Barbed Medical Device for Tissue Perforation Sealing
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Solution Overview
Problem
Current wound closure devices, such as sutures, are cumbersome and time-consuming for closing tissue punctures during surgical procedures, leading to increased operating room time and costs.
Innovation Solution
A medical device with an elongate body featuring barbs and a foam structure that expands to seal tissue perforations, along with moveable inner and outer members acting as tissue scaffolds, facilitates faster and more efficient closure by securing the device within the tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sutures are used to close tissue punctures, then wound closure is achieved, but operating time and procedural complexity increase
Solution Approach 1:
The device divides the wound closure function into separate components: an elongate body for delivery, a foam structure for sealing, and barbs for anchoring. This segmentation allows each component to perform its specific function efficiently, reducing overall procedure time while maintaining closure effectiveness
Solution Approach 2:
The foam structure is pre-formed and attached to the elongate body before insertion. Upon deployment, it automatically expands to seal the tissue puncture, eliminating the need for time-consuming manual suturing steps and reducing operating room time
2Reliability
If traditional suturing methods are used, then tissue punctures are closed, but device complexity and procedural difficulty increase
Solution Approach 1:
The invention merges multiple functions into a single integrated device: the elongate body serves as both delivery mechanism and anchor, the foam structure provides sealing, and barbs prevent migration. This consolidation simplifies the overall procedure compared to multiple separate suturing steps
3Reliability
If a foam structure is used to seal tissue perforations, then fluid passage is limited, but device size and insertion difficulty increase
Solution Approach 1:
The foam structure transitions from a compressed state during insertion to an expanded state after deployment. This dynamic size change allows easy passage through the elongate body and simple insertion through tissue, while still providing effective sealing and fluid barrier functionality once deployed
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 device effectively seals tissue perforations, limits fluid passage, and promotes tissue ingrowth, reducing complications and operating time while providing a biocompatible and biodegradable solution.
Implementation Method 1
the foam structure is configured to change dimension from a first compressed shape for delivery to a second expanded shape for placement
Implementation Method 2
a plurality of barbs which are oriented so as to enable the outer member to move distally along the elongate body while limiting proximal movement of the outer member
Data Source
AI summary
A medical device for wound closure, e.g., repairing perforations and tissue wall defects. The medical device has a barbed elongate body and an outer member. The medical device may further include a foam structure. The medical device may also include an inner member which may be a tissue scaffold. A method for closing tissue is also disclosed.