Expandable surgical devices and methods for making and using them
US10016206B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 19, 2014 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Mar 19, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A retrieval device for removing clots is provided that includes a shaft carrying an expandable cage. The expandable cage includes a plurality of struts, each strut including proximal and distal ends coupled to non-expandable sections of the shaft distal end and an intermediate region that expands from a collapsed configuration to an expanded configuration. The struts have radial surfaces extending in a radial direction and outer circumferential surfaces in the collapsed configuration, and the intermediate regions of the struts are configured to twist along their lengths when expanded to the expanded configuration, e.g., such that the radial surfaces become oriented substantially circumferentially and the outer surfaces become oriented substantially radially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.