Percutaneous Hernia Prosthesis for Precise Inguinal Defect Repair
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Solution Overview
Problem
Existing hernia repair techniques often require invasive surgical procedures, which can be cumbersome and risky, especially for inguinal hernias, and there is a need for less invasive methods that can effectively repair tissue or muscle wall defects.
Innovation Solution
A percutaneous method involving the use of an implantable prosthesis, biocompatible foam, and ablative therapy to repair inguinal hernias, utilizing percutaneous access through the inguinal canal, where a prosthesis is delivered and deployed to cover or plug the defect, and optionally combined with foam injection and tissue shrinkage to secure the repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If open surgical or laparoscopic techniques are used for hernia repair, then effective defect coverage is achieved, but patient trauma and recovery time increase
Solution Approach 1:
The patent extracts the essential function of hernia repair (defect coverage) from the traditional open surgical approach and isolates it into a percutaneous delivery system. The prosthesis is delivered through a small percutaneous access point rather than requiring large surgical incisions, thereby maintaining defect coverage effectiveness while eliminating the harmful effects of extensive surgical trauma.
Solution Approach 2:
The patent introduces a percutaneous delivery system as an intermediary between the surgeon and the hernia defect. This intermediary system allows the prosthesis to be delivered through minimal access while still achieving effective defect coverage, thereby reducing patient trauma compared to direct open surgical approaches.
2Object-affected harmful factors
If percutaneous access is used for hernia repair, then patient trauma is reduced, but delivery precision to the defect site becomes more difficult
Solution Approach 1:
The patent employs preliminary action through pre-positioning elements such as tethers and guides that are placed before the main prosthesis delivery. These preliminary elements establish the correct trajectory and positioning pathway, ensuring that when the prosthesis is delivered through percutaneous access, it reaches the precise defect location despite the minimal access route.
Solution Approach 2:
The patent replaces traditional mechanical surgical manipulation with a guided delivery system that uses tethers, anchors, and tracking mechanisms to achieve precise prosthesis placement. This substitution allows for accurate positioning through percutaneous access without requiring the mechanical dexterity of open surgical techniques.
3Duration of action of stationary object
If traditional surgical repair is performed, then durable repair is achieved, but procedure time and hospital stay increase
Solution Approach 1:
The patent extracts the essential repair function from the time-consuming open surgical procedure and delivers it through a streamlined percutaneous approach. The prosthesis is deployed directly through the small access point and secured using percutaneous techniques, eliminating the need for extended surgical exposure and lengthy hospital stays while maintaining repair durability.
Solution Approach 2:
The patent changes the procedural parameters from open surgery to percutaneous delivery, which fundamentally alters the time characteristics of the procedure. The percutaneous approach allows for faster patient preparation, shorter procedure time, and reduced hospital stay while the prosthesis design ensures durable repair outcomes comparable to traditional surgery.
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
This method allows for minimally invasive hernia repair with reduced risk and recovery time, providing effective defect coverage and prevention of recurrence through scar tissue formation and tissue shrinkage, suitable for inguinal hernias.
Implementation Method 1
percutaneously delivering a biocompatible foam material into the inguinal canal
Implementation Method 2
percutaneously performing ablative therapy within the inguinal canal sufficient to cause a fibrotic response that results in scar tissue formation and/or tissue shrinkage that narrows the canal
Data Source
AI summary
A method and prosthesis is provided for percutaneous repair of an anatomical defect, such as an inguinal hernia. The method involves percutaneously accessing the inguinal canal of a patient. Following hernia reduction, if required, the hernia defect may be accessed and repaired percutaneously from within the inguinal canal. An implantable prosthesis may be percutaneously delivered into the inguinal canal. The prosthesis may be advanced along the inguinal canal from the percutaneous entry location to the defect site, where it may be deployed over and/or within the defect. A biocompatible foam material may be percutaneously delivered into the inguinal canal to reduce and/or repair the hernia defect. The foam may fill and solidify in the canal to prevent abdominal viscera from reentering the canal. Ablative therapy may be performed within the inguinal canal to cause a fibrotic response resulting in scar tissue formation and/or tissue shrinkage that narrows the canal.