Device for contactless monitoring of patient's vital signs
AssigneeLinet Spol. S R.O.
InventorsVladimir KOLAR, Libor SEIDL
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Abstract
Device for contactless monitoring of a patient's vital signs in the form of a measuring mat comprising at least one measuring element. The measuring element comprises a piezoelectric sensor with a first and a second conductive electrode and a piezoelectric element. Near the piezoelectric sensor is a third conductive electrode. The exertion of a mechanical force on the cover of the measuring element results in a change in the distance between at least one of the electrodes of the piezoelectric sensor and the third conductive electrode. This change in distance is expressed as a difference in the detected parameter corresponding to a change in the patient's vital signs.
Claims13
Device for contactless monitoring of a patient's vital signs for insertion between a patient support of bed and a mattress, the device comprising:
- a processing unit, and
- at least one measuring member comprising:
- a piezoelectric sensor with a first and second conductive electrode and a piezoelectric element, and
- a third conductive electrode connected to the processing unit and placed near the piezoelectric sensor, wherein the least one of the first and second conductive electrodes and third conductive electrode forms a capacitor, where a distance between at least one of the first and second electrodes and the piezoelectric sensor varies depending on the perpendicular force on the measuring member.
Method for contactless monitoring of a patient's vital signs comprising the steps of:
- a) providing a processing unit,
- b) providing a measuring element comprising:
- a piezoelectric sensor with a first and second conductive electrode and a piezoelectric element, and
- a third conductive electrode,
- c) connecting the measuring element to the processing unit, and
- c) applying a force that results in a change to a distance between at least one of the first and second conductive electrode of the piezoelectric sensor and the third conductive electrode proximate to the piezoelectric sensor, the distance being proportional to a capacity measured between the at least one of the first and second conducting electrodes and the third conductive electrode by the processing unit.
Device for contactless monitoring of a patient's vital signs, comprising:
- a patient support,
- a mattress supported by the patient support,
- a processing unit supported by the patient support, and
- at least one measuring member inserted between the patient support and the mattress, the measuring member comprising:
- a piezoelectric sensor with a first and second conductive electrode and a piezoelectric element,
- a third conductive electrode connected to the processing unit and placed near the piezoelectric sensor, wherein the at least one of the first and second conductive electrodes and the third conductive electrode forms a capacitor, where a distance between at least one of the first and second electrodes and the piezoelectric sensor varies depending on the perpendicular force on the measuring member.
Dependencies are inferred from the claim text.