Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
First Claim
1. A method of using a sample procurement device for obtaining bodily-fluid samples from a patient, the sample procurement device including a needle having a lumen configured for insertion into the patient, a first reservoir configured to be fluidically coupled to the needle via a first flow path, and a second reservoir configured to be fluidically coupled to the needle via a second flow path, the method comprising:
- inserting the needle into the patient;
establishing fluid communication between the needle and the first reservoir via the first flow path;
receiving from the patient a first volume of bodily-fluid into the first reservoir, the first volume of bodily-fluid being greater than the volume of the lumen of the needle and less than 5 ml;
as a result of filling the first reservoir, automatically establishing fluid communication between the needle and the second reservoir via the second flow path; and
receiving from the patient a second volume of bodily-fluid into the second reservoir,whereby filling the first reservoir sequesters contaminants present in the first volume of bodily-fluid, thereby reducing contamination in the bodily-fluid received into the second reservoir.
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Accused Products
Abstract
The present invention is directed to the parenteral procurement of bodily-fluid samples. The present invention is also directed to systems and methods for parenterally procuring bodily-fluid samples with reduced contamination from dermally-residing microbes. In some embodiments, a bodily-fluid withdrawing system is used to withdraw bodily fluid from a patient for incubation in culture media in one or more sample vessels. Prior to withdrawing bodily fluid into the one or more sample vessels for incubation, an initial volume of withdrawn bodily fluid is placed in one or more pre-sample reservoirs and is not used for the incubation in culture media.
150 Citations
38 Claims
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1. A method of using a sample procurement device for obtaining bodily-fluid samples from a patient, the sample procurement device including a needle having a lumen configured for insertion into the patient, a first reservoir configured to be fluidically coupled to the needle via a first flow path, and a second reservoir configured to be fluidically coupled to the needle via a second flow path, the method comprising:
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inserting the needle into the patient; establishing fluid communication between the needle and the first reservoir via the first flow path; receiving from the patient a first volume of bodily-fluid into the first reservoir, the first volume of bodily-fluid being greater than the volume of the lumen of the needle and less than 5 ml; as a result of filling the first reservoir, automatically establishing fluid communication between the needle and the second reservoir via the second flow path; and receiving from the patient a second volume of bodily-fluid into the second reservoir, whereby filling the first reservoir sequesters contaminants present in the first volume of bodily-fluid, thereby reducing contamination in the bodily-fluid received into the second reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of obtaining a bodily-fluid sample from a patient with reduced contamination, the method comprising:
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establishing fluid communication between the patient and a port of a sample procurement device, the sample procurement device including a first reservoir configured to be fluidically coupled to the needle via a first flow path and a second reservoir configured to be fluidically coupled to the needle via a second flow path, the first flow path and the second flow path connected at a junction; establishing fluid communication between the port and the first reservoir via the first flow path; receiving from the patient a first volume of bodily-fluid into the first reservoir; as a result of filling the first reservoir, automatically sequestering the first volume of bodily-fluid in the first reservoir; establishing fluid communication between the port and the second reservoir via the second flow path; and receiving from the patient a second volume of bodily-fluid into the second reservoir, whereby sequestering the first volume of bodily-fluid sequesters contaminants present in the first volume of bodily-fluid, thereby reducing contamination in the bodily-fluid received into the second reservoir. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method of obtaining a bodily-fluid sample from a patient with reduced contamination, the method comprising:
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establishing fluid communication between the patient and a sample procurement device with a lumen-containing device, the sample procurement device including a first reservoir and a second reservoir; receiving from the patient a first volume of bodily-fluid into the first reservoir via a first flow path; as a result filling the first reservoir, automatically sequestering the first volume of bodily-fluid in the first reservoir, the first volume of bodily-fluid being greater than the volume of the lumen-containing device and less than 5 ml; establishing fluid communication between the lumen-containing device and the second reservoir via a second flow path; receiving from the patient a second volume of bodily-fluid into the second reservoir; and transferring at least a portion of the second volume of bodily-fluid from the second reservoir to a sample vessel, whereby sequestering the first volume of bodily-fluid sequesters contaminants present in the first volume of bodily-fluid, thereby reducing contamination in the bodily-fluid received into the second reservoir. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A method of using a sample procurement device for obtaining bodily-fluid samples from a patient, the sample procurement device including a lumen-containing device configured to establish fluid communication with the patient, a first reservoir configured to be fluidically coupled to the lumen-containing device via a first flow path, and a second reservoir configured to be fluidically coupled to the lumen-containing device via a second flow path, the first reservoir and the second reservoir being connected at a junction, the method comprising:
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establishing fluid communication between the patient and the first reservoir via the lumen-containing device and the first flow path; receiving from the patient a first volume of bodily-fluid into the first reservoir; as a result of filling the first reservoir, automatically establishing fluid communication between the patient and the second reservoir via the lumen-containing device and second flow path; and receiving from the patient a second volume of bodily-fluid into the second reservoir, whereby filling the first reservoir sequesters contaminants present in the first volume of bodily-fluid, thereby reducing contamination in the bodily-fluid received into the second reservoir. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification