CN201104916Y - Elastic vertebral column internal fixation device - Google Patents
Elastic vertebral column internal fixation device Download PDFInfo
- Publication number
- CN201104916Y CN201104916Y CNU2007201220593U CN200720122059U CN201104916Y CN 201104916 Y CN201104916 Y CN 201104916Y CN U2007201220593 U CNU2007201220593 U CN U2007201220593U CN 200720122059 U CN200720122059 U CN 200720122059U CN 201104916 Y CN201104916 Y CN 201104916Y
- Authority
- CN
- China
- Prior art keywords
- fixing device
- pedicle screw
- described pitman
- flexible spinal
- inner fixing
- 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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Abstract
The utility model discloses a elastic inside spinal column fixing device, comprising a pediculus arcus vertebrae screw, two connecting rods to fix the pediculus arcus vertebrae, a cross link bar between the two connecting rods, a U-type opening at the head of the pediculus arcus vertebrae screw; aiming at overcoming the drawback of stress shielding; which is characterized in that: a rigid elastic section is positioned on and integrated into the sectioned connecting rods between the two pediculus arcus vertebrae fixing screws. The elastic inside spinal column fixing device has the advantages that: the structure is simple, the integrated connection is firm; meanwhile, the connecting rod can stand certain deformation from multi-direction, therefore flexibility is increased.
Description
Technical field
This utility model relates to medical instruments field, specifically a kind of Wicresoft flexible spinal inner fixing device.
Background technology
At present, the internal fixation of spine device has been widely used in treatment lumbar vertebra compression fracture, tumor of spine, deformity of spine rectification and other various clinical treatments that need the spinal disease of operative treatment, and spinal column pedicle of vertebral arch internal fixation is the very rational a kind of method of the above-mentioned disease of treatment.For spinal column pedicle of vertebral arch inner fixing device in the prior art, implant pedicle screw and between pedicle screw, settle pitman.Its pitman uses an overall structure, owing to there is not flexibility, among postoperative fixation procedure, has the defective of stress shielding.
Summary of the invention
Goal of the invention of the present utility model be to provide a kind of simple in structure, can make connecting rod on multi-direction, bear certain deformation on the basis that one is connected firmly again, thereby have pliability, to reach the flexible spinal inner fixing device of the defective purpose that overcomes above-mentioned stress shielding.
Goal of the invention of the present utility model is achieved by the following technical solution: this utility model device, comprise pedicle screw, with pedicle screw installation two pitmans together, and the horizontal connecting rod between two pitmans, the head of pedicle screw is characterized in that for being provided with U font opening the described pitman segmentation of fixing between two pedicle screws is provided with a rigid elastic force section and forms the one connection.The rigid elastic force section of pitman described in the utility model is made of spring.Described pitman can curve certain angle by demand, the joint of being convenient to rotate at one end band.The described pitman wherein joint of an end is a turret head.Described pitman segmentation compresses and connects a locking nut below the opening of the U of pedicle screw font.Described pitman interlude is used for split type pedicle screw and the laterally installation of connecting rod.Described pitman is connected by horizontal butt hook with horizontal connecting rod.
This utility model compared with prior art has can the more effective advantage that overcomes stress shielding.
Description of drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is the elasticity pitman structural representation that this utility model is answered.
Specific embodiment
Below in conjunction with description of drawings this utility model is described in further detail:
Referring to shown in Figure 1, showed a kind of spinal column internal fixation device among the figure, comprise horizontal butt hook 1, horizontal connecting rod 2, U type pedicle screw 3, elasticity pitman 4, combination locking nut 5.As the structural representation that is depicted as elasticity pitman 4 of Fig. 2, pitman 4 segmentations are provided with a rigid elastic force section 403 and form one and connect.A wherein end 404 of elasticity pitman 4 has the turret head of being convenient to rotate, so that rotation.The interlude 402 of elasticity pitman 4 can curve certain angle by the operation demand, is used for being connected and installed of horizontal connecting rod 2 in addition.
Referring to shown in Figure 1, flexible spinal inner fixer described in the utility model comprises that 4, two elasticity pitmans 4 of two elasticity pitmans are connected by horizontal connecting rod 2, laterally connecting rod by horizontal butt hook 1 fastening with pitman 4 on.Segmentation is provided with elasticity pedicle screw 3 on the elasticity pitman 4, and it forms one by combination locking nut 5 in elasticity pitman 4 and connects.
Claims (7)
1, a kind of flexible spinal inner fixing device, comprise pedicle screw, with pedicle screw installation two pitmans together, and the horizontal connecting rod between two pitmans, the head of pedicle screw is characterized in that for being provided with U font opening the described pitman segmentation of fixing between two pedicle screws is provided with a rigid elastic force section and forms the one connection.
2, a kind of flexible spinal inner fixing device according to claim 1 is characterized in that the rigid elastic force section of described pitman is made of spring.
3, a kind of flexible spinal inner fixing device according to claim 2 is characterized in that described pitman can curve certain angle by demand, the joint of being convenient to rotate at one end band.
4, a kind of flexible spinal inner fixing device according to claim 3, it is characterized in that described pitman wherein the joint of an end be turret head.
5, a kind of flexible spinal inner fixing device according to claim 4 is characterized in that described pitman segmentation compresses and connects a locking nut below the opening of the U of pedicle screw font.
6, a kind of flexible spinal inner fixing device according to claim 5 is characterized in that described pitman interlude is used for split type pedicle screw and the laterally installation of connecting rod.
7, flexible spinal inner fixer according to claim 6 is characterized in that described pitman is connected by horizontal butt hook with horizontal connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201220593U CN201104916Y (en) | 2007-08-01 | 2007-08-01 | Elastic vertebral column internal fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201220593U CN201104916Y (en) | 2007-08-01 | 2007-08-01 | Elastic vertebral column internal fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201104916Y true CN201104916Y (en) | 2008-08-27 |
Family
ID=39956695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201220593U Expired - Fee Related CN201104916Y (en) | 2007-08-01 | 2007-08-01 | Elastic vertebral column internal fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201104916Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105816233A (en) * | 2015-01-05 | 2016-08-03 | 财团法人金属工业研究发展中心 | Bone fixing device |
| CN115670623A (en) * | 2022-12-29 | 2023-02-03 | 中国医学科学院北京协和医院 | Internal self-opening growth guiding spinal column orthopedic system |
-
2007
- 2007-08-01 CN CNU2007201220593U patent/CN201104916Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105816233A (en) * | 2015-01-05 | 2016-08-03 | 财团法人金属工业研究发展中心 | Bone fixing device |
| CN115670623A (en) * | 2022-12-29 | 2023-02-03 | 中国医学科学院北京协和医院 | Internal self-opening growth guiding spinal column orthopedic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20100801 |