Bladder calculus smashing and calculus removing sheath

Abstract

The invention discloses a bladder calculus smashing and calculus removing sheath which at least comprises a sheath catheter, a sheath core and a sealing cap. The sheath catheter is made of transparent materials, and the outer wall of the sheath catheter is provided with an indication mark. The sheath catheter is composed of an outer sheath and an inner sheath, wherein the inner sheath is arranged in the outer sheath, the outer diameter of the inner sheath is smaller than the inner diameter of the outer sheath, and a gap is formed between the outer sheath and the inner sheath; the sheath core is arranged in the outer sheath in the operation process of catheter placement, the inside of the sheath core is provided with a hollow channel, and the sealing cap is arranged at the tail end of the outer sheath in a sleeved mode. The bladder calculus smashing and calculus removing sheath has the advantages of being simple in structure, low in cost, convenient to observe and operate in operation, capable of effectively improving operation efficiency and safety and reducing operative complications and the like.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a bladder lithotripsy sheath used in bladder calculus transurethral lithotripsy for establishing surgical lithotripsy and stone extraction channels. Background technique [0002] With the development and progress of science and technology, modern surgery is developing rapidly in the direction of minimally invasive technology, especially urology is one of the leaders. With the development of minimally invasive surgery, the supporting surgical instruments are constantly being introduced. Good surgical instruments can help doctors complete the operation smoothly and efficiently, reduce surgical complications, and improve the safety and success rate of the operation. In today's surgical treatment of bladder calculi, qualified hospitals and skilled doctors basically adopt minimally invasive transurethral lithotripsy for the treatment of cases that meet the indications. [0003] In the prior a...

AI Technical Summary

Problems solved by technology

The above-mentioned method of laparoscopic surgery can achieve the effect of transurethral minimally invasive lithotripsy, but at the same time there are still many shortcomings, including: when using bladder lithotripsy forceps, the diameter of the tube is thick, and the angle of the elbow at the end of the forceps is too large. Large and difficult to pass through the male urethra, especially in patients with benign prostatic hyperplasia, prostatitis, and urethritis, it is easy to damage the urethral mucosa, bleeding can cause unclear surgical vision, affect surgical observation, and easily lead to incomplete lithotripsy and bladder damage , perforation and other risks

However, with ureteroscope and nephroscope, because of the large space in the bladder, the stones are easy to move, and it is not easy to fix the stones, which increases the difficulty and operation time of the stones.

Some scholars have also adopted an improved method: performing lithotripsy under the sheath of the cystoscope or the resectoscope sheath, and the effect has been improved. , because the cystoscope and prostate resectoscope sheaths are made of opaque metal materials, only the front of the port is used for observation during surgery, which affects the overall observation of the entire surgical field, and the surgical efficiency is low

In addition, the above-mentioned lithotripsy methods require a lithotripsy device or a lithotripsy forceps to take out the lithotripsy after the lithotripsy, which prolongs the operation time and reduces the efficiency. patients, it also brings about an increase in the potential risk of surgery

[0004] At present, the relatively new Swiss EMS fourth-generation lithotripsy system has the advantages of fast stone removal and good results in the treatment of bladder stones. However, because the equipment is expensive, it also affects the clinical popularization and promotion.

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