Abstract: Provided is a method of testing for a leak in a fluid system. The method includes submerging at least a portion of an electrically conductive body in an electrolyte solution, with the electrically conductive body and electrolyte solution being in an internal chamber of a device. The method further includes directing an electrical signal to the electrically conductive body, causing a reaction between the electrically conductive body and the electrolyte solution to produce hydrogen. The method further includes injecting the hydrogen into the fluid system for leak detection.

Abstract: Provided is a method of testing for a leak in a fluid system. The method includes submerging at least a portion of an electrically conductive body in an electrolyte solution, with the electrically conductive body and electrolyte solution being in an internal chamber of a device. The method further includes directing an electrical signal to the electrically conductive body, causing a reaction between the electrically conductive body and the electrolyte solution to produce hydrogen. The method further includes injecting the hydrogen into the fluid system for leak detection.

Abstract: A universal leak detection method for detecting both small and large leaks. The method includes the steps of: injecting smoke and a detectable gas into a fluid system to pressurize the fluid system, the smoke and detectable gas both being capable of passing through a large leak in the fluid system, and the visual smoke particles being inhibited from passing through a small leak in the fluid system and the detectable gas being capable of passing through a small leak in the fluid system; and detecting a leak by detecting at least one of the smoke and the detectable gas, wherein detection of smoke is indicative of the fluid system having a large leak and detection of detectable gas without smoke.

Abstract: A universal leak detection method for detecting both small and large leaks. The method includes the steps of: injecting smoke and a detectable gas into a fluid system to pressurize the fluid system, the smoke and detectable gas both being capable of passing through a large leak in the fluid system, and the visual smoke particles being inhibited from passing through a small leak in the fluid system and the detectable gas being capable of passing through a small leak in the fluid system; and detecting a leak by detecting at least one of the smoke and the detectable gas, wherein detection of smoke is indicative of the fluid system having a large leak and detection of detectable gas without smoke.

Abstract: A localization needle assembly includes an outer tubular cannula and an inner needle slidably mounted for movement within the outer cannula between extended and retracted portions, the needle having a pointed tip which projects from the front end of the assembly when the needle is extended while the surgeon locates a lesion. When the tip is retracted, a barb, which is secured to the needle, is deployed through an opening in the sidewall of the outer cannula when the needle is retracted, the barb anchoring the needle assembly in body tissue in the proximity of the lesion. Detachable handles are provided for locking the inner needle and outer cannula together and to facilitate extension and retraction of the needle. In one embodiment, the outer cannula has a helical screw tip for securing the needle assembly to a body organ or body tissue.

Abstract: An apparatus and method for removing a target object from a body passageway. The apparatus comprises a catheter, a spiral wound coil disposed within the catheter and rotatably driven by an air actuated drive means, and a parachute basket. The spiral wound coil has a cutting tip at its distal end which is housed within the distal tip of the catheter and is prevented from extending outside the catheter by a grommet. In most situations, the target object is fragmented by the cutting action of the tip of the spiral wound coil as it is rotated at high speed within the catheter by the air actuated drive means. Rotation of the spiral wound coil also facilitates transport of the target fragments through the catheter lumen simultaneously with aspiration. The parachute basket is deployed downstream of the target object in order to capture any target fragments not aspirated into the catheter lumen.