Knot tying method and apparatus
US5549618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1995 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Feb 21, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2933
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for placing and tying a knot such as laparoscopy knot. A knot pusher assembly including an outer tube and an inner tube are positioned, and a plunger assembly is plunger through the knot pusher assembly. The plunger assembly includes a knot carrier having an at least partially formed knot with a free end. The free end is placed around the object to be tied and grasped with a clamp. The knot is released from the knot carrier and the free end is pulled back through the partial knot to complete and tighten the knot. The knot is tightened and placed using the knot pusher assembly, and the free end is cut by placing it into aligned slots on the outer tube and inner tube, and rotating the inner tube in relation to the outer tube to unalign the slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.