肺功能仪技术参数

1.键盘输入的数据项目

A.编号B.性别C.年龄

D.身高E.体重F.日期

2.测试项目

A.☆ FVC 检测:

FVC                                           用力肺活量

FVCPRED                                       用力肺活量预计值

%FVC                                          FVC/FVCPRED

FEV1.0                                        1秒钟用力肺活量

FEV1.0PRED                                    1 秒钟用力肺活量预计值

%FEV1.0                                       FEV1.0/FEV1.0PRED 

FEV2.0                                         2 秒钟用力肺活量

FEV3.0                                         3 秒钟用力肺活量

FEV1%                                         1 秒率

FEV1%PRED                                     1 秒率预计值

%FEV1%                                       FEV1%/FEV1%PRED

FEV2%                                        2 秒率

FEV3%                                        3 秒率

MMF                                          最大呼气中段流速

MMFPRED                                      最大呼气中段流速预计值

%MMF                                         MMF/MMFPRED

MVV1                                         由1 秒量推算出的最大通气量

MVV1/BSA                                      MVV1 与体表面积之比

B.☆ FV 检测:

PEF                                             峰值流量

PEFPRED                                       峰值流量预计值

%PEF                                           PEF/PEFPRED

V75                                            呼气至7 5 % 肺活量时对应流速值

V75PRED                                        呼气至7 5 % 肺活量时对应流速值的预计值

%V75                                            V 7 5 实测值与预计值之比

V50                                           呼气至5 0 % 肺活量时对应流速值

V50PRED                                       呼气至5 0 % 肺活量时对应流速值的预计值

%V50                                          V 5 0 实测值与预计值之比

V25                                           呼气至2 5 % 肺活量时对应流速值

V25PRED                                       呼气至2 5 % 肺活量时对应流速值的预计值

%V25                                           实测值与预计值之比

V50/V25                                        V50 与V25 之比值

V50/V25PRED                                    V50 与V25 之比值的预计值

%V50/V25                                        V50 与V25 之实测值与预计值之比

V25/H                                           V 2 5 与身高之比

C.☆ MVV 检测:

MVV                                             实测最大通气量

MVVPRED                                         最大通气量预计值

%MVV                                             MVV/MVVPRED

BSA                                             体表面积

MVV/BSA                                         实测最大通气量与体表面积之比

D.☆ VC 检测:

VC                                                实测肺活量

VCPRED                                             肺活量之预计值

%VC                                                 VC/VCPRED

IRV                                                 补吸气量

ERV                                                 补呼气量

TV                                                  潮气量

IC                                                 深吸气量

MV                                                  静息通气量

RR                                                  呼吸频率

3．诊断分类及常见原因

A.正常(NORMAL)

B.性通气障碍(RESTRICTIVE)

·肺腔变小—手术切除后，间质纤维化、肿瘤、矽肺等。

·胸廓活动受限—胸膜积液、增厚、粘连、胸廓畸形等。

·胸腔受压—腹水、妊娠、肥胖等。

·呼吸肌无力—膈力疲劳、肌无力、肌萎缩、营养不良。

C.阻塞性通气障碍(OBSTRUCTIVE)

·慢性阻塞性肺疾病，如哮喘、肺气肿等。

·上呼吸道肿瘤、异物、炎症、气管或支气管肿瘤、狭窄等。

D.混和性通气障碍(MIXED)

·上述疾病兼有或加重或慢性病者。

E.肺功能障碍等级划分

F+ 轻度F++ 中度F+++ 深度

4．性能指标

容量检测范围： 0 — 8 L

容量检测精度： ± 3％F·S

流量检测范围： 0 —± 14L ／ S

流量检测精度： ± 5％F·S

显示： 液晶LCD 显示(320 × 240)点阵，显示面积105 × 80MM

打印机： 40 列高速热敏打印机，纸宽57.5MM，厚0.07MM，纸卷

外径不大于40MM

电源： AC 220 Ｖ／ 50Hz ± 10%

功率： ≤35W

尺寸： (L × W × H) 380 × 260 × 138MM

质量： ≤4.5KG

温度： 5°C-30°C

湿度： ≤80%