Prostatic dilation catheter with internal capsule shifted forwards

Abstract

The invention provides a prostatic dilation catheter with an internal capsule shifted forwards. A main catheter, an internal capsule and an external capsule are arranged. A urinary catheter, a flushing pipe, an internal capsule tube, an external capsule tube and a location protrusion are arranged in the main catheter. The main catheter is provided with an internal capsule water injection port and an external capsule water injection port. The internal capsule tube and the external capsule tube are connected with the internal capsule water injection port and the external capsule water injection port respectively. The front end of the main catheter is provided with a urine guide opening and a flushing opening. The external capsule is located between the flushing opening and the location protrusion, the internal capsule is located in the external capsule, and the tail end of the internal capsule and the tail end of the external capsule are arranged at intervals. The tail end of the internal capsule and the tail end of the external capsule are arranged at intervals, the main catheter can be placed at a preset position through the internal capsule and the location protrusion, so that the internal capsule can still slide in the prostate after water pre-infusion; when the internal capsule having undergone pre-infusion abuts against the external urethral sphincter, the un-expanded external capsule can be at an appropriate position, so that subsequently the external capsule can split a prostatic evacuating catheter from the external urethral sphincter to the position of the bladder conveniently, a better dilation is achieved, and the prostatic dilation accuracy is improved.

Description

technical field [0001] The invention relates to the field of medical equipment for dilatation of the prostate, in particular to a catheter for dilation of the prostate with an internal capsule moved forward. Background technique [0002] Prostatic hyperplasia (BPH) is a common benign lesion in elderly men. The incidence rate of patients over 60 years old accounts for 65%, and 25% of patients have clinical symptoms and need medical or surgical treatment. The effect of traditional transvesical prostatectomy or electric resection and laser surgery is certain, but the surgery has a greater impact on patients, and the elderly have relatively poor physical and psychological tolerance for surgery, so many elderly patients are afraid of surgery . Long-term maintenance by catheterization, or even suprapubic cystostomy to solve dysuria. The quality of life is extremely poor. Using posterior urethral dilatation to treat benign prostatic hyperplasia is a method that the medical comm...

AI Technical Summary

Problems solved by technology

[0006] For the first type of prostatic dilatation catheter, since the outer capsule is located in the bladder, when the internal pressure is inflated, the internal slip is not easy to control, and the expansion effect is unstable

For the second type of prostate dilation catheter, due to the addition of a positioning convex, it is convenient to locate the catheter during the operation, but due to the different weights of the patients, for obese patients, the doctor can not be better during the operation. Sensing the positioning convex, which makes the positioning of the catheter difficult

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