Disposable dual channel endoscope sheath

Abstract

The invention provides a disposable dual-channel endoscope sheath which comprises a sheath tube, wherein the sheath tube is composed of an endoscope cavity and an instrument channel which are respectively independent; the front end of the endoscope cavity is provided with a transparent window which seals the endoscope cavity; the front end of the instrument channel is open; and the lower part of the front end of the endoscope cavity is also provided with a bulge which is positioned in front of the opening of the instrument channel. Due to the adoption of the technical scheme, after an operation instrument extends out of the instrument channel, since the forward axial direction of the front end of the operation instrument deviates under the restriction action of the smooth bulge, a distance is generated between the front end of the operation instrument and the front end of the endoscope cavity, thereby avoiding shielding the transparent window of the endoscope cavity, and further avoiding influencing the observation at the endoscope; and besides, the length of the telescopic endoscope bridge can be conveniently adjusted according to working lengths of different endoscopes when the endoscope is put into the endoscope sheath.

Description

technical field [0001] The invention relates to a medical device, in particular to a disposable double-channel mirror sheath capable of accommodating endoscopes and surgical instruments at the same time. 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. [0003] The Chinese patent with the 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 she...

AI Technical Summary

Problems solved by technology

[0003] The Chinese patent with the 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, one of which is that the surgical instruments protruding from the instrument channel may block part or all of the transparent windows of the endoscope cavity due to their own deformation stress or the internal extrusion of the human body, which will affect the opening of the endoscope. Observation, thereby affecting the process and effect of diagnosis and treatment

In addition, the mirror sheath structure also has the following problems: the short bridge (i.e. the mirror bridge) has a fixed shape and cannot be adjusted by telescopic adjustment. In this way, it is inconvenient to connect endoscopes with different working lengths to the mirror sheath during the operation, which will affect the endoscope. The normal observation effect of the mirror is affected

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