CN102018521B - Measuring system for sitting-posture spine correction of cerebral palsy patients - Google Patents

Measuring system for sitting-posture spine correction of cerebral palsy patients Download PDF

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Publication number
CN102018521B
CN102018521B CN 201010541204 CN201010541204A CN102018521B CN 102018521 B CN102018521 B CN 102018521B CN 201010541204 CN201010541204 CN 201010541204 CN 201010541204 A CN201010541204 A CN 201010541204A CN 102018521 B CN102018521 B CN 102018521B
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China
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pressure
cerebral palsy
sitting posture
brace
vertical
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CN102018521A (en
Inventor
樊瑜波
蒲放
李德玉
张明峥
杨阳
苏宏伦
吴志宏
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Beihang University
Peking Union Medical College Hospital Chinese Academy of Medical Sciences
National Research Center for Rehabilitation Technical Aids
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Beihang University
Peking Union Medical College Hospital Chinese Academy of Medical Sciences
National Research Center for Rehabilitation Technical Aids
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Abstract

The invention provides a measuring system for sitting-posture spine correction of cerebral palsy patients, comprising a sitting-posture spine correction brace simulation part and a pressure measurement part, wherein the sitting-posture spine correction brace simulation part simulates the force applying way of the spine correction brace and simulates the spine correction effect of the spine correction brace on the cerebral palsy patients via the effect of the applied force; and the pressure measurement part realizes measurement of the distributed pressures of the corrected parts and the hip and carries out analysis and evaluation to provide mechanical basis for designing the personalized sitting-posture spine correction brace for cerebral palsy patients. The system can simulate the correction function of the sitting-posture spine correction brace for cerebral palsy patients, measure the distributed pressures of the correct parts and the hip, realize quantitative biomechanics measurement analysis of sitting-posture spine correction of the cerebral palsy patients and provide mechanical basis for designing the personalized sitting-posture spine correction brace for cerebral palsy patients.

Description

Patients with cerebral palsy sitting posture spine correcting measuring system
Technical field
The present invention relates to rehabilitation engineering and medical instruments field, more particularly relate to a kind of patients with cerebral palsy sitting posture spine correcting measuring system.
Background technology
Skoliosis is meant that one of spinal column or several sections are crooked and with back protruding or the increase of lordosis or the deformity of spine of minimizing on vertebral body rotation and the sagittal plane to the side, is a kind of three-dimensional lopsided.(Scoliosis research Society, SRS) to the skoliosis definition as follows: use the rachiocamposis that the Cobb method is measured erect position spinal column normotopia X-ray sheet, angle is called skoliosis greater than 10 ° in world skoliosis EASD.The scoliotic cause of disease it be unclear that mostly, and numerous disease can make spinal column that the side bending takes place, and wherein very important a kind of disease is a cerebral palsy.Cerebral palsy (Cerebral Palsy; Be called for short CP); Be called children's's cerebral palsy again, be meant the non-progressive brain injury syndrome that in utero causes from children's, mainly show as kentrokiness obstacle and abnormal posture to back 1 month endogenous cause of ill a variety of causes of being born (unusual, bilirubin encephalopathy or the like) like premature labor, cerebral hypoxia ischemia, birth process; The various disorders such as power, language, audio visual that can fall with intelligence simultaneously are the diseases that has a strong impact on upgrowth and development of children and functional activity.At present, the cerebral palsy sickness rate of China is approximately 0.5%.
Because patients with cerebral palsy can not be stood, it all is in sitting posture in the most of the time except that sleep, and therefore, sitting posture spine correcting accessory has important effect in the functional rehabilitation of cerebral palsy.Relevant discovers that 81% CP children all is starved of sitting posture accessory system.At present, the various sitting posture spine correcting accessory Related products that comprise saddle type medicated cushion, embedded medicated cushion, outer brace type sitting posture chair, tilting chair, modularity sitting posture system etc. have been developed both at home and abroad.But; The design of sitting posture spine correcting accessory at present all relies on medical personnel's experience mostly; Just carry out simple declaration for the rectification effect of spine correcting accessory, force situation etc., can't reach quantitative biomechanics Measurement and analysis from macroscopic 3 power principles.
Summary of the invention
For the design that overcomes present sitting posture spine correcting accessory all relies on medical personnel's experience mostly, and can't reach the problem of quantitative biomechanical analysis, the invention provides a kind of patients with cerebral palsy sitting posture spine correcting measuring system.The correcting that cerebral palsy is suffered from sitting posture spine correcting brace can be simulated by this system; Apply mimic corrective force through patients with cerebral palsy to personalization; And measure and correct site distribution formula pressure and buttocks distributed pressure; Realization is to the quantitative biomechanical analysis of patients with cerebral palsy sitting posture spine correcting, and mechanics basis is provided for the design of the personalized sitting posture spine correcting of patients with cerebral palsy brace.
According to an aspect of the present invention, a kind of patients with cerebral palsy sitting posture spine correcting measuring system is provided, has it is characterized in that comprising: sitting posture spine correcting brace analog part and pressure measxurement part.
Sitting posture spine correcting brace analog part of the present invention can be simulated spine correcting brace power and apply mode, simulates the spine correcting effect of spine correcting brace to patients with cerebral palsy through the effect that applies power.The principle of its simulation correcting is: through 3 correcting principles of mechanics; On the protruding side of patients with cerebral palsy spinal column, produce lasting pressure through pressure knob; Act on the pressure pad, be transmitted to rib again, act on the protruding side of spinal column through rib; Thereby produce tension force in recessed side, it is protruding that the traction tissue is corrected side.
According to an aspect of the present invention; A kind of patients with cerebral palsy sitting posture spine correcting measuring system is provided; It is characterized in that comprising: a sitting posture spine correcting brace analog part; Be used to simulate spine correcting brace power and apply mode, simulate of the spine correcting effect of spine correcting brace patients with cerebral palsy through the effect that applies power; And a pressure measxurement part is used for realizing correcting site distribution formula pressure measxurement and the distributed pressure measxurement of buttocks, thereby is that personalized patients with cerebral palsy sitting posture spine correcting brace design provides mechanics basis.
The measurement of pressure comprises two parts in the patients with cerebral palsy sitting posture spine correcting measuring system of the present invention: correct site distribution formula pressure measxurement and the distributed pressure measxurement of buttocks.
Sitting posture spine correcting brace analog part mainly comprises: wheel seat base, wheel chair back, cervical fixation device, pressure knob, pressure rings, back-up block, body controll block etc.Angle between wheel seat base and the wheel chair back can be regulated, and back-up block and pressure rings can move up and down, thereby selects proper site to apply corrective force; Body controll block and cervical fixation device can move horizontally, thereby can be to the selected best fixing and rectification position of different patients.
When the correcting of simulation sitting posture spine correcting brace; Angle between regulating wheel seat base and the wheel chair back is to correct position, and patient's cervical region is fixed by the cervical fixation device, and body controll block acts on shoulder; Be used for fixing patient's body position, avoid the patient to slide on the seat.The sliding support piece makes it act on the basin bone, makes the buttocks fixed-site.Regulate the pressure rings position, act on and correct the position.Two pressure knobs are arranged on each pressure rings, and these two pressure knobs can slide in the chute on pressure rings, arrive suitable rectification position thereby can regulate the pressure pad that links to each other with pressure knob.Produce lasting pressure through pressure knob, act on the pressure pad, be transmitted to rib again, act on the protruding side of spinal column through rib, thereby produce tension force in recessed side, it is protruding that the traction tissue is corrected side.The area of pressure pad can be adjusted, but must be large-area, can act on the above area of 3 rib bones.
Pressure-measuring system mainly comprises: distributed pressure pick off and base pressure flat.The distributed pressure pick off places on pressure pad and the back-up block, can the gaging pressure pad and back-up block on the distributed pressure that receives, the base pressure flat places on the base, is used to measure the stressed branch of buttocks situation.The distributed pressure of being surveyed on pressure pad and the back-up block is used for the quantitative biomechanical analysis and the design of the personalized patients with cerebral palsy sitting posture of guidance spine correcting brace of patients with cerebral palsy sitting posture spine correcting; And the buttocks distributed pressure of being surveyed is used to estimate rectification effect on the one hand, is used for the design of patients with cerebral palsy Chain cushion on the other hand.
The advantage of patients with cerebral palsy sitting posture spine correcting measuring system of the present invention comprises:
1, can simulate spinal column correcting sitting posture brace power and apply mode, simulate of the spine correcting effect of spine correcting brace patients with cerebral palsy through the effect that applies power.
2, can measure the distributed force of correcting position and buttocks, realize quantitative biomechanical analysis, for personalized patients with cerebral palsy sitting posture spine correcting brace design provides mechanics basis to patients with cerebral palsy sitting posture spine correcting.
3, operating process is easy, is highly suitable for the design of the sitting posture spine correcting brace of patients with cerebral palsy, and carries out the relevant scientific research of spinal biomechanics.
Description of drawings
Fig. 1 is the population structure sketch map of patients with cerebral palsy sitting posture spine correcting measuring system of the present invention;
Fig. 2 is that the power of patients with cerebral palsy sitting posture spine correcting measuring system of the present invention applies sketch map;
Fig. 3 is that embodiments of the invention power applies the mode sketch map.
The specific embodiment
As shown in Figure 1, be the population structure sketch map of patients with cerebral palsy sitting posture spine correcting measuring system according to an embodiment of the invention, it is characterized in that comprising: sitting posture spine correcting brace analog part and pressure measxurement part.Sitting posture spine correcting brace analog part as shown in Figure 1 mainly comprises: wheel seat base 1, wheel chair back 2, wheelchair side board 4, backrest inclination degree actuator 5, trailing wheel 6; Front-wheel 7, cervical fixation device 8, body controll block 9, handrail 10, crossbeam 11; Vertical beam 12, vertical beam chute 13, side board chute 14, pressure rings 15,16,17,18; Pressure rings chute 19, pressure pad 20, pressure knob 21, back-up block 22 etc.
Angle between wheel seat base 1 and the wheel chair back 2 can be regulated through backrest inclination degree actuator 5.Cervical fixation device 8 and body controll block 9 link to each other with crossbeam 11, and can on crossbeam 11, horizontally slip in the horizontal direction, thereby can be to the selected suitable fixing and rectification position of different patients.Pressure rings 15,16,17,18 and back-up block 22 can move under vertical beam chute 13 in the vertical directions on the vertical beam 12, thereby can select proper site to apply corrective force.Vertical beam 12 can move at fore-and-aft direction through screw rod along side board chute 14, thereby regulates vertical beam 12 and pressure rings 15,16,17,18 and back-up block 22 position at fore-and-aft direction that links to each other with vertical beam.Be distributed with two pressure knobs 21 on the pressure rings 15,16,17,18 respectively, these two pressure knobs can slide in the pressure rings chute 19 on pressure rings, arrive suitable rectification position thereby can regulate the pressure pad 20 that links to each other with pressure knob.Pressure knob 21 is used to produce lasting rectification pressure, and can regulate the size of pressure.Produce lasting pressure through pressure knob 21, act on the pressure pad 20, be transmitted to rib again, act on the protruding side of spinal column through rib, thereby produce tension force in recessed side, it is protruding that the traction tissue is corrected side.The area of pressure pad 20 can be adjusted, but preferably large-area, especially can act on the above area of 3 rib bones.
Pressure-measuring system mainly comprises: distributed pressure pick off (not marking among the figure) and base pressure flat 3.The distributed pressure pick off places on pressure pad 20 and the back-up block 22, can the gaging pressure pad and back-up block on the pressure distribution that receives, base pressure flat 3 places on the base 1, is used to measure the stressed branch of buttocks situation.Institute's measuring pressure can output in the bin, perhaps outputs to a computer processing system and stores and analyze.The distributed pressure of being surveyed on pressure pad and the back-up block is used for the quantitative biomechanical analysis and the design of the personalized patients with cerebral palsy sitting posture of guidance spine correcting brace of patients with cerebral palsy sitting posture spine correcting; And the buttocks distributed pressure of being surveyed can be used for estimating rectification effect on the one hand, can be used for the design of patients with cerebral palsy Chain cushion on the other hand.
As shown in Figure 2, be that the power of patients with cerebral palsy sitting posture spine correcting measuring system according to an embodiment of the invention applies the scheme sketch map.
For example, for one two curved skoliosis patient, the spine correcting brace is as shown in Figure 2 to its corrective force that applies and anti-spin.Curved for breast, power 201,202,203 has constituted one group of 3 corrective force, and curved for waist, power 202,203,204 has constituted one group of 3 corrective force.Power 1 acts on the curved minimum vertebra place of breast, and power 202 acts on the curved the highest vertebra place of breast, and power 203 acts on the curved the highest vertebra place of waist, and power 204 does in to use the pelvis place.
When correcting skoliosis, also need anti-spin, these anti-spins often need apply in pairs.The power that power 205,208,209,212 representatives shown in Fig. 2 apply forward, power 206,207,210, the 211 representatives power that applies backward.With corrective force 201 corresponding one group of anti-spin be power 205,206; With corrective force 202 corresponding one group of anti-spin be power 207,208; With corrective force 203 one group of relative anti-spin be power 209,210, with corrective force 204 one group of relative anti-spin be power 211,212.Because abdominal part do not have force application part, so an anti-spin 210 in one group of anti-spin relative with corrective force 203 also acts on pelvis.
In the orthosis design of reality; Owing to often join together in the position that applies of corrective force 201 and anti-spin 205; Therefore; Patients with cerebral palsy sitting posture spine correcting measuring system of the present invention is done the time spent at simulation spine correcting brace, acts on the position that applies of corrective force 201 and anti-spin 205 through a pressure pad, produces corrective force 201 and anti-spin 205 these two power.In like manner, corrective force 202 and anti-spin 208, corrective force 203 and anti-spin 209, corrective force 204 all produces with a pressure pad effect respectively with anti-spin 212.
When the correcting of simulation sitting posture spine correcting brace; Angle through between backrest inclination degree actuator 5 regulating wheel seat bases 1 and the wheel chair back 2 arrives correct position; Cervical fixation device 8 and body controll block 9 slide into correct position, and patient's cervical region is fixing by cervical fixation device 8, and body controll block 9 acts on shoulder; Be used for fixing patient's body position, avoid the patient to slide on the seat.Regulate vertical beam 12 and move to correct position at fore-and-aft direction along baffle chute 14.Along two back-up blocks 22 of vertical beam chute 13 slips, act on the basin bone, make the buttocks fixed-site.Concrete implementation method for corrective force and anti-spin is following:
(1) regulates pressure rings 17 to bending minimum vertebra place flush with breast; Pressure knob 21 slides in pressure rings chute 19; Make a pressure pad 20 on the pressure rings 17 act on the curved minimum vertebra place of breast; Produce corrective force shown in Figure 2 201 and anti-spin 205, another pressure pad 20 on the pressure rings 17 produces anti-spin 206 shown in Figure 2;
(2) regulate pressure rings 15 to bending the highest vertebra place flush with breast; Make a pressure pad on the pressure rings 15 act on the curved the highest vertebra place of breast; Produce corrective force shown in Figure 2 202 and anti-spin 208, another pressure pad on the pressure rings 15 produces anti-spin 207 shown in Figure 2;
(3) regulate pressure rings 18 to bending the highest vertebra place flush with waist; Make a pressure pad on the pressure rings 18 act on the curved the highest vertebra place of waist; Produce corrective force shown in Figure 2 203 and anti-spin 209, because abdominal part can not be stressed, another anti-spin 210 is provided by back-up block 22;
(4) regulate pressure rings 16 to pelvis flush everywhere, make a pressure pad on the pressure rings 16 act on the pelvis place, produces corrective force shown in Figure 2 204 and anti-spin 212, another pressure pad generation anti-spin 211 shown in Figure 2 on the pressure rings 16.
In implementation and operation, above-mentioned (1)-(4) apply simultaneously, thereby produce corrective force, the correcting of simulation spine correcting brace.
The quantitative biomechanics of the different power load modes of embodiment patients with cerebral palsy sitting posture spine correcting is measured
Angle through between backrest inclination degree actuator 5 regulating wheel seat bases 1 and the wheel chair back 2 arrives correct position; Cervical fixation device 8 and body controll block 9 slide into correct position; Patient's cervical region is fixing by cervical fixation device 8; Body controll block 9 acts on shoulder, is used for fixing patient's body position, avoids the patient to slide on the seat.Regulate vertical beam 12 and move to correct position at fore-and-aft direction along baffle chute 14.Along two back-up blocks 22 of vertical beam chute 13 slips, act on the basin bone, make the buttocks fixed-site.
As shown in Figure 3, for single curved skoliosis, adopt the mode of following two kinds of loading forces:
(1) shown in the left figure of Fig. 3, pressure rings 15,17 all places the protruding minimum vertebra of side place, produces corrective force F1, F2 through the pressure pad, and pressure rings 16,18 places the pelvis place, produces corrective force F3, F4 through the pressure pad,
(2) shown in the right figure of Fig. 3, pressure rings 15 places the protruding minimum vertebra of side place, produces corrective force F1 through the pressure pad; Pressure rings 17 places side the highest protruding vertebra place; Produce corrective force F2 through the pressure pad, pressure rings 16,18 places the pelvis place, produces corrective force F3, F4 through the pressure pad.
For above-mentioned two kinds of power load modes, all adopt the distributed sensor on pressure pad 20 and the back-up block 22 to measure the suffered power in position of correcting, measure the stressed branch of buttocks situation with base pressure flat 3.Institute's measuring pressure is transferred to the computer processing system storage and analyzes the diversity of the rectification effect that more above-mentioned two kinds of different power load modes are produced.
Should be understood that; In above narration and explanation to just explanation but not determinate of description that the present invention carried out; And like enclosed under the prerequisite of the present invention that claims limit not breaking away from, can carry out various changes, distortion and/or revise the foregoing description.
The drawing reference numeral explanation
1, wheel seat base 2, wheel chair back 3, base pressure flat
4, wheelchair side board
5, backrest inclination degree actuator 6, trailing wheel 7, front-wheel
8, cervical fixation device 9, body controll block 10, handrail
11, crossbeam 12, vertical beam 13, vertical beam chute
14, side board chute 15, pressure rings I 16, pressure rings II
17, pressure rings III 18, pressure rings IV 19, pressure rings chute
20, pressure pad 21, pressure knob 22, back-up block

Claims (6)

1. patients with cerebral palsy sitting posture spine correcting measuring system is characterized in that comprising:
A sitting posture spine correcting brace analog part is used to simulate spine correcting brace power and applies mode, simulates the spine correcting effect of spine correcting brace to patients with cerebral palsy through the effect that applies power,
Said sitting posture spine correcting brace analog part comprises:
Base (1),
Backrest (2),
Cervical fixation device (8) is used for fixing patient's cervical region,
Body controll block (9) is used to provide act on patient's shoulder and immobilized patients body position avoids the patient to slide on the seat,
A plurality of pressure rings (15,16,17,18) are used for producing conduction and act on the epicostal lasting pressure of patient, act on the protruding side of spinal column through rib, thereby produce tension force in the recessed side of spinal column, and traction organizes the side of correcting spinal column protruding,
Pressure pad (20), it is fixed on said a plurality of pressure rings (15,16,17,18) through pressure knob (21), is used on patient's rib, applying said lasting pressure,
Said pressure knob (21) is used for producing and regulating said lasting pressure;
A pressure measxurement part is used for realizing correcting site distribution formula pressure measxurement and the distributed pressure measxurement of buttocks, thereby for personalized patients with cerebral palsy sitting posture spine correcting brace design provides mechanics basis, said pressure measxurement partly comprises:
Place the base pressure flat (3) on the base (1), be used for the stressed branch of measuring patient buttocks situation, be arranged at the distributed pressure pick off on pressure pad (20) and the back-up block (22), be used for the pressure distribution that receives on gaging pressure pad and the back-up block.
2. system according to claim 1 is characterized in that further comprising:
Be arranged on the pressure rings chute (19) on said a plurality of pressure rings (15,16,17,18), said pressure knob slides in said pressure rings chute (19), thereby adjusts to suitable rectification position to the said pressure pad (20) that links to each other with pressure knob.
3. system according to claim 2 is characterized in that
Each pressure rings (15,16,17,18) is provided with two said pressure knobs (21) and two pressure pads (20).
4. according to any one described system among the claim 1-3, it is characterized in that said sitting posture spine correcting brace analog part further comprises:
Vertical beam (12),
Open the vertical beam chute (13) on said vertical beam,
Wherein said a plurality of pressure rings (15,16,17,18) can move along said vertical beam chute (13) on said vertical beam (12), thereby selects proper site to apply corrective force.
5. system according to claim 4 is characterized in that, said sitting posture spine correcting brace analog part further comprises:
Side board (4),
Open the side board chute (14) on said side board (4),
Be connected the said back-up block (22) on the said vertical beam (12), on vertical beam (12), can move, be used to act on patient's basin bone, make patient's buttocks fixed-site along said vertical beam chute (13),
Wherein said vertical beam (12) can move along side board chute (14), thereby regulates vertical beam (12), pressure rings (15,16,17,18) and back-up block (22) position at fore-and-aft direction.
6. system according to claim 5 is characterized in that, said sitting posture spine correcting brace analog part further comprises:
Backrest inclination degree actuator (5) is used to regulate the angle between base (1) and the backrest (2); Trailing wheel (6); Front-wheel (7); Handrail (10); Crossbeam (11).
CN 201010541204 2010-11-12 2010-11-12 Measuring system for sitting-posture spine correction of cerebral palsy patients Expired - Fee Related CN102018521B (en)

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