CN104323876A - Permanent magnet type adjustable long bone prosthesis as well as adjusting device and method thereof - Google Patents
Permanent magnet type adjustable long bone prosthesis as well as adjusting device and method thereof Download PDFInfo
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- CN104323876A CN104323876A CN201410614334.8A CN201410614334A CN104323876A CN 104323876 A CN104323876 A CN 104323876A CN 201410614334 A CN201410614334 A CN 201410614334A CN 104323876 A CN104323876 A CN 104323876A
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- prosthese
- long bone
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- adjusting device
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Abstract
The invention relates to a permanent magnet type adjustable long bone prosthesis as well as an adjusting device and an adjusting method thereof. Before the length of the permanent magnet type long bone prosthesis is adjusted, a corresponding limb of a human body is put into the adjusting device of the permanent magnet type adjustable long bone prosthesis in a sleeving mode, so that outer magnetic steel of the adjusting device is aligned to inner magnetic steel on the long bone prosthesis planted into the human body; a motor is started; the rotating speed of an output shaft of the motor is reduced by a speed reducing box and then is transmitted to a first gear; the first gear is used for transmitting motion and power to a second gear by engaged transmission; the second gear drives an outer rotor base body of an outer magnetic rotor to rotate; the outer rotor base body drives the outer magnetic steel to rotate to form a rotary magnetic field; magnets have the effects of repelling of like poles and attracting of different poles, so that the outer magnetic rotor is driven to rotate after a certain phase difference is formed between the outer magnetic steel and the outer magnetic steel; the rotation of the outer magnetic rotor drives a screw rod to rotate and the rotation of the screw rod drives a prosthesis movable end to move in a prosthesis fixed end, so that the length of the long bone prosthesis is adjusted.
Description
Technical field
The present invention relates to a kind of adjustable long bone prosthese and adjusting device 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 patients because the reasons such as tumor need the part cutting away a certain long bone, in order to retain the function of this long bone, improve quality of life of patient as child, usually implanting prosthetic in the long bone remained in operation.Due to teenage patient still incomplete development, body parts is also in growth course, long bone through operation is inconsistent with the long bone speed of growth of not performing the operation, and just needs after a while again to perform the operation to change prosthesis length and change the long bone length of performing the operation to meet patient's Physiological Psychology demand.But the injury that the length that operation changes implanting prosthetic again will cause again to patient, also has certain operation risk simultaneously.
In addition, some patients are unsatisfied with the height of controlling oneself, and it is desirable to change the height of controlling oneself by performing the operation.The method of current employing blocks femur by operation, adopt the method for extenal fixation that two sections of femurs are strutted and are maintained, after a period of time until two sections of femoral growths to will in conjunction with time continue again to strut two sections of femurs until two sections of femur overall lengths reach the length of patient satisfaction.This method easily causes the appearance of patient infection's skin ulceration due to external fixation.
Summary of the invention
The object of the present invention is to provide a kind of need not again operation that the long bone prosthese of length just can be regulated to grow to meet teenage patient the requirement that requirement and some patients increase height.
A kind of magneto adjustable long bone prosthese of the present invention and adjusting device thereof mainly comprise outer magnet rotor, bracing frame, interior magnet rotor, screw rod, prosthese stiff end, prosthese mobile terminal and driving device.
Outer magnet rotor comprises outer rotor matrix, and the inner ring of outer rotor matrix rear end is furnished with the permanent magnet of radial magnetizing as outer steel, outer rotor matrix front end is placed on bracing frame, can around own axis; Bracing frame supports outer magnet rotor and holds up this part limbs of patient when regulating human body long bone prosthesis length.
Interior magnet rotor comprises internal rotor matrix, the outer ring of internal rotor matrix is furnished with the permanent magnet of radial magnetizing as interior magnet steel, and interior magnet rotor is placed in prosthese stiff end chamber, can rotate under the drive of magnet rotor outside around the axis of self.
Spiro rod rear end and interior magnet rotor front end are fixed, and interior magnet rotor can drive screw rod to rotate together.
Screw front end inserts in the central axis hole of prosthese mobile terminal, it is thread connection between prosthese mobile terminal and screw rod, be matched in clearance between the rear end of prosthese mobile terminal and the leading portion of prosthese stiff end, when bolt rotary, prosthese mobile terminal is moved along prosthese stiff end axis direction.
Driving device comprises 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 is meshed with the second gear, and is 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, and be rigid attachment between motor output shaft and reduction box input shaft, motor is fixed on bracing frame.
advantage of the present invention:
Of the present invention rational in infrastructure, be easy to realize, elongating or shortening of human body long bone can be realized under No operation state, 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 Dui Zuo Jin of the present invention mono-Walk explanation
Fig. 1 is the structural representation of the embodiment of the present invention
Label in Fig. 1 represents respectively: 1, prosthese stiff end; 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
As shown in Figure 1, this structure mainly comprises the structure of the embodiment of the present invention: prosthese stiff 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 9, first gear 10, second gear 11, reduction box 12, motor 13.
Adjustable long bone prosthese is made up of prosthese stiff end 1, interior magnet steel 2, internal rotor matrix 3, screw rod 4 and prosthese mobile terminal 5, and this part structure is planted in the corresponding long bone region of human body in operation.
The adjusting device of magneto is adjustable long bone prosthese is made up of bracing frame 6, bearing 7, outer rotor matrix 8, outer steel 9, first gear 10, second gear 11, reduction box 12 and motor 13, is enclosed within the limbs at corresponding long bone place when regulating long bone prosthesis length.
Prosthese stiff end 1 is fixed in operation to cut down on next segment length's bone or with other prostheses of joint and is connected; Interior magnet steel 2 fixed arrangement, in internal rotor matrix 3 back end outer surface, forms interior magnet rotor with internal rotor matrix 3, and interior magnet rotor is positioned at prosthese stiff end 1 chamber, can around own axis; Screw rod 4 is connected with internal rotor matrix 3, rotates with interior magnet rotor; Thread connection between prosthese mobile terminal 5 and screw rod 4, and be matched in clearance between prosthese stiff end 1, can relative movement between prosthese mobile terminal 5 and prosthese stiff end 1; Prosthese mobile terminal 5 is fixed in operation to cut down on another next segment length's bone or with other prostheses of joint and is connected in operation process.
Bracing frame 6 supports outer rotor matrix 8 by bearing 7, and when regulating long bone prosthesis length, bracing frame 6 is the corresponding limbs of support human body simultaneously; Bearing 7, between outer rotor matrix 8 and bracing frame 6, plays a part to alleviate between outer rotor matrix 8 and bracing frame 6 and weares and teares.
Outer steel 9 fixed arrangement outside rotor matrix 8 is inner, forms 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, and be rigid attachment between motor 13 output shaft and reduction box 12 power shaft, motor 13 is fixed on bracing frame 6.
Work process and principle:
Before adjustment magneto long bone prosthesis length, corresponding for human body limbs are inserted in the adjusting device of the adjustable long bone prosthese of magneto, make the interior magnet steel 2 on the outer steel 9 of adjusting device and the long bone prosthese of implant into body relative; Starter motor 13, motor 13 output shaft rotating speed is delivered to the first gear 10 after reduction box 12 slows down, first gear 10 will be moved with power transmission to the second gear 11 by engaged transmission, 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 two like magnetic poles repel each other, the effect that 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 of outer magnet rotor will drive the rotation of screw rod 4, the rotation of screw rod 4 by the driving movement of prosthese mobile terminal 5 in prosthese stiff end 1, thus realizes regulating long bone prosthesis length.
Claims (4)
1. the adjustable long bone prosthese of magneto and an adjusting device thereof, is characterized in that: the driving device that described adjustable long bone prosthese and adjusting device thereof comprise outer magnet rotor, bracing frame, interior magnet rotor, screw rod, prosthese stiff end, prosthese mobile terminal and drive outer magnet rotor to rotate;
Outer magnet rotor comprises outer rotor matrix, and the inner ring of outer rotor matrix rear end is furnished with the permanent magnet of radial magnetizing as outer steel, outer rotor matrix front end is placed on bracing frame, can around own axis; Bracing frame supports outer magnet rotor and holds up this part limbs of patient when regulating human body long bone prosthesis length;
Interior magnet rotor comprises internal rotor matrix, the outer ring of internal rotor matrix is furnished with the permanent magnet of radial magnetizing as interior magnet steel, interior magnet rotor is placed in prosthese stiff end chamber, can rotate around the axis of self under the drive of magnet rotor outside, prosthese stiff end is fixed in operation on segment length's bone of cutting down and or with other prostheses of joint and is connected;
Spiro rod rear end and interior magnet rotor front end are fixed, and interior magnet rotor can drive screw rod to rotate together;
Screw front end inserts in the central axis hole of prosthese mobile terminal, it is thread connection between prosthese mobile terminal and screw rod, be matched in clearance between the rear end of prosthese mobile terminal and the leading portion of prosthese stiff end, when bolt rotary, the length changing prosthese is moved along prosthese stiff end axis direction in prosthese mobile terminal; Prosthese mobile terminal is fixed in operation to cut down on another next segment length's bone or with other prostheses of joint and is connected in operation process.
2. the adjustable long bone prosthese of a kind of magneto as claimed in claim 1 and adjusting device thereof, is characterized in that: driving device comprises 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 is meshed with the second gear, and is 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, and be rigid attachment between motor output shaft and reduction box input shaft, motor is fixed on bracing frame.
3. the adjustable long bone prosthese of a kind of magneto as claimed in claim 1 and adjusting device thereof, is characterized in that: bracing frame is by bearings outer rotor matrix, and when regulating long bone prosthesis length, bracing frame is the corresponding limbs of support human body simultaneously; Bearing, between outer rotor matrix and bracing frame, plays a part to alleviate between outer rotor matrix and bracing frame and weares and teares.
4. the control method of long bone prosthese as adjustable in a kind of magneto as claimed in claim 1 and adjusting device thereof, it is characterized in that: before adjustment magneto long bone prosthesis length, corresponding for human body limbs are inserted in the adjusting device of the adjustable long bone prosthese of magneto, make the outer steel of adjusting device relative with the interior magnet steel on the long bone prosthese of implant into body; Starter motor, motor output shaft rotating speed is delivered to the first gear after reduction box slows down, and the first gear will move with power transmission to the second gear by engaged transmission, 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 two like magnetic poles repel each other, the effect that 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 of outer magnet rotor will drive the rotation of screw rod, the rotation of screw rod by the driving movement of prosthese mobile terminal in prosthese stiff end, thus realizes regulating long bone prosthesis length.
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 true CN104323876A (en) | 2015-02-04 |
| CN104323876B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662663A (en) * | 2016-03-18 | 2016-06-15 | 王威 | Implant capable of automatically extending |
| 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 |
| CN107260368A (en) * | 2017-08-04 | 2017-10-20 | 上海微创医疗器械（集团）有限公司 | Prosthesis |
| CN107468380A (en) * | 2017-06-14 | 2017-12-15 | 姬涛 | A kind of the noninvasive of non-contact electromagnetic driving extends deficient artificial prosthesis |
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| US6569203B1 (en) * | 1999-09-24 | 2003-05-27 | Waldemar Link (Gmbh & Co.) | Alloplastic replacement for a long bone |
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| US7753915B1 (en) * | 2007-06-14 | 2010-07-13 | August Eksler | Bi-directional bone length adjustment system |
| CN102293678A (en) * | 2010-03-23 | 2011-12-28 | 阿诺·苏贝朗 | Device for displacement of tissue, in particular bone tissue |
| CN102895048A (en) * | 2012-09-14 | 2013-01-30 | SAMBUMedical株式会社 | Artificial bone for human body capable of prolonging length through nonsurgical method |
| CN102917659A (en) * | 2010-03-19 | 2013-02-06 | 史密夫和内修有限公司 | Telescoping IM nail and actuating mechanism |
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2014
- 2014-11-05 CN CN201410614334.8A patent/CN104323876B/en not_active Expired - Fee Related
Patent Citations (7)
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|---|---|---|---|---|
| CN1162349A (en) * | 1994-11-16 | 1997-10-15 | 安德烈·阿尔诺·苏贝朗 | Device for mutually moving two bodies |
| US6569203B1 (en) * | 1999-09-24 | 2003-05-27 | Waldemar Link (Gmbh & Co.) | Alloplastic replacement for a long bone |
| CN1433286A (en) * | 2000-04-13 | 2003-07-30 | 伦敦大学学院 | Surygical distraction device |
| US7753915B1 (en) * | 2007-06-14 | 2010-07-13 | August Eksler | Bi-directional bone length adjustment system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662663A (en) * | 2016-03-18 | 2016-06-15 | 王威 | Implant capable of automatically extending |
| 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 |
| CN107260368A (en) * | 2017-08-04 | 2017-10-20 | 上海微创医疗器械（集团）有限公司 | Prosthesis |
| WO2019024666A1 (en) * | 2017-08-04 | 2019-02-07 | 上海微创医疗器械（集团）有限公司 | Prosthesis |
| CN107260368B (en) * | 2017-08-04 | 2020-01-24 | 上海微创医疗器械（集团）有限公司 | Prosthesis |
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| Publication number | Publication date |
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| CN104323876B (en) | 2016-08-31 |
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