Portcatheter

Details Portcatheter Portcatheter

1992-09-03

1994-04-26

Weiss, John G.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

6048911, A61M 532

Patent

active

053062558

ABSTRACT:
A subcutaneous portcatheter for injecting fluid into a patient through a catheter tube. The tube connects to a generally flat housing having a central chamber surrounded by an annular chamber containing a band filter. A soft needle-pierceable cover overlies the chambers. The central chamber connects to the annular chamber through a hole in the circular wall separating the two chambers, the hole being located diametrically opposite the outlet to the catheter tube. Fluid injected through the cover into the central chamber flows through the hole, through the filter, into the annular chamber outside the filter, exiting the housing through the outlet to the catheter tube.

REFERENCES:
patent: 4784646 (1988-11-01), Feingold
patent: 4904241 (1990-02-01), Bark
patent: 4929236 (1990-05-01), Sampson
patent: 5006115 (1991-04-01), McDonald
patent: 5137529 (1992-08-01), Watson et al.

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