US 12,127,927 B2
Medical tool
Hidetoshi Matsunami, Gifu-ken (JP)
Assigned to SOSAIKOUSEIKAI CLINICAL FOUNDATION MATSUNAMI RESEARCH PARK, Gifu-ken (JP)
Appl. No. 17/285,467
Filed by SOSAIKOUSEIKAI CLINICAL FOUNDATION MATSUNAMI RESEARCH PARK, Gifu-ken (JP)
PCT Filed Oct. 16, 2019, PCT No. PCT/JP2019/040546
§ 371(c)(1), (2) Date Apr. 14, 2021,
PCT Pub. No. WO2020/080379, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 2018-197272 (JP), filed on Oct. 19, 2018.
Prior Publication US 2021/0378812 A1, Dec. 9, 2021
Int. Cl. A61F 2/04 (2013.01); A61F 5/00 (2006.01); A61M 27/00 (2006.01)
CPC A61F 2/04 (2013.01) [A61F 5/0076 (2013.01); A61M 27/002 (2013.01); A61F 2002/045 (2013.01); A61F 2210/0019 (2013.01); A61F 2220/0016 (2013.01); A61M 2210/1053 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a medical tool configured for placement in a digestive tract lumen; and
a balloon catheter configured to be used for the medical tool,
the medical tool comprising:
at least one tubular portion opening at two ends; and
at least one attachment portion configured to be fixed to at least a part of the tubular portion and be capable of installing the tubular portion in the digestive tract lumen, wherein
the tubular portion is configured to:
be placeable along at least a part of a digestive tract;
include a side surface, at least a part of which is capable of conforming to a shape of an inner wall of the digestive tract; and
allow a part of digestive juice or digested contents to permeate, the attachment portion is made of a metal mesh and configured to be placeable in a stomach through a mouth,
the attachment portion has a tubular shape when collapsed and is configured to be deformed into a trumpet shape or a funnel shape so as to be pressed around the pylorus when deployed,
the balloon catheter includes:
a retaining balloon configured to be disposed outside the attachment portion to engage a first end of the attachment portion; and
a dilation balloon configured to be disposed inside the attachment portion,
the retaining balloon is configured to be inflated so that the attachment portion does not fall out of the balloon catheter, and
the dilation balloon is configured to be inflated to push and expand a second end of the attachment portion, thereby deforming the attachment portion into the trumpet shape or the funnel shape.