Title:
MEDICAL DEVICE AND METHOD OF MANUFACTURING EXPANDABLE BODY
Document Type and Number:
WIPO Patent Application WO/2021/193761
Kind Code:
A1
Abstract:
Provided are: a medical device having an expandable body which is capable of expanding in the radial direction, is prevented from being twisted and bent in the circumferential direction, and enables effective transmission of force to a biological tissue; and a method for producing an expandable body for use in a medical device. A medical device (10) has: an outer tube (20); an expandable body (40) capable of expanding in the radial direction; and a pulling shaft (60) that protrudes from the distal end of the outer tube (20), is connected to the distal end of the expandable body (40), and is able to slide relative to the outer tube (20). The expandable body (40) has main struts (41) and sub struts (56). The main struts (41) are substantially parallel to the axis when viewed from the outside in the radial direction. The sub struts (56) have at least two joint sections each joined to two main struts (41) adjacent in the circumferential direction. At least two of the joint sections are disposed at different positions in the axial direction of the outer tube (40). The radially outermost position of the main struts (41) is located on the outer side of the radially outermost position of the sub struts (56).
Inventors:
TAKAHASHI YUSUKE (JP)
Application Number:
PCT/JP2021/012382
Publication Date:
September 30, 2021
Filing Date:
March 24, 2021
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
A61B18/14; A61B17/02
Domestic Patent References:
| WO2019189079A1 | 2019-10-03 |
Foreign References:
| JP2017104552A | 2017-06-15 | |||
| JP2010022473A | 2010-02-04 | |||
| JP2018527051A | 2018-09-20 | |||
| US20160008059A1 | 2016-01-14 |
Attorney, Agent or Firm:
YAMADA Makito (JP)
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