Collection device for capillary blood

• US 4,576,185 A
• Filed: 12/05/1983
• Issued: 03/18/1986
• Est. Priority Date: 12/05/1983
• Status: Expired due to Term

• Current Assignee: Terumo Medical Corporation A Wholly Owned Subsidiary of Terumo Corporation
• Original Assignee: Terumo Medical Corporation (Terumo Corporation)
• Inventors: Proud, Todd A., Lin, Tom F., Mitchell, Wayne J., Kasper, James D.
• Primary Examiner(s): Howell, Kyle L.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/557,962
• Time in Patent Office: 834 Days
• Field of Search: 128/760, 128/762, 128/763, 128/765, 128/770, 128/764, 128/766, 128/771, 128/643, 604/189, 604/192, 604/197-198, 220/356
• US Class Current: 600/573
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150343 Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes sampling from within body cavities A61B5/150015, A61B5/150045
• CPC Class Codes: A61B 5/150351 Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel caps for bottles or containers in general B65D41/00
• CPC Class Codes: B01L 3/5082 Test tubes per se

Abstract

A collection device for capillary blood includes a collector having an upper end for placement in the close proximity to the punctured skin so that the blood will be conveyed into an integral tubular container. A removable closure is provided at the top of the collector to seal the collector during non-collecting use. The closure is structured so that the container may nest therein while blood is being collected.

Claims

1. A collection device for capillary blood comprising a container portion in the form of a tube having an open uper end and a closed lower end, a collector portion secured to said upper end of said tube in flow communication therewith, said collector portion having upper and lower ends, inner and outer surfaces, and further including means for conveying blood from a user and into said container portion, closure means for selectively sealing the upper end of said collector portion during non-collecting use of said device, said closure means having a recess of a shape and dimension whereby said lower end of said tube is selectively nested into said closure recess during collecting use of said device, said collector portion being integral with said container portion, said upper end of said collector portion being in the form of an arcuate lip extending coaxially therefrom to comprise said blood conveying means, said closure means including an overcap, an axial plug extending downwardly away from said overcap with an annular channel therebetween formed by a wall bridging said overcap and said axial plug, a resilient annular flange extending radially outwardly from said axial plug, said resilient annular flange being dimensioned to snugly slide in said collector portion, said resilient annular flange comprising wipe means for wiping the inner surface of said collector portion when said closure means is applied thereto, said plug sealing said collector portion, said lip fitting in said annular channel whereby said overcap comprises a shield for said collector portion during non-collecting use of said device, stop means on the outer surface of said collector portion located to limit the downward movement of said overcap to maintain said lip spaced from said wall bridging said overcap and said plug, and said plug being hollow with an open upper end to comprise said recess.

2. The device of claim 1 wherein said tube includes an additive, and said closure means being color coded to provide a visual identification of said additive.

3. The set of claim 1 wherein said stop means comprises an annular flange around the outer surface of said collector portion, and volume indicating lines being on said container portion.

4. The device of claim 1 wherein said lower end of said container portion is rounded, and said axial plug terminating in a flat lower wall which is located beyond said overcap.

5. A set of collection devices for capillary blood, each of said devices comprising a container portion in the form of a tube having an open uper end and a closed lower end, a tubular collector portion integral with said upper end of said container portion in flow communication therewith, said collector portion having inner and outer surfaces, said container portion being of lesser diameter than the diameter of said collector portion and being joined thereto by a tapered tubular section, the upper end of said collector portion terminating in an arcuate lip extending co-axially outwardly from a part of said upper end of said collector portion with the remaining part of said upper end being of a lesser length than the length of said arcuate lip, said arcuate lip comprising blood conveying means for directing blood into said collector portion, closure means for selectively sealing said upper end of said collector portion during non-collecting use of said device, said closure means including an overcap in the form of a hollow tube, an axial plug extending downwardly away from and coaxially within said overcap with an annular channel therebetween formed by a wall bridging said overcap and said axial plug, a resilient annular flange extending radially outwardly from said axial plug said resilient annular flange being dimensioned to snugly slide in said collector portion, said resilient annular flange comprising wipe means for wiping the inner suface of said collector portion when said closure means is applied thereto, said plug sealing said collector portion, said arcuate lip fitting in said annular channel whereby said overcap comprises a shield for said collector portion during non-collecting use of said device, said plug being hollow with an open upper end which comprises an exposed tubular recess, said tubular recess being of a diameter with respect to said container portion to permit said container portion to snugly nest in said recess during the collecting use of said device, an additive being included in said device, and each of said closure means being color coded in accordance with the particular additive in its device of said set whereby each closure means provides a readily visual indication of the particular additive included in its device.

6. The set of claim 5 including stop means on the outer surfaces of said collector portion on each of said devices, said stop means being located to limit the downward movement of said overcap to maintain said lip spaced from said wall bridging said overcap and said plug.

7. The set of claim 6 wherein said stop means comprises an annular flange around the outer surface of said collector portion, and volume indicating lines being on said container portion.

8. The set of claim 15 wherein said lower end of each container portion is rounded, and said axial plug terminating in a flat lower wall which is located beyond said overcap.