Title:
TREATMENT SYSTEM AND EXPANSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/207705
Kind Code:
A1
Abstract:
This treatment system (1) is provided with: an overtube (2) provided with an endoscope channel and a device channel; an endoscope (3); and expansion devices (4). Each expansion device is provided with: a tubular sheath which is inserted into the device channel to be movable in the longitudinal direction; a wire which is stored in the sheath and has the distal end secured to the distal end of the sheath; and an operation unit which is connected to the proximal end of the wire and moves the proximal end relative to the sheath in the longitudinal direction thereof. The sheath has a slit extending through the wall of the sheath in the radial direction over a predetermined range in the longitudinal direction. The slit has a width which allows a bending portion of the wire bent through operation of the operation unit to pass therethrough. The wire is rotatable about an axis along the longitudinal direction of the device channel in a state in which the bending portion protrudes through the slit to the outside of the sheath.
Inventors:
WAKASONE JUN (JP)
KOBAYASHI HIROYOSHI (JP)
MURATA TAKESHI (JP)
TAKEMOTO SHOTARO (JP)
KOBAYASHI HIROYOSHI (JP)
MURATA TAKESHI (JP)
TAKEMOTO SHOTARO (JP)
Application Number:
PCT/JP2018/016972
Publication Date:
October 31, 2019
Filing Date:
April 26, 2018
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B17/02
Domestic Patent References:
| WO2012114569A1 | 2012-08-30 | |||
| WO2013146727A1 | 2013-10-03 | |||
| WO2009047707A2 | 2009-04-16 |
Foreign References:
| JP2010284503A | 2010-12-24 | |||
| US20060106288A1 | 2006-05-18 |
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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