A negative pressure regulating device connected with ureteral sheath
A technology of adjusting device and ureter, applied in the field of medical devices, can solve the problems of affecting development, high incidence of urinary-induced infection, and high pressure of renal collecting system, and achieve the effects of removing stones, shortening operation time, and improving clarity
Active Publication Date: 2017-04-05
周均洪
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Problems solved by technology
But even so, for kidney stones no larger than 2cm, it is still easy to have high pressure in the renal collecting system with this surgical method, resulting in a high incidence of urinary infection, which affects the development of this surgical method
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[0016] refer to figure 1 , figure 2 , the negative pressure regulating device of the present invention includes a sealed connection head 9 connected to the end of the ureteral sheath 7, the inside of the sealed connection head 9 is hollow to form a cavity 5, and a connection port 1 communicating with the ureteral sheath 7 is opened on it, connected to the negative pressure suction The negative pressure inlet 2 of the device 6, the mirror body inlet 3 for the penetration of the ureteroscope 8, and the air inlet 41 installed with the air intake regulating valve 4, the mirror body inlet 3 is provided with a sealing cover, and the sealing cover is provided with There is an elastic sealing hole 33 sealingly engaged with the outer wall of the tubular portion 81 of the ureteroscope 8 .
[0017] As a preferred embodiment of the present invention, refer to image 3 The sealing cover includes an elastic thin glue 31 and a pressing cover 32, the elastic sealing hole 33 is located on t...
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A negative pressure adjusting device connected with a ureter sheath, comprising a sealing connector (9) connected with the end of the ureter sheath (7); the interior of the sealing connector (9) is hollow and a hollow cavity (5) is formed therein; a connecting port (1) communicated with the ureter sheath (7), a negative pressure access port (2) connected with a negative pressure suction device (6), an ureteroscope body access port (3) allowing an ureteroscope (8) to penetrate therein, and an air intake (41) provided with an air intake adjusting valve (4) are arranged on the sealing connector (9); the air intake adjusting valve (4) adjusts the negative pressure inside the hollow cavity (5) by changing the size of an airflow channel between the hollow cavity (5) and atmosphere; a sealing cover is arranged at the ureteroscope body access port (3), and an elastic sealing hole (33) mated with a tubular outer wall of the ureteroscope (8) in a sealing mode is arranged on the sealing cover; so that liquid injected into a renal collecting system via the ureteroscope (8) can be rapidly sucked out, the pressure of the renal collecting system is effectively controlled, harms to the patient caused by high pressure of the renal collecting system are avoided, and meanwhile, calculus powder and disintegrated calculus generated during operation can be rapidly sucked out, which makes operative field clearer, improves operation efficiency, brings shorter operation time, and improves operation safety remarkably.
Description
technical field [0001] The invention relates to a medical device, in particular to a negative pressure regulating device connected with a ureteral sheath. Background technique [0002] With the improvement of living standards, people's daily diet structure is also changing, and the number of patients with upper urinary tract stones is increasing year by year, especially those with kidney stones. At present, the mainstream surgical treatment methods include lithotripsy through natural channels (i.e. urethra, bladder, ureter) as the surgical path and percutaneous nephrostomy and other unnatural channels. In recent years, the medical field has gradually advocated the use of natural passages (ie, urethra, bladder, ureter) as the surgical approach for kidney stone surgery. [0003] When performing nephrolithiasis surgery through the natural channel, a ureteric sheath should be placed as the surgical channel through the natural channel, so that the ureteroscope can quickly enter ...
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IPC IPC(8): A61B18/26A61M1/00
CPCA61B18/26
Inventor 周均洪
Owner 周均洪