Probe contact tooling for automated testing of implantable medical device circuit boards

Abstract

A probe contact tooling for automatic testing of implantable medical instrument circuit boards comprises: a first guide rail; a displacement platform, movably arranged on the first guide rail, a test board mounting portion and an induction coil mounting portion are arranged on the displacement platform, and the induction coil mounting portion is arranged parallel to the first guide rail; a coil mounting portion of a charging programmer is fixedly arranged on one side of the displacement platform, arranged parallel to the induction coil mounting portion and having a fixed gap. By arranging a test board mounting portion for mounting a test board and an induction coil mounting portion for mounting an induction coil on the displacement platform, and controlling the displacement platform to move along the guide rail, during reliability testing, the alignment of the induction coil and the coil of the charging programmer is controlled by the tooling instead of manually aligning the induction coil and the coil of the charging programmer in the prior art, which saves a lot of labor and greatly improves the accuracy and efficiency of the test.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment detection, and in particular to a probe contact tooling for automatic testing of implantable medical instrument circuit boards. Background Art

[0002] An implantable medical device (IMD) is a medical device installed inside the user's body. This device has a battery and a circuit board (with sensors, chips and other components). The IMD relies on set programs and operating parameters to implement the corresponding therapy. These operating parameters can be set differently according to the user's condition. Because the causes and conditions of the user's disease are different, the implantable medical devices installed in different users generally have different operating states, which are reflected in many aspects of the implantable medical device, such as battery voltage, operating time, power, current size, frequency, etc.

[0003] In order to ensure the stability and safety of the implant, it is usually necessary to conduct a comprehensive inspection of the implant, especially the circuit board of the implant. There are many micro-precision components on the circuit board of the implanted device. During the inspection process, direct contact with the circuit board should be avoided as much as possible to prevent damage to various components. The existing technology uses manual inspection, which has low inspection accuracy and efficiency. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a probe contact tool for automatic testing of implantable medical instrument circuit boards to solve the problem of poor accuracy and low efficiency of manual testing of circuit boards of implantable medical devices in the prior art.

[0005] The embodiment of the present invention also provides an automatic test for detecting a circuit board of an implanted medical device, so as to solve the problem of poor accuracy and low efficiency of manual detection of circuit boards in the prior art.

[0006] According to the first aspect, an embodiment of the present invention provides a probe contact tooling for automatic testing of implantable medical instrument circuit boards, comprising: a first guide rail; a displacement platform, which is driven and movably arranged on the first guide rail, and a test board mounting portion and an induction coil mounting portion are provided on the displacement platform, and the induction coil mounting portion is arranged parallel to the first guide rail; a charging programmer coil mounting portion, which is fixedly arranged on one side of the displacement platform, parallel to the induction coil mounting portion and has a gap.

[0007] It also includes a fixed magnet mounting portion, which is arranged side by side with the charging programmer coil mounting portion.

[0008] It also includes a fixed platform, which is fixedly arranged on one side of the displacement platform, and the charging programmer coil mounting part and the magnet mounting part are arranged on the fixed platform.

[0009] It also includes a second guide rail, which is arranged to cross the first guide rail at a vertical angle, and the first guide rail is driven to be movably arranged on the second guide rail.

[0010] The first guide rail and the second guide rail are both electric guide rails. The first guide rail drives the displacement platform to reciprocate along the first guide rail, and the second guide rail drives the first guide rail to reciprocate along the second guide rail.

[0011] The electric guide rail is an electric screw rod.

[0012] The test board mounting portion includes a plurality of screw holes for fixing the test board.

[0013] An automatic testing method for detecting a circuit board of an implanted medical device using the above-mentioned probe contact tooling comprises the following steps:

[0014] The displacement platform is controlled to move along the first guide rail until the induction coil is aligned with the coil of the charging programmer, and a communication test between the two is performed.

[0015] The following steps are also included:

[0016] After the induction coil communicates with the coil of the charging programmer, confirming to start executing the magnet control function test;

[0017] Control the guide rail to move from a current position along the first guide rail until the reed switch on the circuit board under test approaches and aligns with the magnet;

[0018] Controlling the displacement platform to move in the opposite direction along the first guide rail so that the reed switch of the circuit board under test is away from the magnet;

[0019] The displacement platform is controlled to move along the first guide rail to a position where the induction coil is aligned with the charging coil, and the communication is continued to read the test result.

[0020] The following steps are also included:

[0021] Control the first guide rail to move along the second guide rail, adjust the distance between the charging induction coil of the displacement platform on the first guide rail and the coil of the charging programmer, realize communication, and confirm the charging distance test;

[0022] According to the test requirements, the first guide rail is controlled to move along the second guide rail so that the distance between the induction coil and the charging programmer coil reaches 0 cm, 1 cm, 2 cm and even 10 cm respectively; at different distances, charging is performed and the test results are returned.

[0023] The technical solution of the embodiment of the present invention has the following advantages:

[0024] 1. The probe contact tooling provided in the embodiment of the present invention comprises a first guide rail and a displacement platform. The displacement platform is driven to reciprocate along the first guide rail. A test board mounting portion for mounting a test board and an induction coil mounting portion for mounting an induction coil are arranged on the displacement platform, and the displacement platform is controlled to move along the guide rail. Thus, during reliability testing, the induction coil and the coil of the charging programmer are aligned manually in the prior art and are aligned under the control of the tooling. This saves a lot of labor and greatly improves the test accuracy and test efficiency.

[0025] 2. The probe contact tooling provided in the embodiment of the present invention arranges the magnet mounting part side by side on one side of the charging programmer coil mounting part, so that the magnet for reliability testing can be installed in the magnet mounting part. During the reliability test, the magnet control function test can also be achieved by controlling the displacement platform to move along the guide rail. Compared with the existing technology through manual testing, the accuracy and efficiency of the test are greatly improved.

[0026] 3. The probe contact tooling provided in the embodiment of the present invention further improves the accuracy and efficiency of the test by using an electric guide rail to control the movement of the displacement platform.

[0027] 4. The probe contact tooling provided in the embodiment of the present invention also includes a second guide rail, which is arranged to cross the first guide rail at right angles, and the first guide rail is driven and movably arranged on the second guide rail. This arrangement can realize automatic testing of the charging distance function. Compared with the prior art that relies on manual adjustment of the charging distance between the coil of the charging programmer and the induction coil, the testing efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0029] Figure 1 It is a schematic structural diagram of a probe contact type tooling for automatic testing of a circuit board of an implantable medical instrument according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective.

[0031] Explanation of the accompanying drawings: 1-first guide rail; 2-displacement platform; 21-induction coil mounting part; 22-screw hole; 3-charging programmer coil mounting part; 4-magnet mounting part; 5-fixed platform; 6-second guide rail; 7-tested circuit board mounting part. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] The implanted device communicates wirelessly and charges / powers the implanted battery / capacitor in the body. The implanted device generally includes a circuit board, a charging and communication coil, a battery, an output electrode, and a plurality of sampling resistors. The circuit board under test in the embodiment of the present invention is a circuit board in the implanted device, which is provided with a variety of electrical components and is the core component of the implanted device, and is used to control the working state of the implanted device.

[0037] An embodiment of the present invention provides a probe contact tooling for an automatic detection system for detecting circuit boards of implanted medical devices. In the embodiment of the present invention, the only object to be tested is the circuit board to be tested, which is inserted into a test board. The induction coil is part of the test system, simulating the charging and communication coils of the implanted device; the charging programmer simulates an in vitro charging device, and the charging programmer is also provided with an induction coil. The test board is provided with components for providing a load to the circuit board to be tested, the peripheral circuit of the circuit board to be tested, and an interface for connecting the circuit board to be tested and the induction coil, and the induction coil is connected to the circuit board to be tested through the test board. The components on the test board may include, for example, a number of simulated load components, relays, simulated switches, electrodes, resistors and other devices, which are used to simulate the components such as output electrodes, sampling resistors and other devices connected to the circuit board to be tested 10 in actual products, as well as to simulate the actual load conditions of the circuit board to be tested 10.

[0038] It should be noted that the probe-type contact tooling of the embodiment of the present invention is suitable for an automatic testing system for detecting circuit boards of implanted medical instruments. The system can be used to detect rechargeable and non-rechargeable products such as DBS (deep brain stimulation), VNS (vagusneve stimulation), SCS (Spinal cord stimulation) and SNM (Sacral Neuromodulation).

[0039] The above is an introduction to the functions of the various components in the automatic test system of the embodiment of the present invention. The following is an explanation of the probe contact tooling of the embodiment of the present invention:

[0040] like Figure 1 and Figure 2 As shown, a probe contact tooling for automatic testing of implantable medical instrument circuit boards includes a first guide rail 1, a displacement platform 2, and a fixed platform 5. The displacement platform 2 is movably arranged on the first guide rail 1, and a test board mounting portion and an induction coil mounting portion 21 are provided on the displacement platform 2, and the induction coil mounting portion 21 is arranged parallel to the first guide rail 1; the fixed platform 5 is fixedly arranged on one side of the displacement platform 2, and a charging programmer coil mounting portion 3 and a magnet mounting portion 4 are provided on the fixed platform 5, and the charging programmer coil mounting portion 3 and the magnet mounting portion 4 are arranged side by side and parallel to the induction coil mounting portion 21 and the guide rail, and there is a gap for testing between the charging programmer coil mounting portion 3 and the magnet mounting portion 4 and the induction coil mounting portion 21.

[0041] The probe contact tooling also includes a circuit board mounting portion 7 for accommodating the circuit board under test. The circuit board under test is inserted into the test board. The side of the test board on which the circuit board under test is inserted faces downward and is fastened to the displacement platform 2 through four screw holes and screws arranged in a rectangular shape. The circuit board under test extends into the circuit board mounting portion 7 in the shape of a groove.

[0042] The probe contact tooling provided in the embodiment of the present invention provides a test board mounting portion for mounting a test board, an induction coil mounting portion 21 for mounting an induction coil on the displacement platform 2, and controls the displacement platform 2 to move along the guide rail, so that during reliability testing, the induction coil and the coil of the charging programmer are aligned manually instead of being aligned manually in the prior art, which saves a lot of labor and greatly improves the accuracy and efficiency of the test. The probe contact tooling provided in the embodiment of the present invention arranges the magnet mounting portion 4 side by side on one side of the charging programmer coil mounting portion 3, so that the magnet for reliability testing can be installed in the magnet mounting portion 4. During reliability testing, the magnet control function test can also be realized by controlling the displacement platform 2 to move along the guide rail. Compared with the prior art manual testing method, the accuracy and efficiency of the test are greatly improved.

[0043] In this embodiment, the test mounting portion includes four screw holes 22 arranged in a rectangular shape, and the test board is fixed on the displacement platform through the four screw holes 22. A circuit board mounting portion 7 is also provided at the approximate center of the four screw holes, and the circuit board to be tested is mounted on the circuit board mounting portion 7.

[0044] In order to further improve the test efficiency, the guide rail used in this embodiment is an electric guide rail, which drives the displacement platform 2 to move back and forth on it. Furthermore, in this embodiment, the guide rail is an electric screw, which means that a motor is set on one side of the screw, and the screw is driven to rotate by the rotation of the motor; a nut that cooperates with the electric screw is provided at the bottom of the displacement platform 2, and the screw rotates under the drive of the motor to drive the nut and the displacement platform 2 to move along the screw. By using an electric guide rail to control the movement distance of the displacement platform 2 more accurately, the accuracy and efficiency of the test can be further improved.

[0045] It should be noted that the present invention does not specifically limit the structure of the guide rail. In other embodiments, the guide rail can also be a manually driven screw rod, and a hand wheel is installed on one side of the screw rod. The rotation of the hand wheel drives the screw rod to rotate, thereby driving the nut and the displacement platform 2 to move along the screw rod. In addition, the guide rail can also be a combination of a slide groove and a protrusion, and the method of driving the displacement platform 2 can also be a hydraulic drive or a pneumatic drive, which are not listed here one by one.

[0046] Furthermore, an embodiment of the present invention also provides an automatic detection method for detecting a circuit board of an implanted medical device, comprising the above-mentioned probe contact tooling, a test board, an induction coil, a magnet and a circuit board to be tested, wherein the test board is installed on the test board mounting portion, the induction coil is installed on the induction coil mounting portion 21, and the circuit board to be tested is plugged into the test board.

[0047] like Figure 2 As shown, an embodiment of the present invention further provides an automatic testing method for detecting a circuit board of an implanted medical device using the above-mentioned probe contact tooling, wherein the steps involved in the communication function test are:

[0048] S1 The first guide rail 1 controls the movement of the displacement platform 2 so that the induction coil on the displacement platform 2 is aligned with the coil of the charging programmer to achieve communication between the two.

[0049] The steps involved in the magnet control function test are:

[0050] S1 The first guide rail 1 controls the movement of the displacement platform 2 to align the induction coil with the charging programmer coil to achieve communication and confirm the start of the magnet control function test;

[0051] S2 starts from this position, the first guide rail 1 controls the displacement platform 2 to move so that the reed switch on the circuit board under test approaches and aligns with the magnet;

[0052] S3 The first guide rail 1 controls the displacement platform 2 to move so that the reed switch on the circuit board under test is away from the magnet;

[0053] S4 The first guide rail 1 controls the displacement platform 2 to move to the position where the induction coil is aligned with the charging programmer coil, continues communication, and reads the test results.

[0054] The steps involved in the charging distance test are:

[0055] S1 The second guide rail 6 controls the movement of the first guide rail 1, adjusts the distance between the charging induction coil of the displacement platform 2 on the first guide rail 1 and the coil of the charging programmer, realizes communication, and confirms the charging distance test;

[0056] According to the test requirements, S2 controls the first guide rail 1 to move along the second guide rail 6 so that the distance between the induction coil and the charging programmer coil reaches 0cm, 1cm, 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm, and 10cm respectively; charging is performed at different distances and the test results are returned.

[0057] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A probe contact tool for automatic testing of implantable medical instrument circuit boards, characterized in that: include: A first guide rail (1); A displacement platform (2) is driven and movably arranged on the first guide rail (1), the displacement platform (2) being provided with a test board mounting portion and an induction coil mounting portion (21), the induction coil mounting portion (21) being arranged parallel to the first guide rail (1); The charging programmer coil mounting part (3) is fixedly arranged on one side of the displacement platform (2), and is arranged parallel to the induction coil mounting part (21) with a gap therebetween; it also includes a second guide rail (6), the second guide rail (6) is arranged perpendicularly and crosswise with the first guide rail (1), and the first guide rail (1) is driven and movably arranged on the second guide rail (6); the first guide rail (1) and the second guide rail (6) are both electric guide rails, the first guide rail (1) drives the displacement platform (2) to reciprocate along the first guide rail (1), and the second guide rail (6) drives the first guide rail (1) to reciprocate along the second guide rail (6); it also includes a fixedly arranged magnet mounting part (4), and the magnet mounting part (4) is arranged side by side with the charging programmer coil mounting part (3).

2. The probe contact tooling according to claim 1, characterized in that: It also includes a fixed platform (5), which is fixedly arranged on one side of the displacement platform (2), and the charging programmer coil mounting part (3) and the magnet mounting part (4) are arranged on the fixed platform (5).

3. The probe contact tooling according to claim 1, characterized in that: The electric guide rail is an electric screw rod.

4. The probe contact tooling according to claim 1, characterized in that: The test board mounting portion comprises a plurality of screw holes (22) for fixing the test board.

5. An automatic testing method for detecting a circuit board of an implanted medical device using the probe contact tooling according to any one of claims 1 to 4, characterized in that: The following steps are involved: The displacement platform (2) is controlled to move along the first guide rail (1) until the induction coil is aligned with the coil of the charging programmer, and a communication test between the two is performed.

6. The automatic testing method according to claim 5, characterized in that: The following steps are also included: After the induction coil communicates with the coil of the charging programmer, confirming to start executing the magnet control function test; Controlling the guide rail to move from a current position along the first guide rail (1) until the reed switch on the circuit board under test approaches and aligns with the magnet; Controlling the displacement platform (2) to move in the opposite direction along the first guide rail (1) so that the reed switch of the circuit board under test is away from the magnet; The displacement platform (2) is controlled to move along the first guide rail (1) to a position where the induction coil is aligned with the charging coil, and communication is continued to read the test result.

7. The automatic testing method according to claim 6, characterized in that: The following steps are also included: Controlling the first guide rail (1) to move along the second guide rail (6), adjusting the distance between the charging induction coil of the displacement platform (2) on the first guide rail (1) and the coil of the charging programmer, achieving communication, and confirming the charging distance test; According to the test requirements, the first guide rail (1) is controlled to move along the second guide rail (6) so that the distance between the induction coil and the charging programmer coil reaches 0 cm, 1 cm, 2 cm or even 10 cm respectively; charging is performed and the test results are returned under different distance conditions.

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