A welding detection tool for ablation catheter electrodes and connectors

Abstract

The utility model discloses a kind of welding detection tool for ablation catheter electrode and joint, it is related to the technical field of pulse ablation catheter detection, including test box, power supply is arranged in the test box;It further includes detection circuit one and detection circuit two, the detection circuit one is used to detect the connecting sequence between electrode wire harness and electrode body;The detection circuit two is used to detect whether the circuit welded between electrode body and wire harness joint is correct.The utility model is fixed by electrode test clamp fixedly arranged in sequence, clamps multiple electrode bodies, so that the electrode body ordering of multiple permutation and combination is converted into preset fixed ordering, and the electrode wire harness connected by the conductive detection pen of setting each electrode body is detected, and the corresponding relationship of electrode wire harness and electrode body can be quickly determined by relying on the position of LED indicating lamp brightening, so as to facilitate the corresponding power connection position on wire harness joint to be connected by electrode wire harness is quickly determined, and welding production efficiency is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of pulse ablation catheter testing technology, and in particular to a welding testing fixture for ablation catheter electrodes and connectors. Background Technology

[0002] Pulsed electric field ablation is a novel treatment technique for atrial fibrillation. A typical pulsed electric field ablation device consists of a catheter body, electrode heads, a wiring harness, and a wiring harness connector. During the ablation procedure, the electrode heads are brought into contact with the area to be ablated, and then the pulse generator is activated to produce a pulsed electric field, achieving the ablation effect. To effectively improve ablation efficiency and success rate, multiple electrodes are usually designed.

[0003] In existing technologies for fabricating pulsed electric field ablation devices with multiple electrodes, it is necessary to sequentially weld each wire bundle and electrode in a one-to-one correspondence, ensuring that the electrical connections on the wire bundles and connectors are welded in a predetermined order. This facilitates accurate control of each electrode by the controller. Therefore, accurate welding of the wiring sequence can effectively improve production efficiency during manufacturing.

[0004] However, the existing pulse electric field ablation device mainly relies on multimeters for electrode and connector welding inspection. The multimeter is manually operated to distinguish electrodes and wire harnesses in different positions. After confirming the position and sequence of the corresponding electrodes and wire harnesses, the subsequent wire harness connector welding is carried out. However, there are multiple electrode arrangement sequences. Frequent use of multimeters to identify and distinguish electrodes and wire harnesses requires the coordination of multiple people. Moreover, manual operation is prone to operational errors. When a wire sequence welding error occurs, a lot of calibration work is required, which greatly affects the production efficiency of the product. Utility Model Content

[0005] The purpose of this utility model is to provide a welding inspection fixture for ablation catheter electrodes and connectors, so as to solve the technical problems that the welding inspection of electrodes and connectors of pulse electric field ablation devices in the prior art is prone to operational errors when relying on manual operation of a multimeter for inspection and identification, and is not convenient and efficient.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A welding inspection fixture for ablation catheter electrodes and connectors includes a test box containing a power supply; it also includes a first detection circuit and a second detection circuit.

[0008] The first detection circuit is used to detect and confirm the connection sequence between the electrode harness and the electrode body; the first detection circuit includes an ordered conductive clamping device, which is used to fix the electrode body in sequence; the second detection circuit is used to detect whether the circuit welded between the electrode body and the harness connector is correct.

[0009] Preferably, the ordered conductive clamping device includes electrode test clamps, and multiple electrode test clamps are provided and fixedly arranged on one side of the test box. Each electrode test clamp is electrically connected to a power source, and an LED indicator is electrically connected to the circuit between each electrode test clamp and the power source. The electrode test clamps are used to connect one-to-one with the electrode bodies, and the end of each electrode wire bundle away from the corresponding electrode body can be electrically contacted with the power source.

[0010] Preferably, the second detection circuit includes a dedicated connector and a rotary selector switch. The dedicated connector is electrically connected to a power source and is used to mate with a wiring harness connector. The rotary selector switch is electrically connected between the dedicated connector and the power source.

[0011] Preferably, the testing fixture also includes a handheld testing fixture for electrically contacting the ends of the electrode harness.

[0012] Preferably, the handheld testing fixture is a conductive testing pen, and the conductive testing pen is electrically connected to the power supply.

[0013] Preferably, a resistor is electrically connected between the electrode test clip and the LED indicator.

[0014] Preferably, the detection circuit further includes a diode electrically connected to the electrode test clamp.

[0015] Preferably, the detection circuit two further includes a diode two electrically connected to a dedicated connector.

[0016] Preferably, the testing fixture also includes a buzzer, which is electrically connected to the circuit of the ordered conductive clamping device.

[0017] Preferably, a breadboard is installed inside the test box.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model uses an electrode test clamp to hold multiple electrode bodies in a fixed order, converting the various combinations of electrode bodies into a preset fixed order. Furthermore, a conductive probe is used to detect the electrode wire harnesses connected to each electrode body. The correspondence between the electrode wire harness and the electrode body can be quickly determined by the position of the LED indicator lights. This facilitates the rapid determination of the corresponding electrical connection position on the wire harness connector to which the electrode wire harness is to be connected, significantly improving welding production efficiency and welding accuracy.

[0020] 2. After the electrode body is welded to the wire harness connector by the electrode wire harness, the wire harness connector is connected to the special connector in the test fixture. The circuit of each electrode body is turned on and off in turn by rotating the selector switch. The welding condition is quickly evaluated by observing the brightness of the LED lights. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the catheter, electrode body, and electrode wire harness connected together in this utility model;

[0023] Figure 3 This is a circuit diagram showing the connection status of the conductive detection pen's detection electrode body and electrode wire harness in this utility model.

[0024] Figure 4 This is a circuit diagram of the electrode body in this utility model after it is connected to a special connector via a wire harness connector.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Test box; 101. Rotary selector switch; 102. LED indicator; 103. Buzzer; 104. Special connector; 105. Electrode test clip; 106. Conductivity test pen; 107. Resistor; 108. Diode 1; 109. Diode 2; 200. Conduit; 201. Electrode body; 202. Electrode harness; 203. Harness connector; 300. Power supply. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figures 1-4As shown, a welding inspection fixture for ablation catheter electrodes and connectors is provided for inspecting pulsed electric field ablation devices. Existing pulsed electric field ablation devices include a catheter 200, an electrode body 201, and an electrode harness 202. To ensure ablation efficiency, multiple electrode bodies 201 and electrode harnesses 202 are provided. The electrode bodies 201 and electrode harnesses 202 are paired and welded together, and the ends of all electrode harnesses 202 furthest from their corresponding electrode bodies 201 are welded to corresponding harness connectors 203. The electrode harnesses 202 pass through the catheter 200 and can be connected to a pulse generator via the harness connectors 203, facilitating the generation of a pulsed electric field by the electrode bodies 201 for ablation. This inspection fixture is used to inspect the pairing and welding of the electrode bodies 201, electrode harnesses 202, and harness connectors 203, ensuring accurate welding.

[0029] The testing fixture includes a test box 100, which contains a power supply 300. The fixture also includes a first testing circuit and a second testing circuit. The power supply 300 supplies power to both circuits. The first testing circuit is used to detect and confirm the connection sequence of the electrode harness 202 and the electrode body 201, at which point the electrode harness 202 is not yet connected to the harness connector 203. The first testing circuit includes an ordered conductive clamping device, which secures the electrode bodies 201 in sequence, converting various arrangements of the electrode bodies 201 into a predetermined order, reducing errors caused by manual operation. The second testing circuit is used to detect whether the welding circuit between the electrode body 201 and the harness connector 203 is correct, at which point the electrode body 201, electrode harness 300, and harness connector 203 have been successfully welded.

[0030] In some specific implementation schemes, refer to Figure 3 As shown, the ordered conductive clamping device includes electrode test clamps 105. Multiple electrode test clamps 105 are provided and are arranged in sequence on one side of the test box 100. Each electrode test clamp 105 is electrically connected to the terminal of the power supply 300 through a wire. An LED indicator 102 is electrically connected in series in the circuit between each electrode test clamp 105 and the power supply 300. The LED indicator 102 is fixedly installed on the surface of the test box 100. The electrode test clamps 105 are used to connect one-to-one with the electrode bodies 201. The electrode test clamps 105 are conductive and can clamp objects. The end of each electrode wire harness 202 away from the corresponding electrode body 201 can be electrically contacted with the terminal of the power supply 300, forming a closed-loop series circuit with the electrode test clamps 105 and the LED indicator 102. The position of the LED indicator 102 indicates the number of the electrode body 201 corresponding to the electrode wire harness 202, which facilitates the matching and welding of the electrode wire harness 202 with the wire harness connector 203.

[0031] It should be noted that the wire harness connector 203 has multiple solderable electrical contacts, which are used to solder to the ends of the corresponding electrode wire harness 202.

[0032] In some specific implementation plans, such as Figure 4 As shown, the detection circuit 2 includes a dedicated connector 104 and a rotary selector switch 101. The dedicated connector 104 is electrically connected to the terminals of the power supply 300 via wires, and the dedicated connector 104 is used to mate with the wiring harness connector 203. The two can be mated in the form of plug-in connectors. It should be noted that if the terminal of the power supply 300 connected to the electrode test clip 105 is the positive terminal, then the terminal of the power supply 300 connected to the dedicated connector 104 here can be the negative terminal. The rotary selector switch 101 is electrically connected in series between the dedicated connector 104 and the power supply 300, and there are multiple parallel branches between the rotary selector switch 101 and the dedicated connector 104 corresponding to the electrode body 201. The rotary selector switch 101 can be a Harmony XB5 model. Each rotation of the rotary selector switch 101 connects the corresponding branch, while the other branches remain disconnected.

[0033] Once the detection circuit confirms that the electrode harness 202 and the harness connector 203 are matched and soldered, the harness connector 203 is then connected to the special connector 104. Then, by operating the rotary selector switch 101, the branches where different electrode bodies 201 are located are connected in sequence. The order of the LED indicator lights 102 is observed to confirm whether there are any welding abnormalities or mis-soldering in the branches where each electrode body 201 is located.

[0034] In some specific implementations, the testing fixture also includes a handheld testing fixture for the end of the electrical contact electrode harness 202.

[0035] The handheld testing fixture is a conductive testing pen 106, which consists of an insulated handle and a conductive metal pen tip. The conductive testing pen 106 is electrically connected in series with the power supply 300. It should be noted that in order to form a closed-loop circuit in series between the conductive testing pen 106 and the ordered conductive clamping device, when the electrode test clamp 105 of the ordered conductive clamping device is connected to the positive terminal of the power supply 300, the conductive testing pen 106 is connected to the negative terminal of the power supply 300 through a wire. After one end of each electrode wire bundle 202 is connected to the electrode body 201, but not connected to the wire bundle connector 203, the conductive testing pen 106 can be used to contact the end of each electrode wire bundle 202 in sequence. The position of the LED indicator 102 can be used to confirm the position or corresponding number of the electrode body 201 connected to each electrode wire bundle 202, and then the connection position of the wire bundle connector 203 corresponding to each electrode wire bundle 202 can be confirmed. Then, soldering is performed.

[0036] In some specific implementations, a resistor 107 is electrically connected in series between the electrode test clip 105 and the LED indicator 102. The resistor 107 is used to limit the current in the circuit and ensure stable operation of the line.

[0037] In some specific implementations, the detection circuit one also includes a diode one 108 electrically connected in series with the electrode test clip 105. The positions of the diode one 108 and the resistor 107 are interchangeable. The diode one 108 is used to ensure the unidirectional conductivity of the circuit in which it is located.

[0038] In some specific implementations, the detection circuit 2 also includes a diode 2 109 electrically connected in series with the dedicated connector 104.

[0039] In some specific implementations, the testing fixture also includes a buzzer 103, which is electrically connected in series in the circuit of the ordered conductive clamping device. Specifically, it can be connected in series in the circuit between the electrode test clamp 105 and the positive terminal of the power supply 300 via a wire. During the testing process, if the circuit of the buzzer 103 forms a normal closed-loop conduction circuit, the buzzer 103 will emit a prompt sound to remind the operator.

[0040] In some specific implementations, a breadboard is installed inside the test box 100. The breadboard is designed and manufactured specifically for solderless experiments of electronic circuits because it has many small sockets. Since various electronic components can be inserted or removed as needed, soldering is eliminated, saving circuit assembly time. The breadboard is used to fix and install various electronic components, such as resistor 107, diode 108, and diode 109.

[0041] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0042] First, each electrode body 201 selects one end of an electrode wire harness 202 for welding connection, and each electrode wire harness 202 can pass through the conduit 200. Then, it is tested by the testing fixture. During the test, the electrode test clamps 105 arranged in a fixed order first fix and clamp the electrode bodies 201 one by one, so that the electrode bodies 201 with multiple arrangement combinations are converted into a preset fixed order. Then, when each electrode wire harness 202 is not connected to the wire harness connector 203, the operator holds the conductive test pen 106 and touches the end of each electrode wire harness 202 in turn. The position of the LED indicator 102 is used to confirm the position of the electrode body 201 connected to each electrode wire harness 202 or the corresponding electrode number, and then confirms the connection position of the wire harness connector 203 corresponding to each electrode wire harness 202. Then, soldering is performed so that the end of each electrode wire harness 202 away from the corresponding electrode body 201 is soldered to the corresponding position of the wire harness connector 203.

[0043] After the electrode harness 202 and the harness connector 203 are matched and soldered, the harness connector 203 is connected to the special connector 104. Then, by operating the rotary selector switch 101, the branches where different electrode bodies 201 are located are connected in turn. The order of the LED indicator lights 102 is observed to determine whether there are any welding abnormalities or mis-soldering in the branches where each electrode body 201 is located, and the final welding inspection is completed.

[0044] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A welding inspection fixture for ablation catheter electrodes and connectors, comprising a test box (100), wherein a power supply (300) is disposed within the test box (100); characterized in that, It also includes detection circuit one and detection circuit two; The first detection circuit is used to detect and confirm the connection sequence between the electrode harness (202) and the electrode body (201); the first detection circuit includes an ordered conductive clamping device, which is used to fix the electrode body (201) in sequence; the second detection circuit is used to detect whether the circuit welded between the electrode body (201) and the harness connector (203) is correct.

2. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 1, characterized in that, The ordered conductive clamping device includes an electrode test clamp (105), and multiple electrode test clamps (105) are provided. The electrode test clamps (105) are fixedly arranged on one side of the test box (100). Each electrode test clamp (105) is electrically connected to a power supply (300). Each electrode test clamp (105) and the power supply (300) are electrically connected to an LED indicator (102). The electrode test clamp (105) is used to connect one-to-one with an electrode body (201). The end of each electrode wire bundle (202) away from the corresponding electrode body (201) can be electrically contacted with the power supply (300).

3. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 1, characterized in that, The second detection circuit includes a dedicated connector (104) and a rotary selector switch (101). The dedicated connector (104) is electrically connected to the power supply (300) and is used to mate with the wiring harness connector (203). The rotary selector switch (101) is electrically connected between the dedicated connector (104) and the power supply (300).

4. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 1, characterized in that, It also includes a handheld testing fixture for electrically contacting the end of the electrode harness (202).

5. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 4, characterized in that, The handheld testing fixture is a conductive test pen (106), which is electrically connected to a power supply (300).

6. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 2, characterized in that, A resistor (107) is electrically connected between the electrode test clip (105) and the LED indicator (102).

7. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 2, characterized in that, The detection circuit also includes a diode (108) electrically connected to the electrode test clip (105).

8. The welding inspection fixture for ablation catheter electrodes and connectors according to claim 3, characterized in that, The second detection circuit also includes a second diode (109) electrically connected to a dedicated connector (104).

9. A welding inspection fixture for ablation catheter electrodes and connectors according to claim 1, characterized in that, It also includes a buzzer (103), which is electrically connected to the circuit of the ordered conductive clamping device.

10. A welding inspection fixture for ablation catheter electrodes and connectors according to claim 1, characterized in that, A breadboard is installed inside the test box (100).

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