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US 8,133,277 B2Granted
Medical device for fluid flow and method of forming such device
AssigneeBard Peripheral Vascular, Inc.
InventorsHans Scholz, Karen Petzold, Ulf Kruger
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AssigneeBard Peripheral Vascular, Inc.
InventorsHans Scholz, Karen Petzold, Ulf Kruger
Estimating the term…
A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
A graft configured for implantation in a human or animal body which defines a lumen for flowing a bodily fluid from an upstream end of the graft to a downstream end thereof, the graft having a luminal wall that extends between the upstream and downstream ends and defines the lumen within which the fluid flows, the luminal wall comprising a succession of protuberances spaced from each other along the length of the graft, each protuberance having a flank facing upstream and a flank facing downstream, the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the graft impinges on the upstream flank and is thereby caused to reverse its flow and flow upstream from the upstream flank to the downstream flank of an adjacent protuberance upstream, creating micro-vortices between adjacent protuberances.
An artificial heart configured for implantation in a human or animal body which defines a lumen for flowing a bodily fluid from an upstream end of the artificial heart to a downstream end thereof, the artificial heart having a luminal wall that extends between the upstream and downstream ends and defines the lumen within which the fluid flows, the luminal wall comprising a succession of protuberances spaced from each other along the length of the artificial heart, each protuberance having a flank facing upstream and a flank facing downstream, the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the artificial heart impinges on the upstream flank and is thereby caused to reverse its flow and flow upstream from the upstream flank to the downstream flank of an adjacent protuberance upstream, creating micro-vortices between adjacent protuberances.
Dependencies are inferred from the claim text.