Tubing assembly and signal generator placement control device and method for use with catheter guidance systems

• US 9,579,488 B2
• Filed: 09/14/2015
• Issued: 02/28/2017
• Est. Priority Date: 01/13/2005
• Status: Active Grant

• Current Assignee: Avent Incorporated (Avanos Medical, Inc.)
• Original Assignee: CORPAK MedSystems, Inc. (Avanos Medical, Inc.)
• Inventors: Shaughnessy, Michael C., Platt, David K., Purnell, Shawn G., Nassif, George A., Smith, Andrew M. L.
• Primary Examiner(s): GRAY, PHILLIP A
• Application Number:
  US14/852,775
• Publication Number:
  US 20160001043A1
• Time in Patent Office: 533 Days
• Field of Search: 604533-284, 604174-180, 600/424, 600/426, 600/427, 600/429
• US Class Current: 1/1
• CPC Class Codes: A61B 1/00158 using magnetic field
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/3975 active
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/064 using markers A61B5/062 takes precedence
• CPC Class Codes: A61J 15/0003 Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth
• CPC Class Codes: A61M 2025/0008 having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/0105 Steering means as part of the catheter or advancing means; Markers for positioning systems for detection of markers A61B
• CPC Class Codes: A61M 25/0127 Magnetic means; Magnetic markers
• CPC Class Codes: A61M 25/0662 Guide tubes

Abstract

A tubing assembly having a signal generator placement control device for use in conjunction with electronic catheter guidance systems. The control device facilitates control of the position the guidance systems'"'"' signal generator relative to the end of the tubing assembly. The tubing assembly includes a tubular insulator coupled to one end of the control device, and the tubing assembly includes a tubular connector attached to the other end of control device. Also, the tubing assembly includes a catheter attached to the tubular connector and an end member attached to the catheter.

Claims

1. A tubing assembly, comprising:

a magnetic field generator;

a union device with an elongated portion defining a passage of a first length;

a tubular insulator including a portion configured to be coaxially moved along the passage of the union device and coupled to the union device;

a tubular connector configured to be removably coupled to the union device;

a flexible catheter coupled to the tubular connector, the flexible catheter being configured to receive the magnetic field generator, and the flexible catheter having a length of variation from a tip of the flexible catheter to the tubular connector, the length of variation based on at least one of a manufacturing process and a material of the flexible catheter; and

at least one wire coupled to the magnetic field generator, the at least one wire extending through the tubular insulator, the union device, the tubular connector, and the flexible catheter, wherein the tubular insulator, the at least one wire, and the magnetic field generator are moveably configured to adjust the at least one wire and the magnetic field generator to a position within the flexible catheter, by moving the portion of the tubular insulator coaxially along the passage of the union device and the at least one wire through the passage of the union device, to fix the magnetic field generator at the position within the flexible catheter, wherein the first length of the passage is greater than the length of variation of the flexible catheter such that the elongated portion is configured for controlling placement of the magnetic field generator at the position.

2. The tubing assembly of claim 1, wherein the elongated portion is an elongated neck.

3. The tubing assembly of claim 1, wherein the union device includes a gripping member.

4. The tubing assembly of claim 1, wherein the union device includes a position controller.

5. The tubing assembly of claim 1, wherein the union device includes a stop.

6. The tubing assembly of claim 1, wherein the tubular connector has a medicine branch, a feeding branch, a connection branch and a plurality of moveable arms.

7. The tubing assembly of claim 1, wherein the flexible catheter includes an external surface having a plurality of designated unit markings uniformly spaced along the flexible catheter.

8. The tubing assembly of claim 1, further including an end member attached to the flexible catheter, the end member including a first portion having a collar and a second portion having a rounded shape, the first portion defining a passage and an opening.

9. The tubing assembly of claim 1, wherein the position is fixed when the magnetic field generator is positioned in a tip of the flexible catheter.

10. The tubing assembly of claim 9, wherein the at least one wire and the magnetic field generator are removed from the flexible catheter after placement of the flexible catheter at a desired location within a body.

11. The tubing assembly of claim 1, wherein the position of the magnetic field generator is fixed using a fastener within the union device.

12. The tubing assembly of claim 11, wherein the fastener is an adhesive.

13. The tubing assembly of claim 11, wherein the fastener includes a mechanical fastener.

14. The tubing assembly of claim 11, wherein the fastener includes a chemical fastener.

15. The tubing assembly of claim 1, wherein the position of the magnetic field generator is fixed using an adhesive.

16. The tubing assembly of claim 1, wherein the position of the magnetic field generator is fixed using a clip.

17. The tubing assembly of claim 1, wherein the position of the magnetic field generator is fixed using a clasp.

18. The tubing assembly of claim 1, wherein the position of the magnetic field generator is fixed using tape.

19. The tubing assembly of claim 1, wherein the tubular connector is coupled to the union device at a first time, and at a second time after the first time, the union device is removed from the tubular connector and the at least one wire and the magnetic field generator are removed from the catheter.

20. The tubing assembly of claim 1, wherein the catheter comprises polyurethane.

21. The tubing assembly of claim 1, wherein the catheter comprises silicone.

22. The tubing assembly of claim 1, wherein the tubular insulator comprises at least one of polyurethane, silicone, and polyacrylonitrile.

23. The tubing assembly of claim 1, wherein the tubular connector comprises at least one of polyamide, polyethylene, polypropylene, polyacrylonitrile, polyurethane, and silicone.

24. The tubing assembly of claim 1, wherein the union device comprises at least one of polyamide, polyethylene, polypropylene, and polyacrylonitrile.