Abstract:
A flow sensor includes a fluid chamber configured to receive a fluid. A diaphragm assembly is configured to be displaced whenever the fluid within the fluid chamber is displaced. A transducer assembly is configured to monitor the displacement of the diaphragm assembly and generate a signal based, at least in part, upon the quantity of fluid displaced within the fluid chamber.
Abstract:
A flow sensor includes a fluid chamber configured to receive a fluid. A diaphragm assembly is configured to be displaced whenever the fluid within the fluid chamber is displaced. A transducer assembly is configured to monitor the displacement of the diaphragm assembly and generate a signal based, at least in part, upon the quantity of fluid displaced within the fluid chamber.
Abstract:
The present invention includes a system and device for aiding in the diagnosis of a physiological abnormality resulting in detectable, measurable variations in contents of breathed air. The system includes a handheld unit defining an airway, wherein the airway includes a plurality of sensors adapted to measure a plurality of parameters related to the presence of a physiological abnormality. The system further includes a control unit remotely connected to the handheld unit. The control unit includes a controller adapted to receive input signals from the handheld unit and remit output signals in response thereto. The output signals are usable by a user in determining the presence or absence of a physiological abnormality. The control unit further also can include a display adapted to display the output signals to a user thereby easing the determination of the physiological abnormality. The system further includes a mouthpiece selectively connectable to the handheld unit. The mouthpiece can include a filter adapted to substantially prohibit the passage of germs into the airway of the handheld unit.
Abstract:
A rotatable door latch for a door hingedly attached the housing of a device, which in some embodiments may be a medical device for handling fluids, such as a peritoneal dialysis cycler with pump cassette. In an embodiment, the door is configured to close over an installed cassette against a front panel of the housing, the door latch configured to capture the head of a post mounted to the housing. After capturing the head of the post and rotating the door latch, a slot in the latch flanked by a ramp or cam feature slides against the post head, the ramp increasing in thickness to progressively increase the closing force between the door and the post head. Upon full closure of the door latch, a detent at the end of the slot provides a maintenance closing force between the door and the post head. The thickness of at least a portion of the detent is less than the terminal thickness of the ramp, so that a release force needed to move the detent off the post head is greater than the maintenance force between the detent and the post head.
Abstract:
A flow control device is disclosed. The flow control device includes a solenoid, the solenoid including an armature. Also, a piston connected to the armature. The piston includes a primary orifice. The piston having an open position and a closed position. A piston spring connected to the piston is also includes and at least one secondary orifice. The movement of the piston to the open position at least partially opens the at least one secondary orifice and the movement of the piston to the closed position at least partially closes the at least one secondary orifice. The movement of the armature actuates the piston movement and controls fluid flow from the primary orifice through the at least one secondary orifice.
Abstract:
A flow sensor includes a fluid chamber configured to receive a fluid. A diaphragm assembly is configured to be displaced whenever the fluid within the fluid chamber is displaced. A transducer assembly is configured to monitor the displacement of the diaphragm assembly and generate a signal based, at least in part, upon the quantity of fluid displaced within the fluid chamber.
Abstract:
A rotatable door latch for a door hingedly attached the housing of a device, which in some embodiments may be a medical device for handling fluids, such as a peritoneal dialysis cycler with pump cassette. In an embodiment, the door is configured to close over an installed cassette against a front panel of the housing, the door latch configured to capture the head of a post mounted to the housing. After capturing the head of the post and rotating the door latch, a slot in the latch flanked by a ramp or cam feature slides against the post head, the ramp increasing in thickness to progressively increase the closing force between the door and the post head. Upon full closure of the door latch, a detent at the end of the slot provides a maintenance closing force between the door and the post head. The thickness of at least a portion of the detent is less than the terminal thickness of the ramp, so that a release force needed to move the detent off the post head is greater than the maintenance force between the detent and the post head.
Abstract:
A system and method for aiding in the diagnosis of a respiratory dysfunction is described. More particularly, a system and method for aiding in the diagnosis of one or more pulmonary embolisms is described. The system and method described herein include a plurality of sensors, a thermal control system, and a controller coupled to the plurality of sensors and the thermal control system for aiding in the diagnosis of a respiratory dysfunction.