Patent ID: 7198599
Filing Date: 2007-04-03
Classification: A61B

Abstract:
1. An endoscope apparatus comprising: an endoscope; a catheter used in combination with the endoscope, the endoscope comprising an insert section which is inserted into a lumen, a control section coupled to the proximal end portion of the insert section, an instrument channel located in the insert section, and a channel opening portion which is located in the control section and communicates with the proximal portion of the instrument channel, the catheter having a catheter insert portion which is inserted into the instrument channel through the channel opening portion, the catheter insert portion having a guide wire lumen formed inside; a catheter control portion coupled to the proximal end portion of the catheter insert portion, the catheter control portion having at least one of a guide wire opening portion communicating with the guide wire lumen, a liquid feed opening portion and a catheter control handle; and a connecting device which releasably connects the catheter control portion to the control section of the endoscope; wherein the connecting device has an engaging hole formed near the channel opening portion and an engaging projection protruding from the catheter control portion and releasably in engagement with the engaging hole.