Multi-port side-fire coagulator
AssigneeCovidien LP
InventorRobert Platt
Life of this patent
Estimating the term…
Abstract
An electrosurgical apparatus for coagulating tissue used in combination with an endoscope which includes an elongated flexible tube having a plurality of side-ports located therethrough. The tube extends through a working channel of the endoscope and an ionizable gas is supplied to the tube at or near the proximal end of the tube. A diffusing member directs the ionizable gas from the proximal end of the tube through each of the side-ports towards the tissue. An electrode is used for ionizing the gas prior to the gas exiting the side-ports.
Claims27
An electrosurgical apparatus for coagulating tissue, comprising:
- an elongated flexible tube having a proximal end and a distal end, said tube comprising a plurality of side-ports which are disposed therethrough between said proximal and distal ends;
- a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue;
- and
- at least one electrode for ionizing said gas prior to said ionizable gas exiting said side-ports.
An electrosurgical apparatus for coagulating tissue, comprising:
- an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
- said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
- a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising:
- a first plenum disposed within said tube having a plurality of apertures located therethrough;
- and
- a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said gas to one of said side-ports;
- and
- at least one electrode for ionizing said gas prior to said gas exiting said side-ports.
An electrosurgical apparatus for coagulating tissue, comprising:
- an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
- said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
- a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising:
- a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough;
- and
- a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports;
- a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports;
- and
- a regulator for regulating the flow of said gas through said first plenum into each of said apertures.
Dependencies are inferred from the claim text.