Stabilized implantable vascular access port

• US 20070161958A1
• Filed: 01/09/2007
• Published: 07/12/2007
• Est. Priority Date: 01/10/2006
• Status: Active Grant

• Current Assignee: Stealth Therapeutics, Inc.
• Original Assignee: Stealth Therapeutics, Inc.
• Inventors: Glenn, Bradley
• Granted Patent: US 7,708,722 B2
• Time in Patent Office: Days
• US Class Current: 604/175
• CPC Class Codes: A61M 2039/0223 having means for anchoring the subcutaneous access site
• CPC Class Codes: A61M 2039/0232 having means for facilitating the insertion into the body
• 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 subcutaneously implantable vascular access port has two parts including a body and a wing. The body supports a chamber covered by a septum, with a septum held in place over the chamber by a collar. The chamber is coupleable to a vascular structure, such as through tubing extending from the body, for delivery of medical preparations. The body is preferably elongate in form. The wing is configured to be adjustable in width. In one embodiment the wing rotates relative to the body and has an elongate form similar to that of the body. When the wing is rotated it extends laterally from the body and enhances a stability of the body. In another embodiment, the wing is provided as a deformable wing which can expand laterally out of side openings of a cavern in the body into which the deformable wing is inserted.

Claims

1. :

A stabilized implantable access port, comprising in combination;

a body having a recess therein;

said recess adapted to be brought into fluid communication with a vascular structure;

a septum covering an upper portion of said recess;

said septum adapted to allow a needle to penetrate said septum and to reseal after needle removal; and

at least one elongate wing pivotably attached to said body.

2. :

The port of claim 1 wherein said body is elongate in form having a length greater than a width.

3. :

The port of claim 2 wherein said elongate wing has at least two separate positions relative to said body including a first position more aligned with said body than a second position, said second position having ends of said wing extending laterally beyond lateral sides of said body.

4. :

The port of claim 3 wherein both said wing and said body include holes therein through which a flexible line can pass.

5. :

The port of claim 3 wherein said wing is oriented below said body with said wing defining a lowermost portion of said port.

6. :

The port of claim 5 wherein a stop post extends down from an undersurface of said body, said undersurface of said body adjacent said wing, said post adapted to prevent wing rotation past said post.

7. :

The port of claim 1 wherein said port includes at least two elongate wings, each of said at least two elongate wings pivotably attached to said body.

8. :

The port of claim 7 wherein each of said at least two elongate wings is adapted to rotate in a different direction relative to said body.

9. :

The port of claim 8 wherein said at least two elongate wings are shaped to exhibit a complemental form sharing a common plane below said undersurface of said body, such that a lowermost surface of said port is defined by a portion of each of said at least elongate wings.

10. :

An implantable subcutaneous vascular access device, featuring a modifiable plan form, the access device comprising in combination;

a body having a recess therein;

said recess adapted to be brought into fluid communication with a vascular structure;

a septum covering an upper portion of said recess;

said septum adapted to allow a needle to penetrate said septum and to reseal after needle removal; and

at least one wing adapted to have a variable lateral dimension that can be adjusted in lateral width to be greater than a width of said body, said wing adapted to be attached to said body with said wing extending laterally to stabilize the access device.

11. :

The access device of claim 10 wherein said at least one wing includes at least one rigid elongate wing pivotably coupled to said body, said rigid elongate wing adapted to be aligned with a direction of implantation during implantation of said access device and adapted to extend non-parallel with a direction of implantation after rotation of said at least one rigid elongate wing.

12. :

The access device of claim 11 wherein said at least one rigid elongate wing is coupled to a center point of said body.

13. :

The access device of claim 12 wherein said at least one rigid elongate wing is coupled to said body on a side of said body opposite said recess and said septum.

14. :

The access device of claim 12 wherein said wing includes at least two rigid elongate wings, each of said at least two wings pivotably coupled to said body such that each of said at least two wings can pivot relative to said body and relative to each other.

15. :

The access device of claim 10 wherein said wing includes at least one deformable wing exhibiting a narrow lateral form and a wide lateral form, said deformable wing adapted to transition between said narrow lateral form and said wide lateral form, said wide lateral form wider than a width of said body.

16. :

The access device of claim 15 wherein said body includes a cavern within an interior thereof, said cavern open to an exterior of said body through at least one end opening and two side openings generally opposite each other, said cavern having a height at least as great as a height of said at least one deformable wing, said cavern adapted to receive said deformable wing therein with portions of said deformable wing extending out of said side openings of said cavern.

17. :

The access device of claim 16 wherein said deformable wing is formed as a loop with four separate sides joined together at corners, opposite corners of said loop being further from each other than a width of said body when said deformable wing is in said wide lateral form, said opposite corners of said loop located closer to each other than a width of said end opening when said deformable wing is in said narrow form, with said deformable wing resiliently transitioning from said narrow form to said lateral form.

18. :

A method for stabilizing an implantable subcutaneous access port, the method including the steps of;

providing an access port having a body with a recess therein, the recess adapted to be brought into fluid communication with a vascular structure, a septum covering an upper portion of the recess, the septum adapted to allow a needle to penetrate the septum and to reseal after needle removal, and at least one wing having a lateral dimension greater than a width of the body, the wing adapted to be attached to the body with the wing extending laterally to stabilize the access device; and

expanding the wing from a first width at least as narrow as the body to a second width wider than the body.

19. :

The method of claim 18 wherein said providing step includes the step of configuring the at least one wing to be a rigid elongate wing; and

wherein said expanding step includes the step of rotating the rigid elongate wing.

20. :

The method of claim 18 wherein said providing step includes the step of configuring the at least one wing to be a deformable wing and configuring the body to include a cavern therein having an end opening and two side openings passing into the cavern; and

wherein said expanding step includes the step of contracting a width of the deformable wing, inserting the deformable wing into the cavern through the end opening and expanding the deformable wing at least partially out of side openings of the cavern in the body.