阅读说明：本技术 颈椎后路单开门椎板成形专用构件 (Special component for cervical vertebra posterior path single-door vertebral plate forming ) 是由 俞莉敏 于 2020-08-07 设计创作，主要内容包括：本发明公开一种颈椎后路单开门椎板成形专用构件；包括椎板固定板、连接仓板及侧块固定板；连接仓板右上端与椎板固定板相连,左下端与侧块固定板相连；连接仓板下底面靠近其右上端设有尖刺状扎块A；连接仓板下底面靠近其左下端设有尖刺状扎块B；椎板固定板及侧块固定板下底面、尖刺状扎块A及尖刺状扎块B表面均为毛糙面,并设有羟基磷灰石骨诱导涂层。尖刺状扎块A可直接扎入椎板松质骨切面外沿,尖刺状扎块B根据实际椎板成形掀开角度和距离,可直接扎入侧块任意骨面,提供术中即时稳定固定,便于手术操作,安全省时,各构件骨接触面表面采用毛糙化处理的骨诱导涂层,利于成骨细胞贴附骨长入,形成永固成形椎板,可有效避免成形椎板松动移位。(The invention discloses a special component for posterior cervical vertebra one-way open-door vertebral plate forming; comprises a vertebral plate fixing plate, a connecting bin plate and a lateral mass fixing plate; the right upper end of the connecting chamber plate is connected with the vertebral plate fixing plate, and the left lower end is connected with the lateral mass fixing plate; a spine-shaped pricking block A is arranged on the lower bottom surface of the connecting bin plate close to the right upper end of the connecting bin plate; a spine-shaped pricking block B is arranged on the lower bottom surface of the connecting bin plate close to the left lower end of the connecting bin plate; the lower bottom surfaces of the vertebral plate fixing plate and the lateral mass fixing plate, the surfaces of the spine-shaped pricking block A and the spine-shaped pricking block B are rough surfaces, and are provided with hydroxyapatite bone induction coatings. The spine-shaped prick block A can be directly pricked into the outer edge of a spongy bone section of a vertebral plate, the spine-shaped prick block B can be directly pricked into any bone surface of a side block according to the forming and opening angle and distance of the actual vertebral plate, the bone surface can be immediately and stably fixed in the operation, the operation is convenient, the operation is safe and time-saving, the surface of the bone contact surface of each component adopts a bone induction coating subjected to roughening treatment, the bone induction coating is beneficial to the growth of osteoblasts attached to bones, the formed vertebral plate is permanently fixed, and the formed vertebral plate can be effectively prevented from moving.)

1. The utility model provides a special component of cervical vertebra way of escape single-door vertebral plate shaping which characterized in that: comprises a vertebral plate fixing plate, a connecting bin plate and a lateral mass fixing plate;

the upper right end of the connecting bin plate is connected with the vertebral plate fixing plate, and the lower left end of the connecting bin plate is connected with the lateral mass fixing plate; the vertebral plate fixing plate, the connecting bin plate and the lateral mass fixing plate are connected together to form a Z-shaped structure;

a spine-shaped pricking block A which is integrally formed with the lower bottom surface of the connecting cabin plate and used for pricking the outer edge of the vertebral plate cancellous bone section is arranged rightwards near the right upper end of the lower bottom surface of the connecting cabin plate; a spine-shaped pricking block B which is integrally formed with the connecting bin plate and used for pricking the side block is downwards arranged on the lower bottom surface of the connecting bin plate close to the left lower end of the connecting bin plate;

the lower bottom surface of the vertebral plate fixing plate, the lower bottom surface of the connecting bin plate, the lower bottom surface of the lateral mass fixing plate, the surface of the spine-shaped pricking block A and the surface of the spine-shaped pricking block B are rough surfaces, and a hydroxyapatite bone induction coating is arranged on the spine-shaped pricking block A.

2. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of claim 1, wherein: the length of the spine-shaped pricking block A and the length of the spine-shaped pricking block B are both L1; the L1 is 5.0mm-8.0 mm.

3. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of claim 2, wherein: the spine-shaped pricking blocks A and the spine-shaped pricking blocks B are both provided with a plurality of spine-shaped pricking blocks A and a plurality of spine-shaped pricking blocks B; the plurality of spike-shaped pricking blocks A and the plurality of spike-shaped pricking blocks B are arranged in a row.

4. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of claim 3, wherein: the outer wall of the spine-shaped pricking block A is surrounded and uniformly provided with a plurality of clamping rings A, so that a plurality of annular barbs A are formed on the outer wall of the spine-shaped pricking block A; the outer wall of the spine-shaped pricking block B is surrounded and uniformly provided with a plurality of clamping rings B, so that a plurality of annular barbs B are formed on the outer wall of the spine-shaped pricking block B.

5. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of any one of claims 1 to 4, wherein: a fixing mounting hole A is formed in the upper end face of the vertebral plate fixing plate downwards; and the upper end surface of the side block fixing plate is downwards provided with a fixed mounting hole B.

6. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of claim 5, wherein: the bone grafting fixing screw can be used for connecting and installing a bone grafting block to the lower bottom surface of the connecting bin plate;

a fixing screw screwing hole is formed in the upper end face of the connecting bin plate downwards; the bone grafting fixing screw is screwed in the fixing screw screwing hole;

when the bone grafting block is abutted against the lower bottom surface of the connecting cabin plate, the lower end of the bone grafting fixing screw can be screwed into the bone grafting block so as to fix the bone grafting block on the lower bottom surface of the connecting cabin plate.

7. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of claim 6, wherein: at least two bone grafting fixing screws are arranged; the number of the fixing screw screwing holes is equal to that of the bone grafting fixing screws, and the bone grafting fixing screws are uniformly distributed along the length direction of the connecting bin plate.

8. The special component for the posterior cervical vertebra one-door opening vertebral plate forming of claim 6, wherein: the front side and the rear side of the connecting cabin plate are respectively inwards sunken to form at least one group of silk thread winding grooves which are oppositely arranged and used for tying and fixing the bone grafting block to the lower bottom surface of the connecting cabin plate.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a special component for cervical vertebra posterior path single-door vertebral plate forming.

Background

Clinically, for cervical spondylosis, cervical spinal stenosis, cervical ligament ossification and other cervical spinal nerves with multi-segment compression, the most classical operation mode is cervical posterior cervical vertebra one-way open-door laminoplasty spinal canal expansion decompression. In most cervical laminoplasty, however, a laminoplasty titanium plate is used. Most of the commonly used laminoplasty titanium plates do not have the immediate stable supporting and fixing effect, the operation in the operation is completely carried out by an assistant, the operation safety is poor, and the fracture of a laminectomy shaft and even iatrogenic spinal cord injury are easy to occur. Meanwhile, the forming condition of the vertebral plate which is stable for a long time is lacked, the fixation and the support are completely realized by a small screw of a few millimeters between the titanium plate and the vertebral plate side, the loosening of the titanium plate of the screw is easy to occur, the forming fails, and even the probability of the spinal nerves oppression and paralysis is generated.

While the disclosure of patent No. 201811159465.6 entitled "internal fixation plate for the lamina of the cervical vertebral body" shows certain advantages, with the possibility of snap-fastening in immediate correspondence to the incision of the lamina, it still has obvious drawbacks and drawbacks:

particularly, on the one hand, its lower plate and support the backup plate and all need set to longer length, the side can correspond to block to the vertebral plate incision end in and the side piece supports to lean on the end in, because of its length is all longer, make the degree of difficulty big when actual operation, need spend more time, just can correspond it to block to the vertebral plate incision end in and the side piece supports to lean on the end in, so, it is long to make the operation time, increase surgeon's fatigue, on the other hand, to different vertebral plates, the contained angle design between the upper and lower plate generally divides narrow mouth and wide mouth, the degree of difficulty is big when actual operation for the narrow mouth, need spend more time, and the wide mouth is easy, even the vertebral plate takes shape with the titanium plate after, because of its wide mouth lower plate length is long, can be not obedient with the vertebral plate, just so probably form doctor's spinal canal occupy-place narrowly, lead.

Therefore, the existing problems are obvious and need to be solved.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a special component for cervical vertebra posterior one-way open-door laminoplasty.

The technical scheme adopted by the invention for solving the problems in the prior art is as follows: a special component for cervical vertebra posterior single-door vertebral plate forming comprises a vertebral plate fixing plate, a connecting cabin plate and a lateral mass fixing plate;

the upper right end of the connecting bin plate is connected with the vertebral plate fixing plate, and the lower left end of the connecting bin plate is connected with the lateral mass fixing plate; the vertebral plate fixing plate, the connecting bin plate and the lateral mass fixing plate are connected together to form a Z-shaped structure;

a spine-shaped pricking block A which is integrally formed with the lower bottom surface of the connecting cabin plate and used for pricking the outer edge of the vertebral plate cancellous bone section is arranged rightwards near the right upper end of the lower bottom surface of the connecting cabin plate; a spine-shaped pricking block B which is integrally formed with the connecting bin plate and used for pricking the side block is downwards arranged on the lower bottom surface of the connecting bin plate close to the left lower end of the connecting bin plate;

the lower bottom surface of the vertebral plate fixing plate, the lower bottom surface of the connecting bin plate, the lower bottom surface of the lateral mass fixing plate, the surface of the spine-shaped pricking block A and the surface of the spine-shaped pricking block B are rough surfaces, and a hydroxyapatite bone induction coating is arranged on the spine-shaped pricking block A.

The above technical solution is further described as follows:

preferably, the length of the spine-shaped pricking block a and the length of the spine-shaped pricking block B are both L1; the L1 is 5.0mm-8.0 mm.

Preferably, a plurality of the spine-shaped pricking blocks A and a plurality of the spine-shaped pricking blocks B are arranged; the plurality of spike-shaped pricking blocks A and the plurality of spike-shaped pricking blocks B are arranged in a row.

Preferably, the outer wall of the prick-shaped block A is surrounded and uniformly provided with a plurality of clamping rings A, so that a plurality of annular barbs A are formed on the outer wall of the prick-shaped block A; the outer wall of the spine-shaped pricking block B is surrounded and uniformly provided with a plurality of clamping rings B, so that a plurality of annular barbs B are formed on the outer wall of the spine-shaped pricking block B.

Preferably, the upper end surface of the vertebral plate fixing plate is downwards provided with a fixing and mounting hole A; and the upper end surface of the side block fixing plate is downwards provided with a fixed mounting hole B.

Preferably, the bone grafting fixing device also comprises a bone grafting fixing screw which can be used for connecting and installing a bone grafting block to the lower bottom surface of the connecting bin plate;

a fixing screw screwing hole is formed in the upper end face of the connecting bin plate downwards; the bone grafting fixing screw is screwed in the fixing screw screwing hole;

when the bone grafting block is abutted against the lower bottom surface of the connecting cabin plate, the lower end of the bone grafting fixing screw can be screwed into the bone grafting block so as to fix the bone grafting block on the lower bottom surface of the connecting cabin plate.

Preferably, at least two bone grafting fixing screws are arranged; the number of the fixing screw screwing holes is equal to that of the bone grafting fixing screws, and the bone grafting fixing screws are uniformly distributed along the length direction of the connecting bin plate.

Preferably, the front side and the rear side of the connecting bin plate are respectively inwards recessed to form at least one group of silk thread winding grooves which are oppositely arranged and used for tying and fixing the bone grafting block to the lower bottom surface of the connecting bin plate.

The invention has the beneficial effects that:

when the special component for forming the posterior cervical vertebra one-way open-door vertebral plate is specifically implemented, a spine-shaped pricking block A integrally formed with the connecting cabin plate is arranged on the lower bottom surface of the connecting cabin plate, close to the right upper end of the connecting cabin plate, rightwards; a spine-shaped pricking block B integrally formed with the connecting bin plate is downwards arranged on the lower bottom surface of the connecting bin plate close to the left lower end of the connecting bin plate; the length of the spine-shaped pricking block A and the length of the spine-shaped pricking block B are both L1, L1 is 5.0mm-8.0mm, on one hand, when the device is installed, the spine-shaped pricking block A can be directly pricked into the outer edge of a cancellous bone section, the spine-shaped pricking block B can be directly pricked into any bone surface of a lateral block according to the actual vertebral plate forming angle and distance, so that the device is time-saving and labor-saving in operation during installation of the device, an instant stable fixing effect can be provided for an operator, the subsequent vertebral plate forming related operation difficulty is reduced, the safety is greatly improved, on the other hand, in the process of fixing the device, the spine-shaped pricking block A and the spine-shaped pricking block B are shorter in length and 5.0mm-8.0mm, the phenomenon that the spine-shaped pricking block A occupies the cervical vertebral canal and the possibility of compressing the spinal cord cannot occur, in addition, the lower fixing plate bottom surface, Connect under the storehouse board bottom surface, side piece fixed plate bottom surface, the piece A surface is pricked to the point thorn form and piece B surface is the matte surface to be equipped with hydroxyl apatite osteoinduction coating, make can do benefit to osteoblast's is attached, the bone grows into the connection, it is fixed to add this component can be fixed to plant the bone under connecting the storehouse board, thereby do benefit to the bone nature forming vertebral plate that forms forever, can avoid traditional forming device to appear the not hard up aversion of screw titanium board easily, cause the serious consequence of the neural oppression of spinal cord even, so this application is easy and simple to handle and safe and reliable, therefore, the clothes hanger is strong in practicability, clinical use is actually effectual.

Drawings

FIG. 1 is a perspective view of a special component for posterior cervical vertebra one-way open-door vertebral plate forming of the invention;

FIG. 2 is a sectional view showing the entire planar structure of the special cervical posterior single-door laminoplasty component of the present invention;

FIG. 3 is an enlarged view of the spike A of FIG. 2;

FIG. 4 is an enlarged view of the spike-shaped piercing block B of FIG. 2;

FIG. 5 is a first view showing the usage of the special component for posterior cervical vertebra one-way open-door laminoplasty according to the present invention;

FIG. 6 is a second view showing the usage of the special component for posterior cervical vertebra one-way open-door laminoplasty according to the present invention;

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Reference numerals:

a cervical posterior single-door laminoplasty special component 100;

a vertebral plate fixation plate 10;

a fixed mounting hole A101;

a connecting bin plate 20;

a spike-shaped piercing block A201; a clamping ring A2011; a loop barb a 2012; a spike-shaped piercing block B202; a clamping ring B2021; a ring-shaped barb B2022; set screw threaded holes 203; a wire winding groove 204;

a lateral mass fixing plate 30;

a fixed mounting hole B301;

bone graft fixation screws 40;

a cervical vertebra 200;

a lamina 50;

a side block 60;

a cervical spinal canal 70;

a bone graft 300;

Detailed Description

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that the inventive spirit of the present invention can be more clearly and intuitively understood.

Shown in conjunction with fig. 1, 2, 3, 4, 5 and 6;

the invention provides a special component 100 for cervical vertebra posterior single-door vertebral plate forming, which comprises a vertebral plate fixing plate 10, a connecting cabin plate 20 and a lateral mass fixing plate 30;

the right upper end of the connecting bin plate 20 is connected with the vertebral plate fixing plate 10, and the left lower end is connected with the lateral mass fixing plate 30; the vertebral plate fixing plate 10, the connecting cabin plate 20 and the lateral mass fixing plate 30 are connected together to form a Z-shaped structure;

a spine-shaped pricking block A201 which is integrally formed with the connecting cabin plate 20 and used for pricking the outer edge of the spongy bone tangent plane of the vertebral plate 50 is arranged on the lower bottom surface of the connecting cabin plate 20, close to the right upper end of the connecting cabin plate and faces the right direction; a spike-shaped pricking block B202 which is integrally formed with the connecting bin plate 20 and used for pricking the side block 60 is downwards arranged on the lower bottom surface of the connecting bin plate 20 close to the left lower end of the connecting bin plate;

the lower bottom surface of the vertebral plate fixing plate 10, the lower bottom surface of the connecting cabin plate 20, the lower bottom surface of the lateral mass fixing plate 30, the surface of the spine-shaped pricking block A201 and the surface of the spine-shaped pricking block B202 are rough surfaces and are provided with hydroxyapatite bone induction coatings.

Preferably, in this embodiment, the length of the spike-shaped prick block a201 and the length of the spike-shaped prick block B202 are both L1; the L1 is 5.0mm-8.0 mm.

Based on the above, it can be understood that the present application, when embodied, is primarily intended for use as a cervical posterior single-door laminoplasty specific component 100.

Because the lower bottom surface of the connecting bin plate 20 is provided with a spine-shaped pricking block A201 integrally formed with the connecting bin plate rightward near the right upper end of the connecting bin plate; a spine-shaped pricking block B202 integrally formed with the connecting bin plate 20 is downwards arranged on the lower bottom surface of the connecting bin plate 20 close to the left lower end of the connecting bin plate; the length of the prick-shaped block A201 and the length of the prick-shaped block B202 are both L1, and the L1 is 5.0mm-8.0 mm.

And in a preferred scheme, the length of the spine-shaped pricking block A201 and the length of the spine-shaped pricking block B202 are set to three main specifications according to the thickness of the cervical vertebra plate 50 of a patient, namely, the lengths are set to be 5.0mm, 6.5mm or 8.0 mm.

On the one hand, during this application of installation, the piece A201 is pricked to the spine form can directly prick into 50 cancellous bone tangent planes outer edges of vertebral plate, piece B202 is pricked to the spine form according to the vertebral plate of reality and lifts angle and distance, can directly prick into the arbitrary bone surface of lateral mass for during this application installation, labour saving and time saving is got up in the operation, can provide instant stable fixed effect for the art person, makes the relevant operation degree of difficulty of subsequent vertebral plate formation reduce, and the security increases greatly.

On the other hand, in the process of fixing the device, the lengths of the spine-shaped pricking block A201 and the spine-shaped pricking block B202 are shorter and are 5.0mm-8.0mm, so that the possibility of invading the cervical vertebral canal 70 and pressing spinal nerves can be avoided.

In addition, bottom surface under the vertebral plate fixed plate 10, bottom surface under the connection storehouse board 20, bottom surface under the lateral mass fixed plate 30, the spine form pricks a201 surface and the spine form pricks a B202 surface and is the rough surface to be equipped with hydroxyl apatite osteoinduction coating, make and to do benefit to osteoblast's attached, the bone growth goes into to connect, can plant the bone fixedly under connecting storehouse board 20 in addition this component, thereby do benefit to the bone nature forming vertebral plate that forms forever, can avoid traditional forming device later stage to appear the screw titanium board easily and become flexible the aversion, cause the serious consequence of the neural oppression of spinal cord even.

Therefore, the application is simple and convenient to operate, safe, reliable, high in practicability and good in actual effect of clinical use.

Further, in the present technical solution, a plurality of the spike-shaped pricking blocks a201 and a plurality of the spike-shaped pricking blocks B202 are provided; the plurality of the pricked blocks A201 and the plurality of the pricked blocks B202 are arranged in a row, so that the pricked blocks can be better penetrated into the outer edge of the vertebral plate cancellous bone section and the lateral mass correspondingly.

Preferably, the outer wall of the prick-shaped block a201 surrounds and is uniformly provided with a plurality of clamping rings a2011, so that a plurality of annular barbs a2012 are formed on the outer wall of the prick-shaped block a 201; the outer wall of the prick-shaped block B202 is surrounded and uniformly provided with a plurality of clamping rings B2021, so that a plurality of annular barbs B2022 are formed on the outer wall of the prick-shaped block B202.

So, it is a plurality of piece A201 and a plurality of are pricked to spine form piece B202 is pricked corresponding to spine 50 incision outer edge and the side piece 60 incision time of following outward to spine 50 incision outer edge tissue can imbed a plurality ofly in the card solid circle A2011 and by a plurality of cyclic annular barb A2012 reverse embedding for it is fixed more firm each other, and side piece 60 incision outer edge tissue can imbed a plurality of in the card solid circle B2021 and by a plurality of cyclic annular barb B2022 reverse embedding makes it fix equally more firm each other, so, after the improvement, even if get this application when fixing cervical vertebra plate 50 incision, with the cervical vertebra plate 50 between instant fastness of being connected good and difficult pine shift, make this application use safe and reliable more.

Still further, when concrete implementation, this application is roughly the same with fixed titanium plate structure is formed to conventional vertebral plate the fixed mounting hole A101 has been seted up downwards to the upper end face of vertebral plate fixed plate 10 to the fixed mounting hole B301 has been seted up downwards to the upper end face of lateral mass fixed plate 30.

Thereby, the screw is screwed to the cervical vertebral plate 50 at the fixing installation hole a101, and the screw is screwed to the cervical vertebral plate lateral block 60 at the fixing installation hole B301, i.e., the present application can be fixed to the cervical vertebral plate incision.

In a preferred embodiment, the present application is preferably made of a titanium alloy material.

On the basis of the above embodiment, the present application further comprises a bone grafting fixing screw 40 for connecting and mounting a bone grafting block to the lower bottom surface of the connecting chamber plate 20;

wherein, the upper end surface of the connecting storehouse plate 20 is provided with a fixing screw screwing hole 203 downwards; the bone grafting fixing screw 40 is screwed in the fixing screw screwing hole 203;

when the bone graft 300 is abutted against the lower bottom surface of the connecting chamber plate 20, the lower end of the bone graft fixing screw 40 can be screwed into the bone graft 300 to fix the bone graft 300 on the lower bottom surface of the connecting chamber plate 20.

Preferably, at least two bone grafting fixing screws 40 are provided; the number of the fixing screw screwing holes 203 is equal to that of the bone grafting fixing screws 40, and the bone grafting fixing screws 40 are uniformly distributed along the length direction of the connecting cabin plate 20, specifically, as shown in fig. 6.

Therefore, after the bone grafting block 300 is installed on the lower bottom surface of the connecting cabin plate 20, osteogenic fusion can be facilitated to form a permanently enlarged permanently fixed forming vertebral plate, so that the using effect of the application can be optimal.

It is also apparent that in this embodiment, the length of the bone fixation screw 40 is very short, and the distal end thereof is screwed into the bone graft 300 so as not to extend downward and expose into the cervical canal 70, which makes the present application safe and reliable.

Preferably, in the present technical solution, the front and rear sides of the connecting chamber plate 20 are recessed inwards to form at least one set of thread winding grooves 204 which are oppositely arranged and used for tying and fixing the bone grafting block 300 to the lower bottom surface thereof.

In one embodiment, the middle parts of the front and rear sides of the connecting chamber plate 20 are recessed inward to form opposite wire winding grooves 204 for tying and fixing the bone grafting block 300 to the lower bottom surface thereof; in another embodiment, the left end and the right end of the front and back sides of the connecting warehouse plate 20 are respectively recessed inwards to form wire winding grooves 204 which are oppositely arranged and used for tying and fixing the bone grafting block 300 to the lower bottom surface thereof;

so, through the fixed bone grafting piece 300 of bone grafting set screw 40 in connect under the storehouse board 20 behind the bottom surface, encircle with the silk thread again silk thread winding recess 204, can continue to tie up fixed bone grafting piece 300 in connect under the storehouse board 20 bottom surface for bone grafting piece 300 installation fixed effect is better, the silk thread that uses by spacing twine in silk thread winding recess 204 makes can not take place to shift, makes bone grafting piece 300 install more firmly reliable.

And the bone grafting fixing screw 40 can be used singly to fix the bone grafting block 300 on the lower bottom surface of the connecting bin plate 20 or the silk thread can be used singly to fix the bone grafting block 300 on the lower bottom surface of the connecting bin plate 20, and the specific implementation is determined according to the fastening degree of the installation and fixation of the bone grafting block 300.

And, when bone grafting piece 300 need not install, the set screw who sets up on connecting the storehouse board 20 is screwed into hole 203 and is favorable to the operation doctor to see through its spinal cord dura mater decompression effect of visualing, stanchs the venous plexus on spinal cord dura mater surface to and the fixed degree of laminating between this application and cervical vertebra vertebral plate and the side piece of direct observation, make more be favorable to the safe operation of effectively carrying out the operation.

Other embodiments, etc., will not be described herein.

In conclusion, the invention has the advantages of simple integral structure, easy implementation, easy operation, strong practicability, strong specificity and low manufacturing cost, does not need to increase too much cost in the structural improvement and the technical improvement, ensures that the invention has good market popularization value, is very popular and can be effectively popularized.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all changes in equivalent structure or equivalent flow, which are made by using the contents of the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.