A clamp apparatus 1600 comprising: a body 1602； first and second handles 1603, 1604, each operatively coupled tothe body 1602；a first gear set 1607 operatively coupled to the first handle 1603 and a second gear set 1608 operatively coupled to the second handle 1604, wherein the first gear set 1603 is configured to operatively engage the second gear set 1608；first and second movable grippers 1605, 1606 each operatively coupled to the body 1602； a third gear set 1627operatively coupled to the first movable gripper 1605 and a fourth gear set 1628 operatively coupled to the second movable gripper 1606, wherein the third gear set 1627 operatively engages the fourth gear set 1628； and at least one bias member 1610 configured to operatively engage with the third gear set 1627 and the fourth gear set 1628,wherein the at least one bias member 1610 is configured to urge the first movable gripper 1605 and the second movable gripper 1606 toward a clamped position.
