Endoscopic treatment instrument and endoscope system

• US 20070288035A1
• Filed: 06/06/2007
• Published: 12/13/2007
• Est. Priority Date: 06/09/2006
• Status: Abandoned Application

• Current Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Original Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Inventors: Okada, Tstutomu
• Application Number:
  US11/810,525
• Publication Number:
  US 20070288035A1
• Time in Patent Office: Days
• US Class Current: 606/113
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• 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 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2018/1407 Loop

Abstract

A high frequency snare is provided with a snare loop; a control rod of flat plate shape with a cross-section having a long axis direction and a short axis direction; a distal end side connecting member in which a proximal end of the snare loop and a distal end of the control rod are inserted; and a control wire which is elongated in an axial direction of the control rod and connected to the control rod through a proximal end side connecting member. The distal end side connecting member is provided with a first opening end surface in the axial direction. The first opening end surface is formed with inclined surfaces which intersect the axial direction of the control rod and the short axis direction of the cross-section of the control rod and are parallel with the long axis direction of the cross-section of control rod.

Claims

1. An endoscopic treatment instrument comprising:

a treating portion for carrying out a predetermined treatment with respect to the body;

a control rod of flat plate shape with a cross-section having a long axis direction and a short axis direction; and

a distal end side connecting member in which a proximal end of the treating portion and a distal end of the control rod are both inserted and through which the treating portion and the control rod are connected;

wherein the distal end side connecting member is provided with a first opening end surface and a second opening end surface in the axial direction of the control rod; and

wherein at least one of the first opening end surface and the second opening end surface is formed with an inclined surface of generally flat shape which intersects the axial direction of the control rod and the short axis direction of the cross-section of the control rod and are parallel with the long axis direction of the cross-section of control rod.

2. The endoscopic treatment instrument as recited in claim 1, wherein either of the first opening end surface and the second opening end surface is connected to the control rod and has a flat shape with a long axis direction and a short axis direction.

3. The endoscopic treatment instrument as recited in claim 1, wherein the connecting member is of flat shape with a cross-section having a long axis direction and a short axis direction.

4. The endoscopic treatment instrument as recited in claim 1, wherein the treating portion (10) is a snare loop to bind the tissue of the body.

9. An endoscope system comprising:

an endoscopic treatment instrument as recited in claim 1; and

an endoscope including a channel which has an opening at its distal end and in which the endoscopic treatment instrument is received so as to extend and retract through the distal end opening, and a forceps raising unit which is disposed in the vicinity of the distal end of the channel and controls a protruding direction of the endoscopic treatment instrument.

5. An endoscopic treatment instrument comprising:

a treating portion for carrying out a predetermined treatment with respect to the body;

a control rod of flat plate shape with a cross-section having a long axis direction and a short axis direction which is connected to a proximal end of the treating portion;

a control member which is elongated in an axial direction of the control rod and applies a drive force in the axial direction;

a proximal end side connecting member in which a distal end of the control member and a proximal end of the control rod are both inserted and through which the control member and the control rod are connected;

wherein the proximal end side connecting member is provided with a first opening end surface and a second opening end surface in the axial direction of the control rod; and

wherein at least one of the first opening end surface and the second opening end surface is formed with an inclined surface of generally flat shape which intersects the axial direction of the control rod and the short axis direction of the cross-section of the control rod and are parallel with the long axis direction of the cross-section of control rod.

6. The endoscopic treatment instrument as recited in claim 5, wherein either of the first opening end surface and the second opening end surface is connected to the control rod and has a flat shape with a long axis direction and a short axis direction.

7. The endoscopic treatment instrument as recited in claim 5, wherein the connecting member is of flat shape with a cross-section having a long axis direction and a short axis direction.

8. The endoscopic treatment instrument as recited in claim 5, wherein the treating portion (10) is a snare loop to bind the tissue of the body.

10. An endoscope system comprising:

an endoscopic treatment instrument as recited in claim 5; and

an endoscope including a channel which has an opening at its distal end and in which the endoscopic treatment instrument is received so as to extend and retract through the distal end opening, and a forceps raising unit which is disposed in the vicinity of the distal end of the channel and controls a protruding direction of the endoscopic treatment instrument.