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US 4,393,882 AGranted
Method and device for collecting, transporting, and delivering micro samples of blood
AssigneeAmerican Hospital Supply Corporation
InventorFred K. White
Life of this patent
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AssigneeAmerican Hospital Supply Corporation
InventorFred K. White
Estimating the term…
A device for collecting micro samples of arterial or venous blood from patients and for transporting and delivering such samples to suitable blood analysis equipment such as a conventional blood gas analyzer. An essential component of the device is a tubular elastomeric adapter-handle having integral body and tip sections, the body section having a tapered bore for receiving and holding the end portion of a heparinized glass microcapillary tube and the tip being both internally and externally tapered (in reverse directions) to permit releasable attachment of the tip to the hub of a hypodermic needle and, after a sample has been collected, to the inlet of a blood analyzer.
A one-piece adapter for use in collecting micro samples of blood for laboratory testing, said adapter having integral body and tip sections formed entirely of resilient plastic material, said adapter having a bore extending through said body and tip sections, said tip section having a frusto-conical outer surface dimensioned and tapered outwardly towards the free end of said tip section to provide a male Luer taper and having the portion of said bore extending therethrough tapering gradually inwardly at an angle within the range of about 1.degree. to 3.degree. measured from the longitudinal axis of said adapter for receiving and engaging the inlet tube of a blood analyzer, said body section of said adapter having the portion of said bore extending therethrough tapering gradually inwardly at an angle within the range of about 2.degree. to 6.degree. measured from the longitudinal axis of said adapter and encompassing diameters of about 0.08 to 0.10 inches.
A device for use in collecting micro samples of blood for laboratory testing, said device comprising an adapter having integral body and tip sections formed of resilient plastic material, said adapter having a bore extending through said body and tip sections, said tip section having an outer surface dimensioned to provide a male Luer taper and having the portion of said bore extending therethrough tapering gradually inwardly for receiving and engaging the inlet tube of a blood analyzer, said body section of said adapter having the portion of said bore extending therethrough tapering gradually inwardly at an angle within the range of 2.degree. to 6.degree. measured from the longitudinal axis of said adapter and encompassing diameters of about 0.08 to 0.10 inches, a hypodermic needle assembly having a tubular needle and a hub connected thereto, said hub having a cavity defining a female Luer taper frictionally and releasably receiving said tip section of said adapter, and a heparinized glass microcapillary tube having an end thereof frictionally and removably received in the bore portion of said body section.
Dependencies are inferred from the claim text.