Accelerated aging test device for implantable medical device

Abstract

The utility model provides an accelerated aging test device for an implantable medical device, which comprises a first component, and the first component comprises a nonmetal bearing table and a nonmetal sample container; a first sunken positioning groove is formed in the preset surface of the bearing table, the first positioning groove comprises a first sub-positioning groove and a second sub-positioning groove which are communicated with each other, and the second sub-positioning groove is located at the groove bottom of the first sub-positioning groove; on a plane parallel to the preset surface, the projection of the second sub-positioning groove is located on the inner side of the projection of the second sub-positioning groove; the sample container is at least partially accommodated in the first sub-positioning groove; the sample container comprises an inner-layer cup body with an opening and an outer-layer cup sleeve wrapping the outer surface of the inner-layer cup body, and a containing cavity is formed between the outer-layer cup sleeve and the inner-layer cup body; a liquid inlet and a liquid outlet which are communicated with the containing cavity are further formed in the outer-layer cup sleeve. When the accelerated aging device is used for carrying out the accelerated aging test on the implantable medical device, the communication and charging processes of the implantable medical device are not interfered by metal, and better test accuracy is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to an accelerated aging test device for implantable medical devices. Background Art

[0002] During the design process of medical devices, an expected test of their service life should be conducted, and accelerated aging test is one of the test methods. Common accelerated aging tests are mostly performed using a water bath or a constant temperature and humidity chamber.

[0003] For medical devices such as implantable deep brain neurostimulators, the accelerated aging test is generally performed by sealing the stimulator connected to the electrodes in a container loaded with PBS buffer (i.e., phosphate buffer), and then placing the container in a water bath or a constant temperature and humidity chamber, while turning on electrical stimulation to simulate the scene of the medical device being implanted in the patient's body. This type of medical device also requires wireless communication and wireless charging during the test to test the performance of the medical device. However, the inner walls of the water bath and the constant temperature and humidity chamber are made of metal, which have certain interference with communication signals and charging signals. Utility Model Content

[0004] The utility model aims to provide an accelerated aging test device for implantable medical devices, aiming to perform accelerated aging tests on implantable medical devices without metal interference and improve the accuracy of test results.

[0005] To achieve the above-mentioned object, the utility model provides an accelerated aging test device for implantable medical devices, comprising a first component, wherein the first component comprises a non-metallic support platform and a non-metallic sample container; wherein:

[0006] A concave first positioning groove is formed on the predetermined surface of the carrier platform; the first positioning groove includes a first sub-positioning groove and a second sub-positioning groove which are connected to each other, and the second sub-positioning groove is located at the groove bottom of the first sub-positioning groove; on a plane parallel to the predetermined surface, the projection of the second sub-positioning groove is located on the inner side of the projection of the first sub-positioning groove;

[0007] The sample container is used to be partially accommodated in the first sub-positioning groove; the sample container includes an inner cup body with an opening and an outer cup sleeve wrapped around the outer surface of the inner cup body, and a receiving cavity is formed between the outer cup sleeve and the inner cup body; a liquid inlet and a liquid outlet connected to the receiving cavity are also formed on the outer cup sleeve.

[0008] Optionally, a second recessed positioning groove and a third positioning groove are further provided on the predetermined surface; the second positioning groove includes a third sub-positioning groove, and the third sub-positioning groove is located on one side of the first sub-positioning groove; the third positioning groove connects the third sub-positioning groove and the second sub-positioning groove.

[0009] Optionally, in a direction perpendicular to the predetermined surface, the liquid inlet of the sample container is closer to the supporting platform than the liquid outlet, and the liquid inlet of the sample container is used to be connected to a pipeline for liquid circulation;

[0010] A recessed fourth positioning groove is also provided on the predetermined surface. The fourth positioning groove is located on one side of the first sub-positioning groove and is communicated with the first sub-positioning groove. The fourth positioning groove is used to accommodate a portion of the structure of the pipeline connected to the liquid inlet of the sample container.

[0011] Optionally, the third sub-positioning groove, the third positioning groove, and the first positioning groove are arranged in sequence along the first direction, and the fourth positioning groove and the first sub-positioning groove are arranged along the first direction; the fourth positioning groove and the third sub-positioning groove are located on the same side of the first positioning groove, and the fourth positioning groove and the third sub-positioning groove are spaced apart in the second direction; the second direction and the first direction are both parallel to the predetermined surface, and the second direction is perpendicular to the first direction.

[0012] Optionally, the third sub-positioning groove, the third positioning groove, and the first positioning groove are arranged in sequence along a first direction, and the first direction is parallel to the predetermined surface; the second positioning groove also includes a fourth sub-positioning groove, the fourth sub-positioning groove extends along the first direction and includes a first groove section and a second groove section connected to each other, the first groove section is located at the bottom of the third sub-positioning groove and is connected to the third sub-positioning groove, and the second groove section is located on the side of the third sub-positioning groove away from the first sub-positioning groove and extends to the edge of the supporting platform.

[0013] Optionally, the fourth sub-positioning groove penetrates the bearing platform along the first direction, and further includes a third groove section, the third groove section is located on a side of the third sub-positioning groove close to the first sub-positioning groove, and the third groove section and the first sub-positioning groove are arranged along a second direction, the second direction is perpendicular to the first direction, and the second direction is also parallel to the predetermined surface;

[0014] The accelerated aging test device includes a plurality of the first components, the plurality of the first components are arranged in sequence along the first direction, and the fourth sub-positioning grooves of the plurality of the first components are connected in sequence, and the liquid outlet of the sample container of one of two adjacent first components is connected to the liquid inlet of the sample container of the other first component through the bridge pipe.

[0015] Optionally, the accelerated aging test device also includes a second component, which includes a circulating liquid supply mechanism, and the circulating liquid supply mechanism includes a liquid storage part, a liquid supply pipeline and a liquid recovery pipeline; the liquid storage part includes a liquid storage cavity for storing liquid, the liquid supply pipeline and the liquid recovery pipeline are both connected to the liquid storage cavity, and the liquid supply pipeline is connected to the liquid inlet of one of the sample containers of the first component, and the liquid recovery pipeline is used to communicate with the liquid outlet of one of the sample containers of the first component.

[0016] Optionally, the second component also includes a monitoring element and a display element, the monitoring element is used to be arranged on the liquid storage part and monitor the target parameters of the liquid in the liquid storage cavity, and the display element is communicatively connected to the monitoring element and is used to receive and display the target parameters; the target parameters include liquid level and temperature.

[0017] Optionally, at least a portion of the groove wall of the second sub-positioning groove is arc-shaped.

[0018] Optionally, the cross section of the outer cup sleeve parallel to the predetermined surface is a first circle; the cross section of the first sub-positioning groove parallel to the predetermined surface is a second circle, and the diameter of the second circle matches the diameter of the first circle.

[0019] Compared with the prior art, the accelerated aging test device for implantable medical devices of the utility model has the following advantages:

[0020] The aforementioned accelerated aging test device for implantable medical devices includes a first component, which includes a non-metallic support platform and a non-metallic sample container; wherein a recessed first positioning groove is formed on the predetermined surface of the support platform, and the first positioning groove includes a first sub-positioning groove and a second sub-positioning groove that are interconnected, and the second sub-positioning groove is located at the bottom of the first sub-positioning groove; on a plane parallel to the predetermined surface, the projection of the second sub-positioning groove is located on the inner side of the projection of the second sub-positioning groove; the sample container is used to be at least partially accommodated in the first sub-positioning groove; the sample container includes an inner cup body with an opening and an outer cup sleeve wrapped around the outer surface of the inner cup body, and a accommodating cavity is formed between the outer cup sleeve and the inner cup body; a liquid inlet and a liquid outlet that are connected to the accommodating cavity are also formed on the outer cup sleeve. In actual use, the wireless charging transmitting coil that matches the implantable medical device to be tested is placed in the second sub-positioning groove, and the inner cup body of the sample container is made to carry PBS buffer. After the implantable medical device to be tested is immersed in the PBS buffer, the opening of the inner cup body is closed in any suitable manner, and then a liquid circulation mechanism is used to circulate liquid with a predetermined temperature to the containing cavity to heat the PBS buffer, so that the implantable medical device can be subjected to an accelerated aging test. During the test, a host computer matching the implantable medical device is used to communicate with the implantable medical device, and the wireless charging transmitting coil is controlled to charge the implantable medical device. Since the implantable medical device is placed in the non-metallic sample container, the communication and charging processes will not be interfered by metal, and the test accuracy is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment, and a first component is shown in the figure;

[0023] Figure 2 It is a schematic diagram of the overall structure of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment, and shows two first components arranged in sequence;

[0024] Figure 3 It is a structural schematic diagram of a support platform of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment;

[0025] Figure 4It is a schematic structural diagram of a sample container of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment;

[0026] Figure 5 is a cross-sectional view of a sample container of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment;

[0027] Figure 6 It is a partial schematic diagram of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment, in which the wireless charging transmitting coil is placed in the second sub-positioning groove and the host is arranged in the third sub-positioning groove;

[0028] Figure 7 It is a partial schematic diagram of an accelerated aging test device for an implantable medical device provided by the utility model according to one embodiment, in which the sample container is placed at the first sub-positioning groove, the host is arranged at the third sub-positioning groove, and the wireless charging transmitting coil is blocked by the sample container;

[0029] Figure 8 It is a partial structural schematic diagram of the second component of the accelerated aging test device for implantable medical devices provided by the utility model according to one embodiment.

[0030] [Description of reference numerals is as follows]:

[0031] 100-first component, 1100-carrying platform, 1110-first positioning groove, 1111-first sub-positioning groove, 1112-second sub-positioning groove, 1120-second positioning groove, 1121-third sub-positioning groove, 1122-fourth sub-positioning groove, 1130-third positioning groove, 1140-fourth positioning groove, 1200-sample container, 1210-inner cup body, 1211-opening, 1220-outer cup sleeve, 1230-first Liquid inlet, 1240-first liquid outlet, 1201-accommodating chamber, 200-second component, 2100-liquid circulation mechanism, 2110-liquid storage part, 2120-liquid supply pipeline, 2130-liquid recovery pipeline, 2140-second liquid inlet, 2150-second liquid outlet, 2200-display element, 300-bridge pipeline, 10-wireless charging transmitting coil, 20-host, 30-first wire, 40-second wire. DETAILED DESCRIPTION

[0032] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be a random change, and the component layout type may also be more complicated.

[0033] In addition, each embodiment of the following description has one or more technical features, but this does not mean that the user of the present invention must implement all the technical features in any embodiment at the same time, or can only implement part or all of the technical features in different embodiments separately. In other words, under the premise of being possible to implement, those skilled in the art can selectively implement part or all of the technical features in any embodiment according to the disclosure of the present invention and according to the design specifications or implementation requirements, or selectively implement a combination of part or all of the technical features in multiple embodiments, thereby increasing the flexibility of the implementation of the present invention.

[0034] As used in this specification, the singular forms "one", "an" and "the" include plural objects, and the plural form "multiple" includes more than two objects, unless the content clearly indicates otherwise. As used in this specification, the term "or" is usually used in the sense of including "and / or", unless the content clearly indicates otherwise, and the terms "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. Relational terms such as the terms "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate or imply relative importance or implicitly indicate the number of technical features indicated. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] The purpose of the utility model is to provide an accelerated aging test device, which is used to perform accelerated aging tests on implantable medical devices, and can eliminate the interference of the test equipment material on the charging effect and communication stability of the implantable medical devices during the test, thereby improving the accuracy and reliability of the test results.

[0036] In order to make the purpose, advantages and features of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. The same or similar reference numerals in the drawings represent the same or similar components.

[0037] Figure 1 and Figure 2 The overall structural schematic diagram of the accelerated aging test device is shown. Figure 3 and Figure 4 A schematic diagram showing the structure of the different components of the accelerated aging test device. Figures 1 to 4 The accelerated aging test device includes at least one first component 100. Each of the first components 100 includes a non-metallic carrier 1100 and a non-metallic sample container 1200.

[0038] A first recessed positioning groove 1110 is formed on the predetermined surface of the carrier 1100, and the first positioning groove 1110 includes a first sub-positioning groove 1111 and a second sub-positioning groove 1112 that are connected to each other. The second sub-positioning groove 1112 is located at the bottom of the first sub-positioning groove 1111. A plane parallel to the predetermined surface is used as a target plane, and the first sub-positioning groove 1111 and the second sub-positioning groove 1112 are projected onto the target plane, and the projection of the second sub-positioning groove 1112 is located on the inner side of the projection of the first sub-positioning groove 1111. In other words, the first positioning groove 1110 is a stepped structure.

[0039] Please refer to Figure 5 The sample container 1200 includes an inner cup body 1210, an outer cup sleeve 1220, a first liquid inlet 1230 and a first liquid outlet 1240. The inner cup body 1210 has an opening 1211. The outer cup sleeve 1220 is wrapped on the outer surface of the inner cup body 1210, and a receiving cavity 1201 is formed between the inner surface of the outer cup sleeve 1220 and the outer surface of the inner cup body 1210. The first liquid inlet 1230 and the first liquid outlet 1240 are both connected to the outer cup sleeve 1220, and are both in communication with the receiving cavity 1201.

[0040] The optional steps of performing an accelerated aging test on an implantable medical device using the accelerated aging device include:

[0041] Step S10: Place a wireless charging transmitting coil 10 (such as Figure 6 As shown in the figure, the sample container 1200 is placed in the second sub-positioning groove 1112, and the sample container 1200 is partially placed in the first sub-positioning groove 1111.

[0042] Step S20, inject PBS buffer into the inner cup body 1210 of the sample container 1200, immerse the implantable medical device in the PBS buffer, and seal the opening 1211 of the inner cup body 1210 in any appropriate manner, such as plugging the opening 1211 with a sealing plug.

[0043] Step S30: Utilize a liquid circulation mechanism 2100 to cyclically provide liquid of a predetermined temperature to the containing chamber 1201 through the first liquid inlet 1230 and the first liquid outlet 1240, so as to heat the PBS buffer and keep the PBS buffer at a substantially constant temperature.

[0044] Step S40: using a host 20 (such as Figure 6 and Figure 7 As shown in the figure, the host 20 wirelessly communicates with the implantable medical device, and uses the host 20 to control the wireless charging transmitting coil 10 to receive electrical energy and generate an electromagnetic field to wirelessly charge the implantable medical device. A wireless connection can also be established to send and receive signals related to the operation of the implantable medical device to understand the operation status of the implantable medical device.

[0045] The step S40 is performed during the execution of the step S30. It can be understood that the implantable medical device includes a wireless charging receiving coil, and the first sub-positioning groove 1111 is used to roughly limit the sample container 1200 containing the implantable medical device, and the second sub-positioning groove 1112 is used to roughly limit the wireless charging transmitting coil, which can ensure that when the wireless charging transmitting coil 10 generates an electromagnetic field, the wireless charging receiving coil is located in the electromagnetic field, so that the implantable medical device can be wirelessly charged.

[0046] Those skilled in the art know that the charging effect of the implantable medical device and the communication stability between the implantable medical device and the host 20 are used to determine whether the current state of the implantable medical device can work normally to meet the requirements of the aging test. When the implantable medical device is subjected to an accelerated aging test using the accelerated aging test device provided in the embodiment of the utility model, the implantable medical device is placed in the sample container 1200, and the communication stability between the implantable medical device and the host 20 and the wireless charging effect will not be interfered by metal, which is conducive to improving the accuracy and reliability of the test results. The material of the carrier 1100 includes but is not limited to any one of polyformaldehyde, phenolic plastic, and glass fiber. The material of the sample container 1200 should have good stability, and it should not react with the PBS buffer solution or the liquid provided by the liquid circulation mechanism 2100. The optional material is, for example, glass. The liquid provided by the liquid circulation mechanism 2100 can be water.

[0047] Optionally, the cross section of the outer cup sleeve 1220 parallel to the predetermined surface is circular, which is referred to as a first circle. Correspondingly, the cross section of the first sub-positioning groove 1111 parallel to the predetermined surface is also circular, which is referred to as a second circle. The diameter of the second circle matches the diameter of the first circle. In this way, when the sample container 1200 is partially placed in the first sub-positioning groove 1111, the groove wall of the first sub-positioning groove 1111 can clamp the sample container 1200 to better limit the position of the sample container 1200.

[0048] The wireless charging coil 10 includes a planar spiral structure. At least part of the groove wall of the second sub-positioning groove 1112 is arc-shaped, and the diameter of the arc matches the maximum outer diameter of the main body. In this way, when the wireless charging coil 10 is placed in the second sub-positioning groove 1112 and the main body is placed close to the arc-shaped groove wall, the second sub-positioning groove 1112 can well limit the wireless charging coil 10.

[0049] Furthermore, the predetermined surface is further provided with a recessed second positioning groove 1120. The second positioning groove 1120 includes a third sub-positioning groove 1121, and the third sub-positioning groove 1121 is located on one side of the first sub-positioning groove 1111. The third sub-positioning groove 1121 is used to accommodate at least a part of the structure of the host 20.

[0050] The host 20 is connected to the wireless charging transmitting coil 10 via a first wire 30, and the first wire 30 and the wireless charging transmitting coil 10 may be an integrated structure. Figure 6As shown in FIG. 1 , the third positioning groove 1130 is connected to the third sub-positioning groove 1121 and the second sub-positioning groove 1112. A portion of the first wire 30 is accommodated in the third positioning groove 1130, and another portion is accommodated in the second sub-positioning groove 1112. The third sub-positioning groove 1121, the third positioning groove 1130 and the first positioning groove 1110 are arranged in sequence. Herein, the arrangement direction of the third sub-positioning groove 1121, the third positioning groove 1130 and the first positioning groove 1110 is defined as a first direction, so the first direction is parallel to the predetermined surface. In the figure, the first direction is represented by a double-headed arrow X.

[0051] Furthermore, the host 20 is connected to a power source (not shown in the figure) via a second wire 40. The second positioning groove 1120 also includes a fourth sub-positioning groove 1122, and the fourth sub-positioning groove 1122 extends along the first direction. The fourth sub-positioning groove 1122 includes a first groove section and a second groove section (not marked in the figure) connected to each other, the first groove section is located at the bottom of the third sub-positioning groove 1121, and the second groove section is located on a side of the third sub-positioning groove 1121 away from the first sub-positioning groove 1111, and extends to the edge of the support platform 1100. The fourth sub-positioning groove 1122 is used to accommodate a part of the structure of the second wire 40.

[0052] Optionally, the accelerated aging test device further includes a second component 200. The second component 200 includes the aforementioned liquid circulation mechanism 2100. The liquid circulation mechanism 2100 includes a liquid storage portion 2110, a liquid supply pipeline 2120, and a liquid recovery pipeline 2130. The liquid storage portion 2110 includes a liquid storage cavity (not shown in the figure) for storing liquid, and the liquid storage portion 2110 is provided with a second liquid inlet 2140 and a second liquid outlet 2150 communicating with the liquid storage cavity. The liquid supply pipeline 2120 is used to connect with the second liquid outlet 2130 and transport the liquid at a predetermined temperature in the liquid storage cavity to the accommodating cavity 1201, and the liquid recovery pipeline 2130 is used to connect with the second liquid inlet 2140 and recover the liquid in the accommodating cavity 1201 to the liquid storage cavity.

[0053] Specifically, when the accelerated aging test device includes one first component 100, the liquid supply pipeline 2120 is also connected to the first liquid inlet 1230 of the sample container 1200, and the liquid recovery pipeline 2130 is also connected to the first liquid outlet 1240 of the sample container 1200. In this way, the liquid supply pipeline 2120 can transport the liquid at a predetermined temperature in the liquid storage chamber to the containing chamber 1201 of the sample container 1200, and the liquid recovery pipeline 2130 can recover the liquid in the containing chamber 1201 to the liquid storage chamber.

[0054] When the accelerated aging test apparatus includes a plurality of the first components 100, the plurality of the first components 100 are arranged in sequence, wherein the first liquid inlet 1230 of the sample container 1200 of one of the first components 100 is connected to the liquid supply pipeline 2120, the first liquid outlet 1240 of the sample container 1200 of another of the first components 100 is connected to the liquid recovery pipeline 2130, and the first liquid outlet 1240 of the sample container 1200 of one of two adjacent first components 100 is connected to the first liquid inlet 1230 of the sample container 1200 of the other of the first components 100 via a bridge pipeline 300.

[0055] That is, if the accelerated aging test device includes n first components 100, and the n first components 100 are arranged in sequence, n is a positive integer greater than or equal to 2. According to the arrangement order, the first liquid inlet 1230 of the sample container 1200 of the first first component 100 is connected to the liquid supply pipeline 2120, the first liquid outlet 1240 of the sample container 1200 of the nth first component 100 is connected to the liquid recovery pipeline 2130, and the first liquid outlet 1240 of the sample container 1200 of the i-th first component 100 is connected to the first liquid inlet 1230 of the sample container 1200 of the i+1th first component 100 through the bridge pipeline 300. i is a positive integer greater than or equal to 1 and less than n.

[0056] Specific to Figure 2In the illustrated embodiment, the first liquid inlet 1230 of the sample container 1200 of the first first assembly 100 is connected to the liquid supply pipeline 2120, the first liquid outlet 1240 of the sample container 1200 of the first first assembly 100 is connected to the first liquid inlet 1230 of the sample container 1200 of the second first assembly 100 via a bridge pipeline 300, and the first liquid outlet 1240 of the sample container 1200 of the second first assembly 100 is connected to the liquid recovery pipeline 2130. In other embodiments, the accelerated aging test device may include more than three first assemblies 100, and the connection method of more than three first assemblies 100 and the second assemblies 200 is as described above.

[0057] It can be understood that when the accelerated aging test device includes multiple first components 100, accelerated aging tests can be performed on multiple implantable medical devices at the same time. When multiple implantable medical devices are subjected to accelerated aging tests using multiple first components 100, the wireless charging transmitting coil 10 and the host 20 are arranged on each of the carriers 1100. In this case, it is preferred that the fourth sub-positioning groove 1122 penetrates the carrier 1100 in the first direction so that the fourth sub-positioning groove 1122 also includes a third groove section connected to the first groove section. The third groove section is located on one side of the third sub-positioning groove 1121 close to the first sub-positioning groove 1111, and the third groove section and the first sub-positioning groove 1111 are arranged along the second direction, the second direction is parallel to the predetermined surface, and perpendicular to the first direction, and the second direction is represented by a double-headed arrow Y in the figure. Correspondingly, the multiple first components 100 of the accelerated aging test device are arranged along the first direction, and the fourth sub-positioning grooves 1121 of the multiple first components 100 are connected in sequence, so that the second wires 40 connected to the main unit 20 set on each of the first components 100 can be arranged in an orderly manner along at least part of the fourth sub-positioning grooves 1121.

[0058] In addition, in the direction perpendicular to the predetermined surface, the first liquid inlet 1230 is closer to the carrier 1100 than the first liquid outlet 1240. In practice, the predetermined surface of the carrier 1100 may be the upper surface of the carrier 1100, and the direction perpendicular to the predetermined surface is the vertical direction. In this way, the first liquid inlet 1230 is located below the first liquid outlet 1240. In the embodiment of the utility model, a commercially available jacketed beaker can be directly used as the sample container 1200.

[0059] Preferably, a fourth recessed positioning groove 1140 is further provided on the predetermined surface of the carrier 1100, and the fourth positioning groove 1140 is located on one side of the first sub-positioning groove 1111, and can be communicated with the first sub-positioning groove 1111. The fourth positioning groove 1140 is used to accommodate a part of the structure of the pipeline connected to the first liquid inlet 1230 (i.e., the liquid supply pipeline 2120 or the bridge pipeline 300), so that the part of the liquid supply pipeline 2120 or the bridge pipeline 300 adjacent to the first liquid inlet 1230 connected thereto can be arranged more regularly. It can be understood that in order to facilitate the placement of the corresponding pipeline part in the fourth positioning groove 1140, when the sample container 1200 is placed in the first sub-positioning groove 1111, the first liquid inlet 1230 should be arranged corresponding to the fourth positioning groove 1140.

[0060] Preferably, the fourth positioning groove 1140 and the first sub-positioning groove 1111 are also arranged along the first direction, and the fourth positioning groove 1140 and the third sub-positioning groove 1121 are located on the same side of the first sub-positioning groove 1111, and the fourth positioning groove 1140 and the third sub-positioning groove 1121 are arranged at intervals in the second direction. This is conducive to reducing the volume of the carrier 1100 and increasing the effective utilization area of ​​the predetermined surface of the carrier 1100.

[0061] In addition, the second component 200 may also include a monitoring element (not shown in the figure) and a display element 2200. The monitoring element may be arranged in the liquid storage cavity and used to monitor the target parameter of the liquid in the liquid storage cavity. The display element 2200 is connected to the monitoring element in communication and is used to receive and display the target parameter. The target parameter includes but is not limited to liquid level and temperature. It is understood that when the target parameter includes volume, the monitoring element includes a liquid level sensor, and when the target parameter includes temperature, the monitoring element includes a temperature sensor.

[0062] Although the utility model is disclosed as above, it is not limited thereto. Those skilled in the art may make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. An accelerated aging test device for implantable medical devices, characterized in that: It comprises a first component, wherein the first component comprises a non-metallic support platform and a non-metallic sample container; wherein, A concave first positioning groove is formed on the predetermined surface of the carrier platform; the first positioning groove includes a first sub-positioning groove and a second sub-positioning groove which are connected to each other, and the second sub-positioning groove is located at the groove bottom of the first sub-positioning groove; on a plane parallel to the predetermined surface, the projection of the second sub-positioning groove is located on the inner side of the projection of the first sub-positioning groove; The sample container is used to be partially accommodated in the first sub-positioning groove; the sample container includes an inner cup body with an opening and an outer cup sleeve wrapped around the outer surface of the inner cup body, and a receiving cavity is formed between the outer cup sleeve and the inner cup body; a liquid inlet and a liquid outlet connected to the receiving cavity are also formed on the outer cup sleeve.

2. The accelerated aging test device for implantable medical devices according to claim 1, characterized in that: The predetermined surface is also provided with a recessed second positioning groove and a third positioning groove; the second positioning groove includes a third sub-positioning groove, and the third sub-positioning groove is located on one side of the first sub-positioning groove; the third positioning groove connects the third sub-positioning groove and the second sub-positioning groove.

3. The accelerated aging test device for implantable medical devices according to claim 2, characterized in that: In a direction perpendicular to the predetermined surface, the liquid inlet of the sample container is closer to the supporting platform than the liquid outlet, and the liquid inlet of the sample container is used to be connected to a pipeline for liquid circulation; A recessed fourth positioning groove is also provided on the predetermined surface. The fourth positioning groove is located on one side of the first sub-positioning groove and is communicated with the first sub-positioning groove. The fourth positioning groove is used to accommodate a portion of the structure of the pipeline connected to the liquid inlet of the sample container.

4. The accelerated aging test device for implantable medical devices according to claim 3, characterized in that: The third sub-positioning groove, the third positioning groove, and the first positioning groove are arranged in sequence along the first direction; the fourth positioning groove and the third sub-positioning groove are located on the same side of the first positioning groove, and the fourth positioning groove and the third sub-positioning groove are spaced apart in the second direction; the second direction and the first direction are both parallel to the predetermined surface, and the second direction is perpendicular to the first direction.

5. The accelerated aging test device for implantable medical devices according to claim 2, characterized in that: The third sub-positioning groove, the third positioning groove, and the first positioning groove are arranged in sequence along a first direction, and the first direction is parallel to the predetermined surface; the second positioning groove also includes a fourth sub-positioning groove, and the fourth sub-positioning groove extends along the first direction and includes a first groove section and a second groove section connected to each other, the first groove section is located at the bottom of the third sub-positioning groove and is connected to the third sub-positioning groove, and the second groove section is located on a side of the third sub-positioning groove away from the first sub-positioning groove and extends to the edge of the supporting platform.

6. The accelerated aging test device for implantable medical devices according to claim 5, characterized in that: The fourth sub-positioning groove penetrates the bearing platform along the first direction, and further includes a third groove section connected to the first groove section, the third groove section is located on a side of the third sub-positioning groove close to the first sub-positioning groove, and the third groove section and the first sub-positioning groove are arranged along a second direction, the second direction is perpendicular to the first direction, and the second direction is also parallel to the predetermined surface; The accelerated aging test device includes a plurality of the first components, the plurality of the first components are arranged in sequence along the first direction, and the fourth sub-positioning grooves of the plurality of the first components are connected in sequence, and the liquid outlet of the sample container of one of two adjacent first components is connected to the liquid inlet of the sample container of the other first component through a bridge pipe.

7. The accelerated aging test device for implantable medical devices according to any one of claims 1 to 6, characterized in that: The accelerated aging test device also includes a second component, which includes a circulating liquid supply mechanism, and the circulating liquid supply mechanism includes a liquid storage part, a liquid supply pipeline and a liquid recovery pipeline; the liquid storage part includes a liquid storage cavity for storing liquid, the liquid supply pipeline and the liquid recovery pipeline are both connected to the liquid storage cavity, and the liquid supply pipeline is connected to the liquid inlet of one of the sample containers of the first component, and the liquid recovery pipeline is used to communicate with the liquid outlet of one of the sample containers of the first component.

8. The accelerated aging test device for implantable medical devices according to claim 7, characterized in that: The second component also includes a monitoring element and a display element. The monitoring element is used to be arranged on the liquid storage part and monitor the target parameters of the liquid in the liquid storage cavity. The display element is communicatively connected with the monitoring element and is used to receive and display the target parameters; the target parameters include liquid level and temperature.

9. The accelerated aging test device for implantable medical devices according to claim 1, characterized in that: At least a portion of the groove wall of the second sub-positioning groove is arc-shaped.

10. The accelerated aging test device for implantable medical devices according to claim 1, characterized in that: The cross section of the outer cup sleeve parallel to the predetermined surface is a first circle; the cross section of the first sub-positioning groove parallel to the predetermined surface is a second circle, and the diameter of the second circle matches the diameter of the first circle.

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