Differential Dissecting Instrument Tissue Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current blunt dissection techniques in surgery are time-consuming and risk-prone, as they struggle to differentially separate soft tissues from firm tissues without disrupting critical structures like blood vessels or nerves, often leading to accidental damage and complications.
Innovation Solution
A differential dissecting member with a tissue-facing surface featuring an alternating series of valleys and projections, designed to disrupt soft tissues while avoiding firm tissues, allowing for precise separation by leveraging the mechanical differences between tissue types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sharp dissection is used to cut through tissues, then cutting efficiency is improved, but the risk of accidental damage to critical structures increases
Solution Approach 1:
The dissecting instrument features a differentiated surface with both sharp regions (for cutting resistant tissues) and blunt regions (for safely separating soft tissues). This local quality variation allows the single instrument to perform multiple dissection functions with different safety profiles depending on the tissue type being encountered.
2Reliability
If blunt dissection is used to separate tissues, then safety against accidental cutting is improved, but the time required for dissection increases
Solution Approach 1:
The dissecting surface is segmented into multiple functional zones including sharp edges, blunt surfaces, and textured regions. This segmentation allows the surgeon to efficiently cut through tough tissues with sharp edges while using blunt surfaces for safer separation of soft tissues, reducing overall dissection time compared to using blunt instruments alone.
3Device complexity
If a single dissection technique is used for all tissue types, then device simplicity is maintained, but the ability to differentially separate soft and firm tissues is reduced
Solution Approach 1:
The dissecting instrument integrates multiple dissection techniques (sharp cutting, blunt separation, and textured friction-based separation) into a single multi-functional device. This allows the instrument to adapt to different tissue types and dissection requirements without requiring multiple separate instruments, maintaining simplicity while enhancing versatility.
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 differential dissecting member automatically differentiates between soft and firm tissues, reducing the risk of damage to critical structures and simplifying the surgical process by enabling more efficient and precise dissection.
Implementation Method 1
The at least one valley edge is configured to engage fibrous components of the complex tissue to disrupt the complex tissue
Implementation Method 2
The differential dissecting member sweeps along a direction of motion to disrupt soft tissues while avoiding firm tissues
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3C
AI summary
A differential dissecting instrument for differentially dissecting complex tissue is disclosed. The differential dissecting instrument comprises a handle and an elongate member having a first end and a second end, wherein the first end is connected to the handle. The differential dissecting instrument comprises a differential dissecting member (2800) configured to be rotatably attached to the second end and further comprises at least one tissue engaging surface (2850). The differential dissecting instrument comprises a mechanism configured to mechanically rotate the differential dissecting member around an axis of rotation (2830), thereby causing the at least one tissue engaging surface to move in at least one direction (2840) against the complex tissue. The at least one tissue engaging surface (2850) is configured to selectively engage the complex tissue such that the at least one tissue engaging surface disrupts at least one soft tissue in the complex tissue, but does not disrupt firm tissue in the complex tissue.