Gerät für die perkutane Chirurgie

摘要

The present invention relates to a device for use in percutaneous surgery. The device comprises an elongated cannula having an inner dimension and an outer dimension sized for percutaneous introduction into a patient. Said cannula has a distal working end and an opposite proximal end and defines a working channel between said ends, said working channel being sized to receive a tool therethrough. A viewing element is provided having a first end connectable to viewing apparatus and an opposite second end disposed adjacent said distal working end of said cannula. There is further provided a fixture supporting said viewing element adjacent said working channel with said second end disposed adjacent said working end of said cannula, and said working channel has an inner dimension substantially equal to the inner dimension of the cannula.