Multi-cavity high-pressure water-bag posterior urethral expanding catheter for treating hyperplasia of prostate

Abstract

The present invention provides a posterior urethral expand crack duct with multi-cavity high pressure water bag for treating hyperplasia of prostate, which relates to medical appliance. The duct can expand crack to posterior urethral membrane, gland and capsule, bladder neck. The duck includes multi-cavity duct 1 with catheter cavity 2, water filling pipe cavity 3 and 4, flushing pipe cavity 5; high pressure water bag 6 with inner and outer bags on duct, and the inner high pressure water bag 8 is in the back of the outer high pressure water bag 7, shows equal diameter column shape integrally after expansion. The duct can efficient expand crack to posterior urethral membrane, gland and capsule, bladder neck, and the posterior urethral is in the state of low pressure, low resistance, and fluently, so relieves thoroughly the problems of urethral obstruction caused by hyperplasia of prostate. The inner and outer bags duct has better surface firm and hardness, and can get ideal expanding crack effect. The duct has convenient operation and high curing rate. The duct is suitable for mild, moderate and severe hyperplasia of prostate, is an ideal medical appliance with obvious effects by using minimal invasive therapy for treating hyperplasia of prostate without cutting gland.

Description

Technical field: [0001] The invention relates to a medical device, which refers to a multi-cavity high-pressure water bag posterior urethral dilatation catheter medical device for treating benign prostatic hyperplasia. Background technique: [0002] Prostatic hyperplasia is a frequent disease of elderly men, which afflicts them for the rest of their lives. The methods currently used to treat benign prostatic hyperplasia include: mild drug therapy; severe cases open surgical resection, or transurethral resection, gasification; and physical heat therapy such as microwave, radio frequency, laser, ultrasonic focus, etc., more thorough methods It is surgery, electrocution, and gasification, but it is inconvenient to implement for the frail, elderly, and those who are intolerant to surgery, and the surgery brings a lot of pain, many complications, and high risks. Other physical hyperthermia treatments have poor effects and are generally only suitable for mild hyperplasia. The in...

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Problems solved by technology

At the same time, the practice process has also proved that the A-type thick-front-thin-back-thin double-balloon catheter still has deficiencies: First, the expansion diameter of the posterior segment of the catheter at the expanded membrane is still relatively small, with a maximum expansion diameter of 3 cm. If the expansion is not in place, the long-term effect is that the membrane obstruction can be completely relieved. Second, although the gland that needs to be expanded is located in the double capsule part of the duct, it is located in the unequal diameter of the inner capsule and the outer capsule. In part, the single-layer thick-diameter outer capsule is easily deformed under pressure, so this part is basically equivalent to the expansion effect of a single-layer capsule, and the effect on the expansion of the gland is not ideal.

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