US 2006/0235431 A1 · Lead extraction device

Abstract

An extraction device for removing an implanted structure, such as a cardiac lead, from a body vessel. An elongated sheath having a proximal end, a distal end, and a passageway extending therethrough is sized such that at least a distal portion of the sheath is receivable in the body vessel. A tip configured for disassociating at least a portion of the implanted structure from the body vessel is engaged at the distal end of the sheath. A handle is configured for engagement with the proximal end of the sheath. The handle includes an actuator and a drive mechanism responsive to the actuator for selectively translating input of the actuator into rotary movement and/or axial advancement of the sheath.

Claims29

Dependent claims

A device for removing an implanted structure from a body vessel, the device comprising:

an elongated sheath having a proximal end, a distal end, and a passageway extending therethrough, said sheath having a length such that at least a distal portion of said sheath is receivable in said body vessel, said passageway sized such that said implanted structure is receivable therein;
and
a handle configured for engagement with said sheath proximal end, said handle including an actuator and a drive mechanism responsive to said actuator, said drive mechanism operable for selectively translating input of said actuator into at least one of rotation and axial advancement of said sheath.

A device for removing an implanted structure from a body vessel, comprising:

a striker mechanism, said striker mechanism comprising an axially movable elongated body having a leading edge at a distal end thereof, a bias member carried by said elongated body, said bias member capable of compression upon axial movement of said elongated body in a proximal direction, and of generating an axial spring force in a distal direction upon release of said compression, and a stop member for limiting axial movement of said elongated body in said distal direction;
a flange positioned for engagement with said elongated body leading edge upon generation of said axial spring force, and for transmitting said axial spring force in said distal direction;
and
an elongated member positioned for receiving said transmitted axial spring force from said flange member such that incremental axial movement of said elongated member in said distal direction is generated thereby, said elongated member having a tip at a distal end thereof configured for separating said implanted structure from said vessel;
wherein said device comprises a longitudinal passageway therethrough for receiving said implanted structure.

2 more elements

Dependencies are inferred from the claim text.

Lead extraction device

Life of this patent

Lead extraction device

Life of this patent

Abstract

Claims29