IMPLANTABLE INJECTION PORT

• US 20110196394A1
• Filed: 02/10/2010
• Published: 08/11/2011
• Est. Priority Date: 02/10/2010
• Status: Active Grant

• Current Assignee: Apollo Endosurgery US, Inc. (Boston Scientific Corporation)
• Original Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Inventors: Trilokekar, Nikhil S., HARDERS, James A., Raven, Joseph S., Stroumpoulis, Dimitrios
• Granted Patent: US 8,882,728 B2
• Time in Patent Office: Days
• US Class Current: 606/157
• CPC Class Codes: A61F 5/003 inflatable
• CPC Class Codes: A61F 5/0043 using injection ports
• CPC Class Codes: A61F 5/0056 using injection ports
• CPC Class Codes: A61M 2039/0223 having means for anchoring the subcutaneous access site
• 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 39/04 having pierceable self-sealing members

Abstract

An implantable injection port facilitates filling and/or draining an inflatable portion of a gastric band. In an embodiment, the port comprises a movable cap that causes anchor wires to extend from anchor devices in order to implant the injection port in the tissue of a patient. In another embodiment, the port comprises a handle that rotates to implant curved anchors into the tissue of a patient. In yet another embodiment, a cap is configured to move towards a base of the port in order to cause the curved anchors to rotate into the tissue of a patient. The cap may also rotate with respect to the base in order to lock the cap and the anchors in position. Further, surfaces of the injection port may be textured to increase adhesiveness to the patient'"'"'s tissue during installation and to facilitate simpler installation.

Claims

1. An implantable injection port for use in conjunction with a gastric band and for attaching to bodily tissue, the implantable injection port comprising:

a base having a first opening;

a cap having a handle, the cap moveable between an undeployed position and a deployed position using the handle, the cap spaced apart from the base when in the deployed position; and

a first anchor configured to be positioned in the first opening of the base, the first anchor having a cavity, a hole, an inner shaft, and an anchor wire, the inner shaft coupled to the cap such that moving the cap from the undeployed position to the deployed position causes a portion of the anchor wire to move through the hole to be positioned outside the cavity and moving the cap from the deployed position to the undeployed position causes a portion of the anchor wire to move through the hole to be positioned inside the cavity.

2. The implantable injection port of claim 1 wherein the inner shaft moves within the cavity to cause the anchor wire to move through the hole.

3. The implantable injection port of claim 1 wherein the first anchor has an attachment end coupled to the cap and a free end configured in the shape of a pin.

4. The implantable injection port of claim 1 wherein the first anchor has an anchor opening for passing the anchor wire.

5. The implantable injection port of claim 1 wherein the first anchor is formed in the shape of a spiral and has a pointed end.

6. The implantable injection port of claim 1 wherein the cap has a center opening and an outer portion surrounding the center opening, the outer portion having a fitting for securing the handle adjacent to the cap.

7. The implantable injection port of claim 1 wherein the base has a center opening and an outer portion surrounding the center opening, the outer portion having a fitting for securing the handle adjacent to the cap.

8. The implantable injection port of claim 7 further comprising a septum positioned within the center opening of the base and made of a self sealing needle penetrable material.

9. The implantable injection port of claim 7 wherein the fitting forms at least one of an interference fit and a press fit with a locking rod of the handle.

10. The implantable injection port of claim 7, wherein the fitting comprises at least one of a detent, a catch and a notch.

11. The implantable injection port of claim 1 further comprising a locking rod for locking the cap in the undeployed position or the deployed position.

12. The implantable injection port of claim 11 wherein the locking rod is connected to the handle such that rotating the handle locks the locking rod and the handle.

13. The implantable injection port of claim 1 wherein the base has a second opening.

14. The implantable injection port of claim 13 further comprising a second anchor configured to be positioned in the second opening.

15. An implantable injection port for use in conjunction with a gastric band and for attaching to bodily tissue, the implantable injection port comprising:

a body having a first opening;

a handle attached to the body, the handle moveable between a detached position and an attached position; and

a first anchor device configured to be positioned in the first opening of the body, the first anchor device attached to the handle such that moving the handle from the detached position to the attached position causes a portion of the first anchor device to move through the first opening to be positioned outside the body and moving the handle from the attached position to the detached position causes a portion of the first anchor device to move through the first opening to be positioned inside the body.

16. The implantable injection port of claim 15 wherein the first anchor device is formed in the shape of a spiral and has a pointed end.

17. The implantable injection port of claim 15 wherein the body has a center opening and an outer portion surrounding the center opening, the outer portion having a fitting for securing the handle adjacent to the body.

18. The implantable injection port of claim 15 wherein the body has a second opening.

19. The implantable injection port of claim 18 further comprising a second anchor device configured to be positioned in the second opening.

20. An implantable injection port, comprising:

a base;

a curved anchor attached to a handle rotatably attached to the base, and when the handle is rotated, the curved anchor moves to an implanted position; and

a quick-connect and strain relief fitting coupled to a reservoir disposed in the base.

21. The implantable injection port of claim 20 further comprising a nib in the base to lock the handle in the implanted position.

22. The implantable injection port of claim 20 further comprising a suture tab on the base.

23. The implantable injection port of claim 20 further comprising a textured surface on the base to prevent slipping during implantation of the implantable injection port.

24. The implantable injection port of claim 20 wherein the quick-connect and strain relief fitting interfaces with gastric band tubing that connects a gastric band to the reservoir.

25. The implantable injection port of claim 20 further comprising port tubing that connects the reservoir to the quick-connect and strain relief fitting.

26. The implantable injection port of claim 20 wherein a press-fit slot on the handle receives a press-fit hub on the base when the anchor is in an undeployed position.

27. An implantable injection port for use in conjunction with a gastric band and for attaching to bodily tissue, the implantable injection port comprising:

a cap;

a base coupled to the cap, the base having a first textured surface providing adhesiveness between the base and a contact surface; and

a hook rotatably disposed within the base, and when the cap moves towards the base, the hook moves to an implanted position.

28. The implantable injection port of claim 27 wherein the first textured surface comprises parallel wavy lines.

29. The implantable injection port of claim 27 wherein the first textured surface comprises a papillae projection.

30. The implantable injection port of claim 27 further comprising a second textured surface.

31. The implantable injection port of claim 27 further comprising a septum positioned within a center opening of the cap and made of a self sealing, needle penetrable material.

32. An implantable injection port comprising:

a cap having an engagement surface;

a base that nests within the cap and comprises a slot;

an internal ring attached to the base;

a curved anchor rotatably connected to the internal ring, wherein the curved anchor moves through the slot from an undeployed position to a deployed position when the cap moves toward the base to facilitate implanting the injection port in tissue; and

a locking mechanism in the cap, wherein rotating the cap with respect to the base causes the locking mechanism to engage the curved anchor to lock the curved anchor in place and to prevent the cap from moving with respect to the base.

33. The implantable injection port of claim 32 wherein the base comprises a hollow cylinder that receives a foot of the internal ring.