Improved disposable endoscope sheath

Abstract

The invention provides an improved disposable endoscope sheath which comprises a sheath body, wherein a telescopic endoscope bridge is connected with one end of the sheath body, a sheath tube is connected with the other end of the sheath body, the sheath tube comprises an endoscope cavity and an instrument channel which are independent of each other, an arch-shaped window used for sealing the endoscope cavity is formed in the front end of the endoscope cavity, an inserting groove is formed in the lower portion of the front end of the endoscope cavity, retaining edges are arranged on the two sides of the inserting groove, the inserting groove is provided with a sheath tube protecting block, and a stop table is arranged on the rear portion of the inserting groove; a groove and a sealing ring are arranged on the telescopic endoscope bridge, a limiting inserting sheet is arranged in the groove, a pull ring sleeve is arranged on the sheath body, a saw-tooth-shaped adjusting clamp block used for adjusting a pull ring is arranged on an inner cavity of the pull ring sleeve, a lifting mechanism is arranged in the retaining edges and is connected with a pull wire, and the pull wire is connected with the pull ring through a connecting block. The improved disposable endoscope sheath has the advantages of being simple in structure, ingenious in design, low in machining cost, high in production efficiency, flexible in adjustment and the like.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to an improved disposable endoscope sheath. Background technique [0002] In the medical field, such as urology, when performing inspections or minimally invasive operations on relevant parts of the human body, not only endoscopes are often used, but some surgical instruments may also need to enter the human body at the same time to cooperate with the endoscope to complete the corresponding diagnosis or treatment. , therefore need a kind of mirror sheath that can hold endoscope and surgical instrument simultaneously. In addition, in the past, some endoscope accessories that helped endoscopes and instruments enter the human body were mostly made of stainless steel, which can be repeatedly sterilized and used in combination. , scissors and other surgical instruments, but also pre-loaded instrument manipulator in the mirror sheath. In this way, even in uncomplicated inspection oper...

AI Technical Summary

Problems solved by technology

The problems of using the above-mentioned combined accessories are: firstly, repeated use and multi-piece combined instruments are likely to cause cross-infection of patients due to incomplete disinfection; secondly, doctors need to be familiar with the use of instruments when assembling various accessories during inspection and surgery, which is cumbersome and complicated. Increased workload and prolonged operation time

[0003] The Chinese patent with authorized notification number CN100569175C discloses a disposable cystoscope sheath, which provides a dual-channel sheath structure capable of simultaneously accommodating endoscopes and surgical instruments into the human body for diagnosis and treatment, but the sheath structure simultaneously There are also problems: first of all, the adjustment of surgical instruments in diagnosis and treatment is very limited, and can only be adjusted forward, backward and around its axis, the working range is small, and the angle is not easy to control

Secondly, the protrusion at the front end of the sheath is fixed, and it is impossible to choose the appropriate angle and height of the protrusion according to its own use requirements during use. When it needs to be replaced, the connecting sheath needs to be replaced together

In addition, the mirror bridge has a fixed shape and cannot be stretched and adjusted. In this way, it is inconvenient to connect endoscopes with different working lengths to the mirror sheath during the operation, which will affect the normal observation effect of the endoscope; The connecting part of the sheath body is positioned and locked, and it is easy to rotate

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