Biological Bioadhesive composition and methods of preparation and use
First Claim
1. A biological tissue adhesive for injection into a human body, the tissue adhesive comprising combined fibrinogen and thrombin, and a corticosteroid treatment agent.
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Abstract
The present invention relates generally to the preparation and use of biological tissue adhesives which rely on combining fibrinogen and thrombin. More particularly, the present invention relates to a method of preparing a fibrin sealant whereby said sealant is formed by reconstituting the fibrinogen or the thrombin component in the presence of biological and/or non-biological agents such as drugs, chemicals, and proteins. Preferably, these agents are introduced in solution, such as for example, a corticosteroid-containing solution like a betamethasone solution containing betamethasone acetate or betamethasone sodium phosphate; a triamicinolone solution; or a methylprednisolone solution. These solutions may be substituted for, or provided as a complement to, other solutions that are typically used in the preparation of fibrin sealants such as, for example, calcium chloride. The invention further relates to a novel method of using the improved fibrin sealant whereby the sealant and accompanying agent(s) are delivered directly to a critical site within the body and sealed in place due to the bio-static quality of the sealant. This provides therapeutic value to patients through prolonged presence, and optionally time-released delivery, of the specific agent(s) at the critical site.
101 Citations
48 Claims
- 1. A biological tissue adhesive for injection into a human body, the tissue adhesive comprising combined fibrinogen and thrombin, and a corticosteroid treatment agent.
- 16. A biological tissue adhesive for injection into a human body, the tissue adhesive comprising combined fibrinogen and thrombin, wherein at least one of the fibrinogen and thrombin is mixed, prior to combination of the fibrinogen and thrombin, with a solution comprising corticosteroid treatment agent and calcium chloride.
- 23. A biological tissue adhesive comprising combined fibrinogen and thrombin and a corticosteroid treatment agent injected into biological tissue.
- 40. A biological tissue adhesive comprising fibrinogen and thrombin combined during injection into biological tissue, wherein at least one of the fibrinogen and thrombin is mixed, prior to combination of the fibrinogen and thrombin, with a solution comprising corticosteroid treatment agent and calcium chloride.
Specification