Sternum ligation band tightening device
By designing a sternal ligament tightening device that includes a binding strap, ratchet, and ratchet structure, the problem of loosening of existing sternal ligaments has been solved, achieving a stable fixation effect and a convenient user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-03
AI Technical Summary
Existing sternal ligaments are prone to loosening during use, resulting in poor recovery outcomes.
A sternal ligament tightening device including a tightening unit was designed. It utilizes a ligament, ratchet and ratchet structure, combined with Velcro fastening, and tightens and locks the ligament by rotating the component to ensure the stability of the fixation force.
It improves the tightening effect of the sternal ligation band, reduces the occurrence of loosening, facilitates the use and adjustment of the device, and meets the fixation needs of different patients.
Smart Images

Figure CN224070654U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a sternal ligament tightening device. Background Technology
[0002] A sternal ligature is a device used to aid in recovery. In cases of chest injury, especially sternal fracture, a sternal ligature is used to help fix the fracture site. It is mostly placed at the chest to provide stability and reduce displacement, thus facilitating the healing of the two free sides of the sternum. However, most current sternal ligatures use straps or Velcro for binding, which are prone to loosening during use, resulting in poor recovery. Utility Model Content
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0004] In view of the problems existing in the above-mentioned sternal ligation band tightening device, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a sternal ligament tightening device, which solves the problem that "most current sternal ligaments use binding straps for binding or Velcro, which are prone to loosening during use, resulting in poor recovery effect".
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sternal ligament tightening device, comprising:
[0007] The tightening unit includes a restraint strap, one end of which is fixedly connected to a storage box. The outer surface of one side of the storage box has multiple through slots. A winding post is rotatably connected inside the storage box. Both ends of the winding post are fixedly connected to ratchet wheels, and the outer surfaces of the ratchet wheels are provided with ratchet teeth. A rotating component is provided at the upper end of the winding post, and a connecting strap is fixedly connected to the middle of the outer surface of the winding post.
[0008] In a preferred embodiment of the sternal ligation band tightening device of this utility model, a torsion spring column is fixedly connected inside the ratchet, the outer surface of the torsion spring column is rotatably connected to the inside of the through groove, and one end of the ratchet extends to the outer surface of the storage box and is fixedly connected to an adjustment plate.
[0009] In a preferred embodiment of the sternal ligation band tightening device of this utility model, the plurality of ratchet wheels and ratchet teeth are symmetrically arranged, the two ends of the adjusting plate are respectively fixedly connected to one end of the two ratchet teeth, and the adjusting plate is disposed on the outer surface of the storage box.
[0010] In a preferred embodiment of the sternal ligation band tightening device of this utility model, a hook and loop fastener is fixedly connected to one outer surface of the connecting band, and a hook and loop fastener is fixedly connected to the other outer surface of the binding band, with the hook and loop fastener attached to the outer surface of the hook and loop fastener.
[0011] In a preferred embodiment of the sternal ligation band tightening device of this utility model, the rotating component includes a driven bevel gear, the interior of which is fixedly connected to the outer surface of the winding column, the outer surface of which is meshed with a driving bevel gear, one end of which is fixedly connected to a transmission rod, the outer surface of which is rotatably connected to the interior of the storage box, and one end of which is fixedly connected to a rotating handle.
[0012] In a preferred embodiment of the sternal ligation band tightening device of the present invention, a plurality of pull rings are fixedly connected to the front outer surface of the binding band, and a plurality of heat dissipation holes are provided on the outer surface of the binding band.
[0013] The beneficial effects of this utility model are:
[0014] The restraint strap is secured by a connecting strap and Velcro, and then the restraint strap is wound around the wrapping device by a rotating component, which can tighten the restraint strap at the same time. The ratchet and ratchet teeth lock the restraint strap, thereby improving the tightening effect and reducing the occurrence of loosening, while also making the device easy to use. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of 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. Among them:
[0016] Figure 1 This is a perspective view of a sternal ligament tightening device proposed in this utility model;
[0017] Figure 2 for Figure 1 A diagram of a storage box;
[0018] Figure 3 for Figure 1 Enlarged view of point A;
[0019] Figure 4 for Figure 1 Enlarged view of point B.
[0020] In the diagram: 100, tightening unit; 101, restraint strap; 102, storage box; 103, through slot; 104, winding post; 105, ratchet; 106, ratchet tooth; 107, torsion spring post; 108, rotating assembly; 108a, driven bevel gear; 108b, driving bevel gear; 108c, transmission rod; 108d, rotating handle; 109, adjusting plate; 110, connecting strap; 111, hook and loop fastener female side; 112, hook and loop fastener female side; 113, pulling ring. Detailed Implementation
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0025] Reference Figure 1-4 This utility model provides a sternal ligament tightening device, comprising:
[0026] The tightening unit 100 includes a restraint strap 101. One end of the restraint strap 101 is fixedly connected to a storage box 102. Multiple through slots 103 are formed on one outer surface of the storage box 102. A winding post 104 is rotatably connected inside the storage box 102. Ratchets 105 are fixedly connected to the outer surfaces of both ends of the winding post 104. The outer surfaces of the ratchet 105 are provided with ratchet teeth 106. A rotating assembly 108 is provided at the upper end of the winding post 104. A connecting strap 110 is fixedly connected to the middle of the outer surface of the winding post 104. A Velcro female surface 111 is fixedly connected to one outer surface of the connecting strap 110. A Velcro female surface 112 is fixedly connected to the outer surface of the other end of the restraint strap 101, and the Velcro female surface 112 is attached to the outer surface of the Velcro female surface 111. Multiple pull rings 113 are fixedly connected to the front outer surface of the restraint strap 101, and multiple heat dissipation holes are provided on the outer surface of the restraint strap 101. The winding post 104 is the core tightening mechanism of the restraint strap 101. By manually or mechanically rotating the winding post 104, the restraint strap 101 gradually winds and tightens. The design of the ratchet 105 and ratchet 106 provides a one-way anti-slip function, ensuring that the restraint strap 101 will not loosen due to external force after tightening, thereby ensuring the stability of the fixation force. The rotating component 108 provides a flexible operating method for the winding post 104, allowing medical staff to quickly adjust the tightness of the restraint strap 101 without the aid of other tools to meet the needs of different patients for sternal fixation. The combination of the Velcro mother side 111 and the Velcro daughter side 112 allows the restraint strap 101 to close quickly and maintain a tight fit, facilitating installation and disassembly. The pull ring 113 is designed on the front surface of the restraint strap 101, and the position of the restraint strap 101 can be manually adjusted or the tightening operation can be assisted by pulling these rings.
[0027] The ratchet 106 has a torsion spring post 107 fixedly connected inside, and the outer surface of the torsion spring post 107 is rotatably connected to the inside of the through groove 103. One end of the ratchet 106 extends to the outer surface of the storage box 102 and is fixedly connected to an adjusting plate 109. Multiple ratchets 105 and ratchet 106 are symmetrically arranged. The two ends of the adjusting plate 109 are respectively fixedly connected to one end of two ratchet 106, and the adjusting plate 109 is located on the outer surface of the storage box 102. The torsion spring post 107 maintains the relative position of the ratchet 106 and ratchet 105 through spring force, enhancing the overall locking stability. By manually operating the adjusting plate 109, medical personnel can quickly loosen or further tighten the restraint strap 101. The symmetrical arrangement of multiple ratchets 105 and ratchet 106 disperses the restraining force, ensuring that the restraint strap 101 does not deviate during wrapping, thereby avoiding localized pressure or uneven force application.
[0028] Furthermore, the rotating assembly 108 includes a driven bevel gear 108a, which is internally fixedly connected to the outer surface of the winding column 104. A driving bevel gear 108b is meshed with the outer surface of the driven bevel gear 108a. A transmission rod 108c is fixedly connected to one end of the driving bevel gear 108b. The outer surface of the transmission rod 108c is rotatably connected to the inside of the storage box 102. A rotating handle 108d is fixedly connected to one end of the transmission rod 108c. The driven bevel gear 108a is fixedly connected to the winding column 104, and its rotation drives the winding column 104, thereby tightening or releasing the restraint strap 101. The driving bevel gear 108b meshes with the driven bevel gear 108a, and the force required for manual operation is transmitted to the winding column 104 by rotating the transmission rod 108c, reducing the difficulty of operation for the user.
[0029] During use, the restraint strap 101 is first fixedly connected to one end of the connecting strap 110 via the Velcro front side 112 and the Velcro back side 111. Then, the drive bevel gear 108b is rotated by the rotating handle 108d, which in turn drives the winding post 104 to rotate through the driven bevel gear 108a, thereby tightening the restraint strap 101. At the same time, the winding post 104 can be fixed by the ratchet 105 and ratchet 106, keeping the position of the restraint strap 101 stable and adjustable. When disassembly is required, the adjusting plate 109 is moved to disengage the ratchet 106 from the ratchet 105, and then the pulling ring 113 is pulled to loosen the restraint strap 101, making the device easy to use.
[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A sternal lacing band tightening device, characterized by: Include: Tightening unit (100), including the restraint belt (101), one end of the restraint belt (101) is fixedly connected with the receiving box (102), a plurality of through slots (103) are arranged on one side of the outer surface of the receiving box (102), a winding column (104) is rotatably connected in the receiving box (102), a ratchet (105) is fixedly connected to the outer surface of both ends of the winding column (104), a ratchet (105) is arranged on the outer surface of the ratchet (105), a rotating assembly (108) is arranged on the upper end of the winding column (104), and a connecting belt (110) is fixedly connected to the outer surface of the middle of the winding column (104).
2. A sternal ligation band tightening device according to claim 1, wherein: The inner part of the ratchet (106) is fixedly connected with a torsion spring column (107), the outer surface of the torsion spring column (107) is rotatably connected in the through slot (103), one end of the ratchet (106) extends to the outer surface of the receiving box (102) and is fixedly connected with an adjusting plate (109).
3. A sternal ligation band tightening device according to claim 2, wherein: A plurality of ratchets (105) and ratchets (106) are symmetrically arranged, both ends of the adjusting plate (109) are fixedly connected with one end of the two ratchets (106), and the adjusting plate (109) is arranged on the outer surface of the receiving box (102).
4. A sternal cord tightening device according to claim 1, wherein: The outer surface of one side of the connecting belt (110) is fixedly connected with a magic tape female face (111), the outer surface of the other end of the restraint belt (101) is fixedly connected with a magic tape male face (112), and the magic tape male face (112) is attached to the outer surface of the magic tape female face (111).
5. A sternal cord tightening device according to claim 1, wherein: The rotating assembly (108) includes a driven bevel gear (108a), the inner part of the driven bevel gear (108a) is fixedly connected to the outer surface of the winding column (104), the outer surface of the driven bevel gear (108a) is meshingly connected with a driving bevel gear (108b), one end of the driving bevel gear (108b) is fixedly connected with a transmission rod (108c), the outer surface of the transmission rod (108c) is rotatably connected in the receiving box (102), and one end of the transmission rod (108c) is fixedly connected with a rotating handle (108d).
6. A sternal ligation band tightening device according to claim 1, wherein: The outer surface of the front side of the restraint belt (101) is fixedly connected with a plurality of pull rings (113), and the outer surface of the restraint belt (101) is provided with a plurality of heat dissipation holes.