Knee joint rehabilitation fixing device
By designing a knee rehabilitation fixture including an upper U-shaped plate, a lower U-shaped plate, a clamp assembly and an adjustable strap system, the problems of inconvenience and poor stability of traditional devices are solved, and flexible angle adjustment and comfortable wearing are achieved.
Patent Information
- Application Number
- CN202421575039.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-04
AI Technical Summary
Traditional knee rehabilitation fixtures have problems such as inconvenient wear and poor stability, and cannot meet the differences in knee fixation angles and adjustment needs at different stages of patients.
A knee rehabilitation fixture is designed including an upper U-shaped plate, a lower U-shaped plate, a splint assembly and an adjustable strap system. Through the design of the locking pin and positioning hole of the splint assembly, the angle adjustment of the knee joint rehabilitation fixture is achieved.
It realizes simple wearing of knee rehabilitation fixtures, improves the stability and comfort of the device, and can adjust the fixing angle according to the needs of the patient to meet the rehabilitation needs of different stages.
Smart Images
Figure CN222787956U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a knee joint rehabilitation fixing device, belonging to the technical field of medical equipment. Background Art
[0002] Knee rehabilitation fixation refers to stabilizing the knee joint through specific methods and tools to promote its recovery and prevent further injury. Rehabilitation fixation is usually suitable for the recovery period after knee surgery, the recovery period after acute injuries (such as ligament tears, meniscus injuries), and the treatment of chronic knee diseases (such as arthritis). Knee rehabilitation fixation devices play an important role in helping patients restore knee function and provide necessary stability. Traditional knee rehabilitation fixation devices have the defects of being inconvenient to wear and having poor stability. In addition, the fixation angles of the patient's knee joint vary, or need to be adjusted to different angles for fixation at different stages, and existing devices cannot meet this demand. Utility Model Content
[0003] Therefore, the purpose of the present invention is to provide a knee joint rehabilitation fixation device capable of adjusting the angle.
[0004] The cam is secured to the base of the knee by means of a U-shaped strap, which is adapted to engage the knee cap and place the knee cap in a position to engage with the support rail. The cam is secured to the base of the knee by means of a U-shaped strap, which is adapted to engage the knee cap. The cam is secured to the base of the knee by means of a U-shaped strap. The upper end of the side plate is provided with a lower meshing tooth that matches the upper meshing tooth; the clamping plate assembly includes a first clamping plate and a second clamping plate that can clamp the lower part of the upper side plate and the upper part of the lower side plate therebetween, the first clamping plate and the second clamping plate are connected by an upper shaft and a lower shaft, the upper shaft passes through the upper shaft hole on the upper side plate, and the lower shaft passes through the lower shaft hole on the lower side plate; a locking pin is also provided on one of the clamping plate assemblies, and a first pin hole and a second pin hole for inserting the locking pin are provided on the first clamping plate and the second clamping plate, and a plurality of positioning holes are provided on the upper side plate or the lower side plate, and the plurality of positioning holes are arranged along the circumference of the upper shaft hole or the lower shaft hole, and the locking pin can pass through the positioning holes.
[0005] An external threaded barrel coaxial with the first pin hole is arranged on the first clamping plate, an internal threaded barrel matching with the external threaded barrel is arranged on a knob, the external threaded barrel is screwed into the internal threaded barrel, and the locking pin is located on the axis of the internal threaded barrel and fixed to the knob.
[0006] The upper shaft or the lower shaft comprises a shaft cylinder portion and a bolt portion, a cap portion is arranged at one end of the shaft cylinder portion, an internal thread is arranged inside the shaft cylinder portion, and the bolt portion is threadedly connected to the shaft cylinder portion.
[0007] There are multiple upper straps and multiple lower straps.
[0008] The two ends of the upper binding belt and the lower binding belt are respectively connected to connecting ears, and the connecting ears are fixed to the upper U-shaped plate or the lower U-shaped plate.
[0009] An upper flexible pad and a lower flexible pad are respectively arranged on one side of the upper U-shaped plate and the lower U-shaped plate close to the patient's legs.
[0010] By adopting the above technical solution, the knee joint rehabilitation fixation device of the utility model has the following beneficial effects compared with the prior art:
[0011] 1. It can be fixed to the patient's thigh through the upper U-shaped plate and the upper strap, and it can be fixed to the patient's calf through the lower U-shaped plate and the lower strap, which is very easy to wear;
[0012] 2. The upper side plate and the lower side plate cooperate with each other through the upper meshing teeth and the lower meshing teeth, so that they can be synchronously folded or stretched relative to the splint assembly, and then the upper side plate or the lower side plate is locked with the splint assembly after the locking pin passes through the appropriate positioning hole, so that the upper U-shaped plate and the lower U-shaped plate can be locked and fixed in an appropriate posture at the same time, thereby realizing the angle adjustment of the knee joint rehabilitation fixation device;
[0013] 3. The overall structure of the knee joint rehabilitation fixation device of the utility model is relatively simple. The upper U-shaped plate, the lower U-shaped plate and the splint assembly are all made of metal, with high structural strength and small volume;
[0014] 4. The upper flexible pad and the lower flexible pad are in contact with the patient's legs, which can improve the comfort of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] Figure 2 It is a schematic diagram of the assembly structure decomposition of the upper U-shaped plate, the lower U-shaped plate and the clamping plate assembly.
[0017] Figure 3 for Figure 2 A partial enlarged view of part A.
[0018] Figure 4 for Figure 3 Schematic diagram from another angle.
[0019] Figure 5This is a reference diagram of the use status of the knee joint rehabilitation fixation device of the present invention. DETAILED DESCRIPTION
[0020] The present invention is further described in detail below through the accompanying drawings and specific implementation methods.
[0021] like Figure 1-5 As shown, the utility model provides a knee joint rehabilitation fixation device, including an upper U-shaped plate 1, a plurality of upper straps 2 arranged on the upper U-shaped plate 1, a lower U-shaped plate 3, a plurality of lower straps 4 arranged on the lower U-shaped plate 3, and two splint assemblies 5 for connecting the upper U-shaped plate 1 and the lower U-shaped plate 3.
[0022] The two ends of the upper strap 2 and the lower strap 4 are respectively connected to the connecting ears 6, and the connecting ears 6 are fixed on the upper U-shaped plate 1 or the lower U-shaped plate 3. The upper strap 2 and the lower strap 4 can be Velcro straps.
[0023] An upper flexible pad 7 and a lower flexible pad 8 are respectively arranged on one side of the upper U-shaped plate 1 and the lower U-shaped plate 3 close to the patient's legs. The upper flexible pad 7 and the lower flexible pad 8 can be sleeve-type, sleeved on the upper U-shaped plate 1 or the lower U-shaped plate 3, or can be a sheet material, bonded and fixed on the upper U-shaped plate 1 or the lower U-shaped plate 3.
[0024] The upper U-shaped plate 1 includes two upper side plates 11 for clamping on both sides of the thigh and an upper arc plate 12 that can be connected between the two upper side plates 11, and the upper arc plate 12 is bent forward; the lower U-shaped plate 3 includes two lower side plates 31 for clamping on both sides of the calf and a lower arc plate 32 that can be connected between the two lower side plates 31, and the lower arc plate 32 is bent backward.
[0025] The upper side plate 11 is provided with an upper meshing tooth 111 at the lower end thereof, and the lower side plate 31 is provided with a lower meshing tooth 311 matched with the upper meshing tooth 111 at the upper end thereof.
[0026] The clamping plate assembly 5 includes a first clamping plate 51 and a second clamping plate 52 that can clamp the lower part of the upper side plate 11 and the upper part of the lower side plate 31 therebetween. The first clamping plate 51 and the second clamping plate 52 are connected via an upper shaft 53 and a lower shaft 54. The upper shaft 53 passes through an upper shaft hole 112 on the upper side plate 11 located on the rotation axis of the upper meshing teeth 111, and the lower shaft 54 passes through a lower shaft hole 312 on the lower side plate 31 located on the rotation axis of the lower meshing teeth 311.
[0027] The upper shaft 53 and the lower shaft 54 respectively include a shaft barrel portion 501 and a bolt portion 502 . A cap portion 503 is provided at one end of the shaft barrel portion 501 . An internal thread is provided inside the shaft barrel portion 501 . The bolt portion 502 is threadedly connected to the shaft barrel portion 501 .
[0028] A locking pin 9 is also provided on one of the clamping plate assemblies 5, and a first pin hole 510 and a second pin hole 520 for inserting the locking pin 9 are provided on the first clamping plate 51 and the second clamping plate 52. In this embodiment, a plurality of positioning holes 100 are provided on the upper side plate 11, and the plurality of positioning holes 100 are arranged along the circumference of the upper shaft hole 112, and the locking pin 9 can pass through the positioning holes 100.
[0029] An external threaded tube 519 coaxial with the first pin hole 510 is provided on the first clamping plate 51, and an internal threaded tube 92 matching with the external threaded tube 519 is provided on a knob 91. The external threaded tube 519 is screwed into the internal threaded tube 92, and the locking pin 9 is located on the axis of the internal threaded tube 92 and is fixed to the knob 91. By screwing the knob 91, the locking pin 9 can be fed inward to pass through the positioning hole 100. When it is necessary to adjust the angle of the knee joint rehabilitation fixation device, the knob 91 is screwed in the opposite direction to move the locking pin 9 out of the positioning hole 100, so that the angle between the upper U-shaped plate 1 and the lower U-shaped plate 3 can be rotated to adjust.
[0030] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention of the utility model.
Claims
1. A knee joint rehabilitation fixation device, characterized in that: The invention comprises an upper U-shaped plate, an upper strap arranged on the upper U-shaped plate, a lower U-shaped plate, a lower strap arranged on the lower U-shaped plate, and two clamping plate assemblies for connecting the upper U-shaped plate and the lower U-shaped plate; the upper U-shaped plate comprises two upper side plates for clamping on both sides of the thigh and an upper arc plate that can be connected between the two upper side plates, and the upper arc plate is bent forward; the lower U-shaped plate comprises two lower side plates for clamping on both sides of the calf and a lower arc plate that can be connected between the two lower side plates, and the lower arc plate is bent backward; the lower end of the upper side plate is provided with an upper meshing tooth, and the upper end of the lower side plate is provided with a meshing tooth that engages with the upper meshing tooth Matching lower meshing teeth; the clamping plate assembly includes a first clamping plate and a second clamping plate that can clamp the lower part of the upper side plate and the upper part of the lower side plate therebetween, the first clamping plate and the second clamping plate are connected by an upper shaft and a lower shaft, the upper shaft passes through the upper shaft hole on the upper side plate, and the lower shaft passes through the lower shaft hole on the lower side plate; a locking pin is also provided on one of the clamping plate assemblies, and a first pin hole and a second pin hole for inserting the locking pin are provided on the first clamping plate and the second clamping plate, and a plurality of positioning holes are provided on the upper side plate or the lower side plate, and the plurality of positioning holes are arranged along the circumference of the upper shaft hole or the lower shaft hole, and the locking pin can pass through the positioning holes.
2. The knee joint rehabilitation fixation device according to claim 1, characterized in that: An external threaded barrel coaxial with the first pin hole is arranged on the first clamping plate, an internal threaded barrel matching with the external threaded barrel is arranged on a knob, the external threaded barrel is screwed into the internal threaded barrel, and the locking pin is located on the axis of the internal threaded barrel and fixed to the knob.
3. The knee joint rehabilitation fixation device according to claim 1, characterized in that: The upper shaft or the lower shaft comprises a shaft cylinder portion and a bolt portion, a cap portion is arranged at one end of the shaft cylinder portion, an internal thread is arranged inside the shaft cylinder portion, and the bolt portion is threadedly connected to the shaft cylinder portion.
4. The knee joint rehabilitation fixation device according to any one of claims 1 to 3, characterized in that: There are multiple upper straps and multiple lower straps.
5. The knee joint rehabilitation fixation device according to any one of claims 1 to 3, characterized in that: The two ends of the upper binding belt and the lower binding belt are respectively connected to connecting ears, and the connecting ears are fixed to the upper U-shaped plate or the lower U-shaped plate.
6. The knee joint rehabilitation fixation device according to any one of claims 1 to 3, characterized in that: An upper flexible pad and a lower flexible pad are respectively arranged on one side of the upper U-shaped plate and the lower U-shaped plate close to the patient's legs.