Anorectal Surgical Instrument with Selective Tissue Cutting
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Solution Overview
Problem
Conventional surgical instruments for anorectal procedures, such as hemorrhoid and rectal polyp removal, are inefficient due to their complexity, slow suturing speed, and rigidity, leading to increased pain and medical expenses, especially when dealing with single or multiple hemorrhoids or rectocele conditions.
Innovation Solution
A multifunctional anorectal surgical instrument with a hollow main body featuring a closed-ring cut section, suture junction, and inserting guider, allowing for precise cutting and suturing without the need for additional cannulas or anoscopy, facilitating quicker operations and reducing patient discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional circular stapler is used to cut around hemorrhoids, then all hemorrhoids are cut regardless of abnormal state, but this harms patients and has no positive influence on rehabilitation
Solution Approach 1:
The instrument divides the cutting function into multiple independent openings (first opening, second opening, third opening) instead of a single circumferential cut. Each opening can be selectively positioned to target only abnormal hemorrhoids, allowing segmented and selective removal of pathological tissue while preserving healthy tissue.
Solution Approach 2:
The instrument enables localized cutting at specific positions through adjustable openings rather than uniform circumferential cutting. The openings can be positioned to match the specific locations of abnormal hemorrhoids, applying the cutting action only where needed (local quality) rather than across the entire anal canal circumference.
2Reliability
If conventional circular stapler cuts and sutures all or part of the mucosa, then suture and incision become abnormally rigid and inflexible, but this causes pain during defecation and requires additional suturing
Solution Approach 1:
The suture process is divided into multiple discrete stitches through separate openings rather than a single continuous circumferential suture. This segmentation allows each suture stitch to be placed independently at specific locations, creating a more flexible and comfortable suture pattern that maintains reliability while reducing rigidity.
Solution Approach 2:
The instrument enables dynamic and flexible suture placement through multiple adjustable openings rather than a fixed circumferential suture pattern. The openings can be positioned and adjusted to create sutures that adapt to tissue movement during defecation, maintaining wound closure while allowing necessary tissue flexibility.
3Measurement precision
If multiple surgical tools and cannulas are used for anorectal surgery, then surgical precision is improved, but device complexity and operation time increase
Solution Approach 1:
The instrument merges multiple surgical functions (cutting, suturing, tissue manipulation) into a single integrated device with multiple openings. This consolidation eliminates the need for separate cannulas and surgical tools, reducing device complexity while maintaining surgical precision through the coordinated use of multiple openings for different surgical actions.
Solution Approach 2:
The instrument is designed as a universal multi-functional device that can perform cutting, suturing, and tissue manipulation through its multiple openings. This multi-functionality allows a single instrument to replace multiple specialized tools, simplifying the surgical procedure while maintaining the precision needed for different surgical tasks.
4Reliability
If hand suturing is performed for rectocele repair, then surgical effectiveness is achieved, but suturing speed is slow and procedures are complicated
Solution Approach 1:
The suturing process is segmented into multiple discrete stitches through separate openings, allowing systematic and efficient placement of sutures. This segmentation enables the surgeon to work through the repair in an organized sequence, improving suturing speed while maintaining the effectiveness of each individual suture stitch.
Solution Approach 2:
The instrument allows preliminary positioning and preparation of tissue through the multiple openings before final suturing. This preliminary action enables better tissue alignment and preparation, making the actual suturing process faster and more efficient while ensuring repair effectiveness.
Data Source
AI summary
The present invention provides an instrument for anorectal surgery, comprising a hollow main body, a suture junction disposed at a rear end of the main body and an inserting guider disposed at a front end of the main body. At an operating position, all or part of mucosa and tissues can get through the main body. At least one opening is made in the wall of the main body, and all or part of the mucosa and tissues can get into a hollow interior of the main body through the opening. Because of the openings on the wall of the main body, the present invention can be operated to perform the anorectal surgery of local and non-annular cutting, which facilitates a quick surgical operation, further allays the pain of the patients, and a better operation effect is obtained.