Large-channel and direct-inserting endoscope

Abstract

The invention discloses a large-channel and direct-inserting endoscope. The large-channel and direct-inserting endoscope comprises an inserting part and an operating part, wherein the inserting part comprises an inserting catheter and a tip head part fixed at the front end of the inserting catheter; the operating part is connected to the tail end of the inserting part and comprises a handle and ahandgrip forming a certain angle with the handle; an instrument inlet is formed in the rear end surface of the handle of the operating part, an instrument catheter penetrates in the handle and an inner cavity of the inserting catheter, and an acute included angle between a section axis of the instrument inlet and a section axis of the instrument catheter in the handle is smaller than 15 degrees. According to the large-channel and direct-inserting endoscope, an optical fiber is not required to bend when extending into the instrument channel from the instrument inlet, so that optical fiber damage is effectively prevented; meanwhile, the inner diameter of the instrument catheter is increased, two or more instruments can be allowed to be inserted into the instrument catheter simultaneously foroperation, the surgical time is shortened, the surgical efficiency is improved, and the large-channel and direct-inserting endoscope has quite high practical value.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a large channel straight insertion endoscope. Background technique [0002] In the field of medical devices, there are separate flexible ureteroscopes and rigid ureteroscopes. Rigid ureteroscope is easy to operate and can easily pass through the ureter to reach the renal pelvis orifice, but because the front end of the rigid ureteroscope cannot be bent, it cannot enter the renal pelvis; while flexible ureteroscope soft nephrolithotomy is that the urinary catheter enters the kidney and can reach the urinary system Any position, non-invasive removal of kidney stones directly outside the body. Surgical steps: Insert a rigid ureteroscope through the external opening of the urethra, check for abnormalities in the bladder, find the right ureteral opening, insert a zebra guide wire, and insert a soft endoscope under the guidance of the zebra guide wire to expand the outer sheath, and...

AI Technical Summary

Problems solved by technology

The utility model provides a multi-purpose endoscope with automatic water circulation in the operation process, which can be used in conjunction with various lithotripsy systems, has good safety, and can effectively relieve patients' pain; it solves the problem of the lithotripsy process in the prior art Among them, the water circulation is inconvenient, it cannot effectively relieve the pain of patients, and the technical problems of poor adaptability

[0006] However, the endoscope involved in the above-mentioned prior art is easy to damage the optical fiber when the optical fiber is inserted, and the internal size of the instrument channel is limited, and it is impossible to insert two or more medical instruments through one instrument channel at the same time to perform surgical operations at the same time. low efficiency

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