Method and apparatus for treating gas for use in endoscopic...

Details Method and apparatus for treating gas for use in endoscopic... Method and apparatus for treating gas for use in endoscopic...

2005-10-18

2008-11-25

Mendez, Manuel A (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Gas application

C604S023000, C604S024000, C261S129000, C261S142000, C236S04400R

Reexamination Certificate

active

07455653

ABSTRACT:
An apparatus for conditioning gas for use in a medical procedure, such as endoscopy, the gas being received into the apparatus from a gas source. The apparatus comprises a housing defining a chamber having an entry port and an exit port. A humidification means comprising at least one water-retainer layer is disposed within the chamber in the path of travel of the gas for humidifying the gas as it passes through the chamber. A humidity sensor is disposed within the chamber that senses the humidity of the gas exiting the chamber. A monitoring circuit is connected to the humidity sensor that detects when the chamber requires a recharge of liquid based on the humidity of the gas in the chamber, and generates a recharge signal indicative thereof. A charging port on the housing provides access into the chamber to recharge the chamber with water. A heating element and temperature sensor are also disposed within the chamber. A control circuit further regulates the temperature of the gas exiting the chamber.

REFERENCES:
patent: 4621632 (1986-11-01), Bartels et al.
patent: 5411474 (1995-05-01), Ott et al.
patent: 6039696 (2000-03-01), Bell
patent: 7066902 (2006-06-01), Ott et al.

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