Endoscope cap, endoscope and method of manufacturing endoscope cap

Abstract

Provided is an endoscope cap or the like with an elevator which is easily attached to and detached from the distal end of an endoscope. An endoscope cap attachable to and detachable from an endoscope including a lever pivotally provided at a distal end of an insertion part of an endoscope and a pivot part causing the lever to pivot comprises: a cylindrical cover; and an elevator which is pivotally supported at the inside of the cover, is connected to the lever when the endoscope is attached to the cover, and pivots in response to pivoting of the lever.

What is claimed is: 
     
         1 - 23 . (canceled) 
     
     
         24 . An endoscope cap attachable to and detachable from an endoscope including a lever pivotally provided at a distal end of an insertion part of an endoscope and a pivot part causing the lever to pivot, comprising:
 a bottomed cylindrical cover having an opening end which is attachable to and detachable from a distal end of the insertion part of the endoscope;   a pedestal fixed to an inside of the cover and having an elevator attachment hole; and   an elevator located inside the cover and having an elevator shaft inserted into the elevator attachment hole, an elevating part protruding in a direction intersecting the elevator shaft, and a connection concave part opened at the opening end side of the elevator and connected to the lever, the elevator being pivotable around the elevator shaft with respect to the pedestal.   
     
     
         25 . The endoscope cap according to  claim 24 , wherein the cover has, at an edge of a contact part with the pedestal, a first fixing projection protruding toward the pedestal. 
     
     
         26 . The endoscope cap according to  claim 24 , wherein
 the cover includes, at an inner side surface, a second fixing projection having an L shape protruding toward the opening end, and   the pedestal includes a third fixing projection having an L shape opposed to the second fixing projection and protruding toward a bottom of the cover.   
     
     
         27 . The endoscope cap according to  claim 24 , wherein
 the cover includes a pedestal fixing hole at the bottom, and   the pedestal includes a fourth fixing projection inserted into the pedestal fixing hole.   
     
     
         28 . The endoscope cap according to  claim 24 , wherein the pedestal is integrally formed with the cover. 
     
     
         29 . The endoscope cap according to  claim 24 , wherein the cover includes, at an inner surface, an attachment projection formed in a line along the opening end. 
     
     
         30 . The endoscope cap according to  claim 24 , wherein
 the cover has a window part opened at a side surface, and   the elevator is pivotable in a direction of changing a distance between the elevator and the window part.   
     
     
         31 . An endoscope cap attachable to and detachable from an endoscope including a lever pivotally provided at a distal end of an insertion part of an endoscope and a pivot part causing the lever to pivot, comprising:
 a bottomed cylindrical cover having an opening end which is attachable to and detachable from a distal end of an insertion part of the endoscope;   a pedestal fixed to the inside of the cover and having an elevator attachment hole; and   an elevator located inside the cover and having an elevator shaft inserted into the elevator attachment hole, an elevating part protruding in a direction intersecting the elevator shaft, and an elevator projection protruding at the opening end side of the elevator and connected to the lever, the elevator being pivotable around the elevator shaft with respect to the pedestal.   
     
     
         32 . The endoscope cap according to  claim 31 , wherein the cover has, at an edge of a contact part with the pedestal, a first fixing projection protruding toward the pedestal. 
     
     
         33 . The endoscope cap according to  claim 31 , wherein
 the cover includes, at an inner side surface, a second fixing projection having an L shape protruding toward the opening end, and   the pedestal includes a third fixing projection having an L shape opposed to the second fixing projection and protruding toward a bottom of the cover.   
     
     
         34 . The endoscope cap according to  claim 31 , wherein
 the cover includes a pedestal fixing hole at the bottom, and   the pedestal includes a fourth fixing projection inserted into the pedestal fixing hole.   
     
     
         35 . The endoscope cap according to  claim 31 , wherein the pedestal is integrally formed with the cover. 
     
     
         36 . The endoscope cap according to  claim 31 , wherein the cover includes, at an inner surface, an attachment projection formed in a line along the opening end. 
     
     
         37 . The endoscope cap according to  claim 31 , wherein
 the cover has a window part opened at a side surface, and   the elevator is pivotable in a direction of changing a distance between the elevator and the window part.   
     
     
         38 . (canceled) 
     
     
         39 . (canceled) 
     
     
         40 . An endoscope, comprising:
 a hollow lever chamber protruding from a part of a distal end of an insertion part in an insertion direction and including a support wall along the insertion direction;   a pivot part operated remotely from an outside of the lever chamber; and   a lever including a lever shaft penetrating the support wall, a pivot connection part located contiguous to the lever shaft, accommodated in the lever chamber and connected to the pivot part, and an elevator projection protruding in a direction intersecting the lever shaft outside the lever chamber and exposed to a surface, the lever being pivotable around the lever shaft.   
     
     
         41 . The endoscope according to  claim 40 , comprising an endoscope cap including: a bottomed cylindrical cover having an opening end which is attachable to and detachable from a distal end of an insertion part of the endoscope; a pedestal fixed to an inside of the cover and having an elevator attachment hole; and an elevator located inside the cover and having an elevator shaft inserted into the elevator attachment hole, an elevating part protruding in a direction intersecting the elevator shaft, and a connection concave part opened at the opening end side of the elevating part, the elevator being pivotable around the elevator shaft with respect to the pedestal, wherein
 in a case where the opening end is attached to the distal end of the insertion part,   the elevator projection is located in the connection concave part, and   the elevator shaft is disposed coaxially with the lever shaft.   
     
     
         42 . The endoscope according to  claim 41 , wherein
 the elevator projection has a planar part at a side surface, and   the connection concave part has a planar part at a portion corresponding to the planar part.   
     
     
         43 . The endoscope according to  claim 41 , wherein
 the elevator projection has a side surface concave part at a side surface, and   the connection concave part has, at an inner surface, an inner surface convex part corresponding to the side surface concave part.   
     
     
         44 . The endoscope according to  claim 40 , wherein the pivot connection part protrudes in a direction intersecting the lever shaft. 
     
     
         45 . The endoscope according to  claim 40 , wherein the pivot part is an elevating wire penetrating the insertion part. 
     
     
         46 - 56 . (canceled)