Precision-controlled conduit restriction device

A device for providing controlled restriction of a hollow conduit in a body, the device comprising:

• a molded polymer band element having an integrally formed tunnel section with a proximal opening and a distal opening, a length of the band element extending from the proximal opening, a controller removably attached to the distal opening, comprising a mechanism for adjusting a diameter of a loop formed by the length of the band element, wherein an integral connector at a free end of the length of the band element is insertable through the proximal opening to form a loop around the hollow conduit, and wherein the integral connector is advanced through the tunnel section and into the controller to permanently engage with the mechanism for adjusting the diameter of the loop, a securing means to fix the loop diameter after adjustment, and a means to disconnect the controller from the band element after securing, leaving the band element and the securing means around the hollow conduit.