Patent US2221428A successfully refreshed from Google Patents.
Patent US4302664A successfully refreshed from Google Patents.
US4302664A
Expired / Lapsed
US
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Contact lens aseptor
Assignee: Atrion Medical Products Inc
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Filing: 1980-01-16
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Granted: 1981-11-24
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Expires: 2000-01-16
Abstract
Abstract A contact lens disinfector has a molded plastic casing with wells at opposite ends for receiving the respective lenses and the disinfecting solution. Caps are removably threaded onto the casing over the wells. A thermistor heater is embedded in the casing between the wells to provide a low temperature (60° C. -80° C.) heater for the solution for an extended heating cycle, thereby to inhibit deterioration of the lenses due to loss of transparency.
Inventors
- 👤 Francis E. Ryder
- 👤 Michael D. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:34
CPC Classifications
A; A61; A61L; A61L12/00; A61L12/02; A61L12/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
A contact lens aseptor, comprising: an elongate molded plastic casing having a pair of wells at opposite ends thereof for receiving a contact lens and a quantity of disinfecting solution, each well opening to an end surface of the casing and removable cover means attachable to said casing at each end thereof to overlie the associated well opening, an electrical heater means integrally molded as a component of said casing and disposed intermediate said wells for supplying heat to each said well, the plastic material forming said casing being continuous from said heater to said wells, whereby said heater means is embedded in said casing, and said heater means being of a type having a resistance that increases as a function of temperature to limit the maximum operating temperature thereof, and power supply means affixed to said heater means and extending from said heater means to the exterior of said casing for connection to a source of power.
Claim 2
Dependent Claim
158 words
A contact lens aseptor, comprising: an elongate molded plastic casing having a pair of wells at opposite ends thereof for receiving a contact lens and a quantity of disinfecting solution, each well opening to an end surface of the casing and removable cover means attachable to said casing at each end thereof to overlie the associated well opening, an electrical heater means integrally molded as a component of said casing and disposed intermediate said wells for supplying heat to each said well, the plastic material forming said casing being continuous from said heater to said wells, whereby said heater means is embedded in said casing, and said heater means being of a type having a resistance that increases as a function of temperature to limit the maximum operating temperature thereof, and power supply means affixed to said heater means and extending from said heater means to the exterior of said casing for connection to a source of power.
Claim 3
Dependent Claim
29 words
A contact lens aseptor according to claim 1 in which there are outwardly projecting fins on the casing to facilitate handling of the casing when the latter is hot.
Claim 4
Dependent Claim
27 words
A contact lens aseptor according to claim 1, further including means associated with each well respectively for providing indicia as to right or left eye contact lens.
Claim 5
Dependent Claim
26 words
A contact lens aseptor according to claim 1 in which the operating temperature of the solution in the wells is about 60° C. to 80° C.
Claim 6
Dependent Claim
19 words
A contact lens aseptor according to claim 1 or claim 4 in which said heater means comprises a thermistor.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-23 | 1985-05-25 | 1985-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-23 | 1989-05-25 | 1989-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-23 | 1993-05-25 | 1993-11-24 | $7700.00 | Window Closed / Lapsed |