Patent ID: 8523899

Claim:
A treatment device for an endoscope comprising: a treatment part that is adapted to treat tissue within a body cavity; a manipulating part that is adapted to manipulate the treatment part; a manipulation shaft member that connects the treatment part and the manipulating part; a multi-wire coil sheath that is formed by spirally winding a single continuous wire bundle having a plurality of adjacent element wires arranged in a longitudinal direction into a series of adjacent bundle turns, wherein the manipulation shaft member is inserted into the multi-wire coil sheath so that the manipulation shaft member is capable of being advanced and retracted; and a plurality of discrete fixing portions that are formed by performing welding over a circumferential direction of the multi-wire coil sheath and that are arranged at intervals in a longitudinal direction of the multi-wire coil sheath and between a distal end and a proximal end of the multi-wire coil sheath and that restrict a first relative movement between the adjacent element wires located in each of the plurality of discrete fixing portions and a second relative movement among each of the series of adjacent bundle turns of the single continuous wire bundle that are adjacent to each other and are located in each of the plurality of discrete fixing portions.