Device for paracentisis and thoracentisis

Details Device for paracentisis and thoracentisis Device for paracentisis and thoracentisis

1998-04-24

1999-12-07

O'Connor, Cary

Surgery

Diagnostic testing

Liquid collection

604110, 604158, A61B 500

Patent

active

059974869

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 Fluid may be withdrawn via a retractable needle assembly, including a sharp introducing needle and a retractile blunt needle.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(other than through the needle assembly) both when the needle assembly is inserted through the chamber and when it is withdrawn. A beam spring blocks the chamber after the needle assembly is withdrawn so that the device cannot be reused.

REFERENCES:
patent: 5092857 (1992-03-01), Fleischhacker
patent: 5334159 (1994-08-01), Turkel
patent: 5657963 (1997-08-01), Hinchliffe et al.

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