A limb muscle rehabilitation device for patients with sarcopenia

By designing a limb muscle rehabilitation device for patients with sarcopenia, using airbag components and foot support components to provide leg lifting power, the fatigue problem of patients with sarcopenia when walking is solved, and the exercise time and rehabilitation effect of leg muscles are increased.

CN118105281BActive Publication Date: 2026-01-30ZHEJIANG UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410232588.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2026-01-30
Estimated Expiration
2044-02-29

AI Technical Summary

Technical Problem

Patients with sarcopenia experience fatigue when walking due to insufficient leg muscle strength, resulting in insufficient exercise time.

Method used

Design a limb muscle rehabilitation device for patients with sarcopenia, including an airbag assembly and a foot support assembly. The airbag assembly provides leg lifting power through air pressure changes, and the foot support assembly assists in leg lifting through springs and a sleeve structure, forming a pressing effect to reduce muscle fatigue.

Benefits of technology

Through the synergistic effect of the airbag assembly and the support leg assembly, the patient's fatigue during walking is reduced, walking distance and exercise time are increased, and the rehabilitation effect of leg muscles is enhanced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118105281B_ABST
    Figure CN118105281B_ABST
Patent Text Reader

Abstract

This invention discloses a limb muscle rehabilitation device for patients with sarcopenia, including an airbag assembly, a plate assembly connected to the lower part of the airbag assembly, and a support leg assembly connected to the plate assembly. The support leg assembly includes a support leg body and a sleeve located radially outside the support leg body. The upper end of the sleeve is fixedly connected to the plate assembly. The support leg body can move up and down along the inner wall of the sleeve. The lower end of the support leg body extends out of the bottom of the sleeve. A spring is fitted on the outer wall of the support leg body, and an extension is provided on the outer wall of the support leg body. The lower end of the spring abuts against the upper end of the extension. When the support leg body moves upward, it can compress the spring. This invention provides a limb muscle rehabilitation device for patients with sarcopenia, which helps reduce fatigue during exercise and increases rehabilitation exercise time.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of sarcopenia rehabilitation training equipment technology, and in particular to a limb muscle rehabilitation device for sarcopenia patients. Background Technology

[0002] Sarcopenia is an age-related muscle degeneration condition. Patients with sarcopenia experience significant muscle weakness, leading to slow movement and a higher risk of falls. While walking can slow leg muscle decline, patients with sarcopenia often experience difficulty lifting their legs and fatigue due to insufficient leg strength, resulting in inadequate exercise time. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a limb muscle rehabilitation device for patients with sarcopenia, which helps to reduce the fatigue experienced by patients during exercise and increase the rehabilitation exercise time.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A limb muscle rehabilitation device for patients with sarcopenia includes an airbag assembly, a plate assembly connected to the lower part of the airbag assembly, and a foot assembly connected to the plate assembly. The foot assembly includes a foot body and a sleeve located radially outside the foot body. The upper end of the sleeve is fixedly connected to the plate assembly. The foot body can move up and down along the inner wall of the sleeve. The lower end of the foot body extends out of the bottom of the sleeve. A spring is sleeved on the outer wall of the foot body. An extension is provided on the outer wall of the foot body. The lower end of the spring abuts against the upper end of the extension. The spring can be compressed when the foot body moves upward.

[0006] The airbag assembly includes an airbag body and a first support body located on the outer periphery of the airbag body, with the inner wall of the first support body bonded to the outer wall of the airbag body.

[0007] The airbag assembly also includes a second support body, which is inserted into the lower end of the airbag body. The outer wall of the second support body is bonded to the inner wall of the airbag body. A cover is fixedly connected to the top of the support body, which extends out of the upper end of the insert plate assembly. The cover can move up and down along the inner wall of the second support body. The airbag body includes a protrusion that extends into the top of the second support body. When the support body moves upward, the cover can abut against the bottom of the protrusion and compress the protrusion upward, thereby reducing the internal volume of the airbag body.

[0008] Connecting rods are installed on both sides of the bottom of the insert assembly, with the connecting rods axially facing the axis of the support body, and connecting plates connecting the two connecting rods.

[0009] The connecting piece is located at the bottom of the connecting rod, and both ends of the connecting piece are detachably connected to the connecting rods on both sides.

[0010] The insert assembly has first through holes on both sides. The airbag body includes an extension bladder at the bottom and a connecting part at the top. The connecting part passes through the first through hole and the bottom of the extension bladder is located below the first through hole.

[0011] The insert assembly includes a first insert plate and a second insert plate. The first insert plate has an insertion hole, and the second insert plate has an insertion rod that can be inserted into the insertion hole so that the first insert plate and the second insert plate can be spliced ​​together to form an insert assembly.

[0012] The airbag body has multiple protrusions.

[0013] The first support structure is made of rigid plastic.

[0014] The airbag body is equipped with an air valve.

[0015] The beneficial effects of this invention are:

[0016] By providing leg-lifting power for patients with sarcopenia when walking, this method can compensate for the lack of leg muscle strength, thereby reducing fatigue during walking exercises, increasing walking distance and exercise duration, and enhancing the rehabilitation effect of leg muscles.

[0017] The support body that provides leg-lifting power for patients with sarcopenia moves up and down, while the airbag body constantly changes the force applied to the calf, creating a pressing effect that can reduce muscle fatigue, thereby increasing the duration of continuous walking exercise and enhancing the rehabilitation effect of leg muscles. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of an embodiment;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a cross-sectional view of the insert assembly in the embodiment;

[0021] Figure 4 for Figure 1 A cross-sectional view along the MM direction;

[0022] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 This is a cross-sectional view showing the connection piece and the support body in the embodiment.

[0024] In the figure: airbag assembly 1, airbag body 11, air valve 111, extension bladder 112, connecting part 1121, protrusion 113, protrusion part 114, first support body 12, second support body 13, insert plate assembly 2, first insert plate 21, insertion hole 211, second insert plate 22, insert rod 221, first through hole 23, second through hole 24, support leg assembly 3, support leg body 31, cover part 311, extension part 312, sleeve body 32, sealing plate 321, spring 33, connecting rod 4, connecting piece 5, through hole part 51, lower limb 6, lower leg part 61, foot 62, heel part 621. Detailed Implementation

[0025] The technical solution of the present invention will be further described below through embodiments and in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown, a limb muscle rehabilitation device for patients with sarcopenia includes an airbag assembly 1. The airbag body 11 is made of soft silicone material. The airbag assembly 1 includes the airbag body 11 and a first support body 12 located on the outer periphery of the airbag body 11. The airbag body 11 includes an air valve 111 located at the top, through which air can be inflated into the airbag body 11 or the air inside the airbag body 11 can be expelled. When in use, the airbag body 11 is inserted into the lower leg 61 of the lower limb 6 in the uninflated state. After inflation, the airbag body 11 wraps around the outer periphery of the lower leg 61. The lower end of the airbag body 11 extends to the ankle below the lower leg 61. As the lower leg 61 approaches the ankle, the muscles of the lower leg 61 gradually decrease, and its outer diameter gradually shrinks. Figure 1 As shown, the left side of the calf 61 forms an arc extending downward to the right. The corresponding airbag body 11 is shaped to match the calf 61. After the airbag body 11 is inflated, the arc extending downward to the right formed by the left side of the calf 61 creates resistance to the upward movement of the airbag body 11, thus limiting the upward movement of the airbag body 11 and preventing the airbag body 11 from shifting upward during use. At the same time, after the airbag body 11 wraps around the calf 61, the airbag body 11 is also subject to frictional resistance from the calf 61, thus limiting the position of the airbag body 11 from shifting.

[0027] like Figure 2 As shown, the outer wall of the airbag body 11 corresponding to the arc surface extending downward to the right on the left side of the calf 61 is provided with multiple protrusions 114. The protrusions 114 extend along the outer wall of the airbag body 11 towards the side closer to the calf 61. The protrusions 114 are hemispherical and can produce a pressing effect on the muscles on the left side of the calf 61 to promote blood circulation and reduce fatigue during exercise.

[0028] like Figure 1As shown, the first support body 12 is a rigid material (such as rigid plastic) and an outer frame structure. The first support body 12 is continuous from top to bottom. The inner wall of the first support body 12 is bonded to the outer wall of the airbag body 11. By setting the first support body 12, when the air pressure inside the airbag body 11 increases, the airbag body 11 mainly expands on the side wrapped around the calf 61, thereby further strengthening the wrapping of the calf 61 muscles, promoting blood circulation, preventing lactic acid accumulation, reducing fatigue caused by exercise, and the wrapping effect of the airbag body 11 can also play an auxiliary role in muscle strength. All of these can help patients with sarcopenia exercise.

[0029] like Figure 1 As shown, the lower part of the airbag assembly 1 is connected to the insert plate assembly 2. Specifically, as... Figure 3 As shown, the insert assembly 2 is a disc structure. The insert assembly 2 includes a first insert plate 21 and a second insert plate 22. Both the first insert plate 21 and the second insert plate 22 are semi-circular disc structures. The first insert plate 21 is provided with an insertion hole 211, and the second insert plate 22 is provided with an insertion rod 221. The insertion rod 221 can be inserted into the insertion hole 211 so that the first insert plate 21 and the second insert plate 22 can be spliced ​​together to form the insert assembly 2.

[0030] like Figure 1 As shown, the insert plate assembly 2 has first through holes 23 on both sides, and the first through holes 23 axially penetrate the insert plate assembly 2. More precisely, as... Figure 3 As shown, the two first through holes 23 are located in the first insert plate 21 and the second insert plate 22, respectively.

[0031] like Figure 1 As shown, the airbag body 11 includes an extension bladder 112 located at the bottom. The extension bladder 112 extends downward along the bottom of the airbag body 11, and two extension bladders 112 are symmetrically arranged on the left and right sides. The internal cavity of the extension bladder 112 communicates with the internal cavity of the airbag body 11. The extension bladder 112 includes a connecting portion 1121 located at the upper end, which passes through a first through hole 23. The bottom of the extension bladder 112 is located below the first through hole 23. When the airbag body 11 is not inflated, the extension bladder 112 can pass through the first through hole 23. After the airbag body 11 is inflated, the outer wall of the connecting part 1121 expands radially outward along the first through hole 23. The inner wall of the first through hole 23 abuts against the outer wall of the connecting part 1121. The extension bladder 112 located below the connecting part 1121 expands after inflation, and the expansion size is larger than the first through hole 23. The extension bladder 112 located below the connecting part 1121 cannot pass upward through the first through hole 23. The upper end of the extension bladder 112 located below the connecting part 1121 abuts against the lower end face of the insert assembly 2. The bottom surface of the airbag body 11 located above the connecting part 1121 abuts against the upper end face of the insert assembly 2. Therefore, after the airbag body 11 is inflated, the bottom of the airbag body 11 is fixed to the insert assembly 2.

[0032] like Figure 4, Figure 5 As shown, the insert assembly 2 is connected to the support assembly 3, which is located on both sides of the insert assembly 2. Figure 1 , Figure 4 As shown, the lower limb 6 includes a foot 62, and the foot 62 includes a heel 621. The foot support assembly 3 is located on both sides of the heel 621 (i.e., Figure 4 (The directions shown are to the left and right).

[0033] The support assembly 3 includes a support body 31 and a sleeve 32 located radially outside the support body 31. The upper end of the sleeve 32 is fixedly connected to the insert plate assembly 2.

[0034] like Figure 5 As shown, the sleeve 32 includes a sealing plate 321 at the bottom, the leg body 31 passes through the sealing plate 321 and extends downward, the outer wall of the leg body 31 is provided with an extension 312, the extension 312 protrudes along the outer wall of the leg body 31 to form a ring structure, the outer wall of the extension 312 is slidably connected to the inner wall of the sleeve 32 so that the leg body 31 can move up and down along the inner wall of the sleeve 32, the outer diameter of the extension 312 is larger than the inner diameter of the sealing plate 321 to prevent the extension 312 from passing through the sealing plate 321 downward.

[0035] like Figure 5 As shown, a spring 33 is fitted on the outer wall of the support body 31. The lower end of the spring 33 abuts against the upper end of the extension 312, and the upper end of the spring 33 abuts against the bottom of the insert plate assembly 2. When the support body 31 moves upward, it can compress the spring 33.

[0036] like Figure 4 As shown, the bottom of the support body 31 is in contact with the bottom surface. When the heel 621 touches the ground, the support body 31 moves up to the upper limit position. At this time, the spring 33 is in a compressed state, and the support body 31 provides direct power for the heel 621 to lift up, making it easier for patients with sarcopenia to lift their feet when walking and reducing fatigue.

[0037] like Figure 5 As shown, the support body 31 extends upward and passes through the insert plate assembly 2, combined with Figure 3 The insert plate assembly 2 is provided with a second through hole 24, which is located in the first insert plate 21 and the second insert plate 22 respectively, that is, the two leg bodies 31 pass through the first insert plate 21 and the second insert plate 22 respectively.

[0038] like Figure 5As shown, a cover 311 is fixedly connected to the top. The cover 311 has a circular structure and extends out of the upper end of the insert plate assembly 2. The airbag assembly 1 also includes a second support body 13, which is inserted into the lower end of the airbag body 11. The second support body 13 has a cylindrical structure and is made of rigid plastic. The second support body 13 is inserted into the bottom of the airbag body 11, and the bottom of the second support body 13 abuts against the upper end face of the insert plate assembly 2. The outer wall of the second support body 13 is bonded to the inner wall of the airbag body 11. The cover 311 is inserted into the second support body 13 and can move up and down along the inner wall of the second support body 13.

[0039] like Figure 5 As shown, the airbag body 11 includes a protrusion 113 that extends into the top of the second support body 13. When the support leg body 31 moves upward, the cover 311 abuts against the bottom of the protrusion 113 and compresses it upward, reducing the volume inside the airbag body 11 and increasing the pressure inside. At this time, the force of the airbag body 11 wrapping around the lower leg 61 is enhanced. When the support leg body 31 moves downward, the cover 311 moves downward, the protrusion 113 expands downward, increasing the volume inside the airbag body 11 and decreasing the pressure inside. At this time, the force of the airbag body 11 wrapping around the lower leg 61 is slightly weakened. As the sarcopenic patient walks, the support leg body 31 moves up and down, and the force of the airbag body 11 wrapping around the lower leg 61 continuously changes, creating a pressing effect that can alleviate muscle fatigue and thus increase the duration of continuous walking exercise.

[0040] like Figure 4 As shown, connecting rods 4 are installed on both sides of the bottom of the insert plate assembly 2. The upper end of the connecting rod 4 is screwed into the insert plate assembly 2, and the axial direction of the connecting rod 4 is parallel to the axial direction of the support body 31. The connecting rod 4 is located on the outside of the support body 31. When the heel part 621 steps on the bottom surface, the bottom surface of the connecting rod 4 abuts against the ground.

[0041] like Figure 4 As shown, a connecting piece 5 connects the two connecting rods 4. The connecting piece 5 is a long strip structure and is an elastic rope. The connecting piece 5 is located at the bottom of the connecting rod 4 and is connected as follows: Figure 6 The connecting piece 5 has through holes 51 on both sides for the support body 31 to pass through.

[0042] like Figure 1 As shown, the connecting piece 5 is located below the heel part 621, as... Figure 4 As shown, the two ends of the connecting piece 5 are detachably connected to the connecting rods 4 on both sides.

[0043] like Figure 4 , Figure 5 As shown, when the heel part 621 presses down on the bottom surface, the main body 31 of the support foot rises, as... Figure 5As shown, the cover 311 pushes the protrusion 113 upward, causing the entire airbag assembly 1 to tend to move upward. After the airbag assembly 1 is pushed upward multiple times, the position of the airbag assembly 1 is prone to upward displacement. Therefore, a connecting piece 5 and a connecting rod 4 are provided. Since the connecting piece 5 is located below the heel part 621, the heel part 621 presses down on the ground and also presses down on the connecting piece 5. By pressing down on the connecting piece 5, the connecting rod 4, the insert plate assembly 2, and the airbag assembly 1 connected to the connecting piece 5 all tend to move downward, thereby counteracting the upward displacement of the airbag assembly 1 caused by the support body 31 being lifted, so as to ensure that the position of the airbag body 11 remains stable.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for rehabilitation of muscles of a limb of a patient suffering from sarcopenia, characterized in that: The air bag assembly (1) is connected with the plug-in plate assembly (2) at the lower part, the plug-in plate assembly (2) is connected with the support leg assembly (3), the support leg assembly (3) comprises a support leg body (31) and a sleeve body (32) located at the radial outer side of the support leg body (31), the sleeve body (32) is fixedly connected with the plug-in plate assembly (2) at the upper end, the support leg body (31) can move up and down along the inner wall of the sleeve body (32), the lower end of the support leg body (31) extends out of the bottom of the sleeve body (32), the outer wall of the support leg body (31) is sleeved with a spring (33), the outer wall of the support leg body (31) is provided with an extension part (312), the lower end of the spring (33) abuts against the upper end of the extension part (312), and the support leg body (31) can compress the spring (33) when moving upward. The air bag assembly (1) comprises an air bag body (11) and a first support body (12) located at the outer periphery of the air bag body (11), and the inner wall of the first support body (12) is bonded with the outer wall of the air bag body (11). The air bag assembly (1) further comprises a second support body (13), the second support body (13) is inserted into the lower end of the air bag body (11), the outer wall of the second support body (13) is bonded with the inner wall of the air bag body (11), the top of the support leg body (31) is fixedly connected with a cover part (311), the cover part (311) extends out of the upper end of the plug-in plate assembly (2), the cover part (311) can move up and down along the inner wall of the second support body (13), the air bag body (11) comprises a protruding part (113), the protruding part (113) extends into the top of the second support body (13), when the support leg body (31) moves upward, the cover part (311) can abut against the bottom of the protruding part (113) and compress the protruding part (113) upward, so that the volume of the air bag body (11) is reduced.

2. A sarcopenic patient's limb muscle rehabilitation device as claimed in claim 1, characterized in that: The plug-in plate assembly (2) is provided with a connecting rod (4) on both sides of the bottom, the connecting rod (4) is axially directed to the axial direction of the support leg body (31), and the connecting rods (4) on both sides are connected with a connecting sheet (5).

3. A sarcopenic patient limb muscle rehabilitation device as claimed in claim 2, characterized by: The connecting sheet (5) is located at the bottom of the connecting rod (4), and the connecting sheet (5) is detachably connected with the connecting rods (4) on both sides at both ends.

4. A sarcopenic patient's limb muscle rehabilitation device as claimed in claim 1, characterized in that: The plug-in plate assembly (2) is provided with a first through hole (23) on both sides, the air bag body (11) comprises an extension bag (112) located at the bottom, the extension bag (112) comprises a connecting part (1121) located at the upper end, the connecting part (1121) passes through the first through hole (23), and the bottom of the extension bag (112) is located below the first through hole (23).

5. A sarcopenic patient's limb muscle rehabilitation device as claimed in claim 1, characterized in that: The plug-in plate assembly (2) comprises a first plug-in plate (21) and a second plug-in plate (22), the first plug-in plate (21) is provided with a plug hole (211), the second plug-in plate (22) is provided with a plug rod (221), the plug rod (221) can be inserted into the plug hole (211), so that the first plug-in plate (21) and the second plug-in plate (22) are spliced to form the plug-in plate assembly (2).

6. A sarcopenic patient limb muscle rehabilitation device as claimed in claim 1, characterized by: The air bag body (11) is provided with a plurality of convex parts (114).

7. A sarcopenic patient's limb muscle rehabilitation device as claimed in claim 1, characterized by: The first support body (12) is made of hard plastic.

8. A sarcopenic patient's limb muscle rehabilitation device as claimed in claim 1, characterized by: The air bag body (11) is provided with an air valve (111).

Citation Information

Patent Citations

  • Weight-bearing walking assisting accelerator

    CN104840339A

  • Unpowered walking resisting flexible exoskeleton device

    CN108354785A