Trocar Stabilization Dressing for MIS
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During minimal invasive surgery (MIS), trocars often dislocate, and there are challenges with maintaining sterility and preventing contamination, as existing solutions like balloon and Hasson trocars have limitations such as balloon rupture risks and cumbersome suture fixation.
Innovation Solution
A medical dressing with a backing layer, adhesive skin contact layer, and flanges that securely attach to the trocar cannula, providing stabilization without internal fixation or sutures, and an incision film to maintain sterility and prevent gas leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a balloon trocar is used to prevent trocar dislocation, then the trocar is anchored in the abdomen, but the balloon may rupture causing patient risks and cannot be simply removed
Solution Approach 1:
The patent removes the balloon component from the trocar system entirely. Instead of using a balloon for anchoring, the trocar is secured through adhesive application directly to the skin surface, extracting the problematic balloon element that could rupture while maintaining the anchoring function.
Solution Approach 2:
The adhesive securing method uses a disposable adhesive layer that is applied to the trocar and skin, providing reliable anchoring without the complexity and risks of reusable balloon components. The adhesive is designed for single-use and simple removal without rupture risks.
2Reliability
If a Hasson trocar with sutures is used to stabilize the trocar, then the trocar stays in place, but the system becomes cumbersome requiring suture fixation and stabilization
Solution Approach 1:
The patent replaces the mechanical suture fixation system with an adhesive bonding system. The adhesive layer chemically bonds the trocar to the skin surface, eliminating the need for mechanical sutures, needles, and complex stabilization mechanisms while maintaining reliable trocar positioning.
3Ease of operation
If traditional trocars are used without additional fixation, then the procedure is simple, but the trocar may dislocate during surgery
Solution Approach 1:
The adhesive layer is applied to the trocar before insertion into the patient's body. This preliminary application of the adhesive ensures that the trocar is pre-secured and cannot dislocate during surgery, while the application process itself remains simple and does not complicate the surgical procedure.
4Reliability
If the dressing is designed to secure the trocar firmly, then dislocation is prevented, but the attachment and detachment process becomes complex
Solution Approach 1:
The adhesive layer uses controlled adhesive strength parameters that provide firm fixation during surgery but allow for simple removal. The adhesive is formulated with specific bonding characteristics that ensure reliable anchoring under surgical conditions while permitting clean detachment without damage to skin or trocar when removal is needed.
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 dressing simplifies trocar handling, prevents dislocation and contamination, and allows flexible access to body cavities while ensuring safe and easy attachment and detachment, reducing surgical complications and improving procedural efficiency.
Implementation Method 1
an opposing proximal side provided with an adhesive skin contact layer
Implementation Method 2
a respective distal end portion configured to be adhesively attached to a trocar during use
Data Source
Figure 1a~1b
Figure 2a
Figure 2b
AI summary
The present disclosure generally relates to a medical dressing (100) for use in conjunction with a trocar (201). The present disclosure also relates to a trocar system (200) comprising the medical dressing (100). The dressing (100) of the present disclosure allows for a simple and facilitated means to operate and handle a trocar (201) during minimal invasive surgery (MIS).