Extended wear electrocardiography patch
First Claim
1. An extended wear electrocardiography patch, comprising:
- a flexible backing formed of an elongated strip of stretchable spunlace material with a narrow longitudinal midsection tapering evenly inward from both ends of the elongated strip;
a layer of stretchable adhesive applied on at least a portion of a contact surface of the flexible backing, the flexible backing defining a pair of openings on both ends;
a non-stretchable circuit axially affixed to an outward-facing surface of the flexible backing and comprising a pair of circuit traces both originating within one of the ends of the elongated strip, wherein the flexible backing acts as a buffer between the non-stretchable circuit and the stretchable adhesive and prevents disadhesion of the flexible backing during bending; and
a pair of electrocardiographic electrodes electrically coupled to each of the circuit traces and conductively exposed on the contact surface of each end of the elongated strip through each of the openings, wherein each electrode is initially centered over the respective opening in the flexible backing and shifts during the bending of the flexible backing, traverses away from a center of the opening during the bending of the flexible backing, and shifts between a portion of the flexible backing and the non-stretchable circuit.
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Accused Products
Abstract
An extended wear electrocardiography patch is provided. A flexible backing is formed of an elongated strip of stretchable spunlace material. A layer of stretchable adhesive is applied on at least a portion of a contact surface of the flexible backing, which defines a pair of openings on both ends. A non-stretchable circuit is axially affixed to an outward-facing surface of the flexible backing and has a pair of circuit traces. The flexible backing acts as a buffer between the non-stretchable circuit and the stretchable adhesive and prevents disadhesion of the flexible backing during bending. A pair of electrocardiographic electrodes are electrically coupled to each of the circuit traces. Conductive gel is provided in each of the openings and in electrical contact with the pair of electrocardiographic electrodes as the electrodes shift away from the openings in the flexible backing during the bending.
405 Citations
20 Claims
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1. An extended wear electrocardiography patch, comprising:
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a flexible backing formed of an elongated strip of stretchable spunlace material with a narrow longitudinal midsection tapering evenly inward from both ends of the elongated strip; a layer of stretchable adhesive applied on at least a portion of a contact surface of the flexible backing, the flexible backing defining a pair of openings on both ends; a non-stretchable circuit axially affixed to an outward-facing surface of the flexible backing and comprising a pair of circuit traces both originating within one of the ends of the elongated strip, wherein the flexible backing acts as a buffer between the non-stretchable circuit and the stretchable adhesive and prevents disadhesion of the flexible backing during bending; and a pair of electrocardiographic electrodes electrically coupled to each of the circuit traces and conductively exposed on the contact surface of each end of the elongated strip through each of the openings, wherein each electrode is initially centered over the respective opening in the flexible backing and shifts during the bending of the flexible backing, traverses away from a center of the opening during the bending of the flexible backing, and shifts between a portion of the flexible backing and the non-stretchable circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An extended wear electrocardiography and physiological sensor monitor, comprising:
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a disposable extended wear electrode patch, comprising; a flexible backing formed of an elongated strip of stretchable spunlace material with a narrow longitudinal midsection tapering evenly inward from both ends of the elongated strip; a layer of stretchable adhesive applied on at least a portion of a contact surface of the flexible backing, the flexible backing defining a pair of openings on both ends; a non-stretchable circuit axially affixed to an outward-facing surface of the flexible backing and comprising a pair of circuit traces both originating within one of the ends of the elongated strip, wherein the flexible backing acts as a buffer between the non-stretchable circuit and the stretchable adhesive and prevents disadhesion of the flexible backing during bending; a pair of electrocardiographic electrodes electrically coupled to each of the circuit traces and conductively exposed on the contact surface of each end of the elongated strip through each of the openings, wherein each electrode is initially centered over the respective opening in the flexible backing and shifts during bending of the flexible backing, traverses away from a center of the opening during the bending of the-flexible backing, and shifts between a portion of the flexible backing and the non-stretchable circuit; and a non-conductive receptacle securely adhered on one of the ends of the flexible backing on the outward-facing surface; and a reusable electrocardiography monitor having a sealed housing adapted to be removably secured into the non-conductive receptacle. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification