Fluid-assisted electrosurgical scissors and methods
First Claim
Patent Images
1. A fluid-assisted electrosurgical scissors to treat tissue, the scissors comprising:
- an end effector comprising a first blade member and a second blade member, the first blade member and the second blade member pivotally connected and arranged to cut tissue;
at least one of the first blade member and the second blade member electrically coupled to an electrical connector connectable to a radio frequency power source;
the first blade member comprising a first blade member shearing edge extending to a distal end of the first blade member and the second blade member comprising a second blade member shearing edge extending to a distal end of the second blade member;
the first blade member comprising a first blade member distal portion and the second blade member comprising a second blade member distal portion, wherein at least one of the distal portions further comprises a bulbous portion protruding from a respective one of the first blade member or second blade member, the bulbous portion being bulbous relative to a remainder of the respective one of the first blade member or the second blade member, wherein the bulbous portion has an exposed electrically-conductive surface;
a fluid passage in fluid communication with at least one fluid outlet, wherein the at least one fluid outlet is positioned to expel fluid to the end effector;
a shaft having a first lumen, wherein the end effector is connected to the shaft; and
a rod having a second lumen providing a portion of the fluid passage, wherein a portion of the rod is positioned in the first lumen.
9 Assignments
0 Petitions
Accused Products
Abstract
An electrosurgical scissors comprising an end effector comprising a first blade member and a second blade member, the first blade member and the second blade member pivotally connected; an electrical connector configured to couple the scissors to a power source; and a fluid passage in fluid communication with at least one fluid outlet.
-
Citations
20 Claims
-
1. A fluid-assisted electrosurgical scissors to treat tissue, the scissors comprising:
-
an end effector comprising a first blade member and a second blade member, the first blade member and the second blade member pivotally connected and arranged to cut tissue; at least one of the first blade member and the second blade member electrically coupled to an electrical connector connectable to a radio frequency power source; the first blade member comprising a first blade member shearing edge extending to a distal end of the first blade member and the second blade member comprising a second blade member shearing edge extending to a distal end of the second blade member; the first blade member comprising a first blade member distal portion and the second blade member comprising a second blade member distal portion, wherein at least one of the distal portions further comprises a bulbous portion protruding from a respective one of the first blade member or second blade member, the bulbous portion being bulbous relative to a remainder of the respective one of the first blade member or the second blade member, wherein the bulbous portion has an exposed electrically-conductive surface; a fluid passage in fluid communication with at least one fluid outlet, wherein the at least one fluid outlet is positioned to expel fluid to the end effector; a shaft having a first lumen, wherein the end effector is connected to the shaft; and a rod having a second lumen providing a portion of the fluid passage, wherein a portion of the rod is positioned in the first lumen. - View Dependent Claims (2, 3, 4)
-
-
5. A fluid-assisted electrosurgical scissors to treat tissue, the scissors comprising:
-
an end effector comprising a first blade member and a second blade member, the first blade member and the second blade member pivotally connected and arranged to cut tissue; at least one of the first blade member and the second blade member electrically coupled to an electrical connector connectable to a radio frequency power source; the first blade member comprising a first blade member shearing edge extending to a distal end of the first blade member and the second blade member comprising a second blade member shearing edge extending to a distal end of the second blade member; the first blade member comprising a first blade member distal portion and the second blade member comprising a second blade member distal portion, wherein at least one of the distal portions further comprises a bulbous portion protruding from an exterior side of a respective one of the first blade member or second blade member, the bulbous portion being bulbous relative to a remainder of the respective one of the first blade member or second blade member, wherein; the bulbous portion has an exposed electrically-conductive surface serving as an electrode pole configured to operate in a monopolar configuration, the exposed electrically-conductive surface facing opposite of an interior side surface of the respective blade member which is provided with the shearing edge; a fluid passage in fluid communication with at least one fluid outlet; and the at least one fluid outlet positioned to expel a fluid to the end effector to create a fluid coupling between the end effector and tissue at a treatment site and wherein the at least one fluid outlet is obstructed from contact with tissue by at least one of the blade members. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification