Transanal Hemorrhoid Device with Movable Jaws and Stapling
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Solution Overview
Problem
Current methods for treating hemorrhoids, such as rubber elastic band ligation and PPH, face limitations in achieving radical treatment due to incomplete positioning and large wound size, respectively.
Innovation Solution
A device and method for transanal treatment of hemorrhoids using a stapler or clip system with movable jaws and energy application for precise tissue clipping and cutting, allowing for deeper hemorrhoid engagement and reduced wound size, along with an anoscope for minimally-invasive surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If rubber elastic band ligation is used, then the hemorrhoid can be treated with a simple device, but the band cannot be deeply positioned at the root of the hemorrhoid and tends to conform to the tissue, resulting in incomplete treatment
Solution Approach 1:
The device divides the hemorrhoid treatment into two distinct actions: first capturing the hemorrhoid tissue between jaws, then applying a separate cutting/stapling mechanism. This segmentation allows the cutting element to reach deeper at the root while the gripping jaws maintain stable positioning, resolving the contradiction between positioning depth and device complexity.
Solution Approach 2:
The invention introduces a longitudinal dimension to the treatment by extending the stapler/clip device along the anal canal axis, allowing deep positioning at the hemorrhoid root. The movable jaws provide radial compression while the longitudinal extension enables deep engagement, achieving complete treatment without excessive device complexity.
2Reliability
If PPH method with circular stapler is used, then the hemorrhoids can be completely removed, but the cut affects the entire section of the anal canal and produces a large wound
Solution Approach 1:
The device extracts and removes only the hemorrhoid tissue specifically, rather than cutting the entire anal canal section as in PPH. The selective cutting mechanism targets only the protruding hemorrhoid while preserving the surrounding healthy anal canal tissue, achieving complete hemorrhoid removal with minimal wound size.
Solution Approach 2:
The cutting and stapling action is localized precisely to the hemorrhoid site only. The jaws and cutting element are positioned to affect only the targeted hemorrhoid tissue, leaving the rest of the anal canal intact. This localised approach ensures complete treatment of the hemorrhoid while minimizing damage to surrounding healthy tissue.
3Manufacturing precision
If a stapler or clip system with movable jaws is used, then precise tissue clipping and cutting can be achieved with deeper hemorrhoid engagement, but the device structure becomes more complex
Solution Approach 1:
The device merges three functions into a single integrated system: tissue gripping by movable jaws, cutting by a cutting element, and stapling by a stapling mechanism. All three functions are combined in one longitudinal device that can be inserted through the anoscope, achieving precise clipping and cutting while avoiding the need for multiple separate devices.
Solution Approach 2:
The stapler/clip device is designed as a multi-functional tool that can perform gripping, cutting, and stapling operations. The movable jaws provide universal tissue capture capability, while the integrated cutting and stapling mechanisms offer universal application for both hemorrhoid removal and hemostasis, reducing overall system complexity despite the advanced functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables more radical hemorrhoid treatment with reduced wound size and patient discomfort, ensuring stable clip or staple positioning and effective hemostasis, while simplifying procedures and minimizing risks.
Implementation Method 1
a second element movable with respect to the first element between a first position, in which the second element is spaced from the first element, and a second position, in which the second element abuts the first element
Implementation Method 2
A compression element, extending from the distal end of the shaft towards the head and adapted to be compressed between the jaws in the closed position of the jaws
Implementation Method 3
energy application for precise tissue clipping and cutting
Data Source
AI summary
A device for the intraluminal treatment of tissue comprises a handle, a shaft which extends from the handle and a head arranged at the distal end of the shaft, wherein the head comprises at least one jaw, movable between an open position, wherein it defines a window for the insertion of the tissue and surrounding tissue, and a closed position, and wherein the shaft extends between the handle and head in a curvilinear longitudinal direction.