1055400-A1 is referenced by 562 patents and cites 7 patents.

An electrosurgical instrument has coaxial inner and outer tubular members (1,2) made of a conductive material to form a coaxial transmission line. The inner member (1) is preferably dimensioned to receive a laparoscopic tool with the working elements of the tool projecting beyond a distal end (1D) of the inner member (1). Alternatively, the inner member (1) may, itself, incorporate a working element at its distal end. The outer member (2) is connected to the inner member (1) at a distance from the distal end (1D) of the latter, and a radio frequency (r.f.) feed (4) is connected to the inner member (1) distally of the connection (7) between the inner and outer members.; Between the connections there is an r.f. isolating structure formed by or associated with the inner member (1) to present a series impedance between the connections (4,7) at an operating frequency of the instrument.

Title
An electrosurgical instrument
Application Number
EP20000304251 20000519
Publication Number
1055400 (A1)
Application Date
May 19, 2000
Publication Date
November 29, 2000
Inventor
Goble Colin Charles Owen
GB
Amoah Francis Egyin
GB
Penny Keith
GB
Assignee
Gyrus Medical
GB
IPC
A61B 18/14
A61B 18/14
A61B 18/12
A61B 17/32
A61B 17/28
A61B 18/14
A61B 18/12
A61B 17/3201
A61B 17/32
A61B 17/28
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