Patent ID: 8858863

Claim:
A method for arranging a drug on an angioplasty balloon, the balloon being suitable to adopt a deployed configuration and a collapsed configuration, having an outer wall and a core defining an axis, the balloon comprising in the collapsed configuration a plurality of laps that are laid in the tangential direction about the core, the method comprising: providing a plurality of stylets arranged in an axial direction between the plurality of laps and the core of the balloon; pressing the plurality of laps in the radial direction on the core to move the balloon to the collapsed configuration while the plurality of stylets are arranged in the axial direction between the plurality of laps, wherein each stylet of the plurality of stylets comprises an underlying stylet located between each lap of the plurality of laps and the core of the balloon when each lap of the plurality of laps is located in the circumferential direction over the underlying stylet; removing the stylets from between each lap of the plurality of laps and the core of the balloon after pressing to form a cavity between each lap of the plurality of laps and the core of the balloon; filling the cavity between each lap of the plurality of laps and the core of the balloon with the drug.