Trocar Incision Closure Kit with Preassembled Anchor Deployment
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Solution Overview
Problem
Existing laparoscopic surgery incision closure methods lack efficient and user-friendly solutions for securing trocar ports to prevent complications such as hernia, particularly in the absence of visual control.
Innovation Solution
A trocar incision closure kit comprising a cannula, an obturator with anchor recesses and suture holders, and a handle for deploying anchors and sutures, allowing for secure closure of the incision without requiring complex assembly tools or additional instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a trocar incision closure device is used to secure the port and prevent hernia, then reliability is improved, but device complexity increases due to multiple components (cannula, obturator, anchors, sutures)
Solution Approach 1:
The patent combines multiple closure components (anchors, sutures, obturator) into a single integrated closure device that can be assembled and deployed as one unit, reducing the number of separate instruments and steps required while maintaining effective hernia prevention
Solution Approach 2:
The closure device is pre-assembled with anchors and sutures attached to the obturator before insertion, allowing the surgeon to deploy the complete closure mechanism in a single action without performing multiple separate assembly steps during the procedure
2Reliability
If anchors and sutures are deployed through the cannula, then closure effectiveness is improved, but the risk of suture entanglement or tool malfunction increases
Solution Approach 1:
The sutures are extracted from the cannula lumen during deployment and positioned externally, eliminating the risk of suture entanglement within the confined cannula space and ensuring smooth operation of the closure mechanism
Solution Approach 2:
The obturator serves as an intermediary tool that guides the sutures and anchors through the cannula during deployment, then is removed to leave the sutures in their final positioned state, preventing direct interaction between sutures and the cannula that could cause entanglement
3Adaptability or versatility
If multiple assembly steps are required for the closure device, then adaptability is improved, but productivity decreases due to increased assembly time
Solution Approach 1:
The closure device components are pre-assembled in a controlled manufacturing environment, allowing for thorough testing and optimization of the assembly process while enabling rapid deployment during surgery without requiring multiple complex assembly steps in the operating room
Data Source
AI summary
A kit for assembling an incision closing trocar comprises an obturator that comprises a shaft having a distal end and a proximal end; at least two anchor recesses provided near the distal end for retaining a corresponding anchor; a handle at the proximal end for actuating at least two pushers for pushing the corresponding anchors from the anchor recesses; an anchor assembly comprising two suture cartridges, each holding a folded or coiled suture, wherein one end of each suture exits the suture cartridge that corresponds to it and is attached to the corresponding anchor; and an anchor holder holding the corresponding anchor such that they can easily be removed from the anchor holder. The obturator is sized to be inserted from the proximal side into a cannula, such that the two anchor recesses are within the lumen when the obturator is fully inserted into the cannula.