Extended wear electrocardiography patch
First Claim
1. An extended wear electrocardiography patch, comprising:
- a flexible backing formed of an elongated strip of stretchable material with a narrow longitudinal midsection evenly tapering inward from both ends, the elongated strip adherable only on a contact surface defined on each of the ends, and operable to serve as a crimp relief to facilitate compression of the narrow longitudinal midsection in response to compressional and torsional forces;
a pair of electrocardiographic electrodes respectively affixed to and conductively exposed on the contact surface of each end of the elongated strip;
a flexible circuit affixed on each end to the elongated strip and comprising a pair of circuit traces each originating within one of the ends of the elongated strip, respectively; and
electrically coupled to one of the electrocardiographic electrodes, respectively;
a non-conductive receptacle securely adhered on one end of the elongated strip opposite the contact surface and operable to removably receive an electrocardiography monitor, the non-conductive receptacle comprising electrode terminals aligned to electrically interface the pair of the circuit traces to the electrocardiography monitor;
a laterally-extendable strain relief defined in the flexible circuit underneath such that the non-conductive receptacle on the flexible backing covers the strain relief, wherein the strain relief is operable to facilitate extension and rotation of the flexible circuit in response to tensile and torsional forces; and
a pair of strain relief cutouts comprised in the strain relief that each face towards the other strain relief cutout and is positioned transverse to a length of the flexible backing, each strain relief cutout partially extending transversely from and continuing longitudinally to a side of the flexible circuit different than the other strain relief cutout, one of the pair of the circuit traces following a path formed on the flexible circuit between the pair of the strain relief cutout.
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Accused Products
Abstract
Physiological monitoring can be provided through a wearable monitor that includes a flexible extended wear electrode patch and a removable reusable monitor recorder. The wearable monitor sits centrally on the patient'"'"'s chest along the sternum, which significantly improves the ability to sense cutaneously cardiac electric signals, particularly those generated by the atrium. The electrode patch is shaped to fit comfortably and conformal to the contours of the chest approximately centered on the sternal midline. To counter the dislodgment due to compressional and torsional forces, non-irritating adhesive is provided on the underside, or contact, surface of the electrode patch, but only on the distal and proximal ends. To counter dislodgment due to tensile and torsional forces, a strain relief is defined in the electrode patch'"'"'s flexible circuit using cutouts partially extending transversely from each opposite side of the flexible circuit and continuing longitudinally towards each other to define in ‘S’-shaped pattern.
384 Citations
19 Claims
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1. An extended wear electrocardiography patch, comprising:
- a flexible backing formed of an elongated strip of stretchable material with a narrow longitudinal midsection evenly tapering inward from both ends, the elongated strip adherable only on a contact surface defined on each of the ends, and operable to serve as a crimp relief to facilitate compression of the narrow longitudinal midsection in response to compressional and torsional forces;
a pair of electrocardiographic electrodes respectively affixed to and conductively exposed on the contact surface of each end of the elongated strip;
a flexible circuit affixed on each end to the elongated strip and comprising a pair of circuit traces each originating within one of the ends of the elongated strip, respectively; and
electrically coupled to one of the electrocardiographic electrodes, respectively;
a non-conductive receptacle securely adhered on one end of the elongated strip opposite the contact surface and operable to removably receive an electrocardiography monitor, the non-conductive receptacle comprising electrode terminals aligned to electrically interface the pair of the circuit traces to the electrocardiography monitor;
a laterally-extendable strain relief defined in the flexible circuit underneath such that the non-conductive receptacle on the flexible backing covers the strain relief, wherein the strain relief is operable to facilitate extension and rotation of the flexible circuit in response to tensile and torsional forces; and
a pair of strain relief cutouts comprised in the strain relief that each face towards the other strain relief cutout and is positioned transverse to a length of the flexible backing, each strain relief cutout partially extending transversely from and continuing longitudinally to a side of the flexible circuit different than the other strain relief cutout, one of the pair of the circuit traces following a path formed on the flexible circuit between the pair of the strain relief cutout. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a flexible backing formed of an elongated strip of stretchable material with a narrow longitudinal midsection evenly tapering inward from both ends, the elongated strip adherable only on a contact surface defined on each of the ends, and operable to serve as a crimp relief to facilitate compression of the narrow longitudinal midsection in response to compressional and torsional forces;
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12. An extended wear hourglass-shaped electrocardiography patch, comprising:
- a flexible backing formed of an elongated strip of stretchable material with a narrow longitudinal midsection evenly tapering inward from both ends into an hourglass-shaped pattern when viewed from above;
a contact surface of the flexible backing comprising a non-irritating adhesive dressing at least partially coated on each end and lacking the non-irritating adhesive dressing on the narrow longitudinal midsection;
a pair of electrocardiographic electrodes respectively affixed to and conductively exposed on the contact surface of each end of the flexible backing;
a non-conductive receptacle securely adhered on the one end of the flexible backing opposite the contact surface and operable to removably receive an electrocardiography monitor; and
a flexible circuit affixed to each end of the flexible backing, comprising;
a pair of circuit traces each originating within one of the ends of the flexible backing, respectively;
each circuit trace electrically coupled to one of the electrocardiographic electrodes, respectively; and
a pair of strain relief cutouts positioned underneath the non-conductive receptacle, transverse to a length of the flexible backing and that such that the non-conductive receptacle covers the strain relief cutouts, each of which face towards the other strain relief cutout, each strain relief cutout and partially extend transversely from and continue longitudinally to a side of the flexible circuit different than the other strain relief cutout, one of the pair of the circuit traces following a path formed on the flexible circuit between the pair of the strain relief cutouts. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
- a flexible backing formed of an elongated strip of stretchable material with a narrow longitudinal midsection evenly tapering inward from both ends into an hourglass-shaped pattern when viewed from above;
Specification