Abstract: In accordance with the present invention it has been found that a fibrin polymer film formed by applying materials most closely resembling the natural clotting materials to a surgical adhesion formation. Preferred embodiments involve application of a fibrin monomer under polymerizing conditions to the surgical wound site. Unexpectedly, in addition to this improved prevention of adhesions, the more chemically-natural clots, especially the fibrin-monomer based fibrin polymer, also functions as a fibrin sealant, i.e., has adherence, provides hemostasis and promotes wound healing while also functioning as a barrier. In preferred embodiments the novel methods of this invention conveniently use one or more plasma proteins derived from the patient's own blood as to be autologous. Further, the sealant material is preferably substantially free of any added or exogenous enzymes, e.g., thrombin, etc., which catalyze the cleavage of fibrinopeptides A and/or B from fibrinogen.

Abstract: In accordance with the present invention a novel fibrin polymer structure is disclosed. The novel fibrin polymer structure useful, for example, as a surgical sealant, is comprised of a plurality of discrete, droplets of polymerizing or polymerized fibrin each encapsulated by a “skin” of fibrin polymer. These fibrin-skin encapsulated droplets are applied so as to be built up one upon the other, layer by layer, to form an integral sealant structure. The cumulative effect of the encapsulating skins of those droplets which form the sealant surface is a surface skin which unexpectedly resists cell penetration but enhances cell migration across the surface. The sealant structure of the present invention can be prepared by spray delivery of fibrin polymer forming materials wherein the time required for the materials to commence polymerizing after mixing is less than or equal to the transit time of said materials from the applicator tip to the target surface.

Abstract: The invention provides a kit for preparing a fibrin sealant either (A) comprising: (a) a fibrin monomer preparation; (b) a stabilizing preparation containing a clot-preserving effective amount of a fibrinolysis-inhibiting protein; and (c) a non-enzymatic polymerizing agent preparation effective to convert the fibrin monomer preparation into a fibrin clot; or (B) comprising: (a′) a fibrin monomer preparation comprising a fibrin monomer and a clot-preserving effective amount of a of a fibrinolysis-inhibiting protein; and (c′) a polymerizing agent preparation effective to convert the fibrin monomer preparation into a fibrin clot.

Abstract: Provided is, among other things, a method of adhering cells to a target surface which is a tissue surface of a mammal or such a tissue surface coated with a biodegradable polymer sheet, comprising: coating the target surface with a mixture of a first component comprising a non-polymeric fibrin-related protein and a second component effective for converting the fibrin-related protein to fibrin polymer; and spraying a suspension of the cells onto the coated target surface, wherein the mixed two components have formed a fibrin polymer with a tack effective to adhere the cells.

Abstract: In accordance with the present invention a novel fibrin polymer structure is disclosed. The novel fibrin polymer structure useful, for example, as a surgical sealant, is comprised of a plurality of discrete, droplets of polymerizing or polymerized fibrin each encapsulated by a “skin” of fibrin polymer. These fibrin-skin encapsulated droplets are applied so as to be built up one upon the other, layer by layer, to form an integral sealant structure. The cumulative effect of the encapsulating skins of those droplets which form the sealant surface is a surface skin which unexpectedly resists cell penetration but enhances cell migration across the surface. The sealant structure of the present invention can be prepared by spray delivery of fibrin polymer forming materials wherein the time required for the materials to commence polymerizing after mixing is less than or equal to the transit time of said materials from the applicator tip to the target surface.

Abstract: In accordance with the present invention a novel fibrin polymer structure is disclosed. The novel fibrin polymer structure useful, for example, as a surgical sealant, is comprised of a plurality of discrete, droplets of polymerizing or polymerized fibrin each encapsulated by a “skin” of fibrin polymer. These fibrin-skin encapsulated droplets are applied so as to be built up one upon the other, layer by layer, to form an integral sealant structure. The cumulative effect of the encapsulating skins of those droplets which form the sealant surface is a surface skin which unexpectedly resists cell penetration but enhances cell migration across the surface. The sealant structure of the present invention can be prepared by spray delivery of fibrin polymer forming materials wherein the time required for the materials to commence polymerizing after mixing is less than or equal to the transit time of said materials from the applicator tip to the target surface.

Abstract: In accordance with the present invention a novel fibrin polymer structure is disclosed. The novel fibrin polymer structure useful, for example, as a surgical sealant, is comprised of a plurality of discrete, droplets of polymerizing or polymerized fibrin each encapsulated by a “skin” of fibrin polymer. These fibrin-skin encapsulated droplets are applied so as to be built up one upon the other, layer by layer, to form an integral sealant structure. The cumulative effect of the encapsulating skins of those droplets which form the sealant surface is a surface skin which unexpectedly resists cell penetration but enhances cell migration across the surface. The sealant structure of the present invention can be prepared by spray delivery of fibrin polymer forming materials wherein the time required for the materials to commence polymerizing after mixing is less than or equal to the transit time of said materials from the applicator tip to the target surface.

Abstract: Provided, for example, is a method of transforming a cell comprising the steps of: applying a transformation effective amount of a nucleic acid to the cell; applying a fibrin gel to the cell so as to entrap a transformation effective amount of the nucleic acid; and transforming the cell with the nucleic acid. In one aspect, the nucleic acid is applied in admixture with a fibrin or fibrinogen composition that forms the fibrin gel.

Abstract: Novel fibrin monomer compositions which are solutions including additional coharvested components, such as prothrombin and Factor XIII, are useful in fibrin sealant applications. Preferably, the compositions are autologous to the patient receiving the sealant and these compositions may also include coharvested plasminogen, Factor X, antithrombin III and/or fibronectin.

Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.

Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.

Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.

Abstract: This invention is directed to solid compositions, for example, lyophilized forms, of fibrin monomer. These compositions are useful wherever fibrin monomer could be employed, e.g., as a surgical sealant to provide hemostasis.

Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.

Abstract: The invention relates to fibrin sealants. More specifically, the invention relates to the preparation of a fibrin polymer wherein the polymer is substantially free of the enzyme.

Abstract: The subject invention relates to the use of thrombin in a medical procedure in an animal. More specifically, the subject invention relates to such use of thrombin wherein the thrombin is a thrombin blood fraction, is autologous to that animal.

Abstract: The subject invention relates to the use of thrombin in a medical procedure in an animal. More specifically, the subject invention relates to such use of thrombin wherein the thrombin is a thrombin blood fraction is autologous to that animal.

Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant.

Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin polymer is utilized as a component of the fibrin sealant.

Abstract: Novel kits for the preparation of a fibrin sealant are disclosed. In one kit a first component is fibrin monomer which can be polymerized to form a fibrin sealant when combined with the second component which is distilled water or an alkaline buffer.