Elbow joint rehabilitation exoskeleton with forearm unpowered rotation

Abstract

The elbow joint rehabilitation exoskeleton comprises the forearm and the big arm, one end of the forearm is rotationally connected with one end of the big arm, a first telescopic bandage is arranged on the forearm, a first adjusting assembly used for adjusting the position of the first telescopic bandage is arranged on the forearm, and a second telescopic bandage is arranged on the big arm. A second adjusting assembly used for driving the position of the second telescopic bandage to be adjusted is arranged on the large arm. The position of the first telescopic bandage on the forearm can be adjusted through the first adjusting assembly, the position of the second telescopic bandage on the large arm can be adjusted through the second adjusting assembly, the positions of the two telescopic bandages are adjusted according to the length of the arm of a patient, and the rotating connection point of the large arm and the forearm is attached to the elbow joint of the arm of the patient. In this way, the position of the rotating connecting point of the elbow joints of the large arm and the small arm can be adjusted according to the arm of a patient, and the rotating connecting point of the large arm and the small arm can be attached to each elbow joint through adjustment.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of rehabilitation medical equipment, in particular to an elbow joint rehabilitation exoskeleton with unpowered rotation of the forearm. Background Art

[0002] According to the "China Stroke Prevention and Treatment Report (2018)", the number of stroke patients in my country aged 40 and above is as high as 12.42 million, and 55% to 75% of stroke patients will experience hemiplegia, resulting in serious movement disorders or even loss of mobility. The practice of rehabilitation medicine theory has proved that scientific limb training can effectively alleviate the progression of the disease and restore the patient's limb function. Manual training by medical staff has high technical requirements for personnel and is time-consuming and labor-intensive. For this reason, rehabilitation robots have appeared on the market to replace manual operations.

[0003] Existing arm rehabilitation usually involves strapping an exoskeleton to the patient's arm to perform rehabilitation training on the patient's arm. The exoskeleton is composed of a forearm and an upper arm that are rotatably connected to each other. The rotation points of the exoskeleton's forearm and upper arm correspond to the elbow joint of the human arm. However, the length of each person's forearm and upper arm are different, and the existing exoskeletons have a uniform length. If the patient's arm is long, the place where the exoskeleton is bound can be moved down to ensure that the elbow joint and the rotation point are in close contact. If the patient's arm is short, the exoskeleton cannot be shortened, resulting in the elbow joint and the rotation point not being able to maintain a close contact, and it cannot be used. Utility Model Content

[0004] The technical solution of the present utility model addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides an elbow joint rehabilitation exoskeleton with unpowered forearm rotation, which is used to solve the technical problem raised in the above background technology that the length of the upper arm and forearm of the existing exoskeleton cannot be adjusted, resulting in some patients being unable to ensure that the elbow joint and the rotation point of the exoskeleton are in contact.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A forearm non-powered rotating elbow joint rehabilitation exoskeleton comprises a forearm and an upper arm, one end of the forearm being rotatably connected to one end of the upper arm, the forearm being provided with a first telescopic strap, the forearm being provided with a first adjustment component for adjusting the position of the first telescopic strap, the upper arm being provided with a second telescopic strap, the upper arm being provided with a second adjustment component for driving the second telescopic strap to be adjusted in position.

[0007] Preferably, the first adjustment component includes a telescopic block, which is slidably connected to the inside of the forearm, and a support block is fixedly installed at one end of the telescopic block. The support block is provided with a first telescopic strap for binding the forearm to the arm.

[0008] Preferably, a fixing block is fixedly mounted on the forearm, a cross slot is provided above the fixing block, a vertical slot opening of the cross slot is shallow, and a transverse slot hole directly passes through the fixing block.

[0009] Preferably, a plug-in block is provided on the fixed block, a limiting block is fixedly mounted on the plug-in block, the limiting block is plugged into the inside of the cross slot, and a spring is sleeved on the plug-in block.

[0010] Preferably, a plug-in hole is provided on the forearm, a plug-in slot is provided on the telescopic block, and the plug-in block passes through the plug-in hole and is plugged into the plug-in slot.

[0011] Preferably, the second adjustment component includes a moving block, which is slidably connected to the upper arm, and a second telescopic strap is provided on the moving block. A clamping block is fixedly installed on one end of the second telescopic strap, a clamping groove is provided on the upper arm, and a clamping hole is provided on the moving block, and the clamping block is inserted into the clamping groove and the clamping hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the first adjustment component can adjust the position of the first telescopic strap on the forearm, the second adjustment component can adjust the position of the second telescopic strap on the upper arm, and the positions of the two telescopic straps are adjusted according to the length of the patient's arm, so that the rotation connection point of the upper arm and forearm is fit to the patient's elbow joint. In this way, the position of the rotation connection point of the upper arm and forearm elbow joint can be adjusted according to the patient's arm, so that the rotation connection point of the upper arm and forearm can be fit to each elbow joint through adjustment, so that patients with different arm lengths can use it well for recovery training.

[0013] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper arm of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the forearm of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the forearm of the utility model;

[0018] 1. Forearm; 2. Upper arm; 3. Support block; 4. Moving block; 5. First telescopic strap; 6. Second telescopic strap; 7. Telescopic block; 8. Connecting hole; 9. Connecting slot; 10. Fixed block; 11. Cross slot; 12. Connecting block; 13. Limiting block; 14. Spring; 15. Snap-on block; 16. Snap-on slot; 17. Snap-on hole. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Please refer to the attached Figures 1-4 A forearm non-powered rotating elbow joint rehabilitation exoskeleton includes a forearm 1 and an upper arm 2, one end of the forearm 1 is rotatably connected to one end of the upper arm 2, a first telescopic strap 5 is provided on the forearm 1, and a first adjustment component for adjusting the position of the first telescopic strap 5 is provided on the forearm 1, a second telescopic strap 6 is provided on the upper arm 2, and a second adjustment component for driving the second telescopic strap 6 to adjust the position is provided on the upper arm 2.

[0023] The specific operating process of the utility model is as follows: the position of the first telescopic strap 5 on the forearm 1 can be adjusted by the first adjusting component, so that the length of the forearm 1 fitting the patient's arm can be adjusted; the position of the second telescopic strap 6 on the upper arm 2 can be adjusted by the second adjusting component, so that the length of the upper arm 2 fitting the patient's arm can be adjusted; in this way, the position of the first telescopic strap 5 and the second telescopic strap 6 can be adjusted according to the length of the patient's arm; by adjusting the position of the first telescopic strap 5 and the second telescopic strap 6, the position of the rotation connection point of the forearm 1 and the upper arm 2 is adjusted, so that the rotation connection point of the forearm 1 and the upper arm 2 fits the patient's elbow joint, and then the forearm 1 and the upper arm 2 are tied to the patient's arm through the first telescopic strap 5 and the second telescopic strap 6.

[0024] Please refer to Figures 1-4 The first adjusting component includes a telescopic block 7, which is slidably connected to the inside of the forearm 1. A support block 3 is fixedly installed at one end of the telescopic block 7. The support block 3 is provided with a first telescopic strap 5 for tightening the forearm 1 to the arm. A fixed block 10 is fixedly installed on the forearm 1. A cross slot 11 is provided above the fixed block 10. The vertical slot of the cross slot 11 is shallow, and the horizontal slot directly passes through the fixed block 10. A plug-in block 12 is provided on the fixed block 10, and a limiting block 13 is fixedly installed on the plug-in block 12. The limiting block 13 is plugged into the inside of the cross slot 11, and a spring 14 is sleeved on the plug-in block 12. A plug-in hole 8 is provided on the forearm 1, and a plug-in slot 9 is provided on the telescopic block 7. The plug-in block 12 passes through the plug-in hole 8 and is plugged into the inside of the plug-in slot 9.

[0025] When the arm 1 needs to be adjusted, the telescopic block 7 is pulled outward, and after the telescopic block 7 is pulled out to the required length of the patient's arm, the plug-in block 12 is pulled upward to pull the limiting block 13 out of the vertical slot of the cross slot 11. At this time, the spring 14 is in a compressed state and the plug-in block 12 is rotated 90 degrees. At this time, the limiting block 13 is aligned with the horizontal slot of the cross slot 11, and the plug-in block 12 is released. The spring 14 will rebound and reset without pressure, and the spring 14 pushes the plug-in block 12 to drop and insert into the plug hole 8 and the plug slot 9. At this time, the limiting block 13 is also inserted into the horizontal slot of the cross slot 11, and the forearm 1 and the telescopic block 7 are fixed by the plug-in block 12. Then, the forearm 1 is tied to the patient's arm by the first telescopic strap 5. When the limiting block 13 is inside the vertical slot of the cross slot 11, the telescopic block 7 can move. When the limiting block 13 is inside the horizontal slot of the cross slot 11, the telescopic block 7 is restricted and cannot move.

[0026] Please refer to Figures 1-4 The second adjustment component includes a moving block 4, which is slidably connected to the upper arm 2. A second telescopic strap 6 is provided on the moving block 4. A clamping block 15 is fixedly installed at one end of the second telescopic strap 6. A clamping groove 16 is provided on the upper arm 2, and a clamping hole 17 is provided on the moving block 4. The clamping block 15 is inserted into the clamping groove 16 and the clamping hole 17.

[0027] Push the moving block 4, and the moving block 4 will drive the second telescopic strap 6 to move. Adjust the position of the second telescopic strap 6 according to the length of the patient's arm so that the rotation connection point of the upper arm 2 and the forearm 1 fits the patient's elbow joint. If the patient's arm is shorter, the upper arm 2 is lengthened, not only the rotation connection point cannot fit the patient, but the second telescopic strap 6 cannot be tied to the arm. After adjusting the position of the moving block 4, pull out the second telescopic strap 6, and insert the clamping block 15 into the clamping groove 16 and the clamping hole 17 to bind the upper arm 2 to the patient's arm. At the same time, the clamping block 15 fixes the moving block 4 and the upper arm 2 together. At this time, the moving block 4 cannot move.

[0028] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A forearm non-powered rotation elbow joint rehabilitation exoskeleton, comprising a forearm (1) and an upper arm (2), wherein one end of the forearm (1) is rotatably connected to one end of the upper arm (2), and is characterized in that: The forearm (1) is provided with a first telescopic strap (5), and the forearm (1) is provided with a first adjustment component for adjusting the position of the first telescopic strap (5). The upper arm (2) is provided with a second telescopic strap (6), and the upper arm (2) is provided with a second adjustment component for driving the second telescopic strap (6) to adjust its position.

2. The elbow joint rehabilitation exoskeleton with unpowered forearm rotation according to claim 1, characterized in that: The first adjustment component comprises a telescopic block (7), the telescopic block (7) being slidably connected to the interior of the forearm (1), a support block (3) being fixedly mounted on one end of the telescopic block (7), and a first telescopic strap (5) for fastening the forearm (1) to the arm being provided on the support block (3).

3. The elbow joint rehabilitation exoskeleton with unpowered forearm rotation according to claim 2, characterized in that: A fixing block (10) is fixedly mounted on the forearm (1), and a cross slot (11) is provided above the fixing block (10). The vertical slot of the cross slot (11) is relatively shallow, and the transverse slot directly penetrates the fixing block (10).

4. The elbow joint rehabilitation exoskeleton with unpowered forearm rotation according to claim 3, characterized in that: The fixed block (10) is provided with a plug-in block (12), a limiting block (13) is fixedly mounted on the plug-in block (12), the limiting block (13) is plugged into the inside of the cross slot (11), and a spring (14) is sleeved on the plug-in block (12).

5. The elbow joint rehabilitation exoskeleton with unpowered forearm rotation according to claim 4, characterized in that: The small arm (1) is provided with a plug hole (8), the telescopic block (7) is provided with a plug slot (9), and the plug block (12) passes through the plug hole (8) and is plugged into the plug slot (9).

6. The elbow joint rehabilitation exoskeleton with unpowered forearm rotation according to claim 1, characterized in that: The second adjustment component comprises a moving block (4), the moving block (4) being slidably connected to the upper arm (2), the moving block (4) being provided with a second telescopic strap (6), one end of the second telescopic strap (6) being fixedly mounted with a clamping block (15), the upper arm (2) being provided with a clamping groove (16), the moving block (4) being provided with a clamping hole (17), the clamping block (15) being inserted into the clamping groove (16) and the clamping hole (17).

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