Septumless implantable treatment material device
First Claim
Patent Images
1. An implantable access device comprising:
- A. a biocompatible housing having at least one septumless resealable entry port and an internal substantially cylindrical reservoir in the housing, said reservoir being defined by a lateral surface extending about a central axis and a bottom surface and being in communication with said entry port;
B. an outlet extending through said housing along an outlet channel axis from a point on said lateral surface of said reservoir, andC. a filter assembly disposed in said reservoir, said filter assembly including a substantially cylindrical fluid permeable first wall interior to and spaced apart from said lateral surface of said reservoir, said first wall establishing a first annular chamber between said first wall and said lateral surface and a first reservoir chamber interior to said first wall, said first annular chamber and said first reservoir chamber being in fluid communication only through said first wall, and said outlet being in direct fluid communication with said first annular chamber.
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Abstract
A septumless implantable access device suitable for delivering a liquid medication to a site remote from the site of implantation is disclosed. The device includes a biocompatible housing having at least one resealable entry port and a cylindrical reservoir in communication with the entry port. An outlet extends from the reservoir to the housing. A filter assembly is disposed within the reservoir for removing particulate material from fluid injected into the entry port. The implantable access device may also include an infusion pump apparatus coupled to the access device.
177 Citations
14 Claims
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1. An implantable access device comprising:
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A. a biocompatible housing having at least one septumless resealable entry port and an internal substantially cylindrical reservoir in the housing, said reservoir being defined by a lateral surface extending about a central axis and a bottom surface and being in communication with said entry port; B. an outlet extending through said housing along an outlet channel axis from a point on said lateral surface of said reservoir, and C. a filter assembly disposed in said reservoir, said filter assembly including a substantially cylindrical fluid permeable first wall interior to and spaced apart from said lateral surface of said reservoir, said first wall establishing a first annular chamber between said first wall and said lateral surface and a first reservoir chamber interior to said first wall, said first annular chamber and said first reservoir chamber being in fluid communication only through said first wall, and said outlet being in direct fluid communication with said first annular chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification