Introducer sheath with retainer
AssigneeRex Medical, L.P.
InventorsJames F. McGuckin JR., Paul Tashjian
Life of this patent
Estimating the term…
Abstract
A surgical introducer sheath comprising a first member having a first longitudinally extending lumen dimensioned to receive a surgical instrument therethrough, a second member having a second longitudinally extending lumen dimensioned to receive the first member, and a retainer adjacent a distal portion of the second member movable from a first retracted position to a second extended position to limit proximal movement of the introducer sheath. Rotational movement of the second member in a first direction moves the retainer to the extended position and rotational movement of the second member in a second direction moves the retainer to a retracted position.
Claims31
A surgical vascular introducer sheath comprising:
- a first member having a first longitudinally extending lumen configured and dimensioned to receive a surgical instrument therethrough;
- a second member having a second longitudinally extending lumen configured and dimensioned to receive the first member;
- and
- a retainer adjacent a distal portion of the second member, the retainer movable from a first retracted position to a second extended position to limit proximal movement of the introducer sheath, the retainer movable in response to movement of the second member.
A surgical sheath for providing a passageway for instrumentation into a vessel comprising:
- a tubular member having a lumen extending longitudinally therein configured and dimensioned for receiving surgical instruments therethrough, the tubular member having a distalmost tip;
- and
- means spaced proximally from the distalmost tip for limiting proximal movement of the sheath with respect to the vessel, the limiting means being movable from a first position to a second position extending laterally with respect to the tubular member and enabling blood flow therethrough in the second position.
A surgical sheath for providing a passageway for instrumentation into a vessel comprising:
- an outer tubular member having a first hole in a side wall;
- an inner tubular member disposed within the outer tubular member and having a passageway for receiving surgical instruments therethrough and having a second hole in a side wall;
- a retainer positioned at a distal portion of the outer tubular member and extendable radially with respect to the outer tubular member, the retainer being movable from a non-blocking position substantially flush with the outer tubular member to a blocking position extending radially outwardly from the outer tubular member.
A method for retaining a surgical introducer sheath comprising the steps of:
- inserting an introducer having inner and outer tubular members and a retainer into body tissue;
- rotating the outer tubular member of the introducer sheath to move the retainer from a retracted position to an extended position so the retainer extends radially outwardly with respect to the introducer sheath,
- introducing a surgical instrument into the introducer sheath;
- performing a surgical step with the surgical instrument;
- withdrawing the surgical instrument, the retainer limiting proximal movement of the introducer sheath during withdrawal of the surgical instrument;
- and
- rotating the outer tubular member of the introducer sheath to return the retainer to its retracted position.
Dependencies are inferred from the claim text.