Back to results
US 10,881,842 B2Granted
Ureteral stent
AssigneeGyrus ACMI, Inc.
InventorsThomas Holman, Hui Tang, Judy Walish
Life of this patent
Estimating the term…
Abstract
Disclosed herein is ureteral stent. The ureteral stent includes a proximal end, a distal end, and a middle portion. The proximal end includes a retention feature having a coiled shape. The distal end is opposite the proximal end. The middle portion is between the proximal end and the distal end.
Claims17
A ureteral stent comprising:
- a proximal end comprising a retention feature having a coiled shape;
- a distal end opposite the proximal end;
- and
- a middle portion between the proximal end and the distal end, where loops of the coiled shape increase in size as the coiled shape extends away from the middle portion,
- wherein the middle portion comprises at least one opening having smooth opening surfaces, wherein the middle portion comprises a conduit passing through the middle portion, where the at least one opening extends through a side wall of the middle portion into the conduit, where the at least one opening comprises rounded edges at the side wall adjacent the conduit, where the rounded edges are at an interior face of the side wall forming the conduit, and where the rounded edges are configured to reduce turbulence of fluid flow through the conduit.
2 more elements
A ureteral stent comprising:
- a proximal end comprising a retention feature having a coiled shape;
- a distal end opposite the proximal end;
- and
- a middle portion between the proximal end and the distal end, where loops of the coiled shape increase in size as the coiled shape extends away from the middle portion,
- wherein the retention feature comprises a second coiled shape to form a dual conical spiral shape.
2 more elements
A ureteral stent comprising:
- a proximal end comprising a retention feature having a coiled shape;
- a distal end opposite the proximal end;
- and
- a middle portion between the proximal end and the distal end,
- where the middle portion comprises a conduit passing through the middle portion, where the middle portion comprises holes through a side wall of the middle portion into the conduit, and where the holes comprise rounded edges at the side wall adjacent the conduit, where the rounded edges are at an interior face of the side wall forming the conduit, and where the rounded edges are configured to reduce turbulence of fluid flow through the conduit.
2 more elements
A ureteral stent comprising:
- a proximal end comprising a retention feature having a coiled shape;
- a distal end opposite the proximal end;
- a middle portion between the proximal end and the distal end, where the middle portion comprises a conduit passing through the middle portion, where the middle portion comprises at least one side opening through a side wall of the middle portion into the conduit, and where the at least one side opening comprises rounded edges at an interior face of the side wall adjacent the conduit, where the rounded edges are configured to reduce turbulence of fluid flow through the conduit;
- a first valve at the distal end;
- and
- an anti-reflux feature at the middle portion;
- and
- a reflux valve inside the middle portion,
- where the anti-reflux feature is on an exterior of the middle portion, and where the at least one side opening is located between the anti-reflux feature and the retention feature at the proximal end.
6 more elements
Dependencies are inferred from the claim text.