Electrosurgical blade electrode adding precision dissection performance and tactile feedback
AssigneeCovidien LP
InventorKenlyn Bonn
Life of this patent
Estimating the term…
Abstract
An electrosurgical blade (900) configured to couple to an RF electrosurgical instrument (100). The electrosurgical blade (900) includes a proximal portion (900a) configured to couple to a blade receptacle (104) of an RF electrosurgical instrument (100), a coagulation section (920) extending distally from the proximal portion (900a), a blade edge (940) defined around a periphery of the electrosurgical blade (900), and a ramped surface (930) extending between the coagulation section (920) and the blade edge (940). The blade edge (940) includes a right-angled tip (944) and is defined by a first side (941) extending longitudinally, a second side (942) extending longitudinally and having a curved portion (942c), and a distal side (943) extending laterally.
Claims20
An electrosurgical blade configured to couple to an RF electrosurgical instrument, the electrosurgical blade comprising:
- a proximal portion formed from a conductive material and configured to couple to a blade receptacle of an RF electrosurgical instrument;
- a first section formed from the conductive material and extending distally from the proximal portion and having a first thickness;
- a second section formed from the conductive material and extending distally from the first section, the second section having a second thickness less than the first thickness thereby defining a first step between the first section and the second section;
- a third section formed from the conductive material and extending distally from the second section, the third section having a third thickness less than the second thickness thereby defining a second step between the second section and the third section;
- and
- a blade edge formed from the conductive material and disposed along a peripheral edge of the third section,
- wherein the proximal portion, the first section, the second section, the third section, and the blade edge are connected to one another to define a monolithic electrode configured to permit electrosurgical energy transmission therethrough.
An RF electrosurgical instrument comprising:
- a blade receptacle;
- and
- an electrosurgical blade removably couplable to the blade receptacle, the electrosurgical blade including:
- a proximal portion formed from a conductive material and configured to couple to the blade receptacle of the RF electrosurgical instrument;
- a first section formed from the conductive material and extending distally from the proximal portion and having a first thickness;
- a second section formed from the conductive material and extending distally from the first section, the second section having a second thickness less than the first thickness thereby defining a first step between the first section and the second section;
- a third section formed from the conductive material and extending distally from the second section, the third section having a third thickness less than the second thickness thereby defining a second step between the second section and the third section;
- and
- a blade edge formed from the conductive material and disposed along a peripheral edge of the third section,
- wherein the proximal portion, the first section, the second section, the third section, and the blade edge are connected to one another to define a monolithic electrode configured to permit electrosurgical energy transmission through the electrosurgical blade to tissue.
An electrosurgical system comprising:
- an electrosurgical generator configured to generate RF electrosurgical energy;
- and
- an RF electrosurgical instrument configured to couple to the electrosurgical generator and transmit the RF electrosurgical energy to tissue, the RF electrosurgical instrument including an electrosurgical blade including:
- a proximal portion formed from a conductive material and configured to couple to a blade receptacle of the RF electrosurgical instrument;
- a first section formed from the conductive material and extending distally from the proximal portion and having a first thickness;
- a second section formed from the conductive material and extending distally from the first section, the second section having a second thickness less than the first thickness thereby defining a first step between the first section and the second section;
- a third section formed from the conductive material and extending distally from the second section, the third section having a third thickness less than the second thickness thereby defining a second step between the second section and the third section;
- and
- a blade edge formed from the conductive material and disposed along a peripheral edge of the third section,
- wherein the proximal portion, the first section, the second section, the third section, and the blade edge are connected to one another to define a monolithic electrode configured to permit transmission of the RF electrosurgical energy through the electrosurgical blade to tissue.
Dependencies are inferred from the claim text.