Back to results
US 2010/0076476 A1Published application
Systems and methods for cable-based tissue removal
OwnerJohn T. TO, Dan Zaretzka +3inventors
InventorsJohn T. TO, Dan Zaretzka, Hiep Nguyen, Singfatt Chin, Robert May
Life of this patent
Estimating the term…
Abstract
Systems and methods for treating disc herniation include surgical and endoscopic access and removal of disc tissue. The tissue removal devices that may be used include flexible elongate members, such as a cable, that may be inserted into a vertebral disc and rotated to pulverize the disc material and facilitate its removal.
Claims30
A system for tissue removal, comprising:
- a motor configured to rotate at a speed of at least 1000 rpm;
- a rotatable shaft assembly coupled to the motor, wherein the rotatable shaft assembly comprises a distal coupling site and a proximal coupling site comprising a proximal surface opening;
- and
- a flexible elongate member, comprising a distal section coupled to the distal coupling site of the rotatable shaft assembly and a proximal section slidably positioned in the proximal surface opening, and a middle section therebetween;
- wherein the flexible elongate member has a retracted configuration and an extended configuration wherein a perpendicular distance between the middle section of the flexible elongate member and the rotatable shaft assembly is greater in the extended configuration than in the retracted configuration.
2 more elements
Dependencies are inferred from the claim text.