Precise fixing brace for wrist joint fracture

Abstract

The utility model provides an accurate fixing brace for wrist joint fracture, which relates to the field of medical auxiliary instruments for traumatology department and comprises a brace unit, a fastening component is arranged on the surface of the brace unit, and a first adjusting component and a second adjusting component are respectively arranged at the top and the bottom of the brace unit; the fixing pressure can be conveniently mastered by a person in real time through the pressure sensor, the fixing tightness can be adjusted according to the pressure condition, the connecting plate is rotated, the connecting plate drives the sleeve plate and the movable disc to move, the sleeve plate drives the palm rest and the palm of a patient to adjust the ulnar deviation and radial deviation fixing positions, and the fixing effect is good. The output end of the electric push rod drives the connecting rod and the frame rod to move, the frame rod drives the push plate to move towards one side around the axis of the rotating shaft, then the push plate drives the fixing rod, the palm rest and the palm of the patient to conduct palm bending or back stretching movement, and therefore the proper fixing position can be better adjusted according to the fracture condition of the patient. The later-stage reduction and recovery of the fracture part of the patient are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of medical auxiliary devices, specifically a wrist joint fracture precision fixation brace. Background Technology

[0002] Wrist fractures are common in trauma surgery. External fixation of wrist fractures mainly involves non-invasive methods such as plaster casts and splints to fix the fracture site. Plaster casts provide a stable fixation environment and prevent further displacement of the fracture site. Splint fixation is simple and quick to use, and is fixed to the affected limb with ropes to prevent movement of the fracture site.

[0003] In existing technologies, plaster casts are difficult to adjust in tightness during use. Generally, as soft tissue swelling subsides, the plaster tends to loosen, leading to cast displacement. Splint fixation requires periodic adjustment of the bandages because splints are prone to loosening, which can cause redislocation at the fracture site. Furthermore, the fixation position for wrist fractures usually depends on the specific location and type of fracture. Fixing the wrist in specific positions such as radial deviation, ulnar deviation, palmar flexion, and dorsiflexion can best meet the requirements of anatomical reduction. Therefore, plaster casts and splints often cannot adequately adapt to the specific fixation positions required for different fracture types, thus reducing their reduction effectiveness. Moreover, the wrist joint generally requires moderate micro-movement after about a month of stable immobilization to prevent joint stiffness. This micro-movement is crucial for the later recovery of wrist joint function, which plaster casts and splints cannot meet, easily affecting the patient's rehabilitation outcome.

[0004] In summary, this utility model provides a precise fixation brace for wrist joint fractures to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A precise fixation brace for wrist fractures includes a brace unit. The surface of the brace unit is provided with a fastening component, and the top and bottom of the brace unit are respectively provided with a first adjustment component and a second adjustment component. The brace unit includes a fixation bracket, and the inner wall of the fixation bracket is provided with a pressure sensor. A palm rest is provided on one side of the fixation bracket, and a connecting strap connects the palm rest and the fixation bracket. A tightening strap is connected to the surface of the palm rest. The fastening component includes a fixation plate and a threaded plate. A bolt is movably connected to the top of the fixation plate. The bolt passes through the inner cavity of the threaded plate and is threadedly connected to the inner cavity of the threaded plate.

[0007] The first adjustment component includes a base frame, with a movable plate movably connected to the upper end of the base frame's inner cavity. A positioning rod is fixedly connected to the bottom of the movable plate. A movable disc is movably connected to the bottom of the base frame's inner cavity via a bearing. A spring is movably connected to the bottom of the movable disc's inner cavity via a bearing, and the top of the spring is fixedly connected to the movable plate. A positioning hole is provided on the top of the movable disc, and a connecting plate is fixedly connected to the surface of the movable disc. A sleeve plate is movably connected to the other end of the connecting plate via a rotating shaft. A sliding plate is slidably connected to the inner cavity of the sleeve plate, and the other end of the sliding plate is movably connected to the palm rest via a rotating shaft. The second adjustment component includes an electric push rod. A connecting rod is movably connected to the output shaft of the electric push rod via a rotating shaft, and a support rod is movably connected to the other end of the connecting rod via a rotating shaft. A push plate is movably connected to the other end of the support rod via a rotating shaft, and a fixed rod is movably connected to the bottom of the push plate.

[0008] Furthermore, in this utility model, the surface of the tightening band is fixed with Velcro, and the male and female sides of the Velcro are bonded together. The top of the fixing rod is fixedly connected to the palm rest, and the push plate is movably connected to the palm rest through a rotating shaft. The bottom of the positioning rod extends to the inner cavity of the positioning hole and is movably connected to the inner cavity of the positioning hole.

[0009] Furthermore, in this utility model, a display screen is provided on the top of the upper fixed bracket, there are two fixed brackets, the fixed plate is fixedly connected to the upper fixed bracket, the threaded plate is fixedly connected to the lower fixed bracket, the bottom of the base frame is fixedly connected to the upper fixed bracket, and the electric push rod is movably connected to the lower fixed bracket through a rotating shaft.

[0010] Furthermore, in this utility model, the surface of the fixed support is provided with ventilation grooves, the inner wall of the fixed support is fixedly connected with a soft pad, and the side of the soft pad away from the fixed support contacts the patient's wrist and arm. Both the fixed support and the palm support are made of polyethylene plastic.

[0011] Furthermore, in this utility model, a T-shaped groove is provided on one side of the inner cavity of the base frame, and a T-shaped block is fixedly connected to one side of the movable plate. The T-shaped block is located in the inner cavity of the T-shaped groove and is slidably connected to the inner cavity of the T-shaped groove.

[0012] Furthermore, in this utility model, the bottom of the push plate is provided with an arc-shaped groove, and the fixing rod passes through the inner cavity of the arc-shaped groove and is slidably connected with the inner cavity of the arc-shaped groove.

[0013] Beneficial effects: This utility model has the following beneficial effects:

[0014] This invention provides support for the patient's wrist and arm with a fixed support and for the patient's hand with a palm support. A tightening strap secures the palm support to the patient's hand. A bolt rotates into the inner cavity of a threaded plate, further fixing the fixed support to the patient's wrist and arm. A pressure sensor monitors the fixation pressure in real time, allowing for accurate monitoring and improving both comfort and treatment effectiveness. An upward-moving plate stretches a spring, and rotating a connecting plate moves a sleeve and a movable disc, allowing the sleeve to adjust the palm support and the patient's hand for ulnar and radial deviation fixation. The output of an electric push rod moves a connecting rod and a support rod, causing the support rod to move a push plate around its axis to one side. This push plate then moves the fixation rod, palm support, and patient's hand in palmar flexion or extension, allowing for better adjustment of the fixation position based on the patient's fracture condition, facilitating subsequent fracture reduction and recovery. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main view structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from a low angle.

[0017] Figure 3 This is a schematic diagram of the structure of the base frame and movable plate of this utility model in their separated state;

[0018] Figure 4 This is a schematic diagram of the electric push rod, push plate, and connecting rod connection structure of this utility model.

[0019] In the picture:

[0020] 1. Support unit; 11. Fixed bracket; 111. Ventilation groove; 12. Connecting strap; 13. Palm support; 14. Fastening strap; 2. Fastening assembly; 21. Fixed plate; 22. Threaded plate; 23. Bolt; 3. First adjustment assembly; 31. Base frame; 311. T-slot; 32. Movable plate; 321. T-block; 33. Positioning rod; 34. Movable disc; 35. Spring; 36. Positioning hole; 37. Connecting plate; 38. Sleeve plate; 4. Second adjustment assembly; 41. Electric push rod; 42. Push plate; 421. Arc groove; 43. Fixed rod; 44. Connecting rod; 45. Frame rod; 5. Pressure sensor; 6. Display screen. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a precise fixation brace for wrist fractures, including a brace unit 1. The surface of the brace unit 1 is provided with a fastening component 2, and the top and bottom of the brace unit 1 are respectively provided with a first adjustment component 3 and a second adjustment component 4. The brace unit 1 includes a fixed support 11, and the inner wall of the fixed support 11 is provided with a pressure sensor 5. A palm support 13 is provided on one side of the fixed support 11, and a connecting strap 12 is connected between the palm support 13 and the fixed support 11. A tightening strap 14 is connected to the surface of the palm support 13. The fastening component 2 includes a fixed plate 21 and a threaded plate 22. The top of the fixed plate 21 is movably connected with a bolt 23, which penetrates the inner cavity of the threaded plate 22 and is threadedly connected to the inner cavity of the threaded plate 22.

[0024] The first adjustment component 3 includes a base frame 31, and a movable plate 32 is movably connected to the upper end of the inner cavity of the base frame 31. A positioning rod 33 is fixedly connected to the bottom of the movable plate 32. A movable disk 34 is movably connected to the bottom of the inner cavity of the base frame 31 via a bearing. A spring 35 is movably connected to the bottom of the inner cavity of the movable disk 34 via a bearing. The top of the spring 35 is fixedly connected to the movable plate 32. A positioning hole 36 is provided on the top of the movable disk 34. A connecting plate 37 is fixedly connected to the surface of the movable disk 34. A sleeve plate 38 is movably connected to the other end of the connecting plate 37 via a rotating shaft. A sliding plate is slidably connected to the inner cavity of the sleeve plate 38. The other end of the sliding plate is movably connected to the palm rest 13 via a rotating shaft. The second adjustment component 4 includes an electric push rod 41. A connecting rod 44 is movably connected to the output shaft of the electric push rod 41 via a rotating shaft. A support rod 45 is movably connected to the other end of the connecting rod 44 via a rotating shaft. A push plate 42 is movably connected to the other end of the support rod 45 via a rotating shaft. A fixed rod 43 is movably connected to the bottom of the push plate 42.

[0025] like Figure 1-4As shown, the patient's wrist and arm are inserted into the fixation support 11, and the patient's palm is placed in the palm support 13. The fixation support 11 supports the patient's wrist and arm, and the palm support 13 supports the patient's palm. The tightening strap 14 can fix the palm support 13 to the patient's palm. The bolt 23 rotates into the inner cavity of the threaded plate 22. Since the bolt 23 and the threaded plate 22 are threadedly connected, the bolt 23 rotates in the inner cavity of the threaded plate 22, which drives the two fixation supports 11 to move closer together, thereby fixing the patient's wrist and arm. During the fixation process, the pressure sensor 5 can monitor the fixation pressure in real time, allowing the person to monitor the fixation pressure and adjust the fixation tightness according to the pressure. This not only improves wearing comfort but also improves treatment efficacy. If radial or ulnar deviation fixation is required, the movable plate 32 is pulled upward to stretch and deform the spring 35, allowing the connecting plate 37 to rotate left and right. The connecting plate 37 then moves the sleeve plate 38 and the movable disc 34, causing the sleeve plate 38 to move the palm support 13, thus allowing the patient's hand to adjust for ulnar or radial deviation. If dorsiflexion or palmar flexion fixation is required, the output end of the electric push rod 41 drives the connecting rod 44 and the frame rod 45, causing the frame rod 45 to move the push plate 42 around the axis of rotation to one side. The push plate 42 then moves the fixation rod 43, the palm support 13, and the patient's hand to perform palmar flexion or dorsiflexion movements, thereby better adjusting the appropriate fixation position according to the patient's fracture condition, facilitating the subsequent reduction and recovery of the fracture site.

[0026] Example 2

[0027] Reference Figure 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0028] In this embodiment, the surface of the tightening band 14 is fixed with Velcro, and the male and female sides of the Velcro are bonded together. The top of the fixing rod 43 is fixedly connected to the palm support 13, and the push plate 42 is movably connected to the palm support 13 through a rotating shaft. The bottom of the positioning rod 33 extends to the inner cavity of the positioning hole 36 and is movably connected to the inner cavity of the positioning hole 36.

[0029] The top of the upper fixed support 11 is equipped with a display screen 6. The display screen 6, pressure sensor 5 and electric push rod 41 are all powered by batteries. There are two fixed supports 11. The fixed plate 21 is fixedly connected to the upper fixed support 11, the threaded plate 22 is fixedly connected to the lower fixed support 11, the bottom of the base frame 31 is fixedly connected to the upper fixed support 11, and the electric push rod 41 is movably connected to the lower fixed support 11 through a rotating shaft.

[0030] The surface of the fixed support 11 is provided with ventilation grooves 111, and the inner wall of the fixed support 11 is fixedly connected with a soft pad. The side of the soft pad away from the fixed support 11 is in contact with the patient's wrist and arm. Both the fixed support 11 and the palm support 13 are made of polyethylene plastic.

[0031] like Figure 1-4 As shown, by pulling the tension strap 14, its length is adjusted until the tension strap 14 drives the palm support 13 to contact the patient's palm, allowing the Velcro on the surface of the tension strap 14 to adhere to the palm, thus facilitating the fixation of the palm support 13 to the patient's palm. Since the push plate 42 and the palm support 13 are connected by a pivot, the push plate 42 will move around the pivot axis during movement, thereby limiting the movement trajectory of the push plate 42. The positioning rod 33 enters the inner cavity of the positioning hole 36 downwards, thereby positioning the movable plate 34 and preventing the movable plate 34 from rotating on its own, ensuring its stability. The display screen 6, pressure sensor 5, and electric push rod 41 are all connected to the battery, thus facilitating the operation of the electric... The battery powers the display screen 6, pressure sensor 5, and electric push rod 41, enabling them to operate. Both the threaded plate 22 and the fixing plate 21 are connected to the fixed support 11, so that when the fixing plate 21 and the threaded plate 22 move, they can drive the fixed support 11 to move synchronously. Since the electric push rod 41 is connected to the palm support 13 through the rotating shaft, the electric push rod 41 can generate an angle with the connecting rod 44 during its movement. This allows the electric push rod 41 to drive the connecting rod 44 and the frame rod 45 to push the push plate 42, so that the push plate 42 can drive the palm support 13 to move up and down for adjustment. The ventilation groove 111 can improve the breathability of the fixed support 11, and the soft pad is in contact with the patient's wrist and arm, which can greatly improve the patient's comfort when wearing it.

[0032] Example 3

[0033] Reference Figure 3 and 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0034] In this embodiment, a T-shaped groove 311 is provided on one side of the inner cavity of the base frame 31, and a T-shaped block 321 is fixedly connected to one side of the movable plate 32. The T-shaped block 321 is located in the inner cavity of the T-shaped groove 311 and is slidably connected to the inner cavity of the T-shaped groove 311.

[0035] The bottom of the push plate 42 is provided with an arc-shaped groove 421, and the fixing rod 43 passes through the inner cavity of the arc-shaped groove 421 and is slidably connected with the inner cavity of the arc-shaped groove 421.

[0036] like Figure 3 and 4As shown, when the movable plate 32 is reset by the reset force of the spring 35, the movable plate 32 drives the T-shaped block 321 to slide along the inner cavity of the T-shaped groove 311, thereby limiting the movement trajectory of the movable plate 32 and preventing misalignment. When the palm support 13 and the patient's palm move left and right by the first adjustment component 3, the palm support 13 will drive the fixed rod 43 to slide along the inner cavity of the arc groove 421. Thus, the arc groove 421 can limit the palm support 13 during the limiting process of the fixed rod 43, ensuring the stability of the palm support 13 and the fixed rod 43 during movement and preventing misalignment.

[0037] In use, first, the patient's wrist and arm are inserted into the fixing support 11, and the patient's palm is placed in the palm support 13. The fixing support 11 supports the patient's wrist and arm, and the palm support 13 supports the patient's palm. Next, the tightening strap 14 is pulled to adjust its length until the tightening strap 14 brings the palm support 13 into contact with the patient's palm. Then, the Velcro on the surface of the tightening strap 14 is fastened to secure the palm support 13 to the patient's palm. Afterward, the bolt 23 is rotated. Since the bolt 23 is threadedly connected to the threaded plate 22, the bolt 23 rotates within the cavity of the threaded plate 22, thus... The two fixation plates 11 are brought closer together until they are in close contact with the patient's wrist and arm, thus fixing the patient's wrist and arm. During the fixation process, the battery powers the pressure sensor 5 and the display screen 6. The pressure sensor 5 can monitor the fixation pressure in real time, and the pressure data monitored by the pressure sensor 5 is displayed on the display screen 6, making it easy for personnel to view the pressure value. This allows for real-time monitoring of the fixation pressure, and the tightness of the fixation can be adjusted according to the pressure situation, which not only improves wearing comfort but also improves the later recovery effect. When radial or ulnar deviation fixation is required, the movable plate 32 is pulled upwards. Spring 35 stretches and deforms, causing positioning rod 33 to release its positioning of movable disc 34. Then, connecting plate 37 can rotate left and right. Connecting plate 37 moves sleeve 38 and movable disc 34, causing sleeve 38 to move palm support 13 and the patient's hand left and right, thus allowing adjustment of ulnar or radial deviation of the patient's hand. After adjustment, movable plate 32 is released. The return force of spring 35 causes movable plate 32 to return downwards. Movable plate 32 then moves positioning rod 33 downwards into the cavity of positioning hole 36, thus positioning movable disc 34 and ensuring stability after adjustment. Dorsiflexion or palmar flexion fixation is required. When the electric push rod 41 is powered by a battery, the output end of the electric push rod 41 drives the connecting rod 44 and the frame rod 45 to move. Since the electric push rod 41 is connected to the palm support 13 through a rotating shaft, the electric push rod 41 can generate an angle with the connecting rod 44 during the movement, which will drive the connecting rod 44 and the frame rod 45 to push the push plate 42, causing the push plate 42 to move to one side around the axis of rotation. In turn, the push plate 42 will drive the fixation rod 43, the palm support 13 and the patient's palm to perform palmar flexion or dorsiflexion movements, so as to better adjust the appropriate fixation position according to the patient's fracture condition, which is conducive to the reduction and recovery of the fracture site in the later stage.

[0038] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A precise wrist fracture fixation brace, comprising a brace unit (1), characterized in that: The surface of the support unit (1) is provided with a fastening assembly (2), and the top and bottom of the support unit (1) are provided with a first adjusting assembly (3) and a second adjusting assembly (4) respectively, the support unit (1) comprises a fixed support (11), and the inner wall of the fixed support (11) is provided with a pressure sensor (5), one side of the fixed support (11) is provided with a palm support (13), and the palm support (13) and the fixed support (11) are connected with a connecting belt (12), the surface of the palm support (13) is connected with a tightening belt (14), the fastening assembly (2) comprises a fixed plate (21) and a threaded plate (22), the top of the fixed plate (21) is movably connected with a bolt (23), the bolt (23) penetrates the inner cavity of the threaded plate (22), and is threadedly connected with the inner cavity of the threaded plate (22); The first adjusting assembly (3) comprises a chassis (31), and the upper end of the inner cavity of the chassis (31) is movably connected with a movable plate (32), the bottom of the movable plate (32) is fixedly connected with a positioning rod (33), the bottom of the inner cavity of the chassis (31) is movably connected with a movable disc (34) through a bearing, the bottom of the inner cavity of the movable disc (34) is movably connected with a spring (35) through a bearing, and the top of the spring (35) is fixedly connected with the movable plate (32), the top of the movable disc (34) is provided with a positioning hole (36), and the surface of the movable disc (34) is fixedly connected with a connecting plate (37), the other end of the connecting plate (37) is movably connected with a cover plate (38) through a rotating shaft, the inner cavity of the cover plate (38) is slidably connected with a sliding plate, and the other end of the sliding plate is movably connected with the palm support (13) through a rotating shaft, and the second adjusting assembly (4) comprises an electric push rod (41), the output shaft of the electric push rod (41) is movably connected with a connecting rod (44) through a rotating shaft, and the other end of the connecting rod (44) is movably connected with a frame rod (45) through a rotating shaft, the other end of the frame rod (45) is movably connected with a push plate (42) through a rotating shaft, and the bottom of the push plate (42) is movably connected with a fixed rod (43).

2. The precise fixation brace for wrist fracture as claimed in claim 1, wherein: The surface of the tightening belt (14) is fixedly connected with a magic tape, and the primary and secondary surfaces of the magic tape are adhered, the top of the fixed rod (43) is fixedly connected with the palm support (13), and the push plate (42) is movably connected with the palm support (13) through a rotating shaft, and the bottom of the positioning rod (33) extends into the inner cavity of the positioning hole (36) and is movably connected with the inner cavity of the positioning hole (36).

3. The precise fixation brace for wrist fracture as claimed in claim 1, wherein: The top of the upper end of the fixed support (11) is provided with a display screen (6), the number of the fixed support (11) is two, the fixed plate (21) is fixedly connected with the upper end of the fixed support (11), the threaded plate (22) is fixedly connected with the lower end of the fixed support (11), the bottom of the chassis (31) is fixedly connected with the upper end of the fixed support (11), and the electric push rod (41) is movably connected with the lower end of the fixed support (11) through a rotating shaft.

4. The precise fixation brace for wrist fracture as claimed in claim 1, wherein: The surface of the fixed support (11) is provided with a breathable groove (111), the inner wall of the fixed support (11) is fixedly connected with a soft pad, and the side, away from the fixed support (11), of the soft pad is in contact with the wrist and arm of the patient; the fixed support (11) and the palm support (13) are made of polyethylene plastic.

5. The precise fixation brace for wrist fracture as claimed in claim 1, wherein: A T-shaped groove (311) is formed in one side of the inner cavity of the bottom frame (31), one side of the movable plate (32) is fixedly connected with a T-shaped block (321), the T-shaped block (321) is located in the inner cavity of the T-shaped groove (311), and is in sliding connection with the inner cavity of the T-shaped groove (311).

6. The precise wrist fracture fixation orthosis of claim 1, wherein: An arc-shaped groove (421) is formed in the bottom of the push plate (42), the fixed rod (43) penetrates through the inner cavity of the arc-shaped groove (421), and is in sliding connection with the inner cavity of the arc-shaped groove (421).

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