US4331130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing device to the cornea to prevent anterior chamber prolapse
Assignee: PETKUS RAYMOND LOPEZ OSVALDO AND LEWICKY ANDREW O
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Filing: 1980-06-27
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Granted: 1982-05-25
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Expires: 2000-06-27
Abstract
Abstract An apparatus and method to prevent collapse of the anterior chamber of the eye during ophthalmic surgical procedures. The apparatus has an infusion terminal with external threads or detents which snap fit into interlocking engagement with the eye without the use of sutures. One or more pumps are pneumatically and hydraulically connected to the infusion terminal via a series of tubes to selectively inject air, saline solution and other liquids into the anterior chamber of the eye during the surgical procedure. The apparatus can be remotely operated by the surgeon with a foot pedal to minimize the amount of surgical assistance needed during the procedure. The infusion terminal can also be Y-shaped for attachment to separate air and liquid containing tubes or can have an annular abutment flange to limit the extent to which the infusion terminal can enter the eye.
Inventors
- 👤 Andrew O. Lewicky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:22
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00736
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
An opthalmic apparatus for substantially preventing collapse of the anterior chamber of an eye during anterior segment surgery and for substantially maintaining the globe of the eye during pars plana lensectomies and vitrectomies in posterior segment surgery, comprising: pneumatic pump means for pumping air into an eye, liquid pump means for pumping saline solution and other liquids into said eye, and eye-engaging and securing infusion terminal means for insertion into the corona of said eye during anterior segment surgery and into the sclera of said eye during pars plana lensectomies and vitrectomies, and fluid-flow connection means for simultaneous connecting of said pneumatic and liquid pump means to said eye-engaging infusion terminal.
Claim 2
Dependent Claim
111 words
An opthalmic apparatus for substantially preventing collapse of the anterior chamber of an eye during anterior segment surgery and for substantially maintaining the globe of the eye during pars plana lensectomies and vitrectomies in posterior segment surgery, comprising: pneumatic pump means for pumping air into an eye, liquid pump means for pumping saline solution and other liquids into said eye, and eye-engaging and securing infusion terminal means for insertion into the corona of said eye during anterior segment surgery and into the sclera of said eye during pars plana lensectomies and vitrectomies, and fluid-flow connection means for simultaneous connecting of said pneumatic and liquid pump means to said eye-engaging infusion terminal.
Claim 3
Dependent Claim
61 words
An apparatus in accordance with claim 1 wherein said fluid-flow connection means includes first tube means connected to said pneumatic pump means and second tube means connected to said liquid pump means, and said eye-engaging infusion terminal includes a Y-shaped terminal having a first inlet connected to said first tube means and a second inlet connected to said second tube means.
Claim 4
Dependent Claim
59 words
An apparatus in accordance with claim 1 wherein said fluid-flow connection means includes first tube means connected to said pneumatic pump means, second tube means connected to said liquid pump means, third tube means connected to said eye-engaging terminal and tri-tube connection means connecting said third tube means to said first tube means and to said second tube means.
Claim 5
Independent Claim
114 words
An apparatus for substantially preventing collapse of the anterior chamber of an eye during ophthalmic surgical procedures, comprising: pneumatic pump means for pumping air into the anterior chamber of an eye; liquid pump means for pumping saline solution and other liquids into the anterior chamber of the eye; an eye-engaging infusion terminal for entering into the cornea of said eye and communicating with said anterior chamber, said eye-engaging infusion terminal having a shank and cornea-engaging connection means extending outward of said shank for connecting said infusion terminal to the cornea of said eye; and fluid-flow connection means for operatively connecting said pneumatic pump means and said liquid pump means to said eye-engaging infusion terminal.
Claim 6
Independent Claim
114 words
An apparatus for substantially preventing collapse of the anterior chamber of an eye during ophthalmic surgical procedures, comprising: pneumatic pump means for pumping air into the anterior chamber of an eye; liquid pump means for pumping saline solution and other liquids into the anterior chamber of the eye; an eye-engaging infusion terminal for entering into the cornea of said eye and communicating with said anterior chamber, said eye-engaging infusion terminal having a shank and cornea-engaging connection means extending outward of said shank for connecting said infusion terminal to the cornea of said eye; and fluid-flow connection means for operatively connecting said pneumatic pump means and said liquid pump means to said eye-engaging infusion terminal.
Claim 7
Dependent Claim
30 words
An apparatus for substantially preventing collapse of the anterior chamber of the eye during ophthalmic surgical procedures in accordance with claim 4 wherein said cornea-engaging connection means includes external threads.
Claim 8
Dependent Claim
33 words
An apparatus for substantially preventing collapse of the anterior chamber of the eye during ophthalmic surgical procedures in accordance with claim 4 wherein said cornea-engaging connection means includes at least one annular detent.
Claim 9
Dependent Claim
76 words
An apparatus for substantially preventing collapse of the anterior chamber of the eye during ophthalmic surgical procedures in accordance with claim 4 wherein said fluid-flow connection means includes first tube means connected to said pneumatic pump means and second tube means connected to said liquid pump means, and said eye-engaging infusion terminal includes a Y-shaped terminal having a first inlet connected to said first tube means and a second inlet connected to said second tube means.
Claim 10
Dependent Claim
74 words
An apparatus for substantially preventing collapse of the anterior chamber of the eye during ophthalmic surgical procedures in accordance with claim 4 wherein said fluid-flow connection means includes first tube means connected to said pneumatic pump means, second tube means connected to said liquid pump means, third tube means connected to said eye-engaging terminal and tri-tube connection means connecting said third tube means to said first tube means and to said second tube means.
Claim 11
Dependent Claim
45 words
An apparatus for substantially preventing collapse of the anterior chamber of the eye during ophthalmic surgical procedures in accordance with claim 4 further including first valve means operatively associated with said pneumatic pump means and second valve means operatively associated with said liquid pump means.
Claim 12
Dependent Claim
40 words
An apparatus for substantially preventing collapse of the anterior chamber of the eye during ophthalmic surgical procedures in accordance with claim 4 further including foot pedal actuating means for selectively actuating said pneumatic pump means and said liquid pump means.
References Cited (Backward Citations)
US1688795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |