Method and apparatus for tissue dissection
US6203559A · kind A · utility
112Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2000 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Jan 27, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320044
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Mechanical retractors for bluntly dissecting tissue at a remote surgical site include extendable elements disposed near the distal end of an elongated cannula body with direct mechanical linkage to manual actuators disposed near the proximal end of the cannula body. Individual extendable elements may be arranged in symmetrical or asymmetrical configurations about the central axis of the body for selectively bluntly dissecting bodily tissue in patterns of greater diversity than merely omni-radially as provided by conventional pressurizable balloon tip cannulas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.