Disposable crochet needle with scales for tenosynovitis treatment
By setting scale lines and limit blocks on the crochet hook assembly, the problems of existing crochet hooks being inconvenient for precise depth insertion and storage are solved, achieving depth control and improved stability, and enhancing safety and convenience of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU MUNICIPAL HOSPITAL
- Filing Date
- 2025-01-16
- Publication Date
- 2026-05-08
AI Technical Summary
Existing disposable crochet hooks are not convenient for precise control of the depth of insertion during use, and are not easy to store, which can easily cause skin damage and contamination to patients.
A graduated crochet hook assembly was designed, including a handle, a filler bar, a base block, a marker plate, a fixing block, and a hook body. Through the cooperation of the graduated lines and the limiting block, the precise depth control of the hook body is achieved and the stability is improved, while also making it easy to store.
It achieves precise control of the crochet depth, avoiding skin damage and contamination for patients, and improving safety and stability in use.
Smart Images

Figure CN224206867U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disposable crochet hooks, specifically a disposable crochet hook with graduations for the treatment of tenosynovitis. Background Technology
[0002] Tenosynovitis is a chronic, aseptic inflammatory reaction of the tendon sheath, the outer covering of the tendon, caused by mechanical friction. This type of condition is usually classified as repetitive strain injury. Tenosynovitis is common clinically and can occur at any age, but is particularly prevalent in middle-aged women. To facilitate the treatment of tenosynovitis, disposable hook needles are needed. The "Disposable Hook Needle for Treating Tenosynovitis" disclosed in application number "CN202023013933.4" represents an increasingly mature technology. This invention, by setting up a hook needle body, mounting base, connecting rod, and handle, utilizes a disposable, integrated structure for easy disassembly and assembly. "It can be used directly, thus avoiding the cumbersome steps required for using the device, thereby improving the convenience of using the device." However, the hook still has the following defects during use: The integrated structure of the hook body, mounting base and connecting rod does improve the convenience of use, but the disposable hook is inconvenient to store before use. Therefore, it is necessary to provide a disposable hook that is easy to store, avoids surface contamination and improves safety. In addition, the accuracy and stability of the hook structure when penetrating the tendon sheath are not significant enough. Therefore, it is necessary to provide a disposable hook that can accurately control the depth of the hook penetrating the tendon sheath, avoid damage to the patient's skin when withdrawing the needle, and improve stability. Utility Model Content
[0003] This invention provides a graduated disposable hook for treating tenosynovitis, aiming to solve the problems of existing disposable hooks being inconvenient for precise control of hook depth and for easy storage.
[0004] To achieve the above objectives, this utility model provides a graduated disposable hook for the treatment of tenosynovitis, including a hook assembly;
[0005] The crochet hook assembly includes a handle, a filler rod inserted inside the handle, a first placement groove on the surface of the filler rod, a base block rotatably connected inside the first placement groove, a marker piece fixedly connected to the upper end of the base block, a fixing block fixedly connected to the upper end of the marker piece, a crochet hook body fixedly mounted on the upper end of the fixing block, scale lines engraved on the surface of the crochet hook body, and a second placement groove on the surface of the handle.
[0006] As a preferred embodiment of this utility model, the upper end of the filling rod is provided with a first hinge hole, the bottom block is fixedly connected with a hinge shaft, and the inner walls of the second placement groove on the surface of the grip rod are provided with second hinge holes on both sides. The hinge shaft passes through the first hinge hole and is rotatably connected to the inside of the second hinge hole.
[0007] As a preferred embodiment of this utility model, a limiting block is engaged inside the first placement groove and the second placement groove, and a limiting groove is formed on the surface of the limiting block.
[0008] In a preferred embodiment of this utility model, the base block, the marking plate, the fixing block, and the hook body all fit into the first placement groove and the second placement groove.
[0009] As a preferred embodiment of this utility model, the hook body is made of stainless steel.
[0010] In a preferred embodiment of this invention, the filling rod is made of sponge.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. When storing disposable hooks, firstly control the bottom block of the hook body to rotate 180° around the hinge axis, so that the bottom block, the label, the fixing block and the hook body can rotate through the second placement slot and enter the first placement slot. Then, the limiting block is locked into the second placement slot. Compared with the disposable hook in the prior art "A disposable hook for treating tenosynovitis", this utility model can facilitate the storage of the hook body and avoid contamination through the above-mentioned structure, thereby improving the safety of use.
[0013] 2. In use, first control the hook body to rotate 180° around the hinge axis to exit from the first and second placement slots and be parallel to the handle. Then, engage the limiting block in the second placement slot. Next, insert the hook body into the patient's tendon sheath for treatment. The limiting block further improves the stability of the hook body. At this time, the scale lines on the side surface of the hook body allow the user to accurately judge how much of the hook body is inside the skin, thus avoiding the possibility of the user scratching the skin when withdrawing the needle. This facilitates precise control of the depth of the hook body. Compared with the disposable hook structure in the existing technology "A disposable hook for treating tenosynovitis", this utility model, through the cooperation of the above structures, not only improves stability but also allows for precise control of the depth of the hook body, avoiding damage to the patient's skin, thereby enhancing the practicality of the disposable hook. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a rear view of the disposable crochet hook storage structure of this utility model.
[0016] Figure 3 This is a schematic diagram of the disposable crochet hook storage structure of this utility model;
[0017] Figure 4 This is a disassembled diagram of the crochet hook assembly structure of this utility model;
[0018] Figure 5 This is an anatomical diagram of the grip structure of this utility model;
[0019] Figure 6 This is a schematic diagram of the hook body structure of this utility model.
[0020] In the diagram: 100, crochet hook assembly; 101, handle; 102, filler rod; 103, first placement slot; 104, base block; 105, marker piece; 106, fixing block; 107, crochet hook body; 108, scale line; 109, second placement slot;
[0021] 111. First hinge hole; 112. Hinge shaft; 113. Second hinge hole;
[0022] 121. Limiting block; 122. Limiting groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0024] Please see Figure 1 - Figure 6 This utility model provides a disposable hook for treating tenosynovitis with graduations, including a hook assembly 100;
[0025] The crochet hook assembly 100 includes a handle 101, a filler rod 102 inserted inside the handle 101, a first placement groove 103 on the surface of the filler rod 102, a base block 104 rotatably connected inside the first placement groove 103, an indicator piece 105 fixedly connected to the upper end of the base block 104, a fixing block 106 fixedly connected to the upper end of the indicator piece 105, a crochet hook body 107 fixedly mounted on the upper end of the fixing block 106, scale lines 108 engraved on the surface of the crochet hook body 107, and a second placement groove 109 on the surface of the handle 101.
[0026] In one specific embodiment, the hook assembly 100 not only facilitates the storage of the hook body 107, preventing contamination and improving safety, but also enhances the stability of the hook body 107 through the interaction of the above structures. Furthermore, it allows for precise control of the depth of the hook body 107 into the tendon sheath, preventing skin slippage during hook removal and thus improving the practicality of disposable hooks. During storage, the hook body 107 is first rotated around the hinge axis 112, passing through the second placement slot 109 and the first placement slot 103. This allows for the storage of the base block 104, the marker piece 105, the fixing block 106, and the hook body 107. In use, the hook body 107 is rotated out of the first placement slot 103, and then the limiting block 121 is engaged in the second placement slot 109 to limit the hook body 107 and improve its stability. Then, the hook body 107 is inserted into the tendon sheath. The presence of the scale line 108 allows the user to accurately determine how much of the hook body 107 is inside when it is under the skin, thus avoiding the possibility of the user scratching the skin when withdrawing the hook, thereby enhancing the practicality of the disposable hook.
[0027] Please see Figure 3 - Figure 6 The upper end of the filling rod 102 is provided with a first hinge hole 111, and the bottom block 104 is fixedly connected with a hinge shaft 112. The inner walls of the second placement groove 109 on the surface of the grip rod 101 are provided with second hinge holes 113 on both sides. The hinge shaft 112 passes through the first hinge hole 111 and is rotatably connected inside the second hinge hole 113.
[0028] In one specific embodiment, the hinge shaft 112 is hinged inside the first hinge hole 111 and the second hinge hole 113, which facilitates the control of the rotation of the hook body 107 and improves the convenience of storing or using the hook body 107.
[0029] Please see Figure 3 - Figure 6 The first placement groove 103 and the second placement groove 109 are internally engaged with a limiting block 121, and a limiting groove 122 is formed on the surface of the limiting block 121.
[0030] In one specific embodiment, the limiting block 121 is engaged inside the second placement groove 109 and works in conjunction with the limiting groove 122 to limit the bottom block 104, thereby improving the stability of use.
[0031] Please see Figure 3 - Figure 6 The base block 104, the label plate 105, the fixing block 106, and the hook body 107 all fit into the first placement groove 103 and the second placement groove 109.
[0032] In one specific embodiment, the first placement slot 103 can stably store the base block 104, the label piece 105, the fixing block 106, and the hook body 107, thereby improving storage convenience.
[0033] Please see Figure 3 - Figure 6 The crochet hook body 107 is made of stainless steel.
[0034] In one specific embodiment, the hook body 107 made of stainless steel can prevent rust and improve safety during use.
[0035] Please see Figure 3 - Figure 6 The filling rod (102) is made of sponge.
[0036] In one specific embodiment, the sponge-filled rod 102 can improve the protection of the hook body 107.
[0037] Working principle: During storage, the hook body 107 is first controlled to rotate around the hinge shaft 112, thereby controlling the hook body 107 to pass through the second placement slot 109 and the first placement slot 103, thus storing the base block 104, the marker piece 105, the fixing block 106, and the hook body 107. When using the hook body 107, the hook body 107 is first rotated out of the first placement slot 103, and then the limiting block 121 is engaged inside the second placement slot 109 to limit the hook body 107 and improve the stability of use. Finally, the hook body 107 is inserted into the tendon sheath. The presence of the scale line 108 can accurately control the depth of the hook body 107 into the tendon sheath, thereby determining how much of the hook body 107 is left outside, thus avoiding damage to the patient's skin when the needle is withdrawn, thereby enhancing the practicality of the disposable hook.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A graduated disposable hook for treating tenosynovitis, characterized in that, include: A crochet hook assembly (100) includes a handle (101), a filler rod (102) inserted inside the handle (101), a first placement groove (103) on the surface of the filler rod (102), a base block (104) rotatably connected inside the first placement groove (103), a marker piece (105) fixedly connected to the upper end of the base block (104), a fixing block (106) fixedly connected to the upper end of the marker piece (105), a crochet hook body (107) fixedly mounted on the upper end of the fixing block (106), a scale line (108) engraved on the surface of the crochet hook body (107), and a second placement groove (109) on the surface of the handle (101).
2. A graduated disposable hook for treating tenosynovitis according to claim 1, characterized in that: The upper end of the filling rod (102) is provided with a first hinge hole (111), and the bottom block (104) is fixedly connected with a hinge shaft (112). The inner walls of the second placement groove (109) on the surface of the grip (101) are provided with second hinge holes (113). The hinge shaft (112) passes through the first hinge hole (111) and is rotatably connected inside the second hinge hole (113).
3. A graduated disposable hook for treating tenosynovitis according to claim 1, characterized in that: The first placement slot (103) and the second placement slot (109) are internally engaged with a limiting block (121), and a limiting groove (122) is formed on the surface of the limiting block (121).
4. A graduated disposable hook for treating tenosynovitis according to claim 1, characterized in that: The base block (104), the label plate (105), the fixing block (106), and the hook body (107) all fit into the first placement slot (103) and the second placement slot (109).
5. A graduated disposable hook for treating tenosynovitis according to claim 1, characterized in that: The hook body (107) is made of stainless steel.
6. A graduated disposable hook for treating tenosynovitis according to claim 4, characterized in that: The filler rod (102) is made of sponge.
Citation Information
Patent Citations
Disposable bearded needle for treating tenosynovitis
CN214434397U