Abstract: An insertion catheter for a circulatory support catheter having a circulatory support device carried by an elongate flexible catheter shaft. The insertion catheter comprises a tubular body with a distal portion configured to axially movably receive the circulatory support device. A diameter of the distal portion is greater than a diameter of a mid portion of the tubular body. The insertion catheter may be inserted into an introducer sheath for delivery of the MCS device. A distal end of the insertion catheter may be located distally of a distal end of the introducer sheath and distally of the arterial bifurcation. The distal portion of the insertion catheter containing the MCS device may be located distally of the bifurcation, with a distal end of the MCS device slightly offset from the distal end of the tubular body.

Abstract: A medical device delivery system can comprise a delivery catheter and an in-line sheath, the delivery catheter being preloaded within the in-line sheath. The delivery catheter can comprise a catheter hub and a catheter shaft. The catheter shaft can comprise a proximal portion extending distally from the hub and slidably receiving a proximal narrow portion of a medical device, and a distal portion slidably receiving a distal wide portion of a medical device. The in-line sheath can comprise a sheath hub and a sheath shaft. The sheath shaft can comprise a proximal portion extending distally from the sheath hub and slidably receiving at least a portion of the proximal portion of the catheter shaft, and an expandable distal portion slidably receiving the distal portion of the catheter shaft.

Abstract: An air valve assembly (10) includes a main housing (12) including a coupling flange (14) for coupling to a pipe, and an air valve (20) fluidly coupled to the main housing (12). An actuator (28) is in fluid communication with the air valve (20) and a discharge tube (40). A non-contact liquid level sensor (30) is located in an external housing coupled to the main housing (12). The non-contact liquid level sensor (30) is in operative communication with the actuator (28).

Abstract: An introducer sheath can be used to safely introduce a delivery apparatus into a patient’s vasculature (e.g., via the femoral artery). It is advantageous to visualize the placement of an introducer sheath within the vasculature using an imaging system. The sheaths disclosed herein include radiopaque features that assist with imaging without sacrificing the low profile, expandability, and other advantageous aspects of the introducer sheath.

Abstract: An air valve assembly (10) includes a main housing (12) including a coupling flange (14) for coupling to a pipe, and an air valve (20) fluidly coupled to the main housing (12). An actuator (28) is in fluid communication with the air valve (20) and a discharge tube (40). A non-contact liquid level sensor (30) is located in an external housing coupled to the main housing (12). The non-contact liquid level sensor (30) is in operative communication with the actuator (28).

Abstract: A coupler assembly includes a fluid fitting formed with a first bore at one end thereof and a second bore at an opposite end thereof, both of the bores being formed with female threads. A fluid adaptor includes a neck portion ending in a terminal portion larger in diameter than the neck portion. A fitting ring secures the fluid adaptor to the fitting. The fitting ring includes a split ring that fits over the terminal portion. The fitting ring is formed with a male thread, which mates with the female thread of the second bore of the fitting. The fitting ring has a first inner portion with a flat annular shape and a second inner portion with a curved annular shape.

Abstract: A valve assembly includes a valve installed in a fluid/liquid supply line, and a water circulation pipe that has a first end in fluid communication with a water supply line and a second end in fluid communication with an inner volume of the valve. Some water flowing in the water supply line is diverted through the water circulation pipe and circulates in the valve. The water that is diverted through the water circulation pipe and circulates in the valve has a sufficient flow to prevent freezing and/or water stagnation in the valve.

Abstract: A coupler assembly includes a fluid fitting formed with a first bore at one end thereof and a second bore at an opposite end thereof, both of the bores being formed with female threads. A fluid adaptor includes a neck portion ending in a terminal portion larger in diameter than the neck portion. A fitting ring secures the fluid adaptor to the fitting. The fitting ring includes a split ring that fits over the terminal portion. The fitting ring is formed with a male thread, which mates with the female thread of the second bore of the fitting. The fitting ring has a first inner portion with a flat annular shape and a second inner portion with a curved annular shape.

Abstract: A valve assembly includes a valve installed in a fluid/liquid supply line, and a water circulation pipe that has a first end in fluid communication with a water supply line and a second end in fluid communication with an inner volume of the valve. Some water flowing in the water supply line is diverted through the water circulation pipe and circulates in the valve. The water that is diverted through the water circulation pipe and circulates in the valve has a sufficient flow to prevent freezing and/or water stagnation in the valve.

Abstract: A valve comprising a housing and a pressure responsive sealing assembly. The housing comprises an inlet port, an outlet port and a control chamber extending therebetween. The control chamber having a first cross-sectional area at the inlet port, and a second cross-sectional area greater in magnitude than the first cross-sectional area and being disposed between the inlet port and the outlet port. The pressure responsive sealing assembly is normally biased into a first position in which the sealing assembly seals the inlet port. When a pressure differential about the inlet and outlet ports exceeds a predetermined threshold, the pressure responsive sealing assembly is configured to shift from the first position to a second position, in which the sealing assembly no longer seals the inlet port and a fluid flow path from the inlet port into the control chamber is opened.