Articulating ultrasonic surgical instrument
US6090120A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1999 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Feb 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A therapeutic ultrasound instrument is described for cutting, dissecting, or cauterizing tissue. Ultrasonic vibrations, when transmitted to organic tissue at suitable energy levels and using a suitable end-effector, may be used for the safe and effective treatment of many medical conditions. An ultrasonic surgical instrument is described which incorporates an articulating end-effector. The instrument comprises an ultrasonic signal generator, an ultrasonically actuated end-effector, and a substantially solid ultrasonic waveguide which connects the ultrasonic signal generator to the end-effector. The waveguide comprises a transmission section extending from the signal generator to a fixed node, and an articulation section extending from the fixed node to an pivoting node. The end-effector includes a waveguide segment. A handle is adapted to hold the signal generator. An outer sheath extends from the handle to the end-effector and surrounds the waveguide. An actuation trigger is rotatably positioned on the handle, and an actuation arm extends from a distal end of the actuation trigger to the pivoting node. The actuation arm is connected to the pivoting node by a lever arm which extend…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.