Magnetic Anastomosis Devices Minimally Invasive Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for forming anastomoses, such as bypasses in the gastrointestinal, cardiovascular, or urological systems, are invasive, risky, and often require specialized expertise and equipment, with limitations in device delivery and placement, leading to complications like leaks and adhesions, and short-term patency of small anastomosis.
Innovation Solution
The development of a self-assembling magnetic compression device that can be delivered minimally invasively using a guide element and elongated manipulator, allowing for optimal placement and adjustment, with radial members made from various materials for mechanical and bio-compatibility properties, enabling the formation of larger, more stable anastomoses between tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bypass procedures are performed using sutures or staples, then anastomosis can be formed between tissues, but the procedure is invasive, time-consuming, and requires specialized expertise and equipment
Solution Approach 1:
The patent replaces the traditional mechanical suture or staple system with a magnetic field-based system. Magnetic compression devices are delivered minimally invasively and use magnetic attraction forces to compress and join tissues, eliminating the need for complex suture materials, staplers, or specialized surgical expertise while maintaining reliable anastomosis formation.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary mechanism to achieve tissue compression and joining. Instead of direct mechanical contact with sutures or staples, magnetic forces act as an intermediary to compress the tissue between two devices, facilitating anastomosis through a less invasive pathway.
2Reliability
If compressive couplings or magnets are delivered as two separate assemblies, then magnetic compression anastomosis can be achieved, but the delivery requires open surgical field or bulky delivery device
Solution Approach 1:
The patent employs a nested delivery system where the magnetic compression device is collapsed or folded into a compact configuration that can be inserted through a single minimally invasive access point. The device is then deployed and expanded at the target site, eliminating the need for open surgical fields or multiple bulky delivery devices.
Solution Approach 2:
The magnetic compression device is divided into segments or modular components that can be collapsed together for delivery through a small access point. Once deployed, these segments expand or assemble into the full compression structure, enabling minimally invasive delivery while maintaining the integrity of the magnetic compression function.
3Ease of operation
If smaller delivery conduits are used to deliver magnetic devices, then minimally-invasive delivery is achieved, but the formed anastomosis is small and suffers from short-term patency
Solution Approach 1:
The magnetic compression device incorporates dynamic adjustment capabilities that allow the compression force to be modified after deployment. This enables the device to adapt to tissue healing progress and maintain optimal compression levels over time, thereby extending anastomosis patency duration while still using minimally invasive delivery conduits.
Solution Approach 2:
The device allows for changes in compression parameters (force, duration, distribution) after deployment. By adjusting these parameters in response to tissue healing stages, the system maintains effective anastomosis formation and patency over the long term, overcoming the limitation of small delivery conduit size.
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
Facilitates faster, less expensive treatments for chronic diseases like obesity and cancer, reducing pain and complications associated with traditional bypass procedures by creating durable, long-term anastomoses without the need for open surgery.
Implementation Method 1
magnetic segments that self-assemble into a geometric shape
Implementation Method 2
paired magnets can be delivered to tissues to be joined. Because of the strong compression, the tissue trapped between the couplings or magnets is cut off from its blood supply
Data Source
AI summary
The invention concerns delivering paired magnetic anastomosis devices to either side of tissues to be joined. The magnetic anastomosis devices are coupled to a guide element that facilitates delivery and manipulation of the devices when using minimally-invasive techniques such as endoscopy and laparoscopy. Elongated manipulators and guide tubes ae also disclosed that improve a user's dexterity with the devices during placement.