5 months of attachment

Wednesday, April 12, 2006

23th DaY of AtTaChMent

Had a 2-hours training with a vendor, IDS Medical, on syringe drive, MS16A and MS26. There are two types of syringe drive which cater the different needs of the patients. They are two very simple devices as they only consist of a small PCB board. One is for daily rate while the other is for hourly rate. Both of them have the same function which is injecting certain amount of insulin or some antibiotics at a known rate in mm. You must be how to convert the ml to mm? There is a meter located at the bottom left of the device. The recommended type of syringe range is 12ml to 35ml and type of battery is 9V energizer and duracell. These 2 battery brands are strongly reccomended due to their longlasting lifespan as the patient required to wear the device for days. By the way, it is a ambulatory device. The trainers talked about the application and technical area of it.

For applications, she talked about the function which is injecting at certain rate as some patients required to take certain amount of insulin or antibiotics every few hours. Therefore, this device is used to save the hassle. The disadvantage is that there is no control of the number of times that the patient press the boost button for MS26 device and it will pump at a certain rate. However, the pumping of solution can be stopped after a certain number of times that the patient pressed. It is to prevent overdosage. The usual 2 problems are miscalculation and adjustment of delivery rate.

For technical, the trainer talked about troubleshooting and the usual problem arised like the LED flash rate is not within 21+/-5 secs and the thrust test failed. Most of the solution to the problem is adjust the R9 and R5. You can either adjust the resistors from the cover or internally.

Did commissioning of a electrical stimulator. It requires a digital oscilloscope and test load. There are 5 different waveform tests are carried out to check whether the system is operating. It is also a therapy unit that will be used in the rehabilitation.

I did soldering for the cable of resuci Anne skill reporter since yesterday. I spend almost a day doing it as it is my first time solder the wires to a 8-pins connector. I met a few problems as the pins are uable for me to place a bit of solder on it. Therefore the contact between the pin and the wire is not really good. Sometimes no matter how much solder i place on the soldering iron when trying to solder the wire to the pin, the solder seems unable to stick to the pin. It got pretty frustrating as the wire coming off. After finished soldering, i feel like i have done something that makes me proud of

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