Pericardium retraction device for positioning a beating heart
US6517563B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Apr 9, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/308
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical apparatus for suction attachment to a body tissue. The apparatus includes a tissue-engaging component defining a concave vacuum compartment. The vacuum compartment is connectable to a vacuum source. A valve selectively allows and prevents the generation of a vacuum in the vacuum compartment. The peripheral edge of the vacuum compartment is attachable by suction to the body tissue when the vacuum is generated. A valve closing arrangement automatically closes the valve upon the peripheral edge being separated from the body tissue so as to maintain vacuum generating efficiency for the other tissue-engaging components coupled to the same vacuum source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.