US3918436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood pressure measuring system
Assignee: Sybron Transition Corp
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Filing: 1974-04-19
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Granted: 1975-11-11
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Expires: 1994-04-19
Abstract
Abstract A system including manometer, cuff, inflator, and stethoscope wherein the manometer has manually-operable ''''drop-off'''' pointers. Using the stethoscope, an observer operates the dropoff pointers in succession upon aurally detecting systole and diastole, respectively. The bleed of pressure from the cuff is regulated so that the cuff pressure drops according to a predetermined schedule. Manual operation of the drop-off pointers is caused to reduce the resistance to air flow from said cuff.
Inventors
- 👤 Edward Lynn Peart
- 👤 Billy Otis Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:38
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/02141; A61B5/022
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
175 words
A system for measuring blood pressure, said system having a pressurizable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring the fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer to said cuff, and said fluid resistance to said cuff; said manometer havng an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said system also having a controller means manually operable for immobilizing said indicator; said system also having means for varying said fluid resistance such as to cause the fluid pressure in said cuff to decrease; and said controller means being operatively connected to said means for varying said fluid resistance, said controller means, when manually operated to immobilize said indicator, causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount.
Claim 2
Independent Claim
175 words
A system for measuring blood pressure, said system having a pressurizable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring the fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer to said cuff, and said fluid resistance to said cuff; said manometer havng an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said system also having a controller means manually operable for immobilizing said indicator; said system also having means for varying said fluid resistance such as to cause the fluid pressure in said cuff to decrease; and said controller means being operatively connected to said means for varying said fluid resistance, said controller means, when manually operated to immobilize said indicator, causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount.
Claim 3
Dependent Claim
67 words
The system of claim 1, said manometer also having a second indicator immobilizable so as to indicate the value of said fluid pressure prevailing at the moment of immobilizing said second indicator; said controller means also being manually operable to immobilize said second indicator; said controller means, when manually operated to immobilize said second indicator, causing said means for varying said fluid resistance by a predetermined amount.
Claim 4
Independent Claim
184 words
A system for measuring blood pressure, said system having a pressurizable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer to said cuff, and said fluid resistance to said cuff; said manometer having an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said system also having a controller means manually operable for immobilizing said indicator; said system also having means for varying said fluid resistance such as to cause the fluid pressure to sAid cuff to decrease according to a predetermined schedule; and said controller means being operatively connected to said means for varying said fluid resistance, said controller means, when manually operated to immobilize said indicator, causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount in accordance with said schedule.
Claim 5
Independent Claim
184 words
A system for measuring blood pressure, said system having a pressurizable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer to said cuff, and said fluid resistance to said cuff; said manometer having an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said system also having a controller means manually operable for immobilizing said indicator; said system also having means for varying said fluid resistance such as to cause the fluid pressure to sAid cuff to decrease according to a predetermined schedule; and said controller means being operatively connected to said means for varying said fluid resistance, said controller means, when manually operated to immobilize said indicator, causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount in accordance with said schedule.
Claim 6
Dependent Claim
77 words
The system of claim 3, said manometer also having a second indicator immobilizable so as to indicate the value of said fluid pressure prevailing at the moment of immobilizing said second indicator; said controller means also being manually operable to immobilize said second indicator; said controller means, when manually operated to immobilize said second indicator, causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount in accordance with said schedule.
Claim 7
Independent Claim
188 words
A system for measuring blood pressure, said system having a pressurizable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring the fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer of said cuff and said fluid resistance to said cuff; said manometer having an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said system also having a controller means manually operable for immobilizing said indicator; said fluid resistance being in the form of a plurality of fluid resistors of fixed values, there being bleed-operating means connected to said resistors, said bleed-operating means being connected to said controller means for operation by said controller means, when said controller means is operated to immobilize said indicator, for connecting certain of said fluid resistors to said cuff for bleeding said fluid therethrough and out of said cuff at the same time said indicator is immobilized.
Claim 8
Independent Claim
188 words
A system for measuring blood pressure, said system having a pressurizable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring the fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer of said cuff and said fluid resistance to said cuff; said manometer having an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said system also having a controller means manually operable for immobilizing said indicator; said fluid resistance being in the form of a plurality of fluid resistors of fixed values, there being bleed-operating means connected to said resistors, said bleed-operating means being connected to said controller means for operation by said controller means, when said controller means is operated to immobilize said indicator, for connecting certain of said fluid resistors to said cuff for bleeding said fluid therethrough and out of said cuff at the same time said indicator is immobilized.
Claim 9
Dependent Claim
67 words
The system of claim 5, said manometer also having a second indicator immobilizable so as to indicate the value of said fluid pressure prevailing at the moment of immobilizing said second indicator; said controller means also being manually operable to immobilize said second indicator and, when so operated, to connect other of said resistors to said cuff for bleeding said fluid therethrough and out of said cuff.
Claim 10
Independent Claim
208 words
A system for measuring blood pressure, said system having a pressuriziable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring the fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer to said cuff, said fluid resistance to said cuff; said manometer having an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said manometer having motive means for moving said indicator in response to said fluid pressure for indicating said fluid pressure; said manometer having immobilizing means actuable for immobilizing said indicator; said system also having a controller means manually operable for actuating said immobilizing means; said system also having means for varying said fluid resistance such as to cause the fluid pressure in said cuff to decrease; and said controller means being operatively connected to said means for varying said fluid resistance, and said controller means, when manually operated for actuating said immobilizing means, also causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount.
Claim 11
Independent Claim
208 words
A system for measuring blood pressure, said system having a pressuriziable cuff for variably obstructing an artery, an inflator for pressurizing said cuff with fluid, a manometer for measuring the fluid pressure in said cuff, and bleed means having fluid resistance for bleeding said fluid out of said cuff via said fluid resistance, said system having means for connecting said inflator to said cuff, said manometer to said cuff, said fluid resistance to said cuff; said manometer having an indicator immobilizable for indicating the value of said fluid pressure prevailing at the moment of immobilizing said indicator; said manometer having motive means for moving said indicator in response to said fluid pressure for indicating said fluid pressure; said manometer having immobilizing means actuable for immobilizing said indicator; said system also having a controller means manually operable for actuating said immobilizing means; said system also having means for varying said fluid resistance such as to cause the fluid pressure in said cuff to decrease; and said controller means being operatively connected to said means for varying said fluid resistance, and said controller means, when manually operated for actuating said immobilizing means, also causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount.
Claim 12
Dependent Claim
108 words
The system of claim 7, said manometer also having a secOnd indicator immobilizable so as to indicate the value of said fluid pressure prevailing at the moment of immobilizing said second indicator; said manometer having motive means for moving said second indicator in response to said fluid pressure for indicating said fluid pressure; said manometer having second immobilizing means actuable for immobilizing said second indicator; said controller means also being manually operable for actuating said second immobilizing means; said controller means, when manually operated for actuating said second immobilizing means, also causing said means for varying said fluid resistance to vary said fluid resistance by a predetermined amount.
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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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |