Safety Isolation Bag with Non-Return Valves for Morcellation
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Solution Overview
Problem
Existing isolation bags for laparoscopic surgeries are complex to use, require multiple steps, and pose risks of tissue spillage and accidental punctures during power morcellation procedures, leading to increased procedural time and potential complications.
Innovation Solution
A safety isolation bag with a multilayered, flexible construction and non-return valves attached with long looped threads and tubular guides, designed for easy insertion and closure, to prevent gas leakage and accidental punctures, facilitating the safe removal of bulky specimens through minimally invasive techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional isolation bags are used for power morcellation, then tissue removal can be achieved, but the risk of tissue spillage and accidental punctures increases
Solution Approach 1:
The patent applies beforehand cushioning by providing a multilayered construction (inner layer, intermediate layer, and outer layer) where each layer acts as a protective barrier. The intermediate layer specifically serves as a cushioning layer that prevents tissue spillage and accidental punctures, creating a safety buffer before harmful events can occur.
Solution Approach 2:
The patent utilizes flexible shells and thin films through the use of multiple flexible layers (inner layer, intermediate layer, outer layer) that can deform and adapt during the surgical procedure. These flexible layers maintain containment while allowing for instrument insertion and tissue manipulation, reducing the risk of rupture and spillage.
2Reliability
If complex isolation bag designs are used, then safety features are improved, but procedural time and operational complexity increase
Solution Approach 1:
The patent merges multiple safety functions into a single integrated multilayered bag structure. The inner layer, intermediate layer, and outer layer work together as one unified containment system, eliminating the need for multiple separate devices or complex assembly steps, thus reducing procedural time while maintaining comprehensive safety features.
Solution Approach 2:
The multilayered isolation bag serves multiple functions simultaneously: containment of tissue, prevention of spillage, protection against punctures, and facilitation of instrument insertion. This multi-functionality eliminates the need for multiple separate devices, simplifying the procedure and reducing time loss.
3Ease of operation
If multiple punctures are made in the isolation bag during surgery, then instrument access is improved, but the risk of leakage and contamination increases
Solution Approach 1:
The patent employs flexible shells and thin films that can elastically deform to accommodate multiple instrument insertions. The flexible multilayered structure allows trocars and other instruments to pass through while maintaining sealing integrity, preventing gas and fluid leakage even with multiple punctures.
Solution Approach 2:
The patent uses composite materials in its multilayered construction where each layer has specific properties that contribute to overall performance. The combination of different materials provides both flexibility for instrument access and impermeability to prevent leakage, resolving the contradiction between ease of operation and reliability.
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 safety isolation bag simplifies the procedure, reduces the risk of tissue spillage and accidental punctures, and minimizes procedural time by providing a leak-proof and easy-to-use solution for power morcellation and vaginal morcellation, enhancing surgical safety and efficiency.
Implementation Method 1
soft and flexible non-return valves made of biocompatible/medical grade plastic material for the insertion of instruments during laparoscopic surgery
Implementation Method 2
safety isolation bag, a pneumoperitoneum device for intra-abdominal, endoscopic procedures
Data Source
AI summary
A safety isolation bag is a pneumoperitoneum device for intra-abdominal, endoscopic procedures, power morcellation and vaginal morcellation for facilitating safe removal of body mass from within the abdominal cavity. It comprises of an expandable and collapsible enclosed internal space (5) having a neck portion (4) with mouth (3) having retractor means (2) and provided with markings, colour coded indicating how much the bag is to be pulled out for the removal of large, medium and small tissue mass, and also having one or more non-return valves (6) attached with long looped threads (8) on one of the surface in the wall of the safety isolation bag below the neck as a means for introducing the surgical instruments and accessories into the enclosed internal space at the right place and to close the puncture hole after the procedure. It is made of one or more layers of flexible biocompatible/medical grade plastic film.