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US 9,867,654 B2Granted
Method and apparatus for vascular tissue sealing with reduced energy consumption
AssigneeCovidien LP
InventorsBoris Chernov, Igoris Misuchenko, Georgy Martsinovskiy, Mikhail Verbitsky
Life of this patent
Estimating the term…
Abstract
An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly includes a pair of opposing jaw members configured to grasp tissue therebetween. Each of the opposing jaw members includes a non conducting tissue contact surface and an energy delivering element configured to perforate the tissue to create an opening, extract elastin and collagen from the tissue and denaturize the elastin and the collagen in the vicinity of the opening.
Claims16
An end effector assembly, comprising:
- opposing first and second jaw members configured to grasp tissue therebetween, each of the opposing first and second jaw members including:
- a non-conducting tissue contact surface;
- and
- at least one energy delivering element associated with the non-conducting tissue contact surface, the at least one energy delivering element including a post electrode and a ring electrode, wherein the post electrode and the ring electrode of the at least one energy delivering element associated with the first jaw member are connected to a first electrical path having a first electrical potential and wherein the post electrode and the ring electrode of the at least one energy delivering element associated with the second jaw member are connected to a second electrical path having a second electrical potential different than the first electrical potential.
1 more element
An electrosurgical instrument, comprising:
- a housing;
- a handle assembly;
- and
- an end effector assembly including opposing first and second jaw members configured to grasp tissue therebetween, each of the opposing first and second jaw members including:
- a non-conducting tissue contact surface;
- and
- at least one energy delivering element associated with the non-conducting tissue contact surface, the at least one energy delivering element including a post electrode and a ring electrode, wherein the post electrode and the ring electrode of the at least one energy delivering element associated with the first jaw member are connected to a first electrical path having a first electrical potential, and wherein the post electrode and the ring electrode of the at least one energy delivering element associated with the second jaw member are connected to a second electrical path having a second electrical potential different than the first electrical potential.
4 more elements
Dependencies are inferred from the claim text.