Percutaneous methods for injecting a curable biomaterial into an intervertebral space
US7837733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2005 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4663
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for treating a spinal disc comprises the steps of: determining the integrity of the annulus by subjecting the annulus to a first pressure applied internally of the annulus; providing access to the nucleus pulposus through the annulus without removing any tissue from the annulus or from the nucleus pulposus; and sealably injecting curable biomaterial through the annulus access directly into the nucleus pulposus at a second pressure correlated with the first pressure. The integrity of the annulus may be determined by a pre-operative discogram using a contrast medium that has a viscosity substantially similar to the viscosity of the biomaterial to be injected. The curable biomaterial may be injected under a pressure sufficient to distract opposing vertebral bodies communicating with the disc space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.