43rD DaY of aTtAchMent
Having cough and flu making me feel so lethargic for the whole entire day. Coughing and having flu are usually the symptoms showing that i am getting sick soon. The first call that Faz received from A&E is the slit lamp does not have light source which meant that light bulb unable to turn on. It happened since last saturday. Initially, faz thought the problem was the user overturn the intensity knob. However, after turning the knob, the problem still arised. Since the problem is unable to be solved, we brought back to department. When i brought it back, Mr Toh was pretty shocked as we are not suppose to do so as vapours will condense in the device while traveling from a place to another and this slit lamp, SL-450, has been here for more than 10 years so there is no humidity protection. Vapour condensation increases the chance of algae growing in the devices so it is pretty much not reccommended that we took it back to the department.
There are 3 causes that leads to this problem which are bad contact between the cover and bulb, overturn the intensity knob and light blown. Out of thesethree, the most common problem is the over-adjusted of the intensity knob. The doctors usually know how to diagnose from the measurements that they got from it and basic use of it but not the mechanical area. Therefore, when problem arised, they will not know what to do so biomedical engineering will come in place to solve the problem.
After the problem is solved by Mr Toh and Mr Sin, i was assigned to do the a new cable for it since the old one is already wear out. I took quite long time to solder the wires to the connector and turn out the the soldering was quite dry so Mr Toh gave me some tips on how to have good soldering skills like why we should cover a layer of solder on the wire.
After doing what i suppose to do, i continue where i stop for the maintenance. the occlusion was out of range for STC-523 syringe pump so i am not sure what i should do such as adjusting variable resistor as i have never done occlusion adjustment for the syringe pump and did not understand what the service manual saying. Mr Sin said it is best not to adjust anything as a slight adjustment of any variable resistor will cause it to go way off the range.
There are 3 causes that leads to this problem which are bad contact between the cover and bulb, overturn the intensity knob and light blown. Out of thesethree, the most common problem is the over-adjusted of the intensity knob. The doctors usually know how to diagnose from the measurements that they got from it and basic use of it but not the mechanical area. Therefore, when problem arised, they will not know what to do so biomedical engineering will come in place to solve the problem.
After the problem is solved by Mr Toh and Mr Sin, i was assigned to do the a new cable for it since the old one is already wear out. I took quite long time to solder the wires to the connector and turn out the the soldering was quite dry so Mr Toh gave me some tips on how to have good soldering skills like why we should cover a layer of solder on the wire.
After doing what i suppose to do, i continue where i stop for the maintenance. the occlusion was out of range for STC-523 syringe pump so i am not sure what i should do such as adjusting variable resistor as i have never done occlusion adjustment for the syringe pump and did not understand what the service manual saying. Mr Sin said it is best not to adjust anything as a slight adjustment of any variable resistor will cause it to go way off the range.
posted by Michelle Tham @ 5:29 AM
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