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Primary Examiner: Wyse, Thomas G.
Assistant Examiner: Sadowski, David R.
Attorney: Collins; Henry W., Flattery; Paul, Gerstman; George

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Title: Membrane diffusion device with external compression

Abstract: A membrane diffusion device, such as a membrane oxygenator, is disclosed which comprises a stack of flat membrane wall pairs and flat membrane supports in alternating, interleaving relation. The casing includes a pair of opposed sidewalls that are substantially parallel to flat sides of the stack, and a pair of substantially vertical crimps are formed on each of the sidewalls to provide external compression on the end portions of the stack.


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Inventors: Nauman, Mark R. (McHenry, IL, US)

Application Number: 937664
Filing Date: 1978-08-28
Publication_date: 1980-04-22
Assignee: Baxter Travenol Laboratories, Inc. (Deerfield, IL)
Primary Class(es): 210/321.84 206/565, 422/48
Other Classes:
US Patent Ref:
1667793May, 1928Mauser220/72.
3370710Feb, 1968Blueml, Jr.210/321.
3513982May, 1970Carter et al.210/493.
3757955Sep, 1973Leonard210/321.
3879293Apr, 1975Wol, Jr. et al.210/321.
4039455Aug, 1977Bardin et al.210/321.
4061470Dec, 1977Leonard422/48.
4062778Dec, 1977Riede210/321.

Other Refs: Other References: American Heritage Dictionary, W. Morris, Editor, Houghton-Mifflin Co., Boston, 1969, pp. 313 and 288.