Pivotable Inner Member for Wound Closure Suture Passer
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Solution Overview
Problem
Current wound closure methods are inefficient for closing puncture wounds, particularly in surgical procedures, as they lack a systematic approach for inserting and tying sutures through tissue to effectively seal the opening.
Innovation Solution
A wound closure device comprising an outer and inner member, pivotably coupled to facilitate the insertion and retrieval of a suture passer through tissue, allowing for the deployment of sutures on opposite sides of the wound to tie it off securely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional wound closure methods are used for puncture wounds, then the procedure is simple, but the efficiency and effectiveness of closing the opening is poor
Solution Approach 1:
The device is divided into distinct functional segments: an outer member that provides structural support and defines the access opening, and an inner member that carries the suture passer mechanism. This segmentation allows each component to be optimized for its specific function while working together to achieve efficient wound closure.
Solution Approach 2:
The inner member is disposed within the outer member, creating a nested configuration. The suture passer is received within the inner member, forming another level of nesting. This nested structure allows the device to maintain a compact profile during insertion while providing the necessary functional complexity for efficient suture passage and wound closure.
2Reliability
If a systematic approach for inserting sutures through tissue is implemented, then the effectiveness of sealing the opening is improved, but the device complexity increases
Solution Approach 1:
The inner member acts as an intermediary mechanism between the external operator and the tissue. It carries the suture passer through the outer member and into the tissue, providing a systematic and controlled method for suture insertion that improves sealing effectiveness while managing the complexity through functional specialization.
Solution Approach 2:
The device incorporates movable and adjustable components within the inner member that allow dynamic adaptation during the suture insertion process. This enables the systematic approach to accommodate variations in tissue characteristics and wound configurations, improving reliability while the modular design manages complexity.
3Adaptability or versatility
If the inner member is pivotable between multiple positions, then the ability to guide suture passer through tissue on opposite sides is improved, but the device structure becomes more complex
Solution Approach 1:
The inner member is pivotably coupled to the outer member, allowing it to transition between a first position where it is coaxially disposed and a second position where it is angled relative to the outer member. This dynamic repositioning capability enables the suture passer to access opposite sides of the wound effectively.
Solution Approach 2:
The pivotable mechanism introduces an angular dimension to the device configuration. By allowing the inner member to rotate or angle relative to the outer member, the device gains the ability to direct the suture passer at different angles through the tissue, providing access to opposite sides of the wound without requiring multiple separate devices.
Data Source
AI summary
A wound closure device includes outer and inner members. The inner member is configured for receipt of a suture passer and is pivotably coupled to the outer member. The inner member is pivotable relative to the outer member between a first position, wherein the inner member is coaxially disposed relative to the outer member, a second position, wherein the distal end of the inner member extends outwardly from the outer member in a first direction and the proximal end of the inner member extends outwardly from the outer member in a second, opposite direction, and a third position, wherein the distal end of the inner member extends outwardly from the outer member in the second direction and the proximal end of the inner member extends outwardly from the outer member in the first direction.