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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Higham; Paul A.
Address:
Ringwood, NJ
No. of patents:
13
Patents:












Patent Number Title Of Patent Date Issued
6280475 Hydrogel intervertebral disc nucleus implantation method August 28, 2001
An article for use in the preparation of a hydrogel prosthetic nucleus, for an intervertebral disc, having equilibrium water contents (EWCs) of from about 30 to about 90% and compressive strengths of at least 4 meganewtons per square meter (MNm.sup.-2), at their EWCs, when subjected to t
5976186 Hydrogel intervertebral disc nucleus November 2, 1999
An article for use in the preparation of a hydrogel prosthetic nucleus, for an intervertebral disc, having equilibrium water contents (EWCs) of from about 30 to about 90% and compressive strengths of at least 4 meganewtons per square meter (MNm.sup.-2), at their EWCs, when subjected to t
5800559 Coated femoral stem prosthesis September 1, 1998
A femoral hip component for use in hip arthroplasty has a stem portion for contact with bone cement. The stem portion is formed from a biocompatible material having a surface finish of less than about four microinches. This surface is coated with a uniform layer of material selected from
5593452 Coated femoral stem prosthesis January 14, 1997
A femoral hip component for use in hip arthroplasty has a stem portion for contact with bone cement. The stem portion is formed from a biocompatible material having a surface finish of less than about four microinches. This surface is coated with a uniform layer of material selected from
5266326 In situ modification of alginate November 30, 1993
A method of modifying salts of alginic acid in situ for prevention and treatment of various intra-articular and extra-articular (spine) complications modifies the alginate in situ to an insoluble gel. This in situ modification provides a final product which can be compressed within t
5263985 Bone growth stimulator November 23, 1993
An implantable material for promoting bone growth has a microporous structure exhibiting an average pore size of at least 30 .ANG.. The porous biomaterial is capable of retaining macromolecules having a molecular weight of at least 15,000 and up to 500,000.
5258420 Bone cement for sustained release of substances November 2, 1993
A bone cement is disclosed wherein the liquid component contains a therapeutic or diagnostic substance in combination with an emulsifying agent for said substance.
5192326 Hydrogel bead intervertebral disc nucleus March 9, 1993
A prosthetic nucleus for implantation in the disc space after removal of a damaged or degenerated nucleus is formed from a multiplicity of hydrogel beads having a water content of at least 30%. The beads are covered by a semi-permeable membrane. The membrane has porosity less than the si
5106614 Bone cement for sustained release of substances April 21, 1992
A bone cement is disclosed wherein the liquid component contains a therapeutic or diagnostic substance in combination with an emulsifying agent for said substance.
5093319 Use of derivatives of chitin soluble in aqueous solutions for preventing adhesions March 3, 1992
A method for preventing adhesion between vital tissues includes the step of placing between the tissues a material made up of biodegradable derivatives of chitin which are soluble in aqueous solutions containing dilute acids such as acetic acid. This material has the advantage of req
5047055 Hydrogel intervertebral disc nucleus September 10, 1991
A prosthetic nucleus for a vertebral disc is made of a hydrogel material. The hydrogel prosthetic nucleus has a shape generally conforming to the natural nucleus pulposus. The hydrogel has a water content of at least 30% and has a compressive strength of 4MNm.sup.-2 or greater. When the
4994277 Use of xanthan gum for preventing adhesions February 19, 1991
A method for preventing adhesion utilizes a viscoelastic gel formed from xanthan gum. The gel is more viscous than blood and is soluble in aqueous solutions. The gel is placed between the tissues by a syringe. The method includes mixing the xanthan gum with either a saline solution or Ty
4900546 Bone cement for sustained release of substances February 13, 1990
A bone cement is disclosed wherein the liquid component contains a therapeutic or diagnostic substance in combination with an emulsifying agent for said substance.










 
 
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