Medical probe with reduced number of temperature sensor wires
First Claim
1. A medical probe, comprising:
- an elongate member having a proximal end and a distal end, plurality of temperature sensors carried by the distal end of the elongate member, wherein each of the temperature sensors comprises a digital integrated circuit configured for outputting digital data representative of a measured temperature, and a common electrical bus carried by the elongate member, and defining two or more electrical paths, each of which is coupled to the plurality of temperature sensors.
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Accused Products
Abstract
Systems and methods for reducing the number of temperature measurement wires in multiple temperature sensor ablation systems are described. In a preferred embodiment, temperature sensors capable of measuring the temperature of body tissue and transmitting the temperature data digitally are incorporated in a catheter or probe ablation system that also includes electrodes in operative contact with the sensors. The sensors are connected in parallel to a common electrical bus, thereby allowing the system to operate using a reduced number of electrical paths as compared to conventional ablation systems. The present invention is also directed to ablation systems that incorporate analog sensors rather than digital sensors. In this embodiment, the system utilizes digital switching, filtering circuits, or oscillators to reduce the number of wires required to operate the sensors.
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Citations
39 Claims
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1. A medical probe, comprising:
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an elongate member having a proximal end and a distal end, plurality of temperature sensors carried by the distal end of the elongate member, wherein each of the temperature sensors comprises a digital integrated circuit configured for outputting digital data representative of a measured temperature, and a common electrical bus carried by the elongate member, and defining two or more electrical paths, each of which is coupled to the plurality of temperature sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A temperature sensor subassembly, comprising:
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a plurality of temperature sensors, wherein each of the temperature sensors comprises a digital integrated circuit configured for outputting digital data representative of a measured temperature; and
a common electrical bus comprising two or more wires, each of which is coupled to the plurality of temperature sensors. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A medical probe, comprising:
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an elongate member, and one or more temperature sensor subassemblies carried by the elongate member, each of the temperature sensor subassemblies comprising a plurality of temperature sensors, wherein each of the temperature sensors comprises a digital integrated circuit configured for outputting digital data representative of a measured temperature and a common electrical bus connected to the plurality of temperature sensors. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38, 39)
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35. A medical probe, comprising:
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an elongate member having a distal end;
a plurality of digital temperature sensors carried by the distal end of the elongate member, wherein each of the one or more digital temperature sensors is configured to output a digital signal representative of a measured temperature;
a common electrical bus extending through'"'"'the elongate member, and defining two or more electrical paths, each of which is coupled to the plurality of digital temperature sensors; and
an electrode carried by the distal end of the elongate member, wherein one or more of the plurality of digital temperature sensors is located adjacent the electrode.
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Specification