Orthopedic trauma rehabilitation fixation device

Abstract

The present invention relates to the field of orthopedic splints, specifically an orthopedic trauma rehabilitation fixation device, comprising three knuckle rings, wherein adjacent surfaces of the knuckle rings are connected with joint telescopic sleeves, and the middle portions of the front and rear sides of the outer side surfaces of the knuckle rings are provided with two symmetrical support rod arc grooves, both extending 90° clockwise along the outer side surfaces of the knuckle rings, wherein a support rod slider is slidably installed in the support rod arc grooves, a support rod is installed between each two support rod sliders, and each two support rods are hinged, and a torsion spring is installed at the hinge, and support rod positioning holes are provided at both ends of each support rod arc groove, and a support rod screw hole is passed through between the inner side surface of each support rod slider and the outer side surface of the support rod, and a support rod positioning bolt is installed in the support rod screw hole. The present invention switches between fixed and movable positions through the three knuckle rings, which can meet the needs of clamping and fixing of patients in the early stages of wound healing, and can also meet the needs of active exercise in the middle and late stages of healing.

Description

Technical Field

[0001] The present invention relates to the technical field of orthopedic splints, and in particular to an orthopedic trauma rehabilitation fixation device. Background Art

[0002] When a finger is fractured, it is generally necessary to use a finger fracture rehabilitation device and a splint to fix it. The finger fracture rehabilitation splint is a commonly used medical device for treating finger fractures. It can provide stable support and limit finger movement, helping the fracture site to heal. Fractures in the finger joints have complex structures, small fracture fragments, and many ligaments attached to the joint ends, which pull the fracture fragments and cause displacement. The treatment effect has not been ideal. One of the main reasons is that reduction is difficult. Even after reduction, neither internal fixation nor external fixation can meet the requirements of early finger movement. If not handled properly, it can easily lead to joint stiffness or deformity.

[0003] At present, the commonly used finger fracture fixation splint has a "U"-shaped splint with Velcro fixed on the outside. When in use, the finger is placed on the inside of the splint and the splint is fixed to the outside of the finger through the Velcro, thereby achieving the effect of helping the fracture site to heal. However, the fixation method using Velcro can keep the finger fixed in the early stage of healing, but in the middle and late stages of healing, the finger needs to be moved and exercised. When the above-mentioned splint is used to fix the finger, the finger cannot be moved and bent during the entire healing process, and the purpose of exercise during the healing and rehabilitation process cannot be achieved. Therefore, long-term splint external fixation is also a direct cause of finger joint stiffness or deformity.

[0004] In addition, after the splint is fixed to the outside of the finger with Velcro, the skin of the finger is covered by the splint for a long time. Due to factors such as sweating, the skin of the finger will become itchy. At this time, the splint needs to be removed and the skin needs to be treated before being fixed. During this operation, secondary injury to the traumatic site may easily occur, and there are safety hazards when the patient operates it by himself.

[0005] Therefore, based on the defects of the existing technology, the present invention provides an orthopedic trauma rehabilitation fixation device to solve the above problems. Summary of the Invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an orthopedic trauma rehabilitation fixation device to solve the problems existing in the use of existing finger fracture fixation splints.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] An orthopedic trauma rehabilitation fixation device comprises three knuckle rings, which are arranged horizontally, and a joint telescopic sleeve is fixedly connected between the adjacent surfaces of each two knuckle rings. Two left-right symmetrical support rod arc grooves are provided in the middle of the front and back sides of the outer side surface of each knuckle ring, and each support rod arc groove extends 90 degrees clockwise along the outer side surface of the knuckle ring. A support rod slider is slidably installed in each support rod arc groove, and a support rod slider is fixedly installed between each two left and right corresponding support rod sliders. There is a support rod, and the support rods on every two adjacent knuckle rings are hinged to each other through a pin shaft, the axis of the pin shaft and the axis of the knuckle ring are perpendicular to each other, and a torsion spring is installed at the hinge point, and a support rod positioning hole is opened at both ends of each support rod arc groove, and a support rod screw hole is passed through between the inner side surface of each support rod slider and the outer side surface of the support rod, and a support rod positioning bolt that can be plugged into the support rod positioning hole is threadedly installed in each support rod screw hole, and an inner lining layer is connected to the inner side surface of the knuckle ring.

[0009] Preferably, each of the knuckle rings is composed of two semi-ring-shaped knuckle half rings, and each of the knuckle half rings has a support rod arc groove on its outer side. When the two knuckle half rings are closed to form the knuckle ring, the overlapping surface of the two is at a 45° angle to the vertical center line of the knuckle ring, so that one end of the two support rod arc grooves is respectively located at the front and rear sides of the knuckle ring, and the other ends of the two support rod arc grooves extend clockwise to the upper and lower sides of the knuckle ring.

[0010] Preferably, a ring sleeve bolt groove is provided on the outer surface of each of the knuckle half ring sleeves at the edge of the overlapping surface of the two knuckle half ring sleeves, and a ring sleeve screw hole is penetrated inside the interior of each of the ring sleeve bolt grooves toward the interior of the other knuckle half ring sleeve, and a ring sleeve closing bolt is installed in the inner thread of the ring sleeve screw hole.

[0011] Preferably, a traction rope block is installed at the bottom of the right end of the knuckle ring located on the far right, and a traction rope ring is installed at the bottom of the left end of the knuckle ring located on the far left. A traction rope is fixedly installed on the traction rope block, and the other end of the traction rope is fixedly connected to the wrist ring after passing through the traction rope ring.

[0012] Preferably, each of the knuckle half-rings comprises two knuckle semicircular plates symmetrically placed on the left and right positions, two guide connecting rods are connected between the opposite surfaces of the two knuckle semicircular plates, and the outer sides of the two guide connecting rods are jointly installed with a toggle arc plate for sliding left and right, a toggle block is installed on the outer side of the toggle arc plate, and a soothing paddle is installed on the inner side of the toggle arc plate.

[0013] Preferably, two toggle arc grooves are provided on the opposite surfaces of the two knuckle semicircular plates, and a toggle slider is installed in each of the toggle arc grooves for arc sliding. A guide connecting rod is connected between every two toggle sliders symmetrically positioned on the left and right, and a toggle slider spring is fixedly connected between the two side surfaces of the two toggle sliders on one of the knuckle semicircular plates and the two ends of the corresponding toggle arc groove.

[0014] Preferably, the inner side surfaces of the two toggle arc grooves on the other knuckle semicircular plate are both provided with connecting rod moving arc grooves facing the interior of the knuckle semicircular plate, the guide connecting rod passes through the corresponding toggle slider and is placed inside the connecting rod moving arc groove, a connecting rod positioning arc groove passes through the outer side surface of the knuckle semicircular plate and the interior of the toggle arc groove, a connecting rod positioning screw hole passes through the outer side surface of the toggle slider, a plurality of connecting rod positioning holes are provided on the outer side surface of the guide connecting rod, the inner thread of the connecting rod positioning screw hole is installed with a connecting rod positioning bolt that can be plugged into the connecting rod positioning hole, and the other end of the connecting rod positioning bolt passes through the connecting rod positioning arc groove and is placed on the outer side of the knuckle semicircular plate.

[0015] Preferably, each of the support rods includes a support rod body, and support rod telescopic grooves are opened at both ends of the support rod body. A support telescopic rod is slidably installed in each of the support rod telescopic grooves, and each of the support telescopic rods is fixedly connected to the outer side of the corresponding support rod slider by a pin.

[0016] The beneficial effects of the present invention are:

[0017] 1. When the multiple support rods are located on the upper and lower sides of the knuckle collar, the multiple pins are perpendicular to the axis of the finger joints. Therefore, the three knuckle collars cannot bend toward the palm. This can achieve the function of clamping, fixing and supporting the fingers in the early stages of wound healing and prevent involuntary bending of the fingers that may cause poor healing.

[0018] 2. In the middle and late stages of healing and rehabilitation, when the fingers need to be bent, the support rod slider can be moved to the front and rear sides of the knuckle ring. At this time, the axis of the pin is coaxial with the axis of the finger joint. At this time, the three knuckle rings can follow the finger bending movement. When the three knuckle rings follow the finger bending, the multiple support rods rotate and the torsion springs accumulate force, which can help the bent fingers straighten and reset.

[0019] 3. The three knuckle rings are used to switch between fixed and movable. Compared with the existing method of fixing the splint with Velcro, this method can not only meet the patient's clamping and fixation in the early stage of wound healing, but also meet the needs of exercise in the middle and late stages of healing. When adjusting, only a few support rod positioning bolts need to be turned, and the patient can operate and adjust by himself without removing the knuckle rings, avoiding the risk of secondary injury to the fingers when the existing splint needs to bend and move, and the risk of secondary injury to the fingers when the splint needs to be removed.

[0020] 4. In the early stage of healing, after the fracture trauma has initially healed, finger flexion exercises are required. However, at this time, the patient's fingers are difficult to move independently, so external force is needed. The wrist ring can pull the traction rope block through the traction rope, so that the rightmost knuckle ring is bent toward the palm, that is, the fingers are driven to bend; when the entire hand is restored to be flush with the arm, the traction rope is relaxed, and the three knuckle rings can be straightened and restored under the elastic force of the torsion spring at the hinge of the support rod. Repeating the above operation can achieve the purpose of passive finger flexion exercise.

[0021] 5. The toggle block can be pushed back and forth to drive the toggle arc plate to move left and right. The toggle arc plate can scratch the finger skin to relieve itching through the soothing paddle. The soothing paddle is soft in texture and will not affect wound healing while relieving itching. The toggle arc plate can also be pushed back and forth to move circumferentially to drive the guide connecting rod to move circumferentially. The guide connecting rod drives the toggle slider to slide in the arc direction in the toggle arc groove and stretch or compress the toggle slider spring. After releasing the toggle block, the toggle slider can be reset under the elastic force of the toggle slider spring, thereby achieving circumferential scratching relief on the finger skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the present invention consisting of multiple finger joint half rings.

[0023] Figure 2 It is a front view of the present invention consisting of multiple knuckle half rings.

[0024] Figure 3 For the present invention Figure 2 Cross-section view at AA in the middle.

[0025] Figure 4 It is a three-dimensional schematic diagram of the support rods of the present invention when they are located at the upper and lower sides.

[0026] Figure 5 It is a cross-sectional schematic diagram of the support rod of the present invention when it is at the upper and lower sides.

[0027] Figure 6 It is a three-dimensional schematic diagram of the present invention consisting of multiple finger joint semicircular plates and guide connecting rods.

[0028] Figure 7It is a front view of the present invention consisting of multiple finger joint semicircular plates and a guide connecting rod.

[0029] Figure 8 It is a three-dimensional cross-sectional view of the present invention consisting of multiple finger joint semicircular plates and guide connecting rods.

[0030] Figure 9 For the present invention Figure 6 Enlarged view of point B in the middle.

[0031] Figure 10 For the present invention Figure 7 Three-dimensional cross-section view at CC in the middle.

[0032] Figure 11 For the present invention Figure 10 Enlarged view of point D in the middle.

[0033] Figure 12 For the present invention Figure 8 Enlarged view of point E in the middle.

[0034] Figure 13 It is a cross-sectional schematic diagram of the support rod of the present invention.

[0035] In the figure: 1, knuckle ring; 2, joint expansion sleeve; 3, support rod arc groove; 4, support rod slider; 5, support rod; 6, pin; 7, support rod positioning hole; 8, support rod screw hole; 9, support rod positioning bolt; 10, inner lining; 11, knuckle half ring; 101, knuckle semicircular plate; 12, ring bolt groove; 13, ring screw hole; 14, ring closing bolt; 15, traction rope block; 16, traction rope ring; 17, traction rope ; 18. Wrist ring; 19. Guide connecting rod; 20. Toggle arc plate; 21. Toggle block; 22. Soothing paddle; 23. Toggle arc groove; 24. Toggle slider; 25. Toggle slider spring; 26. Connecting rod moving arc groove; 27. Connecting rod positioning arc groove; 28. Connecting rod positioning screw hole; 29. ​​Connecting rod positioning hole; 30. Connecting rod positioning bolt; 31. Support rod body; 32. Support rod telescopic groove; 33. Support telescopic rod; 34. Pin. DETAILED DESCRIPTION

[0036] The following will refer to the attached Figure 1 To the attached Figure 13 Various embodiments of the present invention are described in detail.

[0037] Example 1, as shown in the attached Figures 1-13As shown, an orthopedic trauma rehabilitation fixation device includes three knuckle rings 1, which are arranged horizontally between the three knuckle rings 1. The present invention is applicable to the four fingers except the thumb. As shown in the accompanying drawings, the length of the knuckle ring 1 on the far right is shorter than that of the other two knuckle rings 1. The three knuckle rings 1 are sequentially sleeved on the outside of the first knuckle (the knuckle away from the palm end), the second knuckle (the middle knuckle) and the third knuckle (the knuckle close to the palm) of the fingers from right to left. A joint telescopic sleeve 2 is fixedly connected between the adjacent surfaces of every two knuckle rings 1. When the three knuckle rings 1 are sleeved and installed on the outside of the fingers, the joints are inside the joint telescopic sleeves 2. When the fingers are bent, they can drive the joint telescopic sleeves 2 to bend and telescope accordingly, as shown in the attached drawings. Figure 3 、 Figure 5 As shown, two symmetrical support rod arc grooves 3 are provided in the middle of the front and rear sides of the outer side surface of each of the knuckle rings 1, and each of the support rod arc grooves 3 extends 90° clockwise along the outer side surface of the knuckle ring 1. A support rod slider 4 is slidably installed in each of the support rod arc grooves 3, and the support rod slider 4 can slide in the arc direction of the support rod arc groove 3. A support rod 5 is fixedly installed between each two corresponding support rod sliders 4 at the left and right positions. The support rods 5 on each two adjacent knuckle rings 1 are hinged to each other through a pin 6. The axis of the pin 6 is perpendicular to the axis of the knuckle ring 1, and a torsion spring is installed at the hinge.

[0038] As attached Figure 2 、 Figure 4 As shown, when the multiple support rods 5 are located on the upper and lower sides of the knuckle ring 1, the multiple pins 6 are perpendicular to the axis of the finger joints. Therefore, the three knuckle rings 1 cannot bend toward the palm, thereby achieving the function of clamping, fixing and supporting the fingers in the early stage of wound healing and preventing involuntary bending of the fingers from causing unsatisfactory healing.

[0039] In the middle and late stages of healing and rehabilitation, when the fingers need to be bent, the support rod slider 4 can be slid to drive the support rod 5 to move to the front and rear sides of the knuckle ring 1. At this time, the axis of the pin 6 is coaxial with the axis of the finger joint. At this time, the three knuckle rings 1 can follow the bending of the fingers. When the three knuckle rings 1 follow the bending of the fingers, the multiple support rods 5 rotate and the torsion springs accumulate force, which can help the bent fingers to straighten and reset.

[0040] Each of the two ends of the support rod arc groove 3 is provided with a support rod positioning hole 7, and a support rod screw hole 8 is penetrated between the inner side of each support rod slider 4 and the outer side of the support rod 5. A support rod positioning bolt 9 that can be plugged into the support rod positioning hole 7 is threadedly installed in each of the support rod screw holes 8. By plugging and matching the support rod positioning bolt 9 with the support rod positioning hole 7, the position of the support rod 5 can be fixed. When the position of the support rod 5 needs to be adjusted, the support rod positioning bolt 9 is unscrewed from the support rod positioning hole 7, and the support rod slider 4 can be slid to the other end of the support rod arc groove 3, and the support rod The support rod positioning bolts 9 can be screwed into the corresponding support rod positioning holes 7. The above structure can make the three knuckle rings 1 switch between fixed and movable. Compared with the prior art method of fixing the splint with Velcro, it can not only meet the clamping and fixation of the patient in the early stage of wound healing, but also meet the needs of exercise in the middle and late stages of healing. Moreover, when adjusting, only a few support rod positioning bolts 9 need to be turned, and the patient can adjust the knuckle ring 1 by himself without removing it, avoiding the risk of secondary injury to the finger caused by removing the splint when the finger needs to bend and move.

[0041] The inner side of the knuckle ring 1 is connected to an inner lining layer 10, which can be made of breathable material, such as breathable medical gauze, gauze, etc., or a hollow structure to prevent the finger skin from being airtight for a long time.

[0042] Example 2, based on Example 1, as shown in the attached Figure 3-Figure 5 As shown, each of the knuckle rings 1 is composed of two semi-ring-shaped knuckle half rings 11, and each of the knuckle half rings 11 has a support rod arc groove 3 on its outer surface. When the two knuckle half rings 11 are closed to form the knuckle ring 1, the overlapping surface of the two and the vertical center line of the knuckle ring 1 are at a 45° angle, so that one end of the two support rod arc grooves 3 are respectively located at the front and back sides of the knuckle ring 1, and the other ends of the two support rod arc grooves 3 extend clockwise to the upper and lower sides of the knuckle ring 1, that is, after the three knuckle rings 1 are clamped and fixed on the outside of the finger, the support rod 5 can be located at the front and back sides or the upper and lower sides of the finger.

[0043] Example 3, based on Example 2, as shown in the attached Figure 3-Figure 5As shown, a ring sleeve bolt groove 12 is provided on the outer side of each of the knuckle half ring sleeves 11 at the edge of the overlapping surface of the two knuckle half ring sleeves 11, and a ring sleeve screw hole 13 is penetrated inside the inside of each of the ring sleeve bolt grooves 12 toward the inside of the other knuckle half ring sleeve 11, and a ring sleeve closing bolt 14 is installed with an internal thread of the ring sleeve screw hole 13. When in use, a screwdriver can be used to loosen the multiple ring sleeve closing bolts 14 to separate the two knuckle half ring sleeves 11 of each group, and then the fingers can be placed on the inner side of the three knuckle ring sleeves 1, and then the multiple ring sleeve closing bolts 14 are tightened to close the two knuckle half ring sleeves 11 of each group, thereby clamping and fixing the fingers.

[0044] Example 4, based on Example 1, as shown in the attached Figure 1 、 Figure 6 As shown, a traction rope block 15 is installed at the bottom of the right end of the knuckle ring 1 located on the far right, and a traction rope ring 16 is installed at the bottom of the left end of the knuckle ring 1 located on the far left. The traction rope block 15 and the traction rope ring 16 are both fixed by screws and can be removed. A traction rope 17 is fixedly installed on the traction rope block 15, and the other end of the traction rope 17 is fixedly connected to a wrist ring 18 after passing through the traction rope ring 16. In the early stage of healing, after the fracture trauma is initially healed, finger bending exercise is required. However, at this time, the patient's fingers are difficult to move independently, so external force is required. In this embodiment, auxiliary exercise of finger bending is performed by wrapping and fixing the wrist ring 18 and the traction rope 17 at the wrist (which can be fixed by Velcro);

[0045] Specifically, after the three knuckle rings 1 are fixed on the outside of the fingers, the wrist ring 18 can be fixed on the wrist, and then the support rod 5 can be moved to the front and back sides of the fingers. When the fingers are in a straight state, the traction rope 17 is in a taut state. At this time, the entire hand can be turned upward (palm facing down, toward the back of the hand). During this process, the wrist ring 18 can pull the traction rope block 15 through the traction rope 17, so that the rightmost knuckle ring 1 bends toward the palm, that is, drives the fingers to bend;

[0046] When the entire hand is restored to be flush with the arm, the traction rope 17 is relaxed, and the three knuckle rings 1 can be straightened and restored under the elastic force of the torsion spring at the hinge of the support rod 5. By repeating the above operation multiple times, the purpose of passive finger bending exercise can be achieved. When the fingers can bend and move independently, the wrist ring 18 can be removed, and the traction rope block 15, traction rope ring 16 and traction rope 17 can be disassembled.

[0047] Example 5, based on Example 2, as shown in the attached Figure 6-Figure 12As shown, each of the knuckle half rings 11 is composed of two knuckle semicircular plates 101 symmetrically placed at left and right positions. Two guide links 19 are connected between the opposite surfaces of the two knuckle semicircular plates 101, so that most of the skin of the finger is exposed to the air, avoiding the wound being covered for a long time and causing the skin to sweat and be airtight. A toggle arc plate 20 is installed on the outer sides of the two guide links 19 for sliding left and right. The toggle arc plate 20 can move left and right on the two guide links 19. A toggle block 21 is installed on the outer side of the toggle arc plate 20. A soothing pick 22 is installed. The soothing pick 22 is made of soft material, such as a rubber sheet, a silicone sheet, etc. When the knuckle ring 1 is clamped and fixed on the finger, the soothing pick 22 can abut against the skin of the finger. During the wound healing process, itching will occur at the wound site. If scratched with the nail, it will stimulate and affect the wound healing. Therefore, the thumb can be used to push the toggle block 21 back and forth to drive the toggle arc plate 20 to move left and right. The toggle arc plate 20 can be used to scratch the finger skin through the soothing pick 22 to relieve itching. The soothing pick 22 is soft in texture and will not affect the wound healing while relieving itching.

[0048] Example 6, based on Example 5, as shown in the attached Figures 8-12 As shown, two toggle arc grooves 23 are provided on the opposite surfaces of the two knuckle semicircular plates 101, and a toggle slider 24 is installed in each of the toggle arc grooves 23 for arc sliding. A guide link 19 is connected between each two toggle sliders 24 symmetrically positioned on the left and right. A toggle slider spring 25 is fixedly connected between the two side surfaces of the two toggle sliders 24 on one of the knuckle semicircular plates 101 and the two ends of the toggle arc groove 23 corresponding to it. On the basis of Example 5, the toggle arc plate 20 can not only move left and right on the guide link 19, but when the thumb pushes the toggle arc plate 20 for circumferential movement, the toggle arc plate 20 can drive the guide link 19 for circumferential movement, and the guide link 19 drives the toggle slider 24 to slide in the toggle arc groove 23 in the arc direction and stretch or compress the toggle slider spring 25. After releasing the toggle block 21, the toggle slider 24 can be reset under the elastic force of the toggle slider spring 25, thereby achieving circumferential scratching relief on the finger skin.

[0049] Example 7, based on Example 6, as shown in the attached Figure 8 、 Figure 10-12As shown, the inner side surfaces of the two toggle arc grooves 23 on the other knuckle semicircular plate 101 are both provided with a connecting rod moving arc groove 26 toward the inside of the knuckle semicircular plate 101, and the guide connecting rod 19 passes through the corresponding toggle slider 24 and is placed inside the connecting rod moving arc groove 26, and the guide connecting rod 19 and the toggle slider 24 are slidably connected to each other, and the distance between the two knuckle semicircular plates 101 can be adjusted according to the length of the patient's knuckles. When the distance between the two knuckle semicircular plates 101 changes, the guide connecting rod 19 slides relatively between the toggle slider 24 passed through by the guide connecting rod 19, and the guide connecting rod 19 retracts and contracts in the connecting rod moving arc groove 26, thereby achieving the purpose of adjustment. When the toggle arc plate 20 is pushed to perform circumferential relief, the guide connecting rod 19 can move in the arc direction in the connecting rod moving arc groove 26;

[0050] A connecting rod positioning arc groove 27 is penetrated between the outer side surface of the knuckle semicircular plate 101 and the inside of the toggle arc groove 23, a connecting rod positioning screw hole 28 is penetrated on the outer side surface of the toggle slider 24, and a plurality of connecting rod positioning holes 29 are opened on the outer side surface of the guide link 19 along its length direction. The connecting rod positioning screw hole 28 is internally threaded with a connecting rod positioning bolt 30 that can be plugged into the connecting rod positioning hole 29. The other end of the connecting rod positioning bolt 30 passes through the connecting rod positioning arc groove 27 and is placed on the outer side of the knuckle semicircular plate 101. The connecting rod positioning bolt 30 is screwed into one of the connecting rod positioning holes When the guide link 19 is in the hole 29, the guide link 19 can be fixed. At this time, the distance between the two knuckle semicircular plates 101 will not change. When the arc plate 20 is moved to drive the guide link 19 and the slider 24 to move circumferentially, the connecting rod positioning bolt 30 can move in the arc direction in the connecting rod positioning arc groove 27. When the distance between the two knuckle semicircular plates 101 needs to be adjusted, the connecting rod positioning bolt 30 is screwed out of the connecting rod positioning hole 29 to change the distance between the two knuckle semicircular plates 101. Then, the connecting rod positioning bolt 30 is screwed into the connecting rod positioning hole 29 at the corresponding position again to achieve positioning.

[0051] Example 8, based on Example 7, as shown in the attached Figure 13 As shown, each of the support rods 5 includes a support rod body 31, and support rod telescopic grooves 32 are provided at the left and right ends of the support rod body 31. A support telescopic rod 33 is slidably installed in each of the support rod telescopic grooves 32. Each of the support telescopic rods 33 is fixedly connected to the outer side of the corresponding support rod slider 4 by a pin 34. When the distance between the two knuckle semicircular plates 101 changes, the distance between the two support rod sliders 4 also changes. Therefore, the support rod 5 is set to a telescopic structure. When adjusting the distance, the support telescopic rod 33 can be correspondingly telescoped in the support rod telescopic groove 32.

[0052] It should be noted that in the description of the present invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A trauma rehabilitation fixation device for orthopedics, comprising three knuckle rings (1), characterized in that: The three knuckle rings (1) are arranged horizontally, and a joint telescopic sleeve (2) is fixedly connected between the adjacent surfaces of each two knuckle rings (1). Two left-right symmetrical support rod arc grooves (3) are provided in the middle of the front and rear sides of the outer side surface of each knuckle ring (1), and each support rod arc groove (3) extends 90° clockwise along the outer side surface of the knuckle ring (1). A support rod slider (4) is slidably installed in each support rod arc groove (3), and a support rod (5) is fixedly installed between the support rod sliders (4) at the corresponding left and right positions. The support rods (5) on the knuckle ring (1) are hinged to each other through a pin shaft (6), the axis of the pin shaft (6) is perpendicular to the axis of the knuckle ring (1), and a torsion spring is installed at the hinge. A support rod positioning hole (7) is provided at both ends of each support rod arc groove (3), and a support rod screw hole (8) is passed through between the inner side surface of each support rod slider (4) and the outer side surface of the support rod (5). A support rod positioning bolt (9) capable of plugging and matching with the support rod positioning hole (7) is threadedly installed in each support rod screw hole (8), and an inner lining layer (10) is connected to the inner side surface of the knuckle ring (1).

2. The orthopedic trauma rehabilitation fixation device according to claim 1, characterized in that: Each of the knuckle rings (1) is composed of two semi-ring-shaped knuckle half rings (11), and each of the knuckle half rings (11) has a support rod arc groove (3) on its outer surface. When the two knuckle half rings (11) are closed to form the knuckle ring (1), the overlapped surface of the two knuckle half rings and the vertical center line of the knuckle ring (1) are at a 45-degree angle, so that one end of the two support rod arc grooves (3) is respectively located at the front and rear sides of the knuckle ring (1), and the other end of the two support rod arc grooves (3) extends clockwise to the upper and lower sides of the knuckle ring (1).

3. The orthopedic trauma rehabilitation fixation device according to claim 2, characterized in that: The outer surface of each of the finger joint half ring sleeves (11) is provided with a ring sleeve bolt groove (12) located at the edge of the overlapping surface of the two finger joint half ring sleeves (11), and the interior of each of the ring sleeve bolt grooves (12) is penetrated by a ring sleeve screw hole (13) toward the interior of the other finger joint half ring sleeve (11), and the ring sleeve closing bolt (14) is installed in the inner thread of the ring sleeve screw hole (13).

4. The orthopedic trauma rehabilitation fixation device according to claim 1, characterized in that: A traction rope block (15) is installed at the bottom of the right end of the knuckle ring (1) located on the far right, and a traction rope ring (16) is installed at the bottom of the left end of the knuckle ring (1) located on the far left. A traction rope (17) is fixedly installed on the traction rope block (15), and the other end of the traction rope (17) passes through the traction rope ring (16) and is fixedly connected to a wrist ring (18).

5. The orthopedic trauma rehabilitation fixation device according to claim 2, characterized in that: Each of the knuckle semi-rings (11) comprises two knuckle semicircular plates (101) symmetrically placed on the left and right sides, two guide connecting rods (19) are connected between the opposite surfaces of the two knuckle semicircular plates (101), and a toggle arc plate (20) is installed on the outer sides of the two guide connecting rods (19) for sliding left and right, a toggle block (21) is installed on the outer side of the toggle arc plate (20), and a soothing paddle (22) is installed on the inner side of the toggle arc plate (20).

6. The orthopedic trauma rehabilitation fixation device according to claim 5, characterized in that: Two toggle arc grooves (23) are provided on opposite surfaces of the two knuckle semicircular plates (101), and a toggle slider (24) is installed in each of the toggle arc grooves (23) for arc-shaped sliding movement. A guide connecting rod (19) is connected between each two toggle sliders (24) symmetrically positioned on the left and right, and a toggle slider spring (25) is fixedly connected between the two side surfaces of the two toggle sliders (24) on one of the knuckle semicircular plates (101) and the two ends of the corresponding toggle arc groove (23).

7. The orthopedic trauma rehabilitation fixation device according to claim 6, characterized in that: The inner side surfaces of the two toggling arc grooves (23) on the other knuckle semicircular plate (101) are both provided with connecting rod moving arc grooves (26) toward the inside of the knuckle semicircular plate (101); the guide connecting rod (19) passes through the corresponding toggling slider (24) and is placed inside the connecting rod moving arc groove (26); a connecting rod positioning arc groove (27) passes through the outer side surface of the knuckle semicircular plate (101) and the inside of the toggling arc groove (23); a connecting rod positioning screw hole (28) passes through the outer side surface of the toggling slider (24); a plurality of connecting rod positioning holes (29) are provided on the outer side surface of the guide connecting rod (19); a connecting rod positioning bolt (30) capable of plugging and matching with the connecting rod positioning hole (29) is installed on the inner thread of the connecting rod positioning screw hole (28); the other end of the connecting rod positioning bolt (30) passes through the connecting rod positioning arc groove (27) and is placed outside the knuckle semicircular plate (101).

8. The orthopedic trauma rehabilitation fixation device according to claim 7, characterized in that: Each of the support rods (5) comprises a support rod body (31), and support rod telescopic grooves (32) are provided at both left and right ends of the support rod body (31). A support telescopic rod (33) is slidably installed in each of the support rod telescopic grooves (32), and each of the support telescopic rods (33) is fixedly connected to the outer side of the corresponding support rod slider (4) via a pin (34).

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