In a small SPF animal room laboratory, have you ever been forced to put your experimental record book on the floor and remove the cage cover with both hands to take out the animal because you can't free your hands to take out the cage?

——"Not only do you have to remove the cover of this cage, you also have to remove the iron mesh to take the animal out. It's too complicated!"

When the power suddenly went out in the laboratory, the life window on the cage cover could not meet the ventilation needs of the animals. When they were found, the animals were already dying and crying for help.?

"The cage's life window is too narrow, and emergency ventilation is useless. The animals suffer, and the experiment is in vain!"

When you need to change the bedding or add feed, do you have to stand on tiptoe, bend over, or even bring a ladder because the cage is too high? You are always worried that the cage will fall.?
"The cage design only considers space utilization, not the experimenter's waist! If this continues, the lumbar intervertebral disc will become more 'protruding' than the experimental data shows!"

In the field of experimental animal breeding, the pain points of traditional IVC cages have long been an "open secret" among researchers:

1. Emergency ventilation is difficult to ensure: The narrow life window makes it difficult for animals to breathe freely during power outages. If the power outage lasts too long, the animal's life safety will be threatened, and even cause death.
2. Poor animal welfare: cramped enclosures restrict animal movement, which can lead to stereotyped behaviors (such as circling and biting), directly affecting the stability and reliability of experimental data.
3. Low operating efficiency: The high cage box design makes the cage frame too high, which violates ergonomics. Long-term tiptoeing operation not only increases the risk of occupational strain, but also makes the experimental process inefficient and dangerous.


Today, we come with the answer!
Yuyan Instruments' newly launched IVC cage has five key designs that directly address the weaknesses of traditional cages:

Large life window: "safety window" in power outage crisis
The emergency ventilation design of traditional cages is often ineffective - the narrow life window cannot meet the animal's breathing needs during a power outage, which can cause stress in the animal at best and suffocation and death in the worst. Yuyan Instrument uses a square, fully open life window design, which uses almost half of the cage cover area as a life window. The window area is three times larger than traditional products. Even in the event of an unexpected power outage, the high-efficiency filter membrane can be opened to achieve rapid convection of air inside and outside the cage:

Animal health protection: In emergency situations, the carbon dioxide concentration in the cage can be reduced to below the safe threshold through gas exchange through the filter membrane, avoiding animal death or health damage caused by lack of oxygen;
2. Experimental continuity protection: Before power is restored, the life window can maintain the basic living conditions of animals, minimizing the risk of experimental interruption;
3. Humanized operation: No complicated tools are required, and the experimenter can open the window and replace the filter membrane with one hand, saving valuable time during the tense experiment process.

Low cage design: making high-level operations “within reach”
In order to maximize space utilization, traditional cages often exceed 1.8 meters in height, forcing researchers to stand on tiptoe or use ladders to operate the upper cages. This is not only inefficient but also poses a risk of falling. Yuyan Instruments uses a half-width mesh to lower the cage height without affecting the animal's activity space, reducing the overall cage height by 20%. Researchers can easily reach all levels without bending or raising their arms. The benefits of this change go far beyond "saving effort":

1. Occupational health protection: Reduce the risk of repetitive strain injuries, especially suitable for breeders who need to stand for a long time;
2. Enhanced spatial adaptability: low cages are more adaptable to laboratory height requirements and facilitate the use of laboratory top space.

“Before, after operating the upper cages every day, my shoulders were so sore that I couldn’t lift them. Now I can complete all operations while standing.” This feedback from an animal house manager reveals the true value of the low-slung design for front-line workers.

Extra large bottom area: animals can move freely
Small spaces are the main cause of animal stereotyped behaviors (such as circling and biting), which directly affects the reliability of experimental data. Yuyan Instruments has increased the bottom area of the cage to 0.25㎡, creating a more natural behavioral environment for animals:

1.Behavioral improvement: A larger activity space can reduce the incidence of most stereotyped behaviors;
2. Optimization of physiological indicators: The experimental mice live more comfortably in a spacious environment and are closer to a "healthy model";
3. Improved cleaning efficiency: After the bottom area is expanded, the bedding is distributed more evenly, reducing clumping.

Large-capacity supply at both ends: Say goodbye to "frequent resupply"
In traditional cages, water bottles and feeding troughs are often concentrated on one side, causing animals to compete for space when drinking and eating, and the capacity is limited and needs to be changed daily. Yuyan cages adopt a dual-end independent supply design:

1. Doubled capacity: The trough capacity is expanded to 200g, meeting multi-day supply needs;
2. Reduced behavioral interference: The dual-end layout prevents animals from gathering and competing for food and water, and provides a more balanced distribution of food and water;
3. Reduced contamination risk: The independent feeding trough design can prevent feed from being contaminated and reduce the growth of microorganisms.

Half-width iron screen: one-handed operation efficiency is further improved
The iron screen of traditional cages requires two hands to remove, which is tedious and easy to scratch your hands. The upgraded half-width iron screen of Yuyan Instruments does not need to be removed separately when taking out the animal. You only need to press the buckle with one hand to remove the cage cover to take out the animal:

1. Improved operational efficiency: The time required to capture an animal is reduced to less than 10 seconds, without the need to remove the cage mesh.
2. Reduced animal stress: Rapid opening and closing reduces animal exposure time and significantly increases the success rate of catching;
3. Safety upgrade: The curved edge design avoids scratches and complies with biosafety laboratory operating regulations.

Technical endorsement: authoritative certification and detailed polishing

01.Quality Assurance
Passed third-party testing by an authoritative organization, the material complies with GB 14925 standards for experimental animal environments and facilities.

02.Press buckle
The buckle is a push-type design, which can be unlocked with just a light press. It can be operated with one hand, and one person can easily pick up the animal without the help of others.

03. Leading technology
One-piece molding technology, seamless splicing process, high temperature resistance and no deformation.

Four reasons to choose Yuyan IVC

01. Imported raw materials

Yuyan Instrument cages are made of superior raw materials without adding any miscellaneous materials, waste materials, or second-hand materials, ensuring that each cage is a clear amber color. No toxic or harmful substances evaporate from the cage, causing no additional impact on the physiological state of the animal, and the experimental results are more accurate.


02. Factory disinfection
During the manufacturing process, cage ventilation ducts generate a lot of dust, debris, and other foreign matter that can harm the health of mice. These foreign matter hides in invisible corners, posing a hidden threat to the living environment of experimental animals. Yuyan Instrument cages are factory cleaned and disinfected, undergoing a series of processes including degreasing, acid cleaning, water washing, and nitrogen blowing to ensure that the inner walls of the ducts are clean and free of residue.


03.Computer remote control
Want to operate the control instrument when you are not in the lab? No need to call for help. Use the Yuyan IVC computer control terminal to remotely access the control equipment, alarm logs, and adjust parameters with one click. The software interface is consistent with the host computer, and no additional learning is required.

04. Leading technology
Industry-leading injection molding assembly technology, processed by imported equipment, from large cage boxes and cage racks to small buckles and hangers, the edges are burr-free, and the buckle surface is frosted, non-slip and skin-friendly, so gloves will never be scratched inexplicably again.

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Further Reading

Animal Guardian | How IVC Cages Improve the Quality of Life of Laboratory Animals

Technical Analysis - How IVC Cages Protect Your Animals' Health

New Arrival | Yuyan IVC Cage for Rats and Mice - The Guardian of Modern Animal Laboratories

Self-developed core creates extraordinary strength

Shanghai Yuyan Scientific Instrument Co., Ltd., as a leading manufacturer of scientific research equipment in the industry, has been adhering to the core concept of "innovation-driven development and self-research to create high-quality products" for 15 years since its establishment in 2010. It is committed to the independent research and development and production of scientific instruments. Its current product line covers multiple scientific research and application fields such as experimental animal husbandry, physiological signal acquisition, and neuroscience research. Not only does it continuously optimize and upgrade conventional instruments, but it also dares to explore cutting-edge technologies and has launched a series of high-end scientific instruments with independent intellectual property rights.
The company's R&D personnel account for 40%, and it has a team of scientists in sensors, chip design, core algorithms, etc., and has professional teams to provide support in product implementation and operation, market and academic promotion, comprehensive product solution design and application. The company has service points covering the whole country and strong technical service capabilities. Its customers include Tsinghua University, Peking University, Zhejiang University, Shanghai Jiaotong University, University of Chinese Academy of Sciences, West China Hospital of Sichuan University, Northern Theater Command General Hospital and other first-class research institutions and hospitals at home and abroad.