Abstract: A filter assembly for filtering an exhaust gas and preventing contaminates from reaching a medical sampling instrumentation. The filter assembly comprises a hydrophobic filter media component; a first enclosure with an inlet (second) port communicating with an inwardly facing surface carrying a plurality of first channels, a first annular sidewall surrounding the first channels, and the first annular sidewall carrying a first mating feature at a free end thereof; a second enclosure having an outlet (first) port which communicating with an inwardly facing surface carrying a plurality of second channels, and a second mating feature surrounding the second channels. The first and second enclosures matingly engaging with one another so that the first and the second mating features mate with one another and the first and second enclosures define a filter chamber therebetween which captively retains the hydrophobic filter media component within the filter chamber having minimal dead space.

Abstract: An exemplary system for correcting a spinal deformity includes a plurality of transverse rods, a longitudinal rod, and at least one node. The plurality of transverse rods each includes a first end for coupling with an extension member of a spinal fixation system and a second end. The longitudinal rod extends transverse to the transverse rods. The at least one node receives the second ends of first and second transverse rods and the longitudinal rod within a receiving portion and an adjustment member selectively secures the second ends.

Abstract: An exemplary system for correcting a spinal deformity includes a plurality of transverse rods, a longitudinal rod, and at least one node. The plurality of transverse rods each includes a first end for coupling with an extension member of a spinal fixation system and a second end. The longitudinal rod extends transverse to the transverse rods. The at least one node receives the second ends of first and second transverse rods and the longitudinal rod within a receiving portion and an adjustment member selectively secures the second ends.

Abstract: An exemplary system for correcting a spinal deformity includes a plurality of transverse rods, a longitudinal rod, and at least one node. The plurality of transverse rods each includes a first end for coupling with an extension member of a spinal fixation system and a second end. The longitudinal rod extends transverse to the transverse rods. The at least one node receives the second ends of first and second transverse rods and the longitudinal rod within a receiving portion and an adjustment member selectively secures the second ends.

Abstract: A limited angulation bone screw assembly adapted to couple a spinal rod with a vertebra including a bone screw, a bushing and a housing. The pedicle screw having a shaft and an upper head portion, the upper head portion comprising a spherical surface with flats disposed on opposite sides of the upper head portion. The bushing comprising a lower rounded surface for mating with the spherical surface and flats of the upper head portion to restrict the angular movement of the bone screw. The coupled bone screw and bushing are inserted into the housing in a first orientation and then rotated to a second orientation to secure the coupled bone screw and bushing to complete the housing.