ENDOSCOPE SYSTEM, ENDOSCOPE AND TREATMENT TOOL

• US 20150366434A1
• 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: SUGIYAMA, Yuta, MATSUI, Akira, TSURUTA, Shoei
• Granted Patent: US 9,833,124 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 1/00071 Insertion part of the endoscope body A61B1/0055 takes precedence
• CPC Class Codes: A61B 1/005 Flexible endoscopes
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 18/12 by passing a current through the tissue to be heated, e.g. high-frequency current
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• 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 2018/00077 high, i.e. electrically conducting
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• 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 2560/0214 of power generation or supply
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 50/10 using inductive coupling

Abstract

An endoscope system having: an endoscope having: an endoscope insertion section wherein the endoscope defines a channel having a distal opening in the endoscope insertion section; and a first inductance element arranged to the channel, and configured to receive a high-frequency power to generate an AC magnetic field; and a treatment tool having: a treatment tool insertion section configured to be movably inserted in the channel; an electrically powered treatment device attached to the treatment tool insertion section; and a second inductance element arranged to the treatment tool insertion section, wherein the second inductance element is electrically connected to the electrically powered treatment device, and wherein the second inductance element is inductively coupled to the first inductance element such that the AC magnetic field induces an electromotive force to generate an induced current in the second inductance element to power the electrically powered treatment device.

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; and

a first inductance element arranged to the channel, wherein the first inductance element is configured to receive a high-frequency power from a power source to generate an AC magnetic field; and

a treatment tool comprising;

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

an electrically powered treatment device attached to the treatment tool insertion section to be moved by the treatment tool insertion section; and

a second inductance element arranged to the treatment tool insertion section,

wherein the second inductance element is electrically connected to the electrically powered treatment device, and

wherein the second inductance element is inductively coupled to the first inductance element such that the AC magnetic field induces an electromotive force to generate an induced current in the second inductance element to power the electrically powered treatment device to perform a treatment.

2. The endoscope system according to claim 1,

wherein the first inductance element and the second inductance element are configured to form resonance circuits, and

wherein the resonance circuits have a resonant frequency that coincides with a frequency of the high-frequency power.

3. The endoscope system according to claim 1,

wherein the first inductance element comprises a first coil extending in a longitudinal direction of the channel of the endoscope, and

wherein the second inductance element comprises a second coil extending in a longitudinal direction of the treatment tool insertion section.

4. The endoscope system according to claim 1,

wherein in an inserted state of the treatment tool, the treatment tool insertion section is inserted in the channel of the endoscope to protrude the electrically powered treatment device from the distal opening in the endoscope insertion section, and

wherein in the inserted state, the second inductance element is inductively coupled to the first inductance element.

5. The endoscope system according to claim 1, wherein the electrically powered treatment device comprises a pair of blades for supplying the high-frequency power to an area to be treated.

6. The endoscope system according to claim 1, wherein the treatment tool further comprises a power converter configured to convert power received by the second inductance element to power used by the electrically powered treatment device to perform the treatment.

7. The endoscope system according to claim 1, wherein the treatment tool further comprises a power storage device configured to store power received by the second inductance element and to output power to the electrically powered treatment device.

8. The endoscope system according to claim 7, wherein the treatment tool further comprises a display configured to display a power storage state of the power storage device.

9. The endoscope system according to claim 7, wherein the power output by the power storage device is higher than the power received by the second inductance element.

10. The endoscope system according to claim 1,

wherein the treatment tool further comprises a spiral coil arranged in the treatment tool insertion section to provide the treatment tool insertion section with flexibility and mechanical strength, and

wherein the second inductance element is formed from a part of the spiral coil.

11. An endoscope for use with a treatment tool,

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

a first inductance element arranged to the channel, wherein the first inductance element is configured to receive a high-frequency power from a power source to generate an AC magnetic field, and

wherein the treatment tool comprises;

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

an electrically powered treatment device attached to the treatment tool insertion section to be moved by the treatment tool insertion section through the distal opening; and

a second inductance element arranged to the treatment tool insertion section,

wherein the second inductance element is electrically connected to the electrically powered treatment device, and

wherein the first inductance element is inductively coupled to the second inductance element such that the AC magnetic field induces an electromotive force to generate an induced current in the second inductance element to power the electrically powered treatment device to perform a treatment.

12. 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; and

a first inductance element arranged to the channel, wherein the first inductance element is configured to receive a high-frequency power from a power source to generate an AC magnetic field, and

wherein the treatment tool comprises;

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

an electrically powered treatment device attached to the treatment tool insertion section to be moved by the treatment tool insertion section through the distal opening; and

a second inductance element arranged to the treatment tool insertion section,

wherein the second inductance element is electrically connected to the electrically powered treatment device, and

wherein the second inductance element is inductively coupled to the first inductance element such that the AC magnetic field induces an electromotive force to generate an induced current in the second inductance element to power the electrically powered treatment device to perform a treatment.