Fibrin foam and process

A - Human Necessities – 61 – L

Patent

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Details

A61L 26/00 (2006.01) A61L 15/42 (2006.01)

Patent

CA 2719642

A fibrin wound dressing is made by mixing quantities of fibrinogen solution and thrombin solution with air. The resulting foam is very light weight, and with the proper attention to the amount of thrombin, is also sufficiently viscous to rest on a vertical surface without dripping. The wound dressing may also be formulated for its ability to continue migration of healing substances, such as PDGF, from the dressing to the wound site. Thrombin substitutes, such as other clotting proteins, may be used instead of thrombin. The resulting foam may also be lyophilized or ground and lyophilized for later reconstitution. A therapeutic drug or other additive may also be added to the wound dressing.

La présente invention concerne un pansement de fibrine réalisé par le mélange de quantités de solution à base de fibrinogène et une solution à base de thrombine. La mousse obtenue est très légère, et grâce à une quantité de thrombine appropriée, est également suffisamment visqueuse pour être déposée sur une surface verticale sans égoutture. Le pansement peut également être formulé pour sa capacité de maintenir une migration de substances de cicatrisation, tel que le facteur de croissance dérivé des plaquettes (PDGF), depuis le pansement vers le site de la lésion. Des substituts de thrombine, telles que des protéines de coagulation, peuvent également être utilisés au lieu de thrombine. La mousse obtenue peut également être lyophilisée ou broyée pour une reconstitution ultérieure. Un médicament thérapeutique ou autre additif peut également être ajouté au pansement.

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