High efficiency external counterpulsation apparatus and method for controlling same
US7314478B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | Jan 1, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2230/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of controlling an external counterpulsation apparatus includes selecting a patient treatment pressure; outputting a signal corresponding to the selected treatment pressure; detecting a pressure of a compressed fluid reservoir; comparing the selected treatment pressure to the compressed fluid reservoir pressure; and controlling a pressure regulator valve based on a difference between the patient treatment pressure and the compressed fluid reservoir pressure. The compressed fluid reservoir pressure may be decreased when the compressed fluid reservoir pressure is greater than a preset difference from the patient treatment pressure, particularly by venting the compressed fluid reservoir to atmosphere. The compressed fluid reservoir pressure may be necessary when the compressed fluid reservoir pressure is less than a preset difference from the patient treatment pressure, particularly by operating a compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.