Apparatus and methods for non-invasively measuring a patient's arterial blood pressure
First Claim
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1. A sensor assembly adapted to sense a hemodynamic parameter from a living subject, comprising:
- a substantially conformal frame; and
a sensor element, said sensor element being encircled by a flexible and resilient suspension loop and coupled to said frame via one or more suspending arms extending from said suspension loop;
wherein said sensor element further comprises an electrical interface, and said sensor element is configured so as to form an electrical connection with a corresponding electrical interface of a host device simultaneously during mating of said sensor element to said host device.
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Abstract
Improved apparatus and methods for non-invasively assessing one or more hemodynamic parameters associated with the circulatory system of a living organism. In one aspect, the invention comprises an apparatus adapted to automatically and accurately place and maintain a sensor (e.g., tonometric pressure sensor) with respect to the anatomy of the subject. The apparatus comprised of a sensor device removably coupled to an actuator which is used to position the sensor during measurements. Methods for positioning the alignment apparatus and sensor, and operating the apparatus, are also disclosed.
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Citations
20 Claims
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1. A sensor assembly adapted to sense a hemodynamic parameter from a living subject, comprising:
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a substantially conformal frame; and a sensor element, said sensor element being encircled by a flexible and resilient suspension loop and coupled to said frame via one or more suspending arms extending from said suspension loop; wherein said sensor element further comprises an electrical interface, and said sensor element is configured so as to form an electrical connection with a corresponding electrical interface of a host device simultaneously during mating of said sensor element to said host device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of sensing one or more hemodynamic parameters of a living subject, said method comprising:
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disposing at least one sensor element on said subject, said sensor element being encircled by a suspension loop which is coupled to a substantially conformal frame via at least one flexible suspending arm extending therefrom; mating said sensor element to a host device, said mating further comprising mating of an electrical interface of said sensor element to a corresponding electrical interface of said host device; using said host device to automatically position said sensor element at a prescribed monitoring location, and calibrate said sensor element; and measuring said one or more parameters of said subject using said calibrated sensor element; wherein said mating of said host device with said sensor element comprises simultaneously forming both electrical and mechanical connections. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A sensor assembly adapted to sense a hemodynamic parameter from a living subject, comprising:
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a frame configured to substantially conform to an anatomy of said living subject when applied thereto; a flexible suspension apparatus, said suspension apparatus comprising a loop feature and at least one suspending arm configured to extend therefrom and attach to said frame; and a sensor element, said sensor element coupled to said frame via said flexible suspension apparatus such that an entirety of said sensor element is encircled by said loop feature thereof and held to said frame via said at least one suspending arm, said sensor element further comprising a plurality of electrical conductors exposed on at least one surface thereof; wherein said plurality of electrical conductors are disposed on said surface of said sensor element so as to enable said sensor element to form an electrical connection with a corresponding electrical interface of a host device during mating of said sensor element to said host device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification