Trileaflet Heart Valve
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United States of America Patent
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N/A
Issued Date -
May 24, 2007
app pub date -
Nov 17, 2006
filing date -
Nov 18, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A prosthetic heart valve is described that includes three leaflet members which open and close in unison with the flowing of blood through the aorta. The leaflets are made of a composite multilayer polymer material that includes a central porous material such as polyethylene terephthalate sandwiched between two other polymer layers. The two polymer layers are made up of block co-polymers that contain polyisobutylene. The composite multilayer may be formed by dip coating the porous material into a solution of the block co-polymer or by compression molding of the porous material between two layers of the block co-polymer. The composite multilayer polymer material is biocompatible and durable in bodily implant applications.
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