DEVICE FOR SURGICAL PROCEDURES

• US 20080154091A1
• Filed: 12/22/2006
• Published: 06/26/2008
• Est. Priority Date: 12/22/2006
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Medical Systems Corporation (Olympus Corporation)
• Inventors: MINOSAWA, Ryo, DEJIMA, Takumi, KOGASAKA, Takahiro
• Granted Patent: US 8,292,801 B2
• Time in Patent Office: Days
• US Class Current: 600/104
• CPC Class Codes: A61B 1/00087 Tools A61B17/00234 takes precedence
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/05 characterised by the image sensor, e.g. camera, being in the distal end portion
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 2017/00199 with a console, e.g. a control panel with a display
• CPC Class Codes: A61B 2017/00296 mounted on an endoscope
• CPC Class Codes: A61B 2017/00314 Separate linked members
• CPC Class Codes: A61B 2017/00738 part of the tool being offset with respect to a main axis, e.g. for better view for the surgeon
• CPC Class Codes: A61B 2017/2906 Multiple forceps
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2090/067 for measuring angles
• CPC Class Codes: A61B 2090/3614 using optical fibre

Abstract

A surgical treatment apparatus according to the present invention includes an outer sheath, extending from a base portion subject to an operator'"'"'s hand to the tip subject to insertion into a body cavity, that is provided with a working channel through which a treatment instrument can be passed; an image pickup device disposed at the tip portion of the outer sheath; and pivotable forceps disposed at the tip portion of the outer sheath, supported on a supporting section protruding in the axial direction via a joint being bent away from the working channel, and having a pair of forceps members arranged so as to be freely opened/closed, wherein the image pickup device is disposed at a position between the axis line of the supporting section and the axis line of the working channel and offset from an imaginary line connecting the two axis lines.

Claims

1. A surgical treatment apparatus comprising:

an outer sheath, extending from a base portion subject to an operator'"'"'s hand to the tip subject to insertion into a body cavity, that is provided with a working channel through which a treatment instrument can be passed;

an image pickup device disposed at the tip portion of the outer sheath, and

pivotable forceps disposed at the tip portion of the outer sheath, supported on a supporting section protruding in the axial direction via a joint being bent away from the working channel, and having a pair of forceps members arranged so as to be freely opened/closed, wherein

the image pickup device is disposed at a position between the axis line of the supporting section and the axis line of the working channel and offset from an imaginary line connecting the two axis lines.

2. The surgical treatment apparatus according to claim 1, wherein

the supporting section is passed through the outer sheath so as to be incapable of extending from or retracting into the outer sheath but capable of freely rotating with respect to the outer sheath.

3. The surgical treatment apparatus according to claim 2, wherein

a first operation member for bending the joint,

a second operation member for rotating the supporting section around the axis line, wherein

the supporting section is disposed so as to be offset from the axis of the outer sheath, and the first operation member and the second operation member are provided concentrically with the axis of the outer sheath so as to freely rotate.

4. The surgical treatment apparatus according to claim 1, wherein

a rotation detector for detecting the amount of rotation when the outer sheath is rotated around the axis line, and

a correction device, to which detection results obtained by the rotation detector are input, for correcting an image taken using the image pickup device to cancel the amount of rotation of the outer sheath so that a corrected image can be displayed on a monitor.

5. The surgical treatment apparatus according to claim 1, wherein

the image pickup device is provided so as to freely extend/retract with respect to the outer sheath, and the base portion of the outer sheath is provided with an extending/retracting operation section for extending/retracting the image pickup device.

6. The surgical treatment apparatus according to claim 5, wherein

the extending/retracting operation section has a mounting section mountable on the treatment instrument that is passed through the working channel and a connection member for guiding the movement of the mounting section with respect to the outer sheath.

7. The surgical treatment apparatus according to claim 6, wherein

a contact section provided along the movement path of the extending/retracting operation section so that the movement range of the image pickup device is located closer to the base portion than the position of the pair of forceps members.

8. The surgical treatment apparatus according to claim 6, wherein

a switching device for switching between the interlock of the extending/retracting operation of the treatment instrument passed through the working channel and the extending/retracting operation of the mounting section and the non-interlock of the extending/retracting operations.

11. The surgical treatment apparatus according to claim 8 or 9, wherein

the pivotable forceps are rotatable with respect to the outer sheath and the treatment instrument.

9. A surgical treatment apparatus comprising:

an outer sheath, extending from a base portion subject to an operator'"'"'s hand to the tip subject to insertion into a body cavity, that is provided with a working channel through which a treatment instrument can be passed;

an image pickup device disposed at the tip portion of the outer sheath and being movable to a position offset from the axis line of the outer sheath,

pivotable forceps passed through the outer sheath so as to freely extend/retract and provided with a pair of forceps members arranged so as to be freely opened/closed and freely bent up in a direction substantially orthogonal to the opening/closing direction thereof, and

a treatment instrument arranged so as to be freely protruded from and sunk into an opening formed in the sheath of the pivotable forceps and used to treat tissue inside the body when the forceps members are bent up.

10. The surgical treatment apparatus according to claim 9, wherein

the image pickup device is secured to a rotation rod passed through the outer sheath, the rotation rod is passed through at a position offset from the axis line of the outer sheath, and an operation section for rotating the rotation rod is provided on the hand side of the operator.