Quantitative Gas Anesthesia Device for Experimental Animals
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Solution Overview
Problem
Existing anesthesia methods for experimental animals lack precision and quantification, leading to inadequate anesthesia, increased animal suffering, and potential harm due to variable dosages based on animal weight and type.
Innovation Solution
A quantitative and precise gas anesthesia method and device utilizing an anesthetic fluid tank connected to a drainage tube with evenly spaced holes for catheters, a recycling container, and a switch, where the flow rate and dosage are calculated using a specific model to ensure precise delivery of anesthetic fluid to closed animal anesthetic tanks, allowing for targeted anesthesia based on animal type and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed dosage of anesthetic fluid is used for all animals, then the device complexity is reduced, but the anesthesia precision deteriorates due to inability to account for different animal weights and types
Solution Approach 1:
The anesthesia delivery system is segmented into multiple catheters (at least three catheters) that can be independently positioned in different closed tanks containing animals of different weights and types. Each catheter receives anesthetic fluid through a drainage tube with multiple holes, allowing separate dosage control for each animal group while using a single unified device structure.
Solution Approach 2:
The drainage tube is designed with multiple holes at different positions along its length, and the switch can selectively open or close different sections of the drainage tube. This dynamic control allows the operator to activate only the necessary catheter holes based on the number and type of animals being anesthetized, adjusting the effective dosage delivered without changing the overall device structure.
2Reliability
If the anesthetic fluid dosage is increased to ensure adequate anesthesia for all animals, then the anesthesia reliability is improved, but the loss of substance increases due to waste of anesthetic fluid
Solution Approach 1:
The system incorporates a switch that allows selective activation of different catheter holes in the drainage tube based on the actual number and type of animals being anesthetized. This feedback mechanism enables the operator to adjust which catheter outlets are active, matching the anesthetic fluid distribution to the actual experimental needs and preventing waste from unused animals.
Solution Approach 2:
Different sections of the drainage tube serve different functional purposes - some holes are positioned to serve smaller tanks while others serve larger tanks. The switch allows selective activation of specific local sections of the drainage tube, ensuring that anesthetic fluid is delivered only to the tanks that actually contain animals requiring anesthesia.
3Productivity
If multiple animals are anesthetized simultaneously using a single tank, then the productivity is improved, but the anesthesia precision deteriorates due to inability to control dosage for each animal
Solution Approach 1:
The system uses at least three separate catheters that can be independently positioned in different closed tanks, allowing simultaneous anesthesia of multiple animals in separate tanks. Each catheter can be controlled independently through the drainage tube with multiple holes, enabling precise dosage control for each animal while maintaining high productivity through parallel processing.
Solution Approach 2:
The drainage tube with multiple holes and the switch mechanism serve multiple functions simultaneously - they can deliver anesthetic fluid to different tanks through different catheters, control dosage for each tank independently, and allow selective activation based on experimental needs. This multi-functionality enables both high productivity and precise dosage control.
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 method ensures precise and efficient delivery of anesthetic fluid, minimizing waste and ensuring effective anesthesia for multiple animals simultaneously while adhering to medical ethics by calculating the exact dosage required for each animal, thus enhancing the reliability of experiments.
Implementation Method 1
defining T as the height difference between the level of the anesthetic fluid in the anesthetic fluid tank and water inlets of the catheters
Implementation Method 2
the anesthetic fluid enters the closed animal anesthetic tanks and volatilizes into gas to exert the anesthesia effect
Data Source
AI summary
The present invention belongs to the field of animal gas anesthesia, and provides a quantitative and precise gas anesthesia method and device for experimental animals. The quantitative and precise gas anesthesia device for experimental animals includes an anesthetic fluid tank, a drainage tube, catheters, closed animal anesthetic tanks, and a recycling container, where anesthetic fluid is put into the anesthetic fluid tank, the bottom of the anesthetic fluid tank is connected to an inlet of the drainage tube, a set of holes are evenly arranged in the drainage tube, each hole is connected to an inlet of each catheter, and outlets of the catheters extend into the closed animal anesthetic tanks.