Computerized pulmonary analyzer
US3977394A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1975 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Feb 7, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0935
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A programmable digital computer receives an electrical signal from a spirometer into which a person under test breathes. The signal is representative of the volume of air expired by the person. The computer controls a matrix printer. Data may be entered into the computer via a keyboard. The computer instructs the operator as to when identification data may be entered via the keyboard. The operator indicates which test is to be conducted by actuating the keyboard; and the computer receives the data and indicates whether acquired test data is acceptable. The operator tells the test subject which breathing maneuver he must follow for a desired test. The computer stores the test results and the operator may then have the measurement test results analyzed by the computer, compared with standardized predicted values, and printed on a permanent record. The system is capable of measuring, analyzing and computing values for standard Forced Expiratory Volume, Maximal Voluntary Ventilation, Minute Ventilation and Functional Residual Capacity tests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.