Injection port

• US 20070185462A1
• Filed: 02/01/2006
• Published: 08/09/2007
• Est. Priority Date: 02/01/2006
• Status: Active Grant

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Byrum, Randal
• Granted Patent: US 7,762,999 B2
• Time in Patent Office: Days
• US Class Current: 604/288.20
• CPC Class Codes: A61F 5/0056 using injection ports
• CPC Class Codes: A61M 2039/0072 Means for increasing tightness of the septum, e.g. compression rings, special materials, special constructions
• 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 port, which may be used with a gastric banding assembly, having a septum therein that is subjected to multi-directional compression forces to aid in sealing imperfections caused by multiple needle sticks. Multi-directional compression forces, including axial compression and radial compression, may be created by providing a tapered septum. Such multi-directional compression forces may also be created by providing a tapered lead-in for inserting a septum into a port body.

Claims

1. A port comprising:

(a) a port body having a septum retainer therein; and

(b) a septum, wherein said septum includes a tapered surface operably configured to engage said septum retainer such that multi-directional compression forces act upon said septum when housed within said septum retainer.

2. The port of claim 1, wherein said septum is configured from an elastomeric material.

3. The port of claim 2, wherein said septum is configured from silicone.

4. The port of claim 1, wherein said septum retainer further includes a tapered surface corresponding to said tapered surface of said septum.

5. The port of claim 1, wherein said multi-directional compression forces are axial compression forces and radial compression forces applied to said septum such that imperfections caused by needle sticks are substantially self-healed.

6. The port of claim 1, wherein said septum retainer further comprises a collar and a base, where said collar and said base are coupled such that said septum is compressed therein.

7. The port of claim 1, wherein said multi-directional compression forces are created by coupling said septum and said septum retainer with an acorn press.

8. A port comprising:

(a) a port body;

(b) a septum retainer housed within said port body, wherein said septum retainer comprises a base and a collar; and

(c) a septum, wherein said septum is retained within said base and said collar when said septum retainer is assembled such that multi-directional compression forces act upon said septum.

9. The port of claim 8, wherein said septum is configured from an elastomeric material.

10. The port of claim 9, wherein said septum is configured from silicone.

11. The port of claim 8, wherein said septum has a initial diameter greater than that of an internal cavity within said septum retainer, where compressing said septum into said internal cavity creates radial compression forces that act upon said septum.

12. The port of claim 11, wherein said septum has a initial height greater than that of the internal cavity between said base and an annular rim of said collar, where coupling said base and said collar compresses said septum such that axial compression forces are created that act upon said septum.

13. The port of claim 11, wherein said collar further comprises a tapered lead-in operably configured to aid in the insertion and compression of said septum into said internal cavity.

14. The port of claim 13, wherein said septum retainer and said septum are coupled with an acorn press.

15. The port of claim 11, wherein said septum retainer and said septum are coupled with an acorn press.

16. The port of claim 8, wherein said multi-directional compression forces are axial compression forces and radial compression forces.

17. A gastric banding assembly comprising:

(a) a gastric band;

(b) an injection port, where the injection port is coupled to said gastric band with a delivery portion configured therebetween;

(c) a septum retainer housed within said injection port, where said septum retainer comprises a base and a collar; and

(d) a septum, where said septum includes a tapered surface operably configured to engage said septum retainer such that multi-directional compression forces act upon said septum when housed within said septum retainer.

18. The gastric banding assembly of claim 17, wherein said multi-directional compression forces include axial compression forces and radial compression forces.

19. The gastric banding assembly of claim 18, wherein said septum is configured from silicone.

20. The gastric banding assembly of claim 19, wherein said tapered surface includes at least two different angles.