Entwicklung und Evaluierung eines laserbasierten Prozesses zur Fusion von Dickdarmgewebe
This dissertation contains a process development of a fusion process for colon tissue by using a diode laser with a wavelength of 1470 nm. The first part of the paper describes the study of a state-of-the-art HF-bipolar vessel sealing device/process (LigaSure, Valleylab/Covidien) to establish general information about a thermal tissue fusion process. Based on those background informations, it was possible to start a development of a laser based colon tissue fusion under lab conditions in the second part of the paper. The result of this development is an automatic impedance feedback controlled laser fusion process of colon tissue which creates reproducible high peel strength. In addition, a theoretical examination regarding to the energy consumption and the impedance in the developed process confirmes the result of the process evaluation. With this energy based process is it possible to produce sealed colon tissue fusions which can be used in the future for colon anastomosis or with a further process transfer for the fusion of other tissues like oesophagus, stomach, tendons or ligaments.
Subject HeadingsAnastomose [GND]
Anatomosis, surgical [MeSH]