Snare device with anti-skewing
US12274462B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2020 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Mar 25, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2217
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Snare device with anti-skewing. In one embodiment, the snare device includes a core-wire. The core-wire is made of a superelastic material and includes a proximal portion of greater cross-sectional area and a distal portion of lesser cross-sectional area. The distal portion includes a looped shape in a relaxed state. A flexible coil is mounted around the core-wire and is straight in a compressed state. The distal ends of the core-wire and the coil are coupled together. The proximal end of the core-wire is coupled to a handle of an actuator, and the proximal end of the coil is coupled to a slide of an actuator, the slide being slidably mounted on the handle. The tensile strength of the coil multiplied by the cross-sectional area of the coil is greater than the upper plateau stress of the core-wire distal portion multiplied by the cross-sectional area of the core-wire distal portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.