Percutaneous nephroscope puncture sheath capable of regulating and controlling intrarenal pressure

Abstract

The invention discloses a percutaneous nephroscope puncture sheath capable of regulating and controlling intrarenal pressure. The percutaneous nephroscope puncture sheath comprises a sheath tube, a grip, a liquid tube, a flushing suction pump, a flushing fluid bag, a controller, a transmission line and a piezoelectric film sensor. The piezoelectric film sensor is arranged in an interlayer of a sheath body of the puncture sheath, and is used for monitoring intrarenal pressure, a monitoring result is fed back to a controller in real time, the controller controls work of a negative pressure suction pump, and the intrarenal pressure is maintained within a standard range by pumping out water in the kidney, reducing the intrarenal pressure or injecting water into the kidney.

Description

technical field [0001] The invention belongs to the technical apparatus field of percutaneous nephrolithotomy, and in particular relates to a percutaneous nephroscopic puncture sheath capable of regulating intrarenal pressure. Background technique [0002] Percutaneous nephrolithotomy is to establish a channel from the skin to the kidney in the waist, insert the nephroscope into the kidney through this channel, and use laser, ultrasound and other lithotripsy tools to crush and remove the kidney stones; percutaneous nephrolithotomy It is necessary to inject water into the kidney, establish artificial hydronephrosis, and maintain a certain intrarenal pressure. The purpose is to maintain a clear surgical field of view, fully expose the surgical field, and flush out stones; And there is no water outlet channel to discharge, so the excess water can only enter the bladder through the ureter, and then drain out of the body through the catheter, or the tissue penetrates into the bod...

AI Technical Summary

Problems solved by technology

[0002] Percutaneous nephrolithotomy is to establish a channel from the skin to the kidney in the waist, insert the nephroscope into the kidney through this channel, and use laser, ultrasound and other lithotripsy tools to crush and remove the kidney stones; percutaneous nephrolithotomy It is necessary to inject water into the kidney, establish artificial hydronephrosis, and maintain a certain intrarenal pressure. The purpose is to maintain a clear surgical field of view, fully expose the surgical field, and flush out stones; And there is no water outlet channel to discharge, so the excess water can only enter the bladder through the ureter, and then drain out of the body through the catheter, or the tissue penetrates into the body circulation, or infiltrates around the kidneys; a lot of water is often drained from the bladder after surgery. Flushing fluid, which proves that there is too much water injected during the operation, and the intrarenal pressure may continue to be in a high state. If the intrarenal pressure continues to be too high during the operation, causing reflux or leakage, it is very likely to cause such as sepsis , septic shock and other serious complications; and if the intrarenal pressure is too low during the operation, it may cause unclear vision and affect the operation;

[0003] Therefore, how to maintain the intrarenal pressure within a reasonable standard range during the operation, and monitor the changes in the intrarenal pressure in real time during the operation, and make timely adjustments; there is currently no technical solution to achieve real-time monitoring of the intrarenal pressure during percutaneous nephrolithotomy. The intrarenal pressure is adjusted by monitoring the value to maintain the intrarenal pressure within the set standard range; and the existing intrarenal water injection channels are injected from the established ureteroscope, and there is no special drainage channel, which is from the kidney to the ureter through the ureter. The bladder is drained from the urinary catheter, and the passage in the body is longer, resulting in more fluid retention, resulting in long-term high pressure in the kidney, and a large number of bacteria entering the flushing fluid during the lithotripsy process, and then entering the body circulation through high pressure, which will inevitably cause bacteremia Syndrome, sepsis, and even septic shock, threatening the patient's life

Images