does not require an axial motion or movement to insert or withdraw said endoscopic instrument from said securing means preferably the at least one flange 230 defines a slit or window opening 235 allowing visualization of the surroundings through said opening by 139 endoscope vision lens or equivalent located on said endoscopic instrument 135 fig8 11 illustrate an alternate configuration of the adapter 320 which can provide easy and secure attachment of an endoscopic instrument device delivery features have again been removed for clarity similarly to the capabilities and performance properties illustrated in fig6 and 7 with regard to endoscopic size adaptation shown are the attachment adapter 320 for attaching devices to the distal end of an endoscopic instrument 135 the adapter comprising distal stop features 120 and 141 to limit the penetration of said endoscopic instrument 135 into the adapter and at least one flange 230 projecting proximally from said distal stop 120 said flange comprising at least one attachment point 323 for securing means 300 in the attachment adapter 320 the distal stop 120 may have a closed perimeter or alternatively the attachment adapter 320 may have a non closed perimeter embodiment together with the distal stop 141 as well as the previously described attachment adapter 320 where the securing means 300 are elastomeric as shown in detail in fig1 and fig1 the attachment flange in this embodiment features a combination of features and geometry with distinct properties which in total define a generally closed perimeter the adapter comprises the.