US4657532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intra-peritoneal perfusion of oxygenated fluorocarbon
Assignee: Thomas Jefferson University
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Filing: 1985-07-19
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Granted: 1987-04-14
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Expires: 2005-07-19
Abstract
Abstract A novel method of oxygenating the tissue of a living mammal is disclosed comprising the steps of providing an oxygenated fluorocarbon-containing liquid; injecting that oxygenated liquid into the peritoneal cavity of said mammal; and withdrawing said fluorocarbon liquid from said cavity, said injecting and withdrawing be conducted at a rate sufficient to oxygenate said tissue. Accordingly, a novel "artificial lung" is disclosed which is useful to selectively oxygenate the body of a mammal, as reflected by increased arterial blood gas (pO 2 ) in said mammal.
Inventors
- 👤 Jewell L. Osterholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:46
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0026; A61K31/00; A61K31/33; A61K31/335; A61K31/34; A61M; A61M1/00; A61M1/14; A61M1/32; A61P; A61P7/00; A61P7/08; A61M1/28; A61M1/287; A61M2202/00; A61M2202/04; A61M2202/0468; A61M2202/0476
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
81 words
A method of oxygenating the tissue of a living mammal, comprising the steps of: (a) providing an oxygenated fluorocarbon containing liquid; (b) injecting said oxygenated fluorocarbon liquid into the peritoneal cavity of said mammal; (c) withdrawing said liquid from said cavity; said injecting and withdrawing being conducted at a rate sufficient to oxygenate at least a portion of the tissue of said mammal, said rate being at least about 20 milliliters per minutes per kilogram of body weight of said mammal.
Claim 2
Independent Claim
81 words
A method of oxygenating the tissue of a living mammal, comprising the steps of: (a) providing an oxygenated fluorocarbon containing liquid; (b) injecting said oxygenated fluorocarbon liquid into the peritoneal cavity of said mammal; (c) withdrawing said liquid from said cavity; said injecting and withdrawing being conducted at a rate sufficient to oxygenate at least a portion of the tissue of said mammal, said rate being at least about 20 milliliters per minutes per kilogram of body weight of said mammal.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein said rate is about 25 milliliters per minute per kilogram of body weight of said mammal.
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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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |