WAY OF EXTRACTION OF NEPHROSTOMIC DRAINAGE, EXTRACTOR FOR REALISATION OF WAY AND EXTRACTOR MODE OF OPERATION Russian patent published in 2009 - IPC A61M27/00 

FIELD: medicine.

SUBSTANCE: inventions concern medicine, urology and medical equipment. At extraction of nephrostomic drainage, a nephrostomic drainage tube curl is straightened. The tube is moved on a fistulous tract of an organism outside for limits of a fistulous tract. Thus before tube moving on its extremity a radiographic cone is put on. A radiographic cone on a tube is entered into a fistulous tract against the stop in a tube curl. Tube transposition is performed in radiographic cone. For nephrostomic drainage extraction realisation, in the channel of a radiographic cone with possibility of rotation and longitudinal moving the extractor is located. On one extremity of an extractor the handle of mainly round form is executed, and on other extremity of an extractor screw cutting is executed. Cutting includes an extreme first screw site and interfacing to it the second screw site. The radiographic cone is executed with an end face the rounded off form for sliding of a tube and with the handle placed on the extremity, mainly round form which has a flute under fingers of the operator on perimetre. The flute is located under the extractor handle. Extract is executed with d1<d2>dh<dt>db, where d1 - diametre of the first site of screw cutting of an extractor; d2 - diametre of the second site of screw cutting of an extractor; dh - diametre of the channel of the nephrostomic drainage tube; dt - diametre of the channel of a radiographic cone; db - external diametre of the nephrostomic drainage tube. At work with an extractor, at first the handle of a radiographic cone is connected to the handle of an extractor and fixed in this position. Rotation of the handle of an extractor together with the handle of a radiographic cone or separately from it is performed. Screw cutting of an extractor is screwed up in the tube channel of nephrostomic drainage. The handle of a radiographic cone is disconnected from the handle of an extractor and a radiographic cone is moved aside from the extractor handle on the nephrostomic drainage tube to depth of a fistulous course against the stop in the nephrostomic drainage tube curl. Then the radiographic cone is pressed to the tube curl of nephrostomic drainage and simultaneously with it the extractor handle is moved aside from the handle of the radiographic cone till the moment of its excision from a fistulous course of an organism.

EFFECT: reduction of time of operation of excision of a nephrostomic drainage tube, depression of expenses for excision of hard-to-remove nephrostomic drainages, exception of harmful influences on the patient from a tube friction about tissues of a fistulous course, reduction of influences of harmful factors of the x-ray control.

3 cl, 7 dwg