Electronic stethoscope measurement system and method
US7289634B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Apr 25, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B7/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for characterizing the response of an electronic stethoscope. The sensor of the electronic stethoscope is held in contact with a test surface of a phantom. A shaker, which is coupled to a stinger rod that extends inside the phantom, is driven to produce internal vibrations in the phantom. Surface motion of the test surface of the phantom is measured using a surface accelerometer coupled to the test surface. Vibrations from the phantom are detected and an electric signal based on the detected vibrations is generated with the electronic stethoscope. A surface transfer function is calculated based on the measured surface motion and the electric signal to characterize the response of the electronic stethoscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.