Other

Clemson University

Rhode Island Board of Education

Biosurfaces, Inc.

Beth Israel Deaconess Medical Center, Inc.

Worcester Polytechnic Institute

University of Rhode Island

Bioscurfaces, Inc.

Biomod Surfaces

Matthew D Phaneuf

Martin J Bide

Philip J Brown

William C Quist

Frank W Logerfo

Donald J Dempsey

Glenn R Gaudette

Frank W LoGerfo

Brian Almeida

Helena Alfonzo

Syed Ali

Katie Flynn

The present invention is a bioactive, nanofibrous material construct which is manufactured using a unique electrospinning perfusion methodology. One embodiment provides a nanofibrous biocomposite material formed as a discrete textile fabric from a prepared liquid admixture of (i) a non-biodegradable durable synthetic polymer; (ii) a biologically active agent; and (iii) a liquid organic carrier. These biologically-active agents are chemical compounds which retain their recognized biological activity both before and after becoming non-permanently bound to the formed textile material; and will become subsequently released in-situ as discrete freely mobile agents front the fabric upon uptake of water from the ambient environment.

Nanofibrous materials as drug, protein, or genetic release vehicles

The present invention is a bioactive, nanofibrous material construct which is manufactured using a unique electrospinning perfusion methodology. One embodiment provides a nanofibrous biocomposite material formed as a discrete textile fabric from a prepared liquid admixture of (i) a non-biodegradable durable synthetic polymer; (ii) a biologically active agent; and (iii) a liquid organic carrier. These biologically-active agents are chemical compounds which retain their recognized biological activity both before and after becoming non-permanently bound to the formed textile material; and will become subsequently released in-situ as discrete freely mobile agents from the fabric upon uptake of water from the ambient environment.

Electrospinning process for making a textile suitable for use as a medical article

The invention is directed to a device and method to prevent migration of Human Mesenchymal Stem Cells (hMSCs) from a delivery site while allowing communication between the stem cells and native cardiomyocytes. The device is characterized by scaffold pore size, fiber diameter and biomaterial selection. The invention includes a two part polyurethane scaffold that prevents migration of stem cells, allows gap junction formation through pores and is packaged for minimally invasive delivery.

Nanofibrous scaffold comprising immobilized cells

The present invention provides a bioactive, small-diameter (typically less than 6 mm in internal diameter) vascular graft prosthesis, and is a textile conduit preferably manufactured using a novel electrospinning perfusion methodology. One preferred embodiment is a nanofibrous biocomposite textile conduit which comprises a prepared liquid admixture of polyester (Dacron), a biodurable implantable synthetic polymer, and Type IV collagen, an extracellular matrix protein. This prepared admixture and blending of diverse fibrous matter is utilized in a novel electrospinning perfusion process to form a small-diameter (less than 6 mm) fabricated textile conduit, a discrete article of manufacture, which then serves as an antecedent tangible workpiece for a subsequently-made prosthetic vascular graft construct.

Nanofibrous biocomposite prosthetic vascular graft

The invention features a method of treating polyester material to generate functional carboxylic acid and amine groups. These functional groups can be used as sites for covalent bond formation to attach chemical or biological moieties. This bifunctionalized polyester polymer can be used in any medical application in which biocompatible polymers are used.

Bifunctionalized polyester material for surface treatment and biomodification

Provided is a biocompatible device which has been coated or sealed with a polyether or polyether/carbonate based urethane polymer that contains functional groups (e.g. carboxylic acid groups) which are capable of serving as anchor sites for protein binding.

Polyurethane-sealed biocompatible device and method for its preparation

The present invention provides a method for making an infection-resistant fabricated textile article which is suitable for any in-vivo usage either as a topical bandage, on an implantable configured construct, or as part of a prosthetic mechanical appliance. The method of manufacture applies broadly to any and all fabrics, cloths, gauzes, and/or films comprised in whole or in part of fibers; and provides an infection-resistant textile of valued use in a wide range and variety of medical applications.

Method for making infection-resistant fabricated textile articles for biomedical applications

Growing community of inventors

Ashland, MA, United States of America

Matthew D Phaneuf