Lumbar muscle auxiliary force balance device and design method
A technology of force balance and design method, applied in design optimization/simulation, medical science, orthopaedic corsets, etc., can solve problems such as lumbar muscle strain, fatigue and even soreness
Active Publication Date: 2021-09-14
山东中医药大学第二附属医院
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[0002] When a person stands normally, it can be considered that the center of gravity of the upper body falls on the center line of the human body directly above the center of the 5th lumbar vertebra to the first sacral vertebra; when the person bends forward, the center of gravity of the upper body can be considered to be in front shift, and generate forward bending upper body weight moment relative to the center point of the 5th lumbar vertebra to the first sacral vertebra, at this time, the relevant muscles of the waist begin to stretch and bear the upper body weight moment, so as to ensure the bending posture of the human body However, if you want to maintain a bent posture for a long time, the relevant psoas muscles will feel fatigued or even sore, and in severe cases, it will cause lumbar muscle strain
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[0122] The method of personalized design will be described below with specific examples and with reference to the accompanying drawings.
[0123] 1. Determine the weight of the upper body: Obtain the weight of the upper body at and above the point C in the center of the 5th lumbar vertebra - the 1st sacral vertebra through the ergonomics method, and the weight of the upper body is: 65kg;
[0124] 2. Obtain the height of the person's body center of gravity point P relative to the center point C of the 5th lumbar vertebra - the 1st sacral vertebra directly above the point C through the ergonomics method, and its scale is: L 1 =425mm;
[0125] 3. Determine the effective design length of the elastic stretch band 5: L 2 =555mm;
[0126] 4. Preliminary estimate of the coefficient of elasticity k' of the elastic stretch band 5:
[0127] 1), measured at the height of point P on the back of the person, the horizontal distance d=80mm between the elastic stretch band 5 and the center ...
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The invention discloses a waist muscle auxiliary force balance device and a design method thereof. The device includes a shoulder strap, a waist strap and an elastic stretching strap. The shoulder strap is worn on the shoulder of a human body, and the waist strap Worn on the waist of the human body, the elastic stretch belt is arranged on the back of the human body along the direction of the spine, and the two ends of the elastic stretch belt are respectively connected with the shoulder strap and the waist strap, when the human body When the back is bent, the elastic stretch band deforms accordingly and generates a corresponding pulling force. The invention enables the recipient to use his relatively small waist-related muscle strength to support and maintain his upper body forward-bending posture stably and for a long time, effectively improving the related lumbar muscle strain of the bending operator.
Description
technical field [0001] The invention relates to the technical field of human rehabilitation and nursing, in particular to an auxiliary force balance device and design method for lumbar muscles. Background technique [0002] When a person stands normally, it can be considered that the center of gravity of the upper body falls on the center line of the human body directly above the center of the 5th lumbar vertebra to the first sacral vertebra; when the person bends forward, the center of gravity of the upper body can be considered to be in front shift, and generate forward bending upper body weight moment relative to the center point of the 5th lumbar vertebra to the first sacral vertebra, at this time, the relevant muscles of the waist begin to stretch and bear the upper body weight moment, so as to ensure the bending posture of the human body However, if you want to maintain a bent posture for a long time, the relevant psoas muscles will feel tired or even sore, and in seve...
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IPC IPC(8): A61F5/02G06F30/20
CPCA61F5/026
Inventor 樊东哲
Owner 山东中医药大学第二附属医院