Patent US5099834A successfully refreshed from Google Patents.
US5099834A
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US
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Method for anesthesia
Assignee: Praxair Technology Inc
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Filing: 1991-07-16
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Granted: 1992-03-31
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Expires: 2011-07-16
Abstract
Abstract A method for anesthetizing a patient comprising providing to the patient for breathing stable xenon, oxygen and helium and a gas mixture suitable therefor.
Inventors
- 👤 Royce S. Fishman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:18
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/104; A61K; A61K33/00; A61K9/00; A61P; A61P23/00; A61M16/105; A61M16/1055; A61M16/106; A61M16/1065; A61M16/22; A61M2202/00; A61M2202/02; A61M2202/025; A61M2202/0291
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
57 words
A method for anesthetizing a patient comprising providing to the patient for inhalation by the patient a gas mixture comprising from 60 to 78.5 mole percent stable xenon, from 19.5 to 38 mole percent oxygen and from 2.5 to 20.5 mole percent helium in a sufficient amount and for a sufficient time period to anesthetize the patient.
Claim 2
Independent Claim
57 words
A method for anesthetizing a patient comprising providing to the patient for inhalation by the patient a gas mixture comprising from 60 to 78.5 mole percent stable xenon, from 19.5 to 38 mole percent oxygen and from 2.5 to 20.5 mole percent helium in a sufficient amount and for a sufficient time period to anesthetize the patient.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein the stable xenon is present in a concentration within the range of from 65 to 78.5 mole percent.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein the oxygen is present in a concentration within the range of from 20 to 24 mole percent.
Claim 5
Dependent Claim
22 words
The method of claim 1 wherein helium is present in a concentration within the range of from 7.5 to 15 mole percent.
Claim 6
Dependent Claim
31 words
The method of claim 1 preceded by providing to the patient for inhalation gas mixture comprising from 19.5 to 90 mole percent oxygen and from 10 to 80.5 mole percent helium.
Claim 7
Dependent Claim
21 words
The method of claim 1 wherein the gas mixture is provided to the patient as a mixture taken from a cylinder.
Claim 8
Dependent Claim
32 words
The method of claim 1 wherein the gas mixture is provided to the patient as a gas mixture made up at the anesthetizing site with components taken from a plurality of cylinders.
Claim 9
Dependent Claim
14 words
The method of claim 1 wherein the patient is a woman of childbearing age.
Claim 10
Independent Claim
82 words
A method of anesthetizing a patient, comprising providing to the patient for inhalation by the patient a first gas mixture comprising from 19.5 to 90 mole percent oxygen and from 10 to 80.5 mole percent helium and thereafter providing to the patient for inhalation by the patient a second gas mixture comprising from 19.5 to 40 mole percent oxygen and from 60 to 80.5 mole percent stable xenon in a sufficient amount and for a sufficient time period to anesthetize the patient.
Claim 11
Independent Claim
82 words
A method of anesthetizing a patient, comprising providing to the patient for inhalation by the patient a first gas mixture comprising from 19.5 to 90 mole percent oxygen and from 10 to 80.5 mole percent helium and thereafter providing to the patient for inhalation by the patient a second gas mixture comprising from 19.5 to 40 mole percent oxygen and from 60 to 80.5 mole percent stable xenon in a sufficient amount and for a sufficient time period to anesthetize the patient.
Claim 12
Dependent Claim
25 words
The method of claim 9 wherein the oxygen concentration in the first gas mixture is within the range of from 20 to 40 mole percent.
Claim 13
Dependent Claim
25 words
The method of claim 9 wherein the helium concentration in the first gas mixture is within the range of from 60 to 80 mole percent.
Claim 14
Dependent Claim
25 words
The method of claim 9 wherein the oxygen concentration is the second gas mixture is within the range of from 20 to 40 mole percent.
Claim 15
Dependent Claim
25 words
The method of claim 9 wherein the xenon concentration in the second gas mixture is within the range of from 60 to 80 mole percent.
Claim 16
Dependent Claim
14 words
The method of claim 9 wherein the patient is a woman of childbearing age.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |