Blood collection kit

• US 6,287,265 B1
• Filed: 11/09/1999
• Issued: 09/11/2001
• Est. Priority Date: 06/23/1999
• Status: Expired due to Fees

• Current Assignee: Cindy L. Gleason
• Original Assignee: Cindy L. Gleason
• Inventors: Gleason, Cindy L.
• Primary Examiner(s): Lacyk, John P.
• Assistant Examiner(s): SZMAL, BRIAN SCOTT
• Application Number:
  US09/436,408
• Time in Patent Office: 672 Days
• Field of Search: 600/573, 600/575, 600/577, 600/579, 604/248, 604/539
• US Class Current: 600/573
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150221 Valves
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• 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
• CPC Class Codes: A61B 5/155 Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals devices loaded with multiple lancets simultaneously A61B5/15146
• CPC Class Codes: A61B 5/412 Detecting or monitoring sepsis
• CPC Class Codes: A61M 39/045 pre-slit to be pierced by blunt instrument
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/223 Multiway valves

Abstract

A whole blood sampling kit for obtaining blood samples from a central line. The system is comprised of three syringes, a 4-way stopcock body, and a needle or blunt cannula access devise. The three syringes are a 1 cc heparinized syringe for blood sampling, an empty 3 cc blood and infusing fluid aspirating syringe, and a 3 cc flush filled syringe. The syringes are attached to three female ports on the top of the kit'"'"'s stopcock. A lever on the kit'"'"'s stopcock points to the female port and syringe it is on to. A needle or blunt cannula is attached to the male adapter on the bottom of the kit'"'"'s stopcock. The access device connected to the male adapter has a locking system with a matching sample site. The whole kit, via the needle or blunt cannula, attaches to a central line'"'"'s sample site for withdrawing blood.

Claims

1. A blood sampling kit for obtaining at least one blood sample from a central line comprising:

a) a first syringe obtaining said at least one blood sample;

b) a second blood and infusing fluid aspirating syringe;

c) a third flush-filled syringe;

d) a four-way stopcock assembly coupled to each of said first, second and third syringes, the stopcock assembly including a selection device for selecting which of the syringes is allowed to transfer blood or fluid through the stopcock assembly;

e) an access device coupled to stopcock assembly, the access device assisting in the transfer of fluid or blood to or from the blood sampling kit and the central line, the access device including a needle or blunt cannula assisting in the transfer of fluid or blood, a shroud that surrounds and protects the needle or the blunt cannula, and a fastening device for securing the blood sampling kit.

2. The blood sampling kit of claim 1 wherein the first syringe is about a 1 cc syringe, the second syringe is about a 3 cc syringe, and the third syringe is about a 3 cc syringe.

3. The blood sampling kit of claim 2 wherein the access device is connected to a male adapter and wherein the access device has a sample site.

4. The blood sampling kit of claim 3 wherein at least one stopcock cap is provided to protect and maintain sterilization of at least one port on said four-way stopcock assembly.

5. The blood sampling kit of claim 4 wherein at least one access device cap is provided to protect and maintain sterilization of the access device.

6. A method of sampling blood from a patient comprising the steps of:

a) cleaning an access port on a central line;

b) attaching a blood sampling kit to the sample site said sampling kit having at least a first, a second and a third syringe connected thereto;

c) preventing infusing fluids from being infused into the central line;

d) positioning a valve assembly to connect a first syringe to the central line fluid flow through an access device;

e) aspirating blood and infusing fluids from the first syringe to bring whole blood to the access port;

f) positioning the valve assembly to connect a second syringe to the central line fluid flow through the access device;

g) aspirating whole blood from the second syringe for the blood sample;

h) positioning the valve assembly to connect the first syringe to the central line fluid flow through the access port;

i) returning the blood mixed with infusing fluids from the first syringe back to the patient;

j) positioning the valve assembly to connect a third syringe to the central line fluid flow through the access device;

k) flushing the central line from the third syringe until it is substantially clear of blood;

l) preventing any further fluid transfer from the sample site; and

m) removing the blood collection kit from the sample site.

7. The method of claim 6 wherein the sample site is near the central line.

8. The method of claim 7 wherein the central line is an arterial line.

9. A blood sampling kit for obtaining at least one blood sample from a central line comprising:

a) at least a first, a second, and a third syringe;

b) a valve assembly coupled to each of said first, second and third syringes, the valve assembly including a selection device for selecting which of the syringes is allowed to transfer blood or fluid through the valve assembly;

c) an access device coupled to the valve assembly, the access device assisting in the transfer of fluid or blood to or from sampling kit and the central line.

10. The blood sampling kit of claim 9 wherein the first syringe is about a 1 cc syringe, the second syringe is about a 3 cc syringe, and the third syringe is about a 3 cc syringe.

11. The blood sampling kit of claim 10 wherein the access device is connected to a male adapter and wherein the access device has a sample site.

12. The blood sampling kit of claim 11 wherein at least one valve cap is provided to protect and maintain sterilization of at least one port on said valve assembly.

13. The blood sampling kit of claim 12 wherein at least on access device cap is provided to protect and maintain sterilization of the access device.

14. The blood sampling kit of claim 9 wherein the first syringe is a blood sample syringe, the second syringe is a blood and infusing fluid aspirating syringe, and the third syringe is a flush-filled syringe.

15. The blood sampling kit of claim 9 wherein the value assembly is a stopcock assembly.

16. The blood sampling kit of claim 9 wherein the valve assembly is a four-way stopcock assembly.