REUSABLE PREGNANCY TEST KIT
Zunaidah Mat Daud · 2006
The Reusable Pregnancy Test Kit is a device that is can be used to detect early pregnancy. Nowadays, the existing pregnancy test kits that available in market are disposable and must discarded after one time of usage. The purpose of this project is to invent a reusable pregnancy test kit regarding to overcome that limitation. One method to validate the pregnancy by the presence of one hormone in the urine or blood called Human Chorionic Gonadotropin (hCG). Twolines will appear on the kit for the positive result and one line for the other negative result. The characteristic of the chemical sensor is not reusable. However there is no electronics sensor that can be used to detect that hormone directly from the urine like the chemical sensor's function. But to make the kit to works for several time, this project proposed a sensor that can detect the pH of urine and can be used for severaltimes. The pH value ofthe pregnancy urine is quite difference with the normal urine. The aim of using sensor is to produce electrical signal being proportional to the pH of the urine. After detecting the different level of pH, the sensor will give the output based on thepHvalue thatdifferentiates the pregnancy urine withthe normal urine.