Two-stage calibration of medical probes
First Claim
1. Medical apparatus, comprising:
- a probe, having a proximal end and a distal end, which is adapted for insertion into the body of a subject, the probe comprising;
a sensor, which outputs a sensor signal;
a first microcircuit, which stores first calibration data with respect to the sensor; and
a first connector at the proximal end of the probe, electrically coupled at least to the sensor;
a probe adapter, comprising;
a second connector, which is arranged to mate with the first connector;
a signal processing circuit, which is coupled to process the sensor signal so as to output a processed signal;
a second microcircuit, which stores second calibration data with respect to the signal processing circuit;
a microcontroller, which is arranged to receive the first and second calibration data from the first and second microcircuits, respectively, and to compute combined calibration data based on the first and second calibration data; and
a third connector, electrically coupled at least to the signal processing circuit; and
a console, comprising;
a fourth connector, which is arranged to mate with the third connector; and
signal analysis circuitry, which is coupled to receive at least the processed signal from the fourth connector and is arranged to analyze the processed signal using the combined calibration data provided by the probe adapter.
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Accused Products
Abstract
A probe for insertion into the body of a subject includes a sensor, a first microcircuit, which stores first calibration data with respect to the sensor, and a first connector at the proximal end of the probe. A probe adapter includes a second connector, which mates with the first connector, a signal processing circuit, which is processes the sensor signal, and a second microcircuit, which stores second calibration data with respect to the signal processing circuit. A microcontroller in the adapter receives the first and second calibration data and computes combined calibration data. The adapter includes a third connector, which mates with a fourth connector on a console. The console includes signal analysis circuitry, which analyzes the processed signal using the combined calibration data provided by the probe adapter.
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Citations
16 Claims
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1. Medical apparatus, comprising:
a probe, having a proximal end and a distal end, which is adapted for insertion into the body of a subject, the probe comprising;
a sensor, which outputs a sensor signal;
a first microcircuit, which stores first calibration data with respect to the sensor; and
a first connector at the proximal end of the probe, electrically coupled at least to the sensor;
a probe adapter, comprising;
a second connector, which is arranged to mate with the first connector;
a signal processing circuit, which is coupled to process the sensor signal so as to output a processed signal;
a second microcircuit, which stores second calibration data with respect to the signal processing circuit;
a microcontroller, which is arranged to receive the first and second calibration data from the first and second microcircuits, respectively, and to compute combined calibration data based on the first and second calibration data; and
a third connector, electrically coupled at least to the signal processing circuit; and
a console, comprising;
a fourth connector, which is arranged to mate with the third connector; and
signal analysis circuitry, which is coupled to receive at least the processed signal from the fourth connector and is arranged to analyze the processed signal using the combined calibration data provided by the probe adapter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for performing an invasive medical procedure, comprising:
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providing a probe, having a proximal end and a distal end, which comprises a sensor, which outputs a sensor signal, a first microcircuit, which stores first calibration data with respect to the sensor, and a first connector at, the proximal end of the probe, electrically coupled at least to the sensor;
connecting the first connector of the probe to a second connector of a probe adapter, which comprises a signal processing circuit, which is coupled to process the sensor signal so as to output a processed signal, and a second microcircuit, which stores second calibration data with respect to the signal processing circuit, and a third connector, electrically coupled at least to the signal processing circuit;
using a microcontroller in the adapter, reading the first and second calibration data from the first and second microcircuits, respectively, and computing combined calibration data based on the first and second calibration data;
connecting the;
third connector of the adapter to a fourth connector of a console, which comprises signal analysis circuitry;
inserting the probe into a body of a subject; and
using the signal analysis circuitry, receiving via the fourth connector at least the processed signal from the adapter and analyzing the processed signal using the combined calibration data provided by the probe adapter while the probe is in the body. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification