A variable bendable catheter (4) having a high ability to maintain a desired bend, comprising a catheter body (8) extending from a proximal end (12) to a distal end (16), wherein at least one The catheter body (8) includes a variable curved portion (28) at the distal end (16), the variable curved portion (28) at the distal end. Terminate at (32). Within the cavity (24), at least one puller wire (36) is accommodated, the puller wire (36) having an up branch (40), the puller wire (36) being a proximal end (12). ) To the distal end (16) and at least partially pass through the variable curved portion (28) to at least the first fork (44). A puller wire (36) extends from the first fork (44), passes at least partially through the variable bend portion (28), exits the variable bend portion (28), and then passes through the first fork (44). Re-engage with the upstream branch (40) to form a closed loop (48) that passes at least partially through the variable curved portion (28) and itself Is closed by the first fork (44). The puller wire (36) itself extends in the first fork (44) as a loop (48) and then extends along the descending branch (52) towards the proximal end (12). Yes. The downstream branch (52) slides relative to the upstream branch (40) inside the restraining means (64, 68, 72), the restraining means (64, 68, 72) being the first fork (44). And the restraining means (64, 68, 72) enables the sliding of the downstream branch (52) relative to the upstream branch (40). And along the variable bend portion (28), it securely closes the loop (48) through which the puller wire (36) passes. Instead, by applying traction to the up wire (40) and opening the down wire (52), the curvature is relaxed, thereby allowing the wire to be completely removed and the catheter lumen (24). Becomes free. The catheter (4) may include at least one flexible elongated elongated guide element (92) that is inside the cavity or lumen (24) of the catheter body (8). Slidably engageable and exits thr
