Fatigue test equipment and method for implant and abutment

Abstract

The invention discloses a fatigue testing device and method for an implant and an abutment, and belongs to the field of dental implant testing. Fatigue test equipment for an implant and an abutment comprises a test box, piston boxes are fixedly connected to the two sides of the top of the test box, an arc-shaped plate is fixedly connected between the piston boxes on the two sides, the fatigue test equipment further comprises a detection seat, the detection seat is installed on the top of the arc-shaped plate, and a positioning groove is formed in the detection seat; according to the invention, the swing arm rod drives the detection seat to swing back and forth, and the impact plate, the piston plate, the first spring and the second spring are arranged to generate various horizontal and vertical acting forces on the combination of the implant and the abutment, so that various different chewing actions and force changes are effectively simulated, the test is closer to the actual situation, and the test efficiency is improved. Therefore, the fatigue performance of the combination of the implant and the abutment in a long-time use period can be evaluated, and the representativeness and the accuracy of a fatigue test result are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dental implant testing, and in particular to a fatigue testing device and method for an implant and a base. Background Art

[0002] Implants are usually made of titanium or titanium alloys and are implanted in the mandible or maxilla to provide stable support for dentures or other restorative devices, while the abutment is the key component connecting the implant to the final restoration. With the development of modern dental technology, implants and abutments, as important components of restoring missing teeth, are receiving increasing attention for their quality and reliability. In order to ensure the safety and effectiveness of these medical devices, rigorous fatigue testing is essential.

[0003] Currently, existing fatigue testing equipment is unable to apply alternating loads to simulate actual usage conditions, and also fails to fully consider the complex environmental factors in the oral cavity, such as the impact of saliva components on materials, resulting in insufficient representativeness and accuracy of fatigue test results. Therefore, a fatigue testing device and method for implants and abutments are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that alternating loads cannot be applied to simulate actual usage conditions, and the complex environmental factors in the oral cavity are not fully considered, resulting in insufficient representativeness and accuracy of fatigue test results. A fatigue testing device and method for implants and abutments are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fatigue testing device for implants and abutments comprises a test box, wherein piston boxes are fixedly connected to both sides of the top of the test box, and an arc plate is fixedly connected between the piston boxes on both sides. The device also comprises: a detection seat, wherein the detection seat is installed on the top of the arc plate, and a positioning groove is provided in the detection seat, wherein a mounting plate is fixedly connected between the piston boxes on both sides, and a testing portion for driving the detection seat to slide back and forth along the top of the arc plate is provided on the mounting plate; a liquid guide component, wherein the liquid guide component is arranged in the piston box, and the liquid guide component is used to drip oral environment simulation liquid onto the implant and the abutment fixed in the positioning groove; and a filtrate component, wherein the filtrate component is installed on the test box, and the filtrate component is used to circulate, filter and evenly mix the oral environment simulation liquid in the test box.

[0007] In order to facilitate the simulation of dynamic detection environment and improve the test effect, preferably, the test part includes a swing arm rod, which is rotatably connected to the side wall of the mounting plate, and the bottom of the swing arm rod is fixedly connected to a spring telescopic rod, and the bottom of the telescopic end of the spring telescopic rod is fixedly connected to a positioning box, and both sides of the positioning box are fixedly connected to the positioning plates, and the positioning plates are slidably inserted on both sides of the detection seat, and a driving part that drives the swing arm rod to swing back and forth is provided on the mounting plate.

[0008] Furthermore, the driving part includes a turntable, which is rotatably connected to the side wall of the mounting plate, a positioning pin is fixedly connected to the turntable, a driving plate is fixedly connected to the swing arm rod, the empty slot of the driving plate is slidably sleeved on the positioning pin, a test motor is fixedly connected to the side wall of the mounting plate, and the output shaft of the test motor is fixedly connected to the end of the rotating shaft of the turntable.

[0009] In order to improve the accuracy of the test results, preferably, the liquid guiding assembly includes a piston plate, which is slidably connected in the piston box, and a first spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston box, and a push rod is fixedly connected to the other side wall of the piston plate, and the end of the push rod passes through the side of the piston box facing the center of the arc plate and is fixedly connected to the push plate, and a first conduit is fixed and connected to the side wall of the piston box, the other end of the first conduit is connected to the inner cavity of the positioning box, and a one-way valve is provided in the first conduit, and a plurality of groups of drip holes are provided at equal intervals at the bottom of the positioning box, and the output ends of the drip holes are inclined toward the central axis of the piston box, and a plurality of groups of drainage grooves are provided at equal intervals at the bottom of the inner cavity of the positioning groove, and the drainage grooves are connected to the inner cavity of the test box.

[0010] Furthermore, a water pumping pipe is fixedly connected to the bottom of the arc plate, the top of the water pumping pipe is connected to the inner cavity of the piston box, the water pumping pipe and the first conduit are located on the same side of the inner cavity of the piston box, and a one-way valve is provided in the water pumping pipe.

[0011] Preferably, a limiting slot is provided in the arc-shaped plate, a limiting slide is slidably connected in the limiting slot, the top of the limiting slide is fixedly connected to the bottom of the detection seat, and the detection seat slides in contact with the top of the arc-shaped plate.

[0012] In order to improve the simulation effect of the test action, preferably, an impact groove is opened in the detection seat, a positioning tube is fixedly connected in the impact groove, and an impact plate is slidably connected to the positioning tube located in the impact groove, a second spring is fixedly connected between the bottom of the impact plate and the impact groove, the bottom end of the positioning tube passes through the limiting slide groove and extends to the bottom of the arc plate, the bottom end of the positioning tube is fixed and connected to an air guide seat, both sides of the air guide seat are fixed and connected to a second tube, the other end of the second tube is respectively connected to the inner cavity of the piston box on its corresponding side, and the top end of the positioning tube is connected to the inner cavity of the impact groove above the impact plate.

[0013] Furthermore, an air guide box is fixedly connected to the side walls of the piston box on both sides, and the top of the piston box is fixed and connected to a third conduit, the other end of the third conduit is connected to the inner cavity of the air guide box, and an air pressure groove is provided in the connecting seat of the spring telescopic rod and the swing arm rod, and the air pressure groove is connected to the inner cavity of the spring telescopic rod. The air guide box and the air pressure groove are connected through a fourth conduit, the second conduit and the third conduit are located on the same side of the inner cavity of the piston box, and a pressure valve is provided in the third conduit.

[0014] In order to improve the uniformity of the dripping of the simulated liquid in the oral environment, preferably, the filtrate assembly includes a filtrate box, which is fixed to the bottom of the side wall of the test box, and a linkage shaft is rotatably connected to the filtrate box, and a guide blade is fixedly connected to the linkage shaft. A filtrate plate is fixedly connected to the filtrate box, and the linkage shaft passes through the center of the filtrate plate. A liquid outlet trough is provided on the side of the filtrate box facing the inner cavity of the test box, and a liquid inlet pipe is fixed and connected to the other side of the filtrate box, and the liquid inlet pipe extends into the test box. A transmission shaft is rotatably connected to the side wall of the mounting plate, and the linkage shaft and the transmission shaft are connected by a pulley set, and the other end of the transmission shaft is in contact with the turntable.

[0015] A fatigue testing method for an implant and an abutment comprises the following steps:

[0016] Step 1: Assemble the implant and abutment and fix them in the test seat;

[0017] Step 2: Push the test seat to swing back and forth along the top of the curved plate, generating multi-directional vibrations on the implant and abutment in the test seat;

[0018] Step 3: During the reciprocating swing, continuously drip oral environment simulation liquid onto the implant and abutment;

[0019] Step 4: During the test, continuously filter and mix the oral environment simulation fluid.

[0020] Compared with the prior art, the present invention provides an implant and abutment fatigue testing device and method, which has the following beneficial effects:

[0021] 1. The fatigue testing equipment for implants and abutments drives the test seat to swing back and forth through a swing arm, and cooperates with the settings of the impact plate, piston plate, first spring and second spring to generate various horizontal and vertical forces on the combination of implants and abutments, effectively simulating various different chewing actions and force changes, making the test closer to the actual situation, so as to evaluate the fatigue performance of the implant and abutment combination over a long period of use, and effectively improving the representativeness and accuracy of the fatigue test results.

[0022] 2. The fatigue testing equipment for implants and abutments can continuously extract oral environment simulation fluid from the test box and drip it onto the implants and abutments through the reciprocating sliding of the piston plate in the piston box and the setting of the first spring. This simulates the real oral environment and tests whether the composite material will react with the components in saliva and cause corrosion, thereby understanding the material's corrosion resistance and comprehensively evaluating the quality and reliability of the implants and abutments.

[0023] 3. When the turntable of the fatigue testing equipment for implants and abutments rotates, the friction force and the transmission effect of the pulley group will drive the guide vanes in the filtrate box to rotate, so that the simulated liquid in the test box enters the filtrate box along the liquid inlet pipe, passes through the filtrate plate, and then returns to the test box through the liquid outlet trough, thereby filtering the simulated liquid and ensuring the neatness of the simulated liquid. It also drives the simulated liquid in the test box to flow, so that the various components in the simulated liquid are fully mixed, thereby ensuring the use effect of the simulated liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure of the fatigue testing device for implants and abutments proposed by the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The overall structure of the fatigue testing device for implants and abutments proposed by the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of a partially enlarged structure of a curved plate of a fatigue testing device for implants and abutments proposed by the present invention;

[0027] Figure 4 A schematic diagram of the partial cross-sectional structure of a fatigue testing device for an implant and abutment proposed by the present invention. Figure 1 ;

[0028] Figure 5 The present invention provides a fatigue testing device for an implant and abutment. Figure 4 Schematic diagram of the enlarged structure of area A in the middle;

[0029] Figure 6 The present invention provides a fatigue testing device for an implant and abutment. Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0030] Figure 7 A partial cross-sectional diagram of a fatigue testing device for implants and abutments proposed by the present invention Figure 2 ;

[0031] Figure 8 The present invention provides a fatigue testing device for an implant and abutment. Figure 7 Schematic diagram of the enlarged structure of the middle C area.

[0032] In the figure: 1, test box; 2, piston box; 21, mounting plate; 22, piston plate; 221, push rod; 222, push plate; 23, first spring; 24, first guide tube; 3, curved plate; 31, water pump; 32, limit slide; 33, limit slide; 4, test seat; 41, positioning groove; 411, drainage groove; 42, impact groove; 421, positioning guide tube; 422, impact plate; 423, second spring; 43, air guide seat; 431, second guide Tube; 5. Swing arm rod; 51. Spring telescopic rod; 52. Positioning box; 521. Positioning plate; 522. Drip hole; 53. Turntable; 531. Positioning pin; 54. Drive plate; 55. Test motor; 7. Air guide box; 71. Third conduit; 72. Air pressure tank; 73. Fourth conduit; 8. Filtrate box; 81. Linkage shaft; 82. Guide vane; 83. Filtrate plate; 84. Liquid outlet tank; 85. Liquid inlet pipe; 86. Drive shaft; 861. Pulley assembly. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Example 1:

[0036] Reference Figures 1-8, a fatigue testing device for implants and bases, comprising a test box 1, with piston boxes 2 fixedly connected to both sides of the top of the test box 1, and an arc plate 3 fixedly connected between the piston boxes 2 on both sides, and also comprising: a detection seat 4, the detection seat 4 is mounted on the top of the arc plate 3, a limiting slide groove 32 is provided in the arc plate 3, a limiting slide seat 33 is slidably connected in the limiting slide groove 32, the top of the limiting slide seat 33 is fixedly connected to the bottom of the detection seat 4, and the detection seat 4 slides in contact with the top of the arc plate 3, and a positioning groove 41 is provided in the detection seat 4, wherein a mounting plate 21 is fixedly connected between the piston boxes 2 on both sides, and the mounting plate 21 is provided with a test part for driving the detection seat 4 to slide back and forth along the top of the arc plate 3; a liquid guide component, the liquid guide component is arranged in the piston box 2, and the liquid guide component is used to drip oral environment simulation liquid onto the implant and the base fixed in the positioning groove 41; a filtrate component, the filtrate component is mounted on the test box 1, and the filtrate component is used to circulate, filter and evenly mix the oral environment simulation liquid in the test box 1.

[0037] Reference Figures 1-4 , wherein the testing part includes a swing arm rod 5, which is rotatably connected to the side wall of the mounting plate 21, and a spring telescopic rod 51 is fixedly connected to the bottom of the swing arm rod 5, and a positioning box 52 is fixedly connected to the bottom of the telescopic end of the spring telescopic rod 51, and both sides of the positioning box 52 are fixedly connected to the positioning plates 521, and the positioning plates 521 are slidably inserted into the two sides of the detection seat 4, and a driving part that drives the swing arm rod 5 to swing back and forth is provided on the mounting plate 21; the driving part includes a turntable 53, which is rotatably connected to the side wall of the mounting plate 21, and a positioning pin 531 is fixedly connected to the turntable 53, and a driving plate 54 is fixedly connected to the swing arm rod 5, and the empty slot of the driving plate 54 is slidably sleeved on the positioning pin 531, and a test motor 55 is fixedly connected to the side wall of the mounting plate 21, and the output shaft of the test motor 55 is fixedly connected to the end of the rotating shaft of the turntable 53;

[0038] Through the setting of the above structure, the test motor 55 is turned on to drive the turntable 53 to rotate. At this time, the positioning pin 531 and the drive plate 54 are coordinated to make the swing arm rod 5 swing back and forth. At this time, the spring telescopic rod 51 will carry the detection seat 4 to slide back and forth along the top of the arc plate 3. When the detection seat 4 slides to both ends of the arc plate 3, the positioning plate 521 will collide with the corresponding push plate 222 and feedback to the detection seat 4, causing a lateral impact vibration effect to be generated inside it, thereby applying a lateral load force to the clamped implant and abutment, effectively simulating the force conditions of the implant and abutment caused by chewing and other actions, so as to evaluate the fatigue performance of the implant and abutment combination over a long period of use.

[0039] Reference Figure 3-Figure 7, wherein the liquid guide assembly includes a piston plate 22, the piston plate 22 is slidably connected to the piston box 2, a first spring 23 is fixedly connected between the side wall of the piston plate 22 and the inner wall of the piston box 2, a push rod 221 is fixedly connected to the other side wall of the piston plate 22, the end of the push rod 221 passes through the side of the piston box 2 facing the center of the arc plate 3 and is fixedly connected to the push plate 222; an impact groove 42 is opened in the detection seat 4, a positioning guide tube 421 is fixedly connected to the impact groove 42, and the positioning guide tube 421 located in the impact groove 42 is slidably connected to the positioning guide tube 421. It is connected to an impact plate 422, and a second spring 423 is fixedly connected between the bottom of the impact plate 422 and the impact groove 42. The bottom end of the positioning tube 421 passes through the limiting slide groove 32 and extends to the bottom of the arc plate 3. The bottom end of the positioning tube 421 is fixed and connected to the air guide seat 43. Both sides of the air guide seat 43 are fixed and connected to the second tube 431. The other end of the second tube 431 is respectively connected to the inner cavity of the piston box 2 on its corresponding side, and the top end of the positioning tube 421 is connected to the inner cavity of the impact groove 42 located above the impact plate 422.

[0040] By the arrangement of the above structure, when the positioning plate 521 pushes the push plate 222 and the push rod 221 to slide with the piston plate 22 to the side of the compressed first spring 23, a gas compression effect is generated in the cavity of the piston box 2 close to the side of the second conduit 431, and the compressed gas enters the gas guide seat 43 along the second conduit 431, and then enters the top cavity of the impact groove 42 along the positioning conduit 421, so that the air pressure in the top cavity of the impact groove 42 increases, thereby pushing the impact plate 422 to slide to the side of the compressed second spring 423, so that the second spring 423 is in a compressed and stored state. Subsequently, when the positioning plate 521 slides in the opposite direction following the spring telescopic rod 51, the squeezing effect on the piston plate 22 is released, and under the rebound action of the first spring 23, the piston plate 22 quickly returns to slide. At this time, the cavity originally pressed into the impact groove 42 will also return to its original position and move, thereby The pressure on the impact plate 422 is released. At this time, under the rebound action of the second spring 423, the impact plate 422 will impact the top of the inner cavity of the impact groove 42, thereby generating a vertical vibration effect in the detection seat 4; in addition, in the process of filling gas into the impact groove 42, when the internal air pressure exceeds the set threshold of the pressure valve in the third conduit 71, some of the overpressure gas will enter the air guide box 7 along the third conduit 71, and then enter the spring telescopic rod 51 through the fourth conduit 73, thereby pushing the telescopic end of the spring telescopic rod 51 to move downward, thereby increasing the pressure on the combination; as described above, various chewing actions and force changes are effectively simulated, making the test closer to the actual situation, so as to evaluate the fatigue performance of the implant and abutment combination during a long period of use, and effectively improving the representativeness and accuracy of the fatigue test results.

[0041] When the positioning plate 521 pushes the push plate 222 to move, the first spring 23 and the second spring 423 need to be compressed and the friction force generated by the sliding connection at each location needs to be overcome. Therefore, the movement speed of the piston plate 22 is slow at this time. When the positioning plate 521 slides in the direction of separating from the push plate 222, the rebound force of the first spring 23 and the second spring 423 will produce a certain thrust acceleration effect on it, and cooperate with the quick return characteristics generated between the positioning pin 531 and the drive plate 54 (this belongs to the prior art, and the specific principle is as follows: when the positioning pin 531 rotates at a constant speed with the turntable 53, the average angular velocity of the drive plate 54 in the reverse return stroke is greater than the average angular velocity of its forward stroke), which accelerates the reverse return speed, so that when the positioning plate 521 is separated from the push plate 222, the second spring 423 has not yet had time to fully rebound, thereby ensuring that the second spring 423 can smoothly drive the impact plate 422 to impact the top of the impact groove 42 to produce a vibration effect.

[0042] Reference Figure 3-Figure 5 , wherein, a first conduit 24 is fixed and connected to the side wall of the piston box 2, the other end of the first conduit 24 is connected to the inner cavity of the positioning box 52, and a one-way valve is provided in the first conduit 24, and a plurality of groups of drip holes 522 are evenly spaced at the bottom of the positioning box 52, and the output ends of the drip holes 522 are inclined toward the central axis of the piston box 2, and a plurality of groups of drainage grooves 411 are evenly spaced at the bottom of the inner cavity of the positioning groove 41, and the drainage grooves 411 are connected to the inner cavity of the test box 1; a water pumping pipe 31 is fixedly connected to the bottom of the arc plate 3, and the top end of the water pumping pipe 31 is connected to the inner cavity of the piston box 2, the water pumping pipe 31 and the first conduit 24 are located on the same side of the inner cavity of the piston box 2, and a one-way valve is provided in the water pumping pipe 31.

[0043] It should be noted that the one-way valve in the first conduit 24 can only allow the liquid in the piston box 2 to enter the positioning box 52 ; the one-way valve in the water extraction pipe 31 can only allow the liquid in the test box 1 to enter the piston box 2 .

[0044] Through the arrangement of the above structure, when the positioning plate 521 pushes the piston plate 22 to move, a negative pressure suction effect is generated in the cavity of the piston box 2 near the side of the water pumping pipe 31, thereby opening the one-way valve in the water pumping pipe 31, so that the oral environment simulation liquid in the test box 1 is drawn into the piston box 2, and then under the rebound action of the first spring 23, when the piston plate 22 resets and slides, a pressurized thrust effect is generated in the cavity of the piston box 2 near the side of the water pumping pipe 31, thereby pushing open the one-way valve in the first conduit 24, so that the liquid drawn into the piston box 2 is pressed into the positioning box 52 along the first conduit 24, and dripped onto the assembly through multiple groups of drip holes 522, thereby simulating the real oral environment and testing whether the assembly material will react with the components in the saliva and corrode, so as to understand the corrosion resistance of the material and then comprehensively evaluate the quality and reliability of the implant and the abutment.

[0045] Reference Figures 1-4 , wherein, the side walls of the piston boxes 2 on both sides are fixedly connected with an air guide box 7, the top of the piston box 2 is fixed and connected with a third conduit 71, the other end of the third conduit 71 is connected with the inner cavity of the air guide box 7, and an air pressure groove 72 is opened in the connecting seat of the spring telescopic rod 51 and the swing arm rod 5, and the air pressure groove 72 is connected with the inner cavity of the spring telescopic rod 51, and the air guide box 7 and the air pressure groove 72 are connected through a fourth conduit 73. The second conduit 431 and the third conduit 71 are located on the same side of the inner cavity of the piston box 2, and a pressure valve is provided in the third conduit 71.

[0046] Through the arrangement of the above structure, during the process of filling gas into the impact groove 42, when the internal air pressure exceeds the threshold set by the pressure valve in the third conduit 71, part of the overpressure gas will enter the air guide box 7 along the third conduit 71, and then enter the spring telescopic rod 51 through the fourth conduit 73, thereby pushing the telescopic end of the spring telescopic rod 51 to move downward, increasing the vertical pressure effect on the combination, effectively simulating the force change of the chewing action, so as to evaluate the fatigue performance of the implant and abutment combination over a long period of use.

[0047] Reference Figure 7 、 Figure 8 , wherein the filtrate assembly includes a filtrate box 8, which is fixed to the bottom of the side wall of the test box 1, and a linkage shaft 81 is rotatably connected to the filtrate box 8, and a guide blade 82 is fixedly connected to the linkage shaft 81. A filtrate plate 83 is fixedly connected to the filtrate box 8, and the linkage shaft 81 passes through the center of the filtrate plate 83. A liquid outlet trough 84 is provided on the side of the filtrate box 8 facing the inner cavity of the test box 1, and a liquid inlet pipe 85 is fixed and connected to the other side of the filtrate box 8. The liquid inlet pipe 85 extends into the test box 1, and a transmission shaft 86 is rotatably connected to the side wall of the mounting plate 21. The linkage shaft 81 and the transmission shaft 86 are connected for transmission via a pulley set 861, and the other end of the transmission shaft 86 is in contact with the turntable 53.

[0048] With the above-mentioned structure, when the turntable 53 rotates, the friction force drives the transmission shaft 86 to rotate. Then, in conjunction with the transmission action of the pulley set 861, the linkage shaft 81 drives the guide vane 82 to rotate in the filtrate box 8, thereby generating a suction effect on the side of the filtrate box 8 near the liquid inlet pipe 85, so that the simulated liquid in the test box 1 enters the filtrate box 8 along the liquid inlet pipe 85, passes through the filtrate plate 83, and then returns to the test box 1 through the liquid outlet trough 84. In this way, the simulated liquid is firstly filtered to ensure the neatness of the simulated liquid, and secondly, the simulated liquid in the test box 1 is driven to flow, so that the various components in the simulated liquid are fully mixed, thereby ensuring the use effect of the simulated liquid.

[0049] Example 2:

[0050] Reference Figures 1-8 , which is basically the same as the first embodiment, and based on the first embodiment, a fatigue testing method for an implant and an abutment is proposed, comprising the following steps:

[0051] Step 1: Assemble the implant and the abutment and fix them in the test seat 4;

[0052] Step 2: Push the detection seat 4 to swing back and forth along the top of the arc plate 3, and generate multi-directional vibration effects on the implant and abutment in the detection seat 4;

[0053] Step 3: During the reciprocating swing, continuously drip oral environment simulation liquid onto the implant and abutment;

[0054] Step 4: During the test, continuously filter and mix the oral environment simulation fluid.

[0055] Reference Figures 1-8 In the present invention, when in use, first push the telescopic end of the spring telescopic rod 51 upward to make it in a compressed state, then place the assembly of the implant and the abutment into the positioning groove 41, and then the spring telescopic rod 51 resets and rebounds, so that the assembly is clamped between the positioning groove 41 and the positioning box 52, and at the same time, the positioning plate 521 will also be inserted into both sides of the detection seat 4, so as to complete the installation and fixing work before testing.

[0056] Next, the test motor 55 is turned on to drive the turntable 53 to rotate. At this time, the positioning pin 531 and the drive plate 54 are configured to make the swing arm 5 swing back and forth. At this time, the spring telescopic rod 51 will carry the detection seat 4 to slide back and forth along the top of the arc plate 3. When the detection seat 4 slides to both ends of the arc plate 3, the positioning plates 521 will collide with the corresponding push plates 222 and feedback to the detection seat 4, causing a lateral impact vibration to be generated inside the detection seat 4. Subsequently, the positioning plate 521 will push the push plate 222 and the push rod 221 to carry the piston The plate 22 slides toward the side of the compressed first spring 23, thereby generating a gas compression effect in the cavity of the piston box 2 near the side of the second conduit 431, and the compressed gas will enter the gas guide seat 43 along the second conduit 431, and then enter the top cavity of the impact groove 42 along the positioning conduit 421, so that the air pressure in the top cavity of the impact groove 42 increases, thereby pushing the impact plate 422 to slide toward the side of the compressed second spring 423, so that the second spring 423 is in a compressed and force-storing state. Subsequently, when the positioning plate 521 follows the spring telescopic rod 51 in the reverse direction, the gas will be compressed. During the sliding, the squeezing effect on the piston plate 22 is released, and under the rebound action of the first spring 23, the piston plate 22 is quickly reset and slid. At this time, the cavity originally pressed into the impact groove 42 is also reset and moved, thereby releasing the pressure on the impact plate 422. At this time, under the rebound action of the second spring 423, the impact plate 422 impacts the top of the inner cavity of the impact groove 42, thereby generating a vertical vibration effect in the detection seat 4. In addition, in the process of filling the impact groove 42 with gas, when the internal air pressure exceeds the set threshold of the pressure valve in the third conduit 71, some of the overpressure gas will enter the air guide box 7 along the third conduit 71, and then enter the spring telescopic rod 51 through the fourth conduit 73, thereby pushing the telescopic end of the spring telescopic rod 51 downward, thereby increasing the pressure on the assembly. As described above, various chewing actions and force changes are effectively simulated, making the test closer to the actual situation, so as to evaluate the fatigue performance of the implant and abutment combination over a long period of use, and effectively improving the representativeness and accuracy of the fatigue test results.

[0057] When the positioning plate 521 pushes the piston plate 22 to move, a negative pressure suction effect is generated in the cavity of the piston box 2 near the side of the water pumping pipe 31, thereby opening the one-way valve in the water pumping pipe 31, so that the oral environment simulation liquid in the test box 1 is sucked into the piston box 2. Then, under the rebound effect of the first spring 23, when the piston plate 22 is reset and slides, a pressurized thrust effect is generated in the cavity of the piston box 2 near the side of the water pumping pipe 31, thereby pushing open the one-way valve in the first conduit 24, so that the liquid sucked into the piston box 2 flows along the first conduit 24. A catheter 24 is pressed into the positioning box 52 and dripped onto the assembly through multiple sets of drip holes 522, thereby simulating the real oral environment and testing whether the assembly material will react with the components in saliva and corrode, thereby understanding the corrosion resistance of the material and comprehensively evaluating the quality and reliability of the implant and the base. The simulated liquid dripped onto the surface of the assembly will eventually drip along the drainage groove 411 to the top of the curved plate 3 and then flow back into the test box 1, thereby realizing the recycling of the simulated liquid and improving the energy saving effect. In addition, the simulated liquid dripping onto the top surface of the curved plate 3 can play a certain lubricating role, thereby reducing the friction generated between the test seat 4 and the curved plate 3, while absorbing the heat generated by friction, and using the heat generated by multiple reciprocating friction to change the temperature of the simulated liquid, thereby better simulating the complex environment in the oral cavity and improving the accuracy of the implant and base performance test results.

[0058] In addition, when the turntable 53 rotates, the friction force drives the transmission shaft 86 to rotate, and then cooperates with the transmission action of the pulley group 861 to make the linkage shaft 81 drive the guide vane 82 to rotate in the filtrate box 8, thereby generating a suction effect on the side of the filtrate box 8 close to the liquid inlet pipe 85, so that the simulated liquid in the test box 1 enters the filtrate box 8 along the liquid inlet pipe 85, and after passing through the filter plate 83, returns to the test box 1 through the liquid outlet 84. In this way, the simulated liquid is firstly filtered to ensure the neatness of the simulated liquid, and secondly, the simulated liquid in the test box 1 is driven to flow, so that the various components in the simulated liquid are fully mixed, thereby ensuring the use effect of the simulated liquid.

[0059] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fatigue testing device for implants and abutments, comprising a test box (1), characterized in that: The test box (1) is fixedly connected to piston boxes (2) on both sides of the top, and an arc-shaped plate (3) is fixedly connected between the piston boxes (2) on both sides. It also includes: A detection seat (4), wherein the detection seat (4) is mounted on the top of the arc-shaped plate (3), and a positioning groove (41) is provided in the detection seat (4). Wherein, a mounting plate (21) is fixedly connected between the piston boxes (2) on both sides, and a test portion for driving the detection seat (4) to slide back and forth along the top of the arc plate (3) is provided on the mounting plate (21); A liquid guide component, the liquid guide component being arranged in the piston box (2) and being used for dripping oral environment simulation liquid onto the implant and the base fixed in the positioning groove (41); A filtrate component is installed on the test box (1), and is used to circulate and filter the oral environment simulation liquid in the test box (1) and evenly mix it.

2. The fatigue testing device for implants and abutments according to claim 1, characterized in that: The test section comprises a swing arm (5), the swing arm (5) being rotatably connected to the side wall of the mounting plate (21), the bottom of the swing arm (5) being fixedly connected to a spring telescopic rod (51), the bottom of the telescopic end of the spring telescopic rod (51) being fixedly connected to a positioning box (52), both sides of the positioning box (52) being fixedly connected to positioning plates (521), the positioning plates (521) being slidably plugged into both sides of the detection seat (4), and a driving section for driving the swing arm (5) to swing back and forth is provided on the mounting plate (21).

3. The fatigue testing device for implants and abutments according to claim 2, characterized in that: The driving portion comprises a turntable (53), the turntable (53) being rotatably connected to a side wall of a mounting plate (21), a positioning pin (531) being fixedly connected to the turntable (53), a driving plate (54) being fixedly connected to the swing arm (5), a slot of the driving plate (54) being slidably sleeved on the positioning pin (531), a test motor (55) being fixedly connected to the side wall of the mounting plate (21), and an output shaft of the test motor (55) being fixedly connected to an end of a rotating shaft of the turntable (53).

4. The fatigue testing device for implants and abutments according to claim 2, characterized in that: The liquid guide assembly includes a piston plate (22), the piston plate (22) is slidably connected in the piston box (2), a first spring (23) is fixedly connected between the side wall of the piston plate (22) and the inner wall of the piston box (2), a push rod (221) is fixedly connected to the other side wall of the piston plate (22), the end of the push rod (221) passes through the side of the piston box (2) facing the center of the arc plate (3) and is fixedly connected to the push plate (222), and a first spring (23) is fixedly connected to the side wall of the piston box (2) and is connected to the first spring (23). A conduit (24), the other end of the first conduit (24) is connected to the inner cavity of the positioning box (52), and a one-way valve is provided in the first conduit (24), the bottom of the positioning box (52) is provided with multiple groups of drip holes (522) at equal intervals, and the output ends of the drip holes (522) are inclined toward the central axis of the piston box (2), the bottom of the inner cavity of the positioning groove (41) is provided with multiple groups of drainage grooves (411) at equal intervals, and the drainage grooves (411) are connected to the inner cavity of the test box (1).

5. The fatigue testing device for implants and abutments according to claim 4, characterized in that: A water pumping pipe (31) is fixedly connected to the bottom of the arc-shaped plate (3), the top end of the water pumping pipe (31) is connected to the inner cavity of the piston box (2), the water pumping pipe (31) and the first conduit (24) are located on the same side of the inner cavity of the piston box (2), and a one-way valve is provided in the water pumping pipe (31).

6. The fatigue testing device for implants and abutments according to claim 2, characterized in that: A limiting slide groove (32) is provided in the arc-shaped plate (3), a limiting slide seat (33) is slidably connected in the limiting slide groove (32), the top of the limiting slide seat (33) is fixedly connected to the bottom of the detection seat (4), and the detection seat (4) and the top of the arc-shaped plate (3) are fitted and slidable.

7. The fatigue testing device for implants and abutments according to claim 6, characterized in that: The detection seat (4) is provided with a striking groove (42), a positioning conduit (421) is fixedly connected to the striking groove (42), and a striking plate (422) is slidably connected to the positioning conduit (421) located in the striking groove (42), a second spring (423) is fixedly connected between the bottom of the striking plate (422) and the striking groove (42), the bottom end of the positioning conduit (421) passes through the limiting sliding groove (32) and extends to the bottom of the arc plate (3), the bottom end of the positioning conduit (421) is fixed and connected to the air guide seat (43), both sides of the air guide seat (43) are fixed and connected to the second conduit (431), the other end of the second conduit (431) is respectively connected to the inner cavity of the piston box (2) on its corresponding side, and the top end of the positioning conduit (421) is connected to the inner cavity of the striking groove (42) located above the striking plate (422).

8. The fatigue testing device for implants and abutments according to claim 7, characterized in that: An air guide box (7) is fixedly connected to the side walls of the piston box (2) on both sides. The top of the piston box (2) is fixed and connected to a third conduit (71). The other end of the third conduit (71) is connected to the inner cavity of the air guide box (7). An air pressure groove (72) is provided in the connection seat between the spring telescopic rod (51) and the swing arm rod (5). The air pressure groove (72) is connected to the inner cavity of the spring telescopic rod (51). The air guide box (7) and the air pressure groove (72) are connected through a fourth conduit (73). The second conduit (431) and the third conduit (71) are located on the same side of the inner cavity of the piston box (2), and a pressure valve is provided in the third conduit (71).

9. The fatigue testing device for implants and abutments according to claim 2, characterized in that: The filtrate assembly comprises a filtrate box (8), the filtrate box (8) is fixed to the bottom of the side wall of the test box (1), a linkage shaft (81) is rotatably connected in the filtrate box (8), a guide vane (82) is fixedly connected to the linkage shaft (81), a filtrate plate (83) is fixedly connected in the filtrate box (8), the linkage shaft (81) passes through the center of the filtrate plate (83), a liquid outlet groove (84) is provided on the side of the filtrate box (8) facing the inner cavity of the test box (1), a liquid inlet pipe (85) is fixed and communicated with the other side of the filtrate box (8), the liquid inlet pipe (85) passes through and extends into the test box (1), a transmission shaft (86) is rotatably connected to the side wall of the mounting plate (21), the linkage shaft (81) and the transmission shaft (86) are transmission-connected via a pulley set (861), and the other end of the transmission shaft (86) is in contact with the turntable (53).

10. A method for fatigue testing of an implant and an abutment, using an implant and an abutment fatigue testing device according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Assemble the implant and the abutment and fix them in the test seat (4); Step 2: Push the detection seat (4) to swing back and forth along the top of the arc plate (3), and generate multi-directional vibration effects on the implant and the base in the detection seat (4); Step 3: During the reciprocating swing, continuously drip oral environment simulation liquid onto the implant and abutment; Step 4: During the test, continuously filter and mix the oral environment simulation fluid.

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