Implantable catheter port

Details Implantable catheter port Implantable catheter port

2008-06-09

2011-12-20

Mehta, Bhisma (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S288010, C604S288030, C604S288040, C604S890100, C604S891100

Reexamination Certificate

active

08079990

ABSTRACT:
A single or multi-port vascular access device including one or more reservoirs each covered by a needle-penetrable, self-sealing septum. The one or more reservoirs each open to an outlet in a stem to which the catheter is attached. The reservoir may be generally circular or ellipsoid in shape and large enough so that fluid movement into and out of the needle is unimpeded. In order to maximize flow between the reservoir and catheter and to minimize any regions of impeded or low fluid flow where coagulation or cell shearing may occur, the fluid passage leading from the reservoir through the outlet into the catheter is defined by unique tapered and tangential geometries. For example, the outlet surface may be globally tangent along the entire reservoir surface, or may be globally tangent along only one side of the reservoir surface.

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