Prostate intracavity thermal therapy catheter

Abstract

The invention aims to provide a prostate intracavity thermal therapy catheter which can perform self-adaptive size adjustment on the heating balloon according to the inner diameter of the urethra of apatient. In order to achieve the purpose, the prostate intracavity thermal therapy catheter comprises a tube body, a positioning balloon and a thermal therapy balloon. A first balloon cavity channel,a backflow cavity channel and a wiring cavity channel are formed in the tube body. The positioning balloon is arranged on the outer side of the tube body and communicated with the first balloon cavity, and gas or liquid can be filled into the positioning balloon from the first balloon cavity. The thermal therapy balloon is arranged on the outer side of the catheter body, a thermal therapy assembly is arranged in the thermal therapy balloon, and wires connected to the thermal therapy assembly are arranged in the wiring cavity. The backflow cavity channel is communicated with the positioning balloon and the thermal therapy balloon, and inflated gas or liquid circulates between the positioning balloon and the thermal therapy balloon through the backflow cavity channel, so that pressure balance in the positioning balloon and the thermal therapy balloon is kept, and the thermal therapy balloon is inflated and expanded to a size suitable for being attached to the inner wall of the urethra.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a hyperthermia catheter in the prostate cavity. Background technique [0002] Prostatitis is a common and frequently-occurring disease in men. At present, the treatment of benign prostatic hyperplasia and prostatitis usually adopts intracavitary hyperthermia or oral drug therapy. Intracavity hyperthermia is to insert the hyperthermia catheter used for treatment into the patient's urethra to the bladder, position the hyperthermia capsule on the prostate, and use physical methods to heat the affected part. It gradually shrinks the hyperplasia and controls inflammation. This relieves and relieves the patient's symptoms and pain. [0003] The existing hyperthermia treatment method is to install a heating balloon at the affected part by inserting the patient's urethral catheter, inject a certain amount of normal saline into the inside of the heating balloon, and then heat the saline ...

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Problems solved by technology

[0004] However, the inventors have found that the degree of stricture of the urethra is different due to the difference in the degree of prostatic hyperplasia or inflammation, or the inner diameter of the urethral cavity is different due to the difference in the height or physiological structure of the patient. After surgery, patients with severe prostatic hyperplasia or inflammation and severe urethral stenosis often feel uncomfortable when the heating balloon is pressed. For patients with a relatively large urethral diameter, the heating balloon may not be able to adhere to the inner wall of the urethra. affect the therapeutic effect

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