Surgical Mesh Maker Applicator for Minimally Invasive Hernia Repair
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Solution Overview
Problem
Current hernia repair techniques, particularly in laparoscopic procedures, lack innovative solutions for effectively reinforcing sub-dermal tissue with surgical meshes, necessitating the development of more efficient and minimally invasive methods for tissue reinforcement.
Innovation Solution
A surgical mesh maker applicator that uses an in-situ forming material, such as adhesives, to create a patterned mesh structure on sub-dermal tissue, featuring a handle with an outer tube and inner tube mechanism that dispenses the material through a longitudinal slot, allowing for rotational and oscillating patterns for enhanced tissue reinforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional hernia repair techniques are used, then tissue reinforcement can be achieved, but the procedures are highly invasive and lack minimally invasive solutions
Solution Approach 1:
The patent replaces traditional mechanical mesh implantation with an in-situ forming adhesive system. The adhesive cartridge delivers material through the outer tube, and the inner tube with its patterned surface creates a mesh structure directly in the tissue, eliminating the need for separate mechanical mesh placement and reducing invasive procedures
Solution Approach 2:
The patent changes the physical state and application method of the reinforcing material. Instead of using solid pre-formed meshes, the system uses an adhesive material that is applied in a patterned manner and cures in-situ, transforming the material from a static implant to a dynamically applied reinforcement that adapts to tissue anatomy
2Reliability
If patterned mesh structure is created using inner tube rotation, then tissue reinforcement is enhanced, but device complexity increases
Solution Approach 1:
The patent employs a nested tube configuration where the inner tube is positioned within the outer tube. The inner tube contains the patterned surface and adhesive delivery system, while the outer tube provides structural support and guides placement. This nesting allows the complex patterned mesh creation function to be housed within a simple outer framework
Solution Approach 2:
The patent introduces rotational capability to the inner tube to create dynamic patterned mesh structures. The inner tube can rotate relative to the outer tube during application, allowing the patterned surface to deposit adhesive in various orientations. This dynamic motion transforms a static adhesive application into a versatile patterned reinforcement system
3Object-affected harmful factors
If in-situ forming material is applied through longitudinal slot, then minimally invasive procedure is achieved, but manufacturing precision of patterned mesh is challenging
Solution Approach 1:
The patent uses the inner tube's patterned surface as a mold or copy that directly forms the mesh structure. The pattern on the inner tube is replicated in the adhesive material as it is applied through the longitudinal slot, creating an accurate patterned mesh without requiring complex external patterning equipment
Solution Approach 2:
The inner tube acts as an intermediary between the adhesive material and the tissue. It receives the adhesive through its lumen and deposits it through its patterned outer surface, which serves as the forming tool. This intermediary component translates the simple longitudinal slot delivery into a complex patterned mesh structure
Data Source
AI summary
A surgical mesh maker applicator for applying an in situ forming material to subdermal tissue is disclosed and includes a handle and an outer tube extending from the handle. The outer tube defines a longitudinal axis and a longitudinal slot along a distal portion of the outer tube. An inner tube containing a pattern extends at least partially through the outer tube. A rotational mechanism rotates the inner tube with respect to the longitudinal axis to dispense the in situ forming material into a patterned structure for strengthening the subdermal tissue.