Processing of implantable animal tissues for dry storage

A - Human Necessities – 61 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61L 27/36 (2006.01) A01N 1/00 (2006.01) A61L 2/08 (2006.01) A61L 2/20 (2006.01)

Patent

CA 2335152

A method that allows for dry storage of bioprosthetic devices comprising a tissue component is provided. The method comprises the steps of providing a device comprising a chemically cross-linked animal tissue component; treating the tissue component with an aqueous solution comprising a biocompatible, water soluble, organic molecule comprising a plurality of carbon atoms and a plurality of hydroxyl groups for a time sufficient to allow equilibration between the fluids in the interstices of the tissue component and the aqueous solution; and then sterilizing the treated tissue component using a sterilizing gas or ionizing radiation. The present invention also relates to an implantable tissue component that can be stored dry. The tissue component is chemically-fixed and comprises within the interstices thereof a dimensional stabilizer selected from the group consisting of a polyhydric alcohol and derivatives thereof, a water soluble carbohydrate, and a water soluble gum. The tissue component is disposed within the chamber of a package, the chamber being defined by one or more members formed from a material that is resistant to penetration by micro- organisms, particularly bacteria and fungi. The chamber and tissue component are sterile and essentially free of an aldehyde solution. Except for the liquids contained within the tissue component, the chamber is also essentially free of liquid.

L'invention concerne un procédé pour l'entreposage à sec de dispositifs à bioprothèse comprenant un composant tissulaire. Le procédé comprend les étapes suivantes: on prépare un dispositif comprenant un composant tissulaire animal réticulé chimiquement, on traite le composant tissulaire par une solution aqueuse comprenant une molécule organique hydrosoluble biocompatible, renfermant une pluralité d'atomes de carbone et une pluralité de groupes hydroxyle pendant un temps suffisant pour que l'équilibre s'établisse entre les fluides dans les interstices du composant tissulaire et la solution aqueuse, puis on stérilise le composant tissulaire traité au moyen d'un gaz stérilisant ou de rayonnement ionisant. L'invention concerne également un composant tissulaire implantable pouvant être conservé à sec. Le composant tissulaire est fixé chimiquement et renferme, dans ses interstices, un stabiliseur dimensionnel choisi dans le groupe comprenant un alcool polyhydrique et ses dérivés, un glucide hydrosoluble et une gomme hydrosoluble. Le composant tissulaire est disposé dans la chambre d'un ensemble, cette chambre étant délimitée par un ou plusieurs éléments formés d'un matériau qui est résistant à la pénétration par des micro-organismes, notamment bactéries et champignons. La chambre et le composant tissulaire sont stériles et sensiblement exempts d'une solution d'aldéhyde. A l'exception des liquides contenus dans le composant tissulaire, la chambre est également sensiblement dépourvue de liquide.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Processing of implantable animal tissues for dry storage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processing of implantable animal tissues for dry storage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processing of implantable animal tissues for dry storage will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1622253

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.