Auxiliary device for bending and maintaining joints
By designing an auxiliary device for joint bending and retaining including a fixed plate, a rotating plate, a shell and a coil spring, the problem of difficulty in achieving precise control of joint bending angle in the prior art is solved, and the applicability and control accuracy of the device are improved .
Patent Information
- Application Number
- CN202420626211.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-28
AI Technical Summary
Existing joint bending assistance devices are difficult to achieve precise control when patients need to maintain a set bending angle, resulting in low applicability.
An auxiliary device for joint bending and retaining including a fixing plate, a rotating plate, a housing and a coil spring is designed. By connecting the first screw to the aligned first thread groove and the second thread groove, the rotating plate and the fixing plate are relatively fixed, thereby achieving a set bending angle of the joint.
It effectively improves the applicability of the joint bending assistance device, so that the patient's joints can be maintained at a set bending angle, and enhances the control accuracy and stability of the device.
Smart Images
Figure CN222467428U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical equipment, and in particular to an auxiliary device for joint bending and maintenance. Background Art
[0002] An arthroplasty assist device is a medical device used to help people bend their joints when they have limited or painful joint movement.
[0003] Existing joint bending assist devices usually include a fixed joint, a rotating joint and a torsion spring. One end of the fixed joint is rotatably connected to the other end of the rotating joint. The torsion spring is fixed between the fixed joint and the rotating joint. When in use, the fixed joint and the rotating joint are respectively fixed on both sides of the joint, and the torsion spring is at the joint. When the patient straightens the joint, the rotating joint is driven to rotate and the torsion spring is stretched. When the patient no longer exerts force, the torsion spring is rolled up, driving the rotating joint to rotate. The rotating joint drives one side of the joint to rotate, thereby helping the patient to perform rehabilitation training.
[0004] With respect to the above-mentioned related technologies, when the patient needs the joint to maintain a set bending angle, the joint bending assist device is difficult to achieve the corresponding function because the torsion spring is difficult to control, thereby resulting in the defect of low applicability of the joint bending assist device. Utility Model Content
[0005] In order to improve the applicability of a joint bending assisting device, the present application provides an assisting device for joint bending and maintaining.
[0006] The present application provides an auxiliary device for joint bending and holding using the following technical solution:
[0007] An auxiliary device for joint bending and holding includes a fixed plate and a rotating plate, one side of one end of the fixed plate is bolted with a bottom plate, the bottom plate and the fixed plate are parallel, a fixed rod is fixedly connected to the side of the bottom plate facing the fixed plate, the length direction of the fixed rod is perpendicular to the bottom plate, the fixed rod passes through the fixed plate and is slidably connected to the fixed plate, the rotating plate and the fixed plate are parallel, one end of the rotating plate extends to the fixed rod, the fixed rod passes through the rotating plate and is rotatably connected to the rotating plate, a shell is connected to the side of the rotating plate away from the fixed plate, the shell is open at one end away from the rotating plate, and the fixed rod passes through the bottom wall of the shell and extends to In the shell, the fixed rod and the shell are rotatably connected, and a coil spring is arranged in the shell, one end of the coil spring is connected to one end of the fixed rod in the shell, and the other end of the coil spring is connected to the inner wall of the shell, and a plurality of first thread grooves are opened through the fixed plate near one end of the fixed rod, and the plurality of first thread grooves are arranged in sequence along the circumference of the fixed rod, and a plurality of second thread grooves are opened through the rotating plate near one end of the bottom plate, and the plurality of second thread grooves are arranged in sequence along the circumference of the fixed rod, and a first screw rod is arranged at the first thread groove, and both the first thread groove and the second thread groove are adapted to the thread of the first screw rod.
[0008] By adopting the above technical scheme, the fixed plate and the rotating plate are respectively fixed on both sides of the joint, and the shell is in the middle of the joint. When the patient bends the joint, the rotating plate is driven to rotate, the rotating plate drives the shell to rotate, and the shell drives the reel to reel. When the patient is not exerting force, the reel releases the elastic force, drives the shell to rotate, the shell drives the rotating plate to rotate, and the rotating plate drives one side of the patient's joint to rotate, so as to perform rehabilitation training reciprocatingly. At the same time, when the joint needs to maintain a set bending angle, the first screw is threadedly connected in the aligned first thread groove and second thread groove, so that the rotating plate and the fixed plate are relatively fixed, so that the joint maintains the set bending angle, thereby improving the applicability of the joint bending assist device.
[0009] Optionally, a limiting groove is formed through one end of the fixing plate close to the fixing rod, and a second screw is provided at the second thread groove of the rotating plate, and the second screw is threadably adapted to the second thread groove.
[0010] By adopting the above technical solution, one end of the second screw is connected to one of the multiple second thread grooves, the second screw is in the limiting groove, and the end of the second screw outside the second thread groove can be released from the side wall of the limiting groove. During the rotation of the rotating plate, the rotating plate drives the second screw to rotate. When the second screw abuts the limiting groove, the joint is not easy to continue to bend, so that the second screw can be connected to different second thread grooves to control the bending amplitude of the joint.
[0011] Optionally, a first slot is formed through one end of the fixing rod in the shell, and the coil spring is snap-fitted with the first slot.
[0012] By adopting the above technical solution, the coil spring and the fixing rod are clamped and fixed by clamping one end of the coil spring into the first clamping slot. The setting of the first clamping slot facilitates the connection between the coil spring and the fixing rod.
[0013] Optionally, a third thread groove is formed on the side of the fixing rod away from the bottom plate, a third screw is threadedly connected to the third thread groove of the fixing rod, and one end of the third screw close to the rotating plate abuts against one end of the coil spring in the first slot.
[0014] By adopting the above technical solution, after the coil spring is clamped into the first clamping groove, the third screw is threadedly connected to the third threaded groove, the third screw is close to one end of the fixed rod and abuts against the bottom end of the coil spring, and a force is applied to the coil spring in the direction of the rotating plate, making it difficult for the coil spring to move out of the first clamping groove, thereby improving the stability of the clamping and fixing of the coil spring and the fixed rod.
[0015] Optionally, a cover plate is connected to the opening end of the shell.
[0016] By adopting the above technical solution, after the coil spring is fixed, the cover plate blocks the open end of the shell, making it difficult for foreign objects to enter the shell, and the coil spring is not easily affected.
[0017] Optionally, a second slot is provided on an inner wall of one side of the shell, and the second slot is adapted to be snap-fitted with the coil spring.
[0018] By adopting the above technical solution, the end of the coil spring away from the fixing rod is clamped into the second clamping groove, thereby achieving clamping and fixing of the coil spring and the side wall of the shell.
[0019] Optionally, a first clamping plate is provided on the inner wall of one side of the shell, a first spring is fixedly provided between the first clamping plate and the side wall of the shell, a first movable groove is opened on the inner wall of one side of the shell, a first telescopic rod is fixedly provided between the first clamping plate and the inner bottom wall of the first movable groove, the first spring is sleeved outside the first telescopic rod, the first telescopic rod is composed of a plurality of rod bodies sleeved together, the rod bodies are slidably connected to each other, the first clamping plate is set to an inclined surface on the side away from the rotating plate, the cover plate is fixedly connected to the first push plate on the side facing the rotating plate, and the first push plate is perpendicular to the rotating plate.
[0020] By adopting the above technical solution, after one end of the coil spring is clamped into the second clamping slot, and the end of the coil spring close to the second clamping slot is between the first clamping plate and the side wall of the shell, during the process of closing the cover plate, the cover plate drives the first push plate to move, and the first push plate first abuts against the inclined surface of the first clamping plate, and pushes the first clamping plate to move toward the side wall of the shell, and the first spring is compressed under the guidance of the first telescopic rod, and at the same time, the first clamping plate and the side wall of the shell realize the clamping and fixing of the coil spring, so that the coil spring is not easy to disengage from the second clamping slot.
[0021] Optionally, a third slot is provided on the inner wall of one side of the shell, the third slot is adapted to be clamped with a coil spring, a second clamp is provided on the shell at the third slot, a second movable slot is provided on one side of the third slot, a second spring is fixed between the second clamp and the inner wall of the shell, a second telescopic rod is fixed between the second clamp and the inner bottom wall of the second movable slot, the second spring is sleeved outside the second telescopic rod, the second clamp is set as an inclined surface on the side away from the rotating plate, and the cover plate is fixedly connected to the second push plate on the side facing the rotating plate.
[0022] By adopting the above technical solution, when the rotating plate and the fixed plate are fixed on the other side of the joint, one end of the coil spring is clamped into the third slot. In the process of covering the cover plate, the cover plate drives the second push plate to move, the second push plate and the inclined surface of the second clamping plate abut against each other, and push the second clamping plate to move toward the side wall of the shell body. The second spring is compressed under the guidance of the second telescopic rod, and the second clamping plate and the side wall of the shell clamp and fix one end of the coil spring close to the third slot, so that the coil spring is not easy to disengage from the third slot. The coil spring is clamped to the second slot for rewinding in a different direction than that of the third slot, so that the fixed plate and the rotating plate can be used on opposite sides of the joint, thereby improving the applicability of the joint bending assist device.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. After the joint is bent at a set angle, the first screw is connected to the aligned first thread groove and the second thread groove, and the fixed plate and the rotating plate are relatively fixed, so that the patient's joint can be maintained at the set bending angle, thereby improving the applicability of the joint bending assisting device;
[0025] 2. The third screw exerts a force on one end of the coil spring in the first slot toward the rotating plate, so that the coil spring is not easily removed from the first slot, thereby improving the stability of the connection between the coil spring and the fixed rod;
[0026] 3. The first clamping plate is pushed toward the side wall of the shell by the first push plate. The first clamping plate and the side wall of the shell clamp and fix one end of the coil spring close to the second slot, making it difficult for the coil spring to separate from the second slot, thereby improving the stability of the connection between the coil spring and the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the structure of an auxiliary device for joint bending and holding according to an embodiment of the present application;
[0028] Figure 2 This is a schematic diagram of the structure of the bottom plate in the embodiment of the present application;
[0029] Figure 3 is a schematic diagram of the structure inside the housing in the embodiment of the present application;
[0030] Figure 4 It is a schematic diagram of the structure of the cover plate in the embodiment of the present application;
[0031] Figure 5 It is a structural cross-sectional view of the first clamping plate in the embodiment of the present application.
[0032] In the figure, 1, fixed plate; 11, bottom plate; 12, first thread groove; 13, first screw rod; 14, limit groove; 2, rotating plate; 21, second thread groove; 22, second screw rod; 3, fixed rod; 31, first clamping groove; 32, third thread groove; 33, third screw rod; 4, housing; 41, coil spring; 42, second clamping groove; 43, first clamping plate; 44, first spring; 45, first telescopic rod; 46, third clamping groove; 47, second clamping plate; 48, second spring; 49, second telescopic rod; 5, cover plate; 51, first push plate; 52, second push plate; 6, first movable groove; 7, second movable groove. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-5 This application is described in further detail.
[0034] The embodiment of the present application discloses an auxiliary device for joint bending and maintenance.
[0035] refer to Figure 1 An auxiliary device for joint bending and maintenance includes a fixed plate 1 and a rotating plate 2, one end of the fixed plate 1 is directly below one end of the rotating plate 2, the fixed plate 1 and the rotating plate 2 are parallel, and a shell 4 is connected to the side of the rotating plate 2 away from the fixed plate 1, the upper end of the shell 4 is open, and a cover plate 5 is provided at the open end of the shell 4.
[0036] refer to Figure 2 A bottom plate 11 is arranged on the side of the fixed plate 1 facing away from the rotating plate 2. The bottom plate 11 is parallel to the fixed plate 1. The bottom plate 11 and the fixed plate 1 are bolted. A fixing rod 3 is fixedly connected to the side of the bottom plate 11 facing the fixed plate 1. The length direction of the fixing rod 3 is perpendicular to the bottom plate 11. The end of the fixing rod 3 away from the bottom plate 11 penetrates the rotating plate 2, the fixed plate 1 and the side wall of the shell 4 and extends into the shell 4. The fixing rod 3 is slidably connected to the three. A plurality of first thread grooves 12 are penetrated and opened at one end of the fixed plate 1 close to the bottom plate 11. The plurality of first thread grooves 1 2 are sequentially arranged around the circumference of the bottom plate 11, a plurality of second thread grooves 21 are penetrated and opened at one end of the rotating plate 2 close to the housing 4, and the plurality of second thread grooves 21 are sequentially arranged along the circumference of the bottom plate 11, a first screw 13 is arranged at the first thread groove 12, and both the first thread groove 12 and the second thread groove 21 are thread-matched with the first screw 13, a limiting groove 14 is formed at one end of the fixed plate 1 close to the bottom plate 11, a second screw 22 is arranged at the second thread groove 21, and the second screw 22 is thread-matched with the second thread groove 21.
[0037] The fixing plate 1 and the rotating plate 2 are fixed to the two ends of the joint respectively. When the angle between the fixing plate 1 and the rotating plate 2 needs to be kept unchanged, the first screw 13 is connected to the aligned first thread groove 12 and second thread groove 21, so that the rotating plate 2 and the fixing plate 1 are relatively fixed, and further the patient's joint can maintain the set bending angle. When the rotating plate 2 needs to be rotated relative to the fixing plate 1 within the set range angle, the second screw 22 is connected to one of the multiple second thread grooves 21, and the second screw 22 is located at one end of the second thread groove 21 and can abut against the side wall of the limiting groove 14. During the rotation of the rotating plate 2, the second screw 22 is driven to rotate. When the angle between the rotating plate 2 and the fixing plate 1 reaches the set minimum value, the second screw 22 abuts against the side wall of the limiting groove 14, preventing the rotating plate 2 from continuing to rotate, thereby achieving the ability to control the patient's joint bending angle within the set range.
[0038] refer to Figure 1 and Figure 3 A first card slot 31 is formed on the side wall of one end of the fixing rod 3 in the shell 4, the first card slot 31 penetrates through the side of the fixing rod 3 close to the opening of the shell 4, a third threaded groove 32 is formed on the side of the fixing rod 3 close to the cover plate 5, a third screw 33 is provided outside the cover plate 5, the third screw 33 penetrates through the cover plate 5 and is slidably connected to the cover plate 5, the third screw 33 and the third threaded groove 32 are threadably adapted, a coil spring 41 is provided in the shell 4, one end of the coil spring 41 is snap-fitted with the first card slot 31, and the other end of the coil spring 41 is connected to the inner wall of the shell 4.
[0039] The coil spring 41 is placed positively in the shell 4, one end of the coil spring 41 extends into the first clamping groove 31 and is clamped and fixed with the fixing rod 3, and the other end of the coil spring 41 is connected to the inner wall of the shell 4, covering the cover plate 5, and at the same time, the third screw 33 is locked, and the third screw 33 extends into the third thread groove 32 and abuts against one end of the coil spring 41 in the first clamping groove 31, and squeezes the coil spring 41 toward the inner bottom wall of the shell 4, so that the coil spring 41 is not easy to move out of the shell 4. At the same time, the third screw 33 is away from one end of the coil spring 41 and abuts against the side of the cover plate 5 away from the coil spring 41, realizing the connection and fixation of the cover plate 5 and the shell 4. During the patient's joint bending, the rotating plate 2 drives the shell 4 to rotate, and the shell 4 drives the coil spring 41 to rewind. When the patient is no longer exerting force, the coil spring 41 is released, driving the shell 4 to rotate, the shell 4 drives the rotating plate 2 to rotate, and the rotating plate 2 drives one side of the joint to rotate, thereby reciprocating motion to achieve the patient's rehabilitation training.
[0040] refer to Figure 4 , Figure 5A second slot 42 is provided on the inner wall of one side of the shell 4, and the coil spring 41 and the second slot 42 are snap-fitted together. A first clamping plate 43 is provided on the shell 4 at the second slot 42, and the first clamping plate 43 is located inside the shell 4. A first spring 44 is fixedly provided between the first clamping plate 43 and the side wall of the shell 4. A first movable groove 6 is provided on the side wall of the shell 4, and a first telescopic rod 45 is fixedly provided between the inner bottom wall of the first movable groove 6 and the first clamping plate 43. The first telescopic rod 45 is composed of a plurality of rod bodies that are sleeved and slidably connected to each other. The first spring 44 is sleeved outside the first telescopic rod 45, and a first push plate 51 is fixedly connected to the side of the cover plate 5 facing the rotating plate 2. The first clamping plate 43 is tilted from top to bottom along the direction away from the first spring 44 away from the rotating plate 2.
[0041] The first spring 44 is released from the second slot 42 to release the first push plate 51 from the first clamping plate 43.
[0042] refer to Figure 3 , Figure 4 and Figure 5 A third card slot 46 is provided on the inner wall of one side of the shell 4, and the coil spring 41 is snap-fitted with the third card slot 46. A second clamping plate 47 is provided on the shell 4 at the third card slot 46, and the second clamping plate 47 is located inside the shell 4. A second spring 48 is fixedly provided between the second clamping plate 47 and the side wall of the shell 4. A second movable groove 7 is provided on the side wall of the shell 4, and a second telescopic rod 49 is fixedly provided between the inner bottom wall of the second movable groove 7 and the second clamping plate 47. The second telescopic rod 49 is composed of a plurality of rod bodies that are sleeved and slidably connected to each other. The second spring 48 is sleeved outside the second telescopic rod 49, and a second push plate 52 is fixedly connected to the side of the cover plate 5 facing the rotating plate 2. The second clamping plate 47 is inclined from top to bottom along the direction away from the second spring 48 away from the rotating plate 2.
[0043] One end of the coil spring 41 is clamped into the third clamping groove 46 and is located between the second clamping plate 47 and the side wall of the shell 4. At this time, the coil spring 41 is placed in the opposite direction, and the cover plate 5 is covered. The cover plate 5 drives the second push plate 52 to move. The second push plate 52 abuts against the inclined surface of the second clamping plate 47 and pushes the second clamping plate 47 to move toward the third clamping groove 46. The second spring 48 is compressed under the guidance of the second telescopic rod 49, and the second clamping plate 47 and the side wall of the shell 4 clamp and fix the end of the coil spring 41 close to the third clamping groove 46, thereby completing the fixation of the coil spring 41 and the side wall of the shell 4, and at the same time, it is realized that the fixed plate 1 and the rotating plate 2 are fixed on the opposite sides of the joint and can be used.
[0044] The implementation principle of an auxiliary device for joint bending and maintenance in an embodiment of the present application is as follows: the fixed plate 1 and the rotating plate 2 are respectively fixed at the opposite ends of the joint. When the patient bends the joint, the rotating plate 2 is driven to rotate, and the rotating plate 2 drives the shell 4 to rotate, and the shell 4 drives the coil spring 41 to contract. When the patient no longer exerts force, the coil spring 41 is released, driving the shell 4 to rotate, and the shell 4 drives the rotating plate 2 to rotate, and the rotating plate 2 drives one end of the patient's joint to rotate, thereby performing reciprocating motion. When the patient's joint needs to maintain a set bending angle, the patient first bends the joint and maintains the bending angle, and then the first screw 13 is connected to the aligned first thread groove 12 and second thread groove 21, so that the rotating plate 2 and the fixed plate 1 are relatively fixed, and then the patient's joint can maintain the set bending angle, thereby improving the applicability of the joint bending auxiliary device.
[0045] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An auxiliary device for joint bending and holding, characterized in that: The invention comprises a fixed plate (1) and a rotating plate (2), wherein one side of one end of the fixed plate (1) is bolted with a bottom plate (11), the bottom plate (11) and the fixed plate (1) are parallel, a fixed rod (3) is fixedly connected to the side of the bottom plate (11) facing the fixed plate (1), the length direction of the fixed rod (3) is perpendicular to the bottom plate (11), the fixed rod (3) penetrates the fixed plate (1) and is slidably connected to the fixed plate (1), the rotating plate (2) and the fixed plate (1) are parallel, one end of the rotating plate (2) extends to the fixed rod (3), the fixed rod (3) penetrates the rotating plate (2) and is rotatably connected to the rotating plate (2), the side of the rotating plate (2) facing away from the fixed plate (1) is connected with a shell (4), the end of the shell (4) away from the rotating plate (2) is open, the fixed rod (3) penetrates the bottom wall of the shell (4) and extends into the shell (4), and the fixed rod (3) penetrates the bottom wall of the shell (4) and extends into the shell (4), and is fixed. The fixed rod (3) and the housing (4) are rotatably connected. A coil spring (41) is arranged in the housing (4). One end of the coil spring (41) is connected to one end of the fixed rod (3) in the housing (4). The other end of the coil spring (41) is connected to the inner wall of the housing (4). A plurality of first thread grooves (12) are formed through one end of the fixed plate (1) close to the fixed rod (3). The plurality of first thread grooves (12) are arranged in sequence along the circumference of the fixed rod (3). A plurality of second thread grooves (21) are formed through one end of the rotating plate (2) close to the bottom plate (11). The plurality of second thread grooves (21) are arranged in sequence along the circumference of the fixed rod (3). A first screw rod (13) is arranged at the first thread groove (12). Both the first thread groove (12) and the second thread groove (21) are thread-matched with the first screw rod (13).
2. The auxiliary device for joint bending and holding according to claim 1, characterized in that: A limiting groove (14) is provided through one end of the fixed plate (1) close to the fixed rod (3); a second screw rod (22) is provided at the second thread groove (21) of the rotating plate (2); and the second screw rod (22) and the second thread groove (21) are threadably matched.
3. The auxiliary device for joint bending and holding according to claim 1, characterized in that: The fixing rod (3) is located in the housing (4) and has a first slot (31) extending through one end thereof. The coil spring (41) is snap-fitted with the first slot (31).
4. The auxiliary device for joint bending and holding according to claim 3, characterized in that: A third thread groove (32) is formed on the side of the fixing rod (3) away from the bottom plate (11); a third screw rod (33) is threadedly connected to the third thread groove (32) of the fixing rod (3); and one end of the third screw rod (33) close to the rotating plate (2) abuts against one end of the coil spring (41) in the first clamping groove (31).
5. The auxiliary device for joint bending and holding according to claim 1, characterized in that: The shell (4) is connected to a cover plate (5) at the open end.
6. The auxiliary device for joint bending and holding according to claim 5, characterized in that: A second clamping groove (42) is provided on an inner wall of one side of the housing (4), and the second clamping groove (42) is clamped and adapted to the coil spring (41).
7. The auxiliary device for joint bending and holding according to claim 6, characterized in that: A first clamping plate (43) is arranged at the second clamping groove (42), a first spring (44) is fixedly arranged between the first clamping plate (43) and the side wall of the shell (4), a first movable groove (6) is opened on the inner wall of one side of the shell (4), a first telescopic rod (45) is fixedly arranged between the first clamping plate (43) and the inner bottom wall of the first movable groove (6), the first spring (44) is sleeved outside the first telescopic rod (45), the first telescopic rod (45) is composed of a plurality of rod bodies sleeved together, and the rod bodies are slidably connected to each other, the side of the first clamping plate (43) away from the rotating plate (2) is arranged as an inclined surface, and the side of the cover plate (5) facing the rotating plate (2) is fixedly connected with a first push plate (51), and the first push plate (51) is perpendicular to the rotating plate (2).
8. The auxiliary device for joint bending and holding according to claim 5, characterized in that: A third clamping groove (46) is provided on the inner wall of one side of the shell (4), and the third clamping groove (46) and the coil spring (41) are clamped and adapted. The shell (4) is provided with a second clamping plate (47) at the third clamping groove (46). The shell (4) is provided with a second movable groove (7) on one side of the third clamping groove (46). A second spring (48) is fixedly provided between the second clamping plate (47) and the inner wall of the shell (4). A second telescopic rod (49) is fixedly provided between the second clamping plate (47) and the inner bottom wall of the second movable groove (7). The second spring (48) is sleeved outside the second telescopic rod (49). The side of the second clamping plate (47) away from the rotating plate (2) is set as an inclined surface, and the side of the cover plate (5) facing the rotating plate (2) is fixedly connected with a second push plate (52).