Production of well-mixed surgical slush

摘要

Creation of surgical slush having desirable mechanical properties by chilling a closed slush container with liquid saline and an air gap. The closed slush container having interior surfaces that are smooth and hydrophobic to resist adherence of ice crystals. Moving the closed slush container so the contents move in a complex set of motions rather than constant rotation around a longitudinal centerline of the slush container as the liquid saline is converted into surgical slush with a mixture of liquid saline and ice crystals. Interior surfaces of the closed slush container move into and out of an air gap to help shed any ice crystals forming on the interior surfaces. In some instances, as the orientation of the closed slush container relative to gravity changes over time, different interior surfaces shed the ice crystals. An optional method for delivering surgical slush to the sterile field is included. The full range of the disclosure exceeds the scope of this brief abstract.

主权项

1. A method for making surgical slush; the method comprising:
obtaining a closed slush container having contents of liquid saline and an air gap; the closed slush container having a set of interior walls including a bottom end surface of the closed slush container and a lid end surface of the closed slush container that are smooth and hydrophobic to resist adherence of ice crystals to the set of interior walls; inserting the closed slush container into a cooling compartment with ambient air; and moving the closed slush container in a sequence of repeated cycles of complex movements rather than constant rotation around a fixed axis of rotation to impart accelerations on the contents of the closed slush container so the contents of the closed slush container move in a complex set of motions rather than constant rotation around the fixed axis of rotation of the slush container as at least a portion an exterior of the closed slush container is exposed to ambient air cooled below a freezing temperature for the liquid saline contained in the closed slush container as the liquid saline is converted into surgical slush with a mixture of liquid saline and ice crystals.