Lorentz-Force Debridement Apparatus for Precise Tissue Cutting
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Solution Overview
Problem
Current debridement methods for chronic wounds are inefficient, as they fail to accurately define tissue viability, are costly, and require multiple treatments, leading to incomplete healing due to defective ECM remodeling and persistent inflammation.
Innovation Solution
A debridement apparatus utilizing a controllable Lorentz-force electromagnetic actuator system with a nozzle and suction port to deliver and remove debridement substances, allowing for precise pressure profiles to cut, stimulate, or remove tissue, driven by Lorentz-force motors capable of high-speed and high-pressure operations with sensor feedback for tissue differentiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If surgical debridement is used, then tissue border definition is improved, but cost and patient acceptance deteriorate
Solution Approach 1:
The patent replaces mechanical surgical debridement with a fluid jet system driven by Lorentz-force electromagnetic actuators. The high-pressure fluid jet (water or other debridement substances) delivers precise mechanical energy to cut and separate necrotic from viable tissue, achieving surgical-level precision without the need for expensive surgical procedures and skilled operators.
Solution Approach 2:
The system employs variable pressure profiles controlled by the Lorentz-force actuators to optimize tissue cutting performance. By dynamically adjusting fluid pressure, velocity, and jet characteristics, the system achieves precise tissue border definition while controlling costs through programmable parameters rather than expensive consumables.
2Ease of manufacture
If chemical debridement is used, then cost is reduced, but treatment time and patient compliance deteriorate
Solution Approach 1:
The patent substitutes chemical debridement with a mechanically-driven fluid jet system. Instead of relying on slow chemical reactions that require multiple treatments over days or weeks, the Lorentz-force actuated jet delivers immediate mechanical cutting action, reducing treatment time to minutes while maintaining cost-effectiveness through simple fluid delivery rather than expensive chemical agents.
Solution Approach 2:
The system uses pulsed or periodic jet delivery controlled by the Lorentz-force actuators to optimize debridement efficiency. By delivering controlled bursts of high-pressure fluid, the system achieves rapid tissue separation in minimal time, improving upon both slow chemical methods and continuous mechanical surgery.
3Productivity
If high pressure jet is used for debridement, then debridement efficiency is improved, but bacterial penetration and tissue damage worsen
Solution Approach 1:
The patent employs a focused fluid jet with localized high pressure precisely at the tissue interface, while surrounding areas remain at lower pressure. The Lorentz-force actuator directs the jet exactly where needed, achieving efficient debridement only at the target site without subjecting broader tissue to harmful high-pressure effects that could promote bacterial penetration or damage healthy tissue.
Solution Approach 2:
The system dynamically adjusts pressure parameters using the Lorentz-force actuator to optimize the balance between debridement efficiency and tissue safety. By controlling jet pressure, duration, and frequency, the system achieves effective necrotic tissue removal while minimizing conditions that could facilitate bacterial invasion or damage viable tissue.
4Manufacturing precision
If Lorentz-force actuator system is used, then pressure control precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical pressure control systems with electromagnetic Lorentz-force actuators. These actuators provide precise pressure and velocity control through electrical signal modulation, achieving superior pressure control precision while actually reducing mechanical complexity by eliminating gears, valves, and mechanical linkages in favor of direct electromagnetic actuation.
Solution Approach 2:
The Lorentz-force actuator system controls multiple parameters (pressure, velocity, jet frequency, pulse duration) through electrical signals, enabling precise pressure control while maintaining relatively simple device architecture. The electromagnetic actuation method provides programmable precision without the mechanical complexity of traditional pressure control systems.
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 apparatus effectively removes necrotic tissue while minimizing bacterial penetration and promoting wound healing by delivering precise fluid dynamics and suction, enhancing cellular proliferation and tissue regeneration.
Implementation Method 1
A debridement apparatus utilizing a controllable Lorentz-force electromagnetic actuator system with a nozzle and suction port to deliver and remove debridement substances
Data Source
AI summary
A debridement device having a controllable Lorentz-force actuator is disclosed. The debridement device includes a nozzle delivering a jet of debridement substance to a tissue and the jet is driven by the Lorentz-force actuator. The device may have a suction port for removing the debridement substance. A second Lorentz-force actuator can be used for each of the jet and suction. The first and second Lorentz-force actuators for the jet and suction can also be configured to provide for continuous jet injection and continuous suction. The device may include a second nozzle delivering a second jet of debridement substance to the region of tissue and the first and second jets may intersect and dissipate into a mist upon intersection to dissipate the kinetic energy of the jets. The Lorentz-force actuator may drive a reciprocating piston pump providing continuous pressure to the nozzles.