Surgical tool with flex circuit ultrasound sensor
First Claim
1. A medical instrument comprising:
- a catheter;
a first conductive layer printed circumferentially around at least a portion of the catheter;
a first nonconductive layer printed on the first conductive layer;
a second conductive layer printed circumferentially around at least a portion of the first nonconductive layer;
a second nonconductive layer printed on the second conductive layer;
an ultrasound sensor printed circumferentially around a distal portion of the second nonconductive layer, the ultrasound sensor adapted to transmit and receive signals;
a first via connecting the ultrasound sensor to the first conductive layer;
a second via connecting the ultrasound sensor to the second conductive layer; and
a connector formed on a proximal end of the catheter for connection to an ultrasound image resolution device.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical instrument includes a printed ultrasound sensor, a surface, at least one non-conductive material, and at least one pair of contacts. The ultrasound sensor includes an array of ultrasound transducers printed on a non-conductive surface of the medical instrument. The medical instrument contains multiple conductive and nonconductive layers. The at least one pair of contacts are electrically coupled to the ultrasound sensor and operably coupled to the conductive layer, the conductive layer coupled to a measurement device, which converts electrical signals from the ultrasound sensor into images displayed on a display unit. The location of the medical instrument can be visualized in real time on the display unit.
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Citations
18 Claims
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1. A medical instrument comprising:
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a catheter; a first conductive layer printed circumferentially around at least a portion of the catheter; a first nonconductive layer printed on the first conductive layer; a second conductive layer printed circumferentially around at least a portion of the first nonconductive layer; a second nonconductive layer printed on the second conductive layer; an ultrasound sensor printed circumferentially around a distal portion of the second nonconductive layer, the ultrasound sensor adapted to transmit and receive signals; a first via connecting the ultrasound sensor to the first conductive layer; a second via connecting the ultrasound sensor to the second conductive layer; and a connector formed on a proximal end of the catheter for connection to an ultrasound image resolution device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A catheter guide assembly comprising:
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an extended working channel defining a lumen; and a catheter positionable through the lumen of the extended working channel, the catheter comprising; a first conductive layer; a first nonconductive layer disposed on the first conductive layer; a second conductive layer disposed on the first nonconductive layer; a second nonconductive layer disposed on the second conductive layer; an ultrasound sensor printed circumferentially around a distal portion of the second nonconductive layer; a first via connecting the ultrasound sensor to the first conductive layer; and a second via connecting the ultrasound sensor to the second conductive layer. - View Dependent Claims (16, 17)
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18. A catheter comprising:
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a first conductive layer connectable to an electromagnetic tracking device configured to sense an induced electrical signal based on a magnetic flux change in an electromagnetic field; a first nonconductive layer disposed on the first conductive layer; a second conductive layer disposed on the first nonconductive layer; a second nonconductive layer disposed on the second conductive layer; an ultrasound sensor printed circumferentially around a distal portion of the second nonconductive layer, the ultrasound sensor having a thickness of from 0.01 mm to 0.05 mm; a first via connecting the ultrasound sensor to the second conductive layer; and a second via connecting the ultrasound sensor to a third conductive layer, wherein a location of the catheter in a coordinate system of the electromagnetic field is identifiable based on the induced electrical signal.
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Specification