Adhesive for medical applications and means for haemostasis
View Patent ↗The invention relates to a kit comprising the following individual components: (a) polymers comprising at least one free amino group, (b) bridge molecules selected from the group consisting of monocyclic ortho-dihydroxyaromates, mono-cyclic para-dihydroxyaromates, bicyclic monohydrxyaromates, polycyclic monohydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof, and (c) polyphenoloxidases, in particular, lignolytic polyphenoloxidases, whereby the individual components b) and c) are not in contact.
1. A kit comprising the following individual components:
(a) polymers having at least one free amino group;
(b) bridge molecules, selected from the group consisting of monocyclic ortho-dihydroxyaromates, monocyclic para-dihydroxyaromates, bicyclic monohydroxyaromates, polycyclic monohydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof; and
(c) polyphenoloxidases,
wherein the individual components (b) and (c) are not in contact.
2. The kit according to claim 1 , wherein the free amino group is obtained through a diamino acid.
3. The kit according to claim 1 , or claim 2 , wherein the polymers are in contact with the dihydroxyaromates.
4. The kit according to any one of claim 1 or 2 , wherein the kit is a syringe having two cannulae by which the dihydroxyaromates and the polyphenoloxidases can be administered separately.
5. An adhesive comprising the following components:
(a) polymers having at least one free amino group, wherein the polymers are not part of the human body;
(b) bridge molecules, selected from the group consisting of monocyclic ortho-dihydroxyaromates, monocyclic para-dihydroxyaromates, bicyclic monohydroxyaromates, polycyclic monohydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof; and
(c) polyphenoloxidases,
wherein the individual components (b) and (c) are in contact.
6. The adhesive according to claim 5 , wherein the individual components (a)-(c) are in contact.
7. The kit of claim 1 or adhesive of claim 5 , wherein the kit or adhesive comprises as a further individual component (d) a zeolite granulate.
8. The kit according to claim 7 , wherein the zeolite granulate is not in contact with the other individual components (a) to (c).
9. The adhesive according to claim 7 , wherein the zeolite granulate is in contact with the other individual components.
10. The kit of claim 1 or adhesive of claim 5 , wherein the aromates (b) are substituted.
11. The kit of claim 1 or adhesive of claim 5 , wherein the dihydroxyaromates are 2,5-dihydroxybenzamides.
12. The kit of claim 1 or adhesive of claim 5 , wherein the dihydroxyaromates are 2,5-dihydroxy-N-(2-hydroxyethyl)-benzamide.
13. The kit of claim 1 or adhesive of claim 5 , wherein the polyphenoloxidases are laccases.
14. The kit of claim 1 or adhesive of claim 5 , wherein the polymers are selected from the group consisting of oligopeptides, peptides, and proteins.
15. The kit of claim 1 or adhesive of claim 5 , wherein the polymers contain lysine.
16. The kit of claim 1 or adhesive of claim 5 , wherein the polymers are lysine-containing oligopeptides or collagen.
17. The kit as set forth in claim 1 wherein the polyphenoloxidases are lignolytic polyphenoloxidases.
18. A method for forming a surgical adhesive comprising providing a polymer component having at least one free amino group and crosslinking the polymer component by means of bridge molecules using a polyphenoloxidase component, wherein the bridge molecules are selected from the group consisting of monocyclic ortho-dihydroxyaromates, monocyclic para-dihydroxyaromates, bicyclic monohydroxyaromates, polycyclic monohydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof.
19. The method as set forth in claim 18 further comprising:
the polymer component having at least one free amino group, the polyphenoloxidases component and the component containing bridge molecules are contained in two separate storage chambers prior to crosslinking, with the polyphenoloxidases and the bridge chambers molecules supplied in separate chambers of the two chambers.
20. The method as set forth in claim 19 , wherein the separate chambers are two separate syringes.
21. The method as set forth in claim 19 further comprising mixing zeolite granules into at least one of the two chambers containing the components.
22. The method as set forth in claim 19 , wherein the polymer having at least one free amino group is a peptide.
23. The method as set forth in claim 22 , wherein the peptide comprises at least one diamino acid.
24. The method as set forth in claim 19 , wherein the components are dissolved in a phosphate buffer.
25. A method for closing a wound comprising:
providing a polymer component having at least one free amino group and crosslinking the polymer component by means of bridge molecules using a polyphenoloxidase component wherein the bridge molecules are selected from the group consisting of monocyclic ortho-dihydroxyaromates, monocyclic para-dihydroxyaromates, bicyclic monohydroxyaromates, polycyclic monohydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof, the polyphenoloxidase component and the bridge molecules contained in separate chambers;
discharging the components from each chamber and forming a mixture; and
applying the mixture to the wound.
26. A kit comprising the following individual components:
(a) polymers having at least one free amino group;
(b) bridge molecules, selected from the group consisting of monocyclic ortho-dihydroxyaromates, monocyclic para-dihydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof; and
(c) polyphenoloxidases,
wherein the individual components (b) and (c) are not in contact.
27. An adhesive comprising the following components:
(a) polymers having at least one free amino group, wherein the polymers are not part of the human body;
(b) bridge molecules, selected from the group consisting of monocyclic ortho-dihydroxyaromates, monocyclic para-dihydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof; and
(c) polyphenoloxidases,
wherein the individual components (b) and (c) are in contact.