Recherche dans les collections de brevets nationales et internationales
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International application No. Applicant's or agent's file reference
PCT/CN2017/099940 20618245WO00
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
31 August 2017
Shenzhen United Imaging Healthcare 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)).
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.

A radiation emission device (100,200,800) is provided. The radiation emission device (100,200,800) may include a cathode (126) configured to emit an electron beam and an anode (122,230) configured to rotate on a shaft (112,220). The anode (122,230) may be situated to receive the electron beam from the cathode (126). The radiation emission device (100,200,800) may further include a rotor (120) configured to drive the anode (122,230) to rotate. The rotor (120) may be mechanically connected to the shaft (112,220). The radiation emission device (100,200,800) may further include a sleeve (110,236,812) configured to support the shaft (112,220) via at least one bearing (114,234). The cathode (126), the anode (122,230), and the rotor (120) may be enclosed in an enclosure (124,810) that is connected to the sleeve (110,236,812). At least a portion of the sleeve (110,236,812) may reside outside the enclosure (124,810).

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.


     H01J; 35/10(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):
     H01J 35/-
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,CNKI,WPI,EPODOC:Shenzhen United Imaging Healthcare, radiat+, electron, anode, cathode, rotor, sleeve, bear+, ring, rotat+, cool+, race, hollow, baffle, spring, thermal


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
EP 1124250 A1 (MARCONI MEDICAL SYSTEMS, INC.) 16 August 2001 (2001-08-16)
description, paragraphs [0016]-[0055], and figures 1-5
EP 1124250 A1 (MARCONI MEDICAL SYSTEMS, INC.) 16 August 2001 (2001-08-16)
description, paragraphs [0016]-[0055], and figures 1-5
CN 102723251 A (ZHUHAI RUINENG VACUUM ELECTRONICS CO., LTD.) 10 October 2012 (2012-10-10)
description, paragraphs [0003]-[0008]
CN 1812680 A (GENERAL ELECTRIC CO.) 02 August 2006 (2006-08-02)
description, page 6 line 10 to page 7 line 19, and figure 2
CN 101553896 A (KABUSHIKI KAISHA TOSHIBA ET AL.) 07 October 2009 (2009-10-07)
description, page 5 line 10 to page 7 line 20, and figure 1
CN 101030516 A (SIEMENS AG.) 05 September 2007 (2007-09-05)
the whole document
US 2008056450 A1 (GENERAL ELECTRIC COMPANY) 06 March 2008 (2008-03-06)
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
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
EP 1124250 A1
16 August 2001
JP 2002134047 A
DE 60101640 T2
US 6385293 B1
EP 1124250 B1
DE 60101640 D1
10 May 2002
18 November 2004
07 May 2002
02 January 2004
05 February 2004
CN 102723251 A
10 October 2012
CN 102723251 B
28 October 2015
CN 1812680 A
02 August 2006
FR 2879809 A1
JP 2006261096 A
DE 102005061235 A1
FR 2879809 B1
23 June 2006
28 September 2006
29 June 2006
16 February 2007
CN 101553896 A
07 October 2009
US 2009225950 A1
JP 5259406 B2
US 7697665 B2
WO 2008069195 A1
EP 2099055 A1
CN 101553896 B
JP WO2008069195 A1
10 September 2009
07 August 2013
13 April 2010
12 June 2008
09 September 2009
06 June 2012
18 March 2010
CN 101030516 A
05 September 2007
DE 102005049270 B4
JP 2007109659 A
US 7443957 B2
US 2007086573 A1
CN 101030516 B
DE 102005049270 A1
16 February 2012
26 April 2007
28 October 2008
19 April 2007
08 December 2010
19 April 2007
US 2008056450 A1
06 March 2008
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:
27 March 2018
Date of mailing of the international search report:
25 April 2018
Authorized officer:
Telephone No. (86-10)53962573
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