Vascular access port
OwnerMichael J. Dalton, Jordan M. Dalton +1inventors
InventorsMichael J. Dalton, Jordan M. Dalton, Natan A. Pheil
Life of this patent
Estimating the term…
Abstract
An implantable infusion port comprising a non planar septum, a fluid reservoir of a substantially spherical shape, inlet means to access the reservoir, and optimized outlet means from the reservoir. The present invention provides for a reservoir that precludes angular junctions between portions of the reservoir which can lead to eddies, countercurrents, and stagnation, thereby creating a more laminar and efficient flow pattern within the reservoir.
Claims46
An improved vascular access port comprising:
- a) a rigid reservoir base having a partial hemispherical interior bottom surface;
- b) outlet means;
- and c) an elastomeric, needle penetrable, non-planar septum wherein the interior of the septum is partially hemispherical such that when the septum seals to the reservoir base forms a spherically shaped reservoir.
An improved vascular access port comprising:
- a) a rigid reservoir base having a partial hemispherical interior bottom surface;
- b) outlet means;
- and c) an elastomeric, needle penetrable, non-planar septum wherein the exterior of the septum is convex and the interior of the septum is partially hemispherical such that when the septum seals to the reservoir base forms a semi-spherically shaped reservoir.
An improved vascular access port comprising:
- a) a rigid reservoir base having a partially hemispherical interior bottom surface;
- b) outlet means;
- and c) an elastomeric, needle penetrable, non-planar septum that is partially hemispherical that when assembled to the reservoir base forms a substantially spherical interior surface in the top portion of the reservoir.
An improved vascular access port comprising:
- a) a rigid reservoir base having a substantially hemispherical interior bottom surface;
- b) outlet means;
- and c) an elastomeric, needle penetrable, non-planar septum that is substantially hemispherical that when assembled to the reservoir base forms a substantially spherically shaped reservoir.
An improved vascular access port comprising:
- a) a rigid reservoir base having a partial hemispherical interior bottom surface;
- b) outlet means;
- and c) an elastomeric, needle penetrable, non-planar septum that is partially hemispherical that when assembled to the reservoir base forms a spherically shaped reservoir, wherein said reservoir provides for the improved vascular access port to have a clearance volume independent of flow rate.
An improved vascular access port comprising:
- g) a rigid reservoir base having a partial hemispherical interior bottom surface wherein the portion of the reservoir base leading to the outlet means is rounded;
- h) outlet means;
- and i) an elastomeric, needle penetrable, non-planar septum that is partially hemispherical that when assembled to the reservoir base forms a spherically shaped reservoir.
Dependencies are inferred from the claim text.