Ghusl with Glucose Sensor?

Assalamu Alyakum, I am writing with deep concern and would sincerely appreciate a clear ruling according to the Ḥanafī madhhab, as this matter is causing me significant anxiety. I am diabetic, with a condition that is described as a combination of Type 1 and Type 2 diabetes. For the past 7 years, I have been using a continuous blood glucose monitoring system called FreeStyle Libre. This is a small sensor that is inserted under the skin of my upper arm and continuously records my blood glucose levels 24/7. My medical team depends on this detailed data to monitor patterns and adjust my insulin dosage. My diabetes is currently well controlled using this method. Each sensor works for 2 weeks, and I receive 2 per month. Once applied, it cannot be removed and reapplied. If I were to take it off, I would have to replace it with a new sensor. Because the sensor adheres to the skin and covers a small area, water does not reach the skin directly beneath it during ghusl. My question is: would my ghusl be valid in this situation? I am extremely worried about the validity of my purification and prayers. If using this device presents a problem from a fiqh perspective, the only alternative would be to return to finger-prick testing. However, that method provides only isolated snapshot readings at the moment of testing, rather than continuous and comprehensive data. As a result, it does not offer the same level of insight into daily fluctuations in blood glucose levels. Although I have not undertaken a detailed comparison with my medical team, this continuous monitoring system has been relied upon for years to guide precise insulin adjustments and maintain stable control. I am therefore genuinely concerned that reverting to finger-prick testing alone could compromise the quality of my glucose management and, in the long term, negatively affect my health. JazakAllah Khayrun