Dilating hemostasis ostomy tube for minimally invasive percutaneous nephroscope

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a dilating hemostasis ostomy tube for a minimally invasive percutaneous nephroscope, which comprises a drainage catheter. An end of the drainage catheter is planar, and two drainage holes are arranged at positions, close to the end, of the drainage catheter; the drainage catheter is further provided with an elastic spherical fixing air sac and a non-elastic cylindrical hemostasis air sac, and after the hemostasis air sac is dilated, the diameter of a sectional circle ranges from 5mm to 12mm; the fixing air sac is communicated with a first channel parallel to the drainage catheter, and the hemostasis air sac is communicated with a second channel parallel to the drainage catheter; and both the first channel and the second channel are arranged in a wall of the drainage catheter, and the tail end of the first channel, the tail end of the second channel and the drainage catheter are bifurcated to form trifurcate branch pipes. Both the tail end of the first channel and the tail end of the second channel are provided with one-way valve inflating openings. The dilating hemostasis ostomy tube has the purpose that the structure of the ostomy tube for the percutaneous nephroscope is further improved, so that the problem that an existing nephrostomy tube is not ideal in hemostasis effect and easy to slip and shift is resolved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a dilated hemostatic fistula tube for minimally invasive percutaneous nephroscopy. Background technique [0002] Percutaneous nephroscopy is the most effective treatment method for minimally invasive treatment of kidney stones developed in recent years. It has the characteristics of good therapeutic effect, high stone clearance rate, less damage to renal function, less bleeding and less trauma. Percutaneous nephroscopy needs to puncture one or more channels in the renal cortex for surgery. After the operation, the nephrostomy tube plays the role of drainage of urine and compression of hemostasis. [0003] However, because the diameter of the nephrostomy tube must be smaller than the diameter of the puncture channel to be inserted into the kidney, there will be a certain gap between the nephrostomy channel and the nephrostomy tube, and the effect of the nephros...

AI Technical Summary

Problems solved by technology

[0007] Purpose of the present invention: In order to further improve the structure of the ostomy tube for percutaneous nephroscope, to solve the problems of unsatisfactory hemostatic effect and easy slippage and displacement of the existing nephrostomy tube, a minimally invasive percutaneous nephroscope is proposed. Dilated hemostatic fistula

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