A surgical training device, comprising: a model comprising a first simulated tissue having a tubular form comprising a first central lumen having an inner surface interconnecting an opening at the proximal end and an opening at a distal end; the model includes a first holder having a proximal end and a distal end;; the first holder is connected to the first simulated tissue such that the opening at the proximal end of the first simulated tissue is placed over the first holder locating at least a part of the first holder inside the first central lumen of the first simulated tissue;; the first simulated tissue being connected to the first holder such that the opening at the distal end of the first simulated tissue is distal to the distal end of the first holder by a length defining a first overhanging portion of the first simulated tissue; characterized in that the surgical training device further comprises: a second simulated tissue having a tubular form comprising a second central lumen interconnecting an opening at a proximal end and an opening at a distal end; the second simulated tissue is connected to the first holder such that the opening at the proximal end of the second simulated tissue is placed over the first holder locating at least a part of the first holder inside the second central lumen of the second simulated tissue; the second simulated tissue being connected to the first holder such that the opening of the distal end of the second simulated tissue is distal to the distal end of the first holder by a length defining a second overhanging portion; the first and second simulated tissues (38a, 38b) being substantially concentric creating two layers of simulated tissue, one on top of the other; the first simulated tissue, second simulated tissue and first holder being configured to maintain the opening at the distal end of the first overhanging portion and to maintain the opening at the distal end of the second overhanging portion. a model comprising a first simulated tissue having a tubular form comprising a first central lumen having an inner surface interconnecting an opening at the proximal end and an opening at a distal end; the model includes a first holder having a proximal end and a distal end;; the first holder is connected to the first simulated tissue such that the opening at the proximal end of the first simulated tissue is placed over the first holder locating at least a part of the first holder inside the first central lumen of the first simulated tissue;; the first simulated tissue being connected to the first holder such that the opening at the distal end of the first simulated tissue is distal to the distal end of the first holder by a length defining a first overhanging portion of the first simulated tissue; characterized in that the surgical training device further comprises: a second simulated tissue having a tubular form comprising a second central lumen interconnecting an opening at a proximal end and an opening at a distal end; the second simulated tissue is connected to the first holder such that the opening at the proximal end of the second simulated tissue is placed over the first holder locating at least a part of the first holder inside the second central lumen of the second simulated tissue; the second simulated tissue being connected to the first holder such that the opening of the distal end of the second simulated tissue is distal to the distal end of the first holder by a length defining a second overhanging portion; the first and second simulated tissues (38a, 38b) being substantially concentric creating two layers of simulated tissue, one on top of the other; the first simulated tissue, second simulated tissue and first holder being configured to maintain the opening at the distal end of the first overhanging portion and to maintain the opening at the distal end of the second overhanging portion. a second simulated tissue having a tubular form comprising a second central lumen interconnecting an opening at a proximal end and an opening at a distal end; the second simulated tissue is connected to the first holder such that the opening at the proximal end of the second simulated tissue is placed over the first holder locating at least a part of the first holder inside the second central lumen of the second simulated tissue; the second simulated tissue being connected to the first holder such that the opening of the distal end of the second simulated tissue is distal to the distal end of the first holder by a length defining a second overhanging portion; the first and second simulated tissues (38a, 38b) being substantially concentric creating two layers of simulated tissue, one on top of the other; the first simulated tissue, second simulated tissue and first holder being configured to maintain the opening at the distal end of the first overhanging portion and to maintain the opening at the distal end of the second overhanging portion.