Cartridge for powder and liquid drug

Cartridge for powder and liquid drug

  • CN 101,873,872 A
  • Filed: 09/29/2008
  • Published: 10/27/2010
  • Est. Priority Date: 09/27/2007
  • Status: Active Application
First Claim
Patent Images

1. cartridge case that is used to keep and mix curable product comprises:

  • Tubular body, this tubular body comprise having the relative first end and the cylindrical wall of the second end, and described wall has inner surface and outer surface, and described inner surface has substantially invariable cross section along the medicament mixed zone at least;

    First barriers, this first barriers are slidably disposed in the described wall between described first end and the second end, and described first barriers and described inner surface form fluid tight seal and also have front end;

    Second barriers, this second barriers are slidably disposed in the described wall between described first barriers and the described first end, and described second barriers and described inner surface form fluid tight seal;

    Flexible insert, this flexibility insert is arranged near described the second end place or the described the second end, described insert and described wall form fluid tight seal, be formed with recess in the described insert, described recess complementally is processed into certain size and shape, admits the described front end of described first barriers so that be nested at least in part;

    AndKeeper, this keeper is fixed to described wall at described the second end place, has opening in the described keeper, and this opening is used near described insert so that pierced through by medical needle, wherein, described insert extends in the described keeper and crosses described opening and forms fluid tight seal.

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