Pneumoseal trocar arrangement
US7338473B2 · kind B2 · utility
171Cited by
29References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jan 11, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cannula assembly for the maintenance of an operative pneumoperitoneum in a patient comprising an elongated cannula having a proximal end and a distal end. A removable valve is securely arranged in the proximal end of the cannula to provide a seal and minimize the escape of gas introduced into the patient's pneumoperitoneum when an operative instrument is passed therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.