Disposable endoscope sheath with retractable bridge

Abstract

The invention provides a disposable endoscope sheath with a telescopic endoscope bridge. The disposable endoscope sheath comprises an endoscope cavity in the sheath, a sheath main body and the telescopic endoscope bridge. The rear end of the endoscope cavity is communicated with the sheath main body and the telescopic endoscope bridge; the telescopic endoscope bridge comprises a sheath main body connecting part, a sealing ring, a check ring and a limiting sleeve; the sheath main body connecting part is connected with the sheath main body; the front end of the telescopic endoscope bridge is provided with the sealing ring and the check ring in turn; the telescopic endoscope bridge is connected and communicated with the sheath main body connecting part and the sheath main body; the limiting sleeve is arranged at the rear end of the check ring and is fixedly connected with the sheath main body connecting part; the tail end of the telescopic endoscope bridge is provided with an endoscope locking device. The disposable endoscope sheath has the advantages that: the telescopic endoscope bridge can ensure that the length of an endoscope can be convenient to adjust according to different working lengths of endoscopes when the endoscope is arranged in the sheath; in addition, the endoscope only can be arranged in the sheath for one time and locked by the endoscope locking device, and theendoscope sheath is not repeatedly used.

Description

technical field [0001] The invention relates to a medical device, in particular to a disposable endoscope sheath with a retractable bridge. Background technique [0002] In the medical field, such as urology, when performing inspections or minimally invasive operations on relevant parts of the human body, the scope sheath is the most commonly used endoscope accessory. In order to protect the endoscope from contamination during inspection and operation, avoid cross-infection, and reduce the adverse effects on endoscope performance caused by repeated disinfection, disposable endoscope sheaths are more and more widely used in clinical practice. . The endoscope cavity of this type of mirror sheath is often made to be isolated from other channels, and the front end of the endoscope cavity is closed with a visible transparent protective sheet or a polymer material, which limits the working length of the front end of the endoscope. After the speculum is loaded into the sheath, th...

AI Technical Summary

Problems solved by technology

The endoscope cavity of this type of mirror sheath is often made to be isolated from other channels, and the front end of the endoscope cavity is closed with a visible transparent protective sheet or a polymer material, which limits the working length of the front end of the endoscope. After the speculum is put into the sheath, the rear end of the endoscope must be connected and locked with the locking device at the end of the mirror bridge to form a closed and isolated endoscope cavity, which limits the locking position of the rear end of the endoscope.

Due to the difference in the length of the working part of different brands of endoscopes, if the length of the endoscope cavity cannot be adjusted, when the endoscope is attached to the sheath, it is very likely that the front end of the endoscope into the endoscope cavity is in place and the rear end cannot be adjusted. It is connected to the mirror bridge locking device in place, or the rear end of the endoscope is connected and locked with the mirror bridge locking device, but the objective lens at the front end of the endoscope cavity cannot be close to the front end protection sheet of the endoscope cavity, and if the endoscope If the working length of the endoscope is too long, the visible transparent protective sheet at the front end may be pushed off, which will affect the normal observation effect of the endoscope and may cause accidental injury to the patient

[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 short bridge (i.e. the mirror bridge) has a fixed shape and cannot be adjusted telescopically. In this way, it is inconvenient to connect endoscopes with different working lengths to the mirror sheath during the operation, and the normal observation effect of the endoscope will be affected. make an impact

In addition, there is also a problem that although the end of the mirror bridge of the mirror sheath is provided with a locking mechanism, the locking mechanism can be reused after the endoscope is removed after the operation, which is easy to cause infection

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