Abstract: An optical coherence tomography scanning system traverses its respective scan pattern quickly, typically completing an entire two-dimensional frame faster than a conventional raster scanner completes one raster line segment. To traverse the scan pattern quickly, the system takes fewer A-scans per length of scan pattern than a conventional OCT scanner. To compensate for the sparsity of the sample points along the respective scan line segments, and for gaps between respective line segments of the trajectory, the system acquires and combines several partially overlapping frames for each study.

Abstract: Bone fixation devices, assemblies, and methods are provided. An expandable bone fixation implant can be implanted into a patient and attached to an underlying bone via a percutaneous or alternative fixation procedure in order to provide fixation and stabilization of the underlying bone.

Abstract: Bone fixation devices, assemblies, and methods are provided. An expandable bone fixation implant can be implanted into a patient and attached to an underlying bone via a percutaneous or alternative fixation procedure in order to provide fixation and stabilization of the underlying bone.

Abstract: Embodiments of the invention provide a method for monitoring and controlling delivery of a precursor from an ampoule in a process chamber. In one embodiment, the method provides flowing a first carrier gas at a first flow rate through a vessel containing a chemical precursor to form a first precursor gas, combining a second carrier gas at a second flow rate and the first precursor gas to form a second precursor gas, measuring a concentration of the chemical precursor within the second precursor gas, and calculating a mass flow rate of the chemical precursor. In one example, a tantalum-containing film is deposited on a substrate during an atomic layer deposition process by heating an ampoule containing pentakis(dimethylamido) tantalum to a temperature within a range from about 60° C. to about 75° C., and forming a precursor gas by flowing a carrier gas through the ampoule.

Abstract: A method and apparatus for a gas delivery system to deliver a precursor from a vessel to a process chamber via a process gas produced by flowing a first carrier gas into the vessel and combining with a second carrier gas flowing through a bypass around the vessel and a precursor monitoring apparatus disposed between the process chamber and the vessel. The precursor monitoring apparatus has a gas analyzer to generate a first signal indicative of a concentration of the precursor in the process gas or to a signal indicative of a flow rate of the process gas.