Patent US4699152A successfully refreshed from Google Patents.
US4699152A
Expired / Lapsed
US
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Techniques for obtaining information associated with an individual's blood pressure including specifically a stat mode technique
Assignee: Baxter International Inc
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Filing: 1986-11-13
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Granted: 1987-10-13
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Expires: 2006-11-13
Abstract
Abstract Techniques for determining different parameters associated with an individual's blood pressure in a non-invasive manner are disclosed herein. These techniques include (1) generating a blood pressure waveform corresponding to the individual's actual waveform, whereby the mean pressure of the individual can be readily calculated, (2) generating a transformation curve unique to the patient from his diastolic and systolic pressures and his cuff pulses (3) successively monitoring certain parameters of the patient's blood pressure including his systolic and diastolic pressures over closely spaced intervals of time without having to subject the patient to cuff pressures much greater than his diastolic pressure, other than initially or not at all utilizing what is referred to as a stat mode, and (4) measuring a patient's diastolic and systolic blood pressures at any given instance without ever having to subject the patient to cuff pressures much greater than his diastolic pressure.
Inventors
- 👤 William T. Link
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:27
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/02108; A61B5/02116; A61B5/72; A61B5/7235; A61B5/7239
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
A non-invasive method of approximating a specific parameter associated with the actual blood pressure pulse in a particular artery of a given mammal, which specific parameter is the blood pressure constant K, said method comprising the steps of: (a) by non-invasive means, determining the diastolic and systolic pressure points D and S, respectively, of said actual blood pressure pulse; (b) by non-invasive means, providing a waveform which approximates said actual pulse; (c) finding the means value M of said waveform; and (d) determining the blood pressure constant (K) of said mammal directly from said diastolic and systolic pressure points and said mean values by solving the equation ##EQU4##
Claim 2
Dependent Claim
108 words
A non-invasive method of approximating a specific parameter associated with the actual blood pressure pulse in a particular artery of a given mammal, which specific parameter is the blood pressure constant K, said method comprising the steps of: (a) by non-invasive means, determining the diastolic and systolic pressure points D and S, respectively, of said actual blood pressure pulse; (b) by non-invasive means, providing a waveform which approximates said actual pulse; (c) finding the means value M of said waveform; and (d) determining the blood pressure constant (K) of said mammal directly from said diastolic and systolic pressure points and said mean values by solving the equation ##EQU4##
Claim 3
Dependent Claim
73 words
A non-invasive method of approximating the mean value M associated with the actual blood pressure pulse in a particular artery of a given mammal, said method comprising the steps of: (a) providing a waveform which approximates said actual pulse; and (b) integrating said waveform and solving for the equation ##EQU5## where M is said mean value, T is the duration in time of said waveform and P is the waveforms' amplitude in pressure.
Claim 4
Dependent Claim
73 words
A non-invasive method of approximating the mean value M associated with the actual blood pressure pulse in a particular artery of a given mammal, said method comprising the steps of: (a) providing a waveform which approximates said actual pulse; and (b) integrating said waveform and solving for the equation ##EQU5## where M is said mean value, T is the duration in time of said waveform and P is the waveforms' amplitude in pressure.
Claim 5
Dependent Claim
105 words
A non-invasive apparatus for approximating a specific parameter associated with the actual blood pulse in a particular artery of a given mammal, which specific parameter is the blood pressure constant K, said apparatus comprising: (a) non-invasive means for determining the diastolic and systolic pressure points D and S, respectively, of said actual blood pressure pulse; (b) non-invasive means for providing a waveform which approximates said actual pulse; (c) means for finding the mean value M of said waveform; and (d) determining the blood pressure constant of said mammal directly from said diastolic and systolic pressure points and said mean value by solving the equation ##EQU6##
Claim 6
Dependent Claim
105 words
A non-invasive apparatus for approximating a specific parameter associated with the actual blood pulse in a particular artery of a given mammal, which specific parameter is the blood pressure constant K, said apparatus comprising: (a) non-invasive means for determining the diastolic and systolic pressure points D and S, respectively, of said actual blood pressure pulse; (b) non-invasive means for providing a waveform which approximates said actual pulse; (c) means for finding the mean value M of said waveform; and (d) determining the blood pressure constant of said mammal directly from said diastolic and systolic pressure points and said mean value by solving the equation ##EQU6##
Claim 7
Dependent Claim
88 words
A non-invasive apparatus for approximating a specific parameter associated with the actual blood pressure pulse in a particular artery of a given mammal, which parameter is the mean value M, said apparatus comprising: (a) non-invasive means for providing a waveform which approximetes said actual pulse; (b) means for determining the mean value under said waveform by integrating said waveform and solving for the equation ##EQU7## where M is said mean value, T is the duration in time of the waveform and P is the waveforms' amplitude in pressure.
Claim 8
Dependent Claim
88 words
A non-invasive apparatus for approximating a specific parameter associated with the actual blood pressure pulse in a particular artery of a given mammal, which parameter is the mean value M, said apparatus comprising: (a) non-invasive means for providing a waveform which approximetes said actual pulse; (b) means for determining the mean value under said waveform by integrating said waveform and solving for the equation ##EQU7## where M is said mean value, T is the duration in time of the waveform and P is the waveforms' amplitude in pressure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |