US 8,257,356 B2Granted

Guidewire exchange systems to treat spinal stenosis

AssigneeBaxano, Inc.

InventorsJeffrey L. Bleich, Gregory P. Schmitz, Roy Leguidleguid, Jefferey Bleam

Life of this patent

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Abstract

Guidewire exchange systems, devices and methods, for positioning and actuating surgical devices in a desired position between two tissues in a patient's body are described. A guidewire may be coupled to a surgical device for positioning and actuating (e.g., urging against a target tissue). The guidewire may be exchanged between different surgical devices during the same procedure, and the guidewire and surgical devices may be releaseably or permanently coupled. The surgical device generally includes one or more guidewire coupling members. A system may include a guidewire and a surgical device having a guidewire coupling member. Methods, devices and systems may be used in open, less-invasive or percutaneous surgical procedures.

Claims12

Dependent claims

A method of treating a patient, the method comprising:

advancing a distal end of a guidewire into the patient's body from a first site, advancing adjacent to a target tissue, and out of the body from a second site, while maintaining a proximal end of the guidewire outside the body at the first site;
coupling an end of the guidewire on or near a distal end of a surgical device outside of the body by inserting the end of the guidewire at an angle relative to the distal end of the surgical device into a channel at or near the distal end of the surgical device and rotating one or both of the end of the guidewire and the distal end of the surgical device to lock the guidewire and the surgical device together;
pulling the guidewire to guide the surgical device adjacent to the target tissue;
and
withdrawing the surgical device and end of the guidewire from the patient while maintaining the guidewire within the body and de-coupling the end of the guidewire from the surgical device and coupling the end of the guidewire on or near a distal end of a second surgical device outside of the body by inserting the end of the guidewire at an angle relative to the distal end of the second surgical device into a channel at or near the distal end of the second surgical device and rotating one or both of the end of the guidewire and the distal end of the second surgical device to lock the guidewire and the second surgical device together,
wherein at least one of the surgical device and the second surgical device comprises an abrasive surface.

3 more elements

A method for guiding at least a portion of a surgical device to a desired position between two tissues in a patient's body, the method comprising:

advancing a distal end of a guidewire into the patient's body, between two tissues, and out of the body, while maintaining a proximal end of the guidewire outside the body;
coupling the proximal end of the guidewire with at least one coupling member on or near a distal end of a surgical device outside of the body by inserting the proximal end of the guidewire at an angle relative to the distal end of the surgical device into a channel at or near the distal end of the surgical device and rotating one or both the proximal end of the guidewire and the distal end of the surgical device to lock the guidewire and the surgical device together;
pulling the distal end of the guidewire to guide at least a portion of the surgical device to a desired position adjacent to the target tissue;
withdrawing the surgical device and distal end of the guidewire proximally from the patient while maintaining the guidewire within the body and de-coupling the proximal end of the guidewire from the surgical device and coupling the proximal end of the guidewire with at least one coupling member on or near a distal end of a second surgical device outside of the body by inserting the proximal end of the guidewire at an angle relative to the distal end of the second surgical device into a channel of the coupling member and rotating one or both the proximal end of the guidewire and the distal end of the second surgical device to lock the guidewire and the second surgical device together;
pulling the distal end of the guidewire to guide at least a portion of an abrasive surface of the second surgical device to a desired position adjacent to the target tissue.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/127,535Filed 27 May 2008 · continuation in part
Priority: 15 Oct 2004
Published: US 2008/0086114 A16 Nov 2008
Granted: 4 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification35 codes

A61B 17/320758
Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions: with a rotating cutting…
A61B 17/1671
For particular parts of the body: for the spine
A61B 17/29
Surgical forceps: forceps for use in minimally invasive surgery
A61B 17/320016
Surgical cutting instruments: endoscopic cutting instruments, e.g. arthroscopes, resectoscopes

Family

Application60/619,306Us provisional application · filed 15 Oct 2004
Application60/622,865Us provisional application · filed 28 Oct 2004
Application60/681,719Us provisional application · filed 16 May 2005
Application60/681,864Us provisional application · filed 16 May 2005
Application60/685,190Us provisional application · filed 27 May 2005
Application11/251,199Parent of this continuation-in-part · filed 15 Oct 2005
Application11/468,247Parent of this continuation-in-part · filed 29 Aug 2006
US 2008/0275458 A1Pre-grant publication · published 6 Nov 2008
US 7,857,813 B2Parent of this continuation-in-part
US 2006/0095059 A1Published application
US 2008/0086114 A1Published application
US 8,192,435 B2Related patent
US 8,257,356 B2This patent

From the US filing history. Foreign family members aren’t listed.