Introduction
The document discusses a patented device, "Pseudopregnant mouse and rat production device ~EGET~," which facilitates the production of pseudopregnant animals without the need for vasectomized males. This innovation simplifies the process of producing offspring from transplanted fertilized eggs, reducing the number of animals used and the time required.

Specifications
The EGET device is battery-powered and designed for use with mice and rats. It comes in different sizes for mice (φ3.5mm×L27mm and φ4.0mm×L27mm) and has an insertion part dimension of φ5.0mm×L27mm. The device is intended for 750 uses, with a standard stimulation frequency of 30 seconds, 7 times for mice, and 3 times for rats.

Usage and Limitations
The device is expected to last for one year or 100 uses for mice and 250 uses for rats, based on the standard stimulation frequency. Users are advised to comply with local disposal regulations or return the product for proper disposal. The device's functionality is time-sensitive, and users should adhere to the specified usage limits.

Recommendations
Users are encouraged to stabilize their technique to potentially reduce the number of stimulations required. Detailed usage instructions are available on a buyers-only page.

Manufacturing and Licensing
The EGET device is manufactured and sold by Natsume Seisakusho Co., Ltd. under a patent license agreement. The inventor is Professor Takehito Kaneko from Osaka Metropolitan University, formerly of Iwate University, and the Institute for Animal Reproduction.

Conclusion
The EGET device represents a significant advancement in the field of animal reproduction, offering a more efficient and ethical method for producing pseudopregnant animals.