US 2003/0153909 A1 · Tissue cutting and retrieval device and method

Abstract

A device for cutting and retrieving tissue, includes a handle, a first set of at least one wire, and a second set of at least one wire. The handle includes an elongated shaft, a tube, a first sleeve member disposed over the shaft, and a second sleeve member disposed over the shaft. The shaft defines a passageway therein. The tube connects to and extends from a distal end of the passageway, and forms a continuing channel with the passageway. The two sets of wires, attached respectively to the first sleeve member and the second sleeve member, extend through the channel to distal ends of the wires, and form loops at their distal ends. A control tip is secured to the distal end of the first set of wire. A retaining pin is secured to the control tip, extends between at least two wires of the loop of the second set of wire, allows the second set of wire to be extended from the tube and through the control tip, and prevents the second set of wire from being withdrawn from the control tip and into the tube. The retaining pin also extends the second set of wire from the tube upon the first set of wire being extended from the tube.

Claims35

Dependent claims

A device for selectively capturing, cutting and retrieving tissue, comprising:

A) a handle having an elongated, flexible tube extending therefrom along a central axis to a distal end, said tube having a diameter D at its distal end;
B) a first set of at least one elongated, flexible wire slidingly positioned within the tube and extending along the central axis from the handle to a distal end for extending out of the distal end of the tube, wherein said distal end include a control tip portion extending a distance larger than D in a direction transverse to said central axis, said control tip portion defining two apertures separated by a retaining portion,
C) a second set of at least one elongated, flexible wire slidingly positioned within the tube and extending along the central axis from the handle to a distal end, wherein the second set of wire passes on opposite sides of said retaining portion and through an associated one of said apertures of said control tip portion,
wherein said distal ends of said first set of wire and said second set of wire are each adapted for selective positioning along said central axis between points adjacent to said distal end of said tube and points distal therefrom.

1 more element

A device for selectively capturing, cutting and retrieving tissue, comprising:

A) a handle comprising:
a) an elongated shaft extending along a central axis, said shaft defining a longitudinal passageway therein along the central axis;
b) an elongated, flexible tube connected to and extending from a distal end of the passageway of the shaft along the central axis to a distal end of said tube;
c) a first sleeve member disposed over said shaft and being slidingly movable on said shaft;
d) a second sleeve member disposed over said shaft and being slidingly movable on said shaft;
and
e) a latch mechanism coupled to said first sleeve member, said shaft, and said second sleeve member, for selectively latching said first sleeve member to said shaft and said second sleeve member;
B) a first set of at least one elongated, flexible wire attached to said first sleeve member, said first set of wire extending through the passageway of said shaft and the flexible tube to a distal end for extending out of the distal end of the tube, said first set of wire forming a loop at the distal end of said first set of wire;
C) a second set of at least one elongated, flexible wire attached to said second sleeve member, said second set of wire extending through the passageway of said shaft and the flexible tube to a distal end for extending out of the distal end of the tube, said second set of wire forming a loop at the distal end of said second set of wire;
D) a control tip at the distal end of the first set of wire and including a transverse portion extending beyond the distal end of the tube in a direction transverse to the central axis, the transverse portion being adapted for interfering engagement with the distal end of said tube, thereby preventing the distal end of said first set of wire from being wholly drawn into said tube, and
wherein said control tip includes two apertures separated by a retaining portion, wherein said second set of wire passes on opposite sides of said retaining portion and through an associated one of said apertures, and wherein said retaining portion is adapted for interfering engagement with the loop of said second set of wire, thereby maintaining said distal end of said second set of wire farther from said distal end of said tube than said control tip.

8 more elements

A device for selectively capturing, cutting and retrieving tissue, comprising:

A) a handle comprising:
a) an elongated shaft extending along a central axis, said shaft defining a longitudinal passageway therein along the central axis;
b) an elongated, flexible tube connected to and extending from a distal end of the passageway of the shaft along the central axis to a distal end of said tube;
c) a first sleeve member disposed over said shaft and being slidingly movable on said shaft;
d) a second sleeve member disposed over said shaft and being slidingly movable on said shaft;
e) a first latch mechanism coupled to said shaft and said first sleeve member for latching said first sleeve member to said shaft;
and
h) a second latch mechanism coupled to said first sleeve member and said second sleeve member for latching said second sleeve member to said first sleeve member;
B) a first set of at least one elongated, flexible wire attached to said first sleeve member, said first set of wire extending through the passageway of said shaft and the flexible tube to a distal end for extending out of the distal end of the tube, said first set of wire forming a loop at the distal end of said first set of wire;
C) a second set of at least one elongated, flexible wire attached to said second sleeve member, said second set of wire extending through the passageway of said shaft and the flexible tube to a distal end for extending out of the distal end of the tube, said second set of wire forming a loop at the distal end of said second set of wire;
D) a control tip at the distal end of the first set of wire and including a transverse portion extending beyond the distal end of the tube in a direction transverse to the central axis, the transverse portion being adapted for interfering engagement with the distal end of said tube, thereby preventing the distal end of said first set of wire from being wholly drawn into said tube, and
wherein said control tip includes two apertures separated by a retaining portion, wherein said second set of wire passes on opposite sides of said retaining portion and through an associated one of said apertures, and wherein said retaining portion is adapted for interfering engagement of the loop of said second set of wire, thereby maintaining said distal end of said second set of wire farther from said distal end of said tube than said control tip.

9 more elements

Dependencies are inferred from the claim text.

Tissue cutting and retrieval device and method

Life of this patent

Tissue cutting and retrieval device and method

Life of this patent

Abstract

Claims35