Implantable valve and method
AssigneeVenarum Medical, LLC
InventorsTaylor KIRK, Andrew FILACHEK, Janet BURPEE
Life of this patent
Estimating the term…
Abstract
Implantable valve for treating venous insufficiency having a self-expanding frame encased in polymer having a distal section for blood in-flow, a bulbous center section and a proximal section for blood out-flow. Polymeric leaflets have proximal ends forming an S-shaped valve outlet, or a valve outlet which spirals toward the proximal section. The valve opens and closes in response to venous blood flow and has distal portions which are integral with the inner polymer surface of the distal end of said bulbous section. The leaflets define a predominantly biomimetic sinus region with the bulbous section. Opening of the valve induces flushing of blood from the sinus region for smooth non-traumatic blood flow through said valve.
Claims22
Implantable valve for treating venous insufficiency, comprising:
- a. an expandable scaffold having a distal section for blood in-flow, a center section and a proximal section for blood out-flow;
- b. said center section comprising an enlarged, non-circular bulbous section adjacent said distal section which tapers towards said proximal section;
- c. said scaffold being at least partially embedded in a biocompatible, thrombus-resistant polymer forming a frame, where embedded, having predominantly smooth inner and outer surfaces throughout the distal, center and proximal sections which are about even with the scaffold;
- d. at least two biocompatible, thrombus-resistant polymeric leaflets having proximal ends transverse to the enlarged bulbous section, said leaflets forming an S-shaped valve outlet in its closed configuration which opens and closes in response to venous blood flow, said leaflets having distal portions integral with said polymer forming the inner surface of the center section at the distal end of said bulbous section, said leaflets defining a biomimetic sinus region with said bulbous section;
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- e. wherein opening and closing of the valve induces predominantly biomimetic flushing of blood from the sinus region for smooth non-traumatic blood flow through said valve.
Implantable valve for treating venous insufficiency, comprising:
- a. an expandable scaffold having a distal section for blood in-flow, a center section and a proximal section for blood out-flow;
- b. said center section comprising an enlarged, non-circular and transversely symmetrical bulbous section adjacent said distal section which tapers towards said proximal section;
- c. said scaffold being at least partially embedded in a biocompatible, thrombus-resistant polymer forming a frame having smooth inner and outer surfaces throughout the distal, center and proximal sections which are about even with the scaffold without exposing same;
- d. at least two biocompatible, thrombus-resistant polymeric leaflets having proximal ends transverse to the enlarged bulbous section, said leaflets forming a valve outlet which spirals toward the proximal section and opens and closes in response to venous blood flow, said leaflets having distal portions integral with said polymer forming the inner surface of the center section at the distal end of said bulbous section, said leaflets defining a biomimetic sinus region with said bulbous section;
- and
- e. wherein opening and closing of the valve induces predominantly biomimetic flushing of blood from the sinus region for smooth non-traumatic blood flow through said valve.
Dependencies are inferred from the claim text.