Lower limb exerciser for hemodialysis patient

Abstract

The utility model discloses a lower limb exerciser for a hemodialysis patient, and relates to the technical field of medical instruments. Two groups of training mechanisms for training the shanks of a patient are symmetrically arranged on one side of the seat plate; each training mechanism comprises a vertically-arranged limiting frame, and the bottom of each limiting frame is fixed to a supporting frame at the bottom of the seat plate. A fulcrum shaft is rotationally arranged at the top end of the limiting frame, one end of the fulcrum shaft is fixed to the output end of a servo motor fixedly arranged on the outer side of the limiting frame, the other end of the fulcrum shaft is fixed to the training frame, a plurality of sets of supporting rollers are arranged on one side of the training frame at intervals, and a plurality of sets of massage protrusions are evenly distributed on the supporting rollers. Each support roller is connected with a driving module for driving the support roller to reciprocate along the length direction of the training frame; on one hand, cramp of the crus of a patient can be avoided, on the other hand, hyperemia of the crus of the patient can be prevented, the relaxation effect is achieved, and the training quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a lower limb exercise device for hemodialysis patients. Background Technology

[0002] Hemodialysis is one of the most effective renal replacement therapies for patients with kidney disease. With advancements in blood purification technology, the quality of life and survival rate of hemodialysis patients are improving year by year. Exercise is an important rehabilitation measure for hemodialysis patients, aiming to improve their physical function and mental state, and thus enhance their quality of life.

[0003] Currently, some hemodialysis patients frequently experience leg cramps during dialysis, so they need to do stretching exercises or massage their legs.

[0004] In the prior art, such as the patent document with publication number CN212593728U, a lower limb exercise device for hemodialysis patients is disclosed. Although this prior art can achieve the effect of exercising the patient's legs, it cannot effectively massage the patient's leg muscles during the exercise process, which can easily cause secondary cramps and congestion. Utility Model Content

[0005] The purpose of this invention is to provide a lower limb exercise device for hemodialysis patients, solving the following technical problems:

[0006] Existing equipment cannot effectively massage the leg muscles during exercise, which can easily cause secondary cramps and congestion.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A lower limb exercise device for hemodialysis patients includes a seat board; two sets of training mechanisms for training the patient's calves are symmetrically arranged on one side of the seat board.

[0009] The training mechanism includes vertically arranged limit frames, with the bottom of the limit frames fixed to the support frame at the bottom of the seat plate;

[0010] The top of the limit frame is rotatably mounted with a support shaft. One end of the support shaft is fixed to the output end of a servo motor fixed on the outside of the limit frame, and the other end is fixed to the training frame. Several sets of support rollers are arranged at intervals on one side of the training frame. Several sets of massage protrusions are evenly arranged on the support rollers. Each support roller is connected to a drive module that drives it to reciprocate along the length of the training frame.

[0011] Preferably, the support roller is located on one side of the two training frames that are close to each other, and the end of the training frame away from the support shaft is also provided with a positioning module for positioning the patient's ankle.

[0012] Preferably, the positioning module includes a positioning seat fixedly arranged on the training frame, the positioning seat having an arc-shaped groove for embedding into the patient's ankle, wherein a tightening strap is fixedly arranged on the positioning seat.

[0013] Preferably, a cushioning pad is adhered in the arc-shaped groove.

[0014] Preferably, each support roller is rotatably arranged on one side of the positioning frame, wherein a guide groove is opened on the training frame along its length direction, and a guide shaft fixed to the positioning frame is slidably embedded in the guide groove.

[0015] Preferably, the drive module includes a gear fixedly mounted on a support shaft, a guide shaft at one end away from the positioning frame fixed to the drive frame, and a rack fixedly mounted at the end of the drive frame to mesh with the gear.

[0016] Preferably, two sets of clamping plates are fixedly arranged on the guide shaft, and the two sets of clamping plates are located on both sides of the training frame.

[0017] The beneficial effects of this utility model are:

[0018] (1) When using the lower limb exercise device of this utility model, the patient places both lower legs on the support rollers of the training mechanism, starts the servo motor to drive the support shaft to rotate back and forth, and the support shaft synchronously drives the training frame to swing back and forth. The swing amplitude is between - degrees. The swinging method achieves the training effect on the patient's lower leg joints. During the swinging process, the drive module drives each support roller to move back and forth along the length of the training frame. Thus, the massage protrusions on the surface of the support roller massage and relax the muscles of the patient's lower leg. On the one hand, it can prevent the patient's lower leg from cramping, and on the other hand, it can prevent the patient's lower leg from congestion, achieve the relaxation effect, and improve the training quality.

[0019] (2) In this utility model, when the drive module drives each support roller to move, it first drives the guide shaft to slide along the guide groove. During the sliding process of the guide shaft, the positioning frame can drive each support roller to move synchronously. The guide groove in this embodiment can not only limit the guide shaft, but also guide its movement, resulting in higher stability. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural diagram of a lower limb exercise device for hemodialysis patients according to this utility model;

[0022] Figure 2 This is a top view schematic diagram of a lower limb exercise device for hemodialysis patients according to this utility model.

[0023] In the diagram: 1. Seat plate; 2. Training mechanism; 3. Servo motor; 4. Support roller; 201. Limiting frame; 202. Training frame; 203. Support shaft; 204. Guide groove; 205. Guide shaft; 206. Clamping plate; 207. Drive frame; 301. Gear; 302. Rack; 401. Massage protrusion; 402. Positioning seat; 403. Arc groove; 404. Tensioning belt; 405. Positioning frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-2 As shown, this utility model is a lower limb exercise device for hemodialysis patients, including a seat board 1; specifically, a support frame is fixedly arranged at the bottom of the seat board 1 to support the seat board 1; during training, the patient can sit on the seat board 1.

[0027] Two sets of training mechanisms 2 for training the patient's lower legs are symmetrically arranged on one side of the seat board 1;

[0028] The training mechanism 2 includes a vertically arranged limiting frame 201, the bottom of which is fixed to the support frame at the bottom of the seat plate 1;

[0029] A support shaft 203 is rotatably mounted on the top of the limiting frame 201. One end of the support shaft 203 is fixed to the output end of the servo motor 3 fixed on the outside of the limiting frame 201, and the other end is fixed to the training frame 202. Several sets of support rollers 4 are arranged at intervals on one side of the training frame 202. Several sets of massage protrusions 401 are evenly arranged on the support rollers 4. Each support roller 4 is connected to a drive module that drives it to reciprocate along the length of the training frame 202.

[0030] It can be explained that when using the lower limb exercise device in this embodiment, the patient places both lower legs on the support rollers 4 of the training mechanism 2, and starts the servo motor 3 to drive the support shaft 203 to rotate back and forth. The support shaft 203 synchronously drives the training frame 202 to swing back and forth with an amplitude between 10 and 90 degrees. The swinging motion achieves the effect of training the patient's lower leg joints. During the swinging process, the drive module drives each support roller 4 to move back and forth along the length of the training frame 202. Thus, the massage protrusions 401 on the surface of the support roller 4 massage and relax the muscles of the patient's lower legs. On the one hand, this can prevent the patient's lower legs from cramping, and on the other hand, it can prevent the patient's lower legs from becoming congested, achieving a relaxation effect and improving the training quality.

[0031] Example 2

[0032] Based on Embodiment 1, the support roller 4 is set on one side of the two training frames 202 that are close to each other. The end of the training frame 202 away from the support shaft 203 is also provided with a positioning module for positioning the patient's ankle. Specifically, in order to prevent the patient's lower leg from falling off the support roller 4 during training, this embodiment uses the positioning module to fix the patient's ankle before training, thereby improving the stability during training.

[0033] As a further embodiment, the positioning module includes a positioning seat 402 fixedly arranged on the training frame 202. The positioning seat 402 has an arc-shaped groove 403 for embedding into the patient's ankle. A tightening strap 404 is fixedly arranged on the positioning seat 402. Specifically, when positioning the patient's ankle, the tightening strap 404 is first pulled to embed the patient's ankle into the arc-shaped groove 403. Under the elastic force of the tightening strap 404, the ankle is fixed in the arc-shaped groove 403.

[0034] Furthermore, to improve the comfort of the patient's ankle, in this embodiment, a cushioning pad is adhered in the arc-shaped groove 403; specifically, the cushioning pad can be made of silicone or rubber.

[0035] In this embodiment, each support roller 4 is rotatably arranged on one side of the positioning frame 405. The training frame 202 has a guide groove 204 along its length direction, and a guide shaft 205 fixed to the positioning frame 405 is slidably embedded in the guide groove 204. It can be explained that when the drive module drives each support roller 4 to move, it first drives the guide shaft 205 to slide along the guide groove 204. During the sliding process of the guide shaft 205, the positioning frame 405 can drive each support roller 4 to move synchronously. In this embodiment, the guide groove 204 can not only limit the guide shaft 205, but also guide its movement, resulting in higher stability.

[0036] The drive module includes a gear 301 fixedly mounted on the support shaft 203, and a guide shaft 205 with one end away from the positioning frame 405 fixed to the drive frame 207. A rack 302 that meshes with the gear 301 is fixedly mounted at the end of the drive frame 207. It can be explained that when the servo motor 3 drives the support shaft 203 to rotate, the support shaft 203 synchronously drives the gear 301 to rotate. The gear 301 can drive the guide shaft 205 to slide in the guide groove 204 through the drive frame 207 by meshing with the rack 302.

[0037] Furthermore, two sets of clamping plates 206 are fixedly arranged on the guide shaft 205, and the two sets of clamping plates 206 are located on both sides of the training rack 202; specifically, in this embodiment, the guide shaft 205 is limited by the arrangement of clamping plates 206 to prevent the guide shaft 205 from detaching from the guide groove 204.

[0038] The working principle of this utility model is as follows: First, pull the tightening strap 404 to embed the patient's ankle into the arc-shaped groove 403. Under the elastic force of the tightening strap 404, the ankle is fixed in the arc-shaped groove 403. Start the servo motor 3 to drive the support shaft 203 to rotate back and forth. The support shaft 203 synchronously drives the training frame 202 to swing back and forth. The swing amplitude is between 10-90 degrees. When the servo motor 3 drives the support shaft 203 to rotate, the support shaft 203 synchronously drives the gear 301 to rotate. The gear 301 can drive the guide shaft 205 to slide in the guide groove 204 through the drive frame 207 by meshing with the rack 302. During the sliding process of the guide shaft 205, the positioning frame 405 can drive each support roller 4 to move synchronously to massage the patient's leg muscles.

[0039] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A lower limb exercise device for hemodialysis patients, comprising a seat (1); characterized in that, Two sets of training mechanisms (2) for training the patient's lower legs are symmetrically arranged on one side of the seat board (1); The training mechanism (2) includes a vertically arranged limiting frame (201), and the bottom of the limiting frame (201) is fixed to the support frame at the bottom of the seat plate (1); A support shaft (203) is rotatably mounted on the top of the limiting frame (201). One end of the support shaft (203) is fixed to the output end of a servo motor (3) fixed on the outside of the limiting frame (201), and the other end is fixed to the training frame (202). Several sets of support rollers (4) are arranged at intervals on one side of the training frame (202). Several sets of massage protrusions (401) are evenly arranged on the support rollers (4). Each support roller (4) is connected to a drive module that drives it to reciprocate along the length of the training frame (202).

2. The lower limb exercise device for hemodialysis patients according to claim 1, characterized in that, The support roller (4) is located on one side of the two training frames (202) that are close to each other. The training frame (202) is also provided with a positioning module at the end away from the support shaft (203) for positioning the patient's ankle.

3. The lower limb exercise device for hemodialysis patients according to claim 2, characterized in that, The positioning module includes a positioning seat (402) fixedly mounted on the training frame (202), and an arc-shaped groove (403) for embedding into the patient's ankle is provided on the positioning seat (402). A tightening strap (404) is fixedly mounted on the positioning seat (402).

4. The lower limb exercise device for hemodialysis patients according to claim 3, characterized in that, A cushioning pad is adhered in the arc-shaped groove (403).

5. The lower limb exercise device for hemodialysis patients according to claim 1, characterized in that, Each support roller (4) is rotatably arranged on one side of the positioning frame (405). A guide groove (204) is opened on the training frame (202) along its length direction. A guide shaft (205) fixed to the positioning frame (405) is slidably embedded in the guide groove (204).

6. The lower limb exercise device for hemodialysis patients according to claim 5, characterized in that, The drive module includes a gear (301) fixedly mounted on a support shaft (203), a guide shaft (205) with one end away from the positioning frame (405) fixed to a drive frame (207), and a rack (302) that meshes with the gear (301) fixedly mounted at the end of the drive frame (207).

7. The lower limb exercise device for hemodialysis patients according to claim 6, characterized in that, Two sets of clamping plates (206) are fixedly arranged on the guide shaft (205), and the two sets of clamping plates (206) are located on both sides of the training frame (202).

Images