Stone disintegrator
US4595019A · kind A · utility
10Cited by
5References
9Claims
0Family size
Inventors
Key dates
| Filing date | May 4, 1984 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | May 4, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00026
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument for attacking calculi of a patient by hydraulic impacts formed by electrical discharges in a liquid medium surrounding the calculi by detecting if the discharge end of the lithotrite of the instrument is adjacent to tissue of the patient and detecting by measuring the conductivity of the liquid medium and determining whether the measured conductivity falls within predetermined levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.