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The Dezac Group Limited

Ipsmart Inc.

Kevin Herbert

Desmond Bryan Mills

Malcolm Bradley Mills

Anthony Grant

Philip Mutton

An electrode generally comprises a body, which makes up the electrode and which is formed as a thin flexible polymeric substance such as urethane foam. The electrode body includes a central inner conductive area, which is associated with a first electrode connector. Around the inner conductive area is a non-conductive area formed as a ring around the inner conductive area and there is also an outer conductive area provided as a ring, concentrically arranged around the non-conductive area. Electrode connector (B) is connected to the outer conductive ring. The electrode body, which has a release tag and is supported on a backing sheet and body can be peeled off the backing sheet using the release tag. The condition of the electrode can be evaluated using a test device, which can for example measure electrical impedance across the electrode via electrodes (A) and (B).

Contact electrode

A defibrillator incorporates an analyser () arranged to receive signals from a patient's heart (such as from electrode pads () placed on the patient's chest). A charging circuit () enables the electrodes () to deliver a charge from the charging circuit to the patient. The analyser is arranged to compare one or more heart rhythm sequences from the patient with predetermined data relating to a heart rhythm and, depending on a result of an initial part of comparison, the analyser is arranged to activate starting of charging of the charging circuit, whilst comparison continues, in readiness for possible delivery of a shock to the patient.

Defibrillator

A portable defibrillator includes a self-test circuit in which electrical energy is discharged from one or a bank of capacitors to a charge receiving circuit which recycles the energy to a rechargeable battery to prolong the original battery charge. A charge receiving circuit may contain a relatively high Ohmic value/low Wattage resistor such that the discharge occurs over a relatively long period of time, rendering a heat sink unnecessary. The resistor may be a single high value resistor or a network of plural smaller value resistors. Optional switching of the discharge electrical energy during a self-test either recycles it to the rechargeable battery or discharges it through the resistor. The self-test may be carried out on a bank of capacitors in rotation, discharging energy from one capacitor into the next such that all capacitors are charged and discharged from substantially a single power input.

Portable defibrillators

Body toning belt

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Gloucestershire, United Kingdom

Kevin Herbert