Ureteral rapid liquid-gas expansion pipeline suite and using method thereof

Abstract

The invention relates to a ureteral rapid liquid-gas expansion pipeline suite and a using method thereof. The ureteral rapid liquid-gas expansion pipeline suite comprises a first ureteral catheter and a second ureteral catheter. The ureter is pre-expanded through the first ureteral catheter, the first ureteral catheter is not suitable for remaining in the ureter for a long time due to the fact that a pelvis drainage channel is removed from the first ureteral catheter, the problem that the pressure in the kidney of the working side is increased is solved, and therefore the first ureteral catheter is only prepared for short-time expansion and preliminary expansion of the ureter; and after the diameter of the ureter is increased, the second ureteral catheter can be more conveniently placed for long-time expansion, the expansion time is several hours or ten hours or longer, the ureteral expansion effect and safety are greatly improved, the placing success rate of the second ureteral catheter is increased, then the operation success rate of a flexible ureteroscope is increased, the process requirement and price of the flexible ureteroscope are reduced, the performance of the flexible ureteroscope is improved, the diameter of a water flow channel is increased, and the safety and effect of the flexible ureteroscope are rapidly improved.

Description

technical field [0001] The invention relates to the technical field of flexible ureteroscopic surgical treatment, in particular to a quick liquid-pneumatic expansion pipeline set for the ureter and a method for using the same. Background technique [0002] Compared with rigid ureteroscopes, flexible ureteroscopes have a flexible function, and can treat ureteral calculi and upper ureteral stones that travel up the ureter to the kidney during lithotripsy. More and more patients are treated with flexible ureteroscopes. For kidney stones with indications for surgical stone removal, percutaneous nephrolithotomy was the absolute mainstream for a long time before the development of flexible ureteroscopy technology and technology. Compared with percutaneous nephrolithotomy, flexible ureteroscopic lithotripsy does not require renal puncture, so there is no risk of puncture expansion and renal hemorrhage when the mirror body is moved during lithotripsy. With the improvement of flexib...

AI Technical Summary

Problems solved by technology

2) The narrow inner diameter of the ureter increases the technical requirements of the flexible ureteroscope, which increases the price of the flexible ureteroscope and is easily damaged. The direct consequence increases the cost of the technology and limits the development of the technology

3) The operating channel of the flexible ureteroscope is narrow, and the channel is occupied by the lithotripsy fiber during the lithotripsy process, resulting in various consequences caused by blocked water flow: kidney damage caused by increased pressure, retrograde infection, accidental injury caused by unclear vision, and reduced lithotripsy efficiency , extended operating time, limited total operating time, etc.

[0006] However, the device of this invention has two balloons and four channels, and its structure is rather complicated, which will increase its design and manufacturing process. At the same time, there may also be a problem that the success rate of the "kit" inserted into the ureter may decrease due to the diameter being too thick.

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