ENDOSCOPE SYSTEM, ENDOSCOPE AND TREATMENT TOOL

• US 20150366610A1
• Filed: 08/31/2015
• Published: 12/24/2015
• Est. Priority Date: 06/28/2013
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: TSURUTA, Shoei, SUGIYAMA, Yuta, MATSUI, Akira
• Granted Patent: US 10,016,235 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 1/00029 externally powered, e.g. wireless
• CPC Class Codes: A61B 1/00124 electrical, e.g. electrical plug-and-socket connection
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2017/0034 adapted to be inserted through a working channel of an endoscope
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/00982 combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2018/1286 having a specific transformer
• CPC Class Codes: A61B 2018/147 Electrodes transferring energy by capacitive coupling, i.e. with a dielectricum between electrode and target tissue
• CPC Class Codes: A61B 2560/0214 of power generation or supply
• CPC Class Codes: G02B 23/2476 Non-optical details, e.g. housings, mountings, supports
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 50/05 using capacitive coupling

Abstract

An endoscope system having: an endoscope having: a first transmission electrode arranged to a channel defined by the endoscope; and a second transmission electrode arranged to the channel, wherein the first transmission electrode and the second transmission electrode are electrically connected to the power source; and a treatment tool having: a first reception electrode arranged to a treatment tool insertion section, and spaced apart from the first transmission electrode to form a first capacitor; a second reception electrode arranged to the treatment tool insertion section, and spaced apart from the second transmission electrode to form a second capacitor; and an electrically powered treatment device configured to be moved by the treatment tool insertion section, wherein the electrically powered treatment device is electrically connected to the first reception electrode and the second reception electrode to be powered to perform a treatment on a subject.

Claims

1. An endoscope system comprising:

an endoscope comprising;

an endoscope insertion section comprising a portion that is flexible, wherein the endoscope defines a channel having a distal opening in the endoscope insertion section;

a first transmission electrode arranged to the channel, wherein the first transmission electrode is electrically connected to a power source configured to output a high-frequency power; and

a second transmission electrode arranged to the channel, wherein the second transmission electrode is electrically connected to the power source; and

a treatment tool comprising;

a treatment tool insertion section configured to be movably inserted in the channel of the endoscope;

a first reception electrode arranged to the treatment tool insertion section, wherein the first reception electrode is spaced apart from the first transmission electrode to form a first capacitor;

a second reception electrode arranged to the treatment tool insertion section, wherein the second reception electrode is spaced apart from the second transmission electrode to form a second capacitor; and

an electrically powered treatment device attached to the treatment tool insertion section to be moved by the treatment tool insertion section, wherein the electrically powered treatment device is electrically connected to the first reception electrode and the second reception electrode to be powered to perform a treatment on a subject.

2. The endoscope system according to claim 1, wherein in an operating position of the treatment tool, the treatment tool insertion section is configured to be arranged relative to the channel of the endoscope such that:

the first reception electrode is spaced apart from the first transmission electrode to form the first capacitor; and

the second reception electrode is spaced apart from the second transmission electrode to form the second capacitor.

3. The endoscope system according to claim 2, wherein the first transmission electrode, the second transmission electrode, the first reception electrode, and the second reception electrode are arranged along a circumference of the channel.

4. The endoscope system according to claim 1, wherein in an operating position of the treatment tool:

the first transmission electrode and the first reception electrode are arranged in a concentric fashion to form the first capacitor; and

the second transmission electrode and the second reception electrode are arranged in a concentric fashion to form the second capacitor.

5. The endoscope system according to claim 1, wherein the first reception electrode and the second reception electrode are formed from a spiral coil.

6. The endoscope system according to claim 1, wherein the electrically powered treatment device comprises a pair of blades configured to supply power to an area to be treated.

7. The endoscope system according to claim 1, wherein the endoscope further comprises:

a variable inductor, wherein the variable inductor, the first capacitor, and the second capacitor are electrically connected to form a resonant circuit; and

a controller configured to control the variable inductor to adjust a resonant frequency to coincide with a frequency of the high-frequency power.

8. The endoscope system according to claim 1, wherein the treatment tool further comprises a power converter configured to convert a first form of a power received by the first reception electrode and the second reception electrode into a second form used by the electrically powered treatment device to perform the treatment on the subject.

9. The endoscope system according to claim 1, wherein the treatment tool further comprises a power storage device configured to store the power received by the first reception electrode and the second reception electrode, and to output the stored power to the electrically powered treatment device.

10. The endoscope system according to claim 9, wherein the treatment tool further comprises a display configured to display a power storage state of the power storage device.

11. The endoscope system according to claim 9, wherein the power storage device is configured such that the power output is higher than the power received.

12. An endoscope for use with a treatment tool,

wherein the treatment tool comprises:

a treatment tool insertion section;

a first reception electrode arranged to the treatment tool insertion section;

a second reception electrode arranged to the treatment tool insertion section; and

an electrically powered treatment device attached to the treatment tool insertion section to be moved by the treatment tool insertion section, wherein the electrically powered treatment device is electrically connected to the first reception electrode and the second reception electrode;

wherein the endoscope comprises;

an endoscope insertion section comprising a portion that is flexible,

wherein the endoscope defines a channel having a distal opening in the endoscope insertion section, and

wherein the channel is configured to permit the treatment tool insertion section to be movably inserted in the channel;

a first transmission electrode arranged to the channel,

wherein the first transmission electrode is electrically connected to a power source configured to output a high-frequency power, and

wherein the first transmission electrode is spaced apart from the first reception electrode to form a first capacitor; and

a second transmission electrode arranged to the channel,

wherein the second transmission electrode is electrically connected to the power source, and

wherein the second transmission electrode is spaced apart from the second reception electrode to form a second capacitor,

wherein the first transmission electrode and the second transmission electrode are configured to transmit power to the first reception electrode and the second reception electrode to power the electrically powered treatment device to perform a treatment on a subject.

13. A treatment tool for use with an endoscope,

wherein the endoscope comprises:

an endoscope insertion section comprising a portion that is flexible, wherein the endoscope defines a channel having a distal opening in the endoscope insertion section;

a first transmission electrode arranged to the channel, wherein the first transmission electrode is electrically connected to a power source configured to output a high-frequency power; and

a second transmission electrode arranged to the channel, wherein the second transmission electrode is electrically connected to the power source; and

wherein the treatment tool comprises;

a treatment tool insertion section configured to be movably inserted in the channel of the endoscope;

a first reception electrode arranged to the treatment tool insertion section, wherein the first reception electrode is spaced apart from the first transmission electrode to form a first capacitor;

a second reception electrode arranged to the treatment tool insertion section, wherein the second reception electrode is spaced apart from the second transmission electrode to form a second capacitor; and

an electrically powered treatment device attached to the treatment tool insertion section to be moved by the treatment tool insertion section, wherein the electrically powered treatment device is electrically connected to the first reception electrode and the second reception electrode to be powered to perform a treatment on a subject.