Telescopic sealing mechanism of endoscope sheath

Abstract

The invention provides a telescopic sealing mechanism of an endoscope sheath. The telescopic sealing mechanism of the endoscope sheath comprises an endoscope tube, a hose and an endoscope bridge. When unstressed, the hose is smaller than the endoscope tube in internal diameter; the diameter of the position, for sleeving the endoscope tube, of the endoscope bridge is larger than that of the endoscope tube. One end of the hose is sleeved on the endoscope bridge while the other end of the same is sleeved on the endoscope tube, the endoscope tube is inserted into an inner cavity of the endoscope bridge, and connection parts of the three are hermetic. The hose tightly holds the endoscope bridge by deformation, the endoscope tube penetrates the hose to be inserted into the endoscope bridge, the other end of the hose is affected when one end of the same is stressed, and accordingly friction force generated by sleeving the hose on the endoscope bridge is larger than the friction force between the hose and the endoscope tube, and the endoscope tube can hermetically slide on the endoscope bridge. Due to the technical scheme, through the telescopic sealing mechanism thereof, the endoscope sheath can adjust endoscopes in different working lengths to be matched with the endoscope sheath, and the optimal working positions of the endoscopes in the endoscope sheath can be guaranteed. Meanwhile, the telescopic sealing mechanism of the endoscope sheath is simple and reliable in structure and beneficial to actual production.

Description

technical field [0001] The invention relates to a medical device, in particular to a retractable sealing mechanism for an 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, the scope sheath is the most commonly used endoscope accessory. [0003] In order to protect the endoscope from contamination during inspection and operation, avoid cross-infection, and reduce the adverse effects on the performance of the endoscope due to repeated disinfection, the application of disposable endoscope sheaths in clinical practice is becoming more and more widely. Disposable endoscope sheaths require complete sealing of the endoscope, and different brands of endoscopes may have slight differences in length. How to ensure the sealing of endoscopes of different lengths is an urgent problem to be solved. [0004] The applicant of this patent discloses a dispos...

AI Technical Summary

Problems solved by technology

[0004] The applicant of this patent disclosed a disposable endoscope sheath with a retractable mirror bridge in the patent 202218866U, but the structure is relatively complicated, and it is not conducive to the actual large-scale industrial production

Images