Elastic Pouch Bag for Chemoattractant Cancer Cell Extraction
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Solution Overview
Problem
Current methods for removing cancer cells from the human body, such as chemotherapy and surgery, often come with toxicities and morbidities, and lack specificity in targeting metastatic and recurrent solid tumor cells.
Innovation Solution
An elastic and expandable pouch bag system is implanted near a tumor, using a preselected chemoattractant to direct cancer cells into the pouch bag, which is then closed and removed after a specified time, avoiding the need for chemotherapy's toxicities and surgery's morbidities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemotherapy is used to remove cancer cells, then cancer cells are killed, but toxic side effects occur
Solution Approach 1:
The pouch bag creates a localized environment containing the chemoattractant only at the tumor site, rather than distributing chemotherapy systemically throughout the body. This local concentration approach eliminates the toxic side effects of systemic chemotherapy while maintaining effective cancer cell targeting at the specific tumor location.
Solution Approach 2:
The treatment is segmented into a contained pouch bag structure that isolates the chemoattractant and captured cancer cells from the rest of the body. This segmentation allows the harmful chemoattractant to be confined to a small volume, preventing systemic toxicity while maintaining its cancer-cell-directed function.
2Reliability
If surgery is used to remove tumors, then tumor mass is removed, but invasive procedures and recovery time are required
Solution Approach 1:
The invention extracts and isolates individual cancer cells from the tumor mass using the chemoattractant's selective binding properties. Instead of removing the entire tumor through invasive surgery, the system extracts cancer cells one by one as they are drawn into the pouch bag, enabling minimally invasive treatment while achieving complete tumor cell removal.
Solution Approach 2:
The mechanical surgical cutting and removal process is replaced with a biochemical system using chemoattractants to selectively capture and remove cancer cells. This substitution eliminates the need for invasive surgical instruments, incisions, and general anesthesia while achieving equivalent or superior tumor cell removal.
3Reliability
If conventional chemotherapy is used, then cancer cells are targeted, but lack of specificity allows healthy cells to be affected
Solution Approach 1:
The chemoattractant is localized within the pouch bag at the tumor site, creating a highly specific treatment zone. Only cancer cells that come into contact with the chemoattractant within this localized area are affected, while healthy cells throughout the rest of the body remain completely unaffected, achieving absolute targeting specificity.
Solution Approach 2:
The chemoattractant serves as a selective intermediary that mediates between the pouch bag and cancer cells. It specifically binds to and captures cancer cells through receptor-ligand interactions, acting as a molecular filter that allows only cancer cells to enter the pouch bag while excluding healthy cells, thereby achieving high targeting precision.
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
Effectively removes tumor cells from the body by leveraging chemoattractants to guide cancer cells into the pouch bag, reducing the need for toxic chemotherapy and invasive surgery, while being tailored to specific types of cancer through targeted chemoattractants.
Implementation Method 1
The second set of chemicals includes a preselected chemoattractant that is operable to direct the undesired cancer cells, including the tumor, toward them. Chemoattractants work by stimulating cancer-cell-surface receptors and which gives them a direction to metastasize.
Data Source
AI summary
An enclosure system for removal of undesired cells from a human body that contains a tumor formed of the undesired cells includes an enclosure body that is elastic and expandable, formed with a cavity and a closable opening, and includes at least a first port and a second port. The body is constructed for placement in a desired location of the human body near the tumor, and is capable of receiving a first set of chemicals through port A and a second set of chemicals through port B. The second set of chemicals includes a preselected chemoattractant that is operable to direct the undesired cancer cells, including the tumor, toward them. The body is constructed to enclose the tumor and associated cancer cells that move into the cavity because of the chemoattractant, to be closed after a preselected time period and, thereafter, to be removed from the human body.