CN2294706Y - Internal fixer for spinal column - Google Patents
Internal fixer for spinal column Download PDFInfo
- Publication number
- CN2294706Y CN2294706Y CN 97214247 CN97214247U CN2294706Y CN 2294706 Y CN2294706 Y CN 2294706Y CN 97214247 CN97214247 CN 97214247 CN 97214247 U CN97214247 U CN 97214247U CN 2294706 Y CN2294706 Y CN 2294706Y
- Authority
- CN
- China
- Prior art keywords
- screw
- utility
- model
- screw nail
- processed
- 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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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses an inner fixing device for spinal columns. The utility model comprises a screw nail, the top of the screw nail is provided with a tail slot of the screw nail, and the inner wall of the tail slot of the screw nail is provided with threads. The utility model is characterized in that a fixed rod sheathed with a C-shaped ring is arranged in the tail slot of the screw nail, a stopping screwed block whose outer wall is provided with threads is screwed in the tail slot of the screw nail to press the C-shaped ring, and a cap is covered on the top of the screw nail. The utility model has the advantages of simple structure, stable mechanical property, easy operation and installation in operations and convenient extraction. The utility model can be used for the correction of the lateral bending of spinal columns, the restoration and the fixation of the fracture of spinal columns and the therapy of the slippage of vertebral bodies.
Description
This utility model relates to medical apparatus and instruments, especially relates to a kind of spinal column internal fixation device.
The pedicle of vertebral arch inner fixer that uses has CD, DlckShi inner fixer at present, the CD inner fixer is mainly used in treatment spinal fracture and lateral bending, and the DlckShi inner fixer generally can only be used for fracture, but these two kinds of complicated in mechanical structure of inner fixer own, the joint screw is more, installs complicated in the operation.And the Steffee steel plate is used for the treatment of spondylolishesis more, also can be used for fracture, but can not make the reduction of the fracture.
The purpose of this utility model is to provide a kind of resetting and the treatment of fixing and centrum olisthe, simple in structure, spinal column internal fixation device that easy operating is installed of scoliosis, spinal fracture that can be used to correct.
The purpose of this utility model is achieved in that this utility model comprises screw, be processed with the screw stern notch at the top of screw, screw stern notch inwall is processed with screw thread, feature is to be provided with the fixed bar that has overlapped C type ring in the screw stern notch, the threaded spiral shell piece that stops of outer wall processing screws in the screw stern notch, push down C type ring, medicated cap covers at the screw top.
The fixed bar outer wall is processed into the granule face.Be processed with hex hole in the middle of stopping the spiral shell piece, be processed with diameter on the medicated cap greater than the circular hole that stops spiral shell piece hexagonal aperture.
This utility model is the inner fixer that is applied to spinal surgery, earlier the screw pedicle is screwed in vertebral body during operation, again fixed bar is curved physiologic radian, the cover upper C shape ring is put into the screw stern notch, screw-in stops the spiral shell piece, push down C type ring, capped screws with instrument then and stops the spiral shell piece, urgent medicated cap is installed lateral connector and is got final product.This utility model is simple in structure, stable mechanical property, and easy operating is installed in the operation, takes out also easily, can be used for correcting the resetting of scoliosis, spinal fracture, the fixing treatment that reaches centrum olisthe.
Fig. 1 is an external structure sketch map of the present utility model.
Fig. 2 is a block diagram of the present utility model.
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
The top of screw 1 of the present utility model is processed with screw stern notch 2, screw stern notch 2 inwalls are processed with screw thread, fixed bar 3 outer walls are processed into the granule face, C type ring 4 is enclosed within the middle of the fixed bar 3, the fixed bar 3 that is with C type ring 4 is put into the screw stern notch 2 at screw 1 top, stop that spiral shell piece 5 outer walls are processed with screw thread, the centre is processed with hex hole, stop that spiral shell piece 5 screws in the screw stern notch 2, push down C type ring 4, again medicated cap 6 is covered at screw 1 top, be processed with diameter on the medicated cap 6 greater than the circular hole that stops spiral shell piece 5 hexagonal apertures.
Claims (3)
1, a kind of spinal column internal fixation device, comprise screw (1), be processed with screw stern notch (2) at the top of screw (1), screw stern notch (2) inwall is processed with screw thread, it is characterized in that: in screw stern notch (2), be provided with the fixed bar (3) that has overlapped C type ring (4), the threaded spiral shell piece (5) that stops of outer wall processing screws in the screw stern notch (2), pushes down C type ring (4), and medicated cap (6) covers at screw (1) top.
2, a kind of spinal column internal fixation device as claimed in claim 1 is characterized in that: be processed with hex hole in the middle of stopping spiral shell piece (5), be processed with diameter on the medicated cap (6) greater than the circular hole that stops spiral shell piece (5) hexagonal aperture.
3, a kind of spinal column internal fixation device as claimed in claim 1 is characterized in that: fixed bar (3) outer wall is processed into the granule face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97214247 CN2294706Y (en) | 1997-04-17 | 1997-04-17 | Internal fixer for spinal column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97214247 CN2294706Y (en) | 1997-04-17 | 1997-04-17 | Internal fixer for spinal column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2294706Y true CN2294706Y (en) | 1998-10-21 |
Family
ID=33931762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97214247 Expired - Fee Related CN2294706Y (en) | 1997-04-17 | 1997-04-17 | Internal fixer for spinal column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2294706Y (en) |
-
1997
- 1997-04-17 CN CN 97214247 patent/CN2294706Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |