Self-guiding and self-lubricating catheter

Abstract

The invention discloses a self-guiding and self-lubricating catheter, and belongs to the field of catheters. The self-guiding and self-lubricating catheter is characterized in that gas is guided into an extension trachea to push a three-section type hose to slide into the catheter along the urethra, meanwhile, in the unfolding and stretching process of the three-section type hose, a sterile lubricant in the three-section type hose overflows under the action of pressure of the sterile lubricant to synchronously lubricate the urethra of a patient, the three-section type hose has flexibility in the urethra and is not prone to causing damage to the urethra, meanwhile, under the combined action of the lubricating effect and the gas thrust, the three-section type hose breaks through urethral resistance and gradually slides into the urethra, the guiding efficiency of the self-guiding and self-lubricating catheter in the urethra is improved, meanwhile, the discomfort of the patient is effectively reduced, and the situation that the catheter is too hard to damage the urethra of the patient or is too soft to be inserted into the urethra in the prior art is effectively reduced.

Description

technical field [0001] The invention relates to the field of urinary catheters, in particular to a self-guiding and self-lubricating urinary catheter. Background technique [0002] A urinary catheter is a tube that is inserted from the urethra into the bladder to drain urine. In the bladder, it is not easy to prolapse, and the drainage tube is connected to the urine bag to collect urine. [0003] Urinary catheters are generally made of PVC catheters, raw rubber catheters, silicone rubber catheters, natural latex catheters, etc. PVC catheters and raw rubber catheters are harder, but they are harmful to the human body. There is no harm to the human body, but it is not easy to insert into the bladder, especially for some elderly male patients, because of the hypertrophy of the prostate and serious urethral blockage, it is difficult to insert the soft catheter into the bladder, which affects the operation time and causes more pain to the patient. pain. [0004] Therefore, it ...

AI Technical Summary

Problems solved by technology

[0003] Urinary catheters are generally made of PVC catheters, raw rubber catheters, silicone rubber catheters, natural latex catheters, etc. PVC catheters and raw rubber catheters are harder, but they are harmful to the human body. There is no harm to the human body, but it is not easy to insert into the bladder, especially for some elderly male patients, because of the hypertrophy of the prostate and serious urethral blockage, it is difficult to insert the soft catheter into the bladder, which affects the operation time and causes more pain to the patient. pain

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