CN202505441U - Combined type posterior longitudinal ligament hook knife - Google Patents
Combined type posterior longitudinal ligament hook knife Download PDFInfo
- Publication number
- CN202505441U CN202505441U CN2011205414753U CN201120541475U CN202505441U CN 202505441 U CN202505441 U CN 202505441U CN 2011205414753 U CN2011205414753 U CN 2011205414753U CN 201120541475 U CN201120541475 U CN 201120541475U CN 202505441 U CN202505441 U CN 202505441U
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- CN
- China
- Prior art keywords
- billhook
- hook
- posterior longitudinal
- longitudinal ligament
- knife
- 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 relates to a combined type posterior longitudinal ligament hook knife and belongs to the field of spine surgery medical instruments. The combined type posterior longitudinal ligament hook knife comprises a hook knife handle and a hook knife head which are connected into a whole through a clamping buckle. The hook knife head comprises a hook knife rod, a hook knife back, a knife blade and a hook tip which is at the front end, wherein the knife blade is opposite to the hook knife back, an include angle of 90 degrees is formed by the hook knife rod and the hook knife back, the length of a hook is 4 millimeters, and the hook tip is thin, circular and blunt. When the hook tip is inserted under a posterior longitudinal ligament and rotates, adhesion between a dura and the posterior longitudinal ligament can be separated, the ligament is cut crossly by means of lifting and pulling, and a spinal dura mater, a venous plexus inside an epidural gap and a spinal cord are not prone to damage. The combined type posterior longitudinal ligament hook knife is simple in structure and convenient to operate. The hook knife head can be replaced repeatedly, and safety of surgery is improved.
Description
Technical field
This utility model relates to a kind of combination type posterior longitudinal ligament billhook, belongs to the spinal surgery medical instruments field.
Background technology
Excision posterior longitudinal ligament technology is comparatively ripe in the operation at present, the probability of damage ligament undertissue when the especially use of posterior longitudinal ligament hook, the design of middle flute profile can significantly reduce sharp knife incision posterior longitudinal ligament.But aforesaid operations divided for two steps could accomplish; And when using sharp knife, the sharp knife point of a knife points to deep nervous tissue, still has the risk of damage dura mater and spinal cord; And it is higher to patient's specification requirement.
China utility model patent CN201020014626.5 discloses a kind of anterior cervical vertebrae posterior longitudinal ligament resection billhook.But this billhook designs for integral type, and cutter head is easy blunt in using repeatedly, and cutter head can not be changed; The billhook head and the angle between the billhook handle that are designed are 30 °, and it is limited that bill inserts the posterior longitudinal ligament distance, and single cuts off the limited length of posterior longitudinal ligament.
Summary of the invention
The purpose of this utility model provides a kind of more convenient operation, safer, the cross-section apparatus of the better posterior longitudinal ligament of result of use, solves the deficiency of above-mentioned prior art.
This utility model is that the technical scheme that the above-mentioned deficiency of solution is taked is:
This billhook is made up of billhook handle, two parts of billhook head.Billhook handle and billhook head can link into an integrated entity through buckle; Said billhook head is made up of back to the blade of side and the bill of front end billhook bar, the billhook back of the body, billhook; Form angle between the billhook bar and the billhook back of the body.
Billhook handle and billhook head are two parts that are separated from each other, and can link into an integrated entity through buckle, can change the billhook head as required at any time.
Be 90 ° of angles between the billhook bar and the billhook back of the body.
The long 4mm of billhook sword, bill is carefully justified and is timed.
The billhook back of the body is wide slightly and level and smooth.
This utility model adopts said structure.In use, can look at straight down with the posterior longitudinal ligament billhook and insert tough leukorrhagia along the traveling of posterior longitudinal ligament fiber, the tip is carefully justified and is timed; And be difficult for puncturing dura mater; Half-twist, with the adherence Separation between dura mater and posterior longitudinal ligament, can ligament is cross-section through lifting; And not easy damaged spinal dura mater, epidural space angular vein clump and spinal cord, each operation can cross-section 4mm ligament tissue.This is easy to operation, and a step accomplishes, and has reduced the risk of damage deep tissue greatly, has improved the safety of operation.
Description of drawings
Fig. 1 is the structural representation of this utility model.
Each position label in more than scheming: 1, billhook handle; 2, billhook head; 3, billhook buckle; 4, billhook bar; 5, blade; 6, back; 7, bill.
The specific embodiment
In order to understand technique scheme of the present invention better, below through the specific embodiment, and combine accompanying drawing, this utility model is described in further detail.
As shown in Figure 1, this utility model billhook handle 1 is provided with billhook head 2 at the front end of billhook handle; Can connect as one through billhook buckle 3 between said billhook handle and the billhook head.The billhook head can be changed as required at any time.
As shown in Figure 1, said billhook head is made up of billhook bar 4, back 6, the blade 5 of back inboard and the bill 7 of front end; Said back is wide slightly and level and smooth, bill is thin and circle, can avoid inserting posterior longitudinal ligament following time, punctures dura mater and myeloid tissue.
The long 4mm of said billhook sword, single operation can be cut off the 4mm ligament tissue.
Between the said billhook bar and the billhook back of the body rectangular (90 °), can effectively lift cross-section posterior longitudinal ligament.
During use, the patient hands billhook handle 2, and direct-view is inserted tough leukorrhagia with posterior longitudinal ligament bill 7 along the traveling of posterior longitudinal ligament fiber down; When treating that bill and back 5 place the ligament below fully, billhook handle half-twist is with the adherence Separation between dura mater and posterior longitudinal ligament; Lift gently, blade 6 is disconnected with tough buckle.This is easy to operation, and a step accomplishes, and has reduced the risk of damage deep tissue greatly, has improved the safety of operation.
This utility model does not detail part, is those skilled in the art's known technology.
Claims (4)
1. one kind is used for the combination type posterior longitudinal ligament billhook that the operation of throat road is reduced pressure, and it is made up of billhook handle, two parts of billhook head, and it is characterized in that: billhook handle and billhook head can link into an integrated entity through buckle; The billhook head is made up of back to the blade of side and the bill of front end billhook bar, the billhook back of the body, billhook; Form angle between the billhook bar and the billhook back of the body.
2. combination type posterior longitudinal ligament billhook according to claim 1 is characterized in that: billhook handle and billhook head are two parts that are separated from each other, and link into an integrated entity through buckle, can change the billhook head as required at any time.
3. combination type posterior longitudinal ligament billhook according to claim 1 is characterized in that: be 90 ° of angles between the billhook bar and the billhook back of the body.
4. combination type posterior longitudinal ligament billhook according to claim 1 is characterized in that: the long 4mm of billhook sword, bill is carefully justified and is timed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205414753U CN202505441U (en) | 2011-12-21 | 2011-12-21 | Combined type posterior longitudinal ligament hook knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205414753U CN202505441U (en) | 2011-12-21 | 2011-12-21 | Combined type posterior longitudinal ligament hook knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202505441U true CN202505441U (en) | 2012-10-31 |
Family
ID=47057956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205414753U Expired - Fee Related CN202505441U (en) | 2011-12-21 | 2011-12-21 | Combined type posterior longitudinal ligament hook knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202505441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137689A (en) * | 2020-09-28 | 2020-12-29 | 山东大学齐鲁医院 | Posterior longitudinal ligament device for anterior cervical surgery |
-
2011
- 2011-12-21 CN CN2011205414753U patent/CN202505441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137689A (en) * | 2020-09-28 | 2020-12-29 | 山东大学齐鲁医院 | Posterior longitudinal ligament device for anterior cervical surgery |
| CN112137689B (en) * | 2020-09-28 | 2022-02-01 | 山东大学齐鲁医院 | Posterior longitudinal ligament device for anterior cervical surgery |
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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: 20121031 Termination date: 20131221 |