CN203400250U - Vagina nervi optici cutting knife - Google Patents
Vagina nervi optici cutting knife Download PDFInfo
- Publication number
- CN203400250U CN203400250U CN201320458238.XU CN201320458238U CN203400250U CN 203400250 U CN203400250 U CN 203400250U CN 201320458238 U CN201320458238 U CN 201320458238U CN 203400250 U CN203400250 U CN 203400250U
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- China
- Prior art keywords
- knife
- nervi optici
- vagina nervi
- vagina
- optici
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Abstract
The utility model relates to the field of medical apparatuses and instruments, in particular to a vagina nervi optici cutting knife which is specially manufactured for being used for vagina nervi optici windowing operations. The vagina nervi optici cutting knife comprises a knife handle and a knife body, and a separating sheet is fixed on one side of the front end of the knife handle. The separating sheet fixed on one side of the front end of the knife handle can separate the tissues around the optic nerves, influences of the tissues around the optic nerves in the cutting process on the knife body are avoided, and the cutting operation on the vagina nervi optici can be conveniently carried out. The long knife handle can be easily inserted in a narrow gap between the eyeball and the eye socket, and the vagina nervi optici cutting can be accurately finished.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of for vagina nervi optici windowing special vagina nervi optici incision knife.
Background technology
Because " intracranial Sagittal sinus thrombosis; cause intracranial hypertension " patient is because optic nerve is received compressing, cause eye imaging fuzzy, vision declines gradually, also be attended by headache, feeling of fullness in the head, tinnitus, successfully start clinically at present---vagina nervi optici windowing, has good therapeutic effect to this ophthalmic diseases.Vagina nervi optici windowing is passed through under the microscope, eye muscle is cut off, then outwards rotate eyeball, expose vagina nervi optici, on vagina nervi optici, cut one thin mouthful, to allow the cerebrospinal fluid of intracranial flow out along otch, reduce intracranial pressure, at utmost alleviate the compressing of high intracranial pressure to optic nerve, save patient's vision.In vagina nervi optici windowing, doctor needs hand nerve probe elevator middle part, with the head of nerve dissector, pushes the tissue around optic nerve aside, or the adhesion between separated optic nerve and soft tissue, and then with other instrument to vagina nervi optici opening.
Current clinical operation generally adopts nerve to cut or neurotome carries out opening to nerve, but because optic nerve is positioned at eyeball rear portion, between eyeball and orbit wall, gap is very narrow, and the nerve that structure is comparatively complicated is cut and is difficult to touch optic nerve; Due to optic nerve sheath smooth surface, assemble a large amount of tissues around, when using common refreshing incision knife to carry out opening simultaneously, be difficult to accomplish not to be subject to the impact of optic nerve surrounding tissue in opening process, cause operating difficulties, operation Efficiency Decreasing, also easily produces nerve injury.
Utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, and a kind of practical vagina nervi optici incision knife is provided.
For achieving the above object, this utility model provides following technical scheme:
An incision knife, comprises handle of a knife, cutter hub, and a side of described handle of a knife front end is fixed with catch.
In above-mentioned vagina nervi optici incision knife, described catch is circular.
In above-mentioned vagina nervi optici incision knife, described handle of a knife middle part is provided with the arc-shaped groove being distributed in distance.Can increase hand-held stability, prevent incision knife landing.
In above-mentioned vagina nervi optici incision knife, the length of described handle of a knife is 15～20cm.Longer handle of a knife can probe into relatively easily the incision of eyeball rear and hold vagina nervi optici.
compared with prior art, the beneficial effects of the utility model:the fixing catch of this utility model handle of a knife front end one side can be isolated optic nerve tissue around, avoids cutter hub in opening process, to be subject to the impact of optic nerve surrounding tissue, so that vagina nervi optici is carried out to opening operation; Longer handle of a knife, can easily probe into narrow eyeball and eye socket gap, completes exactly vagina nervi optici opening.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that Fig. 1 is top view.
Fig. 3 is that Fig. 1 is upward view.
Labelling in figure: 1-cutter hub, 2-handle of a knife, 3-groove, 4-rounded tabs.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, this utility model is further described.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, and be not used in restriction this utility model.
As shown in Figure 1, the present embodiment vagina nervi optici incision knife, comprises the handle of a knife 2 that cutter hub 1, length are 20cm, and described handle of a knife 2 middle parts are provided with the arc-shaped groove 3 being distributed in distance, and the right side of described handle of a knife 2 front ends is fixed with rounded tabs 4.
During vagina nervi optici windowing, first expose vagina nervi optici, then with clamping forceps, vagina nervi optici is provoked, finally use the vagina nervi optici incision knife of the present embodiment to the vagina nervi optici opening of provoking.The tissue that the fixing catch 4 in handle of a knife 2 front end right sides can be isolated right side, avoids cutter hub 1 in opening process, to be subject to the impact of optic nerve surrounding tissue, is convenient to vagina nervi optici to carry out opening operation.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a vagina nervi optici incision knife, comprises handle of a knife, cutter hub, it is characterized in that: a side of described handle of a knife front end is fixed with catch.
2. vagina nervi optici incision knife according to claim 1, is characterized in that: described catch is for circular.
3. vagina nervi optici incision knife according to claim 1, is characterized in that: described handle of a knife middle part is provided with the arc-shaped groove being distributed in distance.
4. according to the vagina nervi optici incision knife described in claim 1,2,3 any one, it is characterized in that: the length of described handle of a knife is 15～20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458238.XU CN203400250U (en) | 2013-07-30 | 2013-07-30 | Vagina nervi optici cutting knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458238.XU CN203400250U (en) | 2013-07-30 | 2013-07-30 | Vagina nervi optici cutting knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203400250U true CN203400250U (en) | 2014-01-22 |
Family
ID=49936195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320458238.XU Expired - Lifetime CN203400250U (en) | 2013-07-30 | 2013-07-30 | Vagina nervi optici cutting knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203400250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349589A (en) * | 2013-07-30 | 2013-10-16 | 四川省医学科学院（四川省人民医院） | Optic-nerve-sheath incision knife |
-
2013
- 2013-07-30 CN CN201320458238.XU patent/CN203400250U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349589A (en) * | 2013-07-30 | 2013-10-16 | 四川省医学科学院（四川省人民医院） | Optic-nerve-sheath incision knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220114 Address after: 200136 No. 565, jiajiaqiao Road, Pudong New Area, Shanghai Patentee after: SHANGHAI MEDICAL SUTURE NEEDLE FACTORY Co.,Ltd. Address before: 610072, No. two, section 32, West Ring Road, Qingyang District, Sichuan, Chengdu Patentee before: SICHUAN ACADEMY OF MEDICAL SCIENCES & SICHUAN PROVINCIAL PEOPLE'S Hospital |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
|
| CX01 | Expiry of patent term |