| Anova Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20110264224 | METHODS AND APPARATUS FOR TREATING DISC HERNIATION AND PREVENTING THE EXTRUSION OF INTERBODY BONE GRAFT - Methods and apparatus for treating disc herniation provide a conformable device which assumes a first shape associated with insertion and a second shape or expanded shape to occlude the defect which typically follows partial discectomy. The device may take different forms according to the invention, including patches size to cover the defect or plugs adapted to fill the defect. In a preferred embodiment, however, the device is a gel or other liquid or semi-liquid which solidifies to occlude the defect from within the body of the disc itself. In another preferred embodiment, a mesh screen is collapsed into an elongated form for the purposes of insertion, thereby minimizing the size of the requisite incision while avoiding delicate surrounding nerves. Such a configuration also permits the use of instrumentation to install the device, including, for example, a hollow tube or sheath adapted to hold the collapsed screen, and a push rod to expel the collapsed device out of the sheath for use in occluding the disc defect. A device according to the invention may further include one or more anchors to assist in permanently affixing the device with respect to the defect. | 10-27-2011 |
| 20100016889 | METHODS AND APPARATUS FOR ANULUS REPAIR - Apparatus and methods facilitates reconstruction of the anulus fibrosus (AF) and/or the nucleus pulposus (NP) to prevent recurrent herniation following microlumbar discectomy. The invention may also be used in the treatment of herniated discs, anular tears of the disc, or disc degeneration, while enabling surgeons to preserve the contained nucleus pulposus. A spinal repair system according to the invention comprises flexible longitudinal fixation components adapted for placement through portions of the AF with intact fibers, a porous mesh reinforcement component adapted for placement over a region of the AF with damaged fibers, and an anti-adhesion component for placement over flexible longitudinal fixation components and the porous mesh component. Preferred embodiments of the invention include an intra-aperture component dimensioned for positioning within a defect in the AF, with one or more components being used to maintain the intra-aperture component in position. One or more lengthwise passageways through the intra-aperture component, one or more lengthwise grooves on the outer surface of the intra-aperture component, or a combination thereof, intentionally facilitate the escape of nucleus pulposus tissue through or around the intra-aperture component in response to pressure applied by the upper and lower vertebral bodies. | 01-21-2010 |
