Powder inhalation device with propellant

Abstract

A powder inhalation device with a propellant according to various embodiments may include a housing pipe, a carrier chamber disposed at one end portion of the housing pipe and filled with the propellant, a mouthpiece portion disposed at the other end portion of the housing pipe, a first valve disposed between the carrier chamber and the housing pipe and a powder supply configured to supply powder into the housing pipe.

1 . A powder inhalation device with a propellant, the powder inhalation device comprising:
 a housing pipe;   a carrier chamber disposed at one end portion of the housing pipe and filled with the propellant;   a mouthpiece portion disposed at the other end portion of the housing pipe;   a first valve disposed between the carrier chamber and the housing pipe; and   a powder supply configured to supply powder into the housing pipe.   
     
     
         2 . The powder inhalation device of  claim 1 , further comprising a second valve disposed between the mouthpiece portion and the housing pipe. 
     
     
         3 . The powder inhalation device of  claim 1 , further comprising a carrier cartridge disposed at an opposite end portion to one end portion of the carrier chamber facing the housing pipe. 
     
     
         4 . The powder inhalation device of  claim 1 , wherein pressure inside the carrier chamber is higher than atmospheric pressure. 
     
     
         5 . The powder inhalation device of  claim 1 , further comprising an inhalation detection sensor,
 wherein the inhalation detection sensor is configured to open and close the first valve by detecting an inhaling action of a user.   
     
     
         6 . The powder inhalation device of  claim 2 , wherein the powder supply is disposed between the first valve and the second valve. 
     
     
         7 . The powder inhalation device of  claim 1 , wherein the powder supply comprises:
 a powder cartridge configured to accommodate powder; and   a powder spray.   
     
     
         8 . The powder inhalation device of  claim 7 , wherein the powder spray is disposed inclined toward the mouthpiece portion. 
     
     
         9 . The powder inhalation device of  claim 7 , wherein the powder spray comprises a streamlined structure. 
     
     
         10 . The powder inhalation device of  claim 3 , wherein the carrier chamber and the carrier cartridge further comprise an excipient, and the excipient comprises an aerosol forming substrate or flavoring agent. 
     
     
         11 . The powder inhalation device of  claim 7 , wherein
 the powder cartridge comprises a plurality of powder capsules comprising powder, and   the powder supply further comprises a crushing unit configured to crush the powder capsules supplied by the powder cartridge.   
     
     
         12 . The powder inhalation device of  claim 1 , wherein the powder comprises nicotine.