Integrated resistive filters in catheter distal end
AssigneeBiosense Webster (Israel) Ltd.
InventorsChristopher Thomas Beeckler, Assaf Govari
Life of this patent
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Abstract
A distal-end assembly of a medical device, the distal-end assembly includes a flexible substrate and electrical conductors. The flexible substrate is configured to be coupled to a distal end of an insertion tube. The electrical conductors are disposed on the flexible substrate and are shaped to form: (i) one or more electrodes, configured to exchange electrical signals with a proximal end of the medical device, and (ii) one or more printed filters shaped to form at least a resistor, which are disposed adjacently to at least one of the electrodes and are configured to filter signals in a predefined frequency range from the electrical signals exchanged between the at least one of the electrodes and the proximal end.
Claims20
A distal-end assembly of a medical device, the distal-end assembly comprising:
- a flexible substrate, which is configured to be coupled to a distal end of an insertion tube, the flexible substrate includes a dome cover in the form of a circular sheet connected to a rectangular sheet and a plurality of irrigation holes formed in the flexible substrate;
- and
- electrical conductors, which are disposed on the flexible substrate and are shaped to form:
- (i) a plurality of micro electrodes disposed along a length of the rectangular sheet adjacent to the dome cover, each electrode configured to exchange electrical signals with a proximal end of the medical device, and
- (ii) (ii) one or more printed filters shaped to form at least a resistor, which are disposed adjacently to each of the plurality of micro electrodes and are configured to filter signals in a predefined frequency range from the electrical signals exchanged between each of the plurality of micro electrodes and the proximal end of the medical device.
A method for producing a distal-end assembly of a medical device, the method comprising:
- providing a flexible substrate that includes a dome cover in the form of a circular sheet connected to a rectangular sheet and a plurality of irrigation holes formed in the flexible substrate
- disposing on the rectangular sheet of the flexible substrate adjacent the circular sheet, first electrical conductors shaped to form a plurality of micro electrodes for exchanging electrical signals with a proximal end of the medical device
- disposing on a length of the rectangular sheet opposite the circular sheet an electrode that extends along the length of the rectangular sheet to define a ring electrode;
- disposing adjacently to at least one of the plurality of micro electrodes, one or more second electrical conductors shaped to form one or more printed filters comprising at least a resistor designed for filtering signals in a predefined frequency range from the electrical signals exchanged between each of the plurality of micro electrodes and the proximal end;
- and
- coupling the flexible substrate to a distal end of an insertion tube.
Dependencies are inferred from the claim text.