Patent ID: 7367335
Filing Date: 2008-05-06
Classification: A61M

Abstract:
1. A method of delivering a particulate therapeutic agent, comprising: (a) providing a patient having a respiratory system; (b) providing a dose of particulate therapeutic agent to a gas, and delivering the agent and the gas to the respiratory system; (c) providing a carbon dioxide scrubber in pneumatic communication with the respiratory system; (d) providing gas expired from the respiratory system, and particulate therapeutic agent expired from the respiratory system; (e) passing the expired gas and expired particulate therapeutic agent through the scrubber to treat the expired gas, and thereby provide treated gas; (f) passing the expired gas and expired particulate therapeutic agent out of the scrubber to provide treated gas; and (g) providing the treated gas and expired particulate therapeutic agent to the respiratory system; (h) repeating (d) through (g), until the expired particulate therapeutic agent carried by the gas is substantially absorbed.