Oct 21, 2004 - The software program uses these compensation and calibration ..... nal 200 from a gas analyZer such as th
USO0RE41332E
(19)
United States
(12) Reissued Patent
(10) Patent Number:
Binder (54)
(45) Date of Reissued Patent:
CARDIOPULMONARY EXERCISE TESTING APPARATUS AND METHOD
5,462,504 A 5,474,090 A
_
Andrew 5' Bmder’ Santa Barbara’ CA (US) (73) Assignee: Mergenet Medical, Inc. Coconut Creek FL (Us) ’
’
* 10/1995 Trulaske et a1. .............. .. 482/7 * 12/1995 Begun et a1. .............. .. 600/520
Sue DY.; Wasserman K; “Impact of intergative cardiopul monary exercise testing on clinical decision making,” Chest: 981C982 1991'* Beaver W.L.; Wasserman K; Whipp B], “A neW method for detecting anaerobic threshold by gas exchange,” Journal of A
(21) Appl' NO‘: 10/969’792 Filed;
May 11, 2010
OTHER PUBLICATIONS
(75) Inventor:
(22)
US RE41,332 E
lied Ph siolo
Wager
Oct 21, 2004
, 60: 202042027 1986 .*
lanicgklillS; Mcelroy Pin; “Determination of
areobic capacity and the severity of chronic cardiac and cir
culatory failure,” Circulation 76(suppl. VI)40*45, (1987).* Related US, Patent Documents
Reissue of; (64) Patent No.1 Issued:
NO" '
(62)
Noguchi, H; Ogushi Y; et al “Breath by breath VCO2 and
6,468,211
VO2 require compensation for transport delay and dynamic response,” Journal of applied Physiology 52z79i84 (1982).*
Oct. 22, 2002
* Cited by examiner
3946816632300
Primary ExamineriRobert L Nasser
'
’
(74) Attorney, Agent, or FirmiMaier & Maier, PLLC
Division of application No. 09/322,320, ?led on May 28,
(57)
ABSTRACT
1999, now Pat. No. 6,174,289.
(51)
(52)
(200601) (200601)
A gas analysis apparatus, and a method for calibrating it and for compensating measurement errors, are disclosed. This method and apparatus are particularly suited for use during a cardiopulmonary exercise test by a test subject. The oxygen
US. Cl. ...................... .. 600/300; 600/520; 600/483;
and carbon dioxide concentrations of the subject’ s breath are measured, and errors are Compensated based on the results
600/301; 482/7
of previous calibration. These compensated measurements,
Int‘ Cl‘ ‘4613 5/00 ‘4633 24/00
0f Classi?cation Search ...................... .. None
See application ?le for Complete Search history
as Well as other physiological data monitored
the
cardiopulmonary exercise test quantities calculated from these measurements, are presented as a series of graphs in a
(56)
References Cited
logical order to enhance their diagnostic and prognostic value. A facemask and headstraps are adapted for use With
U.S. PATENT DOCUMENTS 4,368,740 A
*
1/1983
4,463,764 A
*
8/1984 Anderson et al.
4,909,259
*
3/1990
A
4,930,519 A 4,966,141 A 5,435,315 A
* 6/1990 * 10/1990 * 7/1995
the gas analysis apparatus. The facemask possesses a plural
Binder ..................... .. 600/531
Tehrani
. . . . . . . . . . . . .
600/532 . . . ..
600/531
Anderson et al. ......... .. 600/484 Bacaner et a1. ...... .. 128/207.14 McPhee et al. ........... .. 600/483
ity of pins ?tting into corresponding holes in the headstraps, and the headstraps possess quick-release attachment means to provide for quickly securing the face mask to or removing it from a subject.
22 Claims, 6 Drawing Sheets
US. Patent
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Sheet 1 of6
US RE41,332 E
US. Patent
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Sheet 2 of6
US RE41,332 E
US. Patent
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Sheet 3 of6
US RE41,332 E
mm mm
mm
US. Patent
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Sheet 4 of6
US RE41,332 E
142
142
152
)
[144
148146
150
I/
‘
( Fig. 5
FLOW SIGNAL 202
---——1
204
j
/
.
DELAY TIME
'7‘
‘3
20a
‘
20o
GAS SIGNAL
RISE TIME
t
US. Patent
May 11,2010
Sheet 5 of6
US RE41,332 E
HEART RATE vs V02
80
o0
/ V 1
Rm34211.
0
1.-
w m w
cl 9 1
HW
.H“UHW.
\w w 0m m
Rm9 Kl,
k
1w
1| %
0
2000
1000
V02 AT =1710
3000 v02
mVmin
HR AT = 97
5000
4000
6000
185
Fig. 7 VE vs C02
200
/
0 _____-_--_-_-. _____-..-.._---
150
/
190
100 /
___-________.__1_
/
306
/302 82102
2000
5000 VC02
ml/min
7500
1 0000
US. Patent
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Sheet 6 of6
US RE41,332 E 200
vcoz vs v02
/
9000
55
9000
49
9000
40
9600 9000 W02
/’ 31 ,
21
/
mllmin
VGNOZ
/
9600
/
/
Ve/VCOZ
9600
310/ 9000 96m
/
1
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