CN204601342U - The device of locking catheters sheath and dilator - Google Patents
The device of locking catheters sheath and dilator Download PDFInfo
- Publication number
- CN204601342U CN204601342U CN201520277628.6U CN201520277628U CN204601342U CN 204601342 U CN204601342 U CN 204601342U CN 201520277628 U CN201520277628 U CN 201520277628U CN 204601342 U CN204601342 U CN 204601342U
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- seat
- dilator
- sheath
- shaped configuration
- wavy shaped
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Abstract
A device for locking catheters sheath and dilator, it is convenient that the locking and unlocking of catheter sheath and dilator facilitates, and reduce blood vessel injury.Wherein, catheter sheath comprises sheath seat and is connected to the sheath pipe on sheath seat, dilator comprises dilator seat and is connected to the dilator tube on dilator seat, dilator tube is inserted into described sheath pipe through described sheath seat, described device is used for described sheath seat and the locking of described dilator seat to unlock, wherein, described device is included in the clip connection device and tripping mechanism that configure between described sheath seat and described dilator seat, described clip connection device is suitable for being pushed in the process of described sheath pipe in described dilator tube, make described dilator and described sheath seat snapping, described tripping mechanism is suitable in the process of rotating relative to described sheath seat at described dilator seat, described dilator is made to produce the locomotivity of the relatively described sheath seat of described dilator, and then force described sheath seat and described dilator to be threaded off.
Description
Technical field
This utility model relates to single use medical instruments field, specifically a kind of for percutaneous intervene operation, seal wire, surgical instrument, medical apparatus and instruments etc. is introduced the auxiliary appliance with hemostatic function of patient's blood vessel system (particularly tremulous pulse).
Background technology
Modern medical service technical development is rapid, creates the method for many percutaneous intervene operations, and in these methods, percutaneous coronary transluminal angioplasty (PTCA), X-ray contrast art and other similar operation often use.Have many technology relevant medical apparatus and instruments can be incorporated in human blood circulatory system, what wherein find broad application is Seldinger technology (couple puncture technique).In Seldinger technology, first on tremulous pulse or vein, open an osculum with puncture needle, then seal wire is introduced tremulous pulse or vein by the inner chamber of puncture needle, take out puncture needle.Dilator is entered catheter sheath inner chamber through catheter sheath haemostatic valve, after both lockings, enters tremulous pulse or vein by the guiding of seal wire together.After the sheath pipe position of catheter sheath is fixing, withdraw from dilator, final catheter sheath can provide turnover or change the passage of various intervention equipment.
Catheter sheath is connected by buckle with dilator and locks, and after having locked, sheath pipe enters tremulous pulse or vein together with dilator tube.After sheath pipe position is fixing, catheter sheath need be made to be separated with dilator, after withdraw from dilator.For fastening type structure, catheter sheath is separated with dilator need apply an axial separation force, and now sheath pipe and dilator tube are all in the middle of human vas, at the moment sheath pipe be separated, shake very easily occurs and touches blood vessel wall, causing vasospasm or damage.For the patient begining to learn Seldinger technology, the probability that this situation occurs is higher, significantly increases the misery of operating time and patient.
Utility model content
The purpose of this utility model is the device providing a kind of locking catheters sheath and dilator, the locking and unlocking of catheter sheath and dilator is facilitated convenient, and reduces blood vessel injury.
According to the device for the locking and unlocking catheter sheath and dilator of the present utility model, described catheter sheath comprises sheath seat and is connected to the sheath pipe on described sheath seat, described dilator comprises dilator seat and is connected to the dilator tube on described dilator seat, described dilator tube is inserted into described sheath pipe through described sheath seat, wherein, described device is used for described sheath seat and described dilator seat the locking and unlocking, and be included in the clip connection device and tripping mechanism that configure between described sheath seat and described dilator seat, described clip connection device is suitable for being pushed in the process of described sheath pipe in described dilator tube, make described dilator seat and described sheath seat snapping, described tripping mechanism is suitable in the process of rotating relative to described sheath seat at described dilator seat, makes described dilator produce the locomotivity of relatively described sheath seat, and then forces described sheath seat and described dilator seat to be threaded off.
According in preferred embodiment of the present utility model, the described tripping mechanism of described device is configured to described dilator seat can be rotated relative to described sheath seat with any turn direction, and and then makes described dilator produce the described locomotivity of relatively described sheath seat.
According in preferred embodiment of the present utility model, the described tripping mechanism of described device comprises the dropout inclined-plane that at least one party in described sheath seat and described dilator seat provides, and the abutting part on the described dropout inclined-plane of abutting that the opposing party provides, described dilator seat can rotate to make described sheath seat and described dilator seat relative separation by means of described abutting part along the relative motion on described dropout inclined-plane, and then described sheath seat and described dilator are threaded off.
According in preferred embodiment of the present utility model, described dropout inclined-plane is the smooth bevel between the crest of wavy shaped configuration and trough.
According in preferred embodiment of the present utility model, there is trough any crest both sides of described wavy shaped configuration.
According in preferred embodiment of the present utility model, described wavy shaped configuration comprises the first wavy shaped configuration and the second wavy shaped configuration, described dilator seat has the first wavy shaped configuration, described sheath seat has the second wavy shaped configuration, a side in wherein said first wavy shaped configuration and described second wavy shaped configuration provides described dropout inclined-plane, and the opposing party provides described abutting part.
According in preferred embodiment of the present utility model, be geometric similarity between described first wavy shaped configuration and described second wavy shaped configuration and be fitted together to complimentary to one anotherly.
According in preferred embodiment of the present utility model, described clip connection device comprises the dog clutch that described dilator seat axially stretches out and the back-off be positioned on described sheath seat, and described sheath seat and described dilator seat are by described dog clutch and described back-off snapping.
According in preferred embodiment of the present utility model, described back-off is formed on the inner circumferential sidewall of described sheath seat, described dog clutch can relatively described sheath seat axially to promote and in the radially-inwardly elastic deformation of described inner circumferential side-walls, and described dog clutch can with the promotion of described dilator seat, there is resilience and block mutually with described back-off, to realize described locking.
According in preferred embodiment of the present utility model, described sheath seat comprises sheath cap, described sheath cap comprises cap and lower cap, the outer circumferential side of described upper cap is tapered configuration, the inner circumferential side of described lower cap is tapered configuration, and described upper cap is seated described counterdie, and the outer circumferential side of described upper cap and the inner circumferential side of described lower cap are bonded to each other, the relatively described lower cap of described upper cap is radially-inwardly given prominence to, and forms described back-off.
By means of clip connection device, catheter sheath can be realized and dilator locks when pushing, by means of rotating mechanism, by rotating the dropout that can realize catheter sheath and dilator, therefore this utility model provides a kind of a kind of good catheter sheath and dilator of can providing in interventional procedure and locks and separation scheme, when making both effectively and easily lock and to avoid being separated, the shake of sheath pipe, effectively reduces blood vessel injury.
Accompanying drawing explanation
The above and other feature of the present utility model, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the exploded partial view of supporting catheter sheath and dilator in this utility model one embodiment;
Fig. 2 is the decomposition view of the sheath cap of catheter sheath in Fig. 1;
Fig. 3 is the sectional view of Fig. 2 mesotheca cap;
Fig. 4 is the schematic diagram in Fig. 1, dilator seat being pushed into sheath seat, which show internal structure;
Fig. 5 is the schematic diagram in Fig. 1, dilator seat being pushed into sheath seat, which show external structure;
Fig. 6 is the schematic diagram that in Fig. 1, dilator seat and sheath seat are interlocked, and which show internal structure;
Fig. 7 is the schematic diagram that in Fig. 1, dilator seat and sheath seat are interlocked, and which show external structure;
Fig. 8 be in Fig. 1 catheter sheath and dilator assembling after axonometric chart;
Fig. 9 is the schematic diagram of catheter sheath and dilator rotating separation moment in Fig. 8, which show internal structure;
Figure 10 is the schematic diagram of catheter sheath and dilator rotating separation moment in Fig. 8, which show external structure;
Figure 11 is the schematic diagram in Fig. 9 after catheter sheath and dilator rotating separation;
Figure 12 is the schematic diagram in Figure 10 after catheter sheath and dilator rotating separation;
Figure 13 is the schematic diagram in Fig. 8 after catheter sheath and dilator rotating separation.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail; set forth more details in the following description so that fully understand this utility model; but this utility model obviously can be implemented with multiple this alternate manner described that is different from; those skilled in the art can when doing similar popularization, deduction without prejudice to when this utility model intension according to practical situations, therefore should with the content constraints of this specific embodiment protection domain of the present utility model.
It should be noted that these and follow-up other accompanying drawing all only exemplarily, it is not draw according to the condition of equal proportion, and should not be construed as limiting in this, as to the protection domain of this utility model actual requirement.
As shown in Figure 1, catheter sheath A comprises sheath seat 5 and is connected to the sheath pipe 7 on sheath seat 5, the dilator tube 8 that dilator B comprises dilator seat 1 and is connected on dilator seat 1, and dilator tube 8 is inserted in sheath pipe 7 through sheath seat 5.Be used for sheath seat 5 and dilator seat 1 to lock according to the device of locking catheters sheath A of the present utility model and dilator B, it comprises the clip connection device and tripping mechanism that configure between sheath seat 5 and dilator seat 1, clip connection device is suitable for being pushed in the process of sheath pipe in dilator tube making sheath seat 5 and dilator seat 1 snapping, tripping mechanism is suitable for the locomotivity producing the relative sheath seat of dilator seat in the process of rotating relative to sheath seat at dilator seat, and then forces sheath seat and dilator seat to be threaded off.The implementation of clip connection device and tripping mechanism is more, after will exemplify a preferred embodiment by reference to the accompanying drawings, it is worth mentioning that, clip connection device of the present utility model and tripping mechanism are not limited thereto.Catheter sheath A also comprises the haemostatic valve 4 arranged in sheath seat 5 and the diffusion-induced stress pipe 6 be enclosed within sheath pipe 7 outer circumferential side, and these are the same with existing catheter sheath, do not repeat its details.
As shown in Figures 2 and 3, sheath seat 5 comprises sheath cap, sheath cap comprises cap 2 and lower cap 3, and the outer circumferential side of upper cap 2 is tapered configuration, is similar to bowl-shape, the inner circumferential side of lower cap 3 is tapered configuration, also be similar to bowl-shape, upper cap 2 is seated counterdie 3, and the outer circumferential side of upper cap 2 and the inner circumferential side of lower cap 3 are bonded to each other, upper cap 2 plays cap 3 radially-inwardly to give prominence to relatively, forms back-off 10.Sheath cap is shaped by upper cap 2 and lower cap 3 split, and this is mainly for being convenient to the angle consideration manufactured.In other embodiments, sheath cap also can be one-body molded.
As shown in Figure 4 and Figure 6, the shirt rim 11A that dilator seat 1 has annular and the multiple dog clutch 9 axially stretched out, the external diameter of the circle that multiple dog clutch 9 is formed is greater than the minimum diameter of cap 2.When being pushed in catheter sheath A by dilator B, dog clutch 9 can relatively to move axially and in the inner circumferential side-walls radially-inwardly elastic deformation of upper cap 2 by sheath seat 5, and can with the promotion of dilator seat 1, and dog clutch 9 resilience and back-off 10 fasten, to realize locking.The quantity of dog clutch 9 is not limit, and more than three or can be less than three.Dog clutch 9 and back-off 10 form described clip connection device.The realization of clip connection device is not limited thereto, such as can of sheath cap and dilator seat square become bulge loop, the opposing party forms cannelure, and projection snaps onto in cannelure and also can make saddle 5 and dilator seat 1 snapping.Clip connection device can also realize by other means.
As shown in figure 5 and figure 7, dilator seat 1 has the first wavy shaped configuration 11, and sheath seat 5 has the second wavy shaped configuration 12, and the two structure is similar on geometric meaning, such first wavy shaped configuration 11 and the second wavy shaped configuration 12 just can be complimentary to one another, in chimerism.What is more important, the first wavy shaped configuration 11 and the second wavy shaped configuration 12 are allowed and are relatively rotated with respect to each other, and like this in the process of rotating, force power separated from one another because the inclined-plane between crest and trough can produce one.Those skilled in the art it will be appreciated that the first wavy shaped configuration 11 and the second wavy shaped configuration 12 form described tripping mechanism, but the realization of tripping mechanism is not limited thereto, such as can a side provides in sheath seat 5 with dilator seat 1 dropout inclined-plane, the opposing party provides the abutting part abutting dropout inclined-plane, abutting part also can be inclined-plane, the lift that such as inclined-plane produces in rotation process forces the two to be separated, and aforementioned clip connection device can be made further to be separated.Rotation is mainly converted to rectilinear motion by tripping mechanism, thus produces the power of a straight line separation.
In the foregoing embodiments, wavy shaped configuration can be formed along the portion perimeter of sheath seat 5 and dilator seat 1 or whole periphery.Crest or trough quantity are not limit.Crest can be set in the side of a trough, or both sides all arrange crest.
As shown in Figure 4 and Figure 5, the first wavy shaped configuration 11 is the end face of the shirt rim 11A of the outer circumferential side of dilator seat 1, and the second wavy shaped configuration 12 is the shaft shoulder face of the outer peripheral sidewall of sheath seat 5.
As shown in Figures 9 to 11, in separation process, only need hand-held catheter sheath A and expander B, clockwise or counterclockwise axial rotation dilator seat 1, now without the need to taking rotation direction into account, make itself and sheath seat 5 relative separation until dog clutch 9 departs from from back-off 10, then conductive pipe sheath A and dilator B applies axial separation force and can realize non-jitter separation.
Relative to previous embodiment, snap-lock fixed structure is in catheter sheath and dilator separation process, and make the moment that sheath seat and dilator seat are being separated because patient applies axial separation force, binding force significantly declines between the two.And now patient has little time to adjust separating force, cause the sheath pipe be detained in the blood vessel significantly to be shaken, cause vasospasm or damage.In addition, if saddle 5 is connected by rotary latch-up structures such as screw threads with dilator seat 1, be locking or the process that unlocks all needs to rotate, and only have fixing a direction to rotate could to realize locking or unlocking, increase complex operation degree.Previous embodiment by the rotation of any direction by its structural design, such as, is turned clockwise or is rotated counterclockwise, dilator seat 1 is separated gently with sheath seat 5, avoids the shake of sheath seat 5 when being separated, thus reduces vasospasm and damage.In an embodiment of the present utility model, tripping mechanism also can be configured to rotate in a direction to make clip connection device thread off.
It should be noted that unless otherwise defined, otherwise all technical terms used in aforementioned description have understood identical implication usual with those of ordinary skill in the art.Describe ad hoc approach, device in subject application, but any method similar or of equal value with the method and apparatus described in foregoing teachings and material can use in the practice of this technology.Although quite in detail and by illustrating the embodiment of description technique, described explanation only for being expressly understood, and is not intended to limit.Use various term in the de-scription to pass on the understanding to this technology, should be understood that the implication of described various term extends to the common languages of various term or grammatical variants or form.Also should be understood that when term be finger device or equipment time, described term or name are referred to as the example in the present age and provide, and this technical step is by the restriction of described literal scope.Aforesaid term will be understood to by contemporary term description now, and described aforesaid term reasonably can be interpreted as the derivant of the system subset name that contemporary term or contemporary term comprise.In addition, when not departing from the scope of disclosed technology, any one or more features of any embodiment of technology can with any one or more other characteristics combination of arbitrary embodiment of technology.Further, should understand, this technology is not limited to the embodiment of having set forth in order to illustration, but this technology only defines by the fair deciphering of present application for patent appended claims, comprises the equal authenticity of the gamut enjoyed of being had the right by each element of this technology.Therefore, although this utility model with preferred embodiment openly as above, it is not that any those skilled in the art, not departing from spirit and scope of the present utility model, can make possible variation and amendment for limiting this utility model.Therefore, every content not departing from technical solutions of the utility model, any amendment done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all fall within protection domain that this utility model claim defines.
Claims (10)
1. for the device of the locking and unlocking catheter sheath and dilator, described catheter sheath comprises sheath seat and is connected to the sheath pipe on described sheath seat, described dilator comprises dilator seat and is connected to the dilator tube on described dilator seat, described dilator tube is inserted into described sheath pipe through described sheath seat, it is characterized in that, described device is used for described sheath seat and described dilator seat the locking and unlocking, and be included in the clip connection device and tripping mechanism that configure between described sheath seat and described dilator seat, described clip connection device is suitable for being pushed in the process of described sheath pipe in described dilator tube, make described dilator seat and described sheath seat snapping, described tripping mechanism is suitable in the process of rotating relative to described sheath seat at described dilator seat, makes described dilator produce the locomotivity of relatively described sheath seat, and then forces described sheath seat and described dilator seat to be threaded off.
2. device as claimed in claim 1, it is characterized in that, described tripping mechanism is configured to described dilator seat can be rotated relative to described sheath seat with any turn direction, and and then makes described dilator produce the described locomotivity of relatively described sheath seat.
3. device as claimed in claim 1, it is characterized in that, described tripping mechanism comprises the dropout inclined-plane that at least one party in described sheath seat and described dilator seat provides, and the abutting part on the described dropout inclined-plane of abutting that the opposing party provides, described dilator seat can rotate to make described sheath seat and described dilator seat relative separation by means of described abutting part along the relative motion on described dropout inclined-plane, and then described sheath seat and described dilator are threaded off.
4. device as claimed in claim 3, it is characterized in that, described dropout inclined-plane is the smooth bevel between the crest of wavy shaped configuration and trough.
5. device as claimed in claim 4, it is characterized in that, there is trough any crest both sides of described wavy shaped configuration.
6. device as claimed in claim 4, it is characterized in that, described wavy shaped configuration comprises the first wavy shaped configuration and the second wavy shaped configuration, described dilator seat has the first wavy shaped configuration, described sheath seat has the second wavy shaped configuration, a side in wherein said first wavy shaped configuration and described second wavy shaped configuration provides described dropout inclined-plane, and the opposing party provides described abutting part.
7. device as claimed in claim 6, is characterized in that, is geometric similarity and is fitted together to complimentary to one anotherly between described first wavy shaped configuration and described second wavy shaped configuration.
8. device as claimed in claim 1, is characterized in that, described clip connection device comprises the dog clutch that described dilator seat axially stretches out and the back-off be positioned on described sheath seat, and described sheath seat and described dilator seat are by described dog clutch and described back-off snapping.
9. device as claimed in claim 8, it is characterized in that, described back-off is formed on the inner circumferential sidewall of described sheath seat, described dog clutch can relatively described sheath seat axially to promote and in the radially-inwardly elastic deformation of described inner circumferential side-walls, and described dog clutch can with the promotion of described dilator seat, there is resilience and block mutually with described back-off, to realize described locking.
10. device as claimed in claim 8, it is characterized in that, described sheath seat comprises sheath cap, described sheath cap comprises cap and lower cap, and the outer circumferential side of described upper cap is tapered configuration, and the inner circumferential side of described lower cap is tapered configuration, described upper cap is seated described counterdie, the outer circumferential side of described upper cap and the inner circumferential side of described lower cap are bonded to each other, and the relatively described lower cap of described upper cap is radially-inwardly given prominence to, and forms described back-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277628.6U CN204601342U (en) | 2015-04-30 | 2015-04-30 | The device of locking catheters sheath and dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520277628.6U CN204601342U (en) | 2015-04-30 | 2015-04-30 | The device of locking catheters sheath and dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204601342U true CN204601342U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520277628.6U Withdrawn - After Issue CN204601342U (en) | 2015-04-30 | 2015-04-30 | The device of locking catheters sheath and dilator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204601342U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178227A (en) * | 2015-04-30 | 2016-12-07 | 上海微创医疗器械（集团）有限公司 | Locking catheters sheath and the device of dilator |
| WO2019215623A1 (en) * | 2018-05-08 | 2019-11-14 | Baylis Medical Company Inc. | Coupling mechanisms for medical devices |
| CN114052826A (en) * | 2021-12-03 | 2022-02-18 | 上海玮琅医疗科技有限公司 | Dilator assembly |
| CN115068054A (en) * | 2022-05-24 | 2022-09-20 | 上海玮琅医疗科技有限公司 | Expander subassembly suitable for from expansion device |
-
2015
- 2015-04-30 CN CN201520277628.6U patent/CN204601342U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178227A (en) * | 2015-04-30 | 2016-12-07 | 上海微创医疗器械（集团）有限公司 | Locking catheters sheath and the device of dilator |
| CN106178227B (en) * | 2015-04-30 | 2022-08-12 | 上海微创龙脉医疗器材有限公司 | Device for locking a catheter sheath and a dilator |
| WO2019215623A1 (en) * | 2018-05-08 | 2019-11-14 | Baylis Medical Company Inc. | Coupling mechanisms for medical devices |
| CN112272574A (en) * | 2018-05-08 | 2021-01-26 | 贝利斯医疗公司 | Coupling mechanism for a device |
| JP2021523773A (en) * | 2018-05-08 | 2021-09-09 | ベイリス メディカル カンパニー インコーポレイテッドＢａｙｌｉｓ Ｍｅｄｉｃａｌ Ｃｏｍｐａｎｙ Ｉｎｃ． | Device connection mechanism |
| EP3790619A4 (en) * | 2018-05-08 | 2022-02-16 | Baylis Medical Company Inc. | Coupling mechanisms for medical devices |
| US11684766B2 (en) | 2018-05-08 | 2023-06-27 | Boston Scientific Medical Device Limited | Coupling mechanism for medical devices |
| JP7348915B2 (en) | 2018-05-08 | 2023-09-21 | ボストン サイエンティフィック メディカル デバイス リミテッド | Device coupling mechanism |
| CN114052826A (en) * | 2021-12-03 | 2022-02-18 | 上海玮琅医疗科技有限公司 | Dilator assembly |
| CN114052826B (en) * | 2021-12-03 | 2023-05-26 | 上海玮琅医疗科技有限公司 | Expander assembly |
| CN115068054A (en) * | 2022-05-24 | 2022-09-20 | 上海玮琅医疗科技有限公司 | Expander subassembly suitable for from expansion device |
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Effective date of registration: 20190128 Address after: Room 201, 2nd floor, Building No. 5, 1303 Asia-Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: MICROPORT LONGMAI MEDICAL TECHNOLOGY (JIAXING) Co.,Ltd. Address before: 201203, 501, Newton Road, Zhangjiang hi tech park, Shanghai, Pudong New Area Patentee before: SHANGHAI MICROPORT MEDICAL (GROUP) Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191204 Address after: 201203 Room 102, building 2, No. 501, Newton Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: SHANGHAI MICROPORT LONGMAI MEDICAL EQUIPMENT CO.,LTD. Address before: Room 201, 2nd floor, Building No. 5, 1303 Asia-Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: MICROPORT LONGMAI MEDICAL TECHNOLOGY (JIAXING) Co.,Ltd. |
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Granted publication date: 20150902 Effective date of abandoning: 20220812 |
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Granted publication date: 20150902 Effective date of abandoning: 20220812 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |