Anticoagulant dispensing apparatus and method of use
AssigneeHaemonetics Corporation
InventorAllen Latham, Jr.
Life of this patent
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Abstract
An aseptically pure dispensing anticoagulant device adapted to be connected to a blood collection set and which may be aseptically treated by ethylene oxide or other high diffusivity sterilant without deleterious effects upon the anticoagulant. Various embodiments are shown; in one, a collapsible pouch is provided which includes a barrier against diffusion of water vapor and ethylene oxide. In another embodiment, a rigid anticoagulant container is employed which necessitates a secondary volume of air in a surrounding pouch to provide air to displace liquid in the rigid container as it passes into the set.
Claims11
A blood collection set, comprising:
- a. an anticoagulant solution in a first rigid container impermeable to water vapor and sterilant;
- b. a blood receiving container;
- c. a second container, permeable to said sterilant, surrounding said first container;
- d. conduit means interconnecting said second container and said bag;
- and
- e. rupture means for rupturing the first container so that the anticoagulant solution may flow from said first container through the conduit means connecting the second container and said bag.
A method of sterilizing the equipment necessary for drawing blood and mixing the blood with an anticoagulant comprising the steps of:
- (a) sterilizing an integral anticoagulant container of material impermeable to high diffusivity sterilant by a high temperature steam autoclave process;
- (b) connecting puncture means between said anticoagulant container and a second container;
- (c) encapsulating said integral anticoagulant container and puncture means within said second container comprising flexible, compressable, material;
- (d) connecting conduit means from a phlebotomy needle to said second container;
- and
- (e) connecting conduit means from said phlebotomy needle to a whole blood collecting bag.
A blood collection set, comprising:
- a. an anticoagulant solution in a first container impermeable to water vapor and sterilant, said first container comprising a foil lined plastic pouch;
- b. a blood receiving container;
- c. a second plastic bag container, permeable to said sterilant, surrounding said first container;
- d. conduit means interconnecting said second container and said blood receiving container, and
- e. rupture means intermediate said first container and said conduit means to rupture the first container so that the anticoagulant solution may flow from said first container to the conduit means connecting the second container and said blood receiving container.
Dependencies are inferred from the claim text.