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Patent Searching and Data


Title:
MULTI-CHANNEL WORKING CANNULA
Document Type and Number:
WIPO Patent Application WO/2021/072570
Kind Code:
A1
Abstract:
Disclosed is a multi-channel working cannula, comprising a cannula body, wherein a water injection channel (6) is arranged on the cannula body; a water outlet of the water injection channel (6) is located at the front end of the cannula body; and a water injection opening in communication with the water injection channel (6) is provided in the cannula body. The water injection channel (6) is arranged in the cannula body, such that when the working cannula extends into a human body for working, water is injected from the outside to the inside to clean blood or other substances at an endoscope, thus guaranteeing a clear view of the endoscope, and achieving a good observation effect, and at the same time, the aim of inhibiting blood in blood vessels from flowing out can be achieved due to the water pressure of the water outlet.

Inventors:
YANG WENZHOU (CN)
PAN HUIHUI (CN)
Application Number:
PCT/CN2019/000236
Publication Date:
April 22, 2021
Filing Date:
December 06, 2019
Export Citation:
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Assignee:
DRAGON CROWN MEDICAL CO LTD (CN)
International Classes:
A61B1/12
Foreign References:
CN204734462U2015-11-04
CN204468021U2015-07-15
CN107397526A2017-11-28
CN205612439U2016-10-05
CN202458288U2012-10-03
JP2013009896A2013-01-17
Attorney, Agent or Firm:
JINAN SHUNYUAN PATENT AGENCY CO., LTD. (CN)
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