Abstract: A thermally modified microbial-derived cellulose material is described for use as an implantable material in general surgery, plastic surgery and neurosurgery.
Type:
Grant
Filed:
August 18, 2004
Date of Patent:
June 12, 2012
Assignee:
Xylos Corporation
Inventors:
Christopher James Damien, Gerry Ann Oster, Heather Ann Beam
Abstract: This application describes a bioresorbable biocellulose suitable for medical and surgical applications. In particular, the invention describes periodate oxidized microbial cellulose that can be produced to have any mechanical and degradation profile, depending on the desired application of the oxidized cellulose.
Type:
Grant
Filed:
January 31, 2007
Date of Patent:
May 4, 2010
Assignee:
Xylos Corporation
Inventors:
Jeremy J. Harris, Gonzalo Serafica, Christopher J. Damien, Heather R. Nonnenmann
Abstract: This invention relates to a process for preparing bioabsorbable oxidized cellulose comprising combining cellulose material, with nitrogen dioxide and a nonaqueous solvent chosen from the class of perfluorinated tertiary amines. This invention also relates to a method of oxidizing cellulose material comprising introducing a solvent into the vessel, circulating the solvent through the cellulose material, adding nitrogen dioxide to said vessel containing the solvent and cellulose in the required amounts, circulating the solution for 7 to 24 hours while controlling the reaction temperature, and isolating the oxidized material. Preferably, isolation of the oxidized product is followed by first washing the oxidized cellulose material with cold water, then washing the oxidized cellulose material with an aqueous alcohol solution several times, then washing the material with 100% alcohol several times, and finally drying the oxidized material.
Abstract: The invention relates to a wound dressing comprising a microbial-derived cellulose for treatment of specific types of chronic wounds, including pressure sores, venous and diabetic ulcers. The wound dressing is capable of donating liquid to dry substrates is also capable of absorbing exudating wounds.
Type:
Application
Filed:
December 11, 2003
Publication date:
August 19, 2004
Applicant:
Xylos Corporation
Inventors:
Gonzalo Serafica, Richard Mormino, Gerry Ann Oster, Kevn E. Lentz, Kevin P. Koehler
Abstract: A microbial-derived cellulose wound dressing is provided which is in the form of a hydrogel which can be used to treat chronic wounds and burns.
Type:
Application
Filed:
January 16, 2003
Publication date:
July 22, 2004
Applicant:
Xylos Corporation
Inventors:
Gonzalo Serafica, Richard Mormino, Russell A. Hoon
Abstract: The invention relates to a wound dressing comprising a microbial-derived cellulose for treatment of specific types of chronic wounds, including pressure sores, venous and diabetic ulcers. The wound dressing is capable of donating liquid to dry substances is also capable of absorbing exudating wounds.
Type:
Application
Filed:
April 30, 2003
Publication date:
February 12, 2004
Applicant:
Xylos Corporation
Inventors:
Gonzalo Serafica, Richard Mormino, Gerry Ann Oster, Kevin E. Lentz, Kevin P. Koehler
Abstract: The invention relates to a wound dressing comprising a microbial-derived cellulose for treatment of specific types of chronic wounds, including pressure sores, venous and diabetic ulcers. The wound dressing is capable of donating liquid to dry substrates is also capable of absorbing exudating wounds.
Type:
Application
Filed:
April 26, 2002
Publication date:
October 30, 2003
Applicant:
Xylos Corporation
Inventors:
Gonzalo Serafica, Richard Mormino, Gerry Ann Oster, Kevin E. Lentz, Kevin P. Koehler
Abstract: The invention relates to a wound dressing comprising a microbial-derived cellulose for treatment of specific types of chronic wounds, including pressure sores, venous and diabetic ulcers. The wound dressing is capable of donating liquid to dry substrates is also capable of absorbing exudating wounds.
Type:
Application
Filed:
June 18, 2002
Publication date:
October 30, 2003
Applicant:
Xylos Corporation
Inventors:
Gonzalo Serafica, Richard Mormino, Gerry Ann Oster, Kevin E. Lentz, Kevin P. Koehler