Trocar System with Drive Mechanism for Simultaneous Cannula Insertion
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Solution Overview
Problem
Existing trocar systems are time-consuming and costly due to the need for multiple incisions and cannula placements in surgical procedures, which is unsatisfactory for efficient and cost-effective surgical practices.
Innovation Solution
A trocar system with a handle, a trocar, and a drive system that includes a drive member and a biasing member to facilitate the forward movement of multiple cannulas in a longitudinal direction, allowing for simultaneous insertion and placement of cannulas in multiple incisions, reducing the need for repeated incisions and cannula placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple incisions and cannula placements are performed separately using traditional trocar systems, then each incision can be made precisely, but the surgical procedure becomes time-consuming and costly
Solution Approach 1:
The patent combines multiple separate incision and cannula placement operations into a single integrated trocar system. The trocar shaft contains multiple cannulas that can be simultaneously inserted through one incision site, merging what would traditionally require multiple separate procedures into a single operation, thereby improving surgical efficiency while maintaining precision
Solution Approach 2:
The trocar system is designed as a multi-functional device that can perform multiple cannula placements through a single incision. The universal trocar shaft accommodates various cannulas and implements, allowing it to serve multiple surgical functions simultaneously, reducing the need for multiple specialized instruments and procedures
2Reliability
If multiple separate trocar systems are used for multiple cannula placements, then each cannula can be properly positioned, but the cost and complexity of the procedure increases
Solution Approach 1:
Multiple cannulas are integrated into a single trocar shaft, combining what would require multiple separate trocar systems into one unified device. This reduces the overall complexity and number of components while maintaining the ability to properly position each cannula through the shared shaft structure
Solution Approach 2:
Multiple cannulas are nested within the trocar shaft, with each cannula positioned in a specific location along the shaft. This nested arrangement allows multiple functional elements to be contained within a single external structure, reducing device complexity while preserving individual cannula positioning capabilities
3Adaptability or versatility
If traditional separate incision methods are used, then each incision site can be optimized independently, but the overall surgical time and cost increase
Solution Approach 1:
The system merges multiple incision operations into a single incision site, eliminating the need to create and optimize multiple separate incision locations. While this reduces adaptability in terms of distribution across the body, it dramatically reduces surgical time by performing all cannula placements through one optimized incision site
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 system enables faster and more cost-effective surgical procedures by allowing multiple cannulas to be placed in a single trocar, reducing the time and cost associated with forming and maintaining incisions during surgical procedures.
Implementation Method 1
a biasing member connected to the drive member to bias the drive member against forward movement in the longitudinal direction
Data Source
AI summary
Systems and methods for using a trocar system are disclosed. The system generally includes a handle having a first end a second end, a trocar disposed adjacent the first end of the handle, a plurality of cannulas disposed on the trocar simultaneously, and a drive system. The drive system is disposed for forward movement of the cannulas in a longitudinal direction away from the first end of the handle.