ENDOSCOPE TREATMENT SYSTEM

• US 20090137867A1
• Filed: 11/25/2008
• Published: 05/28/2009
• Est. Priority Date: 11/28/2007
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Inventors: GOTO, Hiroaki
• Granted Patent: US 8,491,463 B2
• Time in Patent Office: Days
• US Class Current: 600/104
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• 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 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/0034 adapted to be inserted through a working channel of an endoscope
• CPC Class Codes: A61B 2017/00902 transparent or translucent

Abstract

An endoscope treatment system includes: an endoscope; and a treatment tool that has a sheath that is inserted in a channel of an insertion portion of the endoscope, in which projection portions that project outward from the sheath in the radial direction are provided, and engagement portions that engage the projection portions are provided near the channel of the endoscope.

Claims

1. An endoscope treatment system comprising:

an endoscope; and

a treatment tool that has a sheath that is inserted in a channel of an insertion portion of the endoscope;

wherein projection portions that project outward from the sheath in the radial direction are provided, and

engagement portions that engage the projection portions are provided near the channel of the endoscope.

4. The endoscope treatment system according to claim 1, wherein the engagement portions are slots that engage the projection portions in an inserted state.

5. The endoscope treatment system according to claim 1, wherein the projection portions and the engagement portions rotate in conjunction with the rotation operation of the insertion portion of the endoscope.

6. The endoscope treatment system according to claim 1, wherein the projection portions freely project and retract.

7. The endoscope treatment system according to claim 1, wherein the projection portions are conductive wires to which high-frequency electricity is supplied.

2. An endoscope treatment system comprising:

an endoscope;

a cap that is attached to the distal end of an insertion portion of the endoscope in a non-rotatable manner with respect to the insertion portion; and

a treatment tool that has a sheath that is inserted in a channel of the insertion portion of the endoscope;

wherein projection portions that project outward from the sheath in the radial direction are provided, and

engagement portions that engage the projection portions are provided in the cap.

8. The endoscope treatment system according to claim 2, wherein the engagement portions are slots that engage the projection portions in an inserted state.

9. The endoscope treatment system according to claim 2, wherein the projection portions and the engagement portions rotate in conjunction with the rotation operation of the insertion portion of the endoscope.

10. The endoscope treatment system according to claim 2, wherein the projection portions freely project and retract.

11. The endoscope treatment system according to claim 2, wherein the projection portions are conductive wires to which high-frequency electricity is supplied.

12. The endoscope treatment system according to claim 2, wherein the cap is transparent.

13. The endoscope treatment system according to either claim 2, wherein the cap is formed in a tapered shape that gradually narrows toward its distal end portion.

3. An endoscope treatment system comprising:

an endoscope;

an overtube that covers an insertion portion of the endoscope; and

a treatment tool that has a sheath that is inserted in a channel of the insertion portion of the endoscope;

wherein projection portions that project outward from the sheath in the radial direction are provided, and

engagement portions that engage the projection portions are provided in the distal end of the overtube.

14. The endoscope treatment system according to claim 3, wherein the engagement portions are slots that engage the projection portions in an inserted state.

15. The endoscope treatment system according to claim 3, wherein the projection portions and the engagement portions rotate in conjunction with the rotation operation of the insertion portion of the endoscope.

16. The endoscope treatment system according to claim 3, wherein the projection portions freely project and retract.

17. The endoscope treatment system according to claim 3, wherein the projection portions are conductive wires to which high-frequency electricity is supplied.