| US 7,513,253 B2 | ||
| Liquid medication cartridge and inhaler using the cartridge | ||
| Masaya Kobayashi, Yokohama (Japan); Kenichi Sekine, Kodama-gun (Japan); Toshiyuki Nobutani, Yokohama (Japan); and Mitsuru Imai, Chichibu (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jan. 31, 2006, as Appl. No. 10/566,429. | ||
| Application 10/566429 is a continuation of application No. PCT/JP2005/014361, filed on Jul. 29, 2005. | ||
| Claims priority of application No. 2004-225510 (JP), filed on Aug. 02, 2004. | ||
| Prior Publication US 2007/0240706 A1, Oct. 18, 2007 | ||
| Int. Cl. A61M 15/00 (2006.01); B43K 5/02 (2006.01); B43K 5/14 (2006.01) | ||
| U.S. Cl. 128—203.21 [128/200.12; 128/200.14; 128/200.16; 128/203.12; 401/132; 401/133; 401/134] | 4 Claims |
| 1. A liquid medication cartridge comprising:
an accommodating portion for accommodating a liquid medication;
a liquid discharge portion having a discharge port for discharging the liquid medication by using an ink jet technique; and
a communicating means for establishing communication between the accommodating portion and the liquid discharge portion,
wherein said accommodating portion has a region which is cut off from the atmosphere by a first film and a second film, said
region accommodating the liquid medication,
wherein said communication means contains a liquid path for conducting the liquid medication from said accommodating portion
to said liquid discharging portion and is formed as a unit with said liquid discharging portion, and
wherein the cartridge is constructed to operate such that the communication between the liquid discharging portion and the
accommodating portion is established when said communication means pierces said first film, then the liquid medication is
filled in the liquid discharging portion when said communicating means further penetrates into said accommodating portion,
then the region is communicated with the atmosphere when said communicating means pierces said second film.
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