CN103349589B - Optic-nerve-sheath incision knife - Google Patents
Optic-nerve-sheath incision knife Download PDFInfo
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- CN103349589B CN103349589B CN201310323735.3A CN201310323735A CN103349589B CN 103349589 B CN103349589 B CN 103349589B CN 201310323735 A CN201310323735 A CN 201310323735A CN 103349589 B CN103349589 B CN 103349589B
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Abstract
The invention relates to the field of medical instruments and particularly relates to a special optic-nerve-sheath incision knife for optic-nerve-sheath fenestration. The optic-nerve-sheath incision knife comprises a knife handle and a knife body, wherein a blocking piece is fixedly arranged at one side of the front end of the knife handle. The special optic-nerve-sheath incision knife has the advantages that since the blocking piece is fixed at one side of the front end of the knife handle, the tissue around the optic nerve can be isolated, the influence of the tissue around the optic nerve on a knife body in the incision process is avoided, so that the incision operation is carried out on the optic nerve sheath; the longer knife handle can be easy to extend into a narrow gap between the eyeball and the eyepit, so that the optic-nerve-sheath incision is accurately finished.
Description
Technical field
The present invention relates to medical instruments field, particularly a kind of for vagina nervi optici windowing special Optic-nerve-sheath incision knife.
Background technology
Because of " intracranial Sagittal sinus thrombosis; cause intracranial hypertension " patient because optic nerve receives 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 eyeball is rotated, expose vagina nervi optici, vagina nervi optici cuts a thin mouth, to allow the cerebrospinal fluid of intracranial flow out along otch, reduces intracranial pressure, at utmost alleviate the compressing of high intracranial pressure to optic nerve, save the vision of patient.In vagina nervi optici windowing, doctor needs, in the middle part of hand nerve probe elevator, to push the tissue around optic nerve aside with the head of nerve dissector, or is separated the adhesion between 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 is positioned at eyeball rear portion due to optic nerve, and 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; Simultaneously due to optic nerve sheath smooth surface, assemble a large amount of tissues around, when using common refreshing incision knife to carry out opening, be difficult to accomplish the impact not by optic nerve surrounding tissue in opening process, cause operating difficulties, procedure efficiency reduces, and also easily produces nerve injury.
Summary of the invention
The object of the invention is to the above-mentioned deficiency overcoming prior art, a kind of practical Optic-nerve-sheath incision knife is provided.
For achieving the above object, the invention provides following technical scheme:
Optic-nerve-sheath incision knife, comprise handle of a knife, cutter hub, the side of described handle of a knife front end is fixed with rounded tabs, the rounded tabs that side, described handle of a knife front end is fixed can isolate the tissue around optic nerve, avoid cutter hub impact by optic nerve surrounding tissue in opening process, so that carry out opening manipulation to vagina nervi optici; Described handle of a knife can probe into narrow eyeball and eye socket gap easily, completes vagina nervi optici opening exactly.
In above-mentioned Optic-nerve-sheath incision knife, in the middle part of described handle of a knife, be provided with the arc-shaped groove be distributed in distance.Hand-held stability can be increased, prevent incision knife landing.
In above-mentioned Optic-nerve-sheath incision knife, the length of described handle of a knife is 15 ~ 20cm.Longer handle of a knife can probe into narrow eyeball and eye socket gap easily.
Compared with prior art, beneficial effect of the present invention: the catch that side, handle of a knife front end of the present invention is fixed can isolate the tissue around optic nerve, avoids cutter hub impact by optic nerve surrounding tissue in opening process, so that carry out opening manipulation to vagina nervi optici; Longer handle of a knife, easily can probe into narrow eyeball and eye socket gap, complete vagina nervi optici opening exactly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is Fig. 1 is top view.
Fig. 3 is Fig. 1 is upward view.
Labelling in figure: 1-cutter hub, 2-handle of a knife, 3-groove, 4-catch.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, the present embodiment Optic-nerve-sheath incision knife, comprise cutter hub 1, handle of a knife 2 that length is 20cm, the arc-shaped groove 3 be distributed in distance is provided with in the middle part of described handle of a knife 2, the right side of described handle of a knife 2 front end is fixed with rounded tabs 4, rounded tabs 4 fixing on the right side of described handle of a knife front end can isolate the tissue around optic nerve, avoids cutter hub 1 impact by optic nerve surrounding tissue in opening process, so that carry out opening manipulation to vagina nervi optici; Described handle of a knife 2 can probe into narrow eyeball and eye socket gap easily, completes vagina nervi optici opening exactly.
During vagina nervi optici windowing, first expose vagina nervi optici, then with clamping forceps, vagina nervi optici is provoked, finally use the Optic-nerve-sheath incision knife of the present embodiment to the vagina nervi optici opening of provoking.Catch 4 fixing on the right side of handle of a knife 2 front end can isolate the tissue on right side, avoids cutter hub 1 impact by optic nerve surrounding tissue in opening process, is convenient to carry out opening manipulation to vagina nervi optici.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. Optic-nerve-sheath incision knife, comprise handle of a knife, cutter hub, it is characterized in that: the side of described handle of a knife front end is fixed with rounded tabs, the rounded tabs that side, described handle of a knife front end is fixed can isolate the tissue around optic nerve, avoid cutter hub impact by optic nerve surrounding tissue in opening process, so that carry out opening manipulation to vagina nervi optici; Described handle of a knife can probe into narrow eyeball and eye socket gap easily, completes vagina nervi optici opening exactly.
2. Optic-nerve-sheath incision knife according to claim 1, is characterized in that: be provided with the arc-shaped groove be distributed in distance in the middle part of described handle of a knife.
3. according to claim 1,2, Optic-nerve-sheath incision knife described in any one, it is characterized in that: the length of described handle of a knife is 15 ~ 20cm, can probe into narrow eyeball and eye socket gap easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310323735.3A CN103349589B (en) | 2013-07-30 | 2013-07-30 | Optic-nerve-sheath incision knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310323735.3A CN103349589B (en) | 2013-07-30 | 2013-07-30 | Optic-nerve-sheath incision knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103349589A CN103349589A (en) | 2013-10-16 |
| CN103349589B true CN103349589B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310323735.3A Active CN103349589B (en) | 2013-07-30 | 2013-07-30 | Optic-nerve-sheath incision knife |
Country Status (1)
| Country | Link |
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| CN (1) | CN103349589B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209091540U (en) * | 2018-02-05 | 2019-07-12 | 复旦大学附属华山医院 | Underlying nerve dissociates cutting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2405560Y (en) * | 1997-07-19 | 2000-11-15 | 甄海滨 | Nucleus pulposus extirpator |
| US7044956B2 (en) * | 2002-07-03 | 2006-05-16 | Rubicor Medical, Inc. | Methods and devices for cutting and collecting soft tissue |
| CN201029909Y (en) * | 2007-01-16 | 2008-03-05 | 宋业良 | Lumbar scalers with nerve protecting device |
| CN101662992B (en) * | 2007-02-09 | 2012-06-27 | 骨骼动力学有限公司 | Endo-surgical device and method |
| CN202277368U (en) * | 2011-10-21 | 2012-06-20 | 胡刚 | Neurosurgery dismountable scalpel |
| CN203400250U (en) * | 2013-07-30 | 2014-01-22 | 四川省医学科学院（四川省人民医院） | Vagina nervi optici cutting knife |
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2013
- 2013-07-30 CN CN201310323735.3A patent/CN103349589B/en active Active
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| Publication number | Publication date |
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| CN103349589A (en) | 2013-10-16 |
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Effective date of registration: 20211229 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 |