movably connected to the housing, a pull rod is connected to the puncture needle, and the pull rod is threadedly connected to the adjusting block. The puncture needle is pulled by the pull rod to be tightly fixed against the housing.
[0005] Preferably, an installation sleeve is arranged on the puncture needle. A first step groove and a second step groove are sequentially arranged inside the installation sleeve. The end of the housing extends from the second step groove into the first step groove and abuts against the first step groove.
[0006] Preferably, a first rotating member is arranged between the second step groove and the housing.
[0007] Preferably, a middle through hole is arranged on the adjusting block, and the middle through hole is connected to the housing through a second rotating member.
[0008] Preferably, the first rotating member and the second rotating member are bushings or bearings.
[0009] Preferably, a threaded sleeve is movably connected to the adjusting block, and the pull rod passes through the threaded sleeve and is threadedly connected to the threaded sleeve.
[0010] Preferably, a limiting protrusion is arranged at one end of the threaded sleeve, and a rotating handle is arranged at the other end of the limiting sleeve.
[0011] Preferably, a notch groove is arranged at one end of the wire pushing rod.
[0012] Preferably, a wire winding disc is installed at the other end of the wire pushing rod, and a wire locking device is fixedly connected to one side of the wire pushing rod.
[0013] Preferably, a handle sleeve is fixedly connected to the outer side of the housing.
[0014] Compared with the traditional technology, the beneficial effects of the present invention are as follows: By rotatably connecting a puncture needle with an arc-shaped structure at one end of the housing, the puncture can be performed from the lower surface to the upper surface of the rotator cuff, and the puncture needle is rotatably arranged, which is convenient for controlling the needle entry point and the needle exit point, the suture effect is good, and the needle exits from the upper surface of the rotator cuff, which is convenient for clamping the suture thread, reducing the suture difficulty, providing convenience for the operation, facilitating the operation of medical staff, and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;
[0016] Figure 2 is a schematic diagram of the puncture needle structure of the present invention;
[0017] Figure 3 is a schematic diagram of a partial structure of the present invention;
[0018] Figure 4 is a schematic diagram of the adjusting block structure of the present invention.
[0019] In the figure: 1, housing; 2, puncture needle; 3, wire pushing rod; 31, notch groove; 32, wire winding disc; 33, wire locking device; 4, adjusting block; 41, middle through hole; 42, second rotating part; 43, threaded sleeve; 44, limiting protrusion; 45, rotating handle; 5, pull rod; 6, handle sleeve; 7, mounting sleeve; 71, first-stage stepped groove; 72, second-stage stepped groove; 73, first rotating part. DETAILED DESCRIPTION OF THE INVENTION
[0020] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0021] As Figures 1-4 shown, a rotator cuff reverse suture device is provided, including a housing 1, a puncture needle 2 and a wire pushing rod 3. The housing 1 is a hollow structure and has a linear structure. The wire pushing rod 3 is arranged inside the housing 1 so that the wire pushing rod 3 can slide inside the housing 1. The wire pushing rod 3 is made of deformable stainless steel. The puncture needle 2 is an arc-shaped structure and is rotatably connected to one end of the housing 1. An adjusting block 4 is movably connected to the housing 1. A pull rod 5 is connected to the puncture needle 2. The pull rod 5 is threadedly connected to the adjusting block 4. The puncture needle 2 is pulled by the pull rod 5 to make the puncture needle 2 closely fixed to the housing 1. A handle sleeve 6 is fixedly connected to the outer side of the housing 1.
[0022] An installation sleeve 7 is provided on the puncture needle 2. A first stepped groove 71 and a second stepped groove 72 are sequentially arranged in the installation sleeve 7. The end of the outer shell 1 extends into the first stepped groove 71 from the second stepped groove 72 and abuts against the first stepped groove 71. A first rotating member 73 is arranged between the second stepped groove 72 and the outer shell 1. The puncture needle 2 is installed at the front end of the outer shell 1 through the installation sleeve 7, and the puncture needle 2 can rotate around the outer shell 1 by means of the first rotating member 73, which is convenient for adjusting the puncture angle and the position of the puncture point.
[0023] A middle through hole 41 is provided on the adjusting block 4. The middle through hole 41 is connected to the outer shell 1 through a second rotating member 42, so that the adjusting block 4 can rotate around the outer shell 1.
[0024] In this example, the first rotating member 73 and the second rotating member 42 are bushings or bearings, preferably bearing structures, which are convenient for rotational adjustment.
[0025] A threaded sleeve 43 is movably connected to the adjusting block 4. A pull rod 5 passes through the threaded sleeve 43 and is threadedly connected to the threaded sleeve 43. A limit protrusion 44 is provided at one end of the threaded sleeve 43, and a rotating handle 45 is provided at the other end of the limit sleeve. The rotating handle 45 is a nut structure. The cooperation between the rotating handle 45 and the limit protrusion 44 axially limits and installs the threaded sleeve 43 on the adjusting block 4. By rotating the threaded sleeve 43, the position of the pull rod 5 is adjusted, so as to pull the puncture needle 2 by means of the pull rod 5, so that the puncture needle 2 is tightly attached to the outer shell 1, thereby fixing the puncture needle 2. At the same time, the function of the pull rod 5 can also prevent the adjusting block 4 from rotating relative to the outer shell 1, ensuring the stability of the puncture.
[0026] A notch groove 31 is provided at one end of the wire pushing rod 3, so that the suture is firmly fixed on the wire pushing rod 3. A wire winding disc 32 is installed at the other end of the wire pushing rod 3, and a wire locking device 33 is fixedly connected to one side of the wire pushing rod 3, so that the end of the suture is firmly wound on the wire winding disc 32 and fixed by the wire locking device 33.
[0027] The working principle is as follows: By rotatably connecting the puncture needle 2 with an arc-shaped structure at one end of the outer shell 1, it can puncture from the lower surface to the upper surface of the rotator cuff. Moreover, the puncture needle 2 is rotatably arranged, which is convenient for controlling the needle entry point and the needle exit point, and has a good suture effect. And the needle exits from the upper surface of the rotator cuff, which is convenient for clamping the suture, reduces the suture difficulty, provides convenience for the operation, is convenient for medical staff to operate, and improves the operation efficiency.
[0028] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above description is illustrative in nature and should not be construed as a limitation on the scope of the claims of the present invention.
Claims
1. A rotator cuff reverse suture device, comprising a housing, a puncture needle and a wire pusher, characterized in that: The outer shell is of a hollow structure. The wire pushing rod is arranged inside the outer shell. The puncture needle is of an arc-shaped structure and is rotatably connected to one end of the outer shell. An adjusting block is movably connected to the outer shell. A pull rod is connected to the puncture needle, and the pull rod is threadedly connected to the adjusting block. The puncture needle is pulled by the pull rod to be tightly fixed against the outer shell.
2. The rotator cuff reverse suture apparatus according to claim 1, wherein: An installation sleeve is arranged on the puncture needle. A first stepped groove and a second stepped groove are sequentially arranged inside the installation sleeve. The end of the outer shell extends into the first stepped groove from the second stepped groove and abuts against the first stepped groove.
3. The rotator cuff reverse suture apparatus according to claim 2, wherein: A first rotating member is arranged between the second stepped groove and the outer shell.
4. The rotator cuff reverse suture instrument according to claim 3, wherein: A middle through hole is arranged on the adjusting block, and the middle through hole is connected to the outer shell through a second rotating member.
5. The rotator cuff reverse suture apparatus according to claim 4, wherein: The first rotating member and the second rotating member are bushings or bearings.
6. The rotator cuff reverse suture instrument according to claim 1, characterized in that: A threaded sleeve is movably connected to the adjusting block. The pull rod passes through the threaded sleeve and is threadedly connected to the threaded sleeve.
7. The rotator cuff reverse suture apparatus according to claim 6, wherein: A limiting protrusion is arranged at one end of the threaded sleeve, and a rotating handle is arranged at the other end of the limiting sleeve.
8. The rotator cuff reverse suture apparatus according to claim 1, wherein: A notch groove is arranged at one end of the wire pushing rod.
9. The rotator cuff reverse suture instrument according to claim 8, wherein: A wire winding disc is installed at the other end of the wire pushing rod, and a wire locking device is fixedly connected to one side of the wire pushing rod.
10. The rotator cuff reverse suture instrument according to claim 1, wherein: A handle sleeve is fixedly connected to the outer side of the outer shell.