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International application No. Applicant's or agent's file reference
PCT/CN2016/086843 HVP161005PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
23 June 2016
Medtronic, Inc. et al.
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
This international search report has not been established in respect of certain claims under Article 17(2)(a) for the following reasons:
Claims Nos.: 18-21
because they relate to subject matter not required to be searched by this Authority, namely:
[1] Claims 18-21 set forth a method of performing hemodialysis. The subject matter of claims 18-21 relates to a treatment method of the human or animal body, and therefore, according to the criteria set out in Rule 39.1(iv), relates to subject matter for which an international search is not required.
Claims Nos.:
because they relate to parts of the international application that do not comply with the prescribed requirements to such an extent that no meaningful international search can be carried out, specifically:
Claims Nos.:
because they are dependent claims and are not drafted in accordance with the second and third sentences of Rule 6.4(a).
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.

An arterial air capture chamber (101) is used in dialysis. The arterial air capture chamber (101) includes an upwardly extending fluid inlet (102) terminating in a fluid inlet port (105) positioned at about a 90° turn relative to a fluid flow of a fluid inlet tube (107). The arterial air capture chamber (101) includes a draw tube (104) with an opposedly positioned beveled opening (306) at about 180° relative to the fluid inlet port (105). The arterial air capture chamber (101) provides improved fluid dynamics, reducing both stagnant flow and turbulence. The arterial air capture chamber (101) also provides for bidirectional flow of fluid through the arterial air capture chamber (101).

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 1/14 (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):
     A61M 1/-
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
CNPAT, EPODOC, WPI, CNKI: Medtronic, bubble?, air+, gas+, separat+, captur+, remov+, trap?, degas+, fluid, liquid, flow, artery, arterial, top, bottom, upward+, downward+, inlet+, outlet+, tangential, horizon+, bevel+, open+, hole?, angle


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 6117342 A (MEDISYSTEMS TECHNOLOGY CORPORATION) 12 September 2000 (2000-09-12)
1-17, 22
description, column 4 line 61 to column 8 line 33, figures 1-9
US 4102655 A (COBE LABORATORIES, INC.) 25 July 1978 (1978-07-25)
1-17, 22
the whole document
US 4681606 A (COBE LABORATORIES, INC.) 21 July 1987 (1987-07-21)
1-17, 22
the whole document
EP 2540328 A1 (EUROSETS S.R.L.) 02 January 2013 (2013-01-02)
1-17, 22
the whole document
CN 202154892 U (JIHUA MEDICAL APPARATUS AND INSTRUMENTS CO., LTD.) 07 March 2012 (2012-03-07)
1-17, 22
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 6117342 A
12 September 2000
WO 9823353 A1
AU 5447498 A
EP 0954364 A1
US 5980741 A
US 6010623 A
US 6051134 A
JP 2002512553 A
IN 222402 B
IND EL9703329 A
IND EL200502389 A
CA 2272307 A1
04 June 1998
22 June 1998
10 November 1999
09 November 1999
04 January 2000
18 April 2000
23 April 2002
22 August 2008
12 May 2006
31 July 2009
04 June 1998
US 4102655 A
25 July 1978
US 4681606 A
21 July 1987
GB 2186799 B
GB 2186799 A
ES 2005845 A6
FR 2594697 A1
IT 1217117 B
DE 3641644 C3
DE 3641644 C2
DE 3641644 A1
FR 2594697 B1
14 March 1990
26 August 1987
01 April 1989
28 August 1987
14 March 1990
17 October 1996
03 May 1989
01 October 1987
27 December 1996
EP 2540328 A1
02 January 2013
IT MO20110161 A1
EP 2540328 B1
28 December 2012
25 November 2015
CN 202154892 U
07 March 2012
Name and mailing address of the ISA/:
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
25 February 2017
Date of mailing of the international search report:
22 March 2017
Authorized officer:
Telephone No. (86-10)61648421
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