Laparoscopic Hydatid Cyst Device with Horizontal Blade Rotation
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Solution Overview
Problem
Current laparoscopic cyst hydatid surgery instruments are bulky and unsafe, causing contamination and difficulty in aspiration due to vertical rotation, inadequate space for aspiration, and ergonomic issues, leading to prolonged operations and potential tissue damage.
Innovation Solution
A laparoscopic device with a shaft containing a concave slot at the end, integrating a blade unit for controlled horizontal rotation, separate channels for aspiration and washing, and an ergonomic design to facilitate simultaneous breaking, aspirating, and washing with minimal port usage, ensuring safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vertical rotation breaker instruments are used to break cyst content, then the cyst can be broken and aspiration facilitated, but the instruments are bulky, create safety concerns, and leave insufficient space for the aspiration cannula within the shaft
Solution Approach 1:
The patent combines the breaker blade and aspiration cannula into a single integrated shaft structure. The breaker blade rotates horizontally within the shaft while the aspiration cannula runs alongside it, merging two previously separate functions into one unified instrument that eliminates the space conflict between breaker shaft thickness and aspiration cannula clearance
Solution Approach 2:
The patent changes the rotation direction of the breaker blade from vertical to horizontal. This dimensional change allows the breaker blade to rotate perpendicular to the shaft axis, creating sufficient radial space for the aspiration cannula to function alongside it within the same shaft without interference
2Productivity
If vertical rotation breaker instruments are used, then cyst content can be broken, but safety concerns arise as they rotate vertically toward the tissue and may cause damage even with pull-push mechanisms
Solution Approach 1:
The patent inverts the rotation direction of the breaker blade from vertical (toward the tissue) to horizontal (perpendicular to the tissue). This inversion ensures that the rotating blade moves parallel to the tissue surface rather than toward it, eliminating the safety hazard of vertical rotation while maintaining effective cyst breaking capability
Solution Approach 2:
The patent introduces a horizontal rotation mechanism as an intermediary between the drive shaft and the breaker blade. This intermediary mechanism transfers rotational energy in a controlled horizontal direction, mediating between the power source and the cutting action to ensure safe operation away from the tissue
3Productivity
If coarse particles are directly aspirated, then the aspiration process begins, but the particles block the aspirator, slowing down the process and extending operation time
Solution Approach 1:
The patent applies preliminary action by breaking the cyst content into fine particles through horizontal rotation before aspiration begins. This pre-processing of the cyst material ensures that only fine, non-blocking particles enter the aspiration system, preventing aspirator blockage and maintaining continuous efficient aspiration throughout the operation
Solution Approach 2:
The patent ensures continuity of useful action by maintaining constant horizontal rotation of the breaker blade during the entire aspiration process. This continuous breaking action continuously supplies fine particles to the aspiration system, preventing blockage and ensuring uninterrupted aspiration flow throughout the operation
4Adaptability or versatility
If multiple instruments are used for breaking and aspirating, then functions are separated, but the number of ports increases and operation complexity increases
Solution Approach 1:
The patent merges multiple separate instruments (breaker and aspirator) into a single integrated multi-functional device. The unified shaft contains both the horizontal rotation breaker blade and the aspiration cannula, allowing both functions to be performed through one port insertion, thereby reducing the number of ports needed while maintaining functional separation through internal design
Data Source
AI summary
The present invention relates to a laparoscopic device used in laparoscopic cyst hydatid operations, which has a shaft that enables simultaneous performance of the breaking of the cyst content in the area by the blade in the conical slot at the end of the shaft, aspiration of the cyst fluid and the broken female vesicles and if required, washing processes and an electrically connected hand unit. The mentioned laparoscopic device contains a motor inside the hand unit, motor drive unit, cycle unit, cycle control unit and trigger and the shaft part contains aspiration channel, washing channel, the shaft enabling the blade movement and blade unit in the conical slot at the end part of the same shaft, which rotates transversely to the conical slot.