Percutaneous nephrolithotripsy calculus removing method and system

Abstract

The invention relates to a percutaneous nephrolithotripsy calculus removing method and system. A perfusion channel is adopted to connect a water inlet valve of the side face of an outer sheath with a perfusion suction source, and the far end of the outer sheath is placed in the kidney; an inner sheath is connected with a suction valve body, and a suction channel is adopted to connect the suction valve body with the perfusion suction source; the perfusion suction source is started, perfusion liquid goes through the perfusion channel, the water inlet valve on the side face of the outer sheath, an interlayer channel between the inner sheath and the outer sheath, a water outlet hole at the far end of the outer sheath in sequence and is injected into the kidney, the perfusion liquid in the kidney goes through an internal channel in the inner sheath, a calculus removing channel of the suction valve body and the suction channel in sequence and is discharged out of the body, and continuous circulation of the perfusion liquid in the kidney is established; an endoscope is inserted into an inner valve body channel in the suction valve body, and enters the kidney through the internal channel of the inner sheath to conduct calculus breaking operation, calculi are discharged out of the body along with the perfusion liquid through the internal channel in the inner sheath, the calculus discharging channel of the suction valve body and the suction channel.

Description

technical field [0001] The invention relates to a percutaneous nephroscopic calculus removal system and method. [0002] technical background [0003] At present, percutaneous nephrostomy lithotripsy is mostly used in the treatment of kidney stones in urology. During the operation, it is necessary to combine perfusion and suction while operating instruments. However, the existing method for percutaneous nephrostomy lithotripsy uses a single sheath, and the perfusion and suction are performed intermittently and alternately. It is difficult to ensure a continuous and clear view, and it takes time to wait, which has a certain impact on the efficiency of lithotripsy ; and the pressure in the renal pelvis is too high during the lithotripsy process, which is prone to retrograde infection, leading to complications such as sepsis and septicemia. [0004] Therefore, in percutaneous nephrostomy lithotripsy, a technical solution that can keep the field of view continuously clear, impro...

AI Technical Summary

Problems solved by technology

However, the existing method for percutaneous nephrostomy lithotripsy uses a single sheath, and the perfusion and suction are performed intermittently and alternately. It is difficult to ensure a continuous and clear view, and it takes time to wait, which has a certain impact on the efficiency of lithotripsy ; and the pressure in the renal pelvis is too high during the lithotripsy process, which is prone to retrograde infection, leading to complications such as sepsis and sepsis

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