Fluid pressure-actuated medical device
US8012100B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2002 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2912
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method are described for actuating a minimally invasive medical device using fluid pressure. The invention involves a medical device that includes a fluid source, such as a compressible bladder that may apply positive fluid pressure into a sheath to controllably deploy an end-effector from a distal end of the sheath. In some embodiments, the fluid source may apply negative fluid pressure into the sheath to controllably retract the end-effector into the distal end of the sheath. Typical end-effectors for use with the medical device of the invention include biopsy devices and retrieval devices, including basket-type retrieval devices and grasper retrieval devices. Generally, the fluid that is used to actuate the device may be a liquid or a gas, including air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.