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:
Aug. 30, 2022
Filed:
Feb. 27, 2020
Terumo Kabushiki Kaisha, Tokyo, JP;
TERUMO KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A method and apparatus are disclosed for forming a drug coating layer capable of preventing breakage of elongated drug crystals on a surface of a balloon and maintaining the drug crystals in an appropriate shape in order to act on a living body. The method includes supplying a coating solution which contains the water-insoluble drug, a water-soluble additive, an organic solvent, and water to the surface of the balloon and evaporating the organic solvent and the water to form an additive layer containing the water-soluble additive and a protruding crystal having a tip end protruding from the additive layer, cutting a surplus portion protruding from the additive layer of the protruding crystal from a part surrounded by the additive layer and forming the part surrounded by the additive layer as the elongated body, and removing the cut-out surplus portion from the drug coating layer.