Variably controllable instrument

An apparatus, comprising:

• a first axis extending axially along an axial direction (Z);
• a second axis extending transversely along a first transverse direction (X), X being substantially perpendicular to Z;
• a third axis extending transversely along a second transverse direction (Y), Y being substantially perpendicular to X, Y further being substantially perpendicular to Z;
• a first modified origami-type structure comprising:
• a first anterior end at a first axial location (+Z), the first anterior end comprising:
• a substantially flat first anterior surface comprising:
• a first anterior major axis along X;
• and
• a first anterior minor axis along Y;
• a first hole at a location +X on the first anterior surface, the first hole extending axially through the first modified origami-type structure;
• and
• a second hole at a location −X on the first anterior surface, the second hole extending axially through the first modified origami-type structure;
• and
• a first posterior end at a second axial location (−Z), the first posterior end comprising:
• a substantially flat first posterior surface comprising:
• a first posterior major axis along Y;
• and
• a first posterior minor axis along X;
• a third hole at a location +Y on the first posterior surface, the third hole extending axially through the first modified origami-type structure;
• and
• a fourth hole at location −Y on the first posterior surface, the fourth hole extending axially through the first modified origami-type structure;
• a second modified origami-type structure comprising:
• a second anterior end at the second axial location, the second anterior end adapted to contact the first posterior end, the second anterior end comprising:
• a substantially flat second anterior surface adapted to contact the first posterior surface, the second anterior surface being in alignment with the first posterior surface, the second anterior surface comprising:
• a second anterior major axis along Y;
• and
• a second anterior minor axis along X;
• a fifth hole at a location +Y on the second anterior surface, the fifth hole extending axially through the second modified origami-type structure;
• and
• a sixth hole at a location −Y on the second anterior surface, the sixth hole extending axially through the second modified origami-type structure;
• and
• a second posterior end located at a third axial location, the second posterior end comprising:
• a substantially flat second posterior surface comprising:
• a second posterior major axis along X;
• and
• a second posterior minor axis along Y;
• a seventh hole at a location +X on the first posterior surface, the seventh hole extending axially through the second modified origami-type structure;
• and
• a eighth hole at location −X on the first posterior surface, the eighth hole extending axially through the second modified origami-type structure;
• a third modified origami-type structure comprising:
• a third anterior end at the third axial location, the third anterior end adapted to contact the second posterior end, the third anterior end comprising:
• a substantially flat third anterior surface adapted to contact the second posterior surface, the third anterior surface being in alignment with the second posterior surface, the third anterior surface comprising:
• a third anterior major axis along X;
• and
• a third anterior minor axis along Y;
• a ninth hole at a location +X on the third anterior surface, the ninth hole extending axially through the third modified origami-type structure;
• and
• a tenth hole at a location −X on the third anterior surface, the ninth hole extending axially through the third modified origami-type structure;
• and
• a third posterior end located at a fourth axial location, the third posterior end comprising:
• a substantially flat third posterior surface comprising:
• a third posterior major axis along Y;
• and
• a third posterior minor axis along X;
• a eleventh hole at a location +Y on the third posterior surface, the eleventh hole extending axially through the third modified origami-type structure;
• and
• a twelfth hole at location −Y on the third posterior surface, the twelfth hole extending axially through the third modified origami-type structure;
• a first cord threaded through the first hole, the first cord further being threaded through the fifth hole, the first cord further being threaded through the ninth hole;
• a second cord threaded through the second hole, the first cord further being threaded through the sixth hole, the first cord further being threaded through the tenth hole;
• a third cord threaded through the third hole, the first cord further being threaded through the seventh hole, the first cord further being threaded through the eleventh hole;
• and
• a fourth cord threaded through the fourth hole, the first cord further being threaded through the eighth hole, the first cord further being threaded through the twelfth hole.