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US 7,115,138 B2Granted
Sheath tip
AssigneeBoston Scientific Scimed, Inc.
InventorsRichard J. Renati, Jackson F. Demond, Jeff A. Krolik
Life of this patent
Estimating the term…
Abstract
An embolic protection filter delivery and/or retrieval assembly. In one embodiment the assembly includes a shaft having a filter coupled thereto, a sheath, and a tapering member.
Claims9
An embolic protection filter assembly, comprising;
- an outer sheath having a proximal end, a distal end, a lumen extending therethrough and a central longitudinal axis;
- an elongate shaft disposed in at least a portion of the lumen, the shaft having a distal end;
- an embolic protection filter coupled to the shaft near the distal end thereof;
- wherein a housing region is defined at the distal end of the sheath, the housing region including a housing lumen that is sized to accommodate the filter therein;
- a tapering member coupled to the sheath and disposed near the distal end of the sheath, the tapering member being adapted and configured to shift between a first position and a second position, such that when the tapering member is in the first position, the tapering member provides the outer sheath with a tapered distal tip;
- wherein the tapering member includes a notched tip disposed at the distal end of sheath, the notched tip including a plurality of segments having a plurality of notches disposed therebetween;
- and
- wherein the plurality of segments is biased towards the central longitudinal axis in the first position.
5 more elements
An embolic protection filter assembly, comprising;
- a sheath having a proximal end, a distal end, a lumen extending therethrough, and a central longitudinal axis;
- a guidewire disposed in at least a portion of the lumen, the guidewire having a distal end;
- an embolic protection filter coupled to the guidewire near the distal end thereof;
- wherein a housing region is defined at the distal end of the sheath, the housing region including a housing lumen that is sized to accommodate the filter therein;
- a tapering member coupled to the sheath and disposed near the distal end of the sheath;
- and
- wherein the tapering member is adapted and configured to shift between a first position wherein at least a portion of the tapered region is disposed at the distal end of the sheath and a second position, and wherein the tapering member includes a flexible notched tip disposed at the distal end of sheath, the notched tip including a plurality of segments having a plurality of notches disposed therebetween, wherein the plurality of segments is biased towards the central longitudinal axis in the first position.
4 more elements
Dependencies are inferred from the claim text.