Method for manipulating catheter shaft

• US 10,507,037 B2
• Filed: 10/19/2015
• Issued: 12/17/2019
• Est. Priority Date: 10/13/2008
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Doud, Darren, Huljev, Tomislav, McNall, Ralph, Fell, Brandon, Gupta, Priyanshu, Olivera, Ryan, Pham, Thomas C.
• Primary Examiner(s): Aleman, Sarah W
• Assistant Examiner(s): Highland, Rachel S
• Application Number:
  US14/886,147
• Publication Number:
  US 20160038175A1
• Time in Patent Office: 1,520 Days
• Field of Search: 604250
• CPC Class Codes: A61B 17/320783 through side-hole, e.g. sliding or rotating cutter inside catheter
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00318 Steering mechanisms
• CPC Class Codes: A61B 2017/00331 with preformed bends
• CPC Class Codes: A61B 2017/00389 Button or wheel for performing multiple functions, e.g. rotation of shaft and end effector
• CPC Class Codes: A61B 2017/00469 for insertion of instruments, e.g. guide wire, optical fibre
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• CPC Class Codes: A61B 2017/22038 with a guide wire
• CPC Class Codes: A61B 2017/320791 with cutter extending outside the cutting window
• CPC Class Codes: A61M 2025/0161 wherein the distal tips have two or more deflection regions
• CPC Class Codes: A61M 2039/1066 having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
• CPC Class Codes: A61M 25/0014 Connecting a tube to a hub
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/0152 with pre-shaped mechanisms, e.g. pre-shaped stylets or pre-shaped outer tubes
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: A61M 5/34 Constructions for connecting the needle , e.g. to syringe nozzle or needle hub connecting catheter tubes to hubs A61M25/0014

Abstract

A catheter for performing a procedure at a treatment site in the lumen of a blood vessel. The catheter includes an elongate tubular shaft having a proximal bend, a distal bend and a hinge element. A distal portion of the shaft includes a window extending through the sidewall of the shaft between the hinge element and the distal end of the elongate tubular shaft. A working element is disposed within the lumen of the elongate tubular shaft and is configured for performing the procedure through the window at the treatment site. The bends and hinge element are configured to urge the window against a wall of the vessel at the treatment site.

Claims

1. A device for manipulating the shaft of a catheter comprising:

a body portion having a lumen sized to receive the shaft of the catheter such that the shaft of the catheter extends lengthwise through the lumen and proximal and distal end portions of the shaft protrude from opposite ends of the body portion;

a first arm connected to the body portion for rotation about a first pivot axis with respect to the body portion, the first arm comprising a first shaft engaging surface enclosed within the body portion and configured to rotate with the first arm about the first pivot axis; and

a second arm connected to the body portion for rotation about a second pivot axis with respect to the body portion, the second arm comprising a second shaft engaging surface enclosed within the body portion and configured to rotate with the second arm about the second pivot axis,

wherein the first and second arms have a locked position in which the first and second arms are oriented about the first and second pivot axes such that the first and second shaft engaging surfaces are configured to engage the shaft of the catheter to lock the body portion on the shaft, and an unlocked position in which the first and second arms are oriented such that at least one of the first and second shaft engaging surfaces is configured to be disengaged from the shaft of the catheter so that the body portion is free to rotate and axially translate over the shaft of the catheter.

2. The device of claim 1 wherein the shaft engaging surfaces are biased toward the unlocked position.

3. The device of claim 2 further comprising at least one spring biasing the shaft engaging surfaces toward the unlocked position.

4. The device of claim 1 further comprising at least one button accessible on the body portion for moving the first and second arms to the locked and unlocked positions.

5. The device of claim 4 wherein the at least one button comprises first and second buttons accessible outside the body portion, the first and second buttons being configured to be depressed relative to the body portion to rotate the respective first and second arms about the first and second pivot axes.

6. The device of claim 1 wherein the shaft engaging surfaces are biased toward the locked position.

7. The device of claim 6 further comprising at least one spring biasing the shaft engaging surfaces toward the locked position.

8. The device of claim 7 further comprising at least one button configured to move the first and second arms to the locked and unlocked positions.

9. The device of claim 1 in combination with the catheter, wherein the device is received on the shaft of the catheter.

10. The device in combination with the catheter as set forth in claim 9, wherein the catheter includes a handle coupled to the shaft of the catheter, wherein the catheter is rotatable relative to the handle.

11. The device in combination with the catheter as set forth in claim 9, wherein the catheter includes a cutter configured to remove material from a body lumen.

12. The device of claim 1, wherein the body portion has a length and the body portion is free to axially translate over the shaft of the catheter body along an axial distance that is greater than the length of the body portion.