Anti-loosening needle threading clamp for surgical sutureTechnical Field
The invention relates to the field of medical instruments, in particular to an anti-loosening needle threading clamp for surgical suture.
Background
Suture forceps are a type of hand-held instrument used in many surgical procedures, and can be used for incision closure in laparoscopic procedures, suturing of skin wounds, or suturing of bleeding vessels. In hernia repair procedures, the tool may be used to attach a repair material (e.g., mesh) to the inside of the abdominal wall or to separate the abdominal organs on the abdominal wall, helping to prevent adhesion formation. The small size of the instrument enables the surgeon to close a small wound without making a large incision.
However, in the prior art, the clamping force of the traditional needle threading clamp on the needle is limited, and when the needle is clamped to assist in suturing a wound, the needle easily slides with the needle threading clamp, so that the work efficiency of suturing a wound of a patient is reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an anti-loosening needle threading clamp for surgical suture.
In order to achieve the above purpose, the anti-loosening needle threading clamp for surgical suture comprises a first clamping piece and a suture needle clamping device, wherein the surface of the first clamping piece is rotationally connected with a second clamping piece, the lower surfaces of the first clamping piece and the second clamping piece are fixedly connected with holding driving rods, the surfaces of the first clamping piece and the second clamping piece are provided with the suture needle clamping device, the suture needle clamping device comprises two circular arc grooves, the two circular arc grooves are respectively formed in the surfaces of the first clamping piece and the second clamping piece, the inner wall of each circular arc groove is connected with a sliding plate in a sliding mode, one end of each sliding plate, far away from the first clamping piece, is fixedly connected with a supporting plate, the middle of each supporting plate is in threaded connection with a screw, and one ends of the two screws, far away from the supporting plate, are respectively clamped with the first clamping piece and the second clamping piece.
Further, one sides of the first clamping piece and the second clamping piece, which are far away from the supporting plate, are fixedly connected with baffle plates.
Further, two first springs are uniformly and fixedly connected to one side, far away from the circular arc groove, of the sliding plate, a clamping plate is fixedly connected to one end, far away from the sliding plate, of the first springs, an anti-slip pad is fixedly connected to one side, far away from the first springs, of the clamping plate, the size of the anti-slip pad is matched with the size of the clamping plate, a limiting rod is slidably connected to the inside of the first springs, one end of the limiting rod is fixedly connected with the sliding plate, one end, far away from the sliding plate, of the limiting rod is slidably connected with the clamping plate, the baffle is L-shaped, rubber pads are fixedly connected to one sides, close to each other, of the two sliding plates, and one sides, close to each other, of the two rubber pads are arc-shaped.
Further, a limiting device is arranged on the surface of the first clamping piece and comprises a first clamping plate, the surface of the first clamping plate is fixedly connected with the first clamping piece, two elastic cloths are uniformly and fixedly connected to the surface of the first clamping plate, one end of each elastic cloth, far away from the first clamping plate, is slidably connected with a second clamping plate, the surface of each second clamping plate is fixedly connected with the second clamping piece, one end, far away from the second clamping plate, of each elastic cloth is fixedly connected with a rotating shaft, and two ends of each rotating shaft are rotatably connected with the second clamping plate.
Further, one end of the rotating shaft is fixedly connected with a handle, and anti-slip bulges are uniformly arranged on the surface of the handle.
Further, clamping holes are uniformly formed in one side, far away from the rotating shaft, of the handle, the inner wall of each clamping hole is connected with a bolt in a sliding mode, and one side, far away from the handle, of each bolt is clamped with the second clamping piece.
The surface of the baffle is further provided with a cutting device, the cutting device comprises a fixed plate, the surface of the fixed plate is fixedly connected with the baffle, the surface of the fixed plate is slidably connected with a movable plate, one end of the movable plate, which is far away from the fixed plate, is fixedly connected with a connecting plate, one side of the connecting plate, which is close to the movable plate, is uniformly and fixedly connected with a second spring, one end of the second spring, which is far away from the connecting plate, is fixedly connected with the fixed plate, and one end of the movable plate, which is far away from the fixed plate, is clamped with a blade.
The movable plate is characterized in that a connecting cloth is fixedly connected to one side, far away from the movable plate, of the connecting plate, a hook is fixedly connected to one end, far away from the connecting plate, of the connecting cloth, a retaining ring is connected to one end, far away from the connecting cloth, of the hook in a sliding mode, and one end, far away from the hook, of the retaining ring is fixedly connected with the baffle.
Further, a sliding groove is formed in one end, far away from the connecting plate, of the moving plate, a sliding block is connected to the inner wall of the sliding groove in a sliding mode, and one side, far away from the inner wall of the sliding groove, of the sliding block is fixedly connected with the blade.
Compared with the prior art, the invention has the advantages and positive effects that,
1. In the invention, by arranging the suture needle clamping device, when a wound of a patient needs to be sutured, the disinfected two sliding plates are firstly slid into the circular arc grooves of the first clamping piece and the second clamping piece respectively, the screw rod is rotated at the moment, the screw rod can fix the two sliding plates on the surfaces of the first clamping piece and the second clamping piece respectively by virtue of the screw thread, then the two holding driving rods are pulled, at the moment, the two holding driving rods respectively drive the first clamping piece and the second clamping piece to rotate, then the first clamping piece and the second clamping piece move to the position of the needle, then the first clamping piece and the second clamping piece clamp the circular arc surface of the needle, one end of the needle with the suture thread is contacted with the surfaces of the two baffle plates, at the moment, the two clamping plates on the two sliding plates are respectively clamped by the elastic force of the first spring, at the moment, the anti-slip pad on one side, which is close to each other, is contacted with the circular arc surface of the needle, the anti-slip pad on the surface of the clamping plate has the effect of increasing the friction force between the needle and the clamping plate, the situation that the needle and the two clamping plates slide when the first clamping piece and the second clamping piece clamp the needle again is avoided, the limiting rod has the effect of limiting the elastic direction of the first spring and further limiting the moving position of the clamping plate, then the first clamping piece and the second clamping piece are moved, the clamping plate drives the needle to be pricked into the skin of a wound of a patient, the baffle has the effect of assisting in pushing the needle to better prick into the skin, the first clamping piece and the second clamping piece are overturned for one hundred eighty degrees after the needle passes through the skin, then the clamping plate clamps the needle, the needle is pulled out from the other end of the skin, thereby achieving the effect of assisting the needle to suture the wound, wherein the rubber pad has the effect of further fixing the needle, the problem that the clamping force of the traditional needle threading clamp is limited, when the clamping needle is used for assisting in suturing the wound, the needle can slide with the needle threading clip easily, so that the problem of the work efficiency of suturing the wound of a patient is solved.
2. According to the invention, by arranging the cutting device, when a wound is to be sewn, the disinfected blade upper sliding block is aligned to the moving plate when the suture of the needle is to be cut, then the sliding block slides in along the sliding groove of the moving plate, the sliding block and the sliding groove have the effect of conveniently installing the blade and detaching the blade, then the hook is pulled out from the buckle of the baffle, at the moment, the second spring can pull the connecting plate to drive the moving plate to move, the moving plate drives the blade to move, the tips of the two blades can contact the suture surface of the needle, the two blades can cut the suture of the needle at the moment, the effect of cutting the redundant suture after the sewing is finished is achieved, the hook is pulled after the cutting is finished, the hook is hooked on the buckle, the connecting cloth can fix the position of the connecting plate, at the moment, the position of the moving plate is fixed, the position of the blade is fixed, the effect of conveniently cutting the suture next time is achieved, the traditional suture clip can only assist the needle to move, and the suture cutting efficiency is reduced after the needle is finished, and the suture is needed.
3. According to the invention, the limiting device is arranged, after the needle and thread clamp is used, the bolt is pulled firstly to enable the bolt to be pulled out of the clamping hole of the handle, then the handle is rotated, the handle drives the rotating shaft to rotate, the rotating shaft starts to wind the elastic cloth, the length of the elastic cloth is reduced, the elastic cloth pulls the first clamping plate to move towards the direction close to the second clamping plate, the first clamping plate and the second clamping plate can fix the two holding driving rods in the middle, the effect of fixing the positions of the first clamping piece and the second clamping piece is achieved, then the bolt is clamped into the clamping hole of the handle again, the position of the handle is fixed, the effect of fixing the position of the rotating shaft is achieved, and the problems that when a doctor carries a medical kit to carry out an operation of the needle and thread clamp, the needle and thread clamp is easy to open when jolt, and the open needle and thread clamp is easy to disturb other medicines are solved.
Drawings
FIG. 1 is a schematic perspective view showing an anti-loosening needle threading clip for surgical suture;
FIG. 2 is a schematic view of the left side of FIG. 1 showing an anti-loosening needle threading clip for surgical suture according to the present invention;
FIG. 3 is a schematic view showing a part of the structure of the anti-loosening needle threading clip for surgical suture in FIG. 1;
FIG. 4 is a schematic view showing a part of a suture needle clamping device with a loosening prevention needle threading clamp for surgical suture according to the present invention;
FIG. 5 is a schematic view showing a structure of a clipping device of a loosening-preventing needle threading clip for surgical suture;
FIG. 6 is a schematic view showing a part of the structure of the anti-loosening needle threading clip for surgical suture in a disassembled mode, which is shown in FIG. 5;
FIG. 7 is a schematic view showing a part of a limiting device for a loosening prevention needle threading clip for surgical suture;
Fig. 8 is a schematic structural view of a loosening prevention needle threading clip limiting device for surgical suture.
The legend is that a first clamping piece, a second clamping piece, a holding driving rod, a 4-suture needle clamping device, 401, an arc groove, 402, a sliding plate, 403, a first spring, 404, a clamping plate, 405, a supporting plate, 406, a screw rod, 407, a baffle, 408, a rubber pad, 409, an anti-slip pad, 410, a limiting rod, 5, a cutting device, 51, a fixed plate, 52, a moving plate, 53, a connecting plate, 54, a second spring, 55, a blade, 56, a connecting cloth, 57, a hook, 58, a sliding groove, 59, a sliding block, 6, a limiting device, 61, a first clamping plate, 62, an elastic cloth, 63, a second clamping plate, 64, a rotating shaft, 65, a handle, 66 and a bolt.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
In embodiment 1, as shown in fig. 1-8, the invention provides an anti-loosening needle threading clamp for surgical suture, which comprises a first clamping piece 1 and a suture needle clamping device 4, wherein the surface of the first clamping piece 1 is rotationally connected with a second clamping piece 2, the lower surfaces of the first clamping piece 1 and the second clamping piece 2 are fixedly connected with a holding driving rod 3, and the surfaces of the first clamping piece 1 and the second clamping piece 2 are provided with the suture needle clamping device 4.
The specific arrangement and function of the needle holding device 4, the cutting device 5 and the limiting device 6 will be described in detail.
As shown in fig. 3 and 4, the suture needle clamping device 4 comprises two arc grooves 401, the two arc grooves 401 are respectively arranged on the surfaces of the first clamping piece 1 and the second clamping piece 2, the inner wall of the arc groove 401 is connected with a sliding plate 402 in a sliding way, one side of the sliding plate 402 far away from the arc groove 401 is uniformly and fixedly connected with two first springs 403, firstly, the two disinfected sliding plates 402 are respectively slid into the arc grooves 401 of the first clamping piece 1 and the second clamping piece 2, at the moment, a screw 406 is rotated, the screw 406 can respectively fix the two sliding plates 402 on the surfaces of the first clamping piece 1 and the second clamping piece 2 by means of threads, then a holding driving rod 3 is pulled, at the moment, the holding driving rod 3 drives the first clamping piece 1 and the second clamping piece 2 to rotate, the first clamping piece 1 and the second clamping piece 2 clamp the arc surface of the needle, one end of the first springs 403 far away from the sliding plate 402 is fixedly connected with a clamping plate 404, one end of the sliding plate 402 far away from the first clamping piece 1 is fixedly connected with a supporting plate 405, the middle part of the supporting plate 405 is in threaded connection with a screw 406, one end of the two screws 406 far away from the supporting plate 405 is respectively clamped with the first clamping piece 1 and the second clamping piece 2, one sides of the first clamping piece 1 and the second clamping piece 2 far away from the supporting plate 405 are fixedly connected with a baffle 407, the baffle 407 is L-shaped, one sides of the two sliding plates 402 close to each other are fixedly connected with a rubber pad 408, the baffle 407 has the effect of assisting in pushing the needle to better penetrate the skin, after the needle passes through the skin, the first clamping piece 1 and the second clamping piece 2 are overturned for one hundred eighty degrees, then the clamping plate 404 is clamped by the needle, the anti-skid pads 409 on the surface of the clamping plate 404 have the effect of increasing friction force between the needle and the clamping plate 404, the limiting rod 410 has the effect of limiting the elastic direction of the first spring 403 and further limiting the moving position of the clamping plate 404, then remove first holder 1 and second holder 2, make grip block 404 drive the needle prick into patient wound's skin department, drag out the needle from the other end of skin, thereby reached the effect of supplementary needle suture wound, wherein rubber pad 408 has played the effect of further fixed needle, one side that two rubber pads 408 are close to each other is convex, one side fixedly connected with slipmat 409 that grip block 404 kept away from first spring 403, the size of slipmat 409 and grip block 404's size looks adaptation, first spring 403's inside sliding connection has gag lever post 410, the one end and the slide 402 fixed connection of gag lever post 410 keep away from slide 402's one end and grip block 404 sliding connection.
The whole suture needle clamping device 4 achieves the effects that by arranging the suture needle clamping device 4, when a wound of a patient needs to be sutured, the disinfected two sliding plates 402 are firstly slid into the circular arc grooves 401 of the first clamping piece 1 and the second clamping piece 2 respectively, at the moment, the screw 406 is rotated, the screw 406 can fix the two sliding plates 402 on the surfaces of the first clamping piece 1 and the second clamping piece 2 respectively by means of threads, then the two clamping driving rods 3 are pulled, at the moment, the two clamping driving rods 3 respectively drive the first clamping piece 1 and the second clamping piece 2 to rotate, then the first clamping piece 1 and the second clamping piece 2 move to the position of the needle, then the circular arc surfaces of the needle are clamped by the first clamping piece 1 and the second clamping piece 2, one end of the needle with the suture thread is contacted with the surfaces of the two baffle plates 407, at the moment, the two clamping plates 404 are respectively clamped by the elastic force of the first spring 403, at the moment, one side of the two clamping plates 404 close to each other is contacted with the surfaces of the needle, then the two clamping plates 409 are contacted with the surfaces of the needle, the two clamping plates are pulled by the elastic force of the first spring 403, the two clamping plates 404 are prevented from moving from the surface of the first clamping piece 1 and the second clamping piece 2, the skin is prevented from moving from the second clamping piece 2, the skin is prevented from moving the first clamping piece 2, the effect is prevented from being reached, the skin is prevented from being more sliding the surface of the first clamping plate 1 and the second clamping plate 2 is prevented from moving the surface is prevented from the surface of the needle clamping plate 2, and the needle clamping plate is prevented from the surface is prevented from being contacted with the surface of the needle plate, and the needle clamping plate, thereby reached the effect that supplementary needle sewed up the wound, wherein rubber pad 408 played the effect of further fixed needle, solved traditional needle threading clip and had limited to the clamping force of needle, when the supplementary wound of sewing up is carried out to the centre gripping needle, the needle took place to slide easily with the needle threading clip to reduce the work efficiency problem of sewing up patient's wound.
As shown in fig. 5 and 6, the surface of the baffle 407 is provided with the clipping device 5, the clipping device 5 comprises a fixed plate 51, the surface of the fixed plate 51 is fixedly connected with the baffle 407, the surface of the fixed plate 51 is slidably connected with a moving plate 52, one end of the moving plate 52, which is far away from the fixed plate 51, is fixedly connected with a connecting plate 53, one side of the connecting plate 53, which is close to the moving plate 52, is uniformly fixedly connected with a second spring 54, one end of the second spring 54, which is far away from the connecting plate 53, is fixedly connected with the fixed plate 51, one side of the moving plate 52, which is far away from the moving plate 52, is fixedly connected with a connecting cloth 56, one end of the connecting cloth 56, which is far away from the connecting plate 53, is fixedly connected with a hook 57, two blades 55 are fixedly connected with a suture thread of the needle at this moment, the effect of cutting the superfluous suture thread which is finished is cut is achieved, after the cutting is finished, the hook 57 is pulled, the hook 57 is hung on a buckle, the connecting cloth 56 is fixed at the position of the connecting plate 53, the second spring 54 is fixedly connected with the connecting plate 53, one end of the connecting plate 53 is driven by the pulling force, the moving plate 52, the moving plate 55, the one end of the connecting plate 55 is driven by the connecting plate 55, the one end of the connecting plate 55 is far away from the connecting plate 56, the connecting plate 56 is fixedly connected with the connecting plate 56, one end of the connecting plate, the connecting plate 56 is far from the connecting plate 58, one end is far from the connecting plate 53, and the connecting plate is connected with the connecting plate 53 by the connecting groove, and the connecting groove is conveniently by the connecting groove, and the connecting device is connected by the connecting groove, and the connecting device is further, and the connecting 5.
The effect that its whole cutting device 5 reached is, through setting up cutting device 5, after sewing up the wound, when needing to decide the seam of needle, slide block 59 aims at movable plate 52 on the blade 55 after disinfecting earlier, then slide block 59 along movable plate 52's spout 58, slide block 59 and spout 58 have played the effect of convenient installation blade 55 and dismantlement blade 55, then take couple 57 out from the buckle of baffle 407, this moment second spring 54 can make connecting plate 53 drive movable plate 52 for a pulling force, movable plate 52 drives blade 55 and remove, the pointed end of two blades 55 can contact the seam surface of needle, two blades 55 can decide the seam of needle this moment, the effect of deciding the unnecessary seam of finishing the seam has been reached, after the cutting, pulling couple 57, hang couple 57 on the buckle, connecting cloth 56 can fix the position of connecting plate 53 this moment, the position of movable plate 52 is fixed, the position of blade 55 has also reached fixedly, thereby the position of connecting plate 53 has been reached and has been fixed, and then can conveniently cut down the seam with the seam surface of needle, the efficiency of sewing can be reduced after the traditional sewing up of needle has been reached, and the seam of sewing can be accomplished, the convenient cutting of the seam of sewing of needle has been finished, the seam of sewing of needle has been finished.
As shown in fig. 7 and 8, the surface of the first clamping member 1 is provided with a limiting device 6, the limiting device 6 comprises a first clamping plate 61, the surface of the first clamping plate 61 is fixedly connected with the first clamping member 1, two elastic cloths 62 are uniformly and fixedly connected with the surface of the first clamping plate 61, one end of each elastic cloth 62, which is far away from the first clamping plate 61, is slidably connected with a second clamping plate 63, the effect of fixing the positions of the first clamping member 1 and the second clamping member 2 is achieved, then a bolt 66 is clamped into a clamping hole of the handle 65 again, the effect of fixing the position of the handle 65 and then the rotating shaft 64 is achieved, the surface of the second clamping plate 63 is fixedly connected with the second clamping member 2, one end of each elastic cloth 62, which is far away from the second clamping plate 63, is fixedly connected with a rotating shaft 64, two ends of the rotating shaft 64 are rotatably connected with the second clamping plate 63, one end of each rotating shaft 64 is fixedly connected with a handle 65, the surface of each handle 65 is uniformly provided with an anti-skid bump, the handle 65 is rotated, the handle 65 is driven by the rotating the handle 64, at the moment, the rotating shaft 64 drives the rotating shaft 64, the rotating shaft 64 starts to wind the elastic cloth 62 to move in the direction of the first clamping plate 61 towards the second clamping plate 63, the direction, the bolt 66 is clamped to the position, the bolt 66 is clamped and then, the bolt 66 is clamped into the clamping holes, and the clamping hole is uniformly and the clamping hole is far away from the clamping hole 2, and is fixedly connected with the clamping hole, and is fixedly connected with the handle clamping rod 2, and is fixedly connected with the clamping handle 2, and connected with the handle clamp, and is fixedly connected with the handle, and to the handle.
The whole limiting device 6 has the advantages that through the limiting device 6, after the needle and thread clamp is used, the plug pin 66 is pulled firstly, the plug pin 66 is pulled out of the clamping hole of the handle 65, then the handle 65 is rotated, the handle 65 drives the rotating shaft 64 to rotate, the rotating shaft 64 starts to wind the elastic cloth 62, the length of the elastic cloth 62 is reduced, the elastic cloth 62 pulls the first clamping plate 61 to move towards the direction close to the second clamping plate 63, the first clamping plate 61 and the second clamping plate 63 can fix the two holding driving rods 3 in the middle, the effect of fixing the positions of the first clamping piece 1 and the second clamping piece 2 is achieved, then the plug pin 66 is clamped into the clamping hole of the handle 65 again, the position of the handle 65 is fixed, and then the position of the rotating shaft 64 is fixed, so that the clamp can be kept to be stably closed in the operation process, and the clamping is not required to be manually held for a long time. The clamping force of the traditional needle threading clamp on the needle is limited by matching with the suture needle clamping device 4, and the problems that the needle easily slides with the needle threading clamp and the holding force needs to be applied for a long time when the needle is clamped to assist in suturing wounds are further solved.
In embodiment 2, on the basis of embodiment 1, the surface of the first clamping member 1 is provided with a limiting device 6, the limiting device 6 comprises a first clamping plate 61, the surface of the first clamping plate 61 is fixedly connected with the first clamping member 1, the first clamping plate 61 and the second clamping plate 63 can fix two holding driving rods 3 in the middle, the effect of fixing the positions of the first clamping member 1 and the second clamping member 2 is achieved, then a bolt 66 is clamped into a clamping hole of the handle 65 again, the position of the handle 65 is fixed, the effect of fixing the position of the rotating shaft 64 is achieved, two elastic cloths 62 are uniformly and fixedly connected to the surface of the first clamping plate 61, one end of the elastic cloth 62, far away from the first clamping plate 61, is slidably connected with a second clamping plate 63, the effect of fixing the positions of the first clamping member 1 and the second clamping member 2 is achieved, then the bolt 66 is clamped into the clamping hole of the handle 65 again, the inner wall of the clamping hole is slidably connected with the bolt 66, one side of the bolt 66 far away from the handle 65 is clamped with the second clamping piece 2, after the needle and thread clamp is used, the bolt 66 is pulled firstly to enable the bolt 66 to be pulled out of a clamping hole of the handle 65, then the handle 65 is rotated, the handle 65 drives the rotating shaft 64 to rotate, the rotating shaft 64 starts to wind the elastic cloth 62, the length of the elastic cloth 62 is reduced along with the rotating shaft, the effect of fixing the handle 65 and then the rotating shaft 64 is achieved, the surface of the second clamping piece 63 is fixedly connected with the second clamping piece 2, one end of the elastic cloth 62 far away from the second clamping piece 63 is fixedly connected with the rotating shaft 64, two ends of the rotating shaft 64 are rotatably connected with the second clamping piece 63, one end of the rotating shaft 64 is fixedly connected with the handle 65, anti-slip protrusions are uniformly arranged on the surface of the handle 65, the handle 65 drives the rotating shaft 64 to rotate, the rotating shaft 64 starts to wind the elastic cloth 62 at the moment, the elastic cloth 62 can pull the first clamping plate 61 to move towards the direction close to the second clamping plate 63, clamping holes are uniformly formed in one side, far away from the rotating shaft 64, of the handle 65, the plug pins 66 are connected with the inner walls of the clamping holes in a sliding mode, one side, far away from the handle 65, of the plug pins 66 are clamped with the second clamping piece 2, after the needle and thread clamp is used, the plug pins 66 are pulled first to enable the plug pins 66 to be pulled out of the clamping holes of the handle 65, then the handle 65 is rotated, at the moment, the handle 65 drives the rotating shaft 64 to rotate, the rotating shaft 64 starts to wind the elastic cloth 62, the length of the elastic cloth 62 is reduced, the elastic cloth 62 can pull the first clamping plate 61 to move towards the direction close to the second clamping plate 63, the first clamping plate 61 and the second clamping plate 63 can fix the two holding driving rods 3 in the middle, the positions of the first clamping piece 1 and the second clamping piece 2 are fixed, the plug pins 66 are clamped into the clamping holes of the handle 65 again, the positions of the handle 65 are fixed, and the positions of the rotating shaft 64 are fixed.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.