Movable Shutter Hemorrhoid Treatment Device
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Solution Overview
Problem
Current devices for treating hemorrhoidal disease face challenges in accurately detecting and ligating hemorrhoidal arteries due to difficulty in controlling the depth of the device within the anal canal and limited access for ligation, leading to a risk of non-detection and cumbersome operations.
Innovation Solution
A device with a movable shutter that adjusts the length of the access window, allowing for precise control and enlargement of the window at different depths, facilitating detection and ligation of hemorrhoidal arteries without moving the entire device, and enabling mucopexy without removing it from the patient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire device is moved along the anal canal after the first complete rotation, then the surgeon can detect hemorrhoidal arteries that were not detected during the first rotation, but it becomes difficult to control the depth at which the notch is located
Solution Approach 1:
The device is divided into two independently controllable components: the body (with notch) and the movable obturator. The obturator can be moved separately along the body to adjust the access window position, allowing depth control without moving the entire device. This segmentation enables reliable detection while simplifying depth control.
Solution Approach 2:
The obturator is made movable relative to the body along the longitudinal axis, transforming a static structure into a dynamic one. This allows the access window to be adjusted to different depths by moving the obturator, providing flexible control while maintaining detection reliability.
2Device complexity
If a small access window is provided in the lateral wall, then the device structure is simple, but it does not facilitate ligation operations
Solution Approach 1:
The access window is transformed from a fixed small opening into a dynamically adjustable opening. By moving the obturator along the body, the surgeon can enlarge the access window when ligation is needed and reduce it when detection is the primary function, maintaining simplicity while improving operational ease.
Solution Approach 2:
The access window is segmented from the body structure by the movable obturator. This allows the window size to be independently controlled by the obturator position, enabling the surgeon to optimize the opening size for specific operations without complicating the overall device structure.
3Reliability
If the device body is moved after the first complete rotation, then the surgeon can perform second complete turn to detect remaining arteries, but the entire device displacement is cumbersome
Solution Approach 1:
The device is segmented into the body and the movable obturator, allowing the obturator to be moved independently for depth adjustment. This eliminates the need to move the entire device body for subsequent detection turns, reducing operational complexity while maintaining detection completeness.
Solution Approach 2:
The obturator's movable design allows dynamic adjustment of the access window position without moving the entire device. The surgeon can perform multiple detection turns at different depths by simply moving the obturator, making the procedure less cumbersome while ensuring complete artery detection.
Data Source
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AI summary
The invention relates to a device (1) for the treatment of haemorrhoidal disease, comprising a body (2) for partial insertion into the anus of a patient, the distal end (21) of the body (2) being closed while the proximal end (22) thereof is open, a side opening (23) being provided in the side wall of the body (2) so as to form a window (F) to access the lower rectum, and gripping means (30) extending from said proximal end (22). The device (1) further comprises a movable shutter (4) partially closing the side opening (23) of the body (2) so as to delimit with the latter the access window (F), the movable shutter (4) being translatable along the body (2), following the longitudinal axis of the latter, so as to vary the length of the access window (F).