Hemorrhoid Treatment Device with Segmented Mucosa Support Bars
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Solution Overview
Problem
Existing devices for treating hemorrhoid prolapse, particularly during minimally invasive hemorrhoid artery ligation and purse-string suture applications, face challenges in maintaining accurate control and preventing mucosa from penetrating too far into the device, leading to inefficiencies and pain during procedures for grades III and IV prolapse.
Innovation Solution
The device features a tube and closure shell with rotatable and displaceable walls, incorporating bars that support the mucosa and divide the operation window into individual openings, allowing for precise surgical access while preventing excessive mucosa penetration, and is designed to be inserted in a closed position with congruent openings that can be selectively enlarged for the procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operation gap is enlarged by rotating the closing device relative to the tube, then the mucosa can be reached for surgery, but the mucosa penetrates too far into the interior of the tube
Solution Approach 1:
The tube shell wall is segmented into multiple sections with individual bars that can be independently positioned. These bars divide the operation opening into individual openings, allowing the mucosa to be accessed while preventing excessive penetration into the tube interior. Each bar acts as a separate controllable element that maintains precise positioning.
Solution Approach 2:
The bars serve as intermediary elements between the tube shell opening and closure shell opening. They mediate the interaction by providing support structures that allow surgical access while simultaneously preventing the mucosa from penetrating too far into the tube. The bars act as a controlling interface that balances accessibility with precision.
2Reliability
If multiple punctures are made in the mucosa for purse-string suture, then the prolapse is reduced, but the operation time increases significantly
Solution Approach 1:
The device segments the suture application process by providing multiple pre-positioned bars that create individual openings in the operation window. This allows multiple punctures to be made simultaneously or in rapid succession through the structured openings, rather than requiring sequential positioning for each puncture, thereby reducing overall operation time while maintaining effective prolapse reduction.
3Ease of operation
If the tube shell opening and closure shell opening are made congruent, then surgical access is improved, but the effective opening becomes too large
Solution Approach 1:
The congruent opening is segmented by the bars into multiple smaller individual openings. This segmentation allows the overall operation window to remain large enough for good surgical access while the individual openings are controlled in size to prevent excessive mucosa penetration. The bars effectively divide the large opening into manageable sections.
Solution Approach 2:
Different regions of the operation opening have different qualities - the overall opening maintains a large area for surgical access, while the local openings created by the bars are smaller and more controlled. This local differentiation allows simultaneous optimization of both surgical accessibility and precision control.
Data Source
AI summary
A device for use for the treatment of a hemorrhoid prolapse, particularly by HAL surgery, attaching a tightening suture, or a rubber band ligation, using a tube having a tube shell wall and a closing device having a closure shell wall enclosing a hollow space. The tube shell wall is supported displaceably and/or rotatably in the hollow space of the closure shell wall, and the tube shell wall and the closure shell wall can be inserted into a rectum of a patient. The tube shell wall has at least one tube wall opening, and the closure shell wall has at least one closure shell opening which can be at least partially aligned with one another in an open position with a web arranged thereof protruding at least partially into the tube shell opening and/or into the closure shell opening.