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Clemow
Alasair J.t. Clemow, Princeton, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20100016907 | REPLACEMENT OR SUPPLEMENTATION OF A NUCLEUS PULPOSUS USING A HYDROGEL - A nucleus pulposus of an intervertebral disc is supplemented or replaced by an elongated, physiologically fully hydrated hydrogel prosthesis inserted into the central region of an intervertebral disc, where it can fold upon itself to form a prosthesis body within the central region of the annulus fibrosus. The hydrogel prosthesis may have expanded portions that assist in preventing expulsion of the prosthesis through the insertion aperture. An instrument for inserting the prosthesis has a cutter for severing the elongated prosthesis within the central region of the intervertebral disc after a sufficient amount has been implanted. | 01-21-2010 |
Alastair J.t. Clemow, Princeton, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20080306609 | Fixation of Elastomer to Rigid Structures - A surgical implant, especially an artificial intervertebral disc, includes a rigid substrate ( | 12-11-2008 |
| 20090030521 | ELASTOMERIC INTERVERTEBRAL DISC PROSTHESIS - An intervertebral disc prosthesis includes upper and lower rigid endplates and an elastomeric core structure located between the endplates and attached thereto, wherein the elastomeric core structure has a centroid positioned posterior to a centroid of at least one of the endplates. | 01-29-2009 |
| 20090216329 | INTERVERTEBRAL DISC REPLACEMENT AND ASSOCIATED INSTRUMENTATION - An endplate for an intervertebral prosthesis includes an inner domed region ( | 08-27-2009 |
Alastair J. T. Clemow, Princeton, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20100047437 | HYDROGEL BALLOON PROSTHESIS FOR NUCLEUS PULPOSUS - A prosthesis for replacing or supplementing a nucleus pulposus of an intervertebral disk is an expandable container having flexible walls, the container being adapted to be inserted into a central cavity of an intervertebral disk through a narrow cannula, and the flexible walls are made from a biocompatible hydrogel. A preferred hydrogel is a cryogel formed from an aqueous solution of poly(vinyl alcohol) and poly(vinyl pyrrolidone). The prosthesis may be prepared by dip-coating a mandrel with an aqueous solution of a hydrogel-forming polymer or mixture of such polymers, gelling the coated solution by chilling, and subjecting the gelled coating to a series of repeated freeze-thaw treatments. In use, the prosthesis is inserted into a central cavity of an intervertebral disk and filled with biocompatible material, e.g., a biocompatible liquid, a biocompatible polymer, and a biocompatible hydrogel, particularly a thermogelling hydrogel. | 02-25-2010 |