Deflection Control Catheters, Support Catheters and Methods of Use

• US 20140228808A1
• Filed: 04/17/2014
• Published: 08/14/2014
• Est. Priority Date: 01/26/2006
• Status: Active Grant

• Current Assignee: Teleflex Life Sciences LLC (Teleflex Incorporated)
• Original Assignee: Otira Medical
• Inventors: Webster, Mark W.I., Galdonik, Jason
• Granted Patent: US 10,173,029 B2
• Time in Patent Office: Days
• US Class Current: 604/510
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61M 2025/0183 Rapid exchange or monorail catheters
• CPC Class Codes: A61M 25/0023 by the form of the lumen, e.g. cross-section, variable diameter
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

A deflection and support catheter provided for improved manipulation of elongated medical devices used during percutaneous procedures in difficult to reach situations. In particular, the deflection and support catheters can facilitate placement of guidewires, guide catheters, and intervention devices such as angioplasty balloons and stent delivery devices.

Claims

1. A method for the delivery of an elongated treatment device into a vessel within a vascular network, the method comprising:

loading a rapid exchange segment of a delivery tool onto the elongated treatment device; and

using the delivery tool to provide support for the placement of the elongated treatment device into the vessel,

wherein the rapid exchange segment comprises a slit that provides for the loading of the rapid exchange segment.

2. The method of claim 1, wherein the elongated treatment device comprises a balloon or a stent delivery structure.

3. The method of claim 1, wherein the loading the rapid exchange segment of the delivery tool onto the elongated treatment device further comprises urging the elongated treatment device into a lumen of a tubular element of the rapid exchange segment through the slit, wherein the slit is defined along an entire length of the tubular element.

4. The method of claim 1, wherein the using the delivery tool to provide support for the placement of the elongated treatment device further comprises urging the delivery tool and the elongated treatment device distally through a guide catheter by urging a proximal segment coupled to the rapid exchange segment distally.

5. The method of claim 1, wherein the using the delivery tool to provide support for the placement of the elongated treatment device further comprises urging the delivery tool and the elongated treatment device distally through a guide catheter such that the delivery tool extends from a distal end of the guide catheter into the vessel.

6. The method of claim 5, wherein the using the delivery tool to provide support for the placement of the elongated treatment device further comprises advancing the elongated treatment device distally to a treatment site in the vessel.

7. A method for delivering an elongated treatment device into a vessel within a vascular network, the method comprising:

advancing an elongated treatment device within the vessel over a guidewire through a standard guide catheter such that a distal end of the elongated treatment device is positioned proximal to a treatment site in the vessel;

positioning a delivery tool onto the elongated treatment device, the delivery tool comprising;

(a) a rapid exchange segment comprising a tubular element defining a lumen, the tubular element comprising a slit structure defined along an entire length of the tubular element; and

(b) a proximal segment coupled to a proximal portion of the rapid exchange segment,

wherein the positioning the delivery tool onto the elongated treatment device further comprises urging the elongated treatment device into the lumen of the tubular element through the slit structure;

advancing the delivery tool distally through the standard guide catheter such that the tubular element extends from the standard guide catheter into the vessel;

advancing the elongated treatment device distally to the treatment site; and

withdrawing the delivery tool.

8. The method of claim 7, further comprising removing the tubular element from the elongated treatment device via the slit structure after withdrawing the delivery tool.

9. The method of claim 7, wherein the withdrawing the delivery tool occurs while the elongated treatment device remains positioned at the treatment site.

10. The method of claim 7, wherein the advancing the delivery tool further comprises urging a proximal portion of the proximal segment distally.

11. The method of claim 7, wherein the elongated treatment device comprises a balloon or a stent delivery structure.

12. A method for delivering an elongated treatment device into a vessel within a vascular network, the method comprising:

positioning an elongated treatment device into a guide catheter positioned in the vessel such that a proximal portion of the elongated treatment device extends proximally from a proximal end of the guide catheter;

positioning a delivery tool comprising a tubular element onto the elongated treatment device by urging the proximal portion of the elongated treatment device into a lumen defined in the tubular element through a slit structure defined along an entire length of the tubular element; and

advancing the delivery tool and the elongated treatment device distally through the guide catheter.

13. The method of claim 12, wherein the advancing the delivery tool and the elongated treatment device further comprises urging a proximal segment coupled to a proximal portion of the tubular element distally.

14. The method of claim 12, wherein the elongated treatment device comprises a treatment catheter.

15. The method of claim 12, wherein the elongated treatment device comprises a balloon or a stent delivery structure.

16. The method of claim 12, wherein the advancing the delivery tool and the elongated treatment device further comprises advancing the delivery tool such that a distal portion of the delivery tool extends from a distal end of the guide catheter into the vessel.

17. The method of claim 16, further comprising advancing the elongated treatment device distally to a treatment site in the vessel.

18. The method of claim 12, wherein the slit structure has a spiral configuration.

19. The method of claim 12, further comprising positioning an overtube over the tubular element after positioning the delivery tool onto the elongated treatment device.

20. The method of claim 12, wherein the slit structure comprises overlapping lips or edges that meet.