CN202376211U - Memory alloy vertebral body stabilizer - Google Patents
Memory alloy vertebral body stabilizer Download PDFInfo
- Publication number
- CN202376211U CN202376211U CN201120447247XU CN201120447247U CN202376211U CN 202376211 U CN202376211 U CN 202376211U CN 201120447247X U CN201120447247X U CN 201120447247XU CN 201120447247 U CN201120447247 U CN 201120447247U CN 202376211 U CN202376211 U CN 202376211U
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- vertebral body
- memory alloy
- pressure rings
- rings
- body stabilizer
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Abstract
The utility model discloses a memory alloy vertebral body stabilizer, which relates to a medical appliance. At least two main pressurizing rings are arranged on the memory alloy vertebral body stabilizer; auxiliary pressurizing rings are arranged between two adjacent main pressurizing rings, and are vertical to the main pressurizing rings; the number of the auxiliary pressurizing rings is one less than that of the main pressurizing rings; fixed grabs are arranged at end heads of the main pressurizing rings at the two ends, and the cross sections of the fixed grabs are flat. The memory alloy vertebral body stabilizer disclosed by the utility model has the advantages that the memory alloy vertebral body stabilizer is prepared from a nickel-titanium shape memory alloy wire with good biocompatibility and mechanical property in a winding manner; the sections of the fixed grabs are oblate, so that the contact area with the edge of a vertebral body is increased, and the risk that sclerotin on the edge of a vertebral foramen is absorbed due to over-large pressure is reduced. The memory alloy vertebral body stabilizer is exquisite in appearance and simple in production process, so that the production cost is reduced, and the vertebral body is not damaged in the implant process, so that the difficulty and risk of the operation is reduced.
Description
Technical field
This utility model relates to medical apparatus and instruments, and particularly the orthopaedics memorial alloy product that is used to implant is primarily aimed at the unsteady stabilization and reinforcement of spondylolysis.
Background technology
The pain at positions such as waist lower limb is perplexing people for a long time.One of cause of disease of this disease is that vertebral foramen sidewall all around oppresses that nervus centralis caused because dislocation takes place for vertebral body and vertebral body or intervertebral disc and vertebral body causes looseningly.When receiving wound or strong physical work, cause this disease the most easily.Main Therapeutic Method is to adopt operative treatment now, and the widespread Invasive lumbar fusion device cooperates implantation with nail-stick system.This kind method need be extractd intervertebral disc sometimes, and the utilization of nail-stick system must be punched, and the vertebral body people for damaging, strengthened the difficulty and the risk of operation, and expense is higher.Operation process is loaded down with trivial details, and the doctor needs consummate skill and just can implement.
The utility model content
The purpose of this utility model just provides the vertebral body regulator of a kind of stable dislocation of processing with marmem or loosening vertebra.
The solution that realizes this utility model purpose is that main pressure rings 1 is provided with two at least; Secondary pressure rings 2 is located between the adjacent two main pressure rings 1; And it is vertical with main pressure rings 1; Quantity is lacked one than main pressure rings 1, and the termination of the main pressure rings 1 at two ends is provided with fixedly drag hook 3, and fixedly the cross section of drag hook 3 is flat.
The utility model has the advantages that and adopt Ti-Ni marmem filament winding system to form with excellent biological compatibility and mechanical property; Its shape can effectively be pasted volt along vertebral body; Fixedly the cross section of drag hook is oblate; Increase the contact area with vertebral rim, reduced the absorbed risk of vertebral foramen edge sclerotin that causes because of pressure is excessive; For better fixing loosening vertebral body, symmetry is installed, stressed evenly, because of itself and skeleton applying, can not produce relative displacement and influence the surrounding tissue organ; Exquisite appearance; Production technology is simple, thereby has reduced production cost, has guaranteed patient's medical payment ability; Implantation process can not damage vertebral body; Directly get final product in the installation of the vertebral body vertebral foramen edge of loosening adjacent or indirect neighbor, not artificial destruction vertebral body, thereby reduced the difficulty and the risk of performing the operation
Description of drawings
Fig. 1 is the structural representation of this utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the A-A cutaway view of Fig. 1.
Fig. 5 is another structural representation of this utility model.
Fig. 6 is the vertical view of Fig. 5.
The specific embodiment
Utilize a Ti-Ni marmem alloy bar (silk) curved major pressure rings 1, with crooked more secondary pressure rings 2 on vertical of main pressure rings 1 anchor ring, crooked more main pressure rings 1 on the same plane of a last main pressure rings 1 and then.As required can also a crooked more secondary pressure rings 2 and a main pressure rings 1.Be each crooked fixing drag hook 3 of outboard end of both sides master's pressure rings 1 at two ends, fixedly the cross section of drag hook 3 is flat.Fixedly drag hook 3 and secondary pressure rings 2 at grade, opening is relative.So secondary pressure rings 2, fixedly the plane that forms of drag hook 3 is vertical with 1 of main pressure rings.
During use, the general paired use of this utility model is implanted when installing, and with strutting pincers both sides master's pressure rings 1 is strutted round about, and corresponding secondary pressure rings 2 also can be strutted certain clearance.The fixedly drag hook 3 of head and the tail both sides inserts respectively in the two loosening relatively joint vertebra vertebral foramens, is close to the inboard vertebral foramen arm of lamina of vertebral arch place.The anchor ring of main pressure rings 1 is attached on the plane at isthmus place of vertebra, and the anchor ring of secondary pressure rings 2 is attached on the plane that the adjacent spinous side of vertebra forms.To the product hot compress, because the effect of Ti-Ni marmem, main pressure rings 1 will reset with secondary pressure rings 2 with 40 ℃ of-50 ℃ of warm salines, drives fixedly that drag hook 3 will become flexible or the vertebral body and the intervertebral disc of slight shift are drawn over to one's side fixing.
Claims (2)
1. memorial alloy vertebral body regulator; It is characterized in that main pressure rings (1) is provided with two at least; Secondary pressure rings (2) is located between the adjacent two main pressure rings (1), and vertical with main pressure rings (1), and quantity is lacked one than main pressure rings (1); The termination of the main pressure rings (1) at two ends is provided with fixedly drag hook (3), and fixedly the cross section of drag hook (3) is flat.
2. according to the said memorial alloy vertebral body of claim 1 regulator, it is characterized in that said main pressure rings (1), secondary pressure rings (2), fixedly drag hook (3) is bent into a niti-shaped memorial alloy silk or rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120447247XU CN202376211U (en) | 2011-11-14 | 2011-11-14 | Memory alloy vertebral body stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120447247XU CN202376211U (en) | 2011-11-14 | 2011-11-14 | Memory alloy vertebral body stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202376211U true CN202376211U (en) | 2012-08-15 |
Family
ID=46624734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120447247XU Expired - Lifetime CN202376211U (en) | 2011-11-14 | 2011-11-14 | Memory alloy vertebral body stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202376211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622740A (en) * | 2013-12-12 | 2014-03-12 | 周建明 | Minimally invasive spine inner fixing system |
| CN103750892A (en) * | 2014-02-24 | 2014-04-30 | 张伟 | Titanium alloy bar used for minimally invasive surgeries of spine compression fractures |
| CN107157561A (en) * | 2017-05-09 | 2017-09-15 | 兰州西脉记忆合金股份有限公司 | A kind of tapered memory alloy for breastbone fixator |
-
2011
- 2011-11-14 CN CN201120447247XU patent/CN202376211U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622740A (en) * | 2013-12-12 | 2014-03-12 | 周建明 | Minimally invasive spine inner fixing system |
| CN103750892A (en) * | 2014-02-24 | 2014-04-30 | 张伟 | Titanium alloy bar used for minimally invasive surgeries of spine compression fractures |
| CN103750892B (en) * | 2014-02-24 | 2016-01-06 | 张伟 | A kind of compression fracture of spine Minimally Invasive Surgery titanium alloy bar |
| CN107157561A (en) * | 2017-05-09 | 2017-09-15 | 兰州西脉记忆合金股份有限公司 | A kind of tapered memory alloy for breastbone fixator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |