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US 2024/0198018 A1Published application
Insufflation Tube for Laparoscopy Comprising Heating Element, Humidifying Material and Device for Determining the Moisture Content
AssigneeW.O.M. World of Medicine GmbH
InventorBernd Müller
Life of this patent
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Abstract
The present invention relates to an insufflator having an insufflation tube comprising an integrated heating element and humidifying material for laparoscopy, wherein measurement of the moisture content is possible. No separate humidity sensor is required to measure the moisture content of the humidifying material. Components that are already part of the insufflation tube can be used, in particular, the lead wires of heating elements or temperature sensors.
Claims13
An insufflation device for use in medical technology comprising:
- an insufflator for gas supply and;
- an insufflation tube, the insufflation tube including a humidifying material in its interior, the humidifying material being in contact with a heating element, the heating element including a wire which can be activated by applying a current, and
- wherein the insufflation tube further includes two mutually insulated wires which together form a capacitor whose impedance depends on a humidity of the humidifying material.
The method further comprising the steps of:
- a) applying a high-frequency voltage to the two mutually insulated wires forming the capacitor,
- b) determining the impedance of the capacitor with dry humidifying material,
- c) humidifying the humidifying material,
- d) determining the impedance of the capacitor with humidified humidifying material,
- e) passing gas through the insufflation tube, and
- f) determining a humidity of the humidifying material from a change in impedance during insufflation.
3 more elements
Dependencies are inferred from the claim text.