Omaha, NE – The Canadian Patent Office awarded Streck a patent regarding its Cell-Free DNA BCT®, a direct-draw blood collection tube that stabilizes nucleated blood cells. Streck received patent #2,690,651 on October 4, 2016. The patent relates to the use of Streck’s proprietary Cell-Free DNA BCT product for the collection of samples to analyze fetal nucleic acid.

“Our unique blood collection tube is widely considered the gold standard for convenient sample collection, transport and storage of specimens used in cell-free DNA applications by laboratories worldwide,” said Streck CEO and President Connie Ryan.

In addition to the Canadian patent, Streck is awaiting imminent issuance of a European patent and has several patent applications pending in the United States covering its blood collection tube technology.

The Streck tube, Cell-Free DNA BCT, prevents the release of genomic DNA, allowing isolation of high-quality cell-free DNA for a wide range of downstream applications commonly used in clinical research studies, drug discovery and diagnostic assay development. The tube reduces the need for immediate plasma preparation due to its unique stabilization properties. Cell-free DNA is stable for up to 14 days, and circulating tumor cells are stable for up to 7 days at room temperature, allowing convenient sample collection, transport and storage.

Cell-Free DNA BCT is for Research Use Only. Not for use in diagnostic procedures in the U.S.

About Streck, Inc.
Established in 1971, Streck develops and manufactures products for clinical and research laboratories. Streck’s passion for innovation, quality and service has allowed the organization to become a world leader in the development of quality control and diagnostic products that help laboratories ensure accurate and timely results for patients. Streck offers the industry’s leading automated erythrocyte sedimentation rate instrument and is a worldwide supplier of blood collection tubes that standardize methods for sample collection, stabilization and transportation. Expanding product lines include flow cytometry, body fluids and urinalysis with emerging products being developed for the burgeoning field of molecular diagnostics. For more information, visit

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