Low power consumption implantable pressure sensor
AssigneeBiocontrol Medical Ltd.
InventorsEhud Cohen, Shai Vaingast
Life of this patent
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Abstract
Pressure-measuring apparatus is provided, including a battery and a pressure transducer. The pressure transducer is adapted to be placed in a patient, and has a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f. A control unit is adapted to actuate the battery to drive current through the pressure transducer for a current-driving time period less than 0.5 p, and to sense an electrical characteristic of the pressure transducer during the current-driving time period.
Claims276
Pressure-measuring apparatus, comprising:
- a battery;
- a pressure transducer, which is adapted to be placed in a patient, the pressure transducer having a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f;
- and
- a control unit, which is adapted to actuate the battery to drive current through the pressure transducer for a current-driving time period less than 0.5 p, and to sense an electrical characteristic of the pressure transducer during the current-driving time period.
Pressure-measuring apparatus, comprising:
- a pressure transducer, which is adapted to be placed at a pressure-sensing site in a patient, the pressure transducer having a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f;
- and
- a control unit, adapted to be placed at a control-unit site at least 3 cm from the pressure-sensing site, to drive current through the pressure transducer for a current-driving time period less than 0.5 p, and to sense an electrical characteristic of the pressure transducer during the current-driving time period.
Pressure-measuring apparatus, comprising:
- a battery;
- a pressure transducer, which is adapted to be placed in a patient;
- and
- a control unit, which is adapted to actuate the battery to drive current through the pressure transducer for a current-driving time period less than 1000 microseconds, and to sense an electrical characteristic of the pressure transducer during the current-driving time period.
Pressure-measuring apparatus, comprising:
- a pressure transducer, which is adapted to be placed at a pressure-sensing site in a patient;
- and
- a control unit, adapted to be placed at a control-unit site at least 3 cm from the pressure-sensing site, to drive current through the pressure transducer for a current-driving time period less than 1000 microseconds, and to sense an electrical characteristic of the pressure transducer during the current-driving time period.
A method for measuring pressure via a pressure transducer, placed in a patient, the pressure transducer having a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f, the pressure transducer being coupled to a battery, the method comprising:
- actuating the battery to drive current through the pressure transducer for a current-driving time period less than 0.5 p;
- and
- sensing an electrical characteristic of the pressure transducer during the current-driving time period.
A method for measuring pressure via a pressure transducer, placed in a patient at a pressure-sensing site, the pressure transducer having a characteristic mechanical response bandwidth f, and a corresponding mechanical response period p equal to 1/f, the method comprising:
- from a control-unit site at least 3 cm from the pressure-sensing site, driving current through the pressure transducer for a current-driving time period less than 0.5 p;
- and
- sensing an electrical characteristic of the pressure transducer during the current-driving time period.
A method for measuring pressure via a pressure transducer, placed in a patient, the pressure transducer being coupled to a battery, the method comprising:
- actuating the battery to drive current through the pressure transducer for a current-driving time period less than 1000 microseconds;
- and
- sensing an electrical characteristic of the pressure transducer during the current-driving time period.
A method for measuring pressure via a pressure transducer, placed in a patient at a pressure-sensing site, the method comprising:
- from a control-unit site at least 3 cm from the pressure-sensing site, driving current through the pressure transducer for a current-driving time period less than 1000 microseconds;
- and
- sensing an electrical characteristic of the pressure transducer during the current-driving time period.
Dependencies are inferred from the claim text.