초록 ▼

An improved medical conduit including a heating element for controlling the temperature and humidity of a gas to be delivered to a recipient patient is disclosed. A flexible ribbon spanning the width of a flexible tubing and extending generally the length of the tubing is provided, where the flexibl

An improved medical conduit including a heating element for controlling the temperature and humidity of a gas to be delivered to a recipient patient is disclosed. A flexible ribbon spanning the width of a flexible tubing and extending generally the length of the tubing is provided, where the flexible ribbon carries a heating element therein. The heating element, preferably an electrically conductive wire or plurality of wires, is connected to a power supply in order to heat the flow of gas traveling within the tube. The flow is heated as it passes over and around the heating element. The flexible ribbon supporting the heating element can be integral with the tubing or comprise an insertable unit which fits into the tubing.

대표청구항 ▼

[ What is claimed is:] [1.] A flexible tubing heating system for delivering a gas at a controlled temperature from a source to a recipient person comprising:a flexible hollow tubing having a generally circular cross-section, including an inner wall defining an interior region;an elongated, flat, sol

[ What is claimed is:] [1.] A flexible tubing heating system for delivering a gas at a controlled temperature from a source to a recipient person comprising:a flexible hollow tubing having a generally circular cross-section, including an inner wall defining an interior region;an elongated, flat, solid, flexible insulating ribbon disposed within said tubing and extending substantially from a proximal end at said source to a distal end near said recipient, said ribbon having first and second edges adjacent the inner wall and a middle portion positioned within the central interior region of said tubing; andelectrical unit within said ribbon and spaced from said inner wall for heating the gas as the gas travels from the proximal end to the distal end to prevent formation of liquid in the flexible tubing.