Abstract: This invention relates to a method for generating a virtual anatomic environment for use in minimally invasive surgery simulation, comprising the steps of: incorporating a main virtual anatomic environment (1); selecting a local anatomic environment (2) from a predefined library (3) comprising a set of two or more simulated local anatomic environments (2); including the selected local anatomic environment (2) in said main anatomic environment (1) to form a total virtual anatomic environment (4). The invention also relates to a device for generating a virtual anatomic environment for use in minimally invasive surgery simulation, as well as a computer-based minimal-invasive surgery simulation system comprising such a device.

Abstract: A method and a system are for simulating a surgical procedure on a bodily object, such as an organ, in a virtual environment. The virtual environment includes a three-dimensional mathematically described model of the bodily object which reflects geometrical and mechanical properties, and a virtual instrument that is controlled by a physical feeding device, which makes it possible to affect the model. The method includes the steps of representing a two-dimensional projection of the model by way of a video sequence containing a recorded view of a real bodily object, wherein engagement with the virtual instrument only involves interacting with the model. In addition, a method is for simulating an operation containing several surgical procedures.

Abstract: A gastrointestinal electrode device is disclosed, comprising an electrode head intended to be implanted in a stomach wall for emission or reception of electrical signals and a flexible cable with an outer isolation layer. The flexible cable is connected to the electrode head for forwarding the electric signals to an external side of the electrode device. The electrode head comprises flexible expandable retention means and at least one electrode contact area arranged to cover at least a part of the outer electrode head area. Further the expandable retention means are automatically expandable from an condition of insertion into an expanded condition for opposing retraction of the electrode via the aperture of insertion, thus making the electrode attachable to the living organ.