PREFILLABLE CONSTANT PRESSURE AMBULATORY INFUSION PUMP
First Claim
Patent Images
1. A portable infusion device comprising:
- a cylindrical housing including a housing end;
an inflatable cartridge sized to fit within the housing, the cartridge including a cartridge end having an inlet and an outlet, the cartridge end configured to be releasably secured to the housing end when the cartridge is inserted into the housing through the housing end, the cartridge end connected to an inflatable portion of the cartridge;
a piston located within the housing, the piston including at least one biasing device positioned to apply a constant force to the inflatable portion of the cartridge to expel a medical fluid from the cartridge.
1 Assignment
0 Petitions
Accused Products
Abstract
A portable infusion device is provided that includes a cylindrical housing having a housing end, an inflatable cartridge sized to fit within the housing and a piston located within the housing. The cartridge can include a cartridge end having an inlet and an outlet. The cartridge end can be connected to an inflatable portion and be configured to be releasably secured to the housing end when the cartridge is inserted into the housing through the housing end. The piston can include at least one biasing device positioned to apply a constant force to the inflatable portion to expel a medical fluid from the cartridge.
-
Citations
29 Claims
-
1. A portable infusion device comprising:
-
a cylindrical housing including a housing end; an inflatable cartridge sized to fit within the housing, the cartridge including a cartridge end having an inlet and an outlet, the cartridge end configured to be releasably secured to the housing end when the cartridge is inserted into the housing through the housing end, the cartridge end connected to an inflatable portion of the cartridge; a piston located within the housing, the piston including at least one biasing device positioned to apply a constant force to the inflatable portion of the cartridge to expel a medical fluid from the cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A portable infusion device comprising:
-
a cylindrical housing; an inflatable cartridge including a bellows connected to an end of the cartridge, the bellows sized to fit within the housing, the end of the cartridge configured to be releasably secured to the housing when the bellows is inserted into the housing, and a piston located within the housing, the piston including at least one biasing device positioned to apply a constant force to the bellows to expel a medical fluid from the cartridge. - View Dependent Claims (22, 23)
-
-
24. A portable infusion kit comprising:
-
a portable infusion device including a cylindrical housing; an inflatable cartridge filled with medical fluid, the inflatable cartridge including an inflatable portion connected to a cartridge end, the inflatable portion sized to fit within the housing, and the cartridge end configured to be releasably secured to the housing when the bellows is inserted into the housing; a piston located within the housing, the piston including at least one biasing device positioned to apply a constant force to the inflatable portion of the cartridge to expel the medical fluid from the cartridge, and a retracting tool including a threaded rod, the threaded rod including a handle on one end and a nut configured to be releasably secured to the housing. - View Dependent Claims (25, 26, 27, 28)
-
-
29. A cartridge for a portable infusion kit, the portable infusion kit including a portable infusion device including a hollow housing, the cartridge comprising:
-
a bellows defining an internal cavity, a medical fluid within the cavity, the bellows shaped to be retained within the housing when containing the medical fluid, a cartridge end configured to be secured to the housing when the bellows is inserted into the housing; an overwrap comprising a gas barrier; and an atmosphere within the barrier being a desired gas mixture.
-
Specification