Wirelessly Controlled Implantable System for On-demand and Pulsatile Insulin Administration.

Area of Science:

• Biomedical Engineering
• Medical Devices
• Diabetes Technology

Background:

• Current insulin delivery methods present challenges in convenience and safety.
• There is a need for advanced systems offering on-demand and pulsatile insulin administration.
• Existing strategies may lack precise control and safety features to prevent overdose.

Purpose of the Study:

• To develop and evaluate a wirelessly controlled implantable system for on-demand, pulsatile insulin delivery.
• To enhance convenience and safety in insulin therapy compared to current strategies.
• To create a system with integrated safety features to prevent insulin overdose.

Main Methods:

• Development of a magnetically driven pump (MDP) implantable system with a plunger, barrel, and drug reservoir.
• Integration of an external control device (ECD) and a mobile application for wireless control.
• Implementation of safety features within the mobile app to restrict insulin dosage and administration schedules.
• In vivo testing of the system in diabetic rats to assess insulin plasma concentration and blood glucose levels.

Main Results:

• The magnetically driven pump (MDP) demonstrated highly reproducible insulin infusion.
• The system prevented insulin infusion when pre-set safety restrictions were violated.
• In diabetic rats, the system achieved insulin plasma concentration and blood glucose profiles comparable to subcutaneous insulin injections.

Conclusions:

• The proposed wirelessly controlled implantable system offers a promising, safer, and more convenient approach for on-demand, pulsatile insulin delivery.
• The integrated safety features effectively prevent insulin overdose, enhancing patient safety.
• The system's efficacy in regulating glucose levels in diabetic rats suggests its potential for human application in diabetes management.