Medical Implant, comprising - a microbial cellulose tube, comprising a wall having an inner surface and an outer surface, wherein the wall comprises several layers (5, 6, 7) of microbial cellulose, wherein said layers are concentric or substantially concentric to a longitudinal axis of the tube, - a stent which is placed inside of the microbial cellulose tube, wherein the microbial cellulose tube is obtainable by a method comprising following steps: a) contacting the surface of a template which is a negative mold of a cavity of the microbial cellulose tube and of the inner wall of the cavity, with a stock mixture comprising a liquid culture medium and a cellulose-producing microorganism, b) interrupting of the contact between the template and the stock mixture, wherein on the surface of the template, a liquid film remains comprising the liquid culture medium and the microorganism c) contacting of the liquid film with an oxygen-containing atmosphere and formation of microbial cellulose in and/or on the liquid film, d) contacting the microbial cellulose obtained in step c) with the stock mixture, e) interrupting the contact between the microbial cellulose and the stock mixture wherein on the surface of the microbial cellulose is a film of liquid is left, which comprises the liquid culture medium and the microorganism, f) contacting the liquid film with an oxygen-containing atmosphere and formation of microbial cellulose in and / or on the liquid film, wherein the sequence of steps d), e) and f) is repeated one or more times, g) separating the microbial cellulose from the template. - a microbial cellulose tube, comprising a wall having an inner surface and an outer surface, wherein the wall comprises several layers (5, 6, 7) of microbial cellulose, wherein said layers are concentric or substantially concentric to a longitudinal axis of the tube, - a stent which is placed inside of the microbial cellulose tube, wherein the microbial cellulose tube is obtainable by a method comprising following steps: a) contacting the surface of a template which is a negative mold of a cavity of the microbial cellulose tube and of the inner wall of the cavity, with a stock mixture comprising a liquid culture medium and a cellulose-producing microorganism, b) interrupting of the contact between the template and the stock mixture, wherein on the surface of the template, a liquid film remains comprising the liquid culture medium and the microorganism c) contacting of the liquid film with an oxygen-containing atmosphere and formation of microbial cellulose in and/or on the liquid film, d) contacting the microbial cellulose obtained in step c) with the stock mixture, e) interrupting the contact between the microbial cellulose and the stock mixture wherein on the surface of the microbial cellulose is a film of liquid is left, which comprises the liquid culture medium and the microorganism, f) contacting the liquid film with an oxygen-containing atmosphere and formation of microbial cellulose in and / or on the liquid film, wherein the sequence of steps d), e) and f) is repeated one or more times, g) separating the microbial cellulose from the template. a) contacting the surface of a template which is a negative mold of a cavity of the microbial cellulose tube and of the inner wall of the cavity, with a stock mixture comprising a liquid culture medium and a cellulose-producing microorganism, b) interrupting of the contact between the template and the stock mixture, wherein on the surface of the template, a liquid film remains comprising the liquid culture medium and the microorganism c) contacting of the liquid film with an oxygen-containing atmosphere and formation of microbial cellulose in and/or on the liquid film, d) contacting the microbial cellulose obtained in step c) with the stock mixture, e) interrupting the contact between the microbial cellulose and the stock mixture wherein on the surface of the microbial cellulose is a film of liquid is left, which comprises the liquid culture medium and the microorganism, f) contacting the liquid film with an oxygen-containing atmosphere and formation of microbial cellulose in and / or on the liquid film, wherein the sequence of steps d), e) and f) is repeated one or more times, g) separating the microbial cellulose from the template.