Apparatus and method for autologous normovolemic hemodilution
AssigneeUniversity Hospitals of Cleveland Case Western Reserve University
InventorJames R. Trickett
Life of this patent
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Abstract
A system and method for autologous normovolemic hemodilution (ANH) are disclosed. The system can include a vacuum canister, which is sized to accept donor bags of a predetermined capacity. The vacuum canister is connected to a vacuum source which applies a suction to the donor bag within the canister. The system can include a canister having a self-generated vacuum, which includes compressible sidewalls that are spring-loaded to provide negative pressure needed to collect blood from a patient without the use of a gravity-induced siphon gradient. Also disclosed are ANH systems and kits that rely on a gravity-induced siphon gradient for blood collection.
Claims8
An autologous normovolemic hemodilution (ANH) blood collection device of comprising:
- a canister having resilient, compressible sidewalls;
- a compression device operative to compress the canister, wherein the compression device includes a rotatable compression knob;
- wherein the resilient canister sidewalls are operative to return to an decompressed state following compression, thereby generating a negative pressure within the canister of sufficient magnitude to draw blood from a patient;
- and
- an agitator connected to a drive mechanism within the canister, wherein the drive mechanism includes a lower portion threadably engaging an upper portion, the upper portion being connected to the rotatable compression knob.
An autologous normovolemic hemodilution (ANH) blood collection device comprising:
- a canister having resilient, compressible sidewalls;
- a compression device operative to compress the canister;
- wherein the resilient canister sidewalls are operative to return to an decompressed state following compression, thereby generating a negative pressure within the canister of sufficient magnitude to draw blood from a patient;
- and
- an agitator connected to a drive mechanism within the canister, wherein the drive mechanism rotates as the canister returns to an uncompressed state, the rotation rotating the agitator within the canister.
Dependencies are inferred from the claim text.