CN203736214U - Cooling device for frame of computed tomographic scanner - Google Patents
Cooling device for frame of computed tomographic scanner Download PDFInfo
- Publication number
- CN203736214U CN203736214U CN201320609692.0U CN201320609692U CN203736214U CN 203736214 U CN203736214 U CN 203736214U CN 201320609692 U CN201320609692 U CN 201320609692U CN 203736214 U CN203736214 U CN 203736214U
- Authority
- CN
- China
- Prior art keywords
- rotor
- frame
- cooling
- chiller
- duct portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/02—Constructional details
- H05G1/025—Means for cooling the X-ray tube or the generator
Abstract
The utility model relates to a cooling device for the frame (1) of a computed tomographic scanner. The frame (1) comprises a frame casing (2) and a rotor (4) which can rotate relative to the frame casing (1), wherein the rotor comprises an X-ray source and a rotating rack (5); the cooling device comprises one or more coolant pipelines; the cooling device is characterized in that each coolant pipeline is designed as a rolling pipe (8) which is arranged in the circumferential direction of the rotor (4) and provided with a plurality of pipeline sections (9) arranged in parallel and extending in the tangential direction of the rotor (4); a thermal insulation device (11) is arranged on the radial inner side of the rolling pipe (8) and between the rolling pipeline sections (9) and the rotating rack (5); a circular guide plate (10) is arranged on the radial outer side of the pipeline sections (9).
Description
Technical field
This utility model relates to the chiller of the frame of a kind of computer tomography instrument (CT).Computer tomography instrument is designed for especially and produces faultage image by X ray technology in medical skill.Computer tomography instrument can be checked for nondestructive material equally.
Background technology
The frame of computer tomography instrument comprises ringwise non-rotating part substantially, is commonly referred to as frame housing.Described frame housing generally has fixing support, is fixed with shell surface plate or fluid plate on it.On support, for example, be supported with again the ringwise part equally substantially of rotation in the time that computer tomography instrument moves by suitable bearing arrangement (rolling bearing), be commonly referred to as the rotor of frame.Alternative as to direct supporting, rotor also can be tumbled and be fixed on support by tiltable frame and therefore.Rotor comprises again the swivel mount that is called drum, and the parts of all rotations are fixed on swivel mount, especially at least one X ray emitter and at least one detector coefficient with it.Swivel mount is made up of metal casting especially aluminium casting conventionally.
In the computer tomography instrument as X ray technology instrument, the major part of moving in the required electrical power of X ray emitter is converted into heat and only has relatively little ratio to be converted into X ray.For this reason, need to carry out X ray emitter coolingly fully, this for example can realize by the air cooling in frame.
By the frame of the known a kind of computer tomography instrument of DE102005041538B4, it comprises the support ring for supporting rotatable swivel mount, and wherein, support ring has for the cooling duct to swivel mount input coolant (being air).Described cooling duct has many paths and along the cross section circumferentially changing, wherein, the cross section of variation can with the amount of coolant adaptation reducing in cooling duct.
DE10304661B4 discloses another kind of for carry out the method for frame of cooling computer x-ray tomography instrument by air cooling.In this case, frame housing can be tumbled and be bearing on the standing part of computer tomography instrument by bearing.Refrigerating gas input equipment is provided in bearing region, cooling blast being imported in frame housing from standing part.
WO2008/052735A1 relates to a kind of refrigerating module that is particularly useful for cooling Medical Instruments.In this case, Medical Instruments also can refer to computer tomography instrument, wherein, and the inner air in the frame of refrigerating module cooling computer x-ray tomography instrument.Refrigerating module has gas-liquid-heat exchanger, ventilate fan and is at least partially integrated in the control unit in ventilate fan.
Chiller by the known another kind of DE19945413A1 for the frame of computer tomography instrument, it has at least one heat exchanger being circulated by liquid medium.Liquid medium can refer to the cooling and insulating oil around the x-ray source of computer tomography instrument.Be approximately on the whole annular heat exchanger and formed by the heat exchanger element of independent rectangular parallelepiped shape, as they apply in auto industry.
DE2010013604A1 discloses a kind of computer tomography instrument with Control device of liquid cooling equally.On the rotor of the frame of computer tomography instrument, be furnished with at least one X-ray tube and liquid-cooling system.Described liquid-cooling system to be to extend from the spacing of the different sizes of rotation axis, thereby occurring in varying degrees centrifugal force.In order to improve the pressure in cooling system, be provided with the compensation volume of common rotation, it carries like this by mass elements, makes by the pressure of centrifugal action rising cooling liquid.
Utility model content
Technical problem to be solved in the utility model is, the chiller of the frame of described prior art to computer tomography instrument improves design relatively, especially makes its saving space.
This technical problem is pressed this utility model and is solved by a kind of chiller of frame of computer tomography instrument, the rotor that this frame has frame housing and can rotate with respect to described frame housing, described rotor comprises x-ray source and swivel mount, described chiller has at least one coolant line, according to this utility model, described coolant line is designed to the rolling tube in described periphery of rotor and has the duct portion section along rotor cutting to extension of multiple layouts parallel to each other, wherein, at the radially inner side of described rolling tube, between the duct portion section of reeling and swivel mount, there is the heat ray filter that is cylindrical shell shape, and wherein, there is annular guide plate at the radial outside of described duct portion section.
This chiller is for the frame of cooling computer x-ray tomography instrument, the rotor that it has frame housing and can rotate with respect to described frame housing, described rotor comprises x-ray source and at least one coolant line, wherein, described coolant line be designed to the rolling tube in periphery of rotor and have multiple layouts parallel to each other along rotor cutting to extend duct portion section.At this, the rolling tube being made up of the duct portion section of tangentially extending forms heat exchanger, its in the time that computer tomography instrument moves to surrounding air discharges heat.By the air of heat exchanger heats for example can from computer tomography instrument, discharge and/or in computer tomography instrument inside by another fixing cools down.
A kind of special joint space-efficient design of heat exchanger in gantry rotor provides in such form of implementation, wherein, is arranged in the week of described rotor upwards the heat exchanger pipeline portion section monolayer that circumferentially extend on described edge.
According to the alternative form of implementation of one, be arranged in to described duct portion section multilamellar the week of described rotor upwards.In this case, cooling effectiveness is compared previously mentioned form of implementation and is obviously improved structure space being had while necessarily additionally needing.
In both cases, owing to as much as possible the whole cylindrical circumferential surface substantially of rotor frame being fully used to form to the installed surface of the duct portion section of heat exchanger, the prominent features that is designed to the heat exchanger of tubular cooler is larger storage volumes and is therefore especially short-term greatly to absorb the calorifics peak power being produced by x-ray source.Meanwhile, owing to all surrounding at least partly and preferably the circumferential exterior line portion sections that preferably circulated by liquid coolant of rotor framves, can be discharged into enduringly thermal power in environment by the coolant line that is designed to rolling tube high.The relative prior art that realized this higher cooling effectiveness shortens cooling time out or has fully phased out cooling time-out, and this has equaled correspondingly to improve the service time of computer tomography instrument.
X-ray source and coolant line can be fixed on the swivel mount of rotor in easy-to-install mode.According to a kind of favourable expansion design, swivel mount has the heat ray filter between x-ray source and coolant line.By this heat ray filter, by even the hot-fluid in gantry rotor side, this especially contributes to reduce geometry that cause by calorifics, that affect computer tomography instrument image quality and changes.
Frame housing generally has fixing support, is fixed with shell surface plate or fluid plate on it.In some modification forms of implementation, support comprises tiltable frame, and the tipping line of described tiltable frame is perpendicular to the rotation axis orientation of rotor.
Preferably expand design according to one, not revolvable support itself by vertically with respect to the rotation axis of frame towards the annular cooling air channels of rotor constriction around, rotor can be rotated to support on support, the heat exchanger that is designed to outside rolling tube that described rotor has X ray emitter and together rotates.At this, by least one ventilate fan, air is delivered to the rotor of frame from frame housing.It is outside or inner that at least one carries the ventilate fan of air can be arranged in frame.Preferably there are multiple ventilate fans, its quantity and desired cooling effectiveness adaptation, described multiple ventilate fans are arranged in a side of tiltable frame on the whole ringwise in cooling air channels, are namely arranged in the non-rotary side of frame.Because the cooling air channels of annular (as long as it is in the non-rotary side of frame) can be with any degree on the one hand, almost intactly be equipped with when needed ventilate fan, and the rotating part section of cooling air channels is filled with the heat exchanger pipeline portion section that forms rolling tube to a great extent on the other hand, so produced the higher thermal stream by frame in narrower space.
A kind of preferred configuration of frame has specified such cooling air channels, its rotation axis with respect to rotor have on support or among directed cooling-air input part section vertically and radial loop around the radially directed cooling-air efferent section of gantry rotor.Differently for example also can realize with it such configuration, its mid frame mainly can supply cooling circulation of air on the whole vertically.
For example can make water or oil as the fluid that flows through the coolant line in gantry rotor side.Fluid mobile in heat exchanger is preferably also directly used in cooling x-ray source.
In the frame configuration of all descriptions, in order to improve heat exchange, alternatively also for targetedly at frame guided inside cooling-air, coolant line can be connected with heat conduction with cooling fin.
Described chiller architectural feature, both relate to heat exchanger and also related to its member around, in particular for guide element or the wall of guiding cooling-air, realize in the case of using unified basic concept (it is the tubing heat exchanger based on reeling always) and designed very flexibly and as required cooling effectiveness.Simple modification probability is for example by changing heat exchanger circle number of turns amount or having changed the duct portion section realization of the formation heat exchanger of diameter by uses.Same feasible, in the week of gantry rotor, a unique heat exchanger or multiple heat exchanger are upwards installed.
In all cases, by least one tubular cooler is arranged in periphery of rotor, rotor distolateral (namely on its front and back) formed can flexible Application structure space.The cooling medium pump being connected with coolant line is for example arranged in the distolateral of rotor.Equally also can be at rotor distolateral, the especially positive compensation vessel of arranging as chiller parts.But compensation vessel also can be positioned at rotor on the back side of support or be positioned in periphery of rotor.
The utility model has the advantage of, by by the heat exchanger designs in gantry rotor side being the tubing heat exchanger having along the circumferential coolant line in rotor radial outside, both realized and the good heat exchange of CT parts that is arranged in rotor radial outside, also can make full use of the existing structure space in gantry rotor side.
Brief description of the drawings
Below further set forth with reference to the accompanying drawings embodiment of the present utility model.Part is simplifiedly in the accompanying drawings:
Fig. 1 partly illustrates the frame of computer tomography instrument with cross section;
Fig. 2, Fig. 3 illustrate the different flexible programs of the frame of computer tomography instrument with schematic sectional view;
Fig. 4 to Fig. 6 illustrates respectively the different end-views of the frame of computer tomography instrument.
Detailed description of the invention
Corresponding or act on identical parts and all represent with identical Reference numeral in institute's drawings attached.
The frame shown in part in Fig. 1 that entirety by reference numeral 1 represents is a part for computer tomography instrument not shown further, can be with reference to the prior art that beginning is quoted herein about its basic function.
Frame 1 entirety has and is approximately the configuration of anchor ring shape and comprises non-rotatable tipping frame housing 2 and be rotatably fixed on the part with multiple separate parts on frame housing 2 by bearing arrangement 3 (being rolling bearing), that is entirety is called the rotor 4 of frame 1.
Can in Fig. 1, see by bearing arrangement 3 and be bearing in the swivel mount 5 (also referred to as drum or gantry) on frame housing 2 and be fixed on x-ray source 6 and the emitter diaphragm 7 on swivel mount 5 as the separate part of rotor, it is arranged in the light path of the X ray of being launched by x-ray source 6.Fig. 1 also shows and is fixed on equally swivel mount 5 weeks rolling tube 8 upwards, and its duct portion section 9 spaced in parallel to each other by the tangential extension along rotor 4 forms and as heat exchanger, to especially discharge the heat that x-ray source 6 produces.The cooling-air stream representing by overstriking arrow in Fig. 1 flows through the rotor 4 of frame 1 vertically.Thinner arrow represents fluid stream and/or the hot-fluid between rolling tube 8 and the x-ray source 6 of rotor 4 inside in being made up of coolant line.
In order targetedly cooling-air to be directed to the surface of the duct portion section 9 that forms rolling tube 8, there is the annular guide plate 10 around this duct portion section at the radial outside of duct portion section 9.On the radially inner side of rolling tube 8, between the duct portion section 9 of reeling and swivel mount 5, there is alternatively the heat ray filter 11 that be cylindrical shell shape the same as guide plate 10.
According to the embodiment of Fig. 1, cooling-air stream just flows facing to the back side from frame 1.In the time that cooling-air flows out from being formed at annular cooling air channels 12 (being wherein furnished with rolling tube 8) between heat ray filter 11 and guide plate 10, cooling-air arrives tiltable frame 13, and described tiltable frame is the parts of frame housing 2.Therefore the heat that, arrives tiltable frame 13 from x-ray source 6 in the time that computer tomography instrument moves flows discharge by cooling-air equally.Cooling-air radially leaves frame housing 2, wherein, in order to derive cooling-air stream from frame housing 2, in this frame housing, is furnished with opening.
There are non-rotatable or not tipping CT parts in frame housing 2 outsides, in Fig. 1, only show fixing chiller 14 in the mode of adapter.Described fixing chiller 14 by air-liquid-heat exchanger with cooling identical mode work and same can the circulation vertically of in rotor-side in frame 1, realizing by rolling tube 8, wherein, the flow direction of air in fixing chiller 14 is reverse with the cooling-air stream in cooling air channels 12.Be subject to cooling air after fixing chiller 14 flows out, the air of cooling mistake flows back to cooling air channels 12, has formed thus the cooling air circulation of sealing in computer tomography instrument.Also can realize in a not shown manner such form of implementation, wherein cooling-air is only guided once by cooling air channels 12 and is then derived by computer tomography instrument.
Show in detail rolling tube 8 and parts to be cooled are the thermal coupling between x-ray source 6 according to the embodiment of Fig. 2 (only show rotor 4 and the frame housing 2 of frame 1 is not shown).Flow through the fluid of rolling tube 8 and the oil phase of cooling x-ray source 6 same.Formed thus unique heat carrier circulation, be that oil is in x-ray source 6 places heat absorption and in rolling tube 8 places heat release by heat-carrying agent medium in this circulation.In order to connect parts to be cooled and rolling tube 8 on fluid technique, be provided with male part 15.
In Fig. 2, can also see the multilamellar form of implementation of rolling tube 8.This by duct portion section 9 be divided into two or more concentrically with respect to one another layer layout can realize according to the embodiment of Fig. 1 or according to the embodiment of Fig. 3 equally.The rotation axis of frame 1 represents with R in Fig. 2 and Fig. 3.
The cooling flexible program of frame 1 is shown according to the embodiment of Fig. 3, and wherein, cooling-air flows into vertically in frame housing 2 and radially leaves this frame housing.Tiltable frame 13 inner form annular, directed cooling-air input part section 16 vertically, in described cooling-air input part section 16, be furnished with multiple ventilate fans 17.
Between cooling-air input part section 16 in the design of cooling air channels 12 in frame housing 2 and portion's section of cooling air channels 12 in rotor 4, only have less end play, it can appreciable impact cooling-air stream.And the appreciable impact of cooling-air stream is realized by the narrowing portion 18 being formed in rotor-side of cooling air channels 12.Cooling-air stream accelerates thus, and now flow direction remains axially first substantially.
The cooling-air being heated by rolling tube 8 is finally radially derived, and uses the cooling-air efferent section 19 in frame housing 2 that is integrated in of cooling air channels 12 for this reason.The cooling-air of heating, preferably by guiding back cooling-air input part section 16 at this unshowned fixing cooler, has therefore also formed the cooling-air stream of sealing in this case as according to the embodiment of Fig. 1.
In Fig. 4, show and rotor 4 is carried out use cooling fin 20 in the situation that coolingly additional with the schematic elevational view of frame 1, described cooling fin is connected with heat conduction with rolling tube 8.
Fig. 5 and Fig. 6 illustrate respectively the top view of the front end face (being rotor 4) of frame 1 to be similar to the view of Fig. 4.In both cases, except x-ray source 6 can also be seen the electronic building brick 21 being arranged on frame 1 front.In addition, figure 5 illustrates positive emitter chiller 22, it is as another the optional heat exchanger supplementing in rotor 4 weeks rolling tube 8 upwards.
This emitter chiller on frame 1 front is not set according to the embodiment of Fig. 6.In this case, the cooling of the parts to all generation heats in the rotor-side of frame 1 undertaken by rotor 4 weeks at least one rolling tube 8 upwards.And other parts of frame chiller (cooling medium pump 23 as shown in fig. 6) can be arranged on the front of frame 1.Therefore, be different from traditional refrigerating module, the layout that whole frame chiller is part positive (cooling medium pump 23) and part circumferential (rolling tube 8) by the spatial separation of its each separate part is corrected design, especially on the front of frame 1, has formed additional structure space 24 thus than prior art.
Claims (10)
1. the chiller of the frame of a computer tomography instrument, the rotor (4) that this frame (1) has frame housing (2) and can rotate with respect to described frame housing (2), described rotor comprises x-ray source (6) and swivel mount (5), described chiller has at least one coolant line, it is characterized in that, described coolant line be designed to described rotor (4) week rolling tube (8) upwards and have multiple layouts parallel to each other along the tangential duct portion section (9) of extending of rotor (4), wherein, at the radially inner side of described rolling tube (8), between the duct portion section (9) of reeling and swivel mount (5), there is the heat ray filter (11) that is cylindrical shell shape, and wherein, there is annular guide plate (10) at the radial outside of described duct portion section (9).
2. by chiller claimed in claim 1, it is characterized in that, be arranged in the week of described rotor (4) upwards described duct portion section (9) monolayer.
3. by chiller claimed in claim 1, it is characterized in that, be arranged in to described duct portion section (9) multilamellar the week of described rotor (4) upwards.
4. by the described chiller of one of claims 1 to 3, it is characterized in that, described x-ray source (6) and rolling tube (8) are fixed on the swivel mount (5) of the parts that form rotor (4).
5. by the described chiller of one of claims 1 to 3, it is characterized in that, described frame housing (2) has support (13).
6. by chiller claimed in claim 5, it is characterized in that, described support (13) is designed to tiltable frame, and the tipping line of described tiltable frame is perpendicular to rotation axis (R) orientation of described rotor (4).
7. by chiller claimed in claim 5, it is characterized in that, described support (13) by the annular cooling air channels (12) towards rotor (4) constriction around.
8. by chiller claimed in claim 7, it is characterized in that, described cooling air channels (12) has directed vertically cooling-air input part section (16) and radially directed cooling-air efferent section (19) with respect to the rotation axis (R) of rotor (4).
9. by the described chiller of one of claims 1 to 3, it is characterized in that, described duct portion section (9) is connected with cooling fin (20) with heat conduction.
10. by the described chiller of one of claims 1 to 3, it is characterized in that, the cooling medium pump (23) being connected with described duct portion section (9) is arranged in the distolateral of rotor (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012217567.9 | 2012-09-27 | ||
| DE201210217567 DE102012217567A1 (en) | 2012-09-27 | 2012-09-27 | Cooling device for cooling gantry of computer tomography utilized in e.g. medical engineering, has coolant spacer comprising line sections that run in tangential direction of rotor, where line sections are arranged parallel to each other |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203736214U true CN203736214U (en) | 2014-07-30 |
Family
ID=50235278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320609692.0U Expired - Fee Related CN203736214U (en) | 2012-09-27 | 2013-09-25 | Cooling device for frame of computed tomographic scanner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203736214U (en) |
| DE (1) | DE102012217567A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413070A (en) * | 2015-09-09 | 2016-03-23 | 上海联影医疗科技有限公司 | Medical equipment, cooling assembly used for the medical equipment, and radiotherapy equipment |
| CN109091157A (en) * | 2017-06-21 | 2018-12-28 | 西门子医疗有限公司 | The air cooled method of rack for medical imaging devices and at least one component for rack |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013223521A1 (en) * | 2013-11-19 | 2015-05-21 | Siemens Aktiengesellschaft | spotlight system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19945417A1 (en) * | 1999-09-22 | 2001-04-05 | Siemens Ag | Cooling device for X-ray emitter on rotatable gantry for computer tomograph achieves improved cooling of X-ray emitter |
| DE19945413B4 (en) | 1999-09-22 | 2006-04-13 | Siemens Ag | Cooling device and computer tomograph with a cooling device |
| DE10304661B4 (en) * | 2003-02-05 | 2007-03-01 | Siemens Ag | Cooling system and method for cooling a gantry |
| DE102005041538B4 (en) | 2005-08-31 | 2009-04-30 | Siemens Ag | Gantry of a computer tomograph |
| DE102007033548B4 (en) | 2006-10-31 | 2021-03-04 | Siemens Healthcare Gmbh | Cooling module, technical device with a cooling module and method for internal cooling of a technical device |
| DE102010013604B4 (en) | 2010-03-31 | 2014-07-17 | Siemens Aktiengesellschaft | CT system with liquid cooling |
| DE102011002619A1 (en) * | 2011-01-13 | 2012-02-23 | Siemens Aktiengesellschaft | Computer tomography apparatus for testing patient, has gantry arranged at mounting plate and tiltably mounted around tilting axis relative to mounting plate, where gantry is arranged at side and/or at point via bearing on mounting plate |
-
2012
- 2012-09-27 DE DE201210217567 patent/DE102012217567A1/en not_active Withdrawn
-
2013
- 2013-09-25 CN CN201320609692.0U patent/CN203736214U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413070A (en) * | 2015-09-09 | 2016-03-23 | 上海联影医疗科技有限公司 | Medical equipment, cooling assembly used for the medical equipment, and radiotherapy equipment |
| CN105413070B (en) * | 2015-09-09 | 2019-02-12 | 上海联影医疗科技有限公司 | A kind of Medical Devices, its cooling component and radiotherapy apparatus |
| CN109091157A (en) * | 2017-06-21 | 2018-12-28 | 西门子医疗有限公司 | The air cooled method of rack for medical imaging devices and at least one component for rack |
| CN109091157B (en) * | 2017-06-21 | 2022-04-15 | 西门子医疗有限公司 | Gantry for a medical imaging apparatus and method for air cooling of at least one component of a gantry |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012217567A1 (en) | 2014-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |