CN2406622Y - Retractor for dura mater spinalis and nerve roots - Google Patents
Retractor for dura mater spinalis and nerve roots Download PDFInfo
- Publication number
- CN2406622Y CN2406622Y CN 00213079 CN00213079U CN2406622Y CN 2406622 Y CN2406622 Y CN 2406622Y CN 00213079 CN00213079 CN 00213079 CN 00213079 U CN00213079 U CN 00213079U CN 2406622 Y CN2406622 Y CN 2406622Y
- Authority
- CN
- China
- Prior art keywords
- nerve
- retractor
- retracting
- spinal dura
- dura mater
- 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)
Abstract
The utility model relates to a retractor for spinal dura maters and nerve roots. The utility model is composed of a nerve retracting part, a handle part and a hand held part, wherein, the nerve retracting part comprises a head part and an end part, the head part is in a half ring structure of which the lower end is a wing-shaped tail, and the upper end of the half ring structure is connected with the lower end of the end part; the handle part is in a bending pipe shape, one end of the handle part is connected with the upper end of the end part of the nerve retracting part, and the other end of the handle part is connected with the hand held part. When the retractor is used for retracting the spinal dura maters and the nerve roots, cauda equina nerves, the nerve roots and the spinal dura mater can be effectively protected and avoided from damaging. Only one retractor can be used for retracting the spinal dura maters and the nerve roots, and the manipulation of other operations in vertebra pipes is not hindered. Through adjusting the length of a crank of the retractor, the utility model can be suitable for knife edges with different depths, which is convenient for the manipulation.
Description
This utility model relates to a kind of orthopaedics spinal operation special equipment, particularly a kind of spinal dura mater and nerve root retractors.
Existing be used for that spinal dura mater and nerve root retract mainly contain nerve dissector and nerve root retractor, nerve dissector retracts portion's bent-up end, the nerve portion of retracting by Handheld Division, nerve and directly holds three parts to form, and nerve retracts portion's bent-up end and straight end is flat-headed prolate strip; Nerve root retractor retracts portion's three parts by Handheld Division, neural hook portion, nerve to be formed, and neural hook portion is a circular right angle crotch, and the nerve portion of retracting is a flat-headed prolate strip.This prolate strip flat-headed design is incompatible with the pipe shape inwall of canalis spinalis, easily produces cutting sample cauda equina nerve and nerve root injury because of a contact causes nerve to weigh wounded and lateral margin causes; Be straight strip in the middle of nerve dissector and the nerve root retractor and be difficult for bending, when appearing canalis spinalis sidewall and antetheca, hinder and carry out other operations; The neural hook portion of nerve root retractor is a circular right angle crotch, and the canalis spinalis sidewall and the antetheca that want to appear enough undergo surgery, and then needs many should be used for pushing open spinal dura mater and nerve root simultaneously, needs several assistants to assist, and the utmost point is not easy to operation technique.
The purpose of this utility model is at above-mentioned the deficiencies in the prior art part, a kind of spinal dura mater and nerve root retractors are provided, the head that its nerve retracts portion is that the lower end is the semi-circular structure of wing tail, when retracting spinal dura mater and nerve root, can protect cauda equina nerve, nerve root and spinal dura mater to avoid damage, and the antetheca of canalis spinalis and sidewall are fully exposed; Its shank is a syphon shape, can make retractor not hinder operation technique in other canalis spinalis.
The purpose of this utility model is achieved through the following technical solutions: a kind of spinal dura mater and nerve root retractors, retracting portion, shank, Handheld Division by nerve forms, the nerve portion of retracting comprises head and end two parts, head is that the lower end is the semi-circular structure of wing tail, its upper end links to each other with the lower end of end, shank is a syphon shape, and an end links to each other with the upper end that nerve retracts the portion end, and the other end links to each other with the Handheld Division.Not only can not cause cauda equina nerve and nerve root when the head that retracts portion with nerve is pushed spinal dura mater and nerve root open stimulates and damage, and it is played isolate fully and protective effect, is convenient to operation technique, reduces and accidentally injure.Shank can make things convenient for other operation techniques in the canalis spinalis for the syphon shape structure.
This utility model compared with prior art has following advantage: this nerve root retractors can effectively be protected cauda equina nerve, nerve root and spinal dura mater when retracting spinal dura mater and nerve root, avoids damage; Only can retract spinal dura mater and nerve root, the antetheca of canalis spinalis and sidewall are fully exposed, save staff, make retractor not hinder operation technique in other canalis spinalis with 1 retractor; By regulating the crank length of retractor, can adapt to the different depth edge of a knife, easy to operate.
Accompanying drawing 1 is a structural representation of the present utility model; Accompanying drawing 2 is B-B profiles that its nerve retracts size portion; Accompanying drawing 3 is that its nerve retracts size portion left view.
Below in conjunction with accompanying drawing in detail embodiment of the present utility model is described in detail: a kind of spinal dura mater and nerve root retractors, retracting portion 1, shank 4, Handheld Division 5 by nerve forms, nerve retracts portion 1 and comprises head 6 and end 3 two parts, head 6 is the semi-circular structure of wing tail for the lower end, its upper end links to each other with the lower end of end 3, shank 4 is a syphon shape, and an end links to each other with the upper end that nerve retracts portion end 3, and the other end links to each other with Handheld Division 5.The end 3 that nerve retracts portion is hollow tubular structure, and spiral button 2 is arranged on it, and an end of shank 4 is positioned at the pipe that nerve retracts portion end 3, and is fixedly connected by spiral button 2.Shank 4 is the square bend pipe.Nerve retracts 2/5 of the wide circular arc for diameter 17mm of the arc of semi-circular structure of head 6 of portion during making, highly be 20mm, the edge circle, the trailing edge of the back curve of the wing tail of its lower end and semi-ring type structure joins with tangent line, arc diameter 15mm, its tail point and semi-circular structure trailing edge extended line be apart from 5mm, between the both side edges of semi-circular structure and tail point with the transition of curved circular line.The length of Handheld Division 5 is 80mm, diameter 25mm.Shank 4 is angle bend always, and an end of end hollow pipe coupling that retracts portion with nerve is for carefully cylindrical, diameter 4mm, long 70mm, and an end that links to each other with the Handheld Division is thick portion, slightly minister 200mm, diameter are 10mm.The end 3 that nerve retracts portion is hollow round tubular, and length is 80mm, its external diameter 6mm, internal diameter 4mm, and 10mm place, 3 top establishes fixedly spiral button apart from the end.Its head 6 that retracts portion is the semi-ring type structure of wing tail, in use, can effectively protect cauda equina nerve, nerve root and spinal dura mater, avoids damage.Only need 1 retractor that the antetheca of canalis spinalis and sidewall are fully exposed during operation, save staff, make things convenient for other operation techniques in the canalis spinalis again.By regulating the spiral button 2 on it, the length of its shank of scalable is to adapt to the operation technique of the different depth edge of a knife.
Claims (3)
1, a kind of spinal dura mater and nerve root retractors, retracting portion, shank, Handheld Division by nerve forms, it is characterized in that the nerve portion of retracting comprises head and end two parts, head is that the lower end is the semi-circular structure of wing tail, its upper end links to each other with the lower end of end, shank is a syphon shape, and an end links to each other with the upper end that nerve retracts the portion end, and the other end links to each other with the Handheld Division.
2, spinal dura mater according to claim 1 and nerve root retractors is characterized in that the end that nerve retracts portion is a hollow tubular structure, and the spiral button is arranged on it, and an end of shank is positioned at the pipe that nerve retracts the portion end, and is fixedly connected by the spiral button.
3, spinal dura mater according to claim 1 and nerve root retractors is characterized in that shank is the square bend pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213079 CN2406622Y (en) | 2000-01-07 | 2000-01-07 | Retractor for dura mater spinalis and nerve roots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00213079 CN2406622Y (en) | 2000-01-07 | 2000-01-07 | Retractor for dura mater spinalis and nerve roots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406622Y true CN2406622Y (en) | 2000-11-22 |
Family
ID=33579449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00213079 Expired - Fee Related CN2406622Y (en) | 2000-01-07 | 2000-01-07 | Retractor for dura mater spinalis and nerve roots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406622Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108957A (en) * | 2016-06-23 | 2016-11-16 | 梁静萍 | The stripped finger of passivity tractive patron saint |
-
2000
- 2000-01-07 CN CN 00213079 patent/CN2406622Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108957A (en) * | 2016-06-23 | 2016-11-16 | 梁静萍 | The stripped finger of passivity tractive patron saint |
| CN106108957B (en) * | 2016-06-23 | 2019-07-23 | 梁静萍 | Passivity drawing patron saint is stripped finger |
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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 |