Rear-Mounted Camera Uterine Curettage Device for Blind Spot Elimination
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Solution Overview
Problem
Existing direct-vision abortion devices face challenges with incomplete abortion and accidental injuries to the uterus due to invisible embryo peeling processes and limited access near the uterine fundus, leading to potential perforation.
Innovation Solution
A direct-vision abortion uterine curettage device with a rear-mounted observation system and a uterine curettage mechanism at the front, featuring a diagnostic curette with a camera at the rear end to ensure complete visibility during the procedure, along with a negative pressure suction mechanism and flushing system for safe and efficient tissue removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the lens module is arranged at the most front end of the device, then the device structure is simplified, but the embryo peeling process becomes invisible and complete abortion cannot be guaranteed
Solution Approach 1:
The patent inverts the conventional arrangement by placing the lens module at the rear end of the device instead of the front end. This inversion allows the camera to observe the embryo peeling process directly while the diagnostic curette performs the actual peeling operation at the front, solving the visibility problem without compromising the peeling effectiveness
Solution Approach 2:
The patent introduces a new spatial dimension for observation by positioning the lens module axially behind the diagnostic curette rather than at the front. This dimensional change creates a rearward observation path that captures the peeling process without interfering with the forward-facing peeling operation
2Stability of the object's composition
If the lens module has a certain height with at least 8mm distance to the negative pressure suction port, then the optical system is stable, but the device cannot remove implanted embryo near the oviduct orifice or uterine fundus
Solution Approach 1:
The patent segments the device into distinct functional zones: the diagnostic curette handles the peeling operation at the front, while the lens module positioned at the rear provides observation. This segmentation allows each component to be optimized independently - the curette can be thin for deep access while the lens module maintains its optical stability
Solution Approach 2:
The patent employs a nested structure where the lens module is positioned within the device shaft at the rear end, and the diagnostic curette can be inserted through or alongside it. This nesting allows the observation system to be integrated without preventing the curette from reaching the uterine fundus
3Length of moving object
If the insertion and extraction depth of the abortion pipe is increased to reach uterine fundus, then access to deep implantation is improved, but accidental injuries to the uterine fundus and perforation risk increase
Solution Approach 1:
The patent implements real-time visual feedback through the lens module that allows the operator to directly observe the position of the diagnostic curette relative to the uterine fundus and implanted embryo. This feedback mechanism enables precise control of insertion depth, allowing the curette to reach deep implantation sites while immediately detecting and preventing excessive insertion that could cause perforation
Solution Approach 2:
The patent uses the lens module to perform preliminary observation and localization of the implanted embryo before the diagnostic curette is inserted. This preliminary action allows the operator to plan the insertion path and depth in advance, avoiding accidental injuries by knowing exactly where the embryo is located and how deep to insert the curette
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 provides a safer and more efficient abortion procedure by ensuring complete visibility and avoiding blind spots, reducing the risk of uterine injuries and incomplete abortions, while effectively removing embryo tissue from any uterine position, including the uterine fundus.
Implementation Method 1
a negative pressure suction port located at the rear end of the camera is used to suck the implanted embryo tissue
Data Source
AI summary
A direct-vision abortion uterine curettage device and a direct-vision abortion uterine curettage system are provided. The direct-vision abortion uterine curettage device includes a uterine curettage mechanism, an observation mechanism, a circuit, a negative pressure suction mechanism and an operating rod. A diagnostic curette of the uterine curettage mechanism is arranged at front ends of the operating rod and a camera and is in a visual field of the camera. The camera being mounted at the rear may guarantee that the diagnostic curette is completely within a range of the visual field of the camera, so that an operation procedure may be fully visible without any observation blind areas. Meanwhile, there will be no operation blind spots due to the diagnostic curette being blocked by a height of a lens module itself The direct-vision abortion uterine curettage system can perform surgical operations under real-time display of a display system.