Endoscopic helix tissue grasping device
US9486126B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2012 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jul 13, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2912
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscopic tissue grasper device includes a flexible tubular member, a flexible shaft extending through the tubular member, a proximal handle for moving the shaft and tubular member relative to each other, and a distal helical coil having a sharpened end for engaging tissue. The helical coil has a proximal close wound portion, a distal open wound portion, and an intermediate transition portion between the proximal and distal portions. The flexible shaft extends into the proximal and intermediate portions and is secured thereto, which prevents tissue engaged by the helical coil from becoming wedged in the transition portion and thereby facilitates release of the coil from engaged tissue. In addition, a bearing sheath is provided between the shaft and tubular member to prevent the shaft from binding during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.