Patent classifications
G01K1/26
PRESSURE SENSING UNIT, SYSTEM AND METHOD FOR REMOTE PRESSURE SENSING
A pressure sensing unit comprises a membrane and two permanent magnets inside the cavity. One magnet is coupled to the membrane, and at least one magnet is free to oscillate with a rotational movement. At least one magnet is free to oscillate with a rotational movement. The oscillation takes place at a resonance frequency, which is a function of the sensed pressure, which pressure influences the spacing between the two permanent magnets. This oscillation frequency can be sensed remotely by measuring a magnetic field altered by the oscillation. The pressure sensing unit may be provided on a catheter or guidewire.
PRESSURE SENSING UNIT, SYSTEM AND METHOD FOR REMOTE PRESSURE SENSING
A pressure sensing unit comprises a membrane and two permanent magnets inside the cavity. One magnet is coupled to the membrane, and at least one magnet is free to oscillate with a rotational movement. At least one magnet is free to oscillate with a rotational movement. The oscillation takes place at a resonance frequency, which is a function of the sensed pressure, which pressure influences the spacing between the two permanent magnets. This oscillation frequency can be sensed remotely by measuring a magnetic field altered by the oscillation. The pressure sensing unit may be provided on a catheter or guidewire.
SENSING DEVICE
A sensing device is disclosed. The sensing device comprises a housing that defines an orifice and a gel positioned within the orifice of the housing and undergoes a change in one or more attributes based on change in temperature or pressure. Further, a membrane is positioned over the orifice and in contact with the gel. The membrane is configured to be positioned in contact with an intravenous (IV) tube carrying media. Further, at least one sensing element is operationally coupled to the gel and detects the change in the one or more attributes of the gel. Thereafter, at least one processing unit is operationally coupled to the at least one sensing element and is configured to determine a temperature output and a pressure output of the media within the IV tube based on the detected change in the one or more attributes of the gel.
SENSING DEVICE
A sensing device is disclosed. The sensing device comprises a housing that defines an orifice and a gel positioned within the orifice of the housing and undergoes a change in one or more attributes based on change in temperature or pressure. Further, a membrane is positioned over the orifice and in contact with the gel. The membrane is configured to be positioned in contact with an intravenous (IV) tube carrying media. Further, at least one sensing element is operationally coupled to the gel and detects the change in the one or more attributes of the gel. Thereafter, at least one processing unit is operationally coupled to the at least one sensing element and is configured to determine a temperature output and a pressure output of the media within the IV tube based on the detected change in the one or more attributes of the gel.