HIGH-DEFINITION PARTICLE DETECTION DURING CENTRIFUGATION
High-definition particle detection during centrifugation of a pharmaceutical liquid is provided. Centrifugation of fluid containers drives particles to the interior surface of the container if the particles are denser than the fluid and to the middle of the container if the particles are less dense than the fluid. The imager can then be focused directly on the particle itself for rapid identification without the need for computing complex particle trajectories. If the centrifugation of the container is carried out at an angle to the axis of symmetry of the container, particles can be driven to a single line on the interior surface of the container by the centrifugal force, making the identification of the particles even more straightforward than in two dimensions. The particle imager can also be attached to the rotating container to prevent blurring of the particle image due to the relative motion of the container and imager.
1 . A system for high-definition particle detection during centrifugation of a pharmaceutical liquid, comprising:
(a) a container filled with the pharmaceutical liquid;
(b) a light source for illuminating the pharmaceutical liquid in the container;
(c) an imaging sensor for imaging the reflected light off the pharmaceutical liquid;
(d) an optical device optically aligned with the imaging sensor to focus and magnify the reflected light off the pharmaceutical liquid onto the imaging sensor, wherein the optical device magnifies particles in the pharmaceutical liquid 2 to 20 times; and
(e) a motor, connected to the optical device, the imaging sensor and the optical device, for spinning the pharmaceutical liquid in the container and applying a centrifugal force at a certain rpm onto the particles in the pharmaceutical liquid and through the connection simultaneously spinning the optical device and the imaging sensor at the same rpm, wherein the motor spins between a 1000 to 2000 rpm, and wherein the imaging sensor images the static or dynamic behavior of the particles in the pharmaceutical liquid within the container during the application of the centrifugal force.
2 . The system as set forth in claim 1 , further comprising a mechanism for changing the angle of the container with respect to the motor during centrifugation.
3 . The system as set forth in claim 1 , wherein the container is a syringe, a vial, a cartridge or an ampoule.