SYSTEMS AND METHODS FOR PARENTERALLY PROCURING BODILY-FLUID SAMPLES WITH REDUCED CONTAMINATION
First Claim
1. A system for parenterally procuring bodily-fluid samples from a patient with minimal contamination, the system comprising:
- a bodily-fluid withdrawing device, the bodily-fluid withdrawing device comprisinga first sterile needle configured and arranged for insertion into a patient, the first sterile needle comprising a first lumen configured and arranged for withdrawing patient bodily fluids and passing the withdrawn bodily fluids through the first lumen,a second sterile needle in fluid communication with the first sterile needle, the second sterile needle comprising a second lumen configured and arranged for passing withdrawn bodily fluids through the second lumen, andat least one vacuum-sealed pre-sample reservoir, each of the at least one vacuum-sealed pre-sample reservoirs configured and arranged for collecting and storing patient bodily fluid withdrawn from the bodily-fluid withdrawing device; and
at least one vacuum-sealed sample vessel, each of the at least one vacuum-sealed sample vessels configured and arranged for collecting and storing patient bodily fluid withdrawn from the bodily-fluid withdrawing device, each of the at least one sample vessels containing a culture medium.
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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 Prior to withdrawing bodily fluid into the one or more sample vessels for incubation, an initial volume of withdrawn bodily fluid is placed in one or more pre-sample reservoirs and is not used for the incubation in culture media.
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Citations
20 Claims
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1. A system for parenterally procuring bodily-fluid samples from a patient with minimal contamination, the system comprising:
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a bodily-fluid withdrawing device, the bodily-fluid withdrawing device comprising a first sterile needle configured and arranged for insertion into a patient, the first sterile needle comprising a first lumen configured and arranged for withdrawing patient bodily fluids and passing the withdrawn bodily fluids through the first lumen, a second sterile needle in fluid communication with the first sterile needle, the second sterile needle comprising a second lumen configured and arranged for passing withdrawn bodily fluids through the second lumen, and at least one vacuum-sealed pre-sample reservoir, each of the at least one vacuum-sealed pre-sample reservoirs configured and arranged for collecting and storing patient bodily fluid withdrawn from the bodily-fluid withdrawing device; and at least one vacuum-sealed sample vessel, each of the at least one vacuum-sealed sample vessels configured and arranged for collecting and storing patient bodily fluid withdrawn from the bodily-fluid withdrawing device, each of the at least one sample vessels containing a culture medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for parenterally procuring bodily-fluid samples from a patient with reduced contamination, the method comprising:
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inserting a first sterile needle of a bodily-fluid withdrawing device into a selected bodily-fluid-containing portion of the patient, the bodily-fluid withdrawing device also comprising a second sterile needle in fluid communication with the first sterile needle; inserting the second sterile needle into a vacuum-sealed pre-sample reservoir and draining a predetermined amount of bodily fluids into the vacuum-sealed pre-sample reservoir; removing the second sterile needle from the pre-sample reservoir; inserting the second sterile needle into a first vacuum-sealed sample vessel comprising a first culture medium; and draining a predetermined amount of bodily fluids into the first vacuum-sealed sample vessel for incubation in the first culture medium. - View Dependent Claims (16)
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17. A method for parenterally procuring bodily-fluid samples from a patient with reduced contamination, the method comprising:
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inserting a first sterile needle of a bodily-fluid withdrawing device into a selected bodily-fluid-containing portion of the patient, the bodily-fluid withdrawing device comprising a diversion mechanism, a pre-sample reservoir, and a second sterile needle, the diversion mechanism configured and arranged for diverting withdrawn bodily fluids from the first sterile needle to either the second sterile needle or to the pre-sample reservoir; inserting the second sterile needle into a first vacuum-sealed sample vessel; adjusting the diversion mechanism to divert withdrawn patient bodily fluids to the pre-sample reservoir; and adjusting the diversion mechanism to divert withdrawn patient bodily fluids to the first vacuum-sealed sample vessel. - View Dependent Claims (18, 19, 20)
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Specification