Wrist scaphoid osteonecrosis fixator

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a scaphoid osteonecrosis fixator which comprises a fixing part and a training plate, the fixing part is used for fixing the scaphoid bone and comprises a first fixing plate and a second fixing plate, and the training plate is used for training the scaphoid bone. The two sides of the first fixing plate and the two sides of the second fixing plate are connected through the first connecting belt, the second connecting belt and the third connecting belt, the palm and the arm of the wrist scaphoid osteonecrosis portion are placed on the first fixing plate and the second fixing plate, then the palm is fixed through the first connecting belt, the wrist is fixed through the second connecting belt, and the fixing plate is fixed through the third connecting belt. When exercise is needed, the finger training piece exercises fingers, along with rehabilitation of the scaphoid bone, the hand abuts against the training plate, and the anti-resistance piece abuts against the training plate, so that anti-resistance exercise is conducted on the wrist, the scaphoid bone can be fixed, and the anti-resistance exercise is achieved. And when functional exercise is needed, the functional exercise can be directly carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical appliances, and in particular relates to a fixator for necrosis of the scaphoid bone. Background Art

[0002] The scaphoid bone is one of the carpal bones, located in the wrist, on the outside of the proximal row of carpal bones. The scaphoid bone plays an important role in the movement and stability of the wrist joint, and works together with other carpal bones as well as the radius and metacarpal bones to complete complex tasks such as flexion, extension, adduction and rotation of the wrist joint. However, it is prone to injuries such as fractures due to trauma. When a scaphoid bone injury occurs, patients often ignore the symptoms. If the treatment of a scaphoid bone fracture is not timely or appropriate, or if the fixation is not performed as prescribed by the doctor, it will cause scaphoid bone necrosis.

[0003] Regardless of whether conservative treatment or surgical treatment is used after scaphoid bone necrosis, it is necessary to recover by wearing a fixator on the wrist for about six months to a year. However, after wearing the fixator for the scaphoid bone, it is generally necessary to start from simple flexion and extension of the fingers to mild flexion and extension of the wrist joint for about four weeks, and then transition to resistance training of the wrist joint. When used, the fixator of the prior art generally fixes the hand and forearm in the same straight line, providing a relatively stable environment for the scaphoid bone, which is conducive to the repair of the necrotic area and the formation of new bone. However, when rehabilitation exercises are needed, the fixator needs to be removed and put on again after the exercises. The process is rather cumbersome, and the fixator generally does not have the function of exercise and has relatively simple performance. Therefore, in response to the above problems, we propose a fixator for scaphoid bone necrosis. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a scaphoid bone necrosis fixator, which can not only fix the scaphoid bone, but also directly perform functional exercises when functional exercises are needed.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a fixer for scaphoid necrosis, comprising a fixing member and a training plate, wherein the fixing member is used to fix the scaphoid bone, the fixing member comprises a fixing plate 1 and a fixing plate 2, both sides of the fixing plate 1 are connected to both sides of the fixing plate 2 by connecting belt 1, connecting belt 2 and connecting belt 3, and the connecting belt 1, connecting belt 2 and connecting belt 3 are respectively used to fix the palm, wrist and forearm, a sliding cavity is provided inside the fixing plate 2, the training plate is slidably connected to the inside of the sliding cavity, one end of the training plate is connected to a resistance member, the resistance member comprises two slide plates slidably installed in the sliding cavity and an elastic member connected to the two slide plates, a groove is provided at one end of the fixing plate 2 away from the resistance member, a finger training member is provided in the groove.

[0006] The beneficial effects of the utility model are as follows: by placing the palm and arm at the necrotic part of the scaphoid bone on fixing plate one and fixing plate two, and then fixing the palm by connecting belt one, fixing the wrist by connecting belt two, and fixing the arm by connecting belt three, when exercise is needed, the finger training piece exercises the fingers, and as the scaphoid bone recovers, the hand resists the training plate, and the resistance piece resists the training plate, thereby performing resistance exercise on the wrist, which can not only fix the scaphoid bone, but also directly perform functional exercise when functional exercise is needed.

[0007] In order to train the fingers;

[0008] As a further improvement of the above technical solution: the finger training piece includes a slide groove and a pressing rod, the slide groove is opened on the inner wall of the groove, the pressing rod is slidably connected to the inside of the slide groove, and one end of the pressing rod extends to the inside of the groove, the number of the slide groove and the pressing rod are four, and a tension spring is connected between the pressing rod and the inner wall of the slide groove.

[0009] The beneficial effect of this improvement is that in the early stage of wearing the fixator, rehabilitation training is required for the fingers to increase the flexibility of the fingers and blood circulation and avoid finger stiffness. The four fingers except the thumb are inserted into the grooves and then placed on the corresponding pressing rods for pressing. Due to the elastic effect of the tension spring, after the patient presses the pressing rod, the pressing rod returns to its original position, thereby repeatedly exercising the fingers.

[0010] In order to facilitate the adjustment of the resistance;

[0011] As a further improvement of the above technical solution: the elastic member includes two sliders and a spring connected between the two sliders, a plurality of mounting grooves are correspondingly opened on the two sliders, and the sliders are slidably installed inside the mounting grooves.

[0012] The beneficial effect of this improvement is that as the patient's scaphoid bone recovers, the resistance of the scaphoid bone resistance training can be gradually increased, and the provision of multiple installation slots allows the patient to arbitrarily increase the number of installed elastic parts according to his or her own situation.

[0013] In order to make flexible adjustments;

[0014] As a further improvement of the above technical solution: a spiral rod is threadedly connected to the second fixing plate, and the spiral rod is used to limit the movement of the training board.

[0015] The beneficial effect of this improvement is: when the patient is in the early stage of rehabilitation and only needs to perform finger rehabilitation exercises, the training board can be fixed by tightening the spiral rod so that the spiral rod contacts the training board, thereby preventing the training board from sliding while the patient is performing finger pressing training and affecting the training effect.

[0016] To increase stability;

[0017] As a further improvement of the above technical solution: a through hole for the thumb to pass through is provided on the connecting belt.

[0018] The beneficial effect of this improvement is that passing the patient's thumb through the through hole can better fix the position of the palm, while allowing the thumb to have a certain amount of room for movement, thereby improving the overall stability while ensuring the fixing effect.

[0019] To increase the patient's comfort;

[0020] As a further improvement of the above technical solution: flexible pads are provided on the fixing plate 1 and the fixing plate 2.

[0021] The beneficial effect of this improvement is that the provision of the flexible pad can prevent the patient's skin from directly contacting the fixing plate 1 and the fixing plate 2, and the soft material can increase the patient's comfort in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a side view structural schematic diagram of the utility model;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0026] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of B.

[0027] In the figure: 1, fixing part; 101, fixing plate 1; 102, fixing plate 2; 2, connecting belt 1; 3, connecting belt 2; 4, connecting belt 3 4; 5, training plate; 6, sliding cavity; 7, resistance member; 701, slide plate; 702, elastic member; 7021, slider; 7022, spring; 8, groove; 9, finger training part; 901, slide groove; 902, pressing rod; 10, tension spring; 11, mounting groove; 12, spiral rod; 13, through hole; 14, flexible pad. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0029] like Figure 1-5 As shown, a fixer for scaphoid necrosis of the wrist comprises a fixing member 1 and a training plate 5, wherein the fixing member 1 is used to fix the scaphoid bone of the wrist, the fixing member 1 comprises a fixing plate 101 and a fixing plate 2 102, both sides of the fixing plate 101 and both sides of the fixing plate 2 102 are connected by a connecting belt 1 2, a connecting belt 2 3 and a connecting belt 3 4, and the connecting belt 1 2, the connecting belt 2 3 and the connecting belt 3 4 are respectively used to fix the palm, the wrist and the forearm, a sliding cavity 6 is provided inside the fixing plate 2 102, the training plate 5 is slidably connected to the inside of the sliding cavity 6, one end of the training plate 5 is connected to a resistance member 7, and the resistance member 7 is provided on the inner side of the fixing plate 2 102. The member 7 comprises two slide plates 701 slidably mounted inside the slide cavity 6 and an elastic member 702 connected to the two slide plates 701. A groove 8 is provided at one end of the fixing plate 102 away from the resistance member 7. A finger training member 9 is provided inside the groove 8. The finger training member 9 comprises a slide groove 901 and a pressing rod 902. The slide groove 901 is provided on the inner wall of the groove 8. The pressing rod 902 is slidably connected to the inside of the slide groove 901. One end of the pressing rod 902 extends to the inside of the groove 8. The number of the slide groove 901 and the pressing rod 902 are both four. A tension spring 10 is connected between the pressing rod 902 and the inner wall of the slide groove 901.

[0030] Specifically, the patient with wrist scaphoid necrosis places the forearm and palm between the fixing plate 101 and the fixing plate 2 102, then fixes the patient's palm with the connecting belt 1 2, then fixes the patient's wrist with the connecting belt 2 3, and then fixes the patient's forearm with the connecting belt 3 4. Three loops can be set on both sides of the fixing plate 101 for the connecting belt 1 2, the connecting belt 2 3 and the connecting belt 3 4 to pass through, and then the passed connecting belt 1 2, the connecting belt 2 3 and the connecting belt 3 4 are folded back and fixed to themselves through the fixing member 1. The fixing member 1 can be a Velcro, a snap buckle, etc. At this time, the palm, wrist and forearm are on the same horizontal line, and due to the action of the fixing plate 101 and the fixing plate 2 102, the patient cannot bend his wrist, which affects the wrist scaphoid. The bone is fixed. In the early stage of the rehabilitation of the scaphoid bone, functional exercises need to be gradually started from the fingers. At this time, the finger training piece 9 is used to put the patient's four fingers except the thumb into the groove 8, and then each finger is placed on the corresponding pressing rod 902. The finger presses the pressing rod 902, and then the pressing rod 902 squeezes the tension spring 10 to deform, and then under the elastic action of the tension spring 10, the deformation can be restored. The patient's fingers are trained repeatedly in this way. As the scaphoid bone gradually recovers, the transition to resistance training is made. At this time, the patient bends his wrist, and the base of the palm touches the front end of the training plate 5, and the front end of the training plate 5 is continuously pushed into the sliding cavity 6. The resistance piece 7 increases the elasticity and resistance of the training plate 5 to achieve the effect of patient training.

[0031] Preferably, the elastic member 702 includes two sliders 7021 and a spring 7022 connected between the two sliders 7021. A plurality of mounting grooves 11 are correspondingly provided on the two sliders 701. The sliders 7021 are slidably installed inside the mounting grooves 11. As the patient's scaphoid bone recovers, it is necessary to gradually increase the resistance training of the wrist to exercise the wrist muscle strength and promote the recovery of the scaphoid bone. The number of installed elastic members 702 can be increased at will according to the actual situation to increase the patient's resistance. The training plate 5 drives the resistance member 7 to be pulled out from the sliding cavity 6, and then the number of elastic members 702 is increased, and then the training plate 5 and the resistance member 7 are put back into the sliding cavity 6.

[0032] Preferably, a spiral rod 12 is threadedly connected to the fixing plate 102, and the spiral rod 12 is used to limit the movement of the training plate 5. When the patient is in the early stage of rehabilitation and only needs to perform rehabilitation exercises for the fingers, the spiral rod 12 can be tightened to make the spiral rod 12 contact the training plate 5, so as to fix the training plate 5, thereby preventing the patient from sliding the training plate 5 while performing finger pressing training, thereby affecting the training effect.

[0033] Preferably, the connecting belt 2 is provided with a through hole 13 for the thumb to pass through. Passing the patient's thumb through the through hole 13 can better fix the position of the palm while allowing the thumb to have a certain amount of room for movement, thereby improving the overall stability while ensuring the fixing effect.

[0034] Preferably, both the fixing plate 1 101 and the fixing plate 2 102 are provided with a flexible pad 14, and the flexible pad 14 can be made of soft materials such as cotton pads and sponge pads. The provision of the flexible pad 14 can prevent the patient's skin from directly contacting the fixing plate 1 101 and the fixing plate 2 102, and the soft material can increase the patient's comfort.

[0035] The working principle and use process of the utility model are as follows: when using the device, the palm and forearm of the patient's wrist scaphoid necrosis part are placed between the fixing plate 1 101 and the fixing plate 2 102, and then the connecting belt 1 2 is used to fix the patient's palm, and the patient's thumb is passed through the through hole 13, and then the connecting belt 2 3 is fixed at the wrist, and the connecting belt 3 4 is fixed on the forearm. When finger exercise is needed, the spiral rod 12 is loosened, the training plate 5 is pulled out, and then the training plate 5 is fixed by tightening the spiral rod 12, and the fingers are inserted into the groove 8, and the fingers are placed on each pressing rod 902, and then the pressing rod 9 is pressed. 02, the pressing rod 902 squeezes the tension spring 10 to cause deformation, and the elastic effect of the tension spring 10 resists the finger, and the rehabilitation training of the finger is repeated. As the patient's scaphoid bone gradually recovers, it is necessary to move the wrist and gradually increase the resistance training. The training plate 5 is pulled out, and then the base of the patient's palm resists the training plate 5, and the training plate 5 resists the resistance member 7. The bending of the hand pushes the training plate 5 into the sliding cavity 6. Then, when it is necessary to increase the resistance, the training plate 5 and the resistance member 7 are pulled out as a whole, and the number of elastic members 702 is increased to train the patient's wrist muscles and promote the rehabilitation of the patient's scaphoid bone.

[0036] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A fixator for necrosis of wrist scaphoid bone, characterized in that: include; A fixing member (1), the fixing member (1) is used to fix the scaphoid bone of the wrist, the fixing member (1) comprises a fixing plate 1 (101) and a fixing plate 2 (102), both sides of the fixing plate 1 (101) and both sides of the fixing plate 2 (102) are connected by a connecting belt 1 (2), a connecting belt 2 (3) and a connecting belt 3 (4), and the connecting belt 1 (2), the connecting belt 2 (3) and the connecting belt 3 (4) are used to fix the palm, the wrist and the forearm respectively; A training board (5), wherein a sliding cavity (6) is provided inside the second fixed board (102), wherein the training board (5) is slidably connected to the inside of the sliding cavity (6), wherein one end of the training board (5) is connected to a resistance member (7), wherein the resistance member (7) comprises two slide plates (701) slidably installed inside the sliding cavity (6) and an elastic member (702) connected to the two slide plates (701), wherein a groove (8) is provided at one end of the second fixed board (102) away from the resistance member (7), wherein a finger training member (9) is provided in the groove (8).

2. The fixator for necrosis of the scaphoid bone according to claim 1, characterized in that: The finger training piece (9) comprises a slide groove (901) and a pressing rod (902), wherein the slide groove (901) is formed on the inner wall of the groove (8), the pressing rod (902) is slidably connected to the inside of the slide groove (901), and one end of the pressing rod (902) extends to the inside of the groove (8), the number of the slide groove (901) and the pressing rod (902) are both four, and a tension spring (10) is connected between the pressing rod (902) and the inner wall of the slide groove (901).

3. The fixator for necrosis of wrist scaphoid according to claim 1, characterized in that: The elastic member (702) comprises two sliders (7021) and a spring (7022) connected between the two sliders (7021); a plurality of mounting grooves (11) are correspondingly provided on the two sliders (701); and the sliders (7021) are slidably mounted inside the mounting grooves (11).

4. The fixator for necrosis of the scaphoid bone according to claim 1, characterized in that: The second fixing plate (102) is threadedly connected with a screw rod (12), and the screw rod (12) is used to limit the movement of the training plate (5).

5. The fixator for necrosis of wrist scaphoid bone according to claim 1, characterized in that: The connecting belt 1 (2) is provided with a through hole (13) for the thumb to pass through.

6. The fixator for necrosis of wrist scaphoid bone according to claim 1, characterized in that: The fixing plate 1 (101) and the fixing plate 2 (102) are both provided with flexible pads (14).

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