Painless urethral dilator

Abstract

The invention relates to the technical field of urethral dilation, in particular to a painless urethral dilator. The painless urethral dilator comprises a urethral dilation tube and a supporting and pain relieving mechanism arranged at the end of the urethral dilation tube, wherein a guide wire channel is formed in the center in the urethral dilation tube, a cavity is formed in an inner layer of the urethral dilation tube, the supporting and pain relieving mechanism at least comprises a connecting tube and a limiting device, the end part of the connecting tube is connected with the end part of the urethral dilation tube, a communicating tube is arranged at the center of the connecting tube, the interior of the communicating tube communicates with the guide wire channel, a transfusion chamber is formed in an inner layer of the connecting tube and is located at the outer side of the communicating tube, the interior of the transfusion chamber communicates with the interior of the cavity, a water storage tank is arranged on the outer wall, close to the end part, of the connecting pipe, an electric heating net is arranged at the bottom of an inner cavity of the water storage tank, the outer wall of the water storage tank communicates with a water injection opening, the outer wall of the water storage tank communicates with a transfusion tube, and the end part of the transfusion tube communicates with the interior of the transfusion chamber. According to the painless urethral dilator, heating can be conducted before urethral dilation, the warm urethral dilation tube can enter a urethra more comfortably, and the pain feeling is relieved.

Description

technical field [0001] The invention relates to the technical field of urethral dilation, in particular to a painless urethral dilator. Background technique [0002] Urethral stricture refers to the abnormal narrowing of the mechanical lumen at any part of the urethra, which increases the internal resistance of the urethra. There are three types of traumatic urethral strictures. The hypertrophic fibrous tissue replaces the normal urethral spongy body to form a scar, which makes the urethra and its surrounding tissues contract, resulting in urethral stricture. Urethral dilators are often used to dilate the urethra, and then pass through the urethra. The rendezvous technique uses a urethral dilator to lead out the urinary catheter from the bladder. However, when the current urethral dilator is in use, it is placed outside for a long time and is affected by the external temperature, so that the urethral dilator enters the patient's urethra relatively coldly. It is easy to caus...

AI Technical Summary

Problems solved by technology

[0002] Urethral stricture refers to the abnormal narrowing of the mechanical lumen at any part of the urethra, which increases the internal resistance of the urethra. There are three types of traumatic urethral strictures. The hypertrophic fibrous tissue replaces the normal urethral spongy body to form a scar, which makes the urethra and its surrounding tissues contract, resulting in urethral stricture. Urethral dilators are often used to dilate the urethra, and then pass through the urethra. The rendezvous technique uses a urethral dilator to lead out the urinary catheter from the bladder. However, when the current urethral dilator is in use, it is placed outside for a long time and is affected by the external temperature, so that the urethral dilator enters the patient's urethra relatively coldly. It is easy to cause discomfort and severe pain to the patient, and the current urethral dilator cannot be stably fixed during use, which may easily cause the urethral dilator to detach from the urethra and need to be reinserted into the urethra, which may cause secondary injury to the patient. In view of this, we propose A painless urethral dilator

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