Title:
DILATOR
Document Type and Number:
WIPO Patent Application WO/2022/049688
Kind Code:
A1
Abstract:
Provided is a dilator that can maintain high torque transmission characteristics regardless of the rotation direction thereof. The dilator comprises a distal end side coil part 10 and a proximal end side coil part 20 that is disposed on the proximal end side of the distal end side coil part 10 and has a distal end section 20A that is connected to a proximal end section 10A of the distal end side coil part 10. The distal end side coil part 10 has a first coil 11 obtained by winding an element wire in a first winding direction into a hollow shape, and a second coil 12 that is provided to the outer circumference of the first coil 11 and is obtained by winding an element wire in a second winding direction that is a winding direction opposite to the first winding direction. The proximal end side coil part 20 has a third coil 21 obtained by winding an element wire in the second winding direction into a hollow shape, and a fourth coil 22 that is provided to the outer circumference of the third coil 21 and is obtained by winding an element wire in the first winding direction.
Inventors:
FUSEYA YUKIHIRO (JP)
Application Number:
PCT/JP2020/033397
Publication Date:
March 10, 2022
Filing Date:
September 03, 2020
Export Citation:
Assignee:
ASAHI INTECC CO LTD (JP)
International Classes:
A61B17/34
Domestic Patent References:
| WO2018174243A1 | 2018-09-27 |
Foreign References:
| JPH0490355U | 1992-08-06 | |||
| JP2019107326A | 2019-07-04 |
Other References:
See also references of EP 4209187A4
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
Download PDF:
Previous Patent: LAMINATE FOR IMAGE DISPLAY DEVICE AND IMAGE DISPLAY DEVICE
Next Patent: DATA PROCESSING DEVICE, DATA PROCESSING METHOD, AND PROGRAM
Next Patent: DATA PROCESSING DEVICE, DATA PROCESSING METHOD, AND PROGRAM