Patent ID: 6156006
Filing Date: 2000-12-05
Classification: A61B

Abstract:
A medical instrument system comprising:a first cannula;a first assembly comprising a first dilating obturator and a Veress needle assembly, the Veress needle assembly extending through the dilating obturator and the first assembly being positionable through the cannula;a second assembly comprising a first working sheath and a telescope, the telescope extending through the working sheath, the working sheath having an accessory device inlet, and the second assembly being positionable through the cannula,wherein the first and second assemblies are alternatively positionable through the cannula, and wherein the first assembly is first used with the cannula to position the cannula through tissue of a patient, the first assembly is then removed from the cannula, and the second assembly is then positioned into the cannula to enable viewing and interaction with the patient beyond the tissue.