Trigger Detection - Datascope System 98 Service Manual

3. SPECIFICATIONS
CONTENTS OF THIS CHAPTER ...................,.. Page
3.1 Trigger Detection 이이 이이 으으으 의의 으으 이이 이이 이시이 이 이이 이이 이이 의 3-1
3.2 Pneumaric System . ............................ 3-2
3.3 ECG Channel し し 2 의. 3-2
3.4 Pressure Channel... ........................... 3-4
3.53. Heart Rate Meter . 2.0.0.0. 02002 0020000000000 000. 3-6
3.6 Display System... ... 이 이이 이이 이 이 이 이이 3-6
3.7 Recorder 2 이이 이이 ...,................ 3-6
3.8 Power .. 2... 2. 이 이이 이이 이 이이 이 이 의, 3-7
3.9 Helium Cylinder. し レレ し し し ーー 3-8
3.10 Doppler (Arterial Blood Flow Monitor) . νο εν ον νον 3-9
3.11 Comrmunlcartions . . .. . . ... ................ 3-10
3.12 Physical Characteristics 2 0 0 een 3-11
3.13 Environmental Characteristics . . . . .. 3-13
3.14 Safety Characteristics し . ................... 3-15
3.15 Agency Compliances レレレ レレ レレ し レー し に にし ーー レー に ーー ニー ニーーーーー 3-16
3.1 TRIGGER DETECTION
ECG:
Pacer A:
Pressure:
Pacer V/A-V:
Tall T-Wave Rejection:
(ECG & Pacer A
Trigger Mode)
Trigger threshold is dynamically adjusted by the
system for improved sensitivity and selectivity of
the R-wave detection.
Minimum threshold in normal gain is 120 +20pV
In user-adjusted variable gain mode, the effective
minimum threshold is 40uV at maximum gain.
(40 ms pacer blanking)
same R-wave detection as above except that pacer
blanking is extended to 100 ms.
Norma! mode: Automatically adjusted to 50% of
the difference between peak systolic and end
diastolic (averaged over multiple cycles).
Variable mode: User adjustable berween 7 and
30 mmHg, +3 mmHg)
V Pacer: fixed rate up to 185 bpm
(no demand pacing)
A-V Pacer: fixed rate up to 125 bpm
(no demand pacing) with A-V intervals berween
80 and 224 ms
Rejects all T-Waves where Q-T interval is <300 ms
and the amplitude is <70% of QRS input amplitude.
System 98 Service Manual
Chapter 3, Specifications
3-1