A medical device comprising suture wings that can be detached or attached at various receiving positions about the housing and entry site of the medical device, allows subcutaneous suturing of the device in a manner and at locations as determined by the physician. In one embodiment, the bias supply circuit includes a bias supply winding associated with the transformer and configured to provide a first voltage dependent on at least one of the input voltage and the voltage across the clamp capacitor during a conduction period of the main switch or the auxiliary switch. Even in the fixed state, the organ manipulator maintains a limited freedom of movement, to allow the organ held to continue to move substantially according to its natural motion during functioning. The traction elements may have an indented surface.