Expandable Tissue Container with Guard and Cutter
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Solution Overview
Problem
Current minimally invasive tissue removal techniques, such as power morcellation, pose risks of spreading occult cancers during procedures like hysterectomies, and existing methods are inefficient and cumbersome, particularly when dealing with large tissue specimens.
Innovation Solution
A system and method for tissue capture and removal that involves an expandable tissue container with a deployable guard and cutter, allowing for safe and efficient processing of tissue specimens within a patient's body cavity through a vaginal approach, enabling the removal of larger specimens with reduced operative time and risk of cancer dissemination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power morcellation is used to remove large tissue specimens through small incisions, then minimally invasive benefits are achieved, but the risk of spreading occult cancers increases
Solution Approach 1:
The tissue specimen is divided into smaller segments through controlled cutting within the containment bag, allowing removal through small incisions while preventing spread of occult cancers. The segmentation occurs in a controlled manner within the sterile bag environment, isolating potential cancer cells during the division process.
Solution Approach 2:
A sterile containment bag serves as an intermediary between the tissue specimen and the patient's body cavity. The bag allows cutting and morcellation procedures to be performed while containing any potential cancer cells, thus mediating the harmful effect of cancer spread while enabling minimally invasive removal.
2Object-affected harmful factors
If manual morcellation is used to process tissue specimens, then cancer spread risk is reduced, but operative time and procedural efficiency increase
Solution Approach 1:
Manual mechanical morcellation is replaced with a powered cutting device that operates within the sterile containment bag. This substitution maintains the safety benefits of controlled containment while dramatically reducing the time required to process large tissue specimens, eliminating the lengthy manual cutting process.
Solution Approach 2:
The cutting process parameters are changed from manual operation to powered automated cutting. This allows for faster cutting speeds and more efficient tissue processing while maintaining the containment safety parameters, thus reducing operative time without increasing cancer spread risk.
3Reliability
If traditional open surgery is used to remove large tissue specimens, then complete specimen removal is achieved, but patient recovery time and surgical risk increase
Solution Approach 1:
The tissue specimen is placed inside a sterile containment bag, which is then introduced through a small incision into the body cavity. The cutting device is inserted through the same incision to perform morcellation within the nested bag structure. This nesting allows complete specimen removal through minimal incisions, achieving open surgery completeness with minimally invasive benefits.
Data Source
AI summary
Components, systems and kits for capturing and removing tissue from mammalian bodies include a tissue container that may be introduced into a body cavity and within which a tissue specimen may be placed, cut and removed from the body cavity. Methods of using these components, systems and kits are also described.