IMPLANTABLE ACCESS PORT DEVICE HAVING A SAFETY CAP

• US 20100217198A1
• Filed: 03/30/2010
• Published: 08/26/2010
• Est. Priority Date: 04/17/2008
• Status: Active Grant

• Current Assignee: Apollo Endosurgery US, Inc. (Boston Scientific Corporation)
• Original Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Inventors: Olroyd, Craig, Mudd, Christopher S., Franklin, Ethan
• Granted Patent: US 9,023,063 B2
• Time in Patent Office: Days
• US Class Current: 604/175
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61F 5/0056 using injection ports
• CPC Class Codes: A61M 2039/009 Means for limiting access to the septum, e.g. shields, grids
• CPC Class Codes: A61M 2039/0223 having means for anchoring the subcutaneous access site
• CPC Class Codes: A61M 2039/0261 Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body
• CPC Class Codes: A61M 2039/027 having a particular valve, seal or septum septum A61M2039/0036
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 2039/0288 protectors, caps or covers therefor
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A system for attaching an access port to bodily tissue includes an access port assembly and including an access port having a generally central axis. The access port assembly further includes an attachment mechanism structured to enable the access port to be attached, for example, to an abdominal muscle of a patient. The system includes a safety cap which lies substantially flush against the anchor base to provide no space for movement of the anchors. The safety cap prevents the anchors from deploying prematurely.

Claims

1. An access port assembly comprising:

an access port having a generally central axis and including a bottom, a sidewall, and a needle penetrable septum; and

an attachment mechanism structured to enable the access port to be attached to bodily tissue, the attachment mechanism having a plurality of rotatable anchors;

each rotatable anchor having a main body and a separately formed shaft immovably secured to the main body, the shaft defining an axis of rotation of the anchor.

2. The access port assembly of claim 1, wherein the main body is cut from a sheet of material.

3. The access port assembly of claim 1, wherein the main body has radiused edges.

4. The access port assembly of claim 1, wherein the main body is stamp cut from a sheet of material.

5. The access port assembly of claim 1, wherein the shaft has a head abutting a portion of the main body.

6. The access port assembly of claim 1, wherein the main body has an aperture, the aperture having a diameter, the shaft having a first shaft diameter and a second shaft diameter different from the first shaft diameter.

7. The access port assembly of claim 6, wherein the shaft has a third shaft diameter greater than the diameter of the aperture of the main body.

8. An access port assembly comprising:

an access port having a generally central axis and including a bottom, a sidewall, and a needle penetrable septum;

an attachment mechanism structured to enable the access port to be attached to bodily tissue, the attachment mechanism comprising a plurality of rotatable anchors;

an access port housing having an anchor base, the access port housing defining a cavity to house the access port and the attachment mechanism, the anchor base having a plurality of holes; and

a safety cap removably fixed to the anchor base, the safety cap having an outer surface and an inner surface having a plurality of columns that are used to connect to the plurality of holes of the anchor base, the inner surface being flush with the anchor base to provide no space for movement of the plurality of rotatable anchors when the safety cap is fixed to the anchor base.

9. The assess port assembly of claim 8, wherein the anchor base has a substantially flat bottom.

10. The access port assembly of claim 9, wherein the inner surface of the safety cap lies flush with the substantially flat bottom of the anchor base when the safety cap is fixed to the anchor base.

11. The access port assembly of claim 8, wherein a bottom surface of the anchor base defines a plane.

12. The access port assembly of claim 11, wherein the safety cap is structured to prevent the rotatable anchors from passing through the plane when the safety cap is fixed to the anchor base.

13. The access port assembly of claim 8, wherein the anchor base includes a plurality of apertures for the plurality of rotatable anchors to pass through.

14. The access port assembly of claim 13, wherein the safety cap is structured to prevent the rotatable anchors from passing through the plurality of apertures when the safety cap is fixed to the anchor base.

15. The access port assembly of claim 8, wherein the anchor base has an outer rim, the safety cap has an outer rim portion and a tab portion, the outer rim portion of the safety cap not extending beyond the outer rim of the anchor base.

16. The access port assembly of claim 8, wherein the plurality of columns are positioned on the inner surface of the safety cap to align the safety cap in only one position relative to the anchor base when the safety cap is fixed to the anchor base.

17. The access port assembly of claim 8, wherein the safety cap includes an outer rim portion, the plurality of columns are located substantially near the outer rim portion of the safety cap.

18. The access port assembly of claim 8, wherein the outer surface of the safety cap has a plurality of legs protruding therefrom.

19. The access port of claim 8, wherein the safety cap has an indent portion with a shape conforming to a shape of the access port bottom.

20. An access port assembly comprising:

an access port having a generally central axis and including a bottom, a sidewall, and a needle penetrable septum; and

an attachment mechanism structured to enable the access port to be attached to bodily tissue, the attachment mechanism having a plurality of rotatable anchors;

each rotatable anchor having a main body and a shaft extending from the main body and defining an axis of rotation of the anchor, the main body being formed by an initial stamp cutting step for forming a general shape of the anchor and a subsequent stamp cutting step for forming a faceted distal tip of the anchor.

21. The access port assembly of claim 20 wherein the main body of each anchor is 316 stainless steel.

22. The access port assembly of claim 20 wherein the faceted distal tip is not subjected to further sharpening or polishing procedures prior to clinical use of the port assembly.

23. The access port assembly of claim 20 wherein the main body of each anchor is 316 stainless steel and wherein the faceted distal tip is not subjected to further sharpening or polishing procedures prior to clinical use of the port assembly.