Sterile sampling methods and apparatus

a sampling method and liquid technology, applied in the field of sterile sampling methods and apparatuses, can solve the problems of contamination of liquid and inability to carry through to the liquid in the pouch
US20110139276A1Inactive Publication Date: 2011-06-16NOBLE HOUSE GROUP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NOBLE HOUSE GROUP
Publication Date
2011-06-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

An apparatus and method that allow multiple samples of a liquid in a primary container (here called a ‘pouch’) to be taken with minimal danger of contaminating the liquid in the container during the sampling process are disclosed. In an embodiment, a closed sterile sight chamber is connected with the pouch in a sterile manner to allow fluid to flow into the chamber while at the same time allowing air within the chamber to be displaced through a bacterial filter to atmosphere. The connection between the sight chamber and the pouch is then terminated (severed or closed), isolating the pouch from the sampling apparatus. Only then are samples of liquid withdrawn from the sight chamber, while allowing air to flow into the chamber through the bacterial filter.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The current application is a Continuation in Part of co-pending U.S. patent application Ser. No. 10 / 990,820, filed Nov. 17, 2004, which claims priority from Australian provisional patent application serial number 2003906364, filed Nov. 19, 2003.FIELD OF THE INVENTION

[0002] This invention relates to methods and apparatus for the sterile sampling of liquids in containers in ways that minimize the danger of contaminating the liquid in the container by the sampling process. It may be applied to the sampling of platelets and other blood products from collection pouches.

[0003] For convenience and without meaning to exclude other forms of containers, the liquid containers to be sampled will herein be called pouches. As it will be normal for the pouch being sampled to be arranged above the sampling apparatus to take advantage of the hydrostatic head thus provided, it will be convenient to refer to parts of the apparatus as being above or below, or ...

Claims

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