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International application No. Applicant's or agent's file reference
PCT/US2020/030916 86017000213
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
01 May 2020 02 May 2019
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing filed or furnished:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     A61M 1/36 (2006.01)i; A61M 1/16 (2006.01)i; A61B 5/029 (2006.01)i; A61B 5/1455 (2006.01)i; A61B 5/00 (2006.01)i; A61B 5/0275 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Korean utility models and applications for utility models
Japanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: cardiac output, veno-venous extracorporeal blood oxygenation (VV-ECMO), flow rate, oxygenator, carbon dioxide, non-invasive, calculation, sweep gas, dilution sensor


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2008-0033314 A1 (NIKOLAI M. KRIVITSKI) 07 February 2008 See the whole document.
US 2014-0276071 A1 (HIGHDIM GMBH) 18 September 2014 See the whole document.
US 2006-0211947 A1 (NIKOLAI KRIVITSKI et al.) 21 September 2006 See the whole document.
US 2002-0022785 A1 (SALVATORE ROMANO) 21 February 2002 See the whole document.
MESSAÏ, ELMI et al., "A new formula for determining arterial oxygen saturation during venovenous extracorporeal oxygenation", Intensive Care Medicine, 2013, vol. 39, pages 327-334 (published online 05 December 2012) See the whole document.
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 2008-0033314 A1
07 February 2008
US 2006-0052715 A1
US 7261696 B2
US 8162843 B2
09 March 2006
28 August 2007
24 April 2012
US 2014-0276071 A1
18 September 2014
BR 112015022173 A2
CN 105377124 A
CN 108464815 A
EP 2967368 B1
JP 2016-515898 A
JP 2018-075411 A
JP 2020-028726 A
JP 6268275 B2
US 2014-0275937 A1
US 9345436 B2
US 9949696 B2
WO 2014-153202 A1
18 July 2017
02 March 2016
31 August 2018
04 September 2019
02 June 2016
17 May 2018
27 February 2020
24 January 2018
18 September 2014
24 May 2016
24 April 2018
25 September 2014
US 2006-0211947 A1
21 September 2006
CA 2601479 A1
EP 1861001 A2
JP 2008-538934 A
JP 4909982 B2
WO 2006-096758 A2
14 September 2006
05 December 2007
13 November 2008
04 April 2012
14 September 2006
US 2002-0022785 A1
21 February 2002
AU 2000-47516 A1
AU 4751600 A
AU 775844 B2
BR 0010081 A
CA 2368241 A1
CN 1348341 A
EP 1173093 A1
EP 2329765 A1
ES 2438726 T3
HK 1043688 A1
IL 145942 A
IT 1315206 B1
IT FI990098 A1
JP 2002-541961 A
KR 10-0821409 B1
KR 10-20020002493 A
RU 2240033 C2
UA 73941 C2
US 6758822 B2
WO 00-64339 A1
ZA 200108982 A
10 November 2000
10 November 2000
19 August 2004
05 February 2002
02 November 2000
08 May 2002
23 January 2002
08 June 2011
20 January 2014
14 February 2014
05 September 2006
03 February 2003
27 October 2000
10 December 2002
10 April 2008
09 January 2002
20 November 2004
15 February 2002
06 July 2004
02 November 2000
12 June 2002
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
21 August 2020
Date of mailing of the international search report:
21 August 2020
Authorized officer:
Telephone No. +82-42-481-8131
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