Stone disintegrator apparatus
US4722340A · kind A · utility
707Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1987 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Apr 8, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00017
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stone disintegrator apparatus has a probe with discharge electrodes and a power supply circuit for supplying a discharge voltage to the probe for causing discharge between the discharge electrodes. An electrode life detection circuit detects the number of use or discharge operations of the probe so as to determine the remaining life of the discharge electrodes. A discharge inhibit circuit inhibits re-use or discharge of the probe when the life detection circuit detects an end of electrode life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.