In Vitro Tick Feeding System With Continuous Blood Heating
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Solution Overview
Problem
Current artificial tick feeding systems are inadequate for simulating the tick's host environment, as they fail to maintain the temperature and freshness of blood, leading to ticks not remaining attached, and there is a lack of a commercial in vitro tick life cycle feeding system for vaccine production and testing of tick-borne diseases.
Innovation Solution
A continuous flow in vitro tick feeding system with a feeding vessel, membrane, and fluid heater that maintains blood at host body temperature, allowing ticks to feed and deposit biological materials, which can be filtered and processed for vaccine production and research.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional bowl filled with blood and a membrane is used for tick feeding, then the system structure is simple, but the blood quickly cools and spoils causing ticks to detach
Solution Approach 1:
The patent transforms the static bowl system into a dynamic recirculating system where blood continuously flows through an external heating circuit. This dynamic approach maintains blood temperature throughout the feeding process, preventing the cooling and spoiling that occurs in static systems, thereby ensuring tick attachment stability.
Solution Approach 2:
The patent introduces an external heating circuit as an intermediary component between the blood reservoir and the feeding membrane. This intermediary system actively maintains blood temperature through continuous circulation and external heating, preventing direct thermal contact issues and ensuring consistent tick attachment conditions.
2Ease of operation
If a static bowl of blood is used for feeding, then the system is simple to operate, but the blood temperature drops and quality deteriorates over time
Solution Approach 1:
The patent implements continuous circulation of blood through the heating circuit, ensuring that blood is constantly renewed and heated during the entire feeding process. This continuous action prevents temperature drop and quality deterioration that occur in static systems, while the automated nature maintains operational simplicity.
Solution Approach 2:
The patent replaces manual monitoring and replacement of blood with an automated recirculating heating system. The mechanical circulation pump and temperature control system automatically maintain blood quality, eliminating the need for manual intervention while ensuring stable temperature conditions.
3Reliability
If a recirculating blood system with heating is implemented, then blood temperature and freshness are maintained, but the system complexity increases
Solution Approach 1:
The patent divides the blood maintenance system into separate functional modules: a blood reservoir, an external heating circuit, a circulation pump, and a feeding chamber. This segmentation allows each component to perform its specific function efficiently and enables independent maintenance or replacement of individual parts, reducing overall system complexity.
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
Enables standardized, quality-controlled, and economical pathogen harvesting throughout the tick life cycle, facilitating vaccine development and testing of tick-borne diseases, and can be adapted for other blood-feeding organisms.
Implementation Method 1
a fluid (preferably blood) circulating system that allows operators to continuously harvest the pathogens... maintains blood at host body temperature
Data Source
AI summary
The system includes a feeding vessel having an inlet, an outlet, and a membrane positioned across an opening in the vessel. Parasites (preferably ticks) are allowed to attach themselves to the membrane so that as a feeding fluid (preferably blood) is circulated through the vessel, the parasites feed on the feeding fluid through the membrane.