CANNULA WITH ADJUSTABLE CORNER FOR DELIVERING BONE FILLER

摘要

Disclosed is a cannula with an adjustable corner for delivering a bone filler, comprising a delivery pipe (10), a delivery handle (30) fixedly connected to the proximal end of the delivery pipe (10), a sheath-core (20) slidably inserted into the delivery pipe (10) and a sheath-core handle (40) fixedly connected to the proximal end of the sheath-core (20). The distal portion of the delivery pipe (10) is a flexible pipe (11) and the proximal portion thereof is a rigid pipe (12). The sheath-core (20) has a tubular cavity. The distal portion of the sheath-core (20) is a flexible segment (21) and the proximal portion thereof is a rigid segment (22). One or more filaments (23) are provided in the tubular cavity of the sheath-core (20), wherein the distal ends of the filaments (23) are fixedly connected to the distal end of the flexible segment (21) of the sheath-core (20) and the proximal ends thereof are connected to a draw gear arranged on the sheath-core handle (40) to drive the flexible segment (21) at the distal end of the sheath-core (20) to bend. The distal end of the cannula with an adjustable corner for delivering a bone filler can not only bend, but also the degree of bending thereof can be freely controlled by a doctor, making the bone filler distribution more uniform and being more conducive to the success of an operation.