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PubMed · 8372588

Development of steerable instruments for minimal invasive surgery in modular conception.

M O Schurr·A Melzer·P Dautzenberg·B Neisius·R Trapp·G Buess
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Abstract

The augmenting complexity of minimal invasive interventions requests a continuous improvement of technologies. Extended endoscopic procedures, e.g. laparoscopic-transanal sigmoidectomy or thoracoscopic esophagus dissection require difficult surgical manipulations like mobilisation, sceletonization as well as ligatures and sutures. They are difficult to perform with the present endo-surgical instruments. A major instrumental weakness is represented by the restricted steerability because of the rigid shaft axis and the resulting low degrees of freedom (DOF). Therefore a series of steerable flexible instruments has been developed in interdisciplinary cooperation between surgeons and engineers. The prototypes provide a multi-joint working as the instrument's elbow, which allows to incline the tip around +/- 280 degrees. The second additional DOF is the rotation of the surgical tool. The prototypes have been experimentally tested in laparoscopy and thoracoscopy, showing a clear improvement in the carrying out of complex operative manipulations. The further development is performed in modular conception, including electric drives.

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AnimalsBiomedical EngineeringElasticityEquipment DesignEsophagectomyLaparoscopesLaparoscopyMaterials TestingPatient Care TeamRotationSheepSigmoidoscopesSwineSystems AnalysisThoracoscopesJournal Article

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M O Schurr, A Melzer, P Dautzenberg, B Neisius, R Trapp, G Buess. Development of steerable instruments for minimal invasive surgery in modular conception.. https://pubmed.ncbi.nlm.nih.gov/8372588/

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