my lifestyle

my lifestyle

2009年3月28日星期六

Why Mosquito Bites Itch


Why Mosquito Bites Itch
A mosquito doesn't actually bite you, of course. It sucks your blood.
To help enable effective blood-sucking, it first injects anti-coagulant saliva to stop the blood from clotting or forming a scab while it feeds. When the mosquito goes away, its saliva stays in the pocket under your skin.
Now comes the itchy part. Your body releases histamine to fight off a foreign substance. It's the same as an allergic reaction. The histamine causes swelling around the area and as a side-effect it itches.
waiting for completing.....

Medical Needle Disposal (breif version)


Status: Current Methods Unsafe and something is costly.
Currently I am serving as a nurse in the hospital, and I use the medical needle almost all the time to do some medical therapy to my patients, but after the manipulation the method used to depart the needle from the pumping body is unsafe, it is the most original that you use your two hand to make them apart without any protection. However, as we all know, hospitals house large numbers of people who are sick and whose immune systems are often in a weakened state, what’s more, we do not know if the patient we have taken manipulation on have the HBV, HCV or HIV or not. So it is easer to happen with Nosocomial infections which are a result of treatment in a hospital or a healthcare service unit, but secondary to the patient's original condition. Infections are considered nosocomial if they first appear 48 hours or more after hospital admission or within 30 days after discharge in the hospital.

Why I made this device?
• The outgoing document of PRC’s ministry of health,the document states that the sharp               device used in the medical field must be recollected in a certain container which can ensure           the sharp device not harming the doctor and nurse.
• The high risk to nurses when they are disposing of used needles. (to protect nurses from the         infection something like HIV and Hepatitis and so on so forth)

What is it?
The design allows doctors and nurses working in harried conditions or developing countries to dispose of used needles easily and safely. 

What is the structure?
1. Protective funnel
The funnel, which is thick and large, can protect users’ hands from stab by the needles being discarded, as well as preventing liquid splash back.
2. Anti-rolling device
Just as the name, it is used to prevent the device rolling on the table and make it easily-managed.
3. The cap
It is the core design of this device, and let me tell you everything about how it get work and what is the advantage of it.
• 1).Valve
• 2).Central bore
• 3).The upper face of the cap
• 4).The funnel
4.the bottle
   The ordinary bottles, which are with the same size of the thread bottle cap, are all applicable.
(like the coke bottle, mineral water bottle and so on so forth)

How to use it?