CN202875441U - Novel posterior longitudinal ligament scissors - Google Patents
Novel posterior longitudinal ligament scissors Download PDFInfo
- Publication number
- CN202875441U CN202875441U CN 201220565698 CN201220565698U CN202875441U CN 202875441 U CN202875441 U CN 202875441U CN 201220565698 CN201220565698 CN 201220565698 CN 201220565698 U CN201220565698 U CN 201220565698U CN 202875441 U CN202875441 U CN 202875441U
- Authority
- CN
- China
- Prior art keywords
- knife
- knife body
- cutter head
- longitudinal ligament
- posterior longitudinal
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to the technical field of medical instruments, in particular to novel posterior longitudinal ligament scissors which comprise an upper knife body and a lower knife body which are connected together through a pin shaft (1), wherein each knife body comprises a knife head (2), a knife holder (3) and a handle (4), the knife heads (2) are arranged on one ends of the knife bodies, the handles (4) are arranged at bottoms of the knife holders (3), the pin shaft (1) is located between the knife heads (2) and the knife holders (3), the knife heads (2) of the upper knife body and the lower knife body are bent to the same side, the knife heads (2) of the upper knife body and the lower knife body are connected with the knife holders (3) in an obtuse angle mode, the back side of the knife head (2) of the upper knife body is provided with a protective plate (5), and the protective plate (5) is fixedly connected to the back side of the knife head (2) of the upper knife body. Compared with the prior art, the novel posterior longitudinal ligament scissors have the advantages that the structure is novel and simple, complete removal of a posterior longitudinal ligament is achieved safely and effectively, operating procedures are simplified, safety of an operation is improved, and spinal cord injuries or leakage of cerebrospinal fluid or intracranial infection and other complications caused by cutting of dural sacs are avoided.
Description
[technical field]
This utility model relates to technical field of medical instruments, specifically a kind of novel posterior longitudinal ligament shears.
[background technology]
At present, it is the desirable Therapeutic Method for the treatment of spinal canal stenosis that posterior decompression, intervertebral bone graft merge internal fixation operation, before carrying out the operation of way of escape intervertebral bone graft, need should the zone posterior longitudinal ligament resection clean, but because dural sac is covered in the rear of posterior longitudinal ligament, and closely link to each other with posterior longitudinal ligament, and because the vulnerability of spinal cord in the dural sac, at when operation person's tractive dural sac that do not allow the operation technique and excise posterior longitudinal ligament under direct-view, thereby traditional way all is to cut with operation technique person's experience is blind.Therefore, when carrying out such operation, in time, have the dural sac incision, causes the complication such as spinal cord injury, cerebrospinal leak or intracranial infection to occur, and finally causes serious consequence, caused very large misery to the patient, brought potential life hidden danger.Therefore, dural sac and posterior longitudinal ligament can be separated in operative process if can provide a, in order to safely and effectively posterior longitudinal ligament is excised fully, will have very important significance.
[utility model content]
The purpose of this utility model is exactly will solve above-mentioned deficiency and a kind of novel posterior longitudinal ligament shears is provided, can in operative process, dural sac and posterior longitudinal ligament be separated, thereby safely and effectively posterior longitudinal ligament is excised fully, improved the safety of operation.
Design for achieving the above object a kind of novel posterior longitudinal ligament shears; comprise by the bearing pin 1 upper and lower cutter hub that links together; described cutter hub comprises cutter head 2, handle of a knife 3 and handgrip 4; described cutter head 2 is arranged on the end of cutter hub; described handgrip 4 is arranged on the bottom of handle of a knife 3; described bearing pin 1 is between cutter head 2 and handle of a knife 3; the cutter head 2 of described upper and lower cutter hub is to same lateral bend; the cutter head 2 of described upper and lower cutter hub is connected in obtuse angle with handle of a knife 3; cutter head 2 dorsal parts of described upper knife body are provided with a baffle 5, and described baffle 5 is fixedly connected on the cutter head 2 dorsal part places of upper knife body.
Described baffle 5 is the blunt type baffle of circle, and the end of the blunt type baffle of described circle is smooth curved surface.
The cutter head 2 of described upper and lower cutter hub and the angle between the handle of a knife 3 are 120 °～150 °.
The blade of described upper knife body cutter head 2 is profile of tooth blade 6.
This utility model is compared with prior art, novel structure, simply, owing to being provided with the blunt type baffle of a circle at the cutter head dorsal part place of upper knife body, by the blunt type baffle of this circle dural sac and posterior longitudinal ligament are separated, thereby realized safely and effectively posterior longitudinal ligament being excised fully, simplified operating procedure, improved the safety of operation, avoid mistake that dural sac is cut and caused spinal cord injury, the complication such as cerebrospinal leak or intracranial infection occurs, and the end of baffle is smooth curved surface, can not occur damaging the contingency of dural sac when then having guaranteed operation, further ensure patient's personal safety; In addition, because cutter head is connected in obtuse angle with handle of a knife, during use, can with the cutter head horizontal abutment on skin, just its end can be inserted into the posterior longitudinal ligament place smoothly; In addition, posterior longitudinal ligament shears described in the utility model, not only simple, convenient, practical, and also stability and the good reliability in when operation, greatly improved success rate of operation, be worthy of popularization.
[description of drawings]
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is structural representation two of the present utility model;
Fig. 3 is the left view of Fig. 2;
Among the figure: 1, bearing pin 2, cutter head 3, handle of a knife 4, handgrip 5, baffle 6, profile of tooth blade.
[specific embodiment]
Further specify below below in conjunction with accompanying drawing this utility model being done:
Such as accompanying drawing 1 to shown in the accompanying drawing 3; this utility model comprises: on being linked together by bearing pin 1; lower knife body; cutter hub comprises cutter head 2; handle of a knife 3 and handgrip 4; cutter head 2 is arranged on the end of cutter hub; handgrip 4 is arranged on the bottom of handle of a knife 3; bearing pin 1 is between cutter head 2 and handle of a knife 3; on; the cutter head 2 of lower knife body is to same lateral bend; on; the cutter head 2 of lower knife body is connected in obtuse angle with handle of a knife 3; above; it is preferred that the cutter head 2 of lower knife body and the angle between the handle of a knife 3 are 120 °～150 °; the blade of upper knife body cutter head 2 is profile of tooth blade 6; cutter head 2 dorsal parts of upper knife body are provided with a baffle 5; this baffle 5 is fixedly connected on the cutter head 2 dorsal part places of upper knife body; by this baffle dural sac and posterior longitudinal ligament are separated, thereby realized safely and effectively posterior longitudinal ligament being excised fully, simplified operating procedure; improved the safety of operation, avoided mistake that dural sac is cut and caused spinal cord injury; the complication such as cerebrospinal leak or intracranial infection occurs.
In this utility model, baffle 5 is the blunt type baffle of circle, and the end of the blunt type baffle of this circle is smooth curved surface, thereby can not occur damaging the contingency of dural sac when having guaranteed operation, has further ensured patient's personal safety; In addition, the handle of a knife end is provided with the handgrip that makes things convenient for finger grip, then so that the medical worker is more comfortable in when operation, operate more flexibly, fast, has shortened operating time.
This utility model is not subjected to the restriction of above-mentioned embodiment; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1. novel posterior longitudinal ligament shears; comprise by bearing pin (1) link together upper; lower knife body; described cutter hub comprises cutter head (2); handle of a knife (3) and handgrip (4); described cutter head (2) is arranged on the end of cutter hub; described handgrip (4) is arranged on the bottom of handle of a knife (3); described bearing pin (1) is positioned between cutter head (2) and the handle of a knife (3); it is characterized in that: on described; the cutter head of lower knife body (2) is to same lateral bend; on described; the cutter head of lower knife body (2) is connected in obtuse angle with handle of a knife (3); the cutter head of described upper knife body (2) dorsal part is provided with a baffle (5), and described baffle (5) is fixedly connected on cutter head (2) the dorsal part place of upper knife body.
2. novel posterior longitudinal ligament shears as claimed in claim 1 is characterized in that: described baffle (5) is the blunt type baffle of circle, and the end of the blunt type baffle of described circle is smooth curved surface.
3. novel posterior longitudinal ligament shears as claimed in claim 1 or 2, it is characterized in that: the angle between the cutter head of described upper and lower cutter hub (2) and the handle of a knife (3) is 120 °～150 °.
4. novel posterior longitudinal ligament shears as claimed in claim 3, it is characterized in that: the blade of described upper knife body cutter head (2) is profile of tooth blade (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565698 CN202875441U (en) | 2012-10-31 | 2012-10-31 | Novel posterior longitudinal ligament scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565698 CN202875441U (en) | 2012-10-31 | 2012-10-31 | Novel posterior longitudinal ligament scissors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202875441U true CN202875441U (en) | 2013-04-17 |
Family
ID=48066914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220565698 Expired - Fee Related CN202875441U (en) | 2012-10-31 | 2012-10-31 | Novel posterior longitudinal ligament scissors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202875441U (en) |
-
2012
- 2012-10-31 CN CN 201220565698 patent/CN202875441U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204890100U (en) | Fibula cuts bone guider | |
| CN202875441U (en) | Novel posterior longitudinal ligament scissors | |
| CN202776720U (en) | Lamellar cornea cutting scalpel | |
| CN205459848U (en) | Medical cleansing pin | |
| CN204207816U (en) | A kind of dermatome being used for the treatment of deep burn and chronic wound skin graft operation | |
| CN203369939U (en) | Minimally-invasive vertebral pedicle osteotome | |
| CN206355109U (en) | The hook-shaped nerve dissector that head is designed with groove | |
| CN207613957U (en) | A kind of novel ophthalmological scissors | |
| CN205988311U (en) | A kind of tissue scissors with teeth at one side | |
| CN213047167U (en) | Novel tendon cutting device | |
| CN101543423B (en) | Operation supporting sleeve and puncture guiding needle capable of being used by combination | |
| CN201422904Y (en) | Operation hook knife | |
| CN202505441U (en) | Combined type posterior longitudinal ligament hook knife | |
| CN204839660U (en) | Multi -functional surgery operation pincers | |
| CN202589613U (en) | Tumor scalpel | |
| CN205704301U (en) | Cut for pruning the nose preserved skin of vibrissa | |
| CN204274557U (en) | A kind of trepan for Thoracolumbar disk anterior decompression | |
| CN201870806U (en) | Ophthalmic surgical knife | |
| CN210843628U (en) | Special scissors for artificial lens | |
| CN204431294U (en) | The special eyelashes of a kind of ophthalmology are cut | |
| CN216798000U (en) | Push broach for miniature artificial crystal | |
| CN203815541U (en) | Arc bone knife for excising ossification focuses in thoracic and lumbar vertebral posterior longitudinal ligaments | |
| CN213217451U (en) | Medical surgical scissors | |
| CN211485223U (en) | Scalpel for eye surgery | |
| CN219578950U (en) | Bone taking device for tibia osteotomy block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |