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Charles H Zierdt

from Rockville, MD
Deceased

Charles Zierdt Phones & Addresses

  • 4100 Norbeck Rd, Rockville, MD 20853 (301) 929-3350
  • 4707 Coachway Dr, Rockville, MD 20852 (301) 881-1600
  • N Bethesda, MD
  • Middletown, MD
  • Port Saint Lucie, FL
  • Jensen Beach, FL

Publications

Us Patents

Lysis Filtration Culture Chamber

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US Patent:
44355050, Mar 6, 1984
Filed:
Sep 28, 1982
Appl. No.:
6/426141
Inventors:
Charles H. Zierdt - Rockville MD
Assignee:
The United States of America as represented by the Department of Health
and Human Services - Washington DC
International Classification:
C12Q 104
US Classification:
435 34
Abstract:
An apparatus for blood sample treatment involves lysis, filtration and culture, the apparatus being in the form of a unitary culture chamber assembly consisting of an upper chamber for receiving a blood sample, this upper chamber receiving lysing solution squeezed from an attached bag which is subsequently detached. The upper chamber is located over and is in telescopic engagement with a lower chamber, and then vacuum is applied to the lower chamber to accomplish filtration. The lower chamber is then detached and discarded. The upper chamber is sealed and an attached bag of culture medium is squeezed to introduce the medium into the upper chamber from the bag. This second bag is detached, leaving the upper chamber as a complete blood culture system.

Lysis Filtration Culture Chamber

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US Patent:
44106300, Oct 18, 1983
Filed:
Dec 11, 1981
Appl. No.:
6/330020
Inventors:
Charles H. Zierdt - Rockville MD
Assignee:
The United States of America as represented by the Department of Health
and Human Services - Washington DC
International Classification:
C12M 300
US Classification:
435284
Abstract:
An apparatus for blood sample treatment involves lysis, filtration and culture, the apparatus being in the form of a unitary culture chamber assembly consisting of an upper chamber for receiving a blood sample, this upper chamber receiving lysing solution squeezed from an attached bag which is subsequently detached. The upper chamber is located over and is in telescopic engagement with a lower chamber having a pointed hollow needle engageable through a rubber diaphragm in the bottom of the upper chamber when the upper chamber is pressed down. This is done after complete blood lysis, and then vacuum is applied to the lower chamber to accomplish filtration. The lower chamber is then detached and discarded. The diaphragm is sealingly covered and an attached bag of culture medium is squeezed to introduce the medium into the upper chamber from the bag. This second bag is detached, leaving the upper chamber as a complete blood culture system.
Charles H Zierdt from Rockville, MDDeceased Get Report