Implantable vascular access device
US6319226A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Sep 20, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0211
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable vascular access device includes a housing having an inlet, an outlet, an interior conduit defined therein and a valve positioned between the inlet and the outlet. The valve is subcutaneously manipulated between an open position, in which fluid can flow between the inlet and the outlet, and a closed position in which the valve occludes the interior conduit. The device may include any combination of multiple inlets, outlets and/or interior conduits or chambers and may further include an additional cannula valve. In the preferred embodiment, the housing includes two separate interior conduits suitable for the inflow and outflow of a typical hemodialysis procedure. A method for accessing a vascular structure is provided which includes the steps of surgically implanting a device as described above, connecting one end of a cannula to the outlet of the device and another end of the cannula to a selected vascular structure, subcutaneously manipulating the valve of the device for permitting fluid communication between the inlet of the device and the selected vascular structure and introducing a needle or a needle introduced catheter through the inlet opening to access the sel…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.