Tissue removal devices and methods
AssigneeDePuy Synthes Products, Inc.
InventorsMichael O'Neil, Zoher Bootwala, J. Riley Hawkins
Life of this patent
Estimating the term…
Abstract
Devices and methods for tissue removal are disclosed herein, including those in which a powered rotary tool actuates a cutting blade to sever tissue and drives an auger to transport the severed tissue proximally through the device. The severed tissue can be collected in an on-board collection chamber for subsequent use as graft material or otherwise (e.g., assay, analysis, post-processing, etc.). Devices of the type disclosed herein can reduce or eliminate the need to move the device in and out of the surgical site, reduce user input force, and provide improved ergonomics and increased user focus.
Claims15
A tissue cutting device, comprising:
- a footplate;
- a blade having a cutting surface, wherein the blade is movable relative to the footplate between an open position in which a tissue opening is formed between the cutting surface and the footplate and a closed position in which the cutting surface contacts or approaches the footplate to cut tissue disposed therebetween;
- an auger disposed in a lumen of the device and configured to transport tissue cut by the blade proximally through the lumen;
- and
- an input shaft, wherein the input shaft is coupled to a blade drive assembly that converts rotational movement of the input shaft into reciprocating movement of the blade between the open and closed positions and wherein the input shaft is coupled to an auger drive assembly that converts the rotational movement of the input shaft into rotating movement of the auger.
Dependencies are inferred from the claim text.