A method and apparatus for monitoring vital signs, such as cardiopulmonary activity, using a ballistograph are provided. The method and apparatus may be used to monitor an infant sleeping in a crib, a patient in a hospital, a person with a chronic disease at home or in professional care, or a person in an elder-care setting.

A refrigeration servicing system includes an apparatus and user equipment in electronic communication with the apparatus. The apparatus includes a body having a first end and a second end, wherein a passage extends within the body from the first end to the second end. A recess is formed within the body at the second end. The body comprises an inlet at the first end configured to directly engage with a portion of the refrigeration system, a conduit in fluid communication with the inlet, and a plunger. The conduit and plunger are each positioned in the passage. The apparatus also includes a housing at least partially positioned in the recess and in fluid communication with the conduit. The housing includes a sensor configured to directly contact the fluid and measure a parameter of the fluid. A method of servicing a refrigeration system is also provided.

A temperature-pressure integrated sensor, includes the following sequentially connected components: an electrical connecting member, a pressure sensor element, and a basal body assembly. A flexible modulation circuit board is provided between the pressure sensor element and the electrical connecting member. The pressure sensor element is directly connected to the flexible modulation circuit board. The flexible modulation circuit board is connected to a conductive extension portion. The conductive extension portion extends from a top end of the pressure sensor element to a bottom end surface of the basal body assembly. A bottom end of the conductive extension portion is provided with a temperature sensor element. The flexible modulation circuit board is coupled to the pressure sensor element and the temperature sensor element, such that the flexible modulation circuit processes and converts both a pressure signal and a temperature signal, and a temperature-pressure integrated sensor is acquired.

A pressure-measuring guidewire system includes a hollow guidewire (110) in sealed interconnection with a contained volume (102) of a connector (101). The contained volume is bordered on at least one side by a septum (103). A pressure sensor unit (122) includes a transducer (130) associated with a hollow needle (131) which can be inserted to penetrate the septum (103), thereby connecting the transducer with a column of fluid within an inner lumen of the guidewire (102). Priming of the guidewire is performed prior to use, typically by use of a syringe, prior to connection of the sensor unit, thereby protecting the transducer from damage from the priming pressure. Also disclosed is a guidewire tip configuration which provides effective fluid connection for pressure measurement while maintaining the properties of a conventional guidewire.

A single-piece conduit end cap configured to fluidly connect multiple conduits. The conduit end cap may comprise multiple apertures defined by the arms of a fitting interconnecting the apertures. The fitting may additionally comprise an opening allowing a fluid communication between the apertures and the interior of the end cap. To that end, the single-piece conduit end cap may allow the installation of various pipes without the need for additional fittings or components.

This present invention relates to a wireless pitot gauge having a pressure transducer or transmitter to record pressure readings and transmit the readings to an electronic device. The gauge attaches to a hose, pipe or conduit which connects to a water pump or inlet like a standpipe on a commercial building. The gauge has a pressure transducer and transmitter that transmits the pressure reading to an electronic device via a mobile application. The wireless pitot gauge of the present invention is useful to measure water flows from fire hose nozzles, fire hydrants, and other water-based systems.

A pressure sensor system including at least one pressure sensor unit, the pressure sensor unit being configured with at least one sensor element which is situated in a cavity of a support structure, signal processing elements being integrated into support structure, the at least one sensor element being embeddable into the support structure to form the pressure sensor unit, and the support structure being formed by a land grid array/mold premold structure (LGA/MPM). The pressure sensor unit is introduced into a sensor housing to be provided with a diaphragm and is supported therein, a residual volume of the sensor housing, which is provided with at least one diaphragm and to the wiring of which the pressure sensor unit is electrically connected, being filled with an incompressible fluid. Also described is a method for manufacturing such a pressure sensor system and a measuring device.

A pressure sensor includes a sensor diaphragm, a pressure-chamber defining member joined to a sensor diaphragm, the pressure-chamber defining member including a recess and a through hole that is open in the recess, the recess having an opening closed by the sensor diaphragm, a connecting pipe having a first end portion inserted into the through hole while being exposed to the recess and bonded to the hole with an adhesive, and a pressure transmission medium filled in the recess and the connecting pipe. A space is disposed around the first end portion of the connecting pipe, and the adhesive is not disposed at the first end portion of the connecting pipe.

A reconfigurable pressure transducer assembly having an input tube filter assembly is provided. Multiple small inlet apertures of the transducer housing or input tube filter assembly may be utilized to filter particulate matter from the measurement media/fluid. The resonant frequency and dampening characteristics of the pressure transducer assembly may be configured by the input tube filter assembly such that temporary clogging of a portion of the small inlet apertures does not appreciably affect the resonant frequency and dampening characteristics. The input tube filter assembly includes one or more inserts disposed in an input tube channel, the one or more inserts including one or more apertures of selectable dimensions and extending therethrough from a first end to a second end. The one or more inserts define at least a filter aperture, and the input tube filter assembly is tunable by selection of the selectable dimensions of the one or more inserts.

A pressure sensor manifold is provided. The pressure sensor manifold includes a fluid inlet, a fluid outlet, and a dome-shape cavity connecting with both the fluid inlet and the fluid outlet. The fluid inlet has a first interior cross-section, and the fluid outlet has a second interior cross-section. The dome-shape cavity has an apex. A line that is tangential to the apex passes through a plurality of points on both the first interior cross-section of the fluid inlet and the second interior cross-section of the fluid outlet.