Specimen Bag Segmentation for Minimizing Tissue Spillage
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Solution Overview
Problem
Current surgical methods for removing large tissue specimens through small incisions are inefficient, time-consuming, and risky, particularly when dealing with calcified tissues, as they require excessive manipulation and can lead to tissue spillage and cancer cell dissemination.
Innovation Solution
A specimen bag system with integrated tissue segmentation components, including wire loops and a return electrode, that allows for quick connection and activation of segmentation devices within the bag, reducing the need for multiple instrument handling and minimizing incision site exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional surgical methods are used to remove large tissue specimens through small incisions, then the incision size can be minimized, but the procedural time increases and tissue spillage risk increases
Solution Approach 1:
The tissue specimen is segmented into smaller pieces using wire loops and cutting mechanisms inside the specimen bag, allowing the bagged tissue to be removed through a small incision without requiring the entire specimen to pass through the incision intact
Solution Approach 2:
The specimen bag is deployed and positioned at the incision site before tissue removal begins, and the tissue is segmented within the bag during the removal process, preparing the tissue for extraction through the small incision in advance
2Device complexity
If traditional surgical methods are used to remove large tissue specimens, then the equipment complexity can be reduced, but the risk of tissue spillage and cancer cell dissemination increases
Solution Approach 1:
The specimen bag contains the tissue specimen throughout the removal process, with wire loops and cutting mechanisms nested within the bag to segment the tissue without exposing it to the external environment, preventing spillage and cancer cell dissemination
Solution Approach 2:
The specimen bag acts as an intermediary containment structure between the tissue specimen and the external surgical field, allowing segmentation to occur within the sealed bag and preventing direct contact between the tissue and the surgical environment
3Device complexity
If multiple instrument handling is used for tissue segmentation, then the device complexity can be reduced, but the incision site exposure time increases
Solution Approach 1:
Multiple functions (containment, segmentation, and removal) are merged into a single integrated specimen bag system with built-in wire loops and cutting mechanisms, eliminating the need to handle multiple separate instruments and reducing incision site exposure time
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
Facilitates safer, more efficient tissue segmentation and removal by allowing for precise cutting within the specimen bag, reducing procedural time and minimizing the risk of tissue spillage and cancer cell spread.
Implementation Method 1
measuring electrical conductivity between the first and second electrodes; and determining a presence of a leak in the containment barrier based on a calculation using properties of the one or more volumes of fluid, the containment barrier, and the measured electrical conductivity
Data Source
AI summary
A method and device for detecting leaks of a containment barrier. The method may comprise placing the barrier in contact with one or more volumes of fluid such that the one or more volumes of fluid is in contact with a first surface and a second surface of the containment barrier, then placing a first electrode in contact with a first volume of fluid within in a first area defined by the first surface of the containment barrier. The method may then comprise placing a second electrode in contact with a second volume of fluid in a second area defined by the second surface of the containment barrier, measuring electrical conductivity between the first and second electrodes; and determining a presence of a leak in the containment barrier based on a calculation using properties of the one or more volumes of fluid, the containment barrier, and the measured electrical conductivity.