Urethral catheterization product structure

Abstract

The invention provides a urethral catheterization product structure. The urethral catheterization product structure comprises an outer sheath, a balloon and an inner core, wherein an air injection channel and an inner core channel are formed in the outer sheath, a urine inlet and a urine outlet communicating with the inner core channel are also formed in the far end and the near end of the outer sheath respectively, the urine inlet is in a blunt head shape, and the inner core is further provided with a guide end. In an initial state, the inner core is arranged in the inner core channel in a penetrating manner, the guide end extends out of the inner core channel to be exposed out of the outer sheath, so that the guide end is used to guide the far end of the outer sheath to enter a urinary bladder via the urethra of a patient, the balloon is in an expansion state to be positioned in the urinary bladder, then, the inner core is dismounted from the inner core channel, and the exposed urineinlet, the inner core channel and the urine outlet form a channel to discharge urine in the urinary bladder. Therefore, the urethral catheterization product structure can reduce irritation to urinarybladder mucosae and urethra mucosae, thereby improving the use comfort.

Description

technical field [0001] The embodiment of the present application relates to the technical field of medical devices, in particular to a structure of a catheterization product for leading out urine in the bladder. Background technique [0002] At present, the catheter widely used in clinical medicine is the Foley catheter invented in the 1930s. Compared with the previous catheters, this type of catheter has the advantages of softness, elasticity, easy fixing, and waterproof, so it is still in use today. However, the current Foley catheter also has obvious defects, and the complications caused by these defects are also widespread in clinical practice. [0003] For example, in the United States in 2002, the number of visits to doctors simply because of the problem of Foley catheters was as high as 7 million, and the direct and indirect losses were as high as 1.6 billion US dollars. In addition, there were many incalculable pains caused to patients. These complications include c...

AI Technical Summary

Problems solved by technology

[0004] Through the structural analysis of the Foley catheter, it will be found that the above-mentioned problems are mainly caused by the structural design defect of the Foley catheter itself, which mainly includes the following aspects: the protruding part (ie, the guide end) of the bladder end of the catheter When the patient is empty or when the patient changes position, it is easy to poke the bladder wall of the patient, thereby inducing bladder spasm or urinary tract irritation symptoms, and repeatedly poking the bladder wall is easy to damage the epithelial protective structure of the bladder, resulting in urinary tract infection ; (2) The spherical balloon structure at the bladder end of the urinary catheter and the relative position of the drainage outlet make it possible for a small amount of urine to accumulate between the urinary catheter balloon and the bladder wall when the urinary catheter is completely emptied. Stagnant water, which is also an important factor inducing urinary tract infection; (3) Although the rubber structure of the urinary catheter has a certain degree of flexibility, due to its hard texture, the direct mechanical stimulation of the urethral mucosa in the urinary catheter is relatively difficult. Severe, causing the patient to experience obvious discomfort

[0005] In response to the above problems, although some urinary catheter structures have been improved, there is no urinary catheter structure that systematically solves the urinary tract irritation symptoms of patients.

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