CN104323876B - A kind of magneto adjustable long bone prosthese and adjusting means thereof and method - Google Patents
A kind of magneto adjustable long bone prosthese and adjusting means thereof and method Download PDFInfo
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- CN104323876B CN104323876B CN201410614334.8A CN201410614334A CN104323876B CN 104323876 B CN104323876 B CN 104323876B CN 201410614334 A CN201410614334 A CN 201410614334A CN 104323876 B CN104323876 B CN 104323876B
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- prosthese
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- long bone
- magnet rotor
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Abstract
The present invention relates to a kind of magneto adjustable long bone prosthese and adjusting means thereof and method.Before regulation magneto long bone prosthesis length, being inserted in the adjusting means of magneto adjustable long bone prosthese by corresponding for human body limbs, the outer steel making adjusting means is relative with the interior magnet steel on the long bone prosthese implanting human body；Start motor, motor output shaft rotating speed is delivered to the first gear after reduction box slows down, and motion and power are passed to the second gear by engaged transmission by the first gear, and the outer rotor matrix of the outer magnet rotor of the second gear driven rotates, outer rotor matrix drives outer steel to rotate, and forms rotating excitation field；Owing to there is the effect that the same sex is repelled each other, there is a natural attraction between the sexes between magnet, outer magnet rotor will be driven after producing certain phase contrast between outer steel and outer steel to rotate, the rotation rotated driving screw rod of outer magnet rotor, rotating of screw rod will drive the movement in prosthese fixes end of the prosthese mobile terminal, thus realizes regulating long bone prosthesis length.
Description
Technical field
The present invention relates to a kind of adjustable long bone prosthese and adjusting means thereof, needs regulate the requirement of long bone length at set intervals because of growth to can be used for meeting some long bone patient with operation.
Background technology
Some teenage patient such as children need to cut away a part for a certain long bone because of reasons such as tumors, in order to retain the function of this long bone, improve the quality of life of patient, usually implant prosthese in operation in the long bone remained.Due to teenage patient still incomplete development, body parts is also in growth course, inconsistent with the long bone speed of growth do not performed the operation through the long bone of operation, being accomplished by after a while again performing the operation changes prosthesis length and changes the long bone length performed the operation to meet patient's Physiological Psychology demand.But the length of operation change implantation prosthese will again result in the injury to patient again, also has certain operation risk simultaneously.
Additionally, the height that some patients are to controlling oneself is unsatisfied with, it is desirable to changed the height controlled oneself by operation.The method used at present is to block femur by operation, uses the method for extenal fixation that two sections of femurs are strutted and are maintained, until two sections of femoral growths to being further continued for time to be combined strutting two sections of femurs until two sections of femur overall lengths reach the length of patient satisfaction after a period of time.This method easily causes, due to external fixation, the appearance that patient's skin infection festers.
Summary of the invention
It is an object of the invention to provide a kind of long bone prosthese that just can regulate length of need not again performing the operation to meet teenage patient and grow requirement and some patients increase the requirement of height.
A kind of magneto adjustable long bone prosthese of the present invention and adjusting means thereof mainly include the fixing end of outer magnet rotor, bracing frame, interior magnet rotor, screw rod, prosthese, prosthese mobile terminal and driving means.
Outer magnet rotor includes outer rotor matrix, and the permanent magnet that the inner ring of outer rotor matrix rear end is furnished with radial magnetizing is placed on bracing frame as outer steel, outer rotor matrix front end, can be around own axis；Bracing frame supports outer magnet rotor and holds up this part of limb of patient when regulating human body long bone prosthesis length.
Interior magnet rotor includes internal rotor matrix, the outer ring of internal rotor matrix is disposed with the permanent magnet of radial magnetizing as interior magnet steel, and interior magnet rotor is placed in prosthese fixing end chamber, and driving of magnet rotor lower can rotate around the axis of self outside.
Spiro rod rear end is fixed with interior magnet rotor front end, and interior magnet rotor can drive screw rod to rotate together.
Screw front end inserts in the central axis hole of prosthese mobile terminal, is thread connection between prosthese mobile terminal and screw rod, and it is matched in clearance that the rear end of prosthese mobile terminal and prosthese are fixed between the leading portion of end, and when screw rod rotates, prosthese mobile terminal is moved along prosthese fixing end axis direction.
Driving means includes the first gear, the second gear, reduction box and motor；Second gear is fixed on the outer surface of outer rotor matrix rear end, drives outer magnet rotor to rotate；First gear and the second gear are meshed, and are fixed on the output shaft of reduction box；Reduction box passes to the first gear after being slowed down by the output speed of motor；Motor is bidirectional, dc motor, is rigid attachment between motor output shaft and reduction box input shaft, and motor is fixed on bracing frame.
Advantages of the present invention:
The present invention's is rational in infrastructure, it is easy to accomplish, it is possible under No operation state, realize elongating or shortening of human body long bone, decrease the risk of operation, human body long bone growth requirement can be met.Improve the quality of the life of patient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is made into an explanation
Fig. 1 is the structural representation of the embodiment of the present invention
Label in Fig. 1 represents respectively: 1, the fixing end of prosthese；2, interior magnet steel；3, internal rotor matrix；4, screw rod；5, prosthese mobile terminal；6, bracing frame；7, bearing；8, outer rotor matrix；9, outer steel；10, the first gear；11, the second gear；12, reduction box；13, motor.
Detailed description of the invention
The structure of the embodiment of the present invention is as it is shown in figure 1, this structure specifically includes that prosthese fixes end 1, interior magnet steel 2, internal rotor matrix 3, screw rod 4, prosthese mobile terminal 5, bracing frame 6, bearing 7, outer rotor matrix 8, outer steel the 9, first gear the 10, second gear 11, reduction box 12, motor 13.
Adjustable long bone prosthese is fixed end 1, interior magnet steel 2, internal rotor matrix 3, screw rod 4 and prosthese mobile terminal 5 by prosthese and is formed, and this part-structure is planted in human body corresponding long bone region in operation.
The adjusting means of magneto is adjustable long bone prosthese is made up of bracing frame 6, bearing 7, outer rotor matrix 8, outer steel the 9, first gear the 10, second gear 11, reduction box 12 and motor 13, is enclosed within the limbs at corresponding long bone when regulating long bone prosthesis length.
Prosthese is fixed end 1 and is fixed on the segment length's bone cut down in operation or is connected with other prostheses of joint；Interior magnet steel 2 fixed arrangement, in internal rotor matrix 3 back end outer surface, constitutes interior magnet rotor with internal rotor matrix 3, and interior magnet rotor is positioned at prosthese fixing end 1 chamber, can be around own axis；Screw rod 4 is connected with internal rotor matrix 3, rotates with interior magnet rotor；It is matched in clearance between thread connection between prosthese mobile terminal 5 and screw rod 4, and the fixing end 1 of prosthese, can relative movement between prosthese mobile terminal 5 and the fixing end 1 of prosthese；Prosthese mobile terminal 5 is fixed in operation in operation process on another segment length's bone cut down or is connected with other prostheses of joint.
Bracing frame 6 supports outer rotor matrix 8 by bearing 7, and when regulating long bone prosthesis length, bracing frame 6 supports the corresponding limbs of human body simultaneously；Bearing 7, between outer rotor matrix 8 and bracing frame 6, plays and alleviates the effect of abrasion between outer rotor matrix 8 and bracing frame 6.
Outer steel 9 fixed arrangement rotor matrix 8 outside is internal, constitutes outer magnet rotor together with outer rotor matrix 8.
Second gear 11 is fixed on the outer rotor matrix 8 of outer magnet rotor, outer magnet rotor is driven to rotate, first gear 10 is meshed with the second gear 11, and is fixed on the output shaft of reduction box 12, and reduction box 12 passes to the first gear 10 after being slowed down by the output speed of motor 13.Motor 13 is bidirectional, dc motor, is rigid attachment between motor 13 output shaft and reduction box 12 power shaft, and motor 13 is fixed on bracing frame 6.
Work process and principle:
Before regulation magneto long bone prosthesis length, being inserted in the adjusting means of magneto adjustable long bone prosthese by corresponding for human body limbs, the outer steel 9 making adjusting means is relative with the interior magnet steel 2 on the long bone prosthese implanting human body；Start motor 13, motor 13 output shaft rotating speed is delivered to the first gear 10 after reduction box 12 slows down, motion and power are passed to the second gear 11 by engaged transmission by the first gear 10, second gear 11 drives the outer rotor matrix 8 of outer magnet rotor to rotate, outer rotor matrix 8 drives outer steel 9 to rotate, and forms rotating excitation field；Owing to there is the effect that the same sex is repelled each other, there is a natural attraction between the sexes between magnet, outer magnet rotor will be driven after producing certain phase contrast between outer steel 9 and outer steel 2 to rotate, the rotation rotated driving screw rod 4 of outer magnet rotor, rotating of screw rod 4 will drive the prosthese mobile terminal 5 movement in prosthese fixes end 1, thus realizes regulating long bone prosthesis length.
Claims (2)
1. a magneto adjustable long bone prosthese and adjusting means thereof, it is characterised in that: described adjustable long bone prosthese and adjusting means thereof
Fix end, prosthese mobile terminal including outer magnet rotor, bracing frame, interior magnet rotor, screw rod, prosthese and drive outer magnet rotor to rotate
Driving means；
Outer magnet rotor includes outer rotor matrix, the inner ring of outer rotor matrix rear end is furnished with the permanent magnet of radial magnetizing as outer steel, outward
Rotor matrix front end is placed on bracing frame, it is possible to around own axis；Bracing frame support outer magnet rotor and regulate human body long
This part of limb of patient is held up during bone prosthesis length；
Interior magnet rotor includes internal rotor matrix, the outer ring of internal rotor matrix is disposed with the permanent magnet of radial magnetizing as interior magnet steel, interior magnetic
Rotor is placed in prosthese fixing end chamber, and the drive of magnet rotor outside is lower can be rotated around the axis of self, and the fixing end of prosthese is admittedly
It is scheduled on the segment length's bone cut down in operation or is connected with other prostheses of joint；
Spiro rod rear end is fixed with interior magnet rotor front end, and interior magnet rotor can drive screw rod to rotate together；
Screw front end inserts in the central axis hole of prosthese mobile terminal, is thread connection between prosthese mobile terminal and screw rod, the rear end of prosthese mobile terminal
And it is matched in clearance that prosthese is fixed between the leading portion of end, when screw rod rotates, prosthese mobile terminal is moved along prosthese fixing end axis direction
Move the length changing prosthese；Prosthese mobile terminal be fixed in operation in operation process on another segment length's bone cut down or with pass
At joint, other prostheses are connected；Described driving means includes the first gear, the second gear, reduction box and motor；Second gear is fixed
Outside on the outer surface of rotor matrix rear end, outer magnet rotor is driven to rotate；First gear and the second gear are meshed, and are fixed on
On the output shaft of reduction box；Reduction box passes to the first gear after being slowed down by the output speed of motor；Motor is bidirectional, dc motor,
Being rigid attachment between motor output shaft and reduction box input shaft, motor is fixed on bracing frame.
2. a kind of magneto adjustable long bone prosthese as claimed in claim 1 and adjusting means thereof, it is characterised in that: bracing frame passes through
Bearings outer rotor matrix, when regulating long bone prosthesis length, bracing frame supports the corresponding limbs of human body simultaneously；Outside bearing is positioned at
Between rotor matrix and bracing frame, play and alleviate the effect of abrasion between outer rotor matrix and bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614334.8A CN104323876B (en) | 2014-11-05 | 2014-11-05 | A kind of magneto adjustable long bone prosthese and adjusting means thereof and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614334.8A CN104323876B (en) | 2014-11-05 | 2014-11-05 | A kind of magneto adjustable long bone prosthese and adjusting means thereof and method |
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| Publication Number | Publication Date |
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| CN104323876A CN104323876A (en) | 2015-02-04 |
| CN104323876B true CN104323876B (en) | 2016-08-31 |
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| CN201410614334.8A Expired - Fee Related CN104323876B (en) | 2014-11-05 | 2014-11-05 | A kind of magneto adjustable long bone prosthese and adjusting means thereof and method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662663B (en) * | 2016-03-18 | 2017-12-26 | 王威 | A kind of prosthese that can extend automatically |
| CN106205742A (en) * | 2016-08-31 | 2016-12-07 | 浙江大行科技有限公司 | Phase shifter lock pin gap adjusts equipment and method of adjustment |
| CN107468380A (en) * | 2017-06-14 | 2017-12-15 | 姬涛 | A kind of the noninvasive of non-contact electromagnetic driving extends deficient artificial prosthesis |
| CN107260368B (en) * | 2017-08-04 | 2020-01-24 | 上海微创医疗器械（集团）有限公司 | Prosthesis |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69507333T2 (en) * | 1994-11-16 | 1999-09-02 | Soubeiran | DEVICE FOR SLIDING TWO BODIES TOGETHER |
| EP1088530B1 (en) * | 1999-09-24 | 2006-06-28 | WALDEMAR LINK GmbH & Co. KG | Alloplastic prosthesis for long bone |
| GB0009107D0 (en) * | 2000-04-13 | 2000-05-31 | Univ London | Surgical distraction device |
| US7753915B1 (en) * | 2007-06-14 | 2010-07-13 | August Eksler | Bi-directional bone length adjustment system |
| BR112012023246A2 (en) * | 2010-03-19 | 2017-08-08 | Smith & Nephew Inc | telescopic rod and drive mechanism |
| FR2957776B1 (en) * | 2010-03-23 | 2013-02-15 | Arnaud Andre Soubeiran | DEVICE FOR MOVING TISSUES INSIDE THE ORGANISM, ESPECIALLY BONE TISSUES, WITH FIXED TRACTION SCREWS AND ROTATING NUT |
| CN102895048B (en) * | 2012-09-14 | 2016-12-21 | SAMBU Medical株式会社 | The human body artificial skelecton of non-operative treatment extending length |
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2014
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