Endoscope

Abstract

The present invention relates to an endoscope. The present invention may include an endoscope main body; and a guide cap that is mounted to be fixed to a front end of the endoscope main body when inserting the endoscope main body into a human body and slides to protrude toward the front of the endoscope main body when withdrawing the endoscope main body inserted into the human body. An object of the present invention is to facilitate insertion of the endoscope by freely varying a length of the cap from the front end of the endoscope, and to enhance the detection rate of polyp.

What is claimed is: 
     
         1 . A therapeutic apparatus for photodynamic therapy comprising:
 a tube that is inserted into a living body;   a light irradiation part that is installed to be movable into and out of the tube and irradiates light in a state of being discharged to the outside of the tube; and   an operating part that moves the light irradiation part to the inside and outside of the tube.   
     
     
         2 . The therapeutic apparatus for photodynamic therapy of  claim 1 , wherein a moving member movable inside the tube is connected to a rear end of the light irradiation part. 
     
     
         3 . The therapeutic apparatus for photodynamic therapy of  claim 2 , wherein the light irradiation part comprises a plurality of optical fiber bundles having leading ends radially unfolded while being discharged to the outside of the tube; and
 a fixing member in which a leading end is radially unfolded at both sides of the optical fiber bundle,   wherein the fixing member is elastically supported by an elastic member that provides an elastic force in a direction in which the optical fiber bundle is unfolded.   
     
     
         4 . A therapeutic apparatus for photodynamic therapy comprising:
 a hollow tube inserted into a living body;   an unfolding part that is coupled to one end of the tube and is unfolded;   alight irradiation part that is disposed in the unfolding part to irradiate light; and   an operating part that is coupled to the other end of the tube to unfold the unfolding part,   wherein the light irradiation part irradiates light when the unfolding part is unfolded,   wherein the unfolding part includes a plurality of unfolding frames that is inserted into the tube on one side and is coupled to a shaft disposed inside the tube; and   variable panels to which the other sides of the plurality of unfolding frames are coupled by being spaced apart from each other,   wherein an elongated hole is formed on one side of the unfolding frame coupled to both sides of the variable panel of the plurality of unfolding frames so as to be spaced apart from the shaft, and a sliding rod connected to the operating part is inserted into the elongated hole, thereby unfolding the variable panel of the unfolding part depending on the position of the sliding rod of the elongated hole.   
     
     
         5 . The therapeutic apparatus for photodynamic therapy of  claim 4 , wherein the elongated hole of the unfolding frame coupled to one side of the variable panel is formed in a direction facing the elongated hole of the unfolding frame coupled to the other side of the variable panel. 
     
     
         6 . The therapeutic apparatus for photodynamic therapy of  claim 4 , wherein on one side of the tube, a cylindrical cylinder to which the sliding load is coupled is inserted, and the cylinder is connected to the operating part. 
     
     
         7 . The therapeutic apparatus for photodynamic therapy of  claim 4 , wherein one end of the variable panel is formed in an arched shape or a straight line shape. 
     
     
         8 . The therapeutic apparatus for photodynamic therapy of  claim 4 , wherein the operating part comprises:
 a first knob coupled to the other end of the tube; and   a second knob which is pivotally coupled to the first knob and is connected to the slide rod.   
     
     
         9 . The therapeutic apparatus for photodynamic therapy of  claim 8 , wherein the light irradiation part is made up of a plurality of light sources coupled to the unfolding frame or the variable panel,
 a sensor configured to detect the rotation of the second knob or the contact of the first knob and the second knob is coupled to one side of the first knob or the second knob, thereby controlling the operation of the light source.   
     
     
         10 . The therapeutic apparatus for photodynamic therapy of  claim 4 , wherein the unfolding part is configured to include a plurality of unfolding frames which is inserted into the tube at one side to exert elasticity and is made up of an elastic member connected to the operating part; and
 variable panels coupled to the other side of each unfolding frame to be spaced apart from each other, and   the elastic members of each unfolding frame are configured to be mutually unfolded or to approach by operation of the operating part, thereby allowing the unfolding operation and the folding operation of the variable panel.