Scope and magnetic introducer systems and methods

Abstract

Exemplary scope systems and methods involve a cannula assembly, a sheath assembly, and a tubing set. A cannula assembly, which may be a non-magnetic scope cap assembly, can include a cannula body, a proximal housing having a strap, an optical window, and a luer for suction or flushing. A cannula body may include a first lumen or scope channel for receiving a visualization device such as an endoscope or laparoscope, a distal end having suction or flushing flush apertures, and a second lumen for providing fluid communication between the apertures and the luer. Exemplary magnetic introducer systems and methods involve a cannula assembly, a sheath assembly, a tubing set. In some cases, the cannula assembly of a magnetic introducer system can be a magnetic scope cap assembly. In addition to cannula and sheath assemblies, magnetic introducer systems can include a magnetic introducer tubing assembly and a stylet assembly.

We claim: 
     
         1 . A device for placing a treatment device at a location within a patient comprising:
 a cannula assembly having a first lumen and a second lumen,
 wherein the first lumen extends into a distal portion of the cannula assembly, 
 wherein the first lumen is adapted for receiving, and providing an optical window for, an endoscope, laparoscope, or other imaging device, and 
 wherein the second lumen includes an aperture near a distal section of the cannula assembly; 
   a connection at the proximal end of the cannula assembly to provide fluid communication for flushing or suction at the second lumen aperture; and   an attachment mechanism for removably attaching the cannula assembly to a treatment device.