Valved trocar jacket tube
US6077288A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Oct 9, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3486
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a valved trocar jacket tube, in which both ends of a first cylindrical elastic member are secured, one end of a second cylindrical elastic member is attached to one of first and second rings, which are so constructed that when they are rotated relatively in the opposite directions the opening of the first cylindrical elastic member is closed from the opening state, and a fluid container is provided at a predetermined position of the second cylindrical elastic member, which is inflated to have a ring shape by the increase of an inner pressure generated by injection of a fluid. According to this structure, it is possible to provide a valved trocar jacket tube, which can prevent leakage of an inert gas from an abdominal cavity without reducing the operativity during surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.