Elastic Cervical Vaginal Shaping Device for Adhesion Prevention
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Solution Overview
Problem
Current auxiliary shaping devices for cervical vaginal penetration plasty fail to prevent cervical adhesion, causing discomfort and fertility issues, and are often replaced by inadequate materials like rubber drainage tubes and metal intrauterine devices that lead to complications.
Innovation Solution
An auxiliary shaping device comprising a uterine cavity support, cervical canal support, and vaginal support made of elastic materials with a hollow bowl-shaped structure and variable-diameter connections, allowing for deformation and secure placement without a fixing belt, facilitating insertion and removal, and enabling discharge of uterine secretions to prevent obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rubber drainage tube or metal intrauterine device is used as auxiliary shaping device, then the device can be placed in the cervix, but the device is easy to drop and infect after repeated placement, causing cervical adhesion and discomfort
Solution Approach 1:
The patent changes the material parameter from traditional rubber or metal to elastic material with specific elasticity characteristics. This parameter change enables the device to deform under external force for easier insertion while maintaining structural integrity for preventing cervical adhesion, and the elastic material is biocompatible to reduce infection risk
Solution Approach 2:
The patent introduces dynamic characteristics to the auxiliary shaping device through its elastic nature. The device can dynamically adapt to cervical movements and deformations, maintaining effective positioning without requiring fixation belts. This dynamic adaptation prevents cervical adhesion while reducing patient discomfort compared to static rigid devices
2Stability of the object's composition
If inert and non-deformable material is used for long-term placement, then the device can maintain shape, but the device is difficult to insert and remove
Solution Approach 1:
The patent changes the material parameter from non-deformable to elastic material that exhibits time-dependent deformation characteristics. The material maintains its overall shape for stability but allows temporary deformation under external force during insertion and removal, then returns to its original shape, solving both requirements
Solution Approach 2:
The patent introduces dynamic deformation capability to the device structure. The elastic material allows the device to dynamically change shape during insertion/removal operations under external force, then maintains stable shape during long-term placement, providing both ease of operation and shape stability
3Reliability
If fixation belt is used to prevent slippage, then the device can be secured, but the device causes patient discomfort
Solution Approach 1:
The patent extracts and eliminates the fixation belt component from the system. Instead of using an external fixation mechanism that causes discomfort, the invention relies on the intrinsic elastic properties and structural design of the auxiliary shaping device itself to achieve secure positioning in the cervix without slippage
Solution Approach 2:
The patent enables the device to self-secure in the cervix through its elastic material properties and structural design. The device automatically adapts to and maintains positioning without requiring external fixation belts or additional components, thereby eliminating the source of patient discomfort while ensuring reliability
4Duration of action of moving object
If repeated placement of rubber drainage tube is performed, then the device can be reused, but the device ages and causes middle cavity occlusion and obstruction
Solution Approach 1:
The patent changes the material parameter from aging-prone rubber to elastic material with superior aging resistance. This material parameter change maintains the device's mechanical properties and elasticity over repeated use cycles, preventing deformation that could lead to middle cavity occlusion and obstruction while allowing long-term reusability
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 device reduces patient discomfort, prevents cervical adhesion, and maintains fertility by ensuring secure placement and easy insertion/removal, while allowing for effective discharge of uterine secretions, thus addressing the limitations of existing devices.
Implementation Method 1
The uterine cavity support, the cervical canal support and the vaginal support have elasticity in the present invention, and can produce large deformation under the action of an external force, which facilitates the insertion and removal of the auxiliary shaping device
Data Source
AI summary
An auxiliary shaping device for cervical vaginal penetration plasty and a use method thereof. The auxiliary shaping device includes a uterine cavity support, a cervical canal support and a vaginal support which are made of elastic material. The uterine cavity support is a hollow bowl-shaped structure; the uterine cavity support includes a first end and a second end; the first end has a larger diameter than the second end; the first end includes a plurality of valve bodies evenly distributed in circumferential direction; a concave part is arranged between two adjacent valve bodies, the concave part has an opening shape; uterine cavity secretions enter an interior of the uterine cavity support through the concave part; one end of cervical canal support is connected with the second end, other end is connected with vaginal support; a passage is arranged in the uterine cavity support; cervical canal support and vaginal support.