Device for paracentisis and thoracentisis
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United States of America Patent
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Dec 7, 1999
Grant Date -
N/A
app pub date -
Apr 24, 1998
filing date -
Apr 24, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Apparatus for removing fluid from the body of a patient, such as in paracentesis and thoracentesis. Fluid may be withdrawn via a retractable needle assembly, including a sharp introducing needle and a retractile blunt needle. The needle assembly is housed in a housing having a chamber with two oriented grommets that prevent fluid flow through the chamber (other than through the needle assembly) both when the needle assembly is inserted through the chamber and when it is withdrawn. A beam spring blocks the chamber after the needle assembly is withdrawn so that the device cannot be reused.
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