CN212142231U - A bone cement mixing device - Google Patents

A bone cement mixing device Download PDF

Info

Publication number
CN212142231U
CN212142231U CN202020555103.5U CN202020555103U CN212142231U CN 212142231 U CN212142231 U CN 212142231U CN 202020555103 U CN202020555103 U CN 202020555103U CN 212142231 U CN212142231 U CN 212142231U
Authority
CN
China
Prior art keywords
rod
stirring
inner ring
cup
bone cement
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
Application number
CN202020555103.5U
Other languages
Chinese (zh)
Inventor
蒋萌雅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Renji Hospital Co Ltd
Original Assignee
Zhengzhou Renji Hospital Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Renji Hospital Co Ltd filed Critical Zhengzhou Renji Hospital Co Ltd
Priority to CN202020555103.5U priority Critical patent/CN212142231U/en
Application granted granted Critical
Publication of CN212142231U publication Critical patent/CN212142231U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The utility model discloses a bone cement stirring device, which comprises a stirring cup, a top cover and a stirring rod, wherein the stirring cup is a transparent cup which can be compressed and folded, is convenient to compress and reduce the occupied space, is convenient to carry, is convenient for a user to observe the conditions in the cup and is connected with the inner ring in a rotating way through an outer ring and an inner ring, when in use, the stirring rod arranged at the bottom end of the inner ring can be driven to stir by rotating the inner ring, and can also be inserted into the stirring rod through a through hole to stir, the stirring rod comprises a bottom rod, a central rod and a holding rod, the bottom rod is connected with the central rod and the holding rod in a rotating way, the stirring rod can be bent, the central rod is clamped into a clamping groove in a square block at the top end of the inner ring, the stirring rod is connected with the inner ring, the stirring rod and the, through the lug effect of sill bar bottom, the person of facilitating the use takes a sample and observes, is convenient for know the stirring effect.

Description

一种骨水泥搅拌装置A bone cement mixing device

技术领域technical field

本实用新型涉及医疗器械技术领域,具体为一种骨水泥搅拌装置。The utility model relates to the technical field of medical devices, in particular to a bone cement mixing device.

背景技术Background technique

随着医疗事业的飞速发展、医疗设备的不断更新换代,近几年我国医疗器械市场的需求不断增加,与此同时推动者医疗器械行业的快速发展,骨水泥是一种骨科手术中常用的生物材料,其包括两部分:颗粒粉剂与单体液剂,手术时需要将颗粒粉剂与液剂搅拌混匀,变成膏状后即可使用,临床上常用的混匀装置为搅拌碗与搅拌棒,使用时为开放式搅拌,容易造成手术台混乱,气味难闻且具有一定的毒性,不利于医护人员的健康,所以急需一种骨水泥搅拌装置来解决上述问题。With the rapid development of the medical industry and the continuous upgrading of medical equipment, the demand for my country's medical device market has continued to increase in recent years. At the same time, it has promoted the rapid development of the medical device industry. Bone cement is a kind of biological commonly used in orthopedic surgery. The material consists of two parts: granular powder and monomer liquid. During surgery, the granular powder and liquid need to be stirred and mixed, and it can be used after turning into a paste. The mixing devices commonly used in clinical practice are mixing bowls and stirring rods. It is used for open stirring, which is likely to cause confusion on the operating table, unpleasant smell and certain toxicity, which is not conducive to the health of medical staff. Therefore, a bone cement stirring device is urgently needed to solve the above problems.

发明内容SUMMARY OF THE INVENTION

本实用新型提供一种骨水泥搅拌装置,可以有效解决上述背景技术中提出常用的混匀装置为搅拌碗与搅拌棒,使用时为开放式搅拌,容易造成手术台混乱,气味难闻且具有一定的毒性,不利于医护人员的健康的问题。The utility model provides a bone cement mixing device, which can effectively solve the problem that the commonly used mixing devices proposed in the above-mentioned background art are mixing bowls and mixing rods, which are used for open mixing, which is likely to cause confusion on the operating table, unpleasant odor and certain characteristics. The toxicity is not conducive to the health of medical staff.

为实现上述目的,本实用新型提供如下技术方案:一种骨水泥搅拌装置,包括搅拌杯、顶盖和搅拌棒,所述顶盖包括外环和内环,外环与搅拌杯顶部相连,内环位于外环中心位置处,且内环与外环转动连接,所述内环底部均匀可拆卸式连接有至少一个搅拌杆,内环顶端安装有方块,所述方块顶部开设有卡槽,所述内环中心位置处开设有通孔,所述搅拌棒通过通孔插入搅拌杯内部,所述搅拌棒包括底杆、中心杆和握杆,底杆一端与中心杆一端和中心杆另一端与握杆一端均转动连接,所述底杆另一端安装有凸块,中心杆与卡槽卡接。In order to achieve the above purpose, the present invention provides the following technical solutions: a bone cement mixing device, comprising a mixing cup, a top cover and a stirring rod, the top cover includes an outer ring and an inner ring, the outer ring is connected with the top of the mixing cup, and the inner ring is connected to the top of the mixing cup. The ring is located at the center of the outer ring, and the inner ring is rotatably connected with the outer ring. The bottom of the inner ring is evenly and detachably connected with at least one stirring rod. A through hole is opened at the central position of the inner ring, and the stirring rod is inserted into the inside of the stirring cup through the through hole. The stirring rod includes a bottom rod, a center rod and a grip rod. One end of the grip rod is connected in rotation, the other end of the bottom rod is provided with a protruding block, and the center rod is clamped with the card slot.

优选的,所述搅拌杯为一种可压缩折叠的透明杯。Preferably, the stirring cup is a compressible and foldable transparent cup.

优选的,所述搅拌杯顶端安装有金属环,所述外环套接在金属环外侧。Preferably, a metal ring is installed on the top of the stirring cup, and the outer ring is sleeved on the outside of the metal ring.

优选的,所述外环内部设有环形滑槽,内环通过边部的环形定位块插入环形滑槽内部,且环形定位块可在环形滑槽内部转动。Preferably, an annular chute is provided inside the outer ring, the inner ring is inserted into the annular chute through the annular positioning block on the edge, and the annular positioning block can rotate inside the annular chute.

优选的,所述内环底端均匀设有连接管,所述搅拌杆与顶端与连接管插接。Preferably, the bottom end of the inner ring is evenly provided with a connecting pipe, and the stirring rod and the top end are inserted into the connecting pipe.

优选的,所述底杆与中心杆通过铰链转动连接,所述中心杆与握杆通过铰链转动连接。Preferably, the bottom rod and the center rod are rotatably connected through a hinge, and the center rod and the grip rod are rotatably connected through a hinge.

与现有技术相比,本实用新型的有益效果:本实用新型结构科学合理,使用安全方便,设置有搅拌杯,为一种可压缩折叠的的透明杯,便于压缩减少占用空间,方便携带,同时便于使用者观察杯内情况,通过外环和内环转连接,使用时可通过转动内环,带动内环底端布设的搅拌杆进行搅拌工作,同时也可通过通孔插入搅拌棒进行搅拌,搅拌棒包括底杆、中心杆和握杆,且底杆与中心杆和中心杆和握杆之间均转动连接,可使得搅拌棒进行弯折,通过中心杆卡入内环顶端方块内部的卡槽内部,使得搅拌棒与内环相连,可通过转动搅拌棒带动内环及其顶端的搅拌杆转动进行搅拌工作,操作简单,使用方便可靠,通过底杆底端的凸块作用,方便使用者进行取样观察,便于了解搅拌效果。Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model has a scientific and reasonable structure, is safe and convenient to use, and is provided with a stirring cup, which is a compressible and foldable transparent cup, which is easy to compress, reduces the occupied space, and is convenient to carry. At the same time, it is convenient for the user to observe the situation in the cup. It is connected by the outer ring and the inner ring. When in use, the stirring rod arranged at the bottom of the inner ring can be driven by rotating the inner ring to perform stirring work. At the same time, the stirring rod can be inserted through the through hole for stirring. , the stirring rod includes a bottom rod, a center rod and a grip rod, and the bottom rod and the center rod and the center rod and the grip rod are all connected in rotation, so that the stirring rod can be bent, and the center rod is clamped into the inner ring of the top square of the inner ring. Inside the slot, the stirring rod is connected to the inner ring, and the stirring rod can be rotated to drive the inner ring and the stirring rod at the top to rotate. Take samples for observation to understand the stirring effect.

附图说明Description of drawings

附图用来提供对本实用新型的进一步理解,并且构成说明书的一部分,与本实用新型的实施例一起用于解释本实用新型,并不构成对本实用新型的限制。The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

在附图中:In the attached image:

图1是本实用新型搅拌装置的结构示意图;Fig. 1 is the structural representation of the stirring device of the present utility model;

图2是本实用新型顶盖的结构示意图;Fig. 2 is the structural representation of the top cover of the present invention;

图3是本实用新型顶盖底部的结构示意图;Fig. 3 is the structural representation of the bottom of the top cover of the present invention;

图4是本实用新型搅拌棒的结构示意图;Fig. 4 is the structural representation of the stirring rod of the present utility model;

图5是本实用新型搅拌棒弯折后的结构示意图;Fig. 5 is the structural schematic diagram of the utility model after the stirring rod is bent;

图6是本实用新型搅拌杯压缩折叠后的结构示意图;6 is a schematic structural diagram of the stirring cup of the present invention after being compressed and folded;

图7是本实用新型搅拌棒与顶盖组装后的结构示意图;Fig. 7 is the structural schematic diagram of the utility model after the stirring rod and the top cover are assembled;

图8是本实用新型搅拌装置工作时的结构示意图;8 is a schematic structural diagram of the stirring device of the present invention when it is working;

图9是本实用新型顶盖内部的结构示意图;Fig. 9 is the structural representation inside the top cover of the present invention;

图中标号:1、搅拌杯;2、顶盖;3、外环;4、内环;5、连接管;6、搅拌杆;7、方块;8、卡槽;9、通孔;10、搅拌棒;11、底杆;12、中心杆;13、握杆;14、凸块;15、铰链;16、环形滑槽;17、环形定位块;18、金属环。Labels in the figure: 1, mixing cup; 2, top cover; 3, outer ring; 4, inner ring; 5, connecting pipe; 6, stirring rod; 7, square; 8, card slot; 9, through hole; 10, Stirring rod; 11, bottom rod; 12, center rod; 13, grip rod; 14, bump; 15, hinge; 16, annular chute; 17, annular positioning block; 18, metal ring.

具体实施方式Detailed ways

以下结合附图对本实用新型的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本实用新型,并不用于限定本实用新型。The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, but not to limit the present utility model.

实施例:如图1所示,一种骨水泥搅拌装置,包括搅拌杯1、顶盖2和搅拌棒10,如图2-3所示,顶盖2包括外环3和内环4,外环3与搅拌杯1顶部相连,内环4位于外环3中心位置处,且内环4与外环3转动连接,内环4底部均匀可拆卸式连接有至少一个搅拌杆6,内环4顶端安装有方块7,方块7顶部开设有卡槽8,内环4中心位置处开设有通孔9,搅拌棒10通过通孔9插入搅拌杯1内部,如图4-5所示,搅拌棒10包括底杆11、中心杆12和握杆13,底杆11一端与中心杆12一端和中心杆12另一端与握杆13一端均转动连接,底杆11另一端安装有凸块14,中心杆12与卡槽8卡接。Example: As shown in Figure 1, a bone cement mixing device includes a mixing cup 1, a top cover 2 and a stirring rod 10. As shown in Figures 2-3, the top cover 2 includes an outer ring 3 and an inner ring 4. The ring 3 is connected to the top of the stirring cup 1, the inner ring 4 is located at the center of the outer ring 3, and the inner ring 4 is connected in rotation with the outer ring 3, and the bottom of the inner ring 4 is evenly and detachably connected with at least one stirring rod 6, and the inner ring 4 A block 7 is installed at the top, a slot 8 is formed on the top of the block 7, a through hole 9 is opened at the center of the inner ring 4, and the stirring rod 10 is inserted into the stirring cup 1 through the through hole 9, as shown in Figure 4-5, the stirring rod 10 includes a bottom rod 11, a center rod 12 and a grip rod 13. One end of the bottom rod 11 is rotatably connected to one end of the center rod 12 and the other end of the center rod 12 is rotatably connected to one end of the grip rod 13. The other end of the bottom rod 11 is provided with a bump 14. The rod 12 is clamped with the card slot 8 .

优选的,如图6所示,搅拌杯1为一种可压缩折叠的透明杯,可将搅拌杯1压缩折叠,降低装置的占用空间,方便携带和储存。Preferably, as shown in FIG. 6 , the stirring cup 1 is a compressible and foldable transparent cup, and the stirring cup 1 can be compressed and folded, which reduces the occupied space of the device and facilitates portability and storage.

本实用新型的工作原理及使用流程:如图7-9所示,搅拌杯1顶端安装有金属环18,外环3套接在金属环18外侧,使得顶盖2与搅拌杯1相连,搅拌棒10通过通孔9插入搅拌杯1内部,可利用搅拌棒10对搅拌杯1内部的骨水泥进行搅拌,需要提高搅拌力度时,内环4底端均匀设有连接管5,搅拌杆6与顶端与连接管5插接,将搅拌杆6插入连接管5内部,并根据需求插入合适数量的搅拌杆6,底杆11与中心杆12通过铰链15转动连接,中心杆12与握杆13通过铰链15转动连接,弯折中心杆12,使得中心杆12与底杆11垂直,并使得中心杆12卡入方块7的卡槽8内部,使得中心杆12与方块7相连,弯折握杆13,使其与中心杆12垂直,搅拌时,手握握杆13,转动握杆13,外环3内部设有环形滑槽16,内环4通过边部的环形定位块17插入环形滑槽16内部,且环形定位块17可在环形滑槽16内部转动,通过中心杆12带动内环4在外环3内部转动,从而使得内环4底部的搅拌杆6进行搅拌工作,操作简单,使用便捷,搅拌完成后摆动中心杆12和握杆13,使其与底杆11共线,方便取出搅拌棒10,也可通过搅拌棒10底端的凸块14进行取样取样观察,便于了解搅拌效果。The working principle and use process of the utility model: As shown in Figures 7-9, a metal ring 18 is installed on the top of the stirring cup 1, and the outer ring 3 is sleeved on the outside of the metal ring 18, so that the top cover 2 is connected with the stirring cup 1, and stirring The rod 10 is inserted into the mixing cup 1 through the through hole 9, and the bone cement inside the mixing cup 1 can be stirred by the stirring rod 10. When the stirring strength needs to be increased, the bottom end of the inner ring 4 is evenly provided with a connecting pipe 5, and the stirring rod 6 is connected to the mixing cup 1. The top end is plugged with the connecting pipe 5, the stirring rod 6 is inserted into the connecting pipe 5, and an appropriate number of stirring rods 6 are inserted according to the requirements. The hinge 15 is rotatably connected, and the center rod 12 is bent so that the center rod 12 is perpendicular to the bottom rod 11, and the center rod 12 is snapped into the slot 8 of the block 7, so that the center rod 12 is connected with the block 7, and the grip rod 13 is bent. , so that it is perpendicular to the center rod 12. When stirring, hold the grip rod 13 and rotate the grip rod 13. The outer ring 3 is provided with an annular chute 16, and the inner ring 4 is inserted into the annular chute 16 through the annular positioning block 17 on the side. Inside, the annular positioning block 17 can be rotated inside the annular chute 16, and the inner ring 4 is driven to rotate inside the outer ring 3 by the central rod 12, so that the stirring rod 6 at the bottom of the inner ring 4 can perform stirring work, which is easy to operate and easy to use. After the stirring is completed, swing the center rod 12 and the grip rod 13 to make them collinear with the bottom rod 11, which is convenient for taking out the stirring rod 10, and sampling and observing through the bump 14 at the bottom of the stirring rod 10, so as to understand the stirring effect.

最后应说明的是:以上所述仅为本实用新型的优选实例而已,并不用于限制本实用新型,尽管参照前述实施例对本实用新型进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。Finally, it should be noted that the above is only a preferred example of the present utility model, and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1.一种骨水泥搅拌装置,其特征在于:包括搅拌杯(1)、顶盖(2)和搅拌棒(10),所述顶盖(2)包括外环(3)和内环(4),外环(3)与搅拌杯(1)顶部相连,内环(4)位于外环(3)中心位置处,且内环(4)与外环(3)转动连接,所述内环(4)底部均匀可拆卸式连接有至少一个搅拌杆(6),内环(4)顶端安装有方块(7),所述方块(7)顶部开设有卡槽(8),所述内环(4)中心位置处开设有通孔(9),所述搅拌棒(10)通过通孔(9)插入搅拌杯(1)内部,所述搅拌棒(10)包括底杆(11)、中心杆(12)和握杆(13),底杆(11)一端与中心杆(12)一端和中心杆(12)另一端与握杆(13)一端均转动连接,所述底杆(11)另一端安装有凸块(14),中心杆(12)与卡槽(8)卡接。1. A bone cement mixing device, characterized in that it comprises a mixing cup (1), a top cover (2) and a stirring rod (10), and the top cover (2) comprises an outer ring (3) and an inner ring (4). ), the outer ring (3) is connected to the top of the mixing cup (1), the inner ring (4) is located at the center of the outer ring (3), and the inner ring (4) is rotatably connected to the outer ring (3). (4) At least one stirring rod (6) is evenly and detachably connected at the bottom, a block (7) is installed on the top of the inner ring (4), and a card slot (8) is opened on the top of the block (7). (4) A through hole (9) is provided at the center position, the stirring rod (10) is inserted into the stirring cup (1) through the through hole (9), and the stirring rod (10) includes a bottom rod (11), a central The rod (12) and the grip rod (13), one end of the bottom rod (11) and one end of the center rod (12) and the other end of the center rod (12) and one end of the grip rod (13) are rotatably connected, the bottom rod (11) A convex block (14) is installed at the other end, and the central rod (12) is clamped with the card slot (8). 2.根据权利要求1所述的一种骨水泥搅拌装置,其特征在于:所述搅拌杯(1)为一种可压缩折叠的透明杯。2 . The bone cement mixing device according to claim 1 , wherein the mixing cup ( 1 ) is a compressible and foldable transparent cup. 3 . 3.根据权利要求1所述的一种骨水泥搅拌装置,其特征在于:所述搅拌杯(1)顶端安装有金属环(18),所述外环(3)套接在金属环(18)外侧。3 . The bone cement mixing device according to claim 1 , wherein a metal ring ( 18 ) is installed on the top of the mixing cup ( 1 ), and the outer ring ( 3 ) is sleeved on the metal ring ( 18 ). 4 . ) outside. 4.根据权利要求1所述的一种骨水泥搅拌装置,其特征在于:所述外环(3)内部设有环形滑槽(16),内环(4)通过边部的环形定位块(17)插入环形滑槽(16)内部,且环形定位块(17)可在环形滑槽(16)内部转动。The bone cement mixing device according to claim 1, characterized in that: the outer ring (3) is provided with an annular chute (16) inside, and the inner ring (4) passes through the annular positioning block ( 17) Insert into the annular chute (16), and the annular positioning block (17) can rotate inside the annular chute (16). 5.根据权利要求1所述的一种骨水泥搅拌装置,其特征在于:所述内环(4)底端均匀设有连接管(5),所述搅拌杆(6)与顶端与连接管(5)插接。5 . The bone cement mixing device according to claim 1 , wherein the bottom end of the inner ring ( 4 ) is evenly provided with a connecting pipe ( 5 ), and the stirring rod ( 6 ) and the top end are connected with the connecting pipe. 6 . (5) Plug in. 6.根据权利要求1所述的一种骨水泥搅拌装置,其特征在于:所述底杆(11)与中心杆(12)通过铰链(15)转动连接,所述中心杆(12)与握杆(13)通过铰链(15)转动连接。6 . The bone cement mixing device according to claim 1 , wherein the bottom rod ( 11 ) and the central rod ( 12 ) are rotatably connected through a hinge ( 15 ), and the central rod ( 12 ) is connected to the grip The rod (13) is rotatably connected by a hinge (15).
CN202020555103.5U 2020-04-15 2020-04-15 A bone cement mixing device Expired - Fee Related CN212142231U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020555103.5U CN212142231U (en) 2020-04-15 2020-04-15 A bone cement mixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020555103.5U CN212142231U (en) 2020-04-15 2020-04-15 A bone cement mixing device

Publications (1)

Publication Number Publication Date
CN212142231U true CN212142231U (en) 2020-12-15

Family

ID=73718949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020555103.5U Expired - Fee Related CN212142231U (en) 2020-04-15 2020-04-15 A bone cement mixing device

Country Status (1)

Country Link
CN (1) CN212142231U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113116492A (en) * 2021-04-21 2021-07-16 无锡市第九人民医院 A operation cover for among bone cement modulation process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113116492A (en) * 2021-04-21 2021-07-16 无锡市第九人民医院 A operation cover for among bone cement modulation process

Similar Documents

Publication Publication Date Title
CN212142231U (en) A bone cement mixing device
CN209264323U (en) A kind of just sample collector
CN212592357U (en) Curettage device for gynecological treatment
CN206473303U (en) A kind of improved vaginal speculum
CN215694072U (en) Physical examination center blood sampling blood storage case
CN108693006A (en) A kind of faecal microbiota inspection preliminary treatment device
CN214908251U (en) Sharp instrument box for operating room
CN210873193U (en) A kind of disinfection spraying device for medical care
CN210019437U (en) A urine sampling device for endocrinology and metabolism
CN217067081U (en) Gastroenterology is clinical with vomitus collection device
CN216082200U (en) a urine collection bucket
CN107693363A (en) The medical boiling pot for traditional Chinese medicine for being easy to handle residue
CN219320321U (en) Sample adding device of breast milk property identification analyzer
CN212514608U (en) Anti-endometrium antibody determination kit
CN210844383U (en) Digestion nursing vomitus collection device
CN212237556U (en) A special separator for umbilical cord tissue blocks
CN221830646U (en) 24-hour urine protein quantitative storage device
CN220276821U (en) Test tube oscillator for inspection
CN221787416U (en) A nursing medicine feeding device
CN216294263U (en) Combined dismounting type angiography operation bag
CN219235446U (en) A push-type opener
CN209075707U (en) It is portable to pull out dials
CN219423353U (en) A medical disinfection bucket
CN221963680U (en) Medical scissors with adjustable angle
CN210993958U (en) A manual urine agitator

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201215