CN105476744A - Anterior vitreous body excision device - Google Patents
Anterior vitreous body excision device Download PDFInfo
- Publication number
- CN105476744A CN105476744A CN201610098073.8A CN201610098073A CN105476744A CN 105476744 A CN105476744 A CN 105476744A CN 201610098073 A CN201610098073 A CN 201610098073A CN 105476744 A CN105476744 A CN 105476744A
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- CN
- China
- Prior art keywords
- cutter sweep
- chamber
- cavity
- housing
- anterior
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00754—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments for cutting or perforating the anterior lens capsule, e.g. capsulotomes
Abstract
The invention discloses an anterior vitreous body excision device. The anterior vitreous body excision device comprises an excision device shell, a perfusion drainage pipe and a double-cavity probe, wherein an external liquid connector is formed in the excision device shell; the perfusion drainage pipe is arranged in the excision device shell, and the upper end of the perfusion drainage pipe is connected with the external liquid connector; the double-cavity probe internally comprises a first cavity and a second cavity which are formed in parallel. The upper end of the double-cavity probe is fixedly connected with the excision device shell, and a perfusion opening is formed in the lower end of the double-cavity probe; the lower end of the perfusion drainage pipe is connected with the upper end of the first cavity, and the lower end of the first cavity is communicated with the perfusion opening. By means of the anterior vitreous body excision device, the anterior vitreous body protruding into the anterior chamber can be safely and efficiently excised without setting up anterior chamber perfusion through a limbus corneae incision while pressure in the anterior chamber is kept stable.
Description
Technical field
The invention belongs to technical field of medical instruments, particularly relate to the anterior vitreous cutter sweep used in a kind of operated eye.
Background technology
In opthalmic surgery, because a variety of causes causes posterior lens capsule to break or defect, the situation that vitreous body takes off into anterior chamber is comparatively common.Vitreous body takes off can affect next step Intraocular implantation into anterior chamber, hinders postoperative pupil to recover normal circular appearance, or hinders aqueous humor circulation to cause secondary glaucoma.Even more serious even may because the vitreous body tractive continued causes postcataract macular edema or detachment of retina.Therefore vitreous body takes off the vitreous excision that various method should be adopted to take off into anterior chamber into anterior chamber.
Vitreous cutter is to the device that the vitreous body in eyes cuts and absorbs in operation process.Before anterior vitreous sickle occurs, iris scissors is generally adopted to be removed by vitreous scissors clinically, but the method inefficiency, excision is not thorough, easily occurs severe complication, therefore uses limited.Anterior vitreous sickle common at present itself is not with perfusion functional, in order to keep, intra-atrial pressure power before in cutting process is stable, maintenance anterior chamber normal depth, need to set up reverse headgear by corneoscleral junction otch separately, or constantly in anterior chamber, supplement viscoelastic agent in cutting process.But this two kinds of methods or add the operation wound of eyeball, or cutting efficiency is low, the viscoelastic agent that waste is expensive.
Summary of the invention
The object of this invention is to provide a kind of anterior vitreous cutter sweep, utilize existing instrument glass-cutting to know from experience the operation wound increasing eyeball to solve, or cutting efficiency is low, the technical problem of the viscoelastic agent that waste is expensive.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of anterior vitreous cutter sweep, and it comprises:
Cutter sweep housing, described cutter sweep housing is provided with outside liquid interface;
Perfusion and drainage pipe, described perfusion and drainage pipe is arranged in described cutter sweep housing, and the upper end of perfusion and drainage pipe is connected with described outside liquid interface;
Two-chamber probe, the inside of described two-chamber probe comprises the first cavity and second cavity of parallel setting; The upper end of described two-chamber probe is fixedly connected with described cutter sweep housing, and lower end is provided with fill openings; The lower end of perfusion and drainage pipe is connected with the first cavity upper end, and the lower end of the first cavity is communicated with fill openings.
The present invention's anterior vitreous cutter sweep as above, further, described cutter sweep housing is also provided with pneumatic interface and negative port; Cutter sweep enclosure interior also comprises:
First air chamber and the second air chamber; The upper end of described first air chamber is communicated with pneumatic interface; Second air chamber lower end is provided with the side opening be in communication with the outside;
Gas-tight ring, described gas-tight ring is arranged on the first air chamber and connects negative port end position;
Hollow cutter bar, described gas-tight ring is inserted in described hollow cutter bar upper end, and the second cavity of two-chamber probe is inserted in lower end, and what the termination of the second cavity connected two-chamber probe cuts suction opening;
Piston component, described piston component is fixedly connected on described cutter bar, and piston component can move back and forth under pneumatic interface provides the synergism of normal pressure and below spring in described first air chamber;
Spring, described spring housing, on described cutter bar, is positioned at the second air chamber.
The present invention's anterior vitreous cutter sweep as above, further, the diameter of described fill openings is 0.4mm ~ 0.8mm, described in cut that to inhale the diameter of opening be 0.4mm ~ 0.8mm.
The present invention's anterior vitreous cutter sweep as above, further, described piston component comprises coupling component and air tight membrane.
The present invention's anterior vitreous cutter sweep as above, further, also comprises metal washer, and described metal washer is arranged on the second air chamber lower end.
The present invention's anterior vitreous cutter sweep as above, further, described cutter sweep housing is oval along the cross section vertical with housing axial direction, and the middle part of cutter sweep housing has the waist being convenient to grip in addition.
The present invention's anterior vitreous cutter sweep as above, further, described two-chamber probe is oval along the cross section vertical with two-chamber probe axial direction, and its material is rustless steel.
The present invention's anterior vitreous cutter sweep as above, further, the length of described cutter sweep housing is 35mm ~ 45mm, and the length of two-chamber probe length is 30mm ~ 40mm.
The invention has the beneficial effects as follows:
Utilize anterior vitreous cutter sweep of the present invention, can not need by under cut-out of limbus corneae sets up the condition of reverse headgear separately, before maintenance intra-atrial pressure power stable while, excise the anterior vitreous charged in anterior chamber safely and efficiently.
The present invention coordinates phaco common in the market to use, and specifically may be used for following ophthalmic medical:
1, Poster capsulorhexis in senile cataract operation process, row radial forearm free flap;
2, childhood inborn cataract, row Cataract, Posterior capsulotomy combine preocular vitrectomy;
3, subluxation of lens or complete dislocation enter anterior chamber, and lentectomy combines preocular vitrectomy;
4, the second stage of suspension artificial intraocular lenses plants people or intraocular lens removal, the preocular vitrectomy of row;
5, ciliary block glaucoma, row lens extraction associating radial forearm free flap;
6, when hyphema or endophthalmitis, also can be used for anterior chamber irrigation and excise blood clot or fibrinous exudate.
Accompanying drawing explanation
By detailed description done in conjunction with the following drawings, above-mentioned and/or other aspects of the present invention and advantage will become clearer and be easier to understand, and these accompanying drawings just schematically, do not limit the present invention, wherein:
Fig. 1 is the anterior vitreous cutter sweep schematic appearance of an embodiment of the present invention;
Fig. 2 is the schematic cross-section of the two-chamber probe of an embodiment of the present invention;
Fig. 3 is the anterior vitreous cutter sweep schematic cross-section of an embodiment of the present invention;
Fig. 4 is that the anterior vitreous cutter sweep of an embodiment of the present invention uses schematic diagram.
In accompanying drawing, the list of parts representated by each label is as follows:
1, cutter sweep housing, 2, two-chamber probe, the 201, first cavity, the 202, second cavity, 3, outside liquid interface, 4, perfusion and drainage pipe, 5, fill openings, 6, pneumatic interface, 7, negative port, the 8, first air chamber, the 9, second air chamber, 10, side opening, 11, suction opening is cut, 12, gas-tight ring, 13, hollow cutter bar, 14, air tight membrane, 15, coupling component, 16, spring, 17, metal washer, 18, vitreous body, 19, anterior chamber.
Detailed description of the invention
Hereinafter, the embodiment of anterior vitreous cutter sweep of the present invention is described with reference to the accompanying drawings.
The embodiment recorded at this is specific detailed description of the invention of the present invention, for illustration of design of the present invention, is all explanatory and exemplary, should not be construed as the restriction to embodiment of the present invention and the scope of the invention.Except the embodiment recorded at this, those skilled in the art can also adopt other technical scheme apparent based on the content disclosed in the application's claims and description, and these technical schemes comprise the technical scheme making any apparent substitutions and modifications adopted the embodiment recorded at this.
The accompanying drawing of this description is schematic diagram, and aid illustration design of the present invention schematically shows shape and the mutual relation thereof of each several part.Note that the structure of each parts for the ease of clearly showing the embodiment of the present invention, not according to identical scale between each accompanying drawing.Identical reference marker is for representing identical part.
The anterior vitreous cutter sweep of an embodiment of the present invention is described below in conjunction with Fig. 1, Fig. 2 and Fig. 3, and it comprises:
Cutter sweep housing 1, described cutter sweep housing is provided with outside liquid interface 3; In a kind of specific embodiment, described cutter sweep housing 1 is oval along the cross section vertical with housing axial direction, and the middle part of cutter sweep housing 1 has the waist being convenient to grip in addition.
Perfusion and drainage pipe 4, described perfusion and drainage pipe 4 is arranged in described cutter sweep housing 1, and the upper end of perfusion and drainage pipe 4 is connected with described outside liquid interface 3;
Two-chamber probe 2, the inside of described two-chamber probe 2 comprises parallel the first cavity 201 and the second cavity 202 arranged; The upper end of described two-chamber probe 2 is fixedly connected with described cutter sweep housing 1, and lower end is provided with fill openings 5; The lower end of perfusion and drainage pipe 4 is connected with the first cavity 201 upper end, and the lower end of the first cavity 201 is communicated with fill openings 5.
As shown in Figure 3, in the anterior vitreous cutter sweep of an embodiment of the present invention, described cutter sweep housing 1 is also provided with pneumatic interface 6 and negative port 7; Cutter sweep housing 1 inside also comprises:
Interconnective first air chamber 8 and the second air chamber 9 in one end; The upper end of described first air chamber 8 is communicated with pneumatic interface 6; There is the side opening 10 be in communication with the outside second air chamber 9 lower end;
Gas-tight ring 12, described gas-tight ring 12 is arranged on the first air chamber 8 and connects negative port 7 end position; As shown in Figure 3, gas-tight ring is arranged on the top of cutter sweep housing.
Hollow cutter bar 13, described gas-tight ring is inserted in described hollow cutter bar 13 upper end, and the cutting of termination connection two-chamber probe that the second cavity 202, second cavity 202 of two-chamber probe is inserted in lower end inhales opening 11; In a kind of preferred embodiment, the diameter of described fill openings 5 is 0.4mm ~ 0.8mm, described in cut that to inhale the diameter opening 11 mouthfuls be 0.4mm ~ 0.8mm, in a more preferred embodiment, the diameter of described fill openings 5 is 0.6mm, described in cut that to inhale the diameter opening 11 mouthfuls be 0.6mm.
Piston component, described piston component is fixedly connected on described cutter bar 13, and piston component moves back and forth in described first air chamber 8; In a kind of preferred embodiment, described piston component comprises coupling component 15 and air tight membrane 14.
Spring 16, described spring 16 is enclosed within described cutter bar, is positioned at the second air chamber 9.
The specific works process of the present embodiment is: the present invention connects the common phaco of existing market and uses.Its housing hand-held, is inserted two-chamber probe in anterior chamber 19 by the main otch of cataract operation and starts working (as Fig. 4 illustrates).Outside liquid interface is connected with outside intrusion pipe, and outside infusion liquid is drained to the fill openings of two-chamber probe by perfusion and drainage pipe.By adjusting the size of perfusion bottle height and outside intrusion pipe water flow switch, for the fill openings inserting the two-chamber probe in anterior chamber provides suitable flow and pressure, to keep intra-atrial pressure power before in cutting process to stablize, maintain anterior chamber's normal depth.Negative port is connected with the negative-pressure suction pipe of phaco.What the negative pressure that phaco provides by negative port was passed to two-chamber probe cuts suction opening, is sucked by sub-fraction vitreous body 18 and incarceration is cutting suction opening.Pneumatic interface is connected with the pneumatic tube of phaco.When phaco gives normal pressure by pneumatic interface, air tight membrane promotes coupling component and is moved downwardly to position b by the position a in first and stopped.Drive hollow cutter bar to move downward, its open end is moved to the position d exceeding and cut and inhale about 1mm below opening by position c, complete a vitrectomy simultaneously.Meanwhile, under the suction function of the cutting element open end of hollow, a pieces of glass body of excision is absorbed, so far completes a vitreous body and cut and be drawn through journey.While air tight membrane promotion coupling component moves downward, the spring-compressed in the second air chamber, storage of potential energy.When the pneumatic normal pressure that phaco provides is removed, spring stretches, air tight membrane and coupling component are reset to the position a in the first air chamber, the cutting element open end of hollow moves up to cut and inhales the position c that overthe openings is about 2mm simultaneously, complete reseting procedure, be drawn through the ready work of journey for vitreous body is next time cut.Said process comes and goes at a high speed and carries out, can before maintenance intra-atrial pressure power stable while, excise the vitreous body taken off in anterior chamber safely and efficiently.When air tight membrane and coupling component do high speed back and forth movement in the first air chamber, for avoiding compression second gas room air, reduce the cutting element resistance of motion of hollow and be conducive to heat radiation, the second air chamber is communicated with the external world by side opening.
State in the anterior vitreous cutter sweep of embodiment on the invention, also comprise metal washer 17, described metal washer 17 is arranged on the second air chamber 9 lower end.
In a kind of preferred embodiment, described two-chamber probe 2 is oval along the cross section vertical with two-chamber probe axial direction, and its material is rustless steel.
In a kind of preferred embodiment, the length of described cutter sweep housing 1 is 35mm ~ 45mm, and the length of two-chamber probe 2 length is 30mm ~ 40mm.In a more preferred embodiment, the length of described cutter sweep housing 1 is 40mm, and the length of two-chamber probe 2 length is 35mm.
Each technical characteristic of above-mentioned disclosure is not limited to that disclosed with combination that is further feature, other combination that those skilled in the art also can carry out between each technical characteristic according to the object of invention, is as the criterion with the object realizing the present invention.
Claims (8)
1. an anterior vitreous cutter sweep, is characterized in that, comprising:
Cutter sweep housing, described cutter sweep housing is provided with outside liquid interface;
Perfusion and drainage pipe, described perfusion and drainage pipe is arranged in described cutter sweep housing, and the upper end of perfusion and drainage pipe is connected with described outside liquid interface;
Two-chamber probe, the inside of described two-chamber probe comprises the first cavity and second cavity of parallel setting; The upper end of described two-chamber probe is fixedly connected with described cutter sweep housing, and lower end is provided with fill openings; The lower end of perfusion and drainage pipe is connected with the first cavity upper end, and the lower end of the first cavity is communicated with fill openings.
2. anterior vitreous cutter sweep according to claim 1, is characterized in that, described cutter sweep housing is also provided with pneumatic interface and negative port; Cutter sweep enclosure interior also comprises:
First air chamber and the second air chamber; The upper end of described first air chamber is communicated with pneumatic interface; Second air chamber lower end is provided with the side opening be in communication with the outside;
Gas-tight ring, described gas-tight ring is arranged on the first air chamber and connects negative port end position;
Hollow cutter bar, described gas-tight ring is inserted in described hollow cutter bar upper end, and the second cavity of two-chamber probe is inserted in lower end, and what the termination of the second cavity connected two-chamber probe cuts suction opening;
Piston component, described piston component is fixedly connected on described cutter bar, and piston component can move back and forth under pneumatic interface provides the synergism of normal pressure and below spring in described first air chamber;
Spring, described spring housing, on described cutter bar, is positioned at the second air chamber.
3. anterior vitreous cutter sweep according to claim 2, is characterized in that, the diameter of described fill openings is 0.4mm ~ 0.8mm, described in cut that to inhale the diameter of opening be 0.4mm ~ 0.8mm.
4. anterior vitreous cutter sweep according to claim 2, is characterized in that, described piston component comprises coupling component and air tight membrane.
5. the anterior vitreous cutter sweep according to any one of claim 2-4, is characterized in that, also comprise metal washer, and described metal washer is arranged on the second air chamber lower end.
6. anterior vitreous cutter sweep according to claim 1, is characterized in that, described cutter sweep housing is oval along the cross section vertical with housing axial direction, and the middle part of cutter sweep housing has the waist being convenient to grip in addition.
7. anterior vitreous cutter sweep according to claim 1, is characterized in that, described two-chamber probe is oval along the cross section vertical with two-chamber probe axial direction, and its material is rustless steel.
8. anterior vitreous cutter sweep according to claim 1, is characterized in that, the length of described cutter sweep housing is 35mm ~ 45mm, and the length of two-chamber probe length is 30mm ~ 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098073.8A CN105476744B (en) | 2016-02-23 | 2016-02-23 | A kind of anterior vitreous cutter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098073.8A CN105476744B (en) | 2016-02-23 | 2016-02-23 | A kind of anterior vitreous cutter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105476744A true CN105476744A (en) | 2016-04-13 |
| CN105476744B CN105476744B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610098073.8A Expired - Fee Related CN105476744B (en) | 2016-02-23 | 2016-02-23 | A kind of anterior vitreous cutter device |
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| Country | Link |
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| CN (1) | CN105476744B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996864A (en) * | 2017-06-19 | 2020-04-10 | 爱尔康公司 | Vitrectomy probe |
| CN113081474A (en) * | 2021-03-31 | 2021-07-09 | 武汉爱尔眼科医院有限公司 | Adjustable aqueous humor drainage device for glaucoma eyes and use method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014333A (en) * | 1975-09-22 | 1977-03-29 | Mcintyre David J | Instrument for aspirating and irrigating during ophthalmic surgery |
| US4340037A (en) * | 1980-06-27 | 1982-07-20 | Lewicky Andrew O | Method to prevent collapse of the anterior chamber utilizing a terminal with eye engaging detents |
| CN2440479Y (en) * | 2000-12-14 | 2001-08-01 | 杨勋 | Safety controller for vitreous body cutter |
| CN101083961A (en) * | 2004-12-20 | 2007-12-05 | 博士伦公司 | Surge dampening irrigation-aspiration tubing |
| CN201026268Y (en) * | 2006-08-30 | 2008-02-27 | 周克俭 | Cataract cutting head |
| CN101378703A (en) * | 2006-02-06 | 2009-03-04 | 爱尔康公司 | Microsurgical instrument |
| CN101528165A (en) * | 2006-10-31 | 2009-09-09 | 爱尔康公司 | Modular design for ophthalmic surgical probe |
| CN103260534A (en) * | 2010-12-21 | 2013-08-21 | 爱尔康研究有限公司 | Vitrectomy probe with adjustable cutter port size |
-
2016
- 2016-02-23 CN CN201610098073.8A patent/CN105476744B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014333A (en) * | 1975-09-22 | 1977-03-29 | Mcintyre David J | Instrument for aspirating and irrigating during ophthalmic surgery |
| US4340037A (en) * | 1980-06-27 | 1982-07-20 | Lewicky Andrew O | Method to prevent collapse of the anterior chamber utilizing a terminal with eye engaging detents |
| CN2440479Y (en) * | 2000-12-14 | 2001-08-01 | 杨勋 | Safety controller for vitreous body cutter |
| CN101083961A (en) * | 2004-12-20 | 2007-12-05 | 博士伦公司 | Surge dampening irrigation-aspiration tubing |
| CN101378703A (en) * | 2006-02-06 | 2009-03-04 | 爱尔康公司 | Microsurgical instrument |
| CN201026268Y (en) * | 2006-08-30 | 2008-02-27 | 周克俭 | Cataract cutting head |
| CN101528165A (en) * | 2006-10-31 | 2009-09-09 | 爱尔康公司 | Modular design for ophthalmic surgical probe |
| CN103260534A (en) * | 2010-12-21 | 2013-08-21 | 爱尔康研究有限公司 | Vitrectomy probe with adjustable cutter port size |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996864A (en) * | 2017-06-19 | 2020-04-10 | 爱尔康公司 | Vitrectomy probe |
| CN110996864B (en) * | 2017-06-19 | 2022-04-26 | 爱尔康公司 | Vitrectomy probe |
| CN113081474A (en) * | 2021-03-31 | 2021-07-09 | 武汉爱尔眼科医院有限公司 | Adjustable aqueous humor drainage device for glaucoma eyes and use method |
| CN113081474B (en) * | 2021-03-31 | 2023-03-10 | 武汉爱尔眼科医院有限公司 | Adjustable aqueous humor drainage device for glaucoma eyes and use method |
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| Publication number | Publication date |
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| CN105476744B (en) | 2017-10-31 |
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