CN103494636B - A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo - Google Patents
A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo Download PDFInfo
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- CN103494636B CN103494636B CN201310434505.4A CN201310434505A CN103494636B CN 103494636 B CN103494636 B CN 103494636B CN 201310434505 A CN201310434505 A CN 201310434505A CN 103494636 B CN103494636 B CN 103494636B
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- magnet
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- growth joint
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Orthopedics, Nursing, And Contraception (AREA)
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Abstract
The invention mainly relates to a kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, by implanting the growing rod of human body and being placed in external controller and form, growing rod includes the coaxial hold-down bars being sequentially connected with, growth joint and prolongation rod, growth joint sets threaded pipe for inwall, extend rod one end to be plugged in growth joint, the other end stretches out outside growth joint, and the prolongation rod one end connection being plugged in growth joint has driving means, driving means has a rotating Magnet I and the rotatable parts coordinated by driving screw thread and growth joint, Magnet I is in transmission connection with prolongation rod by decelerator and connecting shaft；Described controller is provided with Magnet II and Magnet III, Magnet II and Magnet III and is rotated by motor-driven, and then is rotated by Magnetic Control Magnet I.Growing rod in the present invention utilizes the magnetic force of Magnet gradually to extend with the growth of spinal column, effectively prevent and repeats operation, decreases the wound to patient, and reduce the financial burden of patient.
Description
Technical field
The invention belongs to medical instruments field, relate generally to a kind of can fix and orthotic device the spinal column of automatic telescopic in vivo.
Background technology
, in growth and development process, can there is skoliosis, lordosis, the rear deformity such as convex because of congenital or acquired disposition in human spine.Deformity of spine can cause profile unsightly, reduces work capacity, and the cubical content that may result in thoracic cavity, abdominal cavity and pelvic cavity reduces, and affects the corresponding organs functions such as cardiopulmonary, affects the life-span, can cause spinal pain and limbs pain etc..Therefore, the most effective carry out deformity of spine corrects the problem that always medical worker is devoted to solve.nullAt present，The operative correction scheme that backbone correcting is used is generally: until spinal growth grow stop after by modus operandi, the internal fixation system such as excellent for nail being implanted，By the most orthopedic for spinal column and fixing fusion，Owing to this type of operation is disposable orthopedic fixing fusion，Therefore this operation can not correction deformity completely due to the reason of operation risk and difficulty for severe deformities patient，Owing to the length of hold-down bars is changeless，So this type of operation is only applicable to spinal growth and grows the patient stopping or substantially stopping，But major part deformity of spine patient was required for before growth promoter peak，Namely deformity not yet develops into the more serious stage and treats，Such as the patient being applied to be in growth promoter by this operation method，Not only limit the growth promoter of spinal column，And the untoward reaction such as crankshaft phenomenon deformity easily occur，It is thus desirable to invent a kind of new operation plan or new fixing apparatus solves to appeal drawback，Occurred in that multiple non-fused surgical technic in recent years，What clinic was conventional is way of escape growing rod technology，Growing rod technology can control and correction deformity，Ensure spinal column and the growth promoter of internal organs，The different technologies method that this technology retains according to growth. propose and " manually strut type、Automatic sliding type " two kinds of classification，Manually strut type need to be completed by Repeated Operation stage by stage，And existence includes that Unstable internal fixation particularly breaks off relations and disconnected rod、Wound infection、Skin injury、Many-sided complication such as spontaneous fusion.Automatic sliding type successfully avoids the shortcoming such as Repeated Operation manually strutting type, but its fixing reliability and orthopaedic function and effect thereof are substantially reduced.Therefore, one how is provided i.e. can to avoid spinal fusion that Repeated Operation regulation and orthopedic effect reliable spinal column implant can be avoided again to be that those skilled in the art are presently required and solve the technical problem that.
Summary of the invention
It is an object of the invention to provide and a kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, growing rod is disposably implanted in human body by this device, growing rod can be driven to be automatically adjusted length in vivo as desired by remote controller in vitro afterwards, not only can be along with spinal growth, and certain strutting or compressing force can be produced, there is the most orthopedic effect, orthopedic effect is reliable, effectively prevent repeat surgery, reduce the wound to patient, and reduce psychology and the financial burden of patient.
The present invention realizes above-mentioned purpose and the technical scheme is that and a kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, by implanting the growing rod of human body and being placed in external controller and form, growing rod is arranged along spine lengths direction, controller is used for driving growing rod flexible in human body, growing rod includes the coaxial hold-down bars being sequentially connected with, growth joint and prolongation rod, growth joint sets threaded pipe for inwall, extend rod one end to be plugged in growth joint, the other end stretches out outside growth joint, and the prolongation rod one end connection being plugged in growth joint has driving means, driving means has a rotating Magnet I and the rotatable parts coordinated by driving screw thread and growth joint, Magnet I is in transmission connection with prolongation rod by decelerator and connecting shaft；
Described controller is provided with Magnet II and Magnet III, Magnet II and Magnet III and is rotated by motor-driven, and then is rotated by Magnetic Control Magnet I.
The two ends of described growing rod are connected with spinal column by screw respectively.
The threaded circular inside pipe wall of described growth joint offers groove vertically, and the described excellent outer wall being positioned at growth joint that extends is provided with the fin with fit depressions.
Described rotatable parts are the shell of driving means, and drive screw thread to be arranged on shell.
Described rotatable parts are the sleeve pipe being provided with and driving screw thread, and fixed cover is located in connecting shaft.
Described Magnet I, Magnet II and Magnet III is Magnet that can be the most freely rotatable.
Described controller is provided with housing, and the output shaft of the motor connected in housing drives two driven gears by driving gear, and two driven gears connect the Magnet II and Magnet III rotated coaxially respectively.
Described decelerator is planetary reduction gear.
Beneficial effects of the present invention
Fixing and in orthotic device the growing rod of the spinal column that the present invention provides utilizes the action of a magnetic field of Magnet to obtain power resources, make growing rod gradually can extend with the growth of spinal column in the case of spinal column non-fused, and can produce and strut or compressing force, there is lasting correction deformity effect.Growing rod can be automatically adjusted length in vivo, can be prevented effectively from the wound repeating operation to patient, lowers psychology and the financial burden of patient, reduces the disability rate that deformity of spine causes, increases the work capacity of patient, alleviate country and burden on society.
Accompanying drawing explanation
Fig. 1 is the structural representation of growing rod in the present invention；
Fig. 2 be in the present invention growing rod along the sectional view in A-A direction；
Fig. 3 is the structural representation extending rod in the present invention；
Fig. 4 is the front view of middle controller of the present invention；
Fig. 5 is the top view of middle controller of the present invention；
Fig. 6 is the right view of middle controller of the present invention；
Fig. 7 is magnetic principle schematic diagram in the present invention；
Reference: 1, hold-down bars, 2, growth joint, 3, extend rod, 4, groove, 5, fin, 6, driving means, 601, drive screw thread, 602, Magnet I, 603, decelerator, 7, connecting shaft, 8, housing, 9, motor, 10, driving gear, 11, driven gear, 12, Magnet II, 13, Magnet III.
Detailed description of the invention
As shown in figures 1 to 6: a kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, by implanting the growing rod of human body and being placed in external controller and form, growing rod is arranged along spine lengths direction, controller is used for driving growing rod flexible in human body, growing rod includes the coaxial hold-down bars 1 being sequentially connected with, growth joint 2 and prolongation rod 3, growth joint 2 sets threaded pipe for inwall, extend excellent 3 one end to be plugged in growth joint 2, the other end stretches out outside growth joint 2, and the prolongation rod 3 one end connection being plugged in growth joint 2 has driving means 6, driving means 6 has a rotating Magnet I 602 and the rotatable parts coordinated by driving screw thread 601 and growth joint 2, Magnet I 602 is in transmission connection with extending rod 3 by decelerator 603 and connecting shaft 7；
Described controller is provided with Magnet II 12 and Magnet III 13, Magnet II 12 and Magnet III 13 and is driven rotation by motor 9, and then is rotated by Magnetic Control Magnet I 602.
The two ends of described growing rod are connected with spinal column by screw respectively, and screw is pedicle screw.Described growth saves the threaded circular inside pipe wall of 2 and offers groove 4 vertically, and described excellent 3 outer walls being positioned at growth joint 2 that extend are provided with the fin 5 matched with groove 4, groove 4 and fin 5 respectively two.
Described rotatable parts are the shell of driving means 6, and drive screw thread 601 to be arranged on shell；Or rotatable parts are the sleeve pipe being provided with and driving screw thread 601, and fixed cover is located in connecting shaft 7.
Described controller is provided with housing 8, and the output shaft of the motor 9 connected in housing 8 drives two driven gears 11, two driven gears 11 to connect the Magnet II 12 and Magnet III 13 rotated coaxially respectively by driving gear 10.Magnet I 602, Magnet II 12 and Magnet III 13 are Magnet that can be the most freely rotatable.
Described decelerator 603 is planetary reduction gear, a diameter of 6mm of planetary reduction gear.
As shown in figs. 1-7, the operation principle of a kind of spinal orthosis that can automatically prolong in vivo that the present invention provides: this device controls driving gear 10 by motor 9, driving gear 10 drives two driven gears 11 to operate, so that Magnet II 12 and Magnet III 13 operate, Magnet II 12 makes magnetic field Development pattern change, drive the Magnet I 602 in growing rod that directional rotating occurs, the rotating speed of Magnet I 602 is after decelerator 603 slows down, active force and counteracting force principle is utilized to drive driving means 6 to rotate relative to growth joint 2 and prolongation rod 3, produce driving force, driving force passes to prolongation rod 3 makes prolongation rod 3 stretch out the positions prolongation of growth joint 2, thus realize growing rod and extend.Extend the long rotation direction changing Magnet II 12 and Magnet III 13 if there is growing rod, thus drive the Magnet I 602 in growing rod to rotate backward, to drive driving means 6 to rotate inwards along the screw thread of growth joint 2 inwalls.
The using method of the present invention: the most once perform the operation, growing rod is inserted human body, hold-down bars 1 and the prolongation rod 3 of growing rod are fixed with the two ends needing orthopedic lopsided spinal segments respectively, carry out suitable backbone correcting to fix, the one end extending rod 3 connection driving means 6 is located in growth joint 2, according to clinical needs after having performed the operation, open the controller of external manipulation, controller is placed in position corresponding with growing rod at human body back, controller can be close to skin and use, it is possible to use higher than back skin certain distance；The magnetic field rule change that the Magnet II 12 of controller and Magnet III 13 occur operating to produce drives the Magnet I 602 in growing rod to rotate, the rotating speed of Magnet I 602 is after decelerator 603 slows down, drive driving means 6 along the screw thread of growth joint 2 inwalls to external rotation, driving force passes to prolongation rod 3 makes prolongation rod 3 stretch out the positions prolongation of growth joint 2, thus realizes growing rod prolongation.
Claims (5)
- null1. can fix and orthotic device the spinal column of automatic telescopic in vivo for one kind，It is characterized in that: by implanting the growing rod of human body and being placed in external controller and form，Growing rod is arranged along spine lengths direction，Controller is used for driving growing rod flexible in human body，Growing rod includes the coaxial hold-down bars (1) being sequentially connected with、Growth joint (2) and prolongation rod (3)，Growth joint (2) is that inwall sets threaded pipe，Extend rod (3) one end to be plugged in growth joint (2)，The other end stretches out growth joint (2) outward，And prolongation rod (3) one end connection being plugged in growth joint (2) has driving means (6)，Driving means (6) has a rotating Magnet I (602) and the rotatable parts coordinated by driving screw thread (601) and growth joint (2)，Magnet I (602) is in transmission connection with extending rod (3) by decelerator (603) and connecting shaft (7)；The threaded circular inside pipe wall of described growth joint (2) offers groove (4) vertically, and described prolongation rod (3) is positioned at the outer wall of growth joint (2) and is provided with the fin (5) matched with groove (4)；Described controller is provided with Magnet II (12) and Magnet III (13), Magnet II (12) and Magnet III (13) and is driven rotation by motor (9), and then is rotated by Magnetic Control Magnet I (602)；Described Magnet I (602), Magnet II (12) and Magnet III (13) is Magnet that can be the most freely rotatable；Described controller is provided with housing (8), the output shaft of the motor (9) connected in housing (8) drives two driven gears (11) by driving gear (10), and two driven gears (11) connect the Magnet II (12) and Magnet III (13) rotated coaxially respectively.
- A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, it is characterised in that: the two ends of described growing rod are connected with spinal column by screw respectively.
- A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, it is characterised in that: described rotatable parts are the shell of driving means (6), and drive screw thread (601) to be arranged on shell.
- A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, it is characterised in that: described rotatable parts are the sleeve pipe being provided with and driving screw thread (601), and fixed cover is located in connecting shaft (7).
- A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo, it is characterised in that: described decelerator (603) is planetary reduction gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434505.4A CN103494636B (en) | 2013-09-23 | 2013-09-23 | A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434505.4A CN103494636B (en) | 2013-09-23 | 2013-09-23 | A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo |
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| Publication Number | Publication Date |
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| CN103494636A CN103494636A (en) | 2014-01-08 |
| CN103494636B true CN103494636B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310434505.4A Expired - Fee Related CN103494636B (en) | 2013-09-23 | 2013-09-23 | A kind of can fix and orthotic device the spinal column of automatic telescopic in vivo |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2915496B2 (en) * | 2014-03-06 | 2024-06-26 | MPS Micro Precision Systems AG | Implantable device |
| CN107822700B (en) * | 2017-11-15 | 2020-03-06 | 山东威高骨科材料股份有限公司 | Adjusting device of growth rod, passive growth rod and active growth rod |
| CN108703798A (en) * | 2018-08-13 | 2018-10-26 | 北京大学人民医院 | The noninvasive growing rod of contactless electromagnetic drive for scoliosis orthopedic |
| CN110141341B (en) * | 2019-05-28 | 2023-05-23 | 罗玉佳 | Biological power orthopedic growth stick |
| CN112780753A (en) * | 2021-01-20 | 2021-05-11 | 清华大学 | Rod-shaped device |
| CN114376671B (en) * | 2022-02-08 | 2024-03-29 | 中国航天科工集团第二研究院 | Low-cost visual bile duct calculus noninvasive lithotripsy and lithotripsy device and method |
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| CN101917918B (en) * | 2007-10-30 | 2012-11-21 | 埃利普斯科技有限公司 | Skeletal manipulation system |
| CN102858262A (en) * | 2009-12-01 | 2013-01-02 | 新特斯有限责任公司 | Non-fusion scoliosis expandable spinal rod |
| CN102917659A (en) * | 2010-03-19 | 2013-02-06 | 史密夫和内修有限公司 | Telescoping IM nail and actuating mechanism |
| CN103298423A (en) * | 2010-11-22 | 2013-09-11 | 斯恩蒂斯有限公司 | Non-fusion scoliosis expandable spinal rod |
| CN203524757U (en) * | 2013-09-23 | 2014-04-09 | 李登宇 | Spine fixing and shape righting device capable of automatically stretching out and drawing back in body |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012021378A2 (en) * | 2010-08-09 | 2012-02-16 | Ellipse Technologies, Inc. | Maintenance feature in magnetic implant |
| US20120035656A1 (en) * | 2010-08-09 | 2012-02-09 | Ellipse Technologies, Inc. | External maintenance feature for magnetic implant |
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2013
- 2013-09-23 CN CN201310434505.4A patent/CN103494636B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917918B (en) * | 2007-10-30 | 2012-11-21 | 埃利普斯科技有限公司 | Skeletal manipulation system |
| CN102858262A (en) * | 2009-12-01 | 2013-01-02 | 新特斯有限责任公司 | Non-fusion scoliosis expandable spinal rod |
| CN102917659A (en) * | 2010-03-19 | 2013-02-06 | 史密夫和内修有限公司 | Telescoping IM nail and actuating mechanism |
| CN103298423A (en) * | 2010-11-22 | 2013-09-11 | 斯恩蒂斯有限公司 | Non-fusion scoliosis expandable spinal rod |
| CN203524757U (en) * | 2013-09-23 | 2014-04-09 | 李登宇 | Spine fixing and shape righting device capable of automatically stretching out and drawing back in body |
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| CN103494636A (en) | 2014-01-08 |
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Granted publication date: 20160810 Termination date: 20170923 |