Various patient monitoring systems, devices, and methods are disclosed for monitoring physiological parameters of a patient. A noninvasive blood pressure monitor can include an inflatable cuff, a pressure transducer, an air pump, and a plurality of air paths connecting the inflatable cuff, the pressure transducer, and the air pump. The monitor can also include an acoustic filter provided along at least one of the air paths. In some cases, the monitor can include first and second air pumps, as well as a processor to independently control operating characteristics of the air pumps. The processor can also control the air pumps so as to provide a first inflation rate for the inflatable cuff during a non-measurement portion of an inflation phase and a second, higher inflation rate during a measurement portion of the inflation phase.

An electronic blood pressure meter according to the present invention includes: a cuff pressure control unit capable of changing a pressure of a cuff worn on a measurement site; a pressure detection unit that detects a cuff pressure signal representing the pressure of the cuff; a variation amount calculation unit that obtains a blood pressure variation amount synchronized with respiration based on the cuff pressure signal; a correspondence relation storage unit that stores a predetermined correspondence relation between a blood pressure variation amount synchronized with respiration and a heart failure index that numerically represents relative severity of heart failure and corresponds to a value of a biomarker indicating severity of heart failure; and an index output unit that refers to the correspondence relation stored in the correspondence relation storage unit and outputs the heart failure index corresponding to the blood pressure variation amount obtained by the variation amount calculation unit.

Systems and methods for electronically monitoring chest sounds and/or sensing electrical cardiac signals such as ECG signals are provided. In one embodiment, a hybrid stethdiographer has a sensing assembly with a chestpiece and a user interface. Stethdiographer also includes a conduit, a power source compartment, a pair of binaurals and a corresponding pair of earpieces. The user interface includes a record button, a mode selector and a display screen. The chestpiece includes a diaphragm and a plurality of electrical cardiac sensors.

A blood pressure monitoring device configured to attach and supply air to a blood pressure cuff can include a housing having an interior, a port configured to enable fluid communication between the interior of the housing and an interior of the blood pressure cuff, and an air intake configured to allow ambient air to enter the interior of the housing and further configured to inhibit liquids from entering the interior of the housing. The air intake can define a non-linear passageway for ambient air to enter the interior of the housing. The housing can have a first side and a first inner wall. The air intake can be defined by a first opening in the first side and a second opening in the first inner wall. The first opening can be not aligned with the second opening.

A blood pressure monitor configured to removably mount to a cuff in a substantially symmetrical position with respect to a width of the cuff can include a housing defining an interior, a first port, and a second port. The first port can: secure to a first prong of the cuff when the cuff is mounted in a first orientation; receive and secure to a second prong of the cuff when the cuff is mounted in a second orientation; and enable fluid communication between the interior and at least one of a first fluid passage within the first prong and a second fluid passage within the second prong. The second port can: secure to the second prong of the cuff when the cuff is mounted in the first orientation; and receive and secure to the first prong of the cuff when the cuff is mounted in the second orientation.

An electrocardiogram device configured to transmit at least one signal responsive to a wearer's cardiac electrical activity can include a disposable portion and a reusable portion configured to mechanically and electrically mate with each other. The disposable portion can include a base having at least one mechanical connector portion, a plurality of cables and corresponding external ECG electrodes, and a first plurality of electrical connectors associated with the plurality of cables. The reusable portion can include a cover having at least one mechanical connector portion, a second plurality of electrical connectors configured to electrically connect with the first plurality of electrical connectors of the disposable portion, and an output connector port configured to transmit at least one signal responsive to one or more signals outputted by the external ECG electrodes of the disposable portion.

An assembly for enabling a caregiver to secure a physiological monitoring device to an arm of a user can include the physiological monitoring device a cradle configured to removably secure to the physiological monitoring device and to the user's arm. The physiological monitoring device can include a first connector port configured to electrically connect to a first cable and a first locking tab movable between an extended position and a retracted position. The cradle can include a base, first and second sidewalls, a back wall connected to the base and the first and second sidewalls. The cradle can further include a first opening in the back wall configured to receive the first connector port and a second opening in the first sidewall configured to receive the first locking tab when the physiological monitoring device is secured to the cradle and the first locking tab is in the extended position.

A charging station for providing power to a physiological monitoring device can include a charging bay and a tray. The charging bay can include a charging port configured to receive power from a power source. The tray can be positioned within and movably mounted relative to the charging bay. The tray can be further configured to secure the physiological monitoring device and move between a first position and a second position. In the first position, the tray can be spaced away from the charging port, and, in the second position, the tray can be positioned proximate the charging port, thereby allowing the physiological monitoring device to electrically connect to the charging port.

An electrode is provided. The electrode includes a contact pad composed of boron-doped polycrystalline diamond (BDD); a fiber core composed of BDD extending longitudinally from the contact pad from a first end that is in direct contact with the contact pad to an opposing second end; and a polycrystalline diamond (PCD) cladding that coats and hermetically seals the contact pad and the fiber core. A first portion of the contact pad and a second portion at or near the second end of the fiber core are not coated and hermetically scaled by the PCD cladding. A method of fabricating the electrode is also provided.

The present application discloses a blood pressure measurement device, includes: a blood pressure measurement body configured to measure blood pressure based on photoplethysmogram (PPG); and a calibrator configured to measure blood pressure values based on Korotkoff sounds. The calibrator is further configured to provide initial calibration parameters to the blood pressure measurement body, and the blood pressure measurement body is further configured to collect an ECG signal and a PPG signal, calibrate a PPG parameter-blood pressure equation according to the initial calibration parameters, and calculate a blood pressure value according to the PPG parameter-blood pressure equation.