Hi Mayra! Welcome to planDisney. Thank you for trusting us with such an important question. I can certainly understand why you're thinking ahead, and I'm happy to share what I know so you can feel as prepared as possible before your family's Disneyland Resort visit.
The first consideration is
Disneyland Resort's stroller policy. Strollers must be no larger than 31" (79 cm) by 52" (132 cm). In addition, the
Disneyland Resort Rules prohibit "any trailer-like object that is pushed, pulled or towed by an Electric Conveyance Vehicle, wheelchair, stroller, or person." If your stroller and any attached seating accessory comply with those guidelines, they may be permitted for use.
That said, the final determination is always made by the
Security Cast Members stationed at the Disneyland Resort entry points and the Downtown Disney District. They are responsible for evaluating the safety and security of items brought into the Resort, including strollers and any attached accessories. Because your question involves a specific piece of equipment that supports your daughter's medical needs, I recommend speaking with a Security Cast Member when you arrive. They are the best resource for determining whether your particular setup meets the Resort's guidelines.
I also encourage you to familiarize yourself with the locations of the
First Aid Centers in both Disneyland Park and Disney California Adventure Park before your visit. While I hope you never need them, it's always reassuring to know where they are should your daughter require assistance during the day. If her blood sugar drops while you're enjoying the parks, don't hesitate to let the nearest Cast Member know that you need help. They're there to assist Guests and can help direct you to the appropriate resources.
Mayra, I hope this information helps you feel more confident as you prepare for your family's visit. If any other questions come up along the way, please stop by planDisney again. We'd be delighted to help.
May your visit be filled with magical moments, peace of mind, and wonderful family memories.
David