INTERFACE UNIT AND A MEASUREMENT SYSTEM
First Claim
1. An extracorporeale interface unit, for an intravascular measurement system for measuring at least one physiological, or other, variable in a living body, adapted to generate a sensor signal in response to said variable, which interface unit comprises:
- a sensor interface circuitry adapted to interface a sensor wire configured to be inserted into the living body and provided with one or more sensor element(s) at its distal region, the sensor interface circuitry comprises a measurement unit adapted to generate a sensor signal based on a sensor variable value related to said variable;
a control unit adapted to control and supervise a plurality of functions of the interface unit, wherein the functions are performed by predefined tasks during consecutive control periods having the same time duration, and during each task, a predefined function of the interface unit is performed, wherein the functions include measuring said at least one variable and one or more other functions selected from;
processing measured data, performing radio communication with an external device, performing electrical stimulation of tissue, and/or performing ablation of tissue; and
an energy source configured to energize the sensor interface circuitry during said function of measuring said at least one variable, and to additionally energize the one or more other functions,wherein the control unit is configured such that each predefined task has a designated task time period length, only one task is executed at the same time, and each task in a control period is designated for a task time slot of said control period, wherein the tasks within a control period are separated by a specified task separation time period, andwherein the energy source does not energize the sensor interface circuitry or any of the one or more other functions during the task separation time period.
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Abstract
The present invention relates to an extracorporeale interface unit (8), for an intravascular measurement system for measuring at least one physiological, or other, variable in a living body, adapted to generate a sensor signal in response of the variable. The interface unit (8) comprises a sensor interface circuitry (6) adapted to interface a sensor wire configured to be inserted into the living body and provided with one or many sensor element(s) at its distal region. The sensor interface circuitry (6) comprises a measurement unit (9) adapted to generate the measured data of the variable as a sensor signal. The interface unit (8) further comprises a control unit (1) adapted to control and supervise the different functions of the interface unit (8), wherein the different functions are performed by predefined tasks (T1, T2, . . ., Tn) during consecutive control periods CP having the same time duration. During each task (T1, T2, . . . Tn) a predefined function of the interface unit (8) is performed. Each predefined task (T1, T2, . . . Tn.) has a designated task time period length (t1, t2, t3, . . . , tn), and only one task (T1, T2, . . . Tn) is adapted to be executed at the same time, and each task (T1, T2, . . . Tn) in a control period CP has a designated task time slot within the control period CP, wherein the tasks (T1, T2, . . . Tn) within a control period CP are separated by a specified task separation time period ts. The present invention further relates to a measurement system (12) comprising the extracorporeale interface unit (8).
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Citations
12 Claims
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1. An extracorporeale interface unit, for an intravascular measurement system for measuring at least one physiological, or other, variable in a living body, adapted to generate a sensor signal in response to said variable, which interface unit comprises:
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a sensor interface circuitry adapted to interface a sensor wire configured to be inserted into the living body and provided with one or more sensor element(s) at its distal region, the sensor interface circuitry comprises a measurement unit adapted to generate a sensor signal based on a sensor variable value related to said variable; a control unit adapted to control and supervise a plurality of functions of the interface unit, wherein the functions are performed by predefined tasks during consecutive control periods having the same time duration, and during each task, a predefined function of the interface unit is performed, wherein the functions include measuring said at least one variable and one or more other functions selected from;
processing measured data, performing radio communication with an external device, performing electrical stimulation of tissue, and/or performing ablation of tissue; andan energy source configured to energize the sensor interface circuitry during said function of measuring said at least one variable, and to additionally energize the one or more other functions, wherein the control unit is configured such that each predefined task has a designated task time period length, only one task is executed at the same time, and each task in a control period is designated for a task time slot of said control period, wherein the tasks within a control period are separated by a specified task separation time period, and wherein the energy source does not energize the sensor interface circuitry or any of the one or more other functions during the task separation time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification