Interphalangeal joint space retractor

Abstract

The invention belongs to the technical field of medical instruments, and discloses a proximal interphalangeal joint space retractor which comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are the same in structure and are each formed by combining two clamping blocks, and sponge inner pads are arranged in the clamping blocks; one clamping block in the first clamping assembly is fixedly connected with a connecting rod, two springs are symmetrically arranged on one clamping block in the second clamping assembly, the two springs are fixedly connected with supporting rods, and the supporting rods are fixedly connected with the connecting rod. The two sides of the two clamping blocks of the first clamping assembly and the second clamping assembly are symmetrically provided with a plurality of locking holes matched with each other, and the two clamping blocks penetrate through the corresponding locking holes through locking bolts to be fixedly locked. Through noninvasive treatment, the problem of postoperative nail channel infection in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a proximal interphalangeal joint space retractor. Background Art

[0002] With the acceleration of industrialization and the complication of production activities, the incidence of hand injuries has increased significantly, especially in high-risk industries such as mining and construction, where hand injuries have almost become a form of occupational disease. After hand injuries, stiffness and limited flexion and extension of the proximal interphalangeal joint have become a common and difficult-to-cure complication. This dysfunction not only affects the patient's daily quality of life, but also has a profound impact on mental health.

[0003] Traditional treatments for joint stiffness usually involve surgery, where metal pins are firmly fixed to the proximal and middle phalanges, and then connected using elastic materials to construct a traction system. The core purpose of this system is to effectively open the interphalangeal gap through this traction effect, so that the scar tissue formed around the joint due to injury can be stretched and relaxed, thereby creating favorable conditions for the joint to restore its normal range of motion. However, the nail channel needs to be disinfected daily after surgery, and there is a high risk of infection in the nail channel, which in turn causes a high risk of phalangeal osteomyelitis, often leading to finger amputation and lifelong disability.

[0004] Therefore, there is an urgent need for a new non-invasive treatment device that can effectively resolve the problem of joint stiffness, avoid the various defects of traditional surgical treatments, and provide patients with a safer, more convenient and effective treatment approach. Summary of the invention

[0005] The present invention aims to provide a proximal interphalangeal joint space distractor to solve the problem of postoperative nail tract infection in the prior art through non-invasive treatment.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A proximal interphalangeal joint space distractor comprises a first clamping assembly and a second clamping assembly, wherein the first clamping assembly is movably connected to the second clamping assembly, and the first clamping assembly and the second clamping assembly have the same structure and are both composed of two clamping blocks;

[0008] The first clamping assembly is fixedly connected with a connecting rod, wherein the connecting rod forms a fixed connection relationship with at least one of the two clamping blocks constituting the first clamping assembly;

[0009] Two elastic members are symmetrically arranged on the second clamping assembly, and both of the elastic members are fixedly connected to a support rod, and the support rod is fixedly connected to the connecting rod, wherein the elastic member forms a fixed connection relationship with at least one of the two clamping blocks constituting the second clamping assembly.

[0010] Furthermore, a plurality of mutually matching locking holes are symmetrically arranged on both sides of the two clamping blocks of the first clamping assembly and the second clamping assembly, and the two clamping blocks are fixed and locked by locking bolts penetrating the corresponding locking holes.

[0011] Furthermore, the elastic member is a spring or a rubber band.

[0012] Furthermore, a sponge inner pad is provided in the clamping block.

[0013] Furthermore, the connecting rod is a telescopic rod.

[0014] Furthermore, the first clamping assembly and the second clamping assembly are both made of aluminum sheet material.

[0015] Principles and beneficial effects of the technical solution:

[0016] 1. Precise and stable structure: Based on the human hand structure and mechanical principles, the double clamping components and locking structure fit the fingers and stably clamp them, ensuring that the retraction force acts evenly on the joints to avoid injuries, creating conditions for scar tissue stretching, and improving the safety and effectiveness of treatment.

[0017] 2. Application of elastic components: The selection of elastic parts such as springs and rubber bands can adapt to different conditions and individual differences of patients. Springs provide stable and strong force, while rubber bands have a gentle effect, which makes it convenient for doctors to formulate personalized plans based on the patient's condition, enhance the accuracy and adaptability of treatment, and improve patient experience and rehabilitation effects.

[0018] 3. Comfort and convenience optimization: The sponge inner pad disperses pressure to relieve pain and improve tolerance; the telescopic rod allows doctors to accurately and quickly adjust the retraction effect according to the joint condition; the aluminum sheet material reduces weight, facilitates patients' daily activities, and is beneficial to postoperative recovery and improvement of quality of life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the top of a proximal interphalangeal joint space distractor of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the bottom of a proximal interphalangeal joint space distractor of the present invention;

[0021] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0022] The names of the corresponding marks in the accompanying drawings are: clamping block 1, connecting rod 2, elastic member 3, supporting rod 4, locking hole 5, locking bolt 6, sponge inner pad 7. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0024] A proximal interphalangeal joint space retractor, such as Figure 1-Figure 3 As shown, it includes a first clamping assembly and a second clamping assembly, the first clamping assembly is movably connected to the second clamping assembly, the first clamping assembly and the second clamping assembly have the same structure and are both composed of two clamping blocks 1; the first clamping assembly is fixedly connected to a connecting rod 2, wherein the connecting rod 2 forms a fixed connection relationship with one of the two clamping blocks 1 constituting the first clamping assembly; the second clamping assembly is symmetrically provided with two elastic members 3, the two elastic members 3 are fixedly connected to a support rod 4, the support rod 4 is fixedly connected to the connecting rod 2, wherein the elastic member 3 forms a fixed connection relationship with one of the two clamping blocks 1 constituting the second clamping assembly.

[0025] When in use, first, fix the first clamping assembly on the proximal phalanx, so that the two clamping blocks 1 on the first clamping assembly wrap around the proximal phalanx respectively; secondly, fix the second clamping assembly on the middle phalanx, so that the two clamping blocks 1 on the second clamping assembly wrap around the middle phalanx respectively; use the connecting rod 2, the elastic member 3 and the supporting rod 4 to fix the first clamping assembly and the second clamping assembly in the same "frame", and at the same time, use the elastic member 3 on the second clamping assembly to pull the second clamping assembly fixed on the middle phalanx forward, thereby effectively widening the fingertip gap between the proximal phalanx and the middle phalanx, creating favorable conditions for the joint to restore its normal range of motion.

[0026] In this embodiment, a plurality of mutually matching locking holes 5 are symmetrically arranged on both sides of the two clamping blocks 1 of the first clamping assembly and the second clamping assembly, and the two clamping blocks 1 are fixed and locked by passing the corresponding locking holes 5 through the locking bolts 6. The locking holes are symmetrically arranged on both sides of the clamping blocks and fixed with locking bolts, which can enhance stability, accurately and evenly fix to reduce the risk of tissue damage, and facilitate medical staff to flexibly operate according to the patient's condition, effectively improving the versatility, stability and safety of the retractor, and providing protection for joint treatment.

[0027] In this embodiment, the elastic member 3 is a spring. According to the stiffness of the patient's proximal interphalangeal joint, a continuous, stable and sufficient distraction force is accurately provided to effectively expand the joint gap. At the same time, the elastic recovery performance of the spring helps to maintain the distraction state during the treatment process, ensure the stability and reliability of the treatment effect, and promote the recovery of joint function.

[0028] In this embodiment, a sponge inner pad 7 is provided in the clamping block 1. It can effectively buffer the pressure of the clamping block on the finger, reduce the discomfort and pain of the patient wearing the retractor for a long time, avoid local compression injury, improve patient compliance, and enhance the clamping stability, which is conducive to the continuous and stable retraction treatment of the proximal interphalangeal joint.

[0029] In this embodiment, the connecting rod 2 is a telescopic rod. By adjusting the telescopic rod, the length of the connecting rod 2 is adjusted, thereby controlling the distance between the support rod 4 on the connecting rod 2 and the second clamping assembly, thereby adjusting the telescopic length of the spring to control the elastic force of the spring, thereby controlling the magnitude of the pulling force between the first clamping assembly and the second clamping assembly.

[0030] In this embodiment, the first clamping assembly and the second clamping assembly are both made of aluminum sheet material, which can ensure that the retractor has sufficient structural strength to stably support and retract the proximal interphalangeal joint, and can also significantly reduce the overall weight, improve the comfort and convenience of the patient's wearing, thereby facilitating the patient's daily hand activities and rehabilitation training, and improving the treatment experience.

[0031] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A proximal interphalangeal joint space distractor, characterized in that: It comprises a first clamping assembly and a second clamping assembly, wherein the first clamping assembly is movably connected to the second clamping assembly, and the first clamping assembly and the second clamping assembly have the same structure and are both composed of two clamping blocks (1); The first clamping assembly is fixedly connected to a connecting rod (2), wherein the connecting rod (2) forms a fixed connection relationship with at least one of the two clamping blocks (1) constituting the first clamping assembly; Two elastic members (3) are symmetrically arranged on the second clamping assembly, and the two elastic members (3) are fixedly connected to a support rod (4), and the support rod (4) is fixedly connected to the connecting rod (2), wherein the elastic member (3) forms a fixed connection relationship with at least one of the two clamping blocks (1) constituting the second clamping assembly.

2. The proximal interphalangeal joint space distractor according to claim 1, characterized in that: A plurality of mutually matching locking holes (5) are symmetrically arranged on both sides of the two clamping blocks (1) of the first clamping assembly and the second clamping assembly, and the two clamping blocks (1) are fixedly locked by locking bolts (6) penetrating the corresponding locking holes (5).

3. The proximal interphalangeal joint space distractor according to claim 1, characterized in that: The elastic member (3) is a spring or a rubber band.

4. The proximal interphalangeal joint space distractor according to claim 1, characterized in that: The clamping block (1) is provided with a sponge inner pad (7).

5. The proximal interphalangeal joint space distractor according to claim 1, characterized in that: The connecting rod (2) is a telescopic rod.

6. The proximal interphalangeal joint space distractor according to claim 1, characterized in that: The first clamping assembly and the second clamping assembly are both made of aluminum sheet material.

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