초록 ▼

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 thermi

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.

대표청구항 ▼

1. A device for measuring the temperature of a temperature medium of a patient comprising:an access device that is insertable into the patient at a location of the temperature medium, including at least one thermal mass other than the temperature medium, such at least one thermal mass being located

1. A device for measuring the temperature of a temperature medium of a patient comprising:an access device that is insertable into the patient at a location of the temperature medium, including at least one thermal mass other than the temperature medium, such at least one thermal mass being located within a thermal lumen of the access device; a pair of ports formed in an outer wall of the access device; a temperature sensor supported by the access device; at least one insulating structure insulating the temperature sensor from the thermal mass; and a flow channel formed within the access device and extending between the pair of ports wherein the temperature medium occupies the flow channel, wherein the flow channel is located between the temperature sensor and the thermal lumen, the flow channel thereby both increasing thermal contact between the temperature sensor and the temperature medium and also thermally isolating the temperature sensor further from the thermal lumen.