System for intra-abdominally moving an organ
A surgical tissue connector system for moving a first internal body tissue to a position away from a second internal body tissue and then holding the first internal body tissue in the position. Tissue connectors are secured to cords such that the length of cord between the tissue connectors can be easily adjusted in a laparoscopic work space.
1. A surgical tissue connector system for moving a first internal body tissue to a position away from a second internal body tissue and then holding the first internal body tissue in the position away from the second internal body tissue, said tissue connector system comprising:
a first tissue connector that is connectable to body tissue;
a second tissue connector that is connectable to body tissue;
a base comprising a first end secured to the first tissue connector, a second end, a bore extending within the base;
a rod extending through the bore of the base;
a lock slidably disposed within the bore of the base from a first position to a second position;
a cord extending from the second tissue connector to the base secured to the first tissue connector, said cord characterized by a first portion extending from the rod and out of the base at the second end, a second portion extending from the rod and out of the base at the second end, and an intermediate portion comprising a sliding knot wrapped around and engaging the rod;
an actuator connected to the lock, and operable to move the lock within the bore of the base;
wherein, with the lock in the first position, the knot is disposed on a first side of the bore opposite, relative to the rod, an impinging structure of the lock, and is free to slide in a first direction away from the impinging structure when the cord first portion is pulled, and the knot is prevented from sliding in a second direction toward the impinging structure when the cord second portion is pulled; and
wherein, with the lock in the second position, the knot is disposed on a second side of the bore, relative to the rod, and on the same side of the bore as the impinging structure of the lock, and the knot is free to slide in a second direction away from the impinging structure when the cord second portion is pulled, and the knot is inhibited from sliding in the first direction toward the impinging structure when the cord first portion is pulled.
2. The system of claim 1 , further comprising:
a biasing spring operable to apply biasing force to the lock to bias the lock toward the base second end and thereby urge the impinging structure into contact with the knot.
3. The system of claim 2 , wherein the biasing force of the spring is not sufficient to hold the knot on the second side of the bore when the cord first portion is pulled in the first direction.
4. The system of claim 2 , wherein with the lock in the second position and the sliding knot on the second side of the bore, the sliding knot is locked and prevented from being pulled in the first direction through the bore.
5. The system of claim 1 , wherein:
the lock has a cylindrical exterior surface and slidably engages an interior surface of the base.
6. The system of claim 1 , wherein:
the base is cylindrical, and the actuator comprises a cylindrical sleeve that surrounds the base.