The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
Feb. 28, 2023
Asahi Intecc Co., Ltd., Seto, JP;
Yukihiro Fuseya, Seto, JP;
ASAHI INTECC CO., LTD., Seto, JP;
Abstract
A dilator includes a distal end side coil part, and a proximal end side coil part located at a proximal end side of the distal end side coil part and having a distal end portion connected to a proximal end portion of the distal end side coil part. The distal end side coil part includes a first coil having a wire wound in a first winding direction, and a second coil provided on an outer periphery of the first coil and having a wire wound in a second winding direction that is opposite to the first winding direction. The proximal end side coil part includes a third coil having a wire wound in the second winding direction, and a fourth coil provided on an outer periphery of the third coil and having a wire wound in the first winding direction.