Apparatus for destroying calculuses
US5054469A · kind A · utility
2Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2009/0064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for destroying calculuses with a human body which detects an expiration end period of the human body by a detector. A pulse generator generates a first drive pulse to drive destroying energy radiation in synchronism with a start point of the detected expiration end period. Succeeding the first pulse, another pulse generator generates a train of pulses at a rate as set by a pulse rate setting circuit. By utilizing the pulse train, the energy is repeatedly radiated to the location of the calculus during the detected expiration end period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.