Disposable non-invasive blood pressure sensor
First Claim
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1. A non-invasive blood pressure measurement device for determining blood pressure of an artery, the device comprising:
- a housing unit comprising a plurality of electrical components;
a reusable base unit pivotally coupled to the housing unit, the base unit including electrical circuitry interconnected with the electrical components of the housing unit;
a disposable sensing unit for sensing pulses of the underlying artery, the sensing unit being detachably connected to the base unit and comprising a pressure transducer detachably interconnected to the electrical circuitry of the base unit.
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Abstract
A sensor interface assembly is used with a blood pressure measurement device to determine blood pressure of an underlying artery. The sensor interface assembly includes a base unit, a sensing unit and means for detachably connecting the sensing unit to the base unit. The base unit is pivotally attached to the blood pressure measurement device. The sensing unit includes sensing means for sensing blood pressure of each pulse as each pulse travels beneath the sensing means. The means for detachably connecting mechanically and electrically couple the sensing unit to the base unit.
46 Citations
17 Claims
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1. A non-invasive blood pressure measurement device for determining blood pressure of an artery, the device comprising:
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a housing unit comprising a plurality of electrical components;
a reusable base unit pivotally coupled to the housing unit, the base unit including electrical circuitry interconnected with the electrical components of the housing unit;
a disposable sensing unit for sensing pulses of the underlying artery, the sensing unit being detachably connected to the base unit and comprising a pressure transducer detachably interconnected to the electrical circuitry of the base unit. - View Dependent Claims (2, 3)
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4. A non-invasive blood pressure measurement device for determining blood pressure of an artery, the device comprising:
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a housing unit including a receptacle; and
a disposable pressure sensor for non-invasively sensing blood pressure pulses in an artery, the pressure sensor comprising a pressure transducer and being detachably connected to the housing unit, the pressure sensor including a plug for mechanical and electrical connection to the receptacle, and the pressure transducer being detachably electrically connection to the housing unit through the plug and the receptacle. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A non-invasive blood pressure measurement device for determining blood pressure of an artery, the device comprising:
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a housing unit;
a receptacle interconnected with the housing unit; and
a disposable pressure sensing unit detachably connected to the housing unit, the pressure sensing unit comprising a pressure transducer for sensing pulses of the artery and a plug for mechanically and electrically coupling the pressure sensing unit to the receptacle, the pressure transducer being detachably electrically connected to the housing unit through the plug and the receptacle. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A disposable sensing unit for sensing blood pressure in an underlying artery, comprising:
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a pressure transducer having a sensing surface;
an active volume having an active surface of a diameter greater than a diameter of the underlying artery, the sensing surface of the pressure transducer being mounted to the active volume for receiving pressure pulses from the underlying artery through the active surface and the active volume; and
a compressible side wall surrounding the active surface and the active volume for conforming to anatomy surrounding the underlying artery.
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Specification