Self-Deploying Wound Closure Apparatus with Ratchet-Rivet Mechanism
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Solution Overview
Problem
Minimally invasive surgery (MIS) procedures face complications such as abdominal adhesions and port-site wound hernias due to inadequate closure methods, which lead to prolonged recovery, increased medical costs, and pain, primarily because existing suturing techniques are time-consuming, difficult, and prone to complications like poor wound healing and suture failure.
Innovation Solution
A one-piece wound closure apparatus that functions as its own insertion device and deployment tool, using a unidirectional ratchet-rivet mechanism to securely close the fascial defect without requiring a surgical cannula or pneumoperitoneum, featuring a bio-compatible wound plug that promotes tissue regeneration and healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional suturing techniques are used to close fascial defects, then wound closure is achieved, but the procedure is time-consuming and difficult
Solution Approach 1:
The wound closure device is self-deploying and self-securing. The ratchet-rivet mechanism automatically engages and locks when the device is inserted, requiring no manual manipulation or additional surgical instruments. The device serves its own insertion and deployment functions, eliminating the need for time-consuming manual suturing while maintaining reliable wound closure.
Solution Approach 2:
The patent replaces the complex mechanical system of manual suturing with a simplified mechanical deployment system. The ratchet-rivet mechanism provides automatic securing through mechanical engagement, substituting the manual needle-and-thread suturing process with a single-insertion device that deploys itself and secures the wound automatically.
2Reliability
If traditional suturing techniques are used to close fascial defects, then wound closure is achieved, but complications like poor wound healing and suture failure occur
Solution Approach 1:
The device includes a bio-compatible wound plug that promotes tissue regeneration and healing. The plug actively participates in the healing process by providing a scaffold for tissue growth, rather than passively waiting for natural healing. This self-active approach to wound care reduces complications and improves healing outcomes.
Solution Approach 2:
The wound closure device combines multiple materials with different functions: the ratchet-rivet mechanism for mechanical securing, and the bio-compatible wound plug for tissue regeneration. This composite structure integrates both mechanical closure and biological healing promotion, reducing complications associated with traditional single-material suturing.
3Manufacturing precision
If additional surgical instruments and visualization tools are used, then precise wound closure is achieved, but device complexity and procedure difficulty increase
Solution Approach 1:
The patent merges multiple functions into a single integrated device: insertion, deployment, securing, and wound promotion are all accomplished by one device. The ratchet-rivet mechanism and wound plug are combined in a single unit that performs all necessary functions, eliminating the need for multiple separate surgical instruments and reducing procedural complexity.
Solution Approach 2:
The single wound closure device performs multiple functions: it inserts itself, deploys the closure mechanism, secures the fascial defect with the ratchet-rivet system, and promotes healing with the bio-compatible plug. This multi-functional design replaces the need for multiple specialized instruments while maintaining precise wound closure.
Data Source
AI summary
A wound closure apparatus can be a self-contained device for delivery and deployment of a wound plug. The apparatus can include a post and a wound plug. The post can have a top end, a bottom end, and an interior channel located between the top end and the bottom end. The bottom end of the post can include a plurality of perforations extending from the interior channel to an outer surface of the post. The wound plug can include a body and a bladder, the bladder disposed around the body. In an assembled configuration of the wound closure apparatus, the bottom end of the post is positioned through an opening of the bladder such that the bladder can receive a fluid through the interior channel and the plurality of perforations.