CN102429712A - Spondylolisthesis repositioning device and repositor thereof - Google Patents
Spondylolisthesis repositioning device and repositor thereof Download PDFInfo
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- CN102429712A CN102429712A CN2011103869265A CN201110386926A CN102429712A CN 102429712 A CN102429712 A CN 102429712A CN 2011103869265 A CN2011103869265 A CN 2011103869265A CN 201110386926 A CN201110386926 A CN 201110386926A CN 102429712 A CN102429712 A CN 102429712A
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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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
- A61B17/7077—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for moving bone anchors attached to vertebrae, thereby displacing the vertebrae
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Abstract
The invention discloses a spondylolisthesis repositioning device and repositor thereof, which is used for repositioning the olisthed vertebral column in the spondylolisthesis repositioning operation. The repositor comprises a fixing arm, a repositioning arm, an adjusting arm and a driving device, wherein the first end of the fixing arm is hinged with the first end of the repositioning arm; the first end of the adjusting arm is hinged with the middle part of the fixing arm, the second end of the adjusting arm and the middle part of the repositioning arm are glidingly connected along the extending direction, and the middle part thereof is connected with the driving device. The driving device is used for driving the adjusting arm to move and driving the first end of the adjusting arm to swivel relative to the fixing arm and the second end thereof to glide along the extending direction of the repositioning arm so as to change the distance and the angle between the fixing arm the second section of the repositioning arm and finally reach the purpose of spondylolisthesis repositioning. The repositor provided by the invention has a simple structure and easy operation, which can effectively reduce the difficulty and risk of operation so as to enhance the safety and reliability of operation.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of positor that is used for the spondylolishesis resetting means.In addition, the invention still further relates to a kind of spondylolishesis resetting means that comprises above-mentioned positor.
Background technology
Lumbar spondylolisthesis and lumbar vertebra disintegrate are common clinicals, account for 5% of lumbago patient sum.Can concurrent intervertebral disk hernia, spinal canal stenosis is so that incomplete spinal cord injury.After Hibb wound in 1911 is with way of escape vertebral plate bone graft fusion treatment lumbar spondylolisthesis; Nineteen fifty-two Bosworth improves with " H " shape bone-graft fusion; Nineteen fifty-three Watkins wound is with merging between the approach transverse process of the outside, back, and the bone grafting healing rate reaches 96%, but the pseudarthrosis incidence rate is up to 15%～40%.The preceding road of Freebody wound surface interbody fusion in 1971 directly merges the slippage vertebral body, but the disunion rate still can not reduce, and curative effect can not be satisfied with.Buck adopted isthmus not connect place's cut-out, bone grafting, multiple screws in 1970, but indication very little.More than be long-term next traditional treatment principle: remove the compressing of nerve root or horse hair, prevent to continue slippage, malformation correction is then felt simply helpless.Also be not reset just because of slippage, lumbosacral angle is excessive, will form the slippage shearing of huge slippage vertebral body, makes bone grafting be not enough to antagonism, fatigue fracture, pseudoarticulation formation just take place gradually and continues slippage.Rectification and resetting at of slippage vertebral body that lumbosacral angle is described have very important significance in the treatment.
At present, realizing the reduction of spondylolisthesis of vertebral body, all is to carry out reset operation through implant and kit, loaded down with trivial details, the complex connection of its operation technique; Supporting operating theater instruments complicated operation, the operation technique difficulty requires height to the doctor; And be prone to cause reset and lose, making the very risky of operation, security reliability is difficult to be protected.
Therefore, how improving the security reliability of centrum olisthe reattachment surgery, reduce operating difficulty and risk, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of positor that is used for the spondylolishesis resetting means, this positor can effectively improve the security reliability of centrum olisthe reattachment surgery, reduces operating difficulty and risk.Another object of the present invention provides a kind of spondylolishesis resetting means that comprises above-mentioned positor.
For realizing the foregoing invention purpose; The present invention provides a kind of positor that is used for the spondylolishesis resetting means; Comprise: the driving device of the said regulating arm motion of fixed arm, reset arm, regulating arm and driving, first end of said fixed arm and first end of said reset arm are hinged; First end of said regulating arm and the middle part of said fixed arm are hinged, and the middle part of second end and said reset arm is slidingly connected along its bearing of trend, and the middle part is connected with said driving device.
Preferably, said driving device specifically comprise screw rod and with said screw rod nut engaged, said fixed arm has through hole, an end and the said regulating arm of said screw rod are slidingly connected, the other end penetrates said through hole.
Preferably, also comprise first regulating shaft that connects said screw rod and said regulating arm, first chute that said regulating arm is identical with its bearing of trend, said screw rod has connecting hole, and said first regulating shaft is located in said first chute and the said connecting hole simultaneously.
Preferably, the middle part of said reset arm is provided with second chute identical with its bearing of trend, and second end of said regulating arm is fixedly connected with second regulating shaft, and said second regulating shaft slides along said second chute.
Preferably, also comprise the handle that is fixedly connected with said reset arm.
Preferably, the affixed position of said handle is near second end of said reset arm.
The present invention also provides a kind of spondylolishesis resetting means, comprises and implants the supporting apparatus that intravertebral implant is fixedly connected, and comprises as weighing above-mentioned each described positor.
Preferably, said supporting apparatus comprises first crossbeam and second crossbeam, and the fixed arm of said positor and said first crossbeam are hinged, second end of the reset arm of said positor and the said second crossbeam clamping.
Preferably, second end of said reset arm has the notch that resets that cooperates with said second crossbeam, and said second crossbeam is arranged in the said notch that resets.
Positor provided by the present invention is used for the spondylolishesis reattachment surgery spinal column of slippage is resetted.This positor comprises fixed arm, reset arm, regulating arm and driving device; Wherein, First end of reset arm and first end of said fixed arm are hinged, and first end of regulating arm and the middle part of said fixed arm are hinged, and the middle part of second end and said reset arm is slidingly connected along its bearing of trend; Driving device is used to drive said regulating arm motion, makes the first end relative fixed arm rotation of regulating arm, and second end slides along the bearing of trend of reset arm, thereby phase mutual edge distance and angle between fixed arm that is hinged and reset arm second end change.In the spondylolishesis reattachment surgery; May in spinal column, implant the implant of nail class; Again supporting apparatus is fixedly connected with implant; Implant has two at least, and supporting apparatus has first crossbeam and second crossbeam, first crossbeam and second crossbeam respectively with two implants in one be fixedly connected.During reduction of spondylolisthesis; The fixed arm and first crossbeam is hinged, and the reset arm and second crossbeam are connected, and driving device drives the regulating arm motion; Make the two ends of regulating arm act on fixed arm and reset arm respectively; Make reset arm drive second crossbeam, and then two implant spacing walk-off angle degree are changed, reach the purpose of reduction of spondylolisthesis away from first crossbeam.Above-mentioned positor is simple in structure, and reset operation is simple, can effectively reduce the risk and the difficulty of operation, improves the security reliability of operation.
A kind of preferred embodiment in, said driving device specifically comprise screw rod and with said screw rod nut engaged, said fixed arm has through hole, an end and the said regulating arm of said screw rod are slidingly connected, the other end penetrates said through hole.In the operation, as long as manual swivel nut, just can move up or down by drive screw, and then first end of drive regulating arm rotates with respect to fixed arm, second end slides along reset arm.Screw rod and nut simple in structure is easy to realize, makes the whole cost of positor lower.And; Manually the control nut can make the quantity of motion of regulating arm be effectively controlled, and then controls second crossbeam well away from the distance and the angle of first crossbeam, and the distance of reduction of spondylolisthesis and angle are controlled in the ideal range; Thereby improve the operation precision, reduce operation risk.
In another preferred embodiment, positor provided by the present invention also comprises the handle that is fixedly connected with said reset arm.In the operation, can control handle, prevent that reset arm and the clamping in reseting procedure of second crossbeam are insecure, skew occur, further improve the security reliability of operation, reduce operation risk.
Providing on the basis of above-mentioned positor, the present invention also provides a kind of spondylolishesis resetting means that comprises above-mentioned positor; Because positor has above-mentioned technique effect, the spondylolishesis resetting means with this positor also has the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of positor provided by the present invention;
Fig. 2 is a positor perspective view shown in Figure 1;
Fig. 3 is the explosive view of positor shown in Figure 1.
The specific embodiment
Core of the present invention provides a kind of positor that is used for the spondylolishesis resetting means, and this positor can effectively improve the security reliability of centrum olisthe reattachment surgery, reduces operating difficulty and risk.Another core of the present invention provides a kind of spondylolishesis resetting means that comprises above-mentioned positor.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1 to Fig. 3, Fig. 1 is the structural representation of a kind of specific embodiment of positor provided by the present invention; Fig. 2 is a positor perspective view shown in Figure 1; Fig. 3 is the explosive view of positor shown in Figure 1.
Positor provided by the present invention is used for the spondylolishesis reattachment surgery, is used for the spinal column of slippage is resetted.This positor comprises fixed arm 1, reset arm 2, regulating arm 3 and driving device 4; Wherein, First end of reset arm 2 and first end of fixed arm 1 are hinged, and first end of regulating arm 3 and the middle part of fixed arm 1 are hinged, and the middle part of second end and reset arm 2 is slidingly connected along its bearing of trend; Driving device 4 is used to drive regulating arm 3 motions; Make the first end relative fixed arm, 1 rotation of regulating arm 3; Second end slides along the bearing of trend of reset arm 2, thereby phase mutual edge distance and angle between second end of fixed arm that is hinged 1 and reset arm 2 change, and reach the purpose that resets.
In the spondylolishesis reattachment surgery; May in spinal column, implant the implant of nail class; Again supporting apparatus is fixedly connected with implant; Implant has two at least, and supporting apparatus has first crossbeam and second crossbeam, first crossbeam and second crossbeam respectively with two implants in one be fixedly connected.During reduction of spondylolisthesis, with second end and first crossbeam hinged (also can directly be hinged on the bone, be fulcrum with bone) of fixed arm 1; Second end and second crossbeam of reset arm 2 are connected; Driving device 4 drives regulating arm 3 motions, makes the two ends of regulating arm 3 act on fixed arm 1 and reset arm 2 respectively, makes reset arm 2 drive second crossbeam away from first crossbeam; And then two implant spacing walk-off angle degree are changed, reach the purpose of reduction of spondylolisthesis.Above-mentioned positor is simple in structure, and reset operation is simple, can effectively reduce the risk and the difficulty of operation, improves the security reliability of operation.
Obviously, middle part mentioned above all is said with respect to the end, only otherwise at two ends, all be appreciated that to be the middle part.
In a kind of concrete embodiment, driving device 4 specifically can comprise screw rod 41 and with screw rod 41 nut engaged 42, fixed arm 1 has through hole, an end and the regulating arm 3 of screw rod 41 are slidingly connected other end penetrated through via holes.In the operation, as long as manual swivel nut 42, just can move up or down by drive screw 41, and then first end that drives regulating arm 3 is with respect to fixed arm 1 rotation, second end is along reset arm 2 slips.Screw rod 41 is simple in structure with nut 42, is easy to realize, makes the whole cost of positor lower.And; Manually control nut 42 can make the quantity of motion of regulating arm 3 be effectively controlled, and then controls second crossbeam well away from the distance and the angle of first crossbeam, and the distance of reduction of spondylolisthesis and angle are controlled in the ideal range; Thereby improve the operation precision, reduce operation risk.
Except the structure of above-mentioned screw rod 41 and nut 42; The structure that can drive regulating arm 3 also has a lot; For example can on screw rod 41, cooperate a handwheel is installed, drive the screw rod 41 that cooperates with it through the handwheel rotation, such structure also can realize the object of the invention.Understand from the angle of mathematics; Fixed arm provided by the present invention 1, reset arm 2 and regulating arm 3 have formed a variable triangle; Position with regulating arm 3 places is a leg-of-mutton limit; The height that changes on this limit just can change leg-of-mutton shape, and then changes the angle between fixed arm 1 and the reset arm 2, thus distance and angle adjustment between second end of the end of realization adjusting fixed arm 1 and reset arm 2.It is a variety of that ability realizes that the mechanical system of such position adjustment has, and gives unnecessary details no longer one by one at this.
Further; Positor provided by the present invention can also comprise first regulating shaft 5 of connecting screw rod 41 and regulating arm 3; First chute 31 that regulating arm 3 is identical with its bearing of trend, screw rod 41 has connecting hole, and first regulating shaft 5 is located in first chute 31 and the connecting hole simultaneously.During adjusting nut 42, first regulating shaft 5 slides in first chute 31, reduces the interaction force between screw rod 41 and the regulating arm 3, and second end that drives regulating arm 3 more effortlessly rotates around first end.Simultaneously, utilize first regulating shaft 5 to connect regulating arm 3 and screw rod 41, its connected mode is simple, manufactures easily, can reduce the production cost of positor.
Same reason, the middle part of reset arm 2 also can be provided with second chute 21 identical with its bearing of trend, and second end of regulating arm 3 is fixedly connected with second regulating shaft, 6, the second regulating shafts 6 and slides along second chute 21.Second regulating shaft 6 can satisfy the invention needs with both cooperating of second chute 21, can simplify the structure of positor again, can further reduce the production cost of positor.
Need to prove that the first above-mentioned regulating shaft 5 and second regulating shaft 6 all can be bolt or other easily detachable structure, to reduce the assembling difficulty of positor.Simultaneously, first regulating shaft 5 and second regulating shaft 6 also can be the pins that is welded on respectively on screw rod 41 and the regulating arm 3, and its concrete structure can include but not limited to the above-mentioned specific embodiment for multiple.
A kind of preferred embodiment in, positor provided by the present invention also comprises the handle 7 that is fixedly connected with reset arm 2.In the operation, can control handle 7, prevent that reset arm 2 and the clamping in reseting procedure of second crossbeam are insecure, unstability or skew occur, further improve the security reliability of operation, reduce operation risk.
Particularly, the affixed position of handle 7 is near second end of reset arm 2, in the operation; Second end is near second crossbeam; Its stressed maximum is installed in the position near second end with handle 7, can prevent reset arm 2 skews the most effortlessly; Further reduce the difficulty of performing the operation, improve the security reliability of operation.
Except above-mentioned positor, the present invention also provides a kind of spondylolishesis resetting means that comprises above-mentioned positor, this spondylolishesis resetting means comprise positor and with the supporting supporting apparatus of positor.In the reduction of spondylolisthesis operation; Need in vertebra, implant the implant of at least two nail classes; Two implants are separate, and supporting apparatus can comprise first crossbeam and second crossbeam, and first crossbeam and second crossbeam can be respectively with two implants in one be fixedly connected.In operation; The fixed arm 1 of positor is linked together (fixed arm also can directly be connected on the bone, is fulcrum with bone) reset arm 2 and the second crossbeam clamping with first crossbeam; Regulate the subtended angle of fixed arm 1 and reset arm 2 through regulating arm 3; Regulate distance and angle between first crossbeam and second crossbeam, and then regulate distance and angle between two implants, reach the purpose of reduction of spondylolisthesis.
Need to prove that supporting apparatus as herein described is meant when accomplishing the spondylolishesis reattachment surgery general name of the equipment except that positor.Because the application only makes improvement to the positor of spondylolishesis resetting means, and miscellaneous equipment is not changed, those skilled in the art mix positor provided by the present invention according to existing equipment; Promptly can accomplish operation efficiently; Realize the object of the invention, therefore, the present invention does not do deeply to introduce further to supporting apparatus; The reader can repeat no more at this with reference to the correlation technique document.
Simultaneously, because supporting apparatus is a general name, can not be interpreted as that supporting apparatus is a device or device; First crossbeam of for example being carried among the present invention and second crossbeam; Though both belong to the part of supporting apparatus, can be split, be fixedly connected with two implants respectively.
Particularly, second end of reset arm 2 has the notch that resets that cooperates with second crossbeam, and second crossbeam is arranged in the notch that resets.The concrete structure of notch of resetting can be basic demand in operation, second crossbeam and reset arm 2 being linked together according to the design of the practical structures of second crossbeam, drives implant and moves the realization reduction of spondylolisthesis so that reset arm 2 can effectively promote second crossbeam.
More than spondylolishesis resetting means provided by the present invention and positor thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. a positor that is used for the spondylolishesis resetting means is characterized in that, comprises the driving device of the said regulating arm motion of fixed arm, reset arm, regulating arm and driving, and first end of said fixed arm and first end of said reset arm are hinged; First end of said regulating arm and the middle part of said fixed arm are hinged, and the middle part of second end and said reset arm is slidingly connected along its bearing of trend, and the middle part is connected with said driving device.
2. the positor that is used for the spondylolishesis resetting means according to claim 1; It is characterized in that; Said driving device specifically comprise screw rod and with said screw rod nut engaged; Said fixed arm has through hole, and an end and the said regulating arm of said screw rod are slidingly connected, and the other end penetrates said through hole.
3. the positor that is used for the spondylolishesis resetting means according to claim 2; It is characterized in that; Also comprise first regulating shaft that connects said screw rod and said regulating arm; First chute that said regulating arm is identical with its bearing of trend, said screw rod has connecting hole, and said first regulating shaft is located in said first chute and the said connecting hole simultaneously.
4. the positor that is used for the spondylolishesis resetting means according to claim 3; It is characterized in that; The middle part of said reset arm is provided with second chute identical with its bearing of trend; Second end of said regulating arm is fixedly connected with second regulating shaft, and said second regulating shaft slides along said second chute.
5. according to each described positor that is used for the spondylolishesis resetting means of claim 1 to 4, it is characterized in that, also comprise the handle that is fixedly connected with said reset arm.
6. the positor that is used for the spondylolishesis resetting means according to claim 5 is characterized in that, the affixed position of said handle is near second end of said reset arm.
7. spondylolishesis resetting means comprises and implants the supporting apparatus that intravertebral implant is fixedly connected, and it is characterized in that, comprises like each described positor of claim 1 to 6.
8. spondylolishesis resetting means according to claim 7; It is characterized in that; Said supporting apparatus comprises first crossbeam and second crossbeam, and second end of the fixed arm of said positor and said first crossbeam are hinged, second end of the reset arm of said positor and the said second crossbeam clamping.
9. spondylolishesis resetting means according to claim 8 is characterized in that, second end of said reset arm has the notch that resets that cooperates with said second crossbeam, and said second crossbeam is arranged in the said notch that resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110386926 CN102429712B (en) | 2011-11-28 | 2011-11-28 | Spondylolisthesis repositioning device and repositor thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110386926 CN102429712B (en) | 2011-11-28 | 2011-11-28 | Spondylolisthesis repositioning device and repositor thereof |
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| CN102429712A true CN102429712A (en) | 2012-05-02 |
| CN102429712B CN102429712B (en) | 2013-09-18 |
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| CN 201110386926 Active CN102429712B (en) | 2011-11-28 | 2011-11-28 | Spondylolisthesis repositioning device and repositor thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244290A1 (en) * | 2019-06-03 | 2020-12-10 | 中兴通讯股份有限公司 | Adjustable support assembly for equipment installation and adjustable mounting member |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113746A (en) * | 1994-06-17 | 1995-12-27 | 泰山医学院附属医院 | Lumber spondylolisthesis reprositor |
| CN101052357A (en) * | 2004-08-10 | 2007-10-10 | 华沙整形外科股份有限公司 | Reducing instrument for spinal surgery |
| US20080065079A1 (en) * | 2006-09-11 | 2008-03-13 | Aurelien Bruneau | Spinal Stabilization Devices and Methods of Use |
| CN202409102U (en) * | 2011-11-28 | 2012-09-05 | 上海拓腾医疗器械有限公司 | Spondylolisthesis restoring device and restorer thereof |
-
2011
- 2011-11-28 CN CN 201110386926 patent/CN102429712B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113746A (en) * | 1994-06-17 | 1995-12-27 | 泰山医学院附属医院 | Lumber spondylolisthesis reprositor |
| CN101052357A (en) * | 2004-08-10 | 2007-10-10 | 华沙整形外科股份有限公司 | Reducing instrument for spinal surgery |
| US20080065079A1 (en) * | 2006-09-11 | 2008-03-13 | Aurelien Bruneau | Spinal Stabilization Devices and Methods of Use |
| CN202409102U (en) * | 2011-11-28 | 2012-09-05 | 上海拓腾医疗器械有限公司 | Spondylolisthesis restoring device and restorer thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020244290A1 (en) * | 2019-06-03 | 2020-12-10 | 中兴通讯股份有限公司 | Adjustable support assembly for equipment installation and adjustable mounting member |
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| Publication number | Publication date |
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| CN102429712B (en) | 2013-09-18 |
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Owner name: SHANGHAI SANYOU MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI TATENG MEDICAL DEVICE CO.,LTD. Effective date: 20140609 |
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Effective date of registration: 20140609 Address after: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee after: Shanghai Sanyou Medical Devices Co., Ltd. Address before: 201209, Pudong New Area, Shanghai Qing Road 356, 3, 2 floor Patentee before: Shanghai Tateng Medical Device Co.,Ltd. |
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Address after: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee after: Shanghai Sanyou medical equipment Limited by Share Ltd Address before: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee before: Shanghai Sanyou Medical Devices Co., Ltd. |