Medical stent with a valve and related methods of manufacturing
First Claim
Patent Images
1. A medical stent having an elastomeric valve, comprising:
- a generally tubular body formed of braided wires having a proximal end portion and a distal end portion; and
a normally closed valve made of an elastomeric material and formed integral to the distal end portion of the braided wires, the elastomeric valve having a generally convex outer surface in a normally closed position and is substantially radially symmetric about a longitudinal axis of the tubular body,wherein the elastomeric valve is sufficiently rigid so as to substantially maintain a predetermined shape,wherein the elastomeric valve is configured to open in response to a predetermined condition,wherein the elastomeric valve includes an opening when the valve is in the normally closed position, andwherein said opening is located at a distal end of the valve.
0 Assignments
0 Petitions
Accused Products
Abstract
Medical stents having valves and their methods of manufacture are disclosed. The valve may be basket-shaped and formed integral to a medical stent to prevent undesirable backflow across the valve. The valve can be formed by converting the braided wires of the stent, by providing elastomeric material onto a mold or fixture to form an elastomeric valve, or by attaching a gasket valve. The valve is normally closed but configured to allow easy opening in response to a predetermined condition.
-
Citations
45 Claims
-
1. A medical stent having an elastomeric valve, comprising:
-
a generally tubular body formed of braided wires having a proximal end portion and a distal end portion; and a normally closed valve made of an elastomeric material and formed integral to the distal end portion of the braided wires, the elastomeric valve having a generally convex outer surface in a normally closed position and is substantially radially symmetric about a longitudinal axis of the tubular body, wherein the elastomeric valve is sufficiently rigid so as to substantially maintain a predetermined shape, wherein the elastomeric valve is configured to open in response to a predetermined condition, wherein the elastomeric valve includes an opening when the valve is in the normally closed position, and wherein said opening is located at a distal end of the valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 27)
-
-
16. A medical esophageal stent having an elastomeric valve, comprising:
-
a generally tubular body having a proximal end portion and a distal end portion, the tubular body being sized and configured to be placed in an esophagus of a patient; and a normally closed valve made of an elastomeric material and formed integral to the distal end portion of the tubular body, the valve having a generally convex outer surface and is substantially radially symmetric about a longitudinal axis of the tubular body wherein the valve is configured to open in response to a predetermined condition, wherein a valved end of the valve includes an opening when the valve is in a normally closed position, and wherein the opening lacks a cover for closing the opening. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 44)
-
-
30. A medical stent having an elastometric valve, comprising:
-
a generally tubular, radially flexible body having a proximal end portion and a distal end portion; and a normally closed valve made of an elastometric material and formed integral to the distal end portion of the tubular body, the elastometric valve having a generally convex outer surface, wherein the valve is configured to open in response to a predetermined condition, wherein a valve end of the valve includes an opening when the valve is in a normally closed position, and wherein the opening lacks a cover for closing the opening. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45)
-
Specification