Blood pressure monitor with valve-chamber assembly

A blood pressure measurement system configured to measure blood pressure of a wearer of an inflatable cuff, the system comprising:

• a piston located within a gas pathway of a valve, wherein a flow rate of gas through the gas pathway to an inflatable cuff changes as a location of the piston within the gas pathway changes;
• a bar lever located to restrict movement of the piston in a first direction;
• a motor coupled to an actuator that is coupled to the bar lever, wherein rotation of the motor causes at least a portion of the actuator of extend or retract to vary a location of the bar lever;
• and
• one or more processors in communication with the motor and configured to:
• receive pressure data from a pressure sensor associated with the inflatable cuff, the inflatable cuff configured to encompass a limb of a patient, and
• based at least in part on a determination that the pressure data satisfies a blood pressure measurement threshold, actuate the motor to move the bar lever in the first direction or a second direction,
• wherein movement of the bar lever in the first direction causes the piston to move in the first direction thereby increasing the flow rate of the gas through the gas pathway,
• wherein movement of the bar lever in the second direction causes the piston to move in the second direction thereby decreasing the flow rate of the gas through the gas pathway.

A method of measuring blood pressure of a wearer of an inflatable cuff, the method comprising:

• receiving pressure data from a pressure sensor associated with an inflatable cuff, the inflatable cuff encompassing a limb of a patient and configured to receive gas through a gas pathway of a valve, the valve including a piston located within the gas pathway, wherein a flow rate of the gas through the gas pathway to the inflatable cuff changes as a location of the piston within the gas pathway changes;
• determining that the pressure data satisfies a blood pressure measurement threshold;
• and
• based at least in part on said determining, actuating a motor that is coupled to an actuator that is coupled to the bar lever, the bar lever located to restrict movement of the piston in a first direction, wherein actuation of the motor causes at least a portion of the actuator of extend or retract to vary a location of the bar lever,
• wherein movement of the bar lever in the first direction causes the piston to move in the first direction thereby increasing the flow rate of the gas through the gas pathway,
• wherein movement of the bar lever in the second direction causes the piston to move in the second direction thereby decreasing the flow rate of the gas through the gas pathway.