Implantable device

• US 5,092,849 A
• Filed: 01/24/1990
• Issued: 03/03/1992
• Est. Priority Date: 08/25/1987
• Status: Expired due to Term

• Current Assignee: AngioDynamics, Inc.
• Original Assignee: Shiley Infusaid Incorporated
• Inventors: Sampson, Edward J.
• Primary Examiner(s): Yasko, John D.
• Application Number:
  US07/469,895
• Time in Patent Office: 769 Days
• Field of Search: 604/175, 604/93, 604/86, 604/283
• US Class Current: 604/175
• 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

A device that is implantable to provide access to multiple body sites for the administration or withdrawal of fluids. A hollow port has a self sealing septum on one end and an outlet at an opposite end. A catheter is connected to the outlet. The septum and outlet are positioned to be substantially in-line.

Claims

1. A body implantable access device comprising;

a cylindrical hollow port, said port having an inlet, an internal cavity and an outlet, a self sealing septum subcutaneously disposed in and covering said inlet, said septum having a shaped target face and positioned in said port at substantially a right angle to said outlet such that a needle puncturing a skin line and said target face of said septum will be substantially in line with said outlet.

2. The implantable device of claim 1 further comprising means to mount a catheter at said outlet and a flexible catheter mounted on said means to mount a catheter to provide fluid access to a portion of the body in which said device is implanted.

3. The implantable device of claim 2 wherein said means to mount a catheter comprises a hollow connector one end of which is inserted into said outlet of said port, said hollow connector having an internal wall aligned with a wall of said internal cavity.

4. The implantable device of claim 1 further comprising means to anchor said port subcutaneously at an angle substantially parallel with the skin line at the implantation site.

5. The implantable device of claim 4 wherein said means to anchor comprises first and second shoulder portions provided on said port, said shoulder portions extending circumferentially around said port.

6. The implantable device of claim 4, wherein said means to anchor comprises a tie-down member attached to said body, said tie-down member having extending surfaces defining a suture area.

7. The implantable device of claim 4 wherein said means to anchor comprises a tie-down member having means to mount to said body, said tie-down member further including a flat portion defining a suture area.

8. The implantable device of claim 1 wherein said self sealing septum comprises a generally spherically shaped body having an annular surface, said annular surface engaging said hollow port.

9. The implantable device of claim 8 wherein said port further comprises an annular recess having an annular protrusion and defining said inlet, said septum deformable in said annular surface by said annular protrusion to lock and seal said septum in place in said opening.

10. The implantable device of claim 1, wherein said self-sealing septum comprises a generally cylindrical body having a convex front and rear face.

11. A body implantable device providing access to an internal portion of a living body for the administration and withdrawal of fluids comprising:

a hollow port made of a biocompatible material, said port having wall portions defining an inlet and an outlet, axially aligned with each other, a self-sealing septum member subcutaneously positioned in and covering said inlet, said port having an infusion chamber upstream of said outlet and blocked from the inlet by said self sealing septum, and said self sealing septum oriented in said inlet at substantially a right angle to said outlet such that a needle passing through skin and said septum will stop in said infusion chamber and will be substantially in line with said outlet.

12. The implantable device of claim 11 further comprising means to mount a catheter at said outlet and a flexible catheter mounted on said means to mount a catheter to provide fluid access to a portion of the body in which said device is implanted.

13. The implantable device of claim 12 wherein said means to mount a catheter comprises a hollow connector one end of which is inserted into said outlet of said port and the other end having annular barbs engaging said catheter.

14. The implantable device of claim 11 further comprising means to anchor said port subcutaneously at an angle substantially parallel with the skin line at the implantation site.

15. The implantable device of claim 14 wherein said means to anchor comprises first and second shoulder portions provided on said port, said shoulder portions extending circumferentially around said port.

16. The implantable device of claim 11 wherein said self sealing septum member comprises a member having a convex striking face and an annular flat surface, said annular flat surface engaging said port body for locking and sealing said septum into place.

17. The implantable device of claim 16 wherein said port body inlet comprises an annular recess having an annular protrusion, said self sealing septum member having an annular flat surface, said annular protrusion engaging and deforming said annular flat surface to lock said self sealing septum member into position in said port body.

18. The implantable device of claim 11, wherein said self-sealing septum member comprises a generally cylindrical member having a convex striking face.

19. The implantable device of claim 11, wherein said self-sealing septum member comprises a conical member having a convex striking surface.

20. The implantable device of claim 19, wherein said infusion chamber has a conical interior wall.