Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

A device and a method are disclosed for collecting and culturing fish embryos and evaluating combined toxicity of thiamethoxam and tetraconazole. An embryo collection component and an embryo culture component are provided on a base plate. The embryo collection component includes a collection tray detachably connected to a bottom of a culture tube. The embryo culture component includes a cavity plate with a stopper inside and a top plate provided with a culture well. A bottom of the culture well is provided with a leakage hole; and after the top plate is installed into the cavity plate, the stopper occludes the leakage hole. The new device is used to carry out the combined toxicity effect test of thiamethoxam and tetraconazole on zebrafish embryos, which can be used to avoid development of pesticide mixtures that have a good preventive effect but pose increased toxicity risk to the ecological environment.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

Systems for the treatment and prevention of pelvic dysfunction are provided. In one embodiment, a vaginal dilation device includes a handle portion and a shaft portion. The shaft portion is configured to expand from a collapsed configuration to an expanded configuration. The shaft portion can include a distal tip region, a spine region, and a distal arm region connecting the distal tip region to the spine region. The spine region can extend distally from the handle portion to the distal arm region, and can be generally tubular in shape. The distal arm region can be generally conical in shape and be configured to provide a gradual increase in diameter from the distal tip region to the spine region. Methods of use are also provided.

A vaginal dilator is provided having a handle which is removably engageable with a base of any one of a plurality of dilators using complimentary connectors connecting the base of each dilator to the handle. Thereby allowing for adjusting the size of the device. A flexible skeletal body may be included within a cavity of the dilator.