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US 9,808,639 B2Granted
Intuitive overlaid readiness indicator for defibrillators
AssigneeKoninklijke Philips N.V.
InventorNorman Maurice Delisle
Life of this patent
Estimating the term…
Abstract
A fail-safe visual indicator (62) for indicating the readiness status of a medical device is described. The visual indicator incorporates iconic status indications (67, 70) which are easier to understand for users of all nationalities and languages. The status indications are superimposed upon each other in order to reduce the space required on the medical device for the indicator.
Claims19
A method for displaying the operating status of a defibrillator, comprising the steps of:
- automatically determining a ready-for-use status of the defibrillator in a defibrillator self-test circuit;
- providing a positive control signal from the defibrillator self-test circuit responsive to the automatically determining step;
- providing a second liquid crystal shutter coaxial with the visual icon and the liquid crystal shutter;
- providing a visual display on an external surface of the defibrillator, the visual display including a visual icon which indicates a not-ready-for-use status overlaid by a liquid crystal shutter;
- and
- driving the liquid crystal shutter to an opaque state with the positive control signal,
- wherein the liquid crystal shutter includes a transparent visual icon which indicates the ready-for-use status responsive to the driving step.
4 more elements
A defibrillator having an external housing, comprising:
- a readiness status circuit operable to determine a ready-for-use status;
- and
- a visual indicator controlled by the readiness status circuit and disposed on the housing,
- the visual indicator including
- a graphic icon indicating a not-ready-for-use status, a liquid crystal shutter overlaying the graphic icon,
- the liquid crystal shutter having a transparent icon indicating a ready-for-use status,
- wherein the visual indicator further comprises:
- a second liquid crystal shutter disposed coaxially with both the liquid crystal shutter transparent icon and the graphic icon, and
- wherein the readiness status circuit is operable to drive a portion of the liquid crystal shutter surrounding the transparent icon into an opaque state.
6 more elements
A visual readiness indicator for a medical device, comprising:
- an input for a signal indicating a ready-for-use status;
- a graphic icon indicating a not-ready-for-use status;
- and
- a liquid crystal shutter overlaying the graphic icon, the liquid crystal shutter having a transparent icon indicating a ready-for-use status,
- a second liquid crystal shutter disposed coaxially with both the liquid crystal shutter transparent icon and the graphic icon,
- wherein the input is operable to drive a portion of the liquid crystal shutter surrounding the transparent icon into an opaque state.
3 more elements
Dependencies are inferred from the claim text.