JPWO2020011546A5 - - Google Patents

Claims (23)

It ’s an electric surgical instrument,
A coaxial feeding cable for transmitting microwave energy and / or high frequency energy, wherein the coaxial feeding cable has an inner conductor, an outer conductor, and a dielectric material that separates the inner conductor from the outer conductor. Power cable and
A radiating tip located at the distal end of the coaxial feeding cable to receive the microwave energy and / or the high frequency energy.
An energy delivery structure configured to deliver the microwave energy and / or the high frequency energy received from the coaxial feeding cable from the outer surface of the radiation tip, wherein the energy delivery structure is the interior. With the energy delivery structure comprising an elongated conductor electrically connected to a conductor and extending longitudinally beyond the distal end of the coaxial feeding cable.
A dielectric placed around the elongated conductor.
With the dielectric, the dielectric comprises a cavity therein and the cavity is placed adjacent to the elongated conductor to facilitate bending of the radiating tip.
With the radiation tip, including
The electric surgical instrument comprising. The electrosurgical instrument of claim 1, wherein the cavity is disposed around the elongated conductor. The electrosurgical instrument of claim 1 or 2, wherein the cavity comprises a lumen extending longitudinally into the dielectric. The electrosurgical instrument of claim 3, wherein the dielectric comprises an inner sleeve that surrounds the elongated conductor, and the lumen is separated from the elongated conductor by a radial thickness of the inner sleeve. The electrosurgical instrument of claim 3 or 4, wherein the lumen has an annular cross section. The electrosurgical instrument of claim 3, wherein the lumen forms a longitudinally extending groove arranged on the outer surface of the dielectric. The electrosurgical instrument according to claim 1 or 2, wherein the lumen is formed by a recess in the dielectric. The electrosurgical instrument of claim 7, wherein the recess forms a circumferential groove extending around the dielectric. The electrosurgical instrument of claim 7 or 8, wherein the dielectric comprises a corrugated surface and the recess is formed by the corrugated surface of the corrugated surface. The radiation tip further comprises an outer sheath disposed around the outer surface of the dielectric so that the outer sheath allows relative movement between the outer sheath and the dielectric. The electric surgical instrument according to any one of claims 1 to 9 , which is separated from the electric surgical instrument. It ’s an electric surgical instrument,
A coaxial feeding cable for transmitting microwave energy and / or high frequency energy, wherein the coaxial feeding cable has an inner conductor, an outer conductor, and a dielectric material that separates the inner conductor from the outer conductor. Power cable and
A radiating tip located at the distal end of the coaxial feeding cable to receive the microwave energy and / or the high frequency energy.
An energy delivery structure configured to deliver the microwave energy and / or the high frequency energy received from the coaxial feeding cable from the outer surface of the radiation tip, wherein the energy delivery structure is the interior. With the energy delivery structure comprising an elongated conductor electrically connected to a conductor and extending longitudinally beyond the distal end of the coaxial feeding cable.
With the dielectric placed around the elongated conductor,
An outer sheath disposed around the outer surface of the dielectric, wherein the outer sheath comprises a sleeve of insulating material covering the outer surface of the dielectric, and the outer sheath is the outer sheath and the dielectric. With the radiation tip, including the outer sheath, which is separated from the dielectric to allow relative movement between the bodies.
The electric surgical instrument comprising. 10. The electrosurgical instrument of claim 10 or 11, wherein the dielectric is made of a first dielectric material and the outer sheath is made of a second dielectric material different from the first dielectric material. .. The electrosurgical instrument according to claim 12, wherein the first dielectric material has a higher melting temperature than the second dielectric material. The electrosurgical instrument according to claim 13, wherein the first dielectric material is polytetrafluoroethylene and the second dielectric material is fluorinated ethylene propylene. The electrosurgical instrument of any one of claims 10-14, wherein the outer sheath comprises a distal tip disposed so as to cover the distal end of the dielectric. The electrosurgical instrument of any one of claims 10-15, wherein the outer sheath is configured to form a seal around the outer surface of the dielectric. The electrosurgical instrument of any one of claims 11-16, wherein the dielectric comprises a spiral into which the elongated conductor extends through it. It ’s an electric surgical instrument,
A coaxial feeding cable for transmitting microwave energy and / or high frequency energy, wherein the coaxial feeding cable has an inner conductor, an outer conductor, and a dielectric material that separates the inner conductor from the outer conductor. Power cable and
A radiating tip located at the distal end of the coaxial feeding cable to receive the microwave energy and / or the high frequency energy.
An energy delivery structure configured to deliver the microwave energy and / or the high frequency energy received from the coaxial feeding cable from the outer surface of the radiation tip, wherein the energy delivery structure is the interior. With the energy delivery structure comprising an elongated conductor electrically connected to a conductor and extending longitudinally beyond the distal end of the coaxial feeding cable.
A dielectric placed around the elongated conductor.
With the radiating tip, the dielectric comprises the dielectric, comprising a spiral, comprising a spiral spring in which the elongated conductor extends through it.
The electric surgical instrument comprising. The energy delivery structure comprises a proximal adjustment element and a distal adjustment element, each of which is electrically connected to the elongated conductor, the proximal adjustment element and the distal adjustment element being only the length of the elongated conductor. Separated in the longitudinal direction,
The electrosurgical instrument according to any one of claims 1 to 18 , wherein the dielectric comprises a first dielectric spacer disposed between the proximal adjustment element and the distal adjustment element. The energy delivery structure comprises a distal electrode and a proximal electrode disposed on the surface of the dielectric, the distal electrode and the proximal electrode being physically separated from each other by an intermediate portion of the dielectric. Has been
The proximal electrode is electrically connected to the outer conductor and
The electrosurgical instrument according to any one of claims 1 to 18, wherein the distal electrode is electrically connected to the internal conductor via the elongated conductor. 20. The electrosurgical instrument of claim 20, further comprising an adjusting element attached to said intermediate portion of the dielectric. An electrosurgical device for treating a living tissue, and the electrosurgical device is
With an electrosurgical generator arranged to supply microwave energy and / or high frequency energy,
The electrosurgery comprising the electrosurgical instrument of any one of claims 1-21 connected to receive the microwave energy and / or the high frequency energy from the electrosurgery generator. Device. 22. The electrosurgical device of claim 22, further comprising a surgical scope device comprising a flexible insertion cord having an instrument channel, wherein the electrosurgical instrument is sized to fit within the instrument channel.