Surgery – Container for blood or body treating material – or means used... – Bag type
Patent
1995-05-08
1996-11-12
Weiss, John G.
Surgery
Container for blood or body treating material, or means used...
Bag type
604 4, 604122, 604406, 604122, 128DIG3, A61B 1900
Patent
active
055735266
ABSTRACT:
A soft shell reservoir bag is provided as a storage reservoir for blood in a bypass extracorporeal circuit during open heart surgery. The reservoir bag is constructed to allow for the easy venting of air and to prevent the accidental delivery of air to patient. Blood enters the reservoir through the inlet port, passes through the microscreen and exits through the outlet port to a pump which feeds an oxygenator. The shape of the bag and component disposition give the bag its main advantages. The inlet port is positioned above the outlet port which puts a larger volume above the outlet port which promotes mixing and no vortex. Also the shape above the outlet port gives the bag a low hold-up volume and lower resistance to keep the bag open. The shape also promotes low venous resistance.
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Minntech Corporation
Snow Bruce E.
Weiss John G.
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