Instrument System For Minimally Invasive Surgery In Single Port Technology

摘要

An instrument system for minimally invasive surgery in single port technology, having a trocar and at least one instrument channel which runs at the trocar from proximal to distal and a proximal end remaining extra-corporally when the trocar is inserted into the body of a patient, and a distal end located intra-corporally, wherein a semi-flexible instrument can be inserted through the instrument channel in such a manner that the operating handle thereof remains extra-corporal and the distal working element thereof emerges distally from the instrument channel. The instrument channel is flexibly pliant, stable in the longitudinal direction thereof and arranged outside on the trocar. The distal end of the instrument channel is fixed to the trocar.

主权项

1. An instrument system for minimally invasive surgery in single port technology, comprises:
a trocar with an instrument channel that runs from proximal to distal on the trocar and a proximal end that remains extracorporeal when the trocar is inserted into a body of a patient and a distal end that is located intracorporeally, wherein a semi-flexible instrument can be inserted through the instrument channel in such a way that a operating handle of the semi-flexible instrument remains extracorporeal and a distal working element of the semi-flexible instrument emerges distally from the instrument channel, wherein the instrument channel is flexibly pliant and stable in its longitudinal direction, wherein the distal end of the instrument channel is fixed on the trocar, wherein the instrument channel can be displaced axially and proximally in a guide on the trocar with a middle section, whereby the instrument channel is arranged on an outside of the trocar in its lengthwise region between the fixed distal end and the guide on the trocar and is bent laterally out and away from the trocar and forward beyond the distal end of the trocar when the instrument channel is pushed in the distal direction in the guide, and wherein the instrument channel has an outlet opening for the distal end of the instrument that is located in bending-out lengthwise regions (offset in the proximal direction from the fixed distal end.