Apparatus for administrating toxic fluid

• US 6,409,708 B1
• Filed: 05/04/1999
• Issued: 06/25/2002
• Est. Priority Date: 05/02/1995
• Status: Expired due to Term

• Current Assignee: Carmel Pharma AB (Becton, Dickinson & Co)
• Original Assignee: Carmel Pharma AB (Becton, Dickinson & Co)
• Inventors: Wessman, Göran
• Primary Examiner(s): Casler, Brian L.
• Assistant Examiner(s): Sirmons, Kevin C.
• Application Number:
  US09/304,695
• Time in Patent Office: 1,148 Days
• Field of Search: 604/284, 604/256, 604/282, 604/283, 604/45, 604/412, 604/413, 604/414, 604/164.02, 604/164.04, 604/164.07, 604/164.06, 604/164.1, 604/164.11, 604/167.01, 604/167.02, 604/167.03, 604/167.06, 604/173, 604/246, 604/201, 604/205, 604/264, 604/905, 604/8, 604/39, 604/506, 138/110
• US Class Current: 604/284
• CPC Class Codes: A61M 2005/1623 Details of air intake
• CPC Class Codes: A61M 2202/049 Toxic
• CPC Class Codes: A61M 5/1411 Drip chambers A61M5/162, A61M5/1689, A61M5/40 take precedence
• CPC Class Codes: A61M 5/1582 Double lumen needles
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14

Abstract

Device for administrating a toxic fluid, comprising an infusion device for connection to an infusion bag. The infusion device is provided with an insertion portion for connecting the bag, and an infusion chamber for dosing a fluid flow via a flow duct in the insertion portion from the bag to an outlet arranged on the chamber. The insertion portion also comprises a ventilating duct which extends between the bag and the outside of the infusion device and ends in a connection arranged on the side of the infusion device for supplying fluid to be administrated. The connection is provided with at least one membrane which is air tight and penetrable by an injection needle.

Claims

1. An infusion device lateral to the ventilation duct for administering toxic fluid comprising:

an insertion portion for connecting via a proximal end thereof to an infusion bag when in an installed condition, said insertion portion having

a flow duct connectable to said infusion bag when in an installed condition via a free, proximal outlet end of the flow duct, and

a separate ventilation duct connectable to said infusion bag when in an installed condition via a free, proximal inlet end of the ventilation duct, the insertion portion being structured to provide that both the free end of the flow duct and the free end of the ventilation duct, when in an installed condition, are in fluid contact with an interior of the infusion bag simultaneously and independently of each other, the ventilation duct and the flow duct being permanently fixed in relation to each other;

the flow duct having an outlet at an opposite, distal end thereof; and

,

the ventilating duct being constructed to provide, when in the installed condition, fluid communication between the infusion bag and an exterior of said infusion device,

an opposite, distal end of the ventilation duct opening to a connection arranged on a side of said infusion device for supplying said toxic fluid, wherein said connection is provided with at least one airtight, self-sealing membrane that is penetrable by an injection needle, which membrane automatically reseals upon withdrawal of the injection needle therefrom.

2. The device of claim 1, wherein the outlet of the flow duct is in fluid contact with an infusion chamber.