Devices, systems, and methods for locating magnetic injection fill ports

• US 8,171,938 B2
• Filed: 11/20/2008
• Issued: 05/08/2012
• Est. Priority Date: 11/27/2007
• Status: Active Grant

• Current Assignee: Bradley P. Bengtson
• Original Assignee: Bradley P. Bengtson
• Inventors: Bengtson, Bradley P
• Primary Examiner(s): Lacyk, John
• Application Number:
  US12/313,446
• Publication Number:
  US 20090137899A1
• Time in Patent Office: 1,265 Days
• Field of Search: 128897-899, 600/424, 607/154, 623/66.1, 604/175, 604/116, 604/117, 60428801-28804
• US Class Current: 128/899
• CPC Class Codes: A61M 2039/0238 having means for locating the implanted device to insure proper injection, e.g. radio-emitter, protuberances, radio-opaque markers
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• 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 5/427 Locating point where body is to be pierced, e.g. vein location means using ultrasonic waves, injection site templates

Abstract

Devices, systems, and methods provide accurate and consistent identification of the center of a magnetic infusion port.

Claims

1. A system for locating an implanted infusion port comprising:

an infusion port, the infusion port having a magnetic portion, the magnetic portion having a first surface having a first magnetic polarity and a second surface having a second magnetic polarity;

a port finder, the port finder having a first surface and a second opposite facing surface, the first surface having a first magnetic polarity and the second surface having a second opposite magnetic polarity, the port finder having a center hole extending through the port finder from the first surface to the second surface; and

a sleeve having an interior cavity sized and configured to receive the port finder.

2. The system of claim 1 wherein the sleeve has an opening adjacent the interior cavity, the opening being sized and configured to receive the port finder.

3. The system of claim 1 wherein the sleeve has a sticky back side.

4. The system of claim 3 wherein the back side has a cover that may be peeled back to expose the sticky material.

5. The system of claim 1 wherein a surface of the sleeve includes an anesthetic.

6. The system of claim 1 further comprising a flexible member coupled to the port finder.

7. The system of claim 6 wherein the flexible member is a string.

8. The system of claim 1 wherein said port finder center hole is sized and configured to allow passage of a needle therethrough.

9. The system of claim 1 wherein said port finder center hole is sized and configured to allow passage of a marking apparatus therethrough.

10. A method comprising:

providing a magnetic infusion port;

providing a magnetic port finder, the magnetic port finder comprising a center aperture extending between a first port finder surface and a second, oppositely disposed port finder surface;

providing a sleeve;

inserting the magnetic port finder into the sleeve;

implanting the magnetic infusion port; and

using the magnetic port finder to locate the magnetic infusion port.

12. The method of claim 10 further comprising marking the location of the magnetic infusion port on the needle through the center aperture of the magnetic port finder.

13. The method of claim 12 further comprising

removing the magnetic port finder;

and

inserting a needle into the magnetic infusion port at the marked spot.

14. The method of claim 10 further comprising providing an adhesive substance on at least one surface of the sleeve.

15. The method of claim 14 further comprising inserting a needle through the center aperture of the magnetic port finder into the magnetic infusion port.

16. The method of claim 15 further comprising

removing the needle from the magnetic infusion port;

and

removing the magnet from the sleeve, the sleeve remaining to serve as a bandage.

17. The method of claim 14 further comprising

removing the magnet from the sleeve;

and

inserting a needle through the sleeve into the magnetic infusion port.

18. The method of claim 17 further comprising

removing the needle from the magnetic infusion port;

and

allowing the sleeve to remain to serve as a bandage.

19. The method of claim 10 further comprising placing an anesthetic on at least one surface of the sleeve.

11. The method of 10 further comprising inserting a needle through the center aperture of the magnetic port finder into the magnetic infusion port.

20. A system for locating an implanted infusion port comprising:

an infusion port, the infusion port having a magnetic portion, the magnetic portion having a first surface having a first magnetic polarity and a second surface having a second magnetic polarity; and

a port finder, the port finder having a first pole having a first magnetic polarity and a second pole having a second opposite magnetic polarity, the port finder having a center hole extending through the port finder from the first pole to the second pole; and

a sleeve having an interior cavity sized and configured to receive the port finder.

21. The system of claim 20 wherein the port finder has a generally spherical configuration.