The unrelated doctor which have necessity knowledge and experience
judge the following 6 heads.
| The item of the legal brain death decision |
The concrete way of examination |
Inspection part inside the brain and result |
Reference(*Nomal state) |
|
A sharp pain
stimulus to the face (Around the bottom of eybrow is strongly pushed if a stimulus is given to it with pin.) |
Brain trunk(3
fork nerve)It doesn't respond to the pain. Cerebrum.There is no pain |
3 fork nerve goes around here and it is srongly pushed and aches. |
|
Light is put on the pupil and observed. | Brain trunThere is no change in the stumulus from the outside in more than a diameter 4mm the pupil | The pupil become big and small by a balance sdjustment of sympathetic and parasympathetic nerve systems. |
|
Which stumulus(Catheter is put in the tube in the trachea) | There is no cough = There is no cough reflection | The 12 cranial nerves which exist in the brain trunk can be checked.(The first cranial nerves, smell nerve,don't have relation with a brain trunk.) |
| A cornea is stimulated with the cotton | It doesn't blink = There is no corneal reflection | ||
| Cold water is put in the ear | An eye doesn't move = There is no vestibule reflection | ||
| Light is put on the pupil | A pupil doesn't become small = There is no pair optical reflection | ||
| Which back is stimulated | There is no response that it is vomited = There is no pharynx reflection | ||
| A face is waved right and left | An eyeball doesn't move = There is no Eyeball head reflection(phenomenon of the eye of the doll) | ||
| Pain is given to it | A pupil doesn't become big | ||
|
The detection of the brain waves | Cerebrum.The brain waves which measure a function electrically aren't detected | The transmission of the infomation on the nerve cell is shown, due to the change in the electric potential(brain waves) |
|
Breathing-less
test （An artificial respiration vessel is removed, constant time about 10-minute progress observation |
Brain trunk(The center of the breathing).It can't breathe by oneself | A brain trunk does breathing and adjustment such as blood pressure. |
|
The inspection from 1 to 5 | it needs confirmation that there is no change in the state | This is nessesary confirmation in order not to misdiagnosis |
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