Medical adjustable heavy burden lower limb rehabilitation brace
Technical field
The present invention relates to a kind of medical rehabilitation apparatus, particularly relate to a kind of lower limb rehabilitation brace of medical adjustable heavy burden.
Background technology
The applying of animal osteotomy scale-model investigation prompting osteotomy position axial stress, makes its poroma quantity of formation and healing time more and shorter compared with control group.And circulation or dynamic property are born a heavy burden more obvious to osteoplastic effect compared with relative quiescent tension force on osteoplastic impact.The blood supply of fracture site is the original power of fracture site cell proliferation, and local microenvironment of fracturing has impact to Cell Differentiation and phenotype.Littlely can promote osteoblast differentiation to moderate stress, and larger stress can increase Gegenbaur's cell ratio, promote union.
But patient is under unprotect device is auxiliary, and heavy burden, step exercises, its fracture end stress is uncontrollable in safe range, can cause fracture delayed union, nonunion even fragmentation of internal fixation objects.In addition, due to the factor such as postoperative pain, mental adaptation, patient is in hospital or postoperatively unmannedly at home to help, supervision walking time, compliance is poor, cannot repetition training method.Therefore, fracture surgery bears a heavy burden, the treatment of walking stress stimulation, needs accurately to control fracture end and met with stresses.
In developed country and domestic, exempt from lotus brace and be applied to orthopedic rehabilitation field, but lack enough basic theory mechanism and clinical practice is studied.At present, there is no and can regulate and control loading by lower limbs stress, sensing, record, allow patient adjust the KAFO equipment of suffering limb heavy burden strength in time in real time.So in fracture of lower limb postoperative rehabilitation, do not reach the demand of early loading step exercises, still require in patient 2-3 month after surgery, absolute bed rest, do not allow to bear a heavy burden lowerly, Ambulatory Activity.Long-term bed, under fracture end is in static tensile, is unfavorable for union, and patient body, mental status are poor, and quality of life is low, unfavorable state of an illness quick recovery.And easily cause late complication of fracturing accordingly, as bedsore, hypostatic pneumonia, lower limb vein thrombus, anchylosis, muscular atrophy, osteoporosis, nonunion etc.
Summary of the invention
The invention provides one can regulate and control loading by lower limbs stress, real-time sensing, record, and warning makes patient adjust suffering limb heavy burden strength in time, ensure that suffering limb carries out the medical adjustable heavy burden lower limb rehabilitation brace of training in the heavy burden threshold range of the best, which overcome the prior art described in background technology in fracture of lower limb postoperative rehabilitation, do not reach the demand of early loading step exercises, long-term bed, under fracture end is in static tensile, be unfavorable for union, patient body, mental status is poor, quality of life is low, unfavorable state of an illness quick recovery, easily cause the shortcoming of corresponding fracture late complication.
The technical solution adopted for the present invention to solve the technical problems is:
Medical adjustable heavy burden lower limb rehabilitation brace, it comprises the weight-bearing brace of lower limb, the load-bearing device of foot, adjusting device and pressure-detecting device; One end of described load-bearing device is articulated in the ground terminal of weight-bearing brace and can swings up and down around this ground terminal, and described load-bearing device is also connected with weight-bearing brace elasticity on its swaying direction by an elastic component; Described adjusting device is secured between weight-bearing brace and load-bearing device and its each one end and is hinged with described weight-bearing brace and load-bearing device respectively, by the amplitude of fluctuation regulating described adjusting device can limit described load-bearing device; Described pressure-detecting device is secured on described load-bearing device.
Among one embodiment: described adjusting device comprises a hollow loop bar, a screw rod and a position limiting structure, one end of loop bar is articulated with weight-bearing brace, one end of screw rod is articulated with load-bearing device, the other end of screw rod slide be nested in loop bar the other end among and by the spacing connection of this position limiting structure limit the sliding distance of screw rod in loop bar, described elastic component to be located in loop bar and in tensile stress state connection one end of loop bar and the other end of screw rod.
Among one embodiment: described position limiting structure comprises the spacing ring of the stop nut be bolted on screw rod and the bottom being fixed on the loop bar other end, one end that described screw rod is arranged in loop bar has bulge loop part, tactile between being divided by described spacing ring and projecting ring section supports the distance of glide limiting screw rod, supported by tactile between stop nut and spacing ring the upslip that limits described screw rod from.
Among one embodiment: described load-bearing device comprises a body cradle and is secured to, and body cradle tramples box, the ground terminal pivot joint of described body cradle and described weight-bearing brace is also hinged with described adjusting device, and described pressure-detecting device is installed in be trampled in box.
Among one embodiment: described weight-bearing brace comprises the pole of pair of parallel placement; The nearly ground terminal of two poles is sweep, and upper part is upstanding portion, and described body cradle and sweep form an acute angle space with the space providing body cradle to swing up and down.
Among one embodiment: be provided with one on front side of the human calf stage casing that described weight-bearing brace is corresponding for blocking, stablizing shank, make the rock-steady structure of limbs and the docile safe human body knee shank of brace.
Among one embodiment: described rock-steady structure is half annular ring.
Among one embodiment: described pressure-detecting device comprises pressure sensor, controller and alarm, pressure sensor and alarm are all connected to controller.
Among one embodiment: described pressure-detecting device and remote intelligent devices communicate to connect, realize remote control and regulation and the data transmission of pressure-detecting device and store.
The technical program is compared with background technology, and its tool has the following advantages:
The active force on load-bearing device is acted on by pressure-detecting device sensing, record suffering limb, by the adjusting device periodic adjustment suffering limb heavy burden range of stress, once suffering limb on load-bearing device active force overpressure checkout gear setting heavy burden threshold value outside, namely pressure-detecting device gives a warning, allow patient adjust suffering limb and trample stress on load-bearing device, make suffering limb carry out bearing a heavy burden in the heavy burden threshold range of the best, Walking, promote union and limb function rehabilitation, Patients with Fractures of Lower Limbs postoperative rehabilitation and medical research are of great importance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 depicts one of schematic diagram of the medical adjustable heavy burden lower limb rehabilitation brace described in the present embodiment.
Fig. 2 depicts the schematic diagram two of the medical adjustable heavy burden lower limb rehabilitation brace described in the present embodiment.
Detailed description of the invention
Consult Fig. 1 and Fig. 2, medical adjustable heavy burden lower limb rehabilitation brace, it comprises the weight-bearing brace 10 of lower limb, the load-bearing device 20 of foot, adjusting device 30 and pressure-detecting device (not shown); One end of load-bearing device 20 is articulated in the ground terminal 101 of weight-bearing brace 10 and can swings up and down around this ground terminal 101, and load-bearing device 20 is also connected with weight-bearing brace 10 elasticity on its swaying direction by an elastic component 40; Adjusting device 30 is secured between weight-bearing brace 10 and load-bearing device 20 and its each one end and is hinged with described weight-bearing brace 10 and load-bearing device 20 respectively, and what can limit load-bearing device 20 by regulating described adjusting device 30 swings up and down amplitude; Pressure-detecting device is secured on load-bearing device 20.
This adjusting device 30 comprises hollow loop bar 31, screw rod 32 and a position limiting structure 33, one end of loop bar 31 is articulated with weight-bearing brace 10, specifically be articulated with the medium position of weight-bearing brace 10, one end of screw rod 32 is articulated with load-bearing device 20, between the two ends being specifically articulated with load-bearing device 20 length direction.The other end of screw rod 32 slide be nested in loop bar 31 the other end among and by the spacing connection of this position limiting structure 33 limit the sliding distance of screw rod 32 in loop bar 31, this elastic component 40 to be located in loop bar 31 and in tensile stress state connection one end of loop bar 31 and the other end of screw rod 32.This adjusting device 30 comprises two and is installed on the both sides between weight-bearing brace 10 and load-bearing device 20 respectively.
This position limiting structure 33 comprises the spacing ring 332 of the stop nut 331 be bolted on screw rod 32 and the bottom being fixed on loop bar 31 other end, the other end of screw rod 32 has bulge loop part 321, support by tactile between described spacing ring 332 and bulge loop part 321 distance of glide limiting screw rod 32, supported by tactile between stop nut 331 and spacing ring 332 upslip that limits described screw rod 32 from.
This load-bearing device 20 comprises a body cradle 21 and is secured to, and body cradle tramples box 22, the ground terminal pivot joint of this body cradle 21 and weight-bearing brace 10 is also hinged with adjusting device 30, this body cradle 21 can carry to be trampled box 22 and swings up and down around ground terminal 101, and this pressure-detecting device is installed in be trampled in box 22.
Pressure-detecting device comprises pressure sensor, controller and alarm, and pressure sensor and alarm are all connected to controller, and this pressure-detecting device can store the stress of trampling that it obtains in real time.Pressure-detecting device also can communicate to connect with remote intelligent devices, realizes remote control and regulation and the data transmission of pressure-detecting device and stores.This remote intelligent devices can be the intelligent apparatus such as mobile phone, long-range PC.Such as, by installing corresponding APP software on mobile phone, realize the communication between mobile phone and pressure-detecting device, can regulate and control pressure-detecting device and (comprise the system parameter setting of pressure-detecting device, heavy burden threshold range is arranged), and the STRESS VARIATION value of trampling obtained by pressure-detecting device is uploaded to mobile phone and carries out storing or processing.
This weight-bearing brace 10 comprises the pole 11 of pair of parallel placement; The nearly ground terminal of two poles 11 is sweep, and upper part is upstanding portion.Body cradle 21 and this sweep form the space that an acute angle space swings up or down to provide body cradle 21.
Be provided with one on front side of the human calf stage casing of this weight-bearing brace 10 correspondence for blocking, stablizing shank, make the rock-steady structure 12 of limbs and the docile safe human body knee shank of brace.In the present embodiment, this rock-steady structure 12 is half annular ring.
When using this medical adjustable heavy burden lower limb rehabilitation brace, first according to suffering limb recovery situation, doctor by regulate adjusting device 30 by load-bearing device 20 up or down oscillation adjustment to suitably highly, specifically: not by under the effect of trampling stress, the reply pulling force of elastic component 40 can make stop nut 331 contact spacing ring all the time, therefore by regulating this stop nut 331 position on screw rod 32, load-bearing device 20 can be changed not by the elemental height trampled under effect of stress, distance between the bulge loop part 321 of now stop nut 331 and screw rod 32 one end is exactly the relative sliding distance between this screw rod 32 and loop bar 31, also being load-bearing device 20 swings up and down amplitude range under effect of stress trampling.Then, the heavy burden threshold value in setting pressure checkout gear, this threshold value is that doctor acts on the scope of trampling stress of trampling on box 22 according to the permission suffering limb that the recovery situation of patient's suffering limb sets.Finally, between two poles 11 suffering limb being stretched into weight-bearing brace 10, sole steps down in be trampled on box 22, patient is in walking with load training process, step down in trample to be formed between sole on box 22 and elastic component 40 to draw and the reply pulling force that can overcome elastic component 40 load-bearing device 20 is limited at position limiting structure 33 amplitude of fluctuation within the scope of swing, formed and the pulsating stress at osteotomy position is stimulated, promote union.The elemental height of load-bearing device 20 is higher, the initial variable of elastic component 40 is less, sole overcome elastic component 40 reply pulling force and start to drive load-bearing device 20 to swing to trample stress less, but load-bearing device 20 allows the scope of swing larger, and this situation is applicable to the preliminary stage resumed training of fracturing; On the contrary, the elemental height of load-bearing device 20 is lower, the initial variable of elastic component 40 is larger, sole overcome elastic component 40 reply pulling force and start to drive load-bearing device 20 to swing to trample stress larger, but load-bearing device 20 allows the scope of swing less, and this situation is applicable to the later stage resumed training of fracturing.Simultaneously in suffering limb Walking process, trample trampling outside heavy burden threshold range that stress exceeds setting on box 22 namely given a warning by alarm if pressure-detecting device detects that suffering limb acts on, what prompting patient corrected suffering limb tramples stress; Such as, when pressure-detecting device detects that trampling stress reaches setting maximum, prompting patient should reduce to trample stress, when trampling understressing, does not reach required stress stimulation, and prompting patient continues firmly to bear a heavy burden.Walking with load training so repeatedly, to the stress stimulation that fracture end constantly changes, promotes union, reduces complication.Which solves fracture of lower limb internal fixation operation patient can not early loading Walking, or the problem of excessively bearing a heavy burden.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.