In the field of inhalation toxicology and efficacy evaluation, rodent endotracheal exposure technology has attracted much attention due to its ability to bypass the nasal airway for lung specific administration. The PreciseInhale rodent endotracheal exposure module developed by Swedish Inhalation Science Company (ISAB) has become the standard equipment in this field with its innovative design and technological breakthroughs.

　　1、 Precise dose control to reduce experimental bias

This module adopts a single animal independent exposure design, combined with a high-precision aerosol generator, to ensure that the standard deviation of lung deposition dose is less than 10%. Compared to traditional "tower" exposure systems, its single exposure dose consistency is significantly improved, meeting the requirements of the 3R principle (reduce, optimize, replace) for animal welfare. For example, when studying the pulmonary toxicity of nanoparticles, the exposure dose of each rat can be precisely controlled to avoid experimental errors caused by dose differences.

　　2、 Low sample size requirement to improve experimental efficiency

The module supports aerosol testing with extremely low sample sizes, significantly reducing experimental costs. Through endotracheal intubation technology, aerosols can directly enter the lungs without relying on animal self inhalation, reducing sample waste and improving drug delivery efficiency. In drug development, this feature is particularly suitable for the early toxicity assessment of expensive new inhalation formulations, such as nanomedicines or biologics.

　　3、 Full process dynamic monitoring to ensure data reliability

The module integrates aerosol concentration sensors and animal respiratory pattern monitoring functions, which can record key parameters during the exposure process in real time. For example, when evaluating the pharmacokinetics of a novel inhaled antibiotic, the system can simultaneously collect Cmax, t1/2, and lung retention data from plasma and lung tissue, providing multidimensional pharmacological evidence for drug development. In addition, the full monitoring function can promptly detect equipment abnormalities and avoid data deviations caused by operational errors.

　　4、 Refined drug administration to reduce animal stress

The PreciseInhale aerosol generator optimizes atomization energy output to ensure uniform distribution of aerosol particles without damaging animal lungs. Compared to traditional methods, its milder administration significantly reduced animal stress responses and improved the biological relevance of experimental data. In the construction of chronic obstructive pulmonary disease (COPD) models, this low-pressure exposure environment helps to simulate human pathological states more realistically.

　　5、 Complete data report, accelerate scientific research process

The module can automatically generate a complete experimental report containing plasma and lung pharmacokinetic (PK) parameters, Cmax, t1/2, and pulmonary retention substances. This feature significantly reduces the data processing time for researchers, allowing them to focus more on result analysis and mechanism research. For example, in the development of inhaled vaccines, researchers can quickly evaluate the deposition efficiency and immunogenicity of vaccines in the lungs through this module, providing key evidence for preclinical research.

The PreciseInhale rodent endotracheal exposure module provides an efficient and reliable solution for inhalation toxicology and efficacy evaluation research through its precise dose control, low sample volume requirements, dynamic monitoring capabilities, and complete data reporting capabilities. With the increasing demand for inhalation formulation research and development, this module is expected to play a greater role in drug safety assessment, environmental pollutant toxicity research, and other fields.