Minimal surface area collection device and rapid method for estimating low blood volume
AssigneeCypher Medical, LLC
InventorChristopher A. Carew
Life of this patent
Estimating the term…
Abstract
An insert for a holding device for reliably and accurately assessing a small volume of blood in a fluid, such as in a volume of surgical fluid collected during a surgical procedure, is provided. The insert may include a circular shelf having an outside perimeter configured to fit up against an inside perimeter of a holding device. The insert may include a center opening. The insert may include a conically-shaped collection cone disposed in the center opening. The collection cone may include a length, an interior surface comprising a red blood cell flocculant coating, a gradually decreasing perimeter terminating in a bottom apex, and a series of graduated volumetric markings along the length of the collection cone.
Claims7
A conical collection device configured to measure a volume of blood in a volume of 10 mls or less of a fluid, wherein the conical collection device comprises:
- a shelf having an outside perimeter configured to fit up against an inside perimeter of a holding device for a conical-shaped fluid collection cone, wherein the shelf comprises an opening configured to receive an open top end of the conical-shaped fluid collection cone;
- and
- a conical-shaped collection reservoir, said conical-shaped collection reservoir comprising:
- a top end configured to fit within the opening of the shelf;
- a length;
- an interior surface;
- a decreasing perimeter starting at the top end and terminating in a bottom apex of the conical-shaped collection reservoir, and
- a series of markings along the length of the conical-shaped collection reservoir corresponding to sedimented red blood cells in the conical-shaped collection reservoir, the sedimented red blood cells corresponding to a calculated red blood cell volume in the conical-shaped collection reservoir.
Dependencies are inferred from the claim text.