B GIÁO DO
I HC BÁCH KHOA HÀ NI
-------------------------------------
Chuyên ngành
LUC
NG DN KHOA HC:
Hà Ni 2013
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170817795589622bcd98b-c054-4014-b6f2-4f891e075d34
17081779558967696b99a-398b-4702-b905-0295c2f50848
1708177955896e9bf0f72-40b8-4ad1-98a5-fa4ca48fe64b
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1.1.2. Chu trình hong ca tim .....................................................................22
NG TIM (CO) M QUAN TRNG
CA CO ................................................................................................................27
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THIT B CHNH V TIM MCH TI ViT
NAM ......................................................................................................................49
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TR KHÁNG NGC (ICG) VÀ CÁC THÔNG S
HUYNG .........................................................................................................56
2.1. C S LÝ THUYT V
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p cho vùng ngc.....................................................58
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2.2. PHÂN TÍCH TÍN HI TR KHÁNG NGC ............................. 61
m quan trng trên tín hi tr kháng ngc .........61
ICG ........................................64
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3.3. LA CHN GII PHÁP CHO THIÉT K .............................74
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3.3.2. nuôi ..........................................................75
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3.3.3. La chn các thông s cho thit k
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3.3.4 ................................................79
TÍN HIU VÀO VÀ VÀ LA CH
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3 ........................................................................... 82
3 ..............................................................................83
3 ......................................................................................83
3.5.2. Thit k k .......................................................85
3.5.3.Thiét k .....................97
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TÓM TT LU
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A.116
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120kHz ...................... 120
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truyn dng các vùng ca tim ............................................. 23
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120kHz ......................................................................... 90
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ADSS7816 ....................................................... 97
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trên Labview ........................................................................... 115
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... 118
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70kHz ........................................................................... 127
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vong cao
,
.
p [4]
,
13
Nam
thông .
.
,
.
T
h.
14
15
1
1.1. TIM [5]
c trong sut cu
i nh so vi nhc
khong bng mt nm tay và nng khong 365 (± 65) g. H thc ca tim
n hong cn phi có nhc truyn t h thn ca
tim. T và sc co bóp ca tim ph thuc vào các yu t hóa h
epinephrine và acetacholine.
Tim nm trung thc, phía bên trái lng ngc và nm
ngay phía trên m tim nm ng v phía bên trái, gn
kho n th n sau c
nghiêng sang bên phc hoc phía bên ca tim ta s thy ch yu
là tâm thy ví d ng nhc bên thì
ng ch yu
Tim bao gm các t t (chi) và các t
p khong 100.000 li ngày. Không th ngh trong thi
thu tp trung các ty lp th cao trong mi t
bào vng cung cp oxy d tng liên tc. Các t bào ly
khong oxy chng mch vành - nhit k
nào khác c - bt k nh nào.
Trên hình 1.1 mơ t cu to c
ng mch ch và máu tr v
mch. Chng b phn ca tim có th nêu vn t
16
Nu lp màng này b viêm - viêm ngoi tâm mc - thì mt trong ca 2 lp ngoi
tâm mc này s dính vào v c sát gia hai lp s
to ra mt âm ngn xy ra k ng c ca hai ming cao su
hoc 2 ming da thuc vào vi nhau. Ngồi ra, mng di nh tích t
bên trong túi ngoi tâm mc này có th làm cn tr kh a tim. Hin
c gi là hi ng chèn ép tim (cardiac tamponade) và có th dn
n lui tim ít hoc khơng có.
Lng tâm mc to thành lp ngoài co thành lp gia
ca tim và ni tâm mc là lp trong cùng c ng mch vành - là các
ng mch cung cp máu cho các t bào c - ng tâm
mp dày nht ca tim. Lp ni tâm mc có m
cho máu có th dàng trong các bung tim. Các van tim là mt phn ca
lp ni tâm mc.
c cp máu ch yu vào lúc nó ngh - và dãn ra trong thì tâm
ng mch vành ph ng mch ch ng mch
ch ch yu cung cp máu cho tht phng mch vành trái
chính b u t b trái c ng mch ch i din v ng mch vành phi.
ng mch:
mc xung chy xung mc ca tâm tht trái.
- : và
lá. -
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trên -
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