Artimplant Ab

Artimplant Development Artdev Ab

Polyrand Ab and Polycell Kompositer

Per Flodin

Katrin Gisself&auml;lt

Carl-Johan Aurell

Pawel Zadorecki

A method for preparing an open pourous polymer material, comprises forming of a polymer solution, addition of a porogen to the polymer solution and precipitation with water of polymer from the polymer solution, and the method then comprises removal of solvent and porogen from the polymer material wherein the precipitation is homogenous through that the water is in form of crystal water and that the crystal water is bonded to the porogen, wherein the porogen is a sugar hydrate. An open porous polymer material, a mixture comprising a sugar hydrate and a polymer solution, and a designed material, and uses thereof are also disclosed.

Method for preparing an open porous polymer material and an open porous polymer material

Porous films for medical use are provided comprising linear block polymers of polyurethane and urea containing hydrolyzable ester groups which are spaced along the carbon chain backbone of the film predetermined distances, so that upon hydrolysis of the ester groups fragments of the polymer are formed which have a size which can be secreted from the body of a mammal, the porous film including pores having an average pore size of up to 600 &mgr;m.

Film for medical use, consisting of linear block polymers of polyurethane and a method for the production of such a film

Implants are disclosed for use in humans having a rigidity comparable to human bone comprising polyurethane with hydrolysable ester linkages which are spaced apart to provide hydrolysis fragments which are sufficiently small to be resorbed in the human body, the polyurethane comprising a network polymer which is substantially free of urea groups. Methods for the production of such implants are also disclosed.

Shaped bodies for use as implants in human medicine and method for the production of such shaped bodies

Linear block polymer having a molecular weight of at least 10,Dalton, comprising urea and urethane groups and ester groups at such a distance from each other that after hydrolysis of these ester groups fragments are created which are so small that they are biologically degradable and can be excreted from a human body and further including an end group selected from primary NH,and OH groups, which can be substituted by a monoamine. The polymers are intended to be used as implants.

Growing community of inventors

Hovås, Sweden

Per Flodin