Autotransfusion device with twisted collection bag

Details Autotransfusion device with twisted collection bag Autotransfusion device with twisted collection bag

1982-11-16

1985-02-19

Truluck, Dalton L.

Surgery

Blood drawn and replaced or treated and returned to body

222104, 222390, 604135, 604214, A61M 103

Patent

active

045003084

ABSTRACT:
An autotransfusion device having a rigid cylindrical housing with an end wall, a movable piston located in the housing, and a deformable collection bag attached between the end wall and the piston is disclosed. When the piston is moved towards the end wall, collapsing the collection bag, the piston is rotated to twist the collection bag and prevent the collection bag from being seized between the housing wall and the piston. The autotransfusion device also includes an automatic air purge unit and an auxiliary air purge unit which is used when the automatic air purge unit malfunctions. In order to facilitate the filling of the collection bag to capacity, a length to diameter ratio of 1.1 is preferred.

REFERENCES:
patent: 1959365 (1934-05-01), Jeffreys
patent: 2699167 (1955-01-01), Raiche
patent: 2950717 (1960-08-01), Bouet
patent: 3048171 (1962-08-01), Grau
patent: 3223289 (1965-12-01), Bouet
patent: 4033345 (1977-07-01), Sorensen et al.
patent: 4424053 (1984-01-01), Kurtz et al.

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