Warsaw Orthopedic, Inc.

Osteotech, Inc.

John Winterbottom

Todd M Boyce

Lawrence A Shimp

David R Kaes

David Knaack

Nanette Forsyth

Guobao Wei

Keyvan Behnam

James L Russell

Subhabrata Bhattacharyya

James Beisser

Deger C Tunc

Erik O Martz

Mohamed Attawia

John W Morris

Albert Manrique

Fred H Geisler

Cristy Richards

Kathy Traianedes

Christina Mossaad

Michele Diegman

Randal R Betz

Michael F O'Brien

Sigurd H Berven

Jo-Wen Lin

Ryan Belaney

Perry Geremakis

Alexis P Shelokov

Jennifer Grasso

Robert Waterman

Larry Shimp

Cristy J Richards

Biological-based polyurethanes and methods of making the same. The polyurethanes are formed by reacting a biodegradable polyisocyanate (such as lysine diisocyanate) with an optionally hydroxylated biomolecule to form polyurethane. The polymers formed may be combined with ceramic and/or bone particles to form a composite, which may be used as an osteoimplant.

Polyurethanes for osteoimplants

An osteoimplant composite comprising a plurality of particles of an inorganic material, a bone substitute material, a bone-derived material, or any combination thereof; and a polymer material with which the particles are combined. The composite is either naturally moldable or flowable, or it can be made moldable or settable. After implantation, the composite may be set to provide mechanical strength to the implant. The inventive composite have the advantage of being able to fill irregularly shape implantation site while at the same time being settable to provide the mechanical strength required for most orthopedic applications. The invention also provides methods of using and preparing the moldable and flowable composites.

Injectable and moldable bone substitute materials

A covering for delivering a substance or material to a surgical site is provided. The covering, with substance provided therein, may be referred to as a delivery system. Generally, the covering may be a single or multi-compartment structure capable of at least partially retaining a substance provided therein until the covering is placed at a surgical site. Upon placement, the covering may facilitate transfer of the substance or surrounding materials. For example, the substance may be released (actively or passively) to the surgical site. The covering may participate in, control, or otherwise adjust, the release of the substance.

Delivery system attachment

Methods for forming implantable compositions are provided. In some embodiments, the methods include (i) providing a gel base, (ii) adding water and a hydrating agent to the gel base to form a mixture, (iii) reducing the water content of the mixture; and (iv) adding a delivered material before, during, and/or after step (ii) or (iii). The water content is reduced to about 5% or less by weight of the implantable composition.

Implantable compositions and methods for preparing the same

Delivery system

An osteoinductive demineralized bone matrix, corresponding osteoimplants, and methods for making the osteoinductive demineralized bone matrix are disclosed. The osteoinductive demineralized bone matrix may be prepared by providing demineralized bone and altering the collagenous structure of the bone. The osteoinductive demineralized bone matrix may also be prepared by providing demineralized bone and compacting the bone, for example via mechanical compaction, grinding into a particulate, or treatment with a chemical. Additives such as growth factors or bioactive agents may be added to the osteoinductive demineralized bone matrix. The osteoinductive demineralized bone matrix may form an osteogenic osteoimplant. The osteoimplant, when implanted in a mammalian body, may induce at the locus of the implant the full developmental cascade of endochondral bone formation including vascularization, mineralization, and bone marrow differentiation. The osteoinductive demineralized bone matrix may also be used as a delivery device to administer bioactive agents.

Osteoinductive demineralized cancellous bone

A composite osteoimplant. The osteoimplant includes a polymer and bone-derived particles. The composite is adapted and constructed to be formable during or immediately prior to implantation and to be set after final surgical placement.

Formable and settable polymer bone composite and methods of production thereof

Growing community of inventors

Jackson, NJ, United States of America

John Winterbottom