Abstract: A valve seat assembly and a plug head assembly is provided herein. The valve seat may include a set of ceramic valve seat liners. The plug head assembly may include a set of ceramic plug head liners.

Abstract: A sample mount having a bottom surface, a front surface, and a second portion is disclosed. The first portion is perpendicular to the bottom surface. The second portion has an external surface and an internal surface and extends from the first portion to form a 70-degree angle relative to the bottom surface. The sample mount may also have a top surface, an opening extending through the second portion of the front surface, and a receiving area configured to receive a sample, wherein the top surface presents an unimpeded path between the sample and an SEM pole piece. The sample mount may include a spring-loaded handle configured to push the sample against the internal surface of the second portion of the front surface, wherein pushing the sample against the internal surface places the sample at the 70-degree angle relative to the bottom surface.

Abstract: A small form factor metered dose inhaler is disclosed. The inhaler includes a casing having a longitudinal axis and a transverse axis. The casing has a mouthpiece opening at one end along the longitudinal axis. The casing is configured to house a medicament canister along the longitudinal axis. The medicament canister contains a plurality of doses of a pulmonary medicament and a metered dose valve configured to release a metered dose of the pulmonary medicament through the mouthpiece opening along the longitudinal axis. A mechanical linkage translates an applied input force to the mechanical linkage into an output force along the longitudinal axis configured to actuate the metered dose valve and release the metered dose of the pulmonary medicament in a direction along the longitudinal axis. The aerosolized medicament exits the casing in a fluid flow which is symmetric in a vertical plane along the longitudinal axis.