Medical retrieval device with independent rotational means
US8021372B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2002 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Jul 5, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2929
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical retrieval device used to remove objects such as urinary and biliary calculi from the body comprising a handle assembly with an independent rotational means, a sheath, and an object entrapping assembly. In preferred embodiments, the handle assembly comprises a longitudinally stationary base portion and a thumb slide actuation means. The longitudinally stationary portion comprises a handle base and a rotating means. In a preferred embodiment, a portion of the thumb slide actuation means is located between the distal and proximal ends of the handle base portion during the complete actuation cycle. Actuation of the thumb slide relative to the handle base causes the object entrapping assembly to be actuated between the open and closed positions. Rotation of the rotating means relative to the handle base causes precise rotation of the object entrapping assembly. The thumb slide actuation means and rotating means are separate and independent of each other, preventing inadvertent adjustment of the degree of actuation during rotation and preventing inadvertent adjustment of rotational position during actuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.