On cutting and dissection of virtual deformable objects

Tissue dissection is an important procedure in surgical simulation systems. Dissection involves cutting through and separating the tissue after a cut. In this paper, we use a surface mass-spring model to simulate virtual dissection by progressive subdivision and re-meshing. We introduce novel algorithms to generate interior structures that show the cutting result generated by the interaction between instrument and model. In addition, a novel data structure for object representation after the cutting action is proposed which allows the original soft object to be divided and a portion manipulated away. The dissection environment can support a number of user interface devices which can manipulate different representation of virtual instruments. These techniques are being integrated into a training environment for both open and minimally invasive surgery.

[1]  V M Spitzer,et al.  Real-time visually and haptically accurate surgical simulation. , 1996, Studies in health technology and informatics.

[2]  M. Srinivasan,et al.  Simulation of tissue cutting and bleeding for laparoscopic surgery using auxiliary surfaces. , 1999, Studies in health technology and informatics.

[3]  Markus H. Gross,et al.  Interactive Cuts through 3‐Dimensional Soft Tissue , 1999, Comput. Graph. Forum.

[4]  Markus H. Gross,et al.  Interactive simulation of surgical cuts , 2000, Proceedings the Eighth Pacific Conference on Computer Graphics and Applications.

[5]  Stephane Cotin,et al.  A hybrid elastic model for real-time cutting, deformations, and force feedback for surgery training and simulation , 2000, The Visual Computer.

[6]  Takeo Kanade,et al.  Modifying Soft Tissue Models: Progressive Cutting with Minimal New Element Creation , 2000, MICCAI.

[7]  Paolo Cignoni,et al.  Enabling cuts on multiresolution representation , 2001, The Visual Computer.

[8]  Han-Wen Nienhuys,et al.  Supporting cuts and finite element deformation in interactive surgery simulation , 2001 .

[9]  Kevin Montgomery,et al.  Generalized interactions using virtual tools within the spring framework: cutting. , 2002, Studies in health technology and informatics.

[10]  Daniel Bielser,et al.  Open surgery simulation. , 2002, Studies in health technology and informatics.

[11]  Simon Wildermuth,et al.  A survey of interactive mesh-cutting techniques and a new method for implementing generalized interactive mesh cutting using virtual tools , 2002, Comput. Animat. Virtual Worlds.

[12]  Jian Zhang,et al.  Haptic subdivision: an approach to defining level-of-detail in haptic rendering , 2002, Proceedings 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. HAPTICS 2002.

[13]  Hui Zhang,et al.  Demo: a multi-modal training environment for surgeons , 2003, ICMI '03.

[14]  Christian Laugier,et al.  Simulating cutting in surgery applications using haptics and finite element models , 2003, IEEE Virtual Reality, 2003. Proceedings..

[15]  S. Payandeh,et al.  Acquiring laparoscopic manipulative skills: a virtual tissue dissection training module. , 2004, Studies in health technology and informatics.