I- DA! CU'CTNG
NOI SOI VA TRIET SAN
L e T h i T h a n h Vdn
Tr en the gidi triet san nur tir n g u y e n la bien p h a p t ra nh thai dirge d u n g r o ng rai nhat. ISac tinh co toi 182 trieu c a p v g c h o n g tin t u d n g vao bien p h a p triet san tu n g u y e n , t r on g do c o 140 trieu la ap d u n g triet san nu. Tai Vi et N a m t he o so lieu n a m 1993, ud c tinh c o k h o a n g 4 0 0 . 0 0 0 n g u d i ( 6 , 4 % ) sir d u n g bien p h a p t ra n h thai nay. H a n g n a m c o k h o a n g 4 3 . 0 0 0 c a thdt voi trurng. Triet san n u (thdt voi trurng) la bien p h a p t ra nh thai hieu q u a nha t, d o n gian, an toan va k i n h te, n h u n g la loai bien p h a p vlnh v i l n . P h u o n g p h a p d u g c thuc hien b a n g tieu thu thuat m o b u n g ha y soi 6 bu ng .
H ie n n a y triet san q u a noi soi la p h u o n g p h a p k h a pho bien d u g c sir d u n g nhieu nha t. O c a c n u o c p ha t trien c o k h a n hieu ky t huat de a p d u n g p h u o n g p h a p nay. M a c du t h e o dinh ng hl a, d a y la m ot thu t huat triet de va k h o n g the p h u c hoi, s o n g ng ud i ta vdn m o n g m u o n sur d u n g c ac p h u o n g tien ft gay t6n hai c h o voi t ru n g nhat. That vay ket q u a vi phdu t hua t t h o n g voi t r un g phu t h u o c rat n h ie u vao tinh trang c u a voi t rung da triet sail, turc la phu t h u oc vao ky t hua t triet san da d u g c sir d u ng . Soi 6 b u n g c o Uu d i e m thuc hien n h a n h va d i lam hon tieu thii thuat m o b u n g , ft g ay dau d o n c h o n g u o i b e n h va c o the d u g c d u n g c h o c ac m u c dich chdn d o a n k h a c . N h u g c d i e m la c a c thiet bi de u dat tien, b a o q u a n c u n g . c o the ga y ton k e m va k h o a p d u n g doi hoi phai c o sir d a o tao rat c h u y e n sau, b e n h vien phai d u g c t ra n g bi hien dai va c o c a c di ch vu ho trg.
I- KY THUAT
C a c n g u y e n tdc c h u n g
Noi soi d u g c t h uc hien t he o ky t huat t h o n g t h u o n g voi g a y m e to an tha n
II- DUNG CU
Triet san q u a noi soi la m ot phdu t huat d o n gi an t r o ng do n g u d i ta c o the d u a m a y soi va d u n g cu thdt va o bang m o t du ong duy nhat m a van c o the tien h a n h t h a o tac t h u a n lgi. T h o n g t h u o n g hien n a y To c h u c y te the gioi da p h a n pha t d u n g cu loai n ay c h o c a c n u o c the gioi t h u ba.
T u y n h i e n c h u n g toi ugh! rdng ne n dat mo t o n g soi tren k h d p ve de c o the’ q u a n sat tieu k h u n g ro ra n g nhat.
Vi trf d u a da u soi va tuy t h u o c vao dieu kien tai c h 6 va tuan t h e o n g u y e n tdc la d u n g cu that voi t ru n g phai v u o n g goc voi e o voi v ao luc thdt voi va t h u d n g d u d n g v a o voi trirng trai la k ho nhat. T h u c te c h u n g toi h a y d u a dau soi d vi trf d u d n g tra ng giua.
Dat can n a n g tir c u n g t r ong tat c a c a c tru o ng hop, vdi n h u n g b e n h n h a n c o n g u y c o n h i e m t ru ng c a o (b e nh n h a n g i a m mi e n di c h, b e n h ly v i e m a m dao. .. ) n gu di ta tra nh dat c a n n a n g t u c u n g thi phai dat t h e m q u e g a y tren k hd p ve.