CN203829024U - Adjustable elastic interspinous dynamic distraction device - Google Patents
Adjustable elastic interspinous dynamic distraction device Download PDFInfo
- Publication number
- CN203829024U CN203829024U CN201420101626.7U CN201420101626U CN203829024U CN 203829024 U CN203829024 U CN 203829024U CN 201420101626 U CN201420101626 U CN 201420101626U CN 203829024 U CN203829024 U CN 203829024U
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- China
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- square shaft
- sliding block
- right baffle
- groove
- plate
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Abstract
The utility model provides an adjustable elastic interspinous dynamic distraction device which comprises a left baffle and a right baffle. A fixed shell is arranged between the left baffle and the right baffle, a check block is arranged in the right baffle, a square shaft is arranged in the left baffle, sliding blocks are arranged between the check block and the square shaft and divided into the upper sliding block and the lower sliding block, a pointed groove is formed between the upper sliding block and the lower sliding block and corresponds to a groove in the square shaft, springs are arranged on the convex parts of the upper sliding block and the lower sliding block respectively and connected with guide pins, the guide pins are connected with limiting plates which are provided with locating blocks, ejector pins are arranged among the locating blocks, the guide pins and the limiting plates, an adjustment lever is arranged in an inner hole of the square shaft, and the front end of the adjustment lever is located in the groove between the sliding blocks and the square shaft. Flexible design is adopted, pressure reduction is achieved when distraction is conducted, rigid shock brought by direct contact between the device and skeletons is avoided in an operation process or a postoperative recovery process, spinous process fractures and other complications are reduced, the device is easy to operate, tissue injuries are reduced to the maximum degree, and operation reversibility is greatly improved.
Description
Technical field
This utility model belongs to and should be medical instruments field, relates in particular between a kind of adjustable elasticity spinous process dynamically device for spreading.
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.At present main means of state's internal therapy lumbar spinal stenosis or to cut and to expand canalis spinalis, reach spinal canal decompression object.In the method operative treatment process, medical worker's complicated operation, performs the operation long compared with the time, not only damages spinal tissues, destroys its stability, also easily makes nerve suffer damage, poor reliability; Patient's hands postoperative bedrest is long, expense is many, is prone to multiple complications simultaneously.Recently, use in the world spinal column dynamic stability theory, the multiple device for spreading of utility model, between Lumbar Vertebral Canal, implant device for spreading, the principle of rigid staybolt opening apparatus is that the power that struts that inner fixing device the produces sections that can make to perform the operation is protruding after occurring relatively in spinous process, make the ligamenta flava of infolding open to reduce to intraspinal intrusion, the power that longitudinally struts producing between vertebral body can increase intervertebral foramina diameter, thereby alleviate the regression between adjacent vertebral bodies, realize the object that reduces Lumbar Vertebral Canal pressure, expands 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 costliness, easily produces and comes off or the complication such as fracture of spinous process occur.
Utility model content
This utility model provides dynamic device for spreading between a kind of adjustable elasticity spinous process in order to address the above problem.
The technical solution of the utility model is achieved in that dynamic device for spreading between a kind of adjustable elasticity spinous process, comprise right baffle-plate and right baffle plate, between right baffle-plate and right baffle plate, be provided with set casing, in right baffle plate, be provided with block, in right baffle-plate, be provided with square shaft, between block and square shaft, be provided with slide block, slide block is divided into upper and lower two parts, between upper sliding block, be provided with pointed groove, 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, in the middle of guide finger and limiting plate, be provided with thimble, 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 that the power that flexibly connects of two springs is 5～15N.
The beneficial effects of the utility model are: this utility model adopts flexible design, when strutting decompression, avoid operation process and directly contacted with skeleton the rigid shock bringing in post-operative recovery process, reducing the complication such as fracture of spinous process occurs, simple to operate, reduced to greatest extent tissue injury, the reversibility that makes to perform the operation increases greatly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is generalized section of the present utility model.
Part explanation: 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
For Comprehension and Implementation better, below in conjunction with accompanying drawing, this utility model is further described: dynamic device for spreading between a kind of adjustable elasticity spinous process, comprise right baffle-plate 3 and right baffle plate 6, between right baffle-plate 3 and right baffle plate 6, be provided with set casing 1, in right baffle plate 6, be provided with block 11, in right baffle-plate 3, be provided with square shaft 8, between block 11 and square shaft 8, be provided with slide block 7, slide block 7 is divided into upper and lower two parts, between upper sliding block 7, be provided with pointed groove, pointed groove is corresponding with the groove on square shaft 8, upper sliding block 7 bossings are 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, guide finger 10 and the middle thimble 4 that is provided with of limiting plate 9, square shaft 8 endoporus are provided with adjusting rod 2, in the groove of adjusting rod 2 front ends between slide block 7 and square shaft 8.
In the time using this utility model, first the device body except right baffle-plate 3 is put between spinous process, the placement location of adjusting device and angle, after adjusting, adjusting rod 2 is regulated with specific purpose tool, adjusting rod 2 is moved forward, adjusting rod 2 front ends are pointed, move forward along the pointed groove between groove and two slide blocks 7 of square shaft 8, upper sliding block 7 is strutted, upper sliding block 7 compresses the spring 12 at two ends, make guide finger 10 drive thimble 4 outwards to move, by thimble 4 and upper and lower two ends skeletal fixation, finally that right baffle-plate 3 is fixing along square shaft 8, realize automatically locking of whole device, firm with the skeleton constraint at upper and lower two ends.
Between adjustable elasticity spinous process, dynamically device for spreading need to satisfied working range be: adjustable dimension >=5mm (prolonging spinal column direction); Flexibly connect power: 5～15N.
This utility model, by the adjusting to adjusting rod, can be realized both sides thimble 5mm adjustment stroke, realizes the fixing and locking of optional position in 5mm simultaneously; By the calculating to spring and experimental verification, two ends spring force effectively can be controlled between 5～15N, reduce the impact to patient bone of installation initial stage or strenuous exercise, reduce patient's misery; Two side shields and slide block are selected polyimide material, the self-lubricating effect can increase adjusting time and the facility of installation; Other materials all adopts titanium material, when the rigidity of assurance device, realizes effectively affine with human body, is convenient to patient's recovery.
This utility model adopts flexible design, when strutting decompression, has avoided operation process and has directly contacted with skeleton the rigid shock bringing in post-operative recovery process, reducing the complication such as fracture of spinous process occurs, simple to operate, reduce to greatest extent tissue injury, the reversibility that makes to perform the operation increases greatly.
The foregoing is only better case study on implementation of the present utility model, be not used in and limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should belong to the scope of the claims of the present utility model.
Claims (2)
1. dynamic device for spreading between an adjustable elasticity spinous process, comprise right baffle-plate (3) and right baffle plate (6), between right baffle-plate (3) and right baffle plate (6), be provided with set casing (1), it is characterized in that being provided with in right baffle plate (6) block (11), in right baffle-plate (3), be provided with square shaft (8), between block (11) and square shaft (8), be provided with slide block (7), 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), guide finger (10) and the middle thimble (4) that is provided with of 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 the adjustable elasticity spinous process of one according to claim 1, is characterized in that the adjustable stroke of both sides thimble (4) is >=5mm, and the power that flexibly connects of two springs (12) is 5～15N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101626.7U CN203829024U (en) | 2014-03-07 | 2014-03-07 | Adjustable elastic interspinous dynamic distraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101626.7U CN203829024U (en) | 2014-03-07 | 2014-03-07 | Adjustable elastic interspinous dynamic distraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203829024U true CN203829024U (en) | 2014-09-17 |
Family
ID=51506924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101626.7U Withdrawn - After Issue CN203829024U (en) | 2014-03-07 | 2014-03-07 | Adjustable elastic interspinous dynamic distraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203829024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103784188A (en) * | 2014-03-07 | 2014-05-14 | 鞠传广 | Adjustable elastic interspinous dynamic propping-open device |
-
2014
- 2014-03-07 CN CN201420101626.7U patent/CN203829024U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103784188A (en) * | 2014-03-07 | 2014-05-14 | 鞠传广 | Adjustable elastic interspinous dynamic propping-open device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |