|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 185|
An externally-applied heat exchange pad has three layers laminated together, an inner and outer non-conductive layer and a middle conductive layer. A leak in the inner layer causes coolant to contact the middle layer and change impedance, which can be sensed and used as an indication of an impending total leak of the pad.
1. A method for providing an alarm condition in a heat exchange pad engageable with the exterior of a patient and having at least a middle layer disposed between an outer layer and an inner layer, comprising: receiving a composite signal representing an impedance of the pad, the act of receiving including receiving a first signal from a first electrode in electrical contact with a middle layer of the pad and receiving a second signal from a second electrode disposed inside the inner layer or outside the outer layer, the first and second signals establish...