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US 2019/0167945 A1Published application
Permeable structural interface for the construction of thin-walled balloon catheters
AssigneeCognition Medical Corp
InventorAlexis S. TURJMAN
Life of this patent
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Abstract
The present invention relates to the construction of thin-walled balloon catheters where navigability, low cross-sectional profile, and low inflation and deflation times are desired. Structural reinforcement of inflation lumen utilizes a soft, flexible, permeable material to fill the fluid channel to maintain patency of the lumen.
Claims30
A catheter configured to maintain patency of a fluid lumen, comprising:
- a catheter body having at least one fluid lumen defined therethrough;
- a structural interface disposed within the at least one fluid lumen, wherein the structural interface is configured to be permeable to fluids and further has a structural integrity which is sufficient so as to inhibit contact between walls of the fluid lumen such that patency of the fluid lumen is maintained.
A catheter configured to maintain patency of a fluid lumen, comprising:
- a catheter body having a primary lumen and a secondary lumen coaxially aligned about the primary lumen and forming a fluid lumen therebetween;
- an array of micro-pillars disposed within the fluid lumen at a predetermined density and configuration and extending between an outer wall of the primary lumen and an inner wall of the secondary lumen,
- wherein the array of micro-pillars is configured to be permeable to fluids and further has a structural integrity which is sufficient so as to inhibit contact between walls of the fluid lumen such that patency of the fluid lumen is maintained.
A method of maintaining lumen patency, comprising:
- providing a catheter body having a primary lumen and a secondary lumen coaxially aligned about the primary lumen and forming a fluid lumen therebetween;
- and
- forming an array of micro-pillars disposed within the fluid lumen at a predetermined density and configuration and extending between an outer wall of the primary lumen and an inner wall of the secondary lumen,
- wherein the array of micro-pillars is configured to be permeable to fluids and further has a structural integrity which is sufficient so as to inhibit contact between walls of the fluid lumen such that patency of the fluid lumen is maintained.
1 more element
Dependencies are inferred from the claim text.