Dual probe with floating inner probe
US8454639B2 · kind B2 · utility
234Cited by
14References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 24, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/32007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and under said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.