Finger traction reduction fixation splint

Abstract

The invention discloses a finger traction reduction fixation splint which is mainly used for distal radius fracture reduction fixation. After manual reduction of distal radius fracture is finished, the finger traction reduction fixation splint can be rapidly mounted, fracture reduction can be effectively maintained, wrist fracture can be further reduced by the ligament reduction principle after finger traction, the height of a distal radius joint surface is kept, traction directions can be adjusted and lateral displacement can be corrected according to situations, all joints of hands can be functionally trained based on reduction maintenance, detumescence is promoted, hand functions of a patient are reserved as far as possible, and rehabilitation effects are ensured. Besides, the finger traction reduction fixation splint is also applicable to treatment of metacarpal fracture, phalangeal fracture and wrist fracture dislocation.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a finger traction reduction and fixation splint for the reduction and fixation of distal radius fractures. Background technique [0002] Fractures of the distal radius are common clinically, and account for the highest proportion of fracture patients in orthopedic emergencies. The incidence rate is about 125 / 10,000 of the population. It is more common in middle-aged and elderly patients. 17% of women over 50 years old will suffer from distal radius fractures. It is mainly related to the risk of osteoporosis in postmenopausal women. With the continuous extension of human life expectancy and the continuous improvement of the quality of life requirements, the treatment of distal radius fractures has attracted more and more attention. The frequency of radiocarpal joint movement is high, and improper treatment after injury is likely to cause chronic pain and joint stiffness, which grea...

AI Technical Summary

Problems solved by technology

When plaster fixation is used for Cole’s fracture, the wrist joint is usually fixed in volar flexion and ulnar deviation after manual reduction, and then changed to neutral position after 2-3 weeks, while small splint fixation usually does not exceed 4-6 weeks of wrist joint fixation. The above-mentioned fixation methods are often the first choice for elderly patients due to their advantages of simplicity, almost non-invasiveness, and low cost. However, fracture reduction is lost, articular surface height cannot be maintained, long-term swelling of the wrist (small splint fixation can even cause severe swelling), and fracture deformity Healing is common, and it is difficult to carry out effective functional exercises early, which eventually leads to wrist joint weakness, pain, stiffness, and limited mobility. Although surgical treatment generally has certain advantages in terms of stability and functional recovery after fracture reduction, However, this difference is not obvious in elderly patients, and there are still risks or disadvantages such as blood vessel, nerve, tendon injury, infection, prolonged hospitalization time and high cost

[0003] At present, there are some patent designs trying to improve the traditional gypsum or small splint technology, which we like to see, but there are still some defects in these designs. For example, the Chinese utility model patent with the authorization notification number CN 201064510Y discloses a "Adjustable external fixator for distal radius fracture", this design realizes the adjustment and fixation of the wrist joint at different flexion and extension angles through the hinge structure of the splint at the wrist joint, but it cannot adjust the deflection angle of the radial and ulnar side; and The Chinese utility model patent with the authorized notification number CN205515104U discloses "an adjustable splint for fixing the distal end of the radius". However, there is still a common defect in the above designs, that is, the height of the articular surface of the distal radius cannot be well maintained (especially for comminuted fractures), and most of the fractures of the distal radius are brittle fractures, which are caused by osteoporosis. As a result, the loss of fracture reduction and the reduction of the articular surface height of the distal radius are very common in the later stage of traditional fixation. This situation has a great impact on the recovery of wrist joint function, and even in internal fixation surgery, this also leads to poor postoperative results. main reason

[0004] In addition, the Chinese invention patent with the authorized notification number CN 103989546B discloses a "non-invasive adjustable splint bracket for distal radius fracture". Adjusting in all directions seems to be able to maintain the height of the articular surface of the distal radius well, but there are still the following defects: 1. The installation process is too cumbersome and time-consuming; 2. More than two people need to cooperate for a long time at the same time, otherwise the installation process There is no guarantee that the reset will not be lost; 3. If the X-ray film after the installation is completed and the reset is found to be poor, it will take too much time to reset and install after disassembly. At this time, does the shape of the palm splint need to be reshaped? 4. Maintaining the height of the articular surface of the distal radius requires a certain amount of traction force. The hand splint in this patent is a "C"-shaped structure. The patent document does not mention whether the hand splint is installed from the ulnar side or the radial side. If the opening is on the radial side, since the palm is a physiological structure that gradually becomes thicker and thinner from near to far, can the hand splint maintain the pulling force toward the distal end? If the opening is on the ulnar side, the splint has a certain support at the first carpometacarpal joint, and a certain amount of traction can be maintained after the connecting belt is fastened. However, the movement of the thumb will be significantly restricted at this time, which should never be allowed 5. Low-temperature thermoplastic plates and external fixators are not cheap in China at present, how many patients would be willing to use them; 6. How to keep warm when using them in winter? Therefore, the invention is not practical

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