Dilation and drainage integrated device for urinary surgery

Abstract

The invention discloses a urinary surgery dilatation and drainage integrated device which is characterized in that dilatation and drainage are integrated by adopting a transurethral approach, and the dilatation and drainage integrated device is placed at a ureteral stenosis section to treat benign ureteral stenosis; the dilation and drainage integrated device comprises a catheter serving as a main support, a linkage structure, a traction structure, a first arc-shaped dilation block, a second arc-shaped dilation block and a polygonal sliding groove, wherein the linkage structure and the traction structure can be driven and abut step by step, the first arc-shaped dilation block and the second arc-shaped dilation block can expand the diameter, and the polygonal sliding groove is used for sliding at a constant speed. According to the urinary surgery dilation and drainage integrated device, self-control secretion lubrication is achieved, the cost is low, the pain of a patient is small, staged gradual dilation is achieved, meanwhile, the device can be locally dilated to the needed size and dilated to the needed size and position in a targeted mode, urethra damage in the dilation process is reduced, and the dilation and drainage integrated device is suitable for being used in the urinary surgery. Pain caused by replacement of urethral dilators of different sizes is avoided, abutting is uniform, damage to the narrow section of the ureter is avoided, and uniform dilation is achieved.

Description

technical field [0001] The invention relates to the field of urology, in particular to an integrated expansion and drainage device for urology. Background technique [0002] Benign ureteral stricture (BUS) refers to partial and full stenosis of the ureteral lumen caused by inflammatory reverse tip, surgical scar, injury, etc., often accompanied by varying degrees of upper urinary tract obstruction and hydronephrosis. The onset of BUS is slow, and the appearance and severity of clinical symptoms such as low back pain and waist distention depend on the degree of ureteral stenosis. Clinically, surgery is mainly used to treat BUS, restore the continuity of ureteral lumen, relieve obstruction, unobstructed drainage, and improve renal function; When the ureteral orifice is introduced, patients often have a fearful state of mind due to the low lubrication of the catheter entering the ureter. At the same time, the existing operation method for opening the ureter is single. Due to ...

AI Technical Summary

Problems solved by technology

Because when the ureteral orifice is introduced, patients often feel fearful because the catheter enters the ureter with low lubrication. At the same time, the existing operation method for opening the ureter is single. Due to the limited size of the ureter, the existing expansion tool will expand the expansion force. Directly applied to the inside of the ureter, the pressure on the surface of the ureter is relatively large, which will easily lead to insufficient expansion or excessive damage after expansion, and problems such as inner wall bleeding. It is impossible to achieve local targeted pressure during expansion, and it is necessary to replace different types of ureters. The treatment device can increase the postoperative pain of the patient. The invention can self-control the secretion of lubrication, the cost is low, the patient suffers less, and the gradual expansion is graded. At the same time, it can be targeted and locally expanded to the required size. For this reason, we propose a urological expansion Drainage integrated device

Images