Ultrasound transducer with differential mode signaling
First Claim
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1. An ultrasound transducer element system, the system comprising:
- at least one ultrasound transducer element comprising at least first and second layers of transducer material;
a system channel configured to operate with differential mode signals, wherein the system channel comprises a beamformer channel; and
a twisted pair connecting the beamformer channel to the ultrasound transducer element.
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Abstract
Rather than using a coaxial cable, a twisted pair of wires is provided for each element-to-beamformer connection. Differential mode signals are transmitted between the transducer element and the respective channel. A multi-layer element is used for operation with the differential mode signals. In catheters or other probes, coaxial cables are not used. Using differential mode signals over twisted pairs allows reduction or rejection of common mode cross-talk and/or interference.
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13 Claims
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1. An ultrasound transducer element system, the system comprising:
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at least one ultrasound transducer element comprising at least first and second layers of transducer material; a system channel configured to operate with differential mode signals, wherein the system channel comprises a beamformer channel; and a twisted pair connecting the beamformer channel to the ultrasound transducer element. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12)
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6. An ultrasound transducer element system, the system comprising:
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at least one ultrasound transducer element comprising at least first and second layers of transducer material, wherein the first layer is poled in a substantially same direction as the second layer; a system channel configured to operate with differential mode signals; and a twisted pair connecting the system channel to the ultrasound transducer element.
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13. An ultrasound transducer element system, the system comprising:
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at least one ultrasound transducer element comprising at least first and second layers of transducer material; a system channel configured to operate with differential mode signals; and a twisted pair connecting the system channel to the ultrasound transducer element, wherein the at least one transducer element and the twisted pair are within a catheter, the twisted pair terminating at a connector link, the connector link electronically connecting the twisted pair of wires with the system channel.
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Specification