CN103784188B - Dynamic device for spreading between adjustable elasticity spinous process - Google Patents
Dynamic device for spreading between adjustable elasticity spinous process Download PDFInfo
- Publication number
- CN103784188B CN103784188B CN201410082234.5A CN201410082234A CN103784188B CN 103784188 B CN103784188 B CN 103784188B CN 201410082234 A CN201410082234 A CN 201410082234A CN 103784188 B CN103784188 B CN 103784188B
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- Prior art keywords
- right baffle
- plate
- square shaft
- groove
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000006837 decompression Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 208000037816 tissue injury Diseases 0.000 abstract description 4
- 230000002980 postoperative effect Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 206010025005 lumbar spinal stenosis Diseases 0.000 description 2
- 208000005198 spinal stenosis Diseases 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 208000008035 Back Pain Diseases 0.000 description 1
- 206010022562 Intermittent claudication Diseases 0.000 description 1
- 208000008930 Low Back Pain Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000021156 intermittent vascular claudication Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- 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, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides dynamic device for spreading between a kind of adjustable elasticity spinous process, comprise right baffle-plate and right baffle plate, set casing is provided with between right baffle-plate and right baffle plate, block is provided with in right baffle plate, square shaft is provided with in right baffle-plate, slide block is provided with between block and square shaft, slide block is divided into upper and lower two parts, pointed groove is provided with between upper sliding block, pointed groove is corresponding with the groove on square shaft, upper sliding block bossing is equipped with spring, and be connected with guide finger, guide finger is connected with limiting plate, limiting plate is provided with locating piece, locating piece, thimble is provided with in the middle of guide finger and limiting plate, square shaft endoporus is provided with adjusting rod, in the groove of adjusting rod front end between slide block and square shaft.The present invention adopts flexible design, while strutting decompression, avoids operation process and directly contacts with skeleton the rigid shock brought with in post operative recovery procedures, reduce the complication such as fracture of spinous process to occur, simple to operate, decrease tissue injury to greatest extent, operation reversibility is increased greatly.
Description
Technical field
The invention belongs to and should be medical instruments field, relate in particular to dynamic device for spreading between a kind of adjustable elasticity spinous process.
Background technology
Lumbar spinal stenosis is commonly encountered diseases and frequently-occurring disease, and its cause of disease is that lumbar vertebra tube chamber footpath is narrow, and main manifestations is low back pain, and when lower limb are stood or walked, fiber crops are swollen aches and intermittent claudication.The main means of current state internal therapy lumbar spinal stenosis are still to cut and to expand canalis spinalis, reach spinal canal decompression object.In the method surgical procedure, medical worker's complicated operation, the comparatively time of performing the operation is long, not only injured spinal tissue, destroys its stability, also easily makes nerve suffer damage, poor reliability; Patient's Post operation bed rest time is long, expense is many, easily occurs multiple complications simultaneously.Recently, use spinal column dynamic stability theory in the world, invent multiple device for spreading, device for spreading is implanted between Lumbar Vertebral Canal, between spinous process, the principle of internal fixtion device for spreading is that the distracting force that inner fixing device produces can make operated level generation relatively rear convex, the ligamenta flava of infolding is made to open to reduce to intraspinal intrusion, the longitudinal distracting force produced between vertebral body can increase intervertebral foramina diameter, thus the regression alleviated between adjacent vertebral bodies, the object realize reducing Lumbar Vertebral Canal pressure, expanding lumbar vertebra tube chamber footpath and decompression, operation process is simple, tissue injury is little, few intercurrent disease.But external device for spreading price comparison is expensive, easily produces and come off or the complication such as fracture of spinous process occur.
Summary of the invention
The present invention provides dynamic device for spreading between a kind of adjustable elasticity spinous process in order to solve the problem.
Technical scheme of the present invention is achieved in that dynamic device for spreading between adjustable elasticity spinous process, comprise right baffle-plate and right baffle plate, set casing is provided with between right baffle-plate and right baffle plate, block is provided with in right baffle plate, square shaft is provided with in right baffle-plate, slide block is provided with between block and square shaft, slide block is divided into upper and lower two parts, pointed groove is provided with between upper sliding block, pointed groove is corresponding with the groove on square shaft, upper sliding block bossing is equipped with spring, and be connected with guide finger, guide finger is connected with limiting plate, limiting plate is provided with locating piece, locating piece, thimble is provided with in the middle of guide finger and limiting plate, square shaft endoporus is provided with adjusting rod, in the groove of adjusting rod front end between slide block and square shaft,
Preferably, the adjustable stroke of both sides thimble is >=5mm, and the power that flexibly connects of two springs is 5 ~ 15N.
The invention has the beneficial effects as follows: the present invention adopts flexible design, while strutting decompression, avoid operation process and directly contact with skeleton the rigid shock brought with in post operative recovery procedures, reduce the complication such as fracture of spinous process to occur, simple to operate, decrease tissue injury to greatest extent, operation reversibility is increased greatly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is generalized section of the present invention.
Part illustrates: 1, set casing, 2, adjusting rod, 3, right baffle-plate, 4, thimble, 5, locating piece, 6, right baffle plate, 7, slide block, 8, square shaft, 9, limiting plate, 10, guide finger, 11, block, 12, spring.
Detailed description of the invention
In order to Comprehension and Implementation better, below in conjunction with accompanying drawing, the invention will be further described: dynamic device for spreading between adjustable elasticity spinous process, comprise right baffle-plate 3 and right baffle plate 6, set casing 1 is provided with between right baffle-plate 3 and right baffle plate 6, block 11 is provided with in right baffle plate 6, square shaft 8 is provided with in right baffle-plate 3, slide block 7 is provided with between block 11 and square shaft 8, slide block 7 is divided into upper and lower two parts, pointed groove is provided with between upper sliding block 7, pointed groove is corresponding with the groove on square shaft 8, upper sliding block 7 bossing is equipped with spring 12, and be connected with guide finger 10, guide finger 10 is connected with limiting plate 9, limiting plate 9 is provided with locating piece 5, locating piece 5, thimble 4 is provided with in the middle of guide finger 10 and limiting plate 9, square shaft 8 endoporus is provided with adjusting rod 2, in the groove of adjusting rod 2 front end between slide block 7 and square shaft 8.
When using of the present invention, first the device body except right baffle-plate 3 is put between spinous process, the placement location of adjusting device and angle, after adjusting, with specific purpose tool, adjusting rod 2 is regulated, adjusting rod 2 is moved forward, adjusting rod 2 front end is pointed, pointed groove between the groove and two slide blocks 7 of square shaft 8 moves forward, upper sliding block 7 is strutted, upper sliding block 7 compresses the spring 12 at two ends, guide finger 10 is made to drive thimble 4 outwards movement, by thimble 4 and the skeletal fixation of upper and lower two ends, finally right baffle-plate 3 is fixed along square shaft 8, realize automatically locking of whole device, retrain firmly with the skeleton at upper and lower two ends.
Between adjustable elasticity spinous process, the working range of dynamic device for spreading demand fulfillment is: adjustable dimension >=5mm (prolonging spinal column direction); Flexibly connect power: 5 ~ 15N.
The present invention, by the adjustment to adjusting rod, can realize both sides thimble 5mm adjustment stroke, realizes the fixing and locking of optional position in 5mm simultaneously; By to the calculating of spring and experimental verification, two ends spring force effectively can be controlled between 5 ~ 15N, reduce installation initial stage or strenuous exercise to the impact of patient bone, reduce the misery of patient; Two side shields and slide block select polyimide material, self-lubricating effect when can increase adjustment and the facility of installation; Other materials all adopts titanium material, and while the rigidity of assurance device, realization is effectively affine with human body, is convenient to the recovery of patient.
The present invention adopts flexible design, while strutting decompression, avoids operation process and directly contacts with skeleton the rigid shock brought with in post operative recovery procedures, reduce the complication such as fracture of spinous process to occur, simple to operate, decrease tissue injury to greatest extent, operation reversibility is increased greatly.
The foregoing is only better case study on implementation of the present invention, be not used in and limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should belong to the scope of the claims of the present invention.
Claims (2)
1. dynamic device for spreading between adjustable elasticity spinous process, comprise right baffle-plate (3) and right baffle plate (6), set casing (1) is provided with between right baffle-plate (3) and right baffle plate (6), it is characterized in that being provided with block (11) in right baffle plate (6), square shaft (8) is provided with in right baffle-plate (3), slide block (7) is provided with between block (11) and square shaft (8), slide block (7) is divided into upper and lower two parts, upper sliding block is provided with pointed groove between (7), pointed groove is corresponding with the groove on square shaft (8), upper sliding block (7) bossing is equipped with spring (12), and be connected with guide finger (10), guide finger (10) is connected with limiting plate (9), limiting plate (9) is provided with locating piece (5), locating piece (5), thimble (4) is provided with in the middle of guide finger (10) and limiting plate (9), square shaft (8) endoporus is provided with adjusting rod (2), adjusting rod (2) front end is positioned at the groove between slide block (7) and square shaft (8).
2. dynamic device for spreading between adjustable elasticity spinous process according to claim 1, it is characterized in that the adjustable stroke of both sides thimble (4) is >=5mm, the power that flexibly connects of two springs (12) is 5 ~ 15N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410082234.5A CN103784188B (en) | 2014-03-07 | 2014-03-07 | Dynamic device for spreading between adjustable elasticity spinous process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410082234.5A CN103784188B (en) | 2014-03-07 | 2014-03-07 | Dynamic device for spreading between adjustable elasticity spinous process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103784188A CN103784188A (en) | 2014-05-14 |
| CN103784188B true CN103784188B (en) | 2015-08-19 |
Family
ID=50660548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410082234.5A Expired - Fee Related CN103784188B (en) | 2014-03-07 | 2014-03-07 | Dynamic device for spreading between adjustable elasticity spinous process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103784188B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5860977A (en) * | 1997-01-02 | 1999-01-19 | Saint Francis Medical Technologies, Llc | Spine distraction implant and method |
| JP2012501231A (en) * | 2008-08-28 | 2012-01-19 | ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Bone-derived interspinous spacer |
| CN201295279Y (en) * | 2008-11-10 | 2009-08-26 | 创生医疗器械(江苏)有限公司 | Interspinal strutting device |
| WO2010108333A1 (en) * | 2009-03-27 | 2010-09-30 | Industrial Technology Research Institute | Spinal dynamic stabilization device |
| CA3003975A1 (en) * | 2009-12-31 | 2011-07-07 | Ldr Medical | Anchoring device, intervertebral implant and implantation instrument |
| IT1399961B1 (en) * | 2010-05-11 | 2013-05-09 | Meddev Sagl | INTERSPINOSIS LOADER DEVICE |
| CN201727573U (en) * | 2010-07-31 | 2011-02-02 | 李照文 | Multidirectional dynamic stabilizer for spinal joints |
| CN201920883U (en) * | 2011-01-18 | 2011-08-10 | 山东威高骨科材料有限公司 | Spinous process retainer |
| CN203829024U (en) * | 2014-03-07 | 2014-09-17 | 鞠传广 | Adjustable elastic interspinous dynamic distraction device |
-
2014
- 2014-03-07 CN CN201410082234.5A patent/CN103784188B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103784188A (en) | 2014-05-14 |
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Granted publication date: 20150819 Termination date: 20190307 |