Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Bench scale
Reexamination Certificate
2005-02-22
2005-02-22
Soderquist, Arlen (Department: 1743)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Bench scale
C250S363030, C376S199000, C376S201000, C376S202000, C422S081000, C422S903000, C436S056000, C436S057000
Reexamination Certificate
active
06858187
ABSTRACT:
A device for preparing a radioactive water solution to be infused in a patient includes a reaction chamber (13) in which radioactive water vapour is formed by the catalysed reaction of oxygen gas containing oxygen-15 and hydrogen gas. A diffusion chamber (14) is provided which allows the radioactive water to penetrate, but which prevents the penetration of gasses. Tubes (26) and valves (16, 18) direct a sterile saline solution to the diffusion chamber (14), and then direct the saline solution containing radioactive water out from the diffusion chamber to a patient, or to a decay coil (22) being a part of the device. A measuring instrument is provided for measuring the radioactivity of the radioactive solution. The device is characterized in that the diffusion chamber (14), the tubes (26) the valves (16, 18), the radioactivity measuring instrument (17), and preferably also the reaction chamber913), are mounted in the same frame50, whereby they form a separate unit i.e. a water module (30), which as one entity can be detached from the lead shield (10) surrounding the device.
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Bradley et al, “An Automated [15O]H2O Production and Injection System for PET Imaging”,Nucl. Med. Biol.,vol. 22, No. 2, 1995, pp. 24-249. (no month).
Clark John
Sipila Hannu
Tochon-Danguy Henri
Wickstrom Tom
Hidex Oy
Nixon & Vanderhye P.C.
Oy Fluorplast AB
Soderquist Arlen
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