Implantable vascular access device

• US 20030181878A1
• Filed: 02/25/2003
• Published: 09/25/2003
• Est. Priority Date: 12/07/1998
• Status: Active Grant

• Current Assignee: Primo Medical Group, Inc.
• Original Assignee: Std Med, Inc.
• Inventors: Tallarida, Steven J., Ettlinger, Mark
• Granted Patent: US 7,713,251 B2
• Time in Patent Office: Days
• US Class Current: 604/288.04
• CPC Class Codes: A61M 2039/0211 with multiple chambers in a single site
• CPC Class Codes: A61M 2039/0226 having means for protecting the interior of the access site from damage due to the insertion of a needle
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

The present invention provides an improved vascular access port comprising a port base with a metallic dish insert molded (or bonded) into the bottom of the reservoir. In one embodiment, a single reservoir is provided. In another embodiment, plural reservoirs are provided. The metallic bottom of the reservoir provides a hard surface that will resist abrasion and puncture by the access needles used to infuse medication or withdraw blood. Additionally, the single and dual ports can include exit ports that are intended to better anatomically fit into the subcutaneous areas around muscle tissue.

Claims

1. An implantable access port, comprising a housing member defining at least one fluid chamber, a cup member attached to said housing member and defining the bottom of said fluid chamber, a permeable septum member attached to said housing and defining the top of said fluid chamber and having a tactile or visual location marker portion on the outer surface thereof, and an exit port to permit egress of fluid from within said fluid chamber.

2. An access port as claimed in claim 1, further comprising a stem member in fluid communication with said exit port.

3. An access port as claimed in claim 1, wherein said cup member being formed of a material selected from titanium, stainless steel and ceramic.

4. An access port as claimed in claim 1, wherein said septum being formed of silicon, and permitting the ingress and egress of needles to deliver fluid to said fluid chamber.

5. An access port as claimed in claim 1, wherein said housing being dimensioned so as to be placed within a predetermined position under skin.

6. An access port as claimed in claim 1, wherein said housing being formed of a material selected from titanium, stainless steel and ceramic.

7. An access port as claimed in claim 1, wherein said cup member including a flange member on the bottom portion thereof defining an opening, said opening defining said exit port.

8. An access port as claimed in claim 1, further comprising a ring member located on the top portion of said housing member and surrounding said septum, said ring member including flange portions dimensioned to urge a needle toward said septum and to hold said septum against said housing.

9. An access port as claimed in claim 1, wherein said tactile or visual location marker portion of said septum comprising a nipple on the outer surface thereof.

10. An access port as claimed in claim 1, wherein said tactile or visual location marker portion of said septum comprising a concave portion on the outer surface thereof.