Surgical biopsy device
First Claim
Patent Images
1. A surgical biopsy apparatus for cutting tissue comprising:
- a housing having a longitudinal axis;
first and second members movable distally from a retracted position to an extended position with respect to the housing;
third and fourth members, the third member slidably positioned with respect to the first member and extendable with respect to the first member and the fourth member slidably positioned with respect to the second member and extendable with respect to the second member; and
an electrocautery cutting wire movable distally with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue, the wire formed into a loop open to cut tissue in a distal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A surgical biopsy apparatus for cutting tissue comprising a housing having a longitudinal axis, first and second members movable from a retracted position to an extended position with respect to the housing, a third member slidably positioned and extendable with respect to the first member, a fourth member slidably positioned and extendable with respect to the second member, and an electrocautery cutting wire slidable with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue.
210 Citations
33 Claims
-
1. A surgical biopsy apparatus for cutting tissue comprising:
-
a housing having a longitudinal axis;
first and second members movable distally from a retracted position to an extended position with respect to the housing;
third and fourth members, the third member slidably positioned with respect to the first member and extendable with respect to the first member and the fourth member slidably positioned with respect to the second member and extendable with respect to the second member; and
an electrocautery cutting wire movable distally with respect to the third and fourth members to surround a region of tissue positioned between the third and fourth members to cut the tissue, the wire formed into a loop open to cut tissue in a distal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A surgical biopsy apparatus for cutting a tissue mass comprising:
-
a housing having a longitudinal axis;
a plurality of first members extendable with respect to the housing, the first members movable in a first direction at a first angle to the longitudinal axis of the housing;
a plurality of second members movable with respect to the first members in a second direction different than the first direction and at an angle to the first angle, the second members having tips configured to penetrate tissue as moved with respect to the first members; and
a cutting wire movable longitudinally with respect to the first and second members to cut the tissue mass. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A surgical biopsy apparatus comprising:
-
a housing;
at least three members advanceable with respect to the housing to provide a three-dimensional boundary for an area of tissue to be removed, at least a portion of the at least three members extending in different directions;
a cutting wire loop advanceable with respect to the plurality of members to cut the area of tissue wherein the cutting wire loop is moved to a larger diameter as it is advanced with respect to the members and is supported by at least one carrier, the at least one carrier advanceable over one of the plurality of members; and
a tissue retrieval bag operatively connected to the at least one carrier, wherein advancement of the at least one carrier with respect to the plurality of members advances the cutting wire and the tissue retrieval bag toward the target tissue. - View Dependent Claims (18)
-
-
19. A surgical biopsy apparatus comprising:
-
a housing having a longitudinal axis;
a plurality of members advanceable with respect to the housing to provide a boundary for an area of tissue to be removed;
a tissue retrieval bag having an opening facing in a distal direction, the opening expanding in a plane substantially perpendicular to the longitudinal axis of the housing as it advances distally with respect to the plurality of members to remove the area of tissue. - View Dependent Claims (20, 21)
-
-
22. A surgical biopsy apparatus comprising:
-
a housing having a longitudinal axis;
a plurality of tissue penetrating members extendable with respect to the housing at an angle to the longitudinal axis;
a carrier slidable with respect to the tissue penetrating members for advancing and expanding a wire to cut tissue; and
a tissue containment bag, the tissue containment bag operatively associated with the carrier so that slidable movement of the carrier advances the tissue containment bag to the target tissue.
-
-
23. A method for removing a tissue mass for biopsy comprising:
-
inserting a cannula to a position proximal of the target tissue mass;
advancing a plurality of tissue penetrating members from the cannula to an angular position to create a boundary area around the tissue mass; and
subsequently advancing distally an electrocautery cutting wire with respect to the tissue penetrating members to surround the tissue mass defined within the boundary area. - View Dependent Claims (24, 25, 26)
-
-
27. A method for performing breast biopsy comprising:
-
inserting into breast tissue a housing having a diameter smaller than a diameter of the tissue to be biopsied;
advancing penetrating members through the breast tissue to create a tissue boundary area having a transverse cross-sectional length greater than the diameter of the housing; and
advancing a cutting wire so a loop of the cutting wire moves to a diameter greater than the diameter of the housing is an opening of the loop expands in a plane substantially perpendicular to a longitudinal axis of the housing as the wire moves distally with respect to the penetrating members; and
advancing a tissue retrieval bag so a mouth of the bag moves to a diameter greater than the diameter of the housing.
-
-
28. A surgical biopsy apparatus comprising:
-
a housing;
a plurality of members advanceable with respect to the housing to initially provide a boundary for an area of tissue to be removed;
a cutting loop advanceable with respect to the plurality of members and directed by the plurality of members to increase the transverse opening of the loop to cut the area of tissue. - View Dependent Claims (29)
-
-
30. A surgical biopsy apparatus for cutting an area of tissue comprising:
-
a housing;
a plurality of members advanceable with respect to the housing to initially provide a boundary for an area of tissue to be removed;
a tissue retrieval member advanceable with respect to the plurality of members and directed by the plurality of members to increase the transverse opening of a mouth of the tissue retrieval member to retrieve the cut tissue.
-
-
31. A surgical biopsy apparatus comprising:
-
a housing;
an electrocautery cutting loop advanceable from the housing and having a transverse opening expandable to a larger diameter as it is advanced distally to cut an area of tissue; and
a tissue retrieval member having a mouth and advanceable from the housing so a transverse opening of the mouth expands to a larger diameter as it is advanced distally to retrieve the cut tissue. - View Dependent Claims (32, 33)
-
Specification