System and method for aseptic collection of mammalian amniotic fluid

A system for aseptic collection of mammalian amniotic fluid, comprising:

• a cannula having an attachment end and opposite thereto an external end with a central passage passing therebetween;
• a first hollow chamber disposed about the central passage and providing a first concentric opening proximate to the attachment end;
• a second hollow chamber disposed about the first hollow chamber and providing a second concentric opening proximate to the attachment end;
• at least one vent between the first hollow chamber and the second hollow chamber;
• a suction port disposed in an outer wall of the cannula proximate to the external end, the suction port in communication with the second hollow chamber and structured and arranged to permit at least a partial suction to be established within the first hollow chamber and the second hollow chamber, the attachment end thereby suctionally attached to a surface when the attachment end is disposed upon the surface.

A system for aseptic collection of mammalian amniotic fluid, comprising:

• a cannula having a double wall defining a hollow chamber about a central passage, the cannula having an attachment end and an external end, the double wall further defining a concentric opening about the central passage at the attachment end;
• a port disposed adjacent to the external end, the port structured and arranged to permit at least a partial suction to be established within the hollow chamber, the attachment end thereby suctionally attached to a surface when the attachment end is disposed upon the surface;
• the central passage providing access to a central portion of the surface surrounded by the concentric opening of the hollow chamber;
• and
• an extraction needle to be disposed within the central passage of the cannula and presented to the central portion of the surface, the extraction needle structured and arranged to puncture the central portion of the surface and extract amniotic fluid there beneath.

A method for aseptic collection of mammalian amniotic fluid of a pregnant mammal having a birth canal, comprising:

• providing a cannula, the cannula having;
• an attachment end and external end, the attachment end providing at least one concentric opening to at least one hollow chamber disposed about a central passage, the at least one hollow chamber having a port disposed adjacent to the external end, the port structured and arranged to permit at least a partial suction to be established within the at least one hollow chamber, the attachment end thereby suctionally attached to a tissue surface when the attachment end is disposed upon the tissue surface;
• the central passage providing access to a central portion of the tissue surface surrounded by the concentric opening of the hollow chamber;
• and
• an extraction needle to be disposed within the central passage of the cannula and presented to the central portion of the tissue surface, the extraction needle structured and arranged to puncture the central portion of the tissue surface and extract amniotic fluid there beneath;
• disposing the attachment end of the cannula through the birth canal to seat upon a tissue surface within the pregnant mammal;
• developing a suction within the at least one hollow chamber, the suction drawing at least a portion of the tissue surface into the at least one concentric opening of the at least one hollow chamber to temporarily attach and seal the at least one concentric opening to the tissue surface;
• disposing the extraction needle through the central passage of the cannula and through central portion of the tissue surface;
• extracting amniotic fluid from below the central portion of the tissue surface through the extraction needle;
• and
• removing the extraction needle.