Stabilized implantable vascular access port

• US 8,282,610 B1
• Filed: 03/18/2010
• Issued: 10/09/2012
• Est. Priority Date: 01/10/2006
• Status: Active Grant

• Current Assignee: Stealth Therapeutics, Inc.
• Original Assignee: Stealth Therapeutics, Inc.
• Inventors: Glenn, Bradley J.
• Primary Examiner(s): Stigell, Theodore
• Assistant Examiner(s): Stohr, Leah
• Application Number:
  US12/661,576
• Time in Patent Office: 936 Days
• Field of Search: 604104-109, 60416401-16501, 60428801-28804, 604174-178
• US Class Current: 604/288.02
• 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. 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;

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 movably coupled to said body with said wing extending laterally to stabilize the access device;

said body having an elongate form with a length greater than a width and greater than a height, said wing adapted to be positioned in a final position adjacent said body with a wing width greater than said width of said body, said wing having said height less than a height of said body before, during and after positioning of said wing adjacent to said body;

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; and

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.

2. 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;

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;

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;

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; and

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.

3. 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 movably coupled to the body with the wing extending laterally to stabilize the access device, the body having an elongate form with a length greater than a width and greater than a height, the wing adapted to be positioned in a final position adjacent the body with a width greater than the width of the body, the wing having a height less than the height of the body before, during and after positioning of the wing adjacent to the body;

expanding the wing from a first width at least as narrow as the body to the final width wider than the body;

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.

4. A method for stabilizing an implantable subcutaneous access port, the method including the steps of:

identifying 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 variable lateral dimension adjustable to be greater in lateral width than a width of the body, the wing adapted to be movably coupled to the body with the wing extending laterally to stabilize the access device, the wing exhibiting a narrow lateral form and a wide lateral form, the deformable wing adapted to transition between the narrow lateral form and the wide lateral form with the wide lateral form wider than a width of the body;

expanding the wing from a first narrow lateral form at least as narrow as the body to the final wide lateral form wider than the body;

wherein said identifying step includes the step of further identifying the at least one wing to be a deformable wing and the body to include a cavern therein having an end opening and two side openings passing into the cavern;

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; and

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