Title:
MEDICAL DEVICE AND SHUNT FORMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/071168
Kind Code:
A1
Abstract:
Provided are: a medical device and a shunt formation method capable of cauterizing biological tissue uniformly in the thickness direction and preventing the biological tissue to be cauterized from being heated locally. The present invention is provided with: an expandable body 21 that can expand and contract radially; an elongated shaft part 20 having a distal end section 30 including a base end fixing portion 31 to which the base end of the expandable body 21 is fixed; and a plurality of electrode parts 22 provided along the expandable 21. When expanding, the expandable body 21 has a recess 51 that is recessed radially inward and defines a reception space 51b capable of receiving a biological tissue. The recess 51 has a bottom 51a positioned radially innermost, a base end-side standing part 52 extending radially outward from the base end of the bottom 51a, and a distal end-side standing part 53 extending radially outward from the distal end of the bottom 51a. Of two electrode parts 22 adjacent in the circumferential direction, one is disposed on the base end-side standing part 52 and the other is disposed on the distal end-side standing part 53.
Inventors:
TAKAHASHI YUSUKE (JP)
Application Number:
PCT/JP2021/035233
Publication Date:
April 07, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
A61B18/14
Domestic Patent References:
| WO2019009254A1 | 2019-01-10 | |||
| WO2019188916A1 | 2019-10-03 |
Foreign References:
| US20080281312A1 | 2008-11-13 | |||
| CN111166463A | 2020-05-19 |
Attorney, Agent or Firm:
YAMADA Makito (JP)
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