ENDOSCOPIC SURGERY DEVICE

• US 20160015255A1
• Filed: 09/29/2015
• Published: 01/21/2016
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: DEJIMA, Takumi
• Granted Patent: US 10,264,950 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 1/00087 Tools A61B17/00234 takes precedence
• CPC Class Codes: A61B 1/00131 Accessories for endoscopes
• CPC Class Codes: A61B 1/00133 Drive units for endoscopic tools inserted through or with the endoscope
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/00154 using guiding arrangements for insertion
• CPC Class Codes: A61B 1/0676 at distal tip of an endoscope
• CPC Class Codes: A61B 1/313 for introducing through surgical openings, e.g. laparoscopes
• CPC Class Codes: A61B 1/3132 for laparoscopy
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 2017/3409 including needle or instrument drives
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments catheters A61B2017/22072
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments
• CPC Class Codes: A61B 2090/0811 for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Abstract

An insertion part of an endoscope and an insertion part of a treatment tool, which are inserted in an outer tube, can be synchronously moved in the axial direction, and, even when the insertion part of the treatment tool is slightly moved in the axial direction, an excellent endoscopic image without shake is obtained. When a treatment tool of an endoscopic surgery device moves by a displacement amount over an allowance amount, an endoscope moves in interlock with the movement of the treatment tool. Moreover, the treatment tool 50 moves in the axial direction with the allowance amount t with respect to the endoscope 10. Therefore, when the treatment tool is moved by a displacement amount of allowance amount or less, the endoscope does not move. By providing such allowance amount, slight movement of the treatment tool is not transmitted to the endoscope.

Claims

1. An endoscopic surgery device comprising:

an endoscope including an observation unit in a distal end of a rod-shaped insertion part;

a treatment tool including an operation unit in a proximal end of a rod-shaped insertion part; and

an outer tube including an endoscope insertion path in which the insertion part of the endoscope is insertable in a back-and-forth movable manner, and a treatment tool insertion path in which the insertion part of the treatment tool is insertable in a back-and-forth movable manner,

wherein the insertion part of the endoscope inserted in the endoscope insertion path is configured to be movable back and forth with a predetermined allowance amount, in interlock with a back-and-forth movement of the insertion part of the treatment tool inserted in the treatment tool insertion path.

2. The endoscopic surgery device according to claim 1, wherein

a back-and-forth movement amount of the insertion part of the treatment tool with respect to the outer tube is 60 mm or more, and

the allowance amount in an axial direction of the insertion part of the treatment tool with respect to the insertion part of the endoscope is 10 mm to 30 mm.

3. The endoscopic surgery device according to claim 1, further comprising

a coupling member which is disposed inside the outer tube and configured to couple the insertion part of the endoscope and the insertion part of the treatment tool, wherein

the coupling member includes:

a first movable object which includes an endoscope holding member that holds the insertion part of the endoscope and is configured to move back and forth in an integral manner with the insertion part of the endoscope; and

a second movable object which includes a treatment tool holding member that holds the insertion part of the treatment tool and is configured to move back and forth in an integral manner with the insertion part of the treatment tool, and

one of the first movable object and the second movable object is configured to move back and forth with the allowance amount in interlock with a back-and-forth movement of another one of the first movable object and the second movable object.

4. The endoscopic surgery device according to claim 3, wherein

the first movable object is held to the outer tube through a first friction force, and

the second movable object holds the insertion part of the treatment tool through a second friction force larger than the first friction force, is held to the first movable object through a third friction force less than the first friction force and is slid by the allowance amount with respect to the first movable object.