Two-half type visual dilator special for peritoneal dialysis catheter

Abstract

The invention provides a two-half type visual dilator special for a peritoneal dialysis catheter. The two-half type visual dilator comprises a sheath made of stainless steel and a guide core nested in the sheath; the sheath comprises a left sheath and a right sheath, and the left sheath and the right sheath are matched with each other and each comprise a sheath body, a rod body and a first handle rod which are integrally formed; the front end of each sheath body is designed to be a circular truncated cone, and the rear end of the sheath body is designed to be a column body; the two rod bodies are provided with an arc-shaped protruding column and an arc-shaped inner groove which are matched with each other correspondingly; the two sides of the outer wall of each column body are symmetrically connected with corresponding first handle rods; the circular truncated cones and the column bodies are provided with visual windows, and transparent glass or plastic is installed on the visual windows; the top of the front end of the guide core is designed to be in a sharp shape, the rear end of the guide core is designed to be a blocking body matched with the sheath bodies, and a through hole is formed in the middle of the guide core. Money is saved for a patient, burden is relieved for national medical insurance, and an inner polyester sleeve can still be placed in an accurate position and cannot be taken out under the condition that a color Doppler ultrasound instrument is not used.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a special dilator for two-half visual peritoneal dialysis tubes. Background technique [0002] The peritoneal dialysis tube is the most commonly used peritoneal dialysis tube. There are two types of straight tube and curly tube. It is composed of a catheter, a lead wire and a polyester sleeve. The insertion end of the catheter is provided with a side hole. It is Y-shaped, and the angle between the two arms is 40°. Peritoneal dialysis catheter methods are roughly divided into surgical incision, laparoscopy, and percutaneous puncture. Among them, the percutaneous puncture method does not incise the abdominal cavity, but only uses puncture. In fact, it belongs to "operation" rather than "surgery". . The so-called "operation" means that there is no need to enter the operating room, and operations can be performed in the operating room, treatment room, or even at the bedside. Compared...

AI Technical Summary

Problems solved by technology

"Although there is an inner sliding sheath against the inner polyester sheath, the outer tear-off sheath can only be torn in the superficial surface of the human skin, while the tear-off sheath deep inside the body is difficult to tear, and can only be pulled out of the body and torn piece by piece , so that the inner sliding sheath and the inner polyester sleeve are taken out of the body virtually, especially for some obese patients with deep rectus abdominis, it is difficult to put the inner polyester sleeve on the back sheath of the rectus abdominus or above the peritoneum, and the whole insertion In the body, it is difficult to grasp the depth of insertion, and it is even more difficult to grasp that the round platform tube reaches the posterior sheath of the rectus abdominis muscle or the upper part of the peritoneum, and may even pass through the peritoneum and enter the abdominal cavity. Reaching the posterior sheath of the rectus abdominis or above the peritoneum

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