Device for acquiring physiological variables measured in a body
First Claim
1. An eavesdropping system for acquiring a measured physiological variable of an individual, said eavesdropping system comprising:
- an aortic pressure sensor configured to measured aortic blood pressure and provide a signal representing measured aortic blood pressure;
a central monitoring device configured to be located external to said individual and configured to receive the signal representing measured aortic blood pressure;
a wired aortic channel extending from the aortic pressure sensor to the central monitoring device;
a communication interface configured to be arranged along the wired aortic channel; and
a receiver configured to receive a measured aortic blood pressure signal, the receiver being in a housing separate from the communication interface,wherein the communication interface is configured to perform at least one of;
(i) electrically tapping into a conductor of the wired aortic channel at a location between the aortic pressure sensor and the central monitoring device without affecting the signal carried over the wired aortic channel, and(ii) sensing at least one of a magnetic field and an electric field in the vicinity of the wired aortic channel that is created by the signal passing through a conductor of the wired aortic channel at a location between the aortic pressure sensor and the central monitoring device without affecting the signal carried over the wired aortic channel,wherein the communication interface is configured to transmit the measured aortic blood pressure signal to the receiver, via a wireless connection between the communication interface and the receiver.
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Accused Products
Abstract
An eavesdropping arrangement for acquiring a measured physiological variable of an individual includes a receiver and a communication interface in a housing separate from the receiver. The communication interface is positioned along a communication link between a first sensor, which is configured to measure aortic blood pressure and to provide a signal representing measured aortic blood pressure, and a central monitoring device configured to monitor the measured aortic blood pressure. The communication interface includes a high impedance connection to the communication link that permits the communication interface to eavesdrop on the signal representing measured aortic blood pressure such that information representing measured aortic blood pressure is sent to the receiver while allowing the central monitoring device to receive and use the signal representing measured aortic blood pressure.
35 Citations
16 Claims
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1. An eavesdropping system for acquiring a measured physiological variable of an individual, said eavesdropping system comprising:
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an aortic pressure sensor configured to measured aortic blood pressure and provide a signal representing measured aortic blood pressure; a central monitoring device configured to be located external to said individual and configured to receive the signal representing measured aortic blood pressure; a wired aortic channel extending from the aortic pressure sensor to the central monitoring device; a communication interface configured to be arranged along the wired aortic channel; and a receiver configured to receive a measured aortic blood pressure signal, the receiver being in a housing separate from the communication interface, wherein the communication interface is configured to perform at least one of; (i) electrically tapping into a conductor of the wired aortic channel at a location between the aortic pressure sensor and the central monitoring device without affecting the signal carried over the wired aortic channel, and (ii) sensing at least one of a magnetic field and an electric field in the vicinity of the wired aortic channel that is created by the signal passing through a conductor of the wired aortic channel at a location between the aortic pressure sensor and the central monitoring device without affecting the signal carried over the wired aortic channel, wherein the communication interface is configured to transmit the measured aortic blood pressure signal to the receiver, via a wireless connection between the communication interface and the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An eavesdropping system for acquiring a measured physiological variable of an individual, comprising:
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an aortic pressure sensor configured to measure aortic blood pressure of the individual and to provide a signal representing the measured aortic blood pressure; a distal pressure sensor configured to measure distal blood pressure of the individual and to provide a signal representing the measured distal blood pressure; a central monitoring device configured to receive the signal representing measured aortic blood pressure; a communication interface that is arranged along a wired aortic channel, the wired aortic channel extending from the aortic pressure sensor to the central monitoring device; a control unit configured to receive the signal representing the measured distal blood pressure via a wired connection between the distal pressure sensor and the control unit, the control unit being in a housing separate from the communication interface; and a receiver configured to receive a measured aortic blood pressure signal, the receiver being in a housing separate from the communication interface and the control unit, wherein the communication interface is configured to perform at least one of; (i) electrically tapping into a conductor of the wired aortic channel at a location between the aortic pressure sensor and the central monitoring device without affecting the signal carried over the wired aortic channel, and (ii) sensing at least one of a magnetic field and an electric field in the vicinity of the wired aortic channel that is created by the signal passing through a conductor of the wired aortic channel at a location between the aortic pressure sensor and the central monitoring device without affecting the signal carried over the wired aortic channel, wherein the communication interface is configured to transmit the measured aortic blood pressure signal to the receiver, via a wireless connection between the communication interface and the receiver, and wherein the control unit is configured to send the signal representing the measured distal blood pressure to both the receiver and the central monitoring device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification