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1. WO2020200184 - A METHOD FOR REMOVING FREE FLOATING NON-THERAPEUTIC DRUG PARTICLES RELEASED FROM A DRUG COATED BALLOON CATHETER


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/CN2020/082258 xmsc2020004
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
31 March 2020 01 April 2019
Applicant
VASCUROS MEDICAL (SHANGHAI) CO., LTD
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)).
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)).
c.
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:
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:
1.
Claims Nos.: 1-4
because they relate to subject matter not required to be searched by this Authority, namely:
[1] The subject matter of claims 1-4, which encompasses a method of treatment of the human/animal body, is not required to be searched by this Authority under Rule 39.1 (iv) PCT. Regardless, the search has been carried out and based on use of the balloon aspiration catheter and the drug coated balloon catheter for the manufacture of a medicament for the therapeutic application.
2.
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:
3.
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.

A method for removing free floating non-therapeutic drug particles released from a 

drug coated balloon catheter is disclosed.


6. Drawings
a.
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.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     A61M; A61L
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):
DWPI, VEN, CNABS, CNTXT, CNKI, WANFANG, ISI WEB OF SCICENCE, ELSEVIER SCIENCE DIRECT, GOOGLE scholar, baidu scholar: balloon, catheter, drug, coat+, particl+, aspiration, angioplasty, float+

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
WO 2019009809 A1 (VASCUROS MEDICAL SHANGHAI CO LTD) 10 January 2019 (2019-01-10)
1-4
claims 1-6, description page 4 lines 10-25
(2)
X
WO 2018093329 A1 (SHANGHAI MAIKE MEDICAL TECHNOLOGY CO LTD ET AL.) 24 May 2018 (2018-05-24)
1-4
claims 1-3, description page 3 lines 27-37, abstract
(3)
X
WO 2019024726 A1 (HANGZHOU WEIQIANG MEDICAL TECHNOLOGY CO LTD ET AL.) 07 February 2019 (2019-02-07)
1-4
claims 1-2, description page 1 lines 21-29, page 3 lines 14-21,abstract
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
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)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
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
"X"
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
"Y"
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

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
WO 2019009809 A1
10 January 2019
None
WO 2018093329 A1
24 May 2018
CN 109414571 A
01 March 2019
WO 2019024726 A1
07 February 2019
CN 109381783 A
CN 208448410 U
26 February 2019
01 February 2019
Name and mailing address of the ISA/:
National Intellectual Property Administration, PRC
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
23 June 2020
Date of mailing of the international search report:
06 July 2020
Authorized officer:
DOU,Bojian
Telephone No. 62411125
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