US 6,383,183 B1Granted

High frequency treatment apparatus

AssigneeOlympus Optical Co., Ltd.

InventorsNaomi Sekino, Yasuhiko Kikuchi, Kazuya Hijii, Masahide Ohyama, Kouji Yamauchi, Hiroyuki Takahashi, Takahiro Kogasaka, Akio Nakada, Takeaki Nakamura, Masatoshi Tonomura, Hideto Yoshimine, Hiroaki Matsumoto

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Abstract

A high frequency treatment apparatus of the present invention comprises a high frequency generation section for supplying high frequency power, a control section, which is connected to the high frequency generation section, and which controls output of the high frequency generation section, having a first control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a first predetermined value and a second control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a second predetermined value which is less than the first predetermined value, a treatment tool, which is connected to the high frequency generation section, and which performs a treatment of a diseased part by supplying high frequency power from the high frequency generation section controlled by the control section to the diseased part, and a control mode setting section, which is connected to the control section, for selecting one of the first and second control modes.

Claims15

Dependent claims

A high frequency treatment apparatus comprising:

a high frequency generation section which supplies high frequency power;
a control section which is connected to the high frequency generation section, and which controls output of the high frequency generation section, said control section having:
(i) a first control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a first predetermined value, and (ii) a second control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a second predetermined value which is less than the first predetermined value;
a treatment tool which is connected to the high frequency generation section, and which performs a treatment of diseased tissue by supplying high frequency power from the high frequency generation section controlled by the control section to the diseased tissue;
and
a control mode setting section which is connected to the control section, and which sets one of the first and second control modes;
wherein the first control mode is a high-power mode for performing coagulating and cutting operations, and the second control mode is a low-power mode for performing an ablating operation;
wherein the treatment tool has a plurality of electrodes, to which power is supplied from the high frequency generation section, and by which paracentesis into the diseased tissue is performed;
wherein the control section supplies power from the high frequency generation section to at least one of the plurality of electrodes, and at the same time stops supplying power to at least one other of the plurality of electrodes;
and
wherein each of the electrodes has a fore-end which is forked so as to have two needle-like portions.

8 more elements

A high frequency treatment apparatus comprising:

a high frequency generation section which supplies high frequency power;
a control section which is connected to the high frequency generation section, and which controls output of the high frequency generation section, said control section having:
(i) a first control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a first predetermined value, and (ii) a second control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a second predetermined value which is less than the first predetermined value;
a treatment tool which is connected to the high frequency generation section, and which performs a treatment of diseased tissue by supplying high frequency power from the high frequency generation section controlled by the control section to the diseased tissue;
and
a control mode setting section which is connected to the control section, and which sets one of the first and second control modes;
wherein the first control mode is a high-power mode for performing coagulating and cutting operations, and the second control mode is a low-power mode for performing an ablating operation;
and
wherein the treatment tool comprises:
an insertion section which can be inserted into a biogenic lumen, and which has at least one channel which extends along a lengthwise direction of the insertion section;
a sheath which can be inserted through at least one of said at least one channel of the insertion section;
a first electrode which is provided at a fore-end of the sheath in an exposed manner, and which can be supplied with power from the high frequency generation section;
a second electrode which is provided along an outer periphery of a fore-end portion of the insertion section, and which along with the first electrode is adapted to have a high frequency current supplied therebetween;
and
guiding means for guiding the sheath out of the channel through which the sheath is inserted at a predetermined angle to a lengthwise central axis of the insertion section, wherein the guiding means communicates with said channel and has a hole extending through the outer periphery of the fore-end portion of the insertion section where the second electrode is provided, so that the first electrode protrudes from said channel through the hole at the predetermined angle.

12 more elements

A high frequency treatment apparatus comprising:

a high frequency generation section which supplies high frequency power;
a control section which is connected to the high frequency generation section, and which controls output of the high frequency generation section, said control section having:
(i) a first control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a first predetermined value, and (ii) a second control mode in which the maximal output value of high frequency power supplied from the high frequency generation section is confined to be equal to or less than a second predetermined value which is less than the first predetermined value;
a treatment tool which is connected to the high frequency generation section, and which performs a treatment of diseased tissue by supplying high frequency power from the high frequency generation section controlled by the control section to the diseased tissue;
and
a control mode setting section which is connected to the control section, and which sets one of the first and second control modes;
wherein the first control mode is a high-power mode for performing coagulating and cutting operations, and the second control mode is a low-power mode for performing an ablating operation;
and
wherein the treatment tool comprises:
a sheath having at least one channel;
an internal needle which is removably insertable in the channel of the sheath, paracentesis into biogenic tissues together with the sheath;
a tissue removal tool which is also removably insertable into the channel of the sheath, said tissue removal tool having an electrode to which power is supplied from the high frequency generation section and being adapted to perform removal of the diseased tissue using the electrode;
and
a mandrin which is also removably insertable in the channel of the sheath,
wherein the internal needle, the mandrin and the tissue removal tool are selectively inserted into the sheath.

12 more elements

Dependencies are inferred from the claim text.