Balloon Catheter Insertion Device with Recess Position Indicator

A recess is provided in the tubular base body that serves as an intermediary structure to receive and indicate the position of the shaft. This recess acts as a mediator between the shaft and the external observer, enabling position determination without complex monitoring systems. The recess allows direct visualization of the shaft's position relative to the base body, solving the position determination problem while maintaining relatively simple device structure.

A stop is provided in the recess that prevents the shaft from being inserted beyond a predetermined depth. This stop mechanism applies preliminary anti-action by physically blocking further insertion before the balloon catheter can reach harmful depths. The stop is positioned within the recess to automatically engage with the shaft, creating a mechanical limit that prevents overinsertion and protects adjacent organs while maintaining ease of operation within safe limits.

The recess creates a visual copy or representation of the shaft's position within the tubular base body. By providing a recess that receives the shaft and allows it to be visualized from the outside, the device creates a tangible indicator of catheter position without requiring complex electronic monitoring systems. This copying approach enables position determination through direct observation of the shaft's location relative to the base body and recess, maintaining simplicity while achieving measurement precision.