Connection device for a spinal column traction device and spinal column traction device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PEKING UNIVERSITY FIRST HOSPITAL (PEKING UNIVERSITY FIRST CLINICAL MEDICAL COLLEGE)
- Filing Date
- 2025-01-24
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]有鉴于此,本实用新型的目的在于提供一种用于脊柱牵引装置的连接装置和脊柱牵引装置,用以解决现有技术中连接装置无法精确调节长度、连接强度不足等问题
[0015] Compared with existing technologies, this utility model has beneficial effects. By combining two fixing parts, a connecting tube, a telescopic tube, and bolts, the adjustment of the connecting device becomes more flexible and convenient. The slots on the fixing parts are used to connect the traction rods of the spinal traction device. The connecting tube and the telescopic tube are respectively connected to the fixing parts. The bolts connect through the first through hole of the connecting tube and the threaded hole on the telescopic tube, thus firmly fixing the connecting tube and the telescopic tube together. This connection method allows the telescopic tube to extend and retract flexibly while maintaining a fixed connection. It can be adjusted according to different user needs and the required distance between the traction rods, improving the connection strength, applicability, and flexible adjustability of the connecting device.
Smart Images

Figure CN224598307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a connecting device for a spinal traction device and a spinal traction device. Background Technology
[0002] Currently, existing spinal traction devices are mainly used to treat spinal cord injuries, cervical spondylosis, and other diseases, providing fixation and traction for the cervical spine and head. They typically consist of a cephalopelvic ring and traction rods, with the traction effect achieved by adjusting the tension of the traction rods. However, existing connecting devices have some shortcomings in adjusting the traction rods. Some devices use simple snap-fit or clamping structures, resulting in insufficient connection strength, making them prone to loosening or falling off, affecting the stability of the traction effect; operation is relatively complex, requiring considerable time and effort to adjust the tension of the traction rods; and the adjustment precision is insufficient, unable to accurately adjust the distance between the traction rods. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a connecting device and a spinal traction device for use in a spinal traction device, so as to solve the problems of the inability to accurately adjust the length and insufficient connection strength of the connecting device in the prior art.
[0004] To achieve the above objectives, one embodiment of the present invention provides a connecting device for a spinal traction device.
[0005] To achieve the above objectives, another embodiment of the present invention provides a spinal traction device.
[0006] A connecting device for a spinal traction device according to an embodiment of the present invention includes two fixing members, a connecting tube, a telescopic tube, and a bolt. The two fixing members are provided with slots for connecting the traction rod of the spinal traction device. One end of the connecting tube is located on one side of one fixing member, and the other end of the connecting tube is provided with an opening and a first through hole. One end of the telescopic tube is located on one side of the other fixing member, and the telescopic tube is provided with a threaded hole. The other end of the telescopic tube extends into the opening of the connecting tube. The bolt connects the connecting tube and the telescopic tube through the first through hole and the threaded hole to achieve fixation.
[0007] In one embodiment, the telescopic tube is a solid tube, with a threaded hole penetrating through it.
[0008] In one embodiment, the telescopic tube has multiple threaded holes arranged at equal intervals.
[0009] In one embodiment, the connecting device further includes a nut disposed at the end of the bolt, which can further secure the connecting pipe and the telescopic pipe.
[0010] In one embodiment, the position of the first through hole to accommodate the head of the bolt can be designed as a countersunk hole, and the type of countersunk hole can be a cylindrical countersunk hole, a tapered countersunk hole, or a countersunk hole.
[0011] In one embodiment, the fastener has a second through hole and a threaded connector, the threaded connector being able to pass through the second through hole to fix the fastener.
[0012] In one embodiment, the two fasteners, the connecting tube, and the telescopic tube can be made of metal or composite materials.
[0013] In one embodiment, the first through hole can be designed as an elongated slot-shaped hole.
[0014] The spinal traction device according to an embodiment of the present invention includes a connecting device for the spinal traction device, wherein the connecting device is the connecting device described in any of the above embodiments.
[0015] Compared with existing technologies, this utility model has beneficial effects. By combining two fixing parts, a connecting tube, a telescopic tube, and bolts, the adjustment of the connecting device becomes more flexible and convenient. The slots on the fixing parts are used to connect the traction rods of the spinal traction device. The connecting tube and the telescopic tube are respectively connected to the fixing parts. The bolts connect through the first through hole of the connecting tube and the threaded hole on the telescopic tube, thus firmly fixing the connecting tube and the telescopic tube together. This connection method allows the telescopic tube to extend and retract flexibly while maintaining a fixed connection. It can be adjusted according to different user needs and the required distance between the traction rods, improving the connection strength, applicability, and flexible adjustability of the connecting device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a connection device for a spinal traction device according to an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of a connecting pipe according to an embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of a telescopic tube according to an embodiment of the present utility model.
[0019] Figure 4 This is a schematic diagram of a spinal traction device according to an embodiment of the present invention.
[0020] Figure Labels
[0021] Device 100, fastener 10, threaded connector 11, second through hole 12, slot 13, connecting pipe 20, bolt 21, first through hole 22, nut 23, telescopic pipe 30, threaded hole 31. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to specific implementation schemes. However, those skilled in the art should understand that the implementation schemes described below are only for illustrating this utility model and should not be regarded as limiting the scope of this utility model. Based on the implementation schemes in this utility model, all other implementation schemes obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. All structural contents mentioned in the following embodiments are with reference to the accompanying drawings.
[0024] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.
[0025] Example 1, such as Figure 1 As shown, a connecting device 100 for a spinal traction device includes two fixing members 10, a connecting tube 20, a telescopic tube 30, and a bolt 21. The two fixing members 10 are provided with slots 13 for connecting the traction rod of the spinal traction device. One end of the connecting tube 20 is located on one side of one fixing member 10, and the other end of the connecting tube 20 is provided with an opening. The connecting tube 20 is provided with a first through hole 22. One end of the telescopic tube 30 is located on one side of the other fixing member 10. The telescopic tube 30 is provided with a threaded hole 31, and the other end of the telescopic tube 30 extends into the opening of the connecting tube 20. The bolt 21 connects the connecting tube 20 and the telescopic tube 30 through the first through hole 22 and the threaded hole 31 to achieve fixation.
[0026] Example 2, as Figure 1 As shown, based on Embodiment 1, the telescopic tube 30 is a solid tube, and the threaded hole 31 penetrates the telescopic tube 30. The telescopic tube 30 has multiple threaded holes 31 arranged at equal intervals. The multiple threaded holes 31 allow the telescopic tube 30 to adjust to a wider range of lengths. When the telescopic tube 30 needs to be longer, the end face of the threaded hole 31 can be connected to be longer, thereby increasing the length of the telescopic tube 30. When the telescopic tube 30 needs to be shorter, the end face of the threaded hole 31 can be connected to be shorter, thereby reducing the length of the telescopic tube 30.
[0027] Based on the above embodiments, the connecting device 100 further includes a nut 23, which is disposed at the end of the bolt 21 and can further fix the connecting pipe 20 and the telescopic pipe 30, thereby improving the connection strength.
[0028] Based on the above embodiments, the first through hole 22 can be designed as an elongated groove-shaped hole, and the position of the telescopic tube 30 can be fixed according to the required precise adjustment, thereby achieving precise control of the distance between the two fixing members 10.
[0029] The first through hole 22, which accommodates the head of the bolt 21, can be designed as a countersunk hole. The countersunk hole can be cylindrical, tapered, or recessed. By designing a countersunk hole in the first through hole 22 and embedding the head of the bolt 21 within it, the head of the bolt 21 is effectively hidden, resulting in a cleaner and more aesthetically pleasing appearance. This also improves user comfort and prevents direct contact between the bolt head and the user, reducing the risk of scratches or impacts. The countersunk hole type can be cylindrical, tapered, or recessed; the specific choice depends on the actual design requirements. Concealing the head of the bolt 21 within the first through hole 22 achieves both aesthetic appeal and enhanced user safety and comfort.
[0030] Based on the above embodiments, the fastener 10 is provided with a second through hole 12 and a threaded connector 11. The threaded connector 11 can pass through the second through hole 12 to fix the fastener 10, thereby achieving a more stable and reliable connection of the fastener 10.
[0031] During use, connection and adjustment are achieved through two fixing parts 10, connecting tube 20, telescopic tube 30, and bolt 21. Bolt 21 passes through connecting tube 20 and telescopic tube 30 and is fixed by nut 23, ensuring the stability of the connection. Telescopic tube 30 can be fixed to connecting tube 20 by adjusting the position of threaded hole 31, achieving more precise and flexible telescopic adjustment to meet the adjustment distance required by different users. The first through hole 22 is designed as a countersunk hole, hiding the head of bolt 21 within it, which not only improves the appearance but also avoids direct contact between the user and the head of bolt 21, ensuring safety and comfort during use. In addition, the second through hole 12 and threaded connector 11 on fixing part 10 further strengthen the connection between fixing part 10 and the traction rod of the spinal traction device, making the connection more stable and reliable. The two fixing parts 10, connecting tube 20, and telescopic tube 30 can also be made of metal or composite materials. The connecting tube 20 and telescopic tube 30 made of metal or composite materials have excellent connection rigidity, ensuring connection stability while also having a certain degree of flexibility.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0036] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A connecting device for a spinal traction device, characterized in that, The connecting device includes: Two fasteners are provided, and the two fasteners are provided with slots for connecting the traction rod of the spinal traction device. A connecting pipe, one end of which is disposed on one side of a fixing member, and the other end of which is provided with an opening, and a first through hole is provided on the connecting pipe; A telescopic tube, one end of which is disposed on one side of another fixing member, has a threaded hole on the telescopic tube, and the other end of the telescopic tube extends into the opening of the connecting tube; and A bolt is used to fix the connecting pipe and the telescopic pipe by connecting them through the first through hole and the threaded hole.
2. The connecting device according to claim 1, characterized in that, The telescopic tube is a solid tube, and the threaded hole penetrates the telescopic tube.
3. The connecting device according to claim 2, characterized in that, The telescopic tube has multiple threaded holes that are arranged at equal intervals.
4. The connecting device according to claim 2, characterized in that, It also includes a nut, which is located at the end of the bolt and can further secure the connecting pipe and the telescopic pipe.
5. The connecting device according to claim 1, characterized in that, The first through hole can be designed as a countersunk hole to accommodate the head of the bolt. The type of countersunk hole can be a cylindrical countersunk hole, a tapered countersunk hole, or a countersunk hole.
6. The connecting device according to claim 1, characterized in that, The fastener has a second through hole and a threaded connector, and the threaded connector can pass through the second through hole to fix the fastener.
7. The connecting device according to claim 1, characterized in that, The two fasteners, the connecting tube, and the telescopic tube can be made of metal or composite materials.
8. The connecting device according to claim 2, characterized in that, The first through hole can be designed as a long slot-shaped hole.
9. A spinal traction device, characterized in that, include: The connecting device according to any one of claims 1-8.