Diabetic Insulin Delivery And Monitoring Devices

Next Generation Insulin Delivery and Monitoring Devices Diabetes Mine Design Challenge -2009

Submitted by: Ganesan Murugesan1 & Sharath Pottala2 TATA ELXSI LIMITED IDE_Product Design-Healthcare ITPB Road, Whitefield, Bangalore-560048 Email: [email protected]

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Idea #1 Tooth shaped device for delivering insulin PROBLEM: Educated people from urban background can only operate the existing continuous insulin delivery device (wrapped around waist). It would be difficult for a rural/blind/uneducated/techno phobia person to operate the device rightly. The existing device delivers insulin to the subcutaneous tissue only and thereby actual dosage may not reach the blood.

Artificial tooth Insulin cavity

Channel to blood vessel

Blood vessel Tooth Device

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Advantages of this design in solving above problems : –Patients belonging to various categories such as rural, blind, uneducated and techno phobia can use this device. –The device does not incorporate high technology and is easy to use and understand –The insulin can be delivered at a constant rate –The insulin is delivered directly into the blood vessel, so actual amount of insulin is mixed with blood as compared to insulin injected in subcutaneous tissue –The device has less or no electronic gadgets for delivery of insulin

Details of this device : –The device is designed similar to the appearance of tooth and having similar dimensions of natural tooth. –Biocompatible material will be used –The device is placed next to the third molar teeth so it is safe and not visible –Insulin will be in high density semi solid form that will dilute with saliva,and there by enter into the blood vessel through the channel or the Insulin will melt by making use of body temperature –The device can be kept for a dosage limits required for 1 or 2 days or can be extended further –The device can be easily replaceable Further Improvement –Regulation of insulin delivery to the blood vessel can be done

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Idea #2 Stent based insulin delivery device

PROBLEM: Delivery of insulin to the subcutaneous tissue may not give the correct dosage to the blood. Frequent removal and insertion of the device could be difficult for older patients. The electronic gadgetry may be confusing for a set of population who are having muscular disorders

Advantages of this design in solving above problems: –The advantage of the device is that you can avoid carrying the cumbersome

insulin set up while traveling –The flow rate of insulin within the device can be adjusted according to the needs of the patient –Does not require repeated surgeries –Eliminating the process of recharging the device –Free from contact with outside environment

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Insulin reloading

Stent

Brachial

Function/Features of the device: –Device will be implanted around the artery of either upper or lower limbs. –The drug is coated/stored on the stent device that will gradually elute the drug into the arteries –At the site of implanted stent device, the device has a projection opening outside, that will be used for reloading the drug whenever necessary

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Idea #3 Self recharging Insulin pump

PROBLEM: The existing continuous insulin pump requires recharging of the device very often so as to keep the pump functioning. The regular charging of the device could not be feasible when there is power off. It may also be difficult for those people where there is minimal or no power supply, especially in rural areas.

Advantages of this design in solving above problems:




The current system makes use of the Faradays law of generating power by the vibration of the coils/terminals.




Self re-charging of the insulin pump; no need of external power supply to charge the device




Patients physiological and anatomical conditions will be utilized in generating the power

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Coils

Functions/Features of the device:


In this device, Faradays law-AC generating mechanism has been incorporated




The device has fixed magnet and vibrating coil inside.




Vibration of coil in magnetic field will help in generating power (Faraday’s Law)




Heartbeat and Walking motion will be used for vibrating the coils




The device will be placed either on the chest or in the abdominal area to sense the heart vibration

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Idea #4 Device for measuring the insulin produced by pancreas This device intended to measure the production rate of insulin which would help in knowing the diabetic level of the patient, Biosensor/MEMS device will be fitted on the pancreas for detecting the insulin production Advantages: 1.Prior information of the insulin level can be comprehended 2.Accurate information about the insulin levels 3.Continuous monitoring of Insulin level can be done without using blood samples

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Other ideas to make the existing insulin pump more user friendly

1. Device having radium sticker, so that the patient need not get panic in the night and it would be easy to locate the device

2. Device having torchlight to view the objects during night, so that patients can avoid panic in case of power supply failure Storage space (Flash memory) to keep the contact details of Doctors, pharmacy in case of emergency while traveling or at any remote place.

3. Loading games within the device so that the patient keeps himself busy while traveling and also keeps his mind happy

4. As per some of the findings, the blood sugar level is high/increases for

the patients who are under stress. Our device will have a music therapy inbuilt having various kinds of music that will make the mind relieve of stress.

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