Magnetic Field Source Positioning for Surgical Coupling Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current magnetic anchoring and guidance systems for minimally invasive procedures face challenges in controlling the magnetic coupling force across tissue, leading to potential tissue trauma and difficulty in lateral movement due to strong magnetic attraction.
Innovation Solution
A device with a magnetic field source assembly and positioning assembly that includes a driver and actuator for adjusting the elevational position of the magnetic field source, along with a magnetic coupling force monitor, allows for controlled adjustment of the magnetic coupling force to maintain a level that is sufficient for object positioning without inducing tissue trauma, using a manually or automatically controlled system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the magnetic coupling force is increased to improve object positioning stability, then the object remains securely positioned, but tissue trauma occurs and lateral movement becomes difficult
Solution Approach 1:
The magnetic field source assembly is made dynamically adjustable in its elevational position through a positioning assembly with driver and actuator mechanisms. This allows the magnetic coupling force to be dynamically modified during the procedure by changing the distance between the external magnetic field source and the internal object, enabling the system to transition between strong coupling for positioning stability and reduced coupling for tissue safety and movement ease.
Solution Approach 2:
The system changes the physical parameter of magnetic coupling force by adjusting the elevational position of the magnetic field source. By varying the distance parameter between the external and internal magnetic components, the magnetic coupling force can be precisely controlled to maintain optimal values that ensure positioning stability without causing tissue trauma.
2Reliability
If the magnetic coupling force is increased to maintain secure object positioning, then positioning stability is improved, but ease of lateral movement deteriorates
Solution Approach 1:
The positioning assembly enables dynamic adjustment of the magnetic coupling strength during the procedure. When lateral movement is required, the driver and actuator mechanisms adjust the elevational position of the magnetic field source to reduce coupling force, facilitating smooth movement. When positioning stability is needed, the system increases coupling force by adjusting the distance, thus resolving the contradiction between secure positioning and ease of movement.
3Device complexity
If the magnetic field source position is fixed to simplify device structure, then device complexity is reduced, but control over magnetic coupling force is lost
Solution Approach 1:
Rather than fixing the magnetic field source position, the invention implements a positioning assembly with driver and actuator mechanisms that enable controlled movement in the elevational direction. This dynamic structure provides adaptability and versatility in controlling magnetic coupling force while maintaining a relatively simple overall device architecture, thus resolving the contradiction between structural simplicity and functional adaptability.
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
Enables precise control of the magnetic coupling force to facilitate smooth lateral movement of internal objects during minimally invasive procedures while preventing tissue trauma, ensuring effective and safe operation.
Implementation Method 1
a first magnetic field source for providing a magnetic field across tissue. The first magnetic field provides a magnetic coupling force between the first magnetic field source and an object that provides a second magnetic field
Data Source
AI summary
A device for manipulating a magnetic coupling force across tissue in response to a monitored coupling force is described. The device includes a magnetic field source assembly, a positioning assembly operatively connected to the magnetic field force assembly, and a magnetic coupling force monitor. The magnetic field source assembly includes magnets that provide an external magnetic field source for providing a magnetic field across tissue. The positioning assembly adjusts the position of the magnetic field source. The magnetic field creates a magnetic coupling force between the external magnetic field source and an object positioned in use in a patient during a procedure, wherein the object has or is associated with an internal magnetic field.