Blood test strip and an intravenous catheter system

• US 8,747,333 B2
• Filed: 07/12/2011
• Issued: 06/10/2014
• Est. Priority Date: 07/15/2010
• Status: Active Grant

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Burkholz, Jonathan Karl
• Primary Examiner(s): DOUGHERTY, SEAN PATRICK
• Application Number:
  US13/181,002
• Publication Number:
  US 20120016213A1
• Time in Patent Office: 1,064 Days
• Field of Search: 600/584, 600/573, 600/576, 600/580, 422/68.1
• US Class Current: 600/573
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14535 for measuring haematocrit
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150213 Venting means
• CPC Class Codes: A61B 5/150251 Collection chamber divided into at least two compartments, e.g. for division of samples injection syringes having more than one chamber A61M5/19; syringes for injection of two or more media A61M5/2448, A61M5/284; sample preparation for further analysis A61B5/150755
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150755 Blood sample preparation for further analysis, e.g. by separating blood components or by mixing
• CPC Class Codes: A61B 5/150992 Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings, valves tubing connectors and couplings A61M39/00

Abstract

A blood test strip useful for venting a closed intravenous system and collecting a blood sample is described herein. The blood test strip includes a blood test strip, one or more vents, and a gripping member coupled to the proximal end of the blood test strip. The one or more vents are disposed between the distal and the proximal portions of the blood test strip.

Claims

1. A blood test strip comprising:

a blood test strip having a distal portion and a proximal portion, the distal portion being configured to be inserted into an access port of an intravenous catheter system;

one or more vents disposed between the distal portion and the proximal portion of the blood test strip, the one or more vents venting gas from within the intravenous catheter system while the distal portion of the blood test strip is inserted into the access port, the one or more vents further including at least one of a hole having dimensions that permits the passage of gas and prevents the passage of blood, a gas permeable membrane, and a channel formed on an outer surface of the blood test strip, the channel having dimensions that permits the passage of gas and prevents the passage of blood; and

a gripping member coupled to the proximal end of the blood test strip for removing the blood test strip from the access port.

2. The blood test strip of claim 1, wherein the one or more vents are further disposed through the gripping member.

3. The blood test strip of claim 1, wherein the gripping member is a cap that is shaped and sized to cover a female luer adapter of the access port.

4. The blood test strip of claim 1, wherein the gripping member is a gripping tab.

5. The blood test strip of claim 1, wherein the blood test strip includes at least one diagnostic reagent thereon.

6. The blood test strip of claim 3, wherein the cap includes threads that couple the cap to the female luer adapter.

7. The blood test strip of claim 1, wherein the gripping member is a cap having an inner diameter that is slightly larger than an outer diameter of the access port thereby allowing the cap to be press fit over the access port.

8. The blood test strip of claim 1, wherein the gripping member is a cap that covers the proximal portion of the blood test strip.

9. The blood test strip of claim 1, wherein the gripping member comprises a body having an outer diameter that is slightly smaller than an inner diameter of the access port thereby allowing the body to be press fit into the access port.

10. The blood test strip of claim 9, wherein the one or more vents extend from the proximal portion through the body.

11. The blood test strip of claim 1, wherein the distal portion is configured to extend through a septum of the access port when the distal portion is inserted into the access port.

12. The blood test strip of claim 1, wherein the one or more vents comprise one or more of holes, channels, indents, or capillary tubes.

13. The blood test strip of claim 12, wherein the one or more holes, channels, indents, or capillary tubes includes a gas permeable membrane.

14. The blood test strip of claim 1, wherein the blood test strip is pre-installed into the access port such that a clinician need not clamp or unclamp a tubing of the intravenous catheter system prior to removing the blood test strip from the access port.