Four blade medical retractor
US5667481A · kind A · utility
104Cited by
7References
16Claims
0Family size
Inventors
Key dates
| Filing date | Feb 1, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Feb 1, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2837
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A four blade medical retractor for holding open a body or surgical cavity. A first blade is fixedly mounted to the first leg of an L-shaped frame. A second blade is slidably mounted to the second leg of the frame and includes a spring biased pawl to control motion of the second blade relative to the first blade. A third blade is slidably mounted to the first leg and also includes a pawl to control motion of the third blade along the first leg. A carrier mounted to the second leg holds a fourth blade which is movable both along the length of the second leg and also to and from the third blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.