Patent ID: 11857320
Assignee: SMITHS MEDICAL ASD, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A blood sequestration device configured to automatically retract and safely house a sharpened distal tip of a needle following isolation of an initial quantity of blood and collection of a subsequent sample of blood from a flow of blood of a patient, the blood sequestration device comprising:
a housing;
a needle operably coupled to the housing, the needle having the sharpened distal tip, a proximal end and a wall defining a lumen therebetween;
a needle biasing mechanism operably coupled to the proximal end of the needle and configured to bias the needle from an initial position, in which the sharpened distal tip of the needle protrudes from the housing, to a safe position, in which the sharpened distal tip of the needle is housed within the housing; and
a movable element pivotable about an axis within the housing among an initial blood sequestration position, a blood collection position, and a needle retraction position, wherein the movable element defines a sequestration chamber to receive the initial quantity of blood at the initial blood sequestration position, a fluid conduit to allow the flow of blood of the patient at the blood collection position, and a chamber configured to retain the needle in the safe position at the needle retraction position.