A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/028 (2006.01)
Patent
CA 2395368
An access device such as a catheter, or introducer, or any combination of the above is provided. Within the access device is at least one lumen, channel or instrument that carries or itself is a thermally active mass, such as infusion fluids, control wires, etc. A temperature sensor such as a thermistor is secured to the access device in order to measure the temperature of a temperature medium, typically blood, in a patient. Various insulating lumens, insulating members and mounting and extrusion configurations are provided by the invention to insulate the temperature sensor thermally from the thermal mass, which might otherwise degrade the accuracy of the temperature measurement. The invention also provides an arrangement whereby the temperature sensor is connected to an external monitor for display of the patient's temperature.
L'invention concerne un dispositif d'accès, tel qu'un cathéter, un introducteur ou une combinaison des deux. Le dispositif comporte au moins une lumière, un canal ou un instrument portant ou étant une masse thermiquement active, telle que des fluides d'infusion, des fils de commandes etc. Un capteur de température, tel qu'une thermistance, est fixé au dispositif d'accès afin de mesurer la température d'un milieu thermique, généralement le sang, chez un patient. L'invention concerne également plusieurs lumières d'isolation, des éléments d'isolation et des configurations de montage et d'extrusion servant à isoler thermiquement le capteur de température de la masse thermique qui, autrement, altérerait la précision de la mesure de la température. L'invention concerne en outre un dispositif permettant que le capteur de température soit relié à un moniteur extérieur pour afficher la température du patient.
Konno Mark
Mooney Charles R.
Bcf Llp
Edwards Lifesciences Corporation
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