Push-twist suture-passing laparoscopic knot tying instrument
US10433835B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0474
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This is a laparoscopic instrument for facilitating intra-corporeal tying of knots. The shafts of two small diameter laparoscopic graspers are combined within a common external sheath. One grasper has a regular scissors handle, is stationary, and acts as a recipient grasper, while the other has no handle, but is rotatable and slidable, and acts as a donor grasper. It enables the head end of a suture to be actively passed from the jaws of the donor grasper to the jaws of the adjacent recipient grasper, after passing behind and around the tail strand, thus forming a knot. The current version of this instrument introduces two additional features, one being the passive production of the rotation by the straight sliding mechanism, the other being the use of free-wheeling levers allowing rotation of the shaft of the donor grasper, without rotating the attached levers in the slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.