Tissue Retraction Device With Alignment for Clearer Dissection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current medical procedures for extracting target tissue, such as cancerous lesions, are inefficient and time-consuming due to poor visualization and obstruction of dissection tools, necessitating a device that improves visualization and mitigates tissue obstruction.
Innovation Solution
A tissue retraction device and delivery system comprising engagement members, elastic members, and alignment members that allow for the lifting and retraction of target tissue, enabling clear visualization and efficient dissection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If tissue is retracted and lifted during dissection, then visualization is improved and tissue obstruction is reduced, but device complexity increases
Solution Approach 1:
The tissue retraction device is divided into multiple independent components: a first engagement member with first elastic member for retraction, a second engagement member with second elastic member for lifting, and alignment members for positioning. Each component performs a specific function, allowing the system to achieve improved visualization through tissue retraction while managing complexity through functional segmentation.
Solution Approach 2:
The alignment members are disposed within the engagement members, with the first alignment member positioned within the first engagement member and the second alignment member positioned within the second engagement member. This nested configuration allows multiple functional elements to be integrated in a compact arrangement, improving visualization capability without proportionally increasing device complexity.
2Object-generated harmful factors
If multiple engagement members and elastic members are added to enable tissue retraction and lifting, then tissue obstruction is reduced, but device complexity increases
Solution Approach 1:
The device separates tissue manipulation functions into distinct engagement members: the first engagement member with its elastic member handles retraction, while the second engagement member with its elastic member handles lifting. This segmentation eliminates tissue obstruction by addressing it from multiple directions independently, while keeping each component relatively simple in design.
Solution Approach 2:
Elastic members serve as intermediaries between the engagement members and the tissue. The first elastic member mediates the retraction force, while the second elastic member mediates the lifting force. These intermediary elements enable effective tissue manipulation to reduce obstruction while maintaining simpler engagement member structures.
3Reliability
If alignment members are included to prevent folding of elastic members, then reliability is improved, but device complexity increases
Solution Approach 1:
The alignment members are nested within the engagement members, with the first alignment member positioned within the first engagement member and the second alignment member positioned within the second engagement member. This nested arrangement provides structural support to prevent elastic member folding while maintaining a compact integrated design, improving reliability without adding significant device complexity.
Solution Approach 2:
The alignment members serve a dual function: they provide structural alignment to prevent elastic member folding, and they are automatically positioned within the engagement members during device assembly. This self-positioning capability improves reliability by ensuring proper alignment while reducing the complexity of assembly and positioning mechanisms.
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 enhances procedural efficiency by providing unobstructed views and facilitating the retraction of dissected tissue, thereby improving the overall effectiveness of medical procedures like Endoscopic Submucosal Dissection (ESD) and Peroral Endoscopic Myotomy (POEM).
Implementation Method 1
a first elastic member disposed between the first and second engagement members... the elastic member is designed to shift from a first position to a second elongated position
Data Source
AI summary
Medical devices and methods of using medical devices are disclosed. An example tissue retraction device includes a first engagement member having a first end and a second end, a second engagement member having a first end and a second end, a first elastic member attached to the second end of the first engagement member, and a first alignment member having a first end, a second end and a lumen extending therethrough. Further, the tissue retraction device has a first length, the first alignment member has a second length, the first elastic member extends within the lumen of the first alignment member and the second length of the first alignment member is less than or equal to the first length of the tissue retraction device.