LVAD with t-shape and unidirectional valve
US5332403A · kind A · utility
Inventor
Key dates
| Filing date | Aug 17, 1992 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Aug 17, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/896
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A ventricular assist device comprises an artificial ventricle including a blood compartment, a pumping compartment and a pumping membrane separating the respective blood and pumping compartments. A connecting T-shaped conduit is attached to the artificial ventricle and includes an interconnected verticle leg portion and a horizontal portion with flow communication therebetween. The T-shaped conduit is coupled at a free end of the leg portion to the blood compartment of the artificial ventricle, the horizontal portion of the T-shaped conduit includes opposing open ends which are formed along an axial flow line. A unidirectional valve is positioned near one end of the horizontal portion of conduit for limiting blood flow to a single direction at the valved end, the remaining end of the horizontal portion remaining open and unobstructed and capable of receiving blood flow from an attached natural ventricle. The ventricle assist device includes a conduit for coupling the pumping chamber of the artificial ventricle to a pumping source capable of powering the artificial ventricle with periodic pumping action. A method of implantation is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.