US 11,841,327 B2
Detection and characterization of defects in pharmaceutical cylindrical containers
Daniel Willmes, Langrickenbach (CH)
Assigned to SCHOTT PHARMA SCHWEIZ AG, St. Gallen (CH)
Filed by SCHOTT PHARMA SCHWEIZ AG, St. Gallen (CH)
Filed on Jan. 25, 2021, as Appl. No. 17/157,080.
Claims priority of application No. 20153330 (EP), filed on Jan. 23, 2020.
Prior Publication US 2021/0231576 A1, Jul. 29, 2021
Int. Cl. G01N 21/892 (2006.01); G01N 21/89 (2006.01)
CPC G01N 21/892 (2013.01) [G01N 21/8901 (2013.01); G01N 21/8914 (2013.01); G01N 2021/8905 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for inspecting a pharmaceutical cylindrical container made of a polymer and detecting slides in the polymer, comprising:
a support device configured to support the pharmaceutical cylindrical container and rotate the cylindrical pharmaceutical container around a longitudinal axis;
a light emitting unit comprising a light source configured to illuminate the pharmaceutical cylindrical container with an inspection beam having a wavelength from 100 nm to 400 nm to stimulate photoluminescence of the of the pharmaceutical cylindrical container; and
a light receiving unit that is configured to detect slides in the polymer, the light receiving unit comprising a filter that blocks light having a wavelength of 600 nm or more and a camera that receives light emitted by the pharmaceutical cylindrical container due to the photoluminescence and acquires an image of the pharmaceutical cylindrical container,
wherein the polymer is a cycloolefin copolymer (COC) or a cycloolefin polymer (COP).