Rigid elastic bent tool for laparoscopic surgery
US9974562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jun 7, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0817
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical tool and method of use during laparascopic surgery, the tool including a shaft having a distal region with an elastic modulus E. Distal and proximal regions of the shaft have outer diameters D1 and D2 respectively, with D2>D1. The distal region has a bend and terminates in a working feature having a distal end. The distal region has a length L1 measured in a direction parallel to the shaft axis in the proximal region, and has an offset doff relative to the proximal region where doff>D2. The elastic modulus E and the length of L1 are selected so that the working feature is insertable through an access device yet the distal region does not deflect noticeably when a force of 10 N is applied perpendicular to the distal end of the working feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.