Endoscope Forceps Plug Eccentric Opening Guide Wire Passage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing endoscopes face challenges in efficiently guiding a guide wire through the treatment instrument insertion channel, particularly when the forceps plug can cause the wire to be caught, hindering its insertion and removal during biliary tract procedures.
Innovation Solution
A detachable forceps plug with a barrel-like and lid-like member configuration, featuring an eccentric small hole and slit design, allows the guide wire to pass through without being caught, facilitating easy insertion and removal by positioning the opening off-center relative to the treatment instrument insertion pipe sleeve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a forceps plug is attached to the treatment instrument insertion port to prevent sordes from flowing back, then the prevention of harmful factors is improved, but the guide wire may be caught by the forceps plug, making insertion and removal difficult
Solution Approach 1:
The forceps plug is designed with an asymmetric structure where the small hole (opening) is positioned eccentrically rather than at the center. This asymmetric positioning creates a specific geometric relationship between the opening and the bent conduit, allowing the guide wire to pass through smoothly without being caught, while still maintaining the plug's function of preventing sordes from flowing back through the treatment instrument insertion channel.
2Reliability
If the forceps plug blocks the treatment instrument insertion channel to prevent contamination, then the reliability is improved, but the guide wire cannot pass through smoothly, reducing productivity
Solution Approach 1:
The forceps plug incorporates a localized opening (small hole) with specific positioning and sizing characteristics. This localized quality allows the plug to maintain its overall blocking function for preventing contamination while creating a specific passage that accommodates the guide wire. The opening's position and dimensions are optimized to simultaneously achieve contamination prevention and smooth guide wire passage.
Data Source
AI summary
An endoscope includes: a conduit that is provided inside an insertion section and into which a guide wire is inserted in a direction opposite to an insertion direction of the insertion section; a bent conduit that is bent to make the conduit communicate with a pipe sleeve of a treatment instrument insertion port provided in an operation section; and a forceps plug that is detachable from the pipe sleeve. An opening is deviated from a center of the pipe sleeve toward an outer circumferential side of a bending direction of the bent conduit.