Abstract: In various embodiments, a cannula device includes an irrigation handpiece portion (with a first aspiration tip for aspiration and an irrigation fluid outlet for irrigation) and an aspiration handpiece portion (configured to aspirate fluid into a second aspiration tip that extends from a distal end of the aspiration handpiece portion). The cannula device is transformable between: (a) a coaxial mode in which the aspiration handpiece portion is coupled to the irrigation handpiece portion such that fluid is aspirated through the first aspiration tip and then the second aspiration tip in series and irrigation fluid is provided through the irrigation fluid outlet, and (b) a bimanual mode in which the aspiration handpiece portion is separated from the irrigation handpiece portion to provide aspiration through the second aspiration tip while the irrigation handpiece portion continues to provide irrigation fluid through the irrigation fluid outlet.

Abstract: In various embodiments, a cannula device includes an irrigation handpiece portion (with a first aspiration tip for aspiration and an irrigation fluid outlet for irrigation) and an aspiration handpiece portion (configured to aspirate fluid into a second aspiration tip that extends from a distal end of the aspiration handpiece portion). The cannula device is transformable between: (a) a coaxial mode in which the aspiration handpiece portion is coupled to the irrigation handpiece portion such that fluid is aspirated through the first aspiration tip and then the second aspiration tip in series and irrigation fluid is provided through the irrigation fluid outlet, and (b) a bimanual mode in which the aspiration handpiece portion is separated from the irrigation handpiece portion to provide aspiration through the second aspiration tip while the irrigation handpiece portion continues to provide irrigation fluid through the irrigation fluid outlet.

Abstract: A microsurgical instrument including a cutting member and a base with an actuating mechanism that provides more efficient cutting of tissue.

Abstract: A sensor dispensing instrument adapted to handle a sensor pack containing a plurality of sensors and to perform a test using one of the sensors. The sensor dispensing instrument includes an outer housing and display disposed on the outer housing for showing items. The sensor dispensing instrument further comprises a power button for turning the sensor dispensing instrument on and off, a scroll button for scroll through the items, and a select button for selecting an item.

Abstract: A microsurgical probe tip and method of using same are disclosed.

Abstract: A sensor dispensing instrument adapted to handle a sensor pack containing a plurality of sensors and to perform a test using one of the sensors. The sensor dispensing instrument includes an outer housing and display disposed on the outer housing for showing items. The sensor dispensing instrument further comprises a power button for turning the sensor dispensing instrument on and off, a scroll button for scroll through the items, and a select button for selecting an item.

Abstract: An apparatus (26) for mounting a display screen (28) to a printed circuit board (32). The display screen (28) has four edges. The apparatus (26) includes a top member (34) opposed to a bottom member (36), and first and second snap-fit members (40). The top member (34) and the bottom member (36) each form an overhang (38), wherein each overhang (38) is adapted to receive an edge (30) of the display screen (28). The first snap-fit member (40) is connected with and extended outwards from the top member (34). The second snap-fit member (40) is also connected with and extended outwards from the bottom member (36). Both the first and the second snap-fit members (40) are adapted to connect with the printed circuit board (32) for snap-fit assembly of the mounting apparatus (26) to the printed circuit board (32).

Abstract: A sensor dispensing instrument adapted to handle a sensor pack containing a plurality of sensors and to perform a test using one of the sensors, wherein the sensor dispensing instrument includes an electronics assembly for performing the test and displaying test results. The electronics assembly includes a printed circuit board having electrical components, at least one button, and a liquid crystal display mounted thereon. The electronics assembly is formed and tested prior to assembling the electronics assembly into the outer housing of the sensor dispensing instrument.

Abstract: An apparatus (26) for mounting a display screen (28) to a printed circuit board (32). The display screen (28) has four edges. The apparatus (26) includes a top member (34) opposed to a bottom member (36), and first and second snap-fit members (40). The top member (34) and the bottom member (36) each form an overhang (38), wherein each overhang (38) is adapted to receive an edge (30) of the display screen (28). The first snap-fit member (40) is connected with and extended outwards from the top member (34). The second snap-fit member (40) is also connected with and extended outwards from the bottom member (36). Both the first and the second snap-fit members (40) are adapted to connect with the printed circuit board (32) for snap-fit assembly of the mounting apparatus (26) to the printed circuit board (32).

Abstract: A gas spectrometer is provided having an enhanced capability for maintaining initial calibration conditions therewithin. The gas spectrometer is particularly apt for respiratory gas analysis applications and includes a housing assembly that defines an internal containment area(s), within which a radiation source, optical assembly, sample gas assembly and radiation detection assembly are positioned. A gas removal assembly is provided for removing one or more undesired gas component types from within the internal containment area during field use. The gas removal assembly is selectively retractable from the housing assembly to permit periodic servicing (e.g., replacement of CO.sub.2 absorbent) without requiring disassembly or recalibration of the spectrometer.

Abstract: A radiation source assembly is provided that is particularly apt for use in an anesthetic gas monitoring device (e.g., a gas spectrometer) to enhance maintenance of initial calibration conditions therewithin. In one embodiment a respiratory gas spectrometer includes a containment assembly that defines an internal containment area(s) within which a ceramic radiation source, an optical assembly, a sample gas assembly, and a radiation detection assembly are positioned. The radiation source assembly is provided for positioning and supporting the ceramic radiation source relative to the optical assembly within an internal containment area of the gas monitor. The radiation source assembly provides for enhanced sealing between the ceramic radiation source and adjoining componentry. The radiation source assembly is selectively retractable from the containment assembly to permit periodic servicing (e.g., replacement of the radiation source) without requiring disassembly of the gas spectrometer.

Abstract: An infrared spectrometer for anesthetic gas monitoring using an infrared light source is divided into two separately sealed sections. A partition wall separating the two sections contains a partition window allowing infrared light to pass from the infrared source into a sealed sample chamber. In case of a failure of the sealed sample chamber the gas does not come into contact with the infrared source, thereby minmizing the risk of possible explosion. A gasket of neoprene or butyl rubber is used to seal the two sections from one another. The signal produced by the spectrometer indicating the composition of the sample gas is monitored to alert the user of a single point failure at the seal of the sample chamber.