Canadian Blood Services

Keddie Brown

Elisabeth Maurer

Georg Maurer

Paul Charlebois

Kenneth Maccallum

Gyasi Bourne

There is described a sample holder and associated fluid container assembly for optical analysis of a fluid sample within a translucent container of the fluid container assembly. The sample holder includes clamping members rotatably mounted to a frame for rotation, about parallel axes spaced apart from each other, between a container accepting position in which the clamping members are spaced apart from the translucent container, and an analysis position in the clamping members abut the translucent container. The clamping members each define an optical waveguide slot extending therethrough that is substantially aligned with the translucent container when the clamping members are disposed in the analysis position, to thereby provide optical access to the translucent container for optical analysis of the fluid sample therein.

Sample holder for dynamic light scattering

A sample holder holds various sizes of capillaries or cuvettes for use in dynamic light scattering (DLS) or quasi-elastic light scattering (QELS), such as in DLS of fluid samples such as platelet solutions, whole blood, colloids or the like. The sample holder has a base with a stationary backing member and a sliding, rail-mounted clamping member that is magnetically biased toward the backing member. The sample holder has Peltier-type thermoelectric heating/cooling elements that extend the full height of the clamping and backing members to optimize heat transfer efficiency. The sample holder further includes horizontal slots that enable collection of scattered light from various angles around the device. Finned heat sinks are mounted above and below the horizontal slots on the outwardly facing surfaces of the backing and clamping members to stabilize the temperature of the fluid sample in the sample holder without interfering with incident or scattered light.

Growing community of inventors

Vancouver, Canada

Keddie Brown