Testing tool

Abstract

The utility model relates to a testing tool which comprises a testing support. The first test station is arranged on the test bracket and is used for testing the resonance performance of the ultrasonic knife head; the second test station is arranged on the test bracket and is used for testing the cutting performance of the ultrasonic knife head; the power unit is mounted on the test bracket and is used for driving the ultrasonic knife head to reciprocate between the first test station and the second test station and driving the ultrasonic knife head to be close to or far away from the first test station or the second test station; the clamping assembly is installed on the power unit and used for clamping the ultrasonic knife head; and the trigger driving assembly is installed on the clamping assembly and used for driving a trigger on the ultrasonic knife head to control opening and closing of a clamp on the ultrasonic knife head, and the ultrasonic knife head is subjected to a resonance performance test on the first test station and a cutting performance test on the second test station respectively. The accuracy of the test result of the service life of the ultrasonic knife head can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic scalpel head performance testing, in particular to a testing tool for testing the service life of an ultrasonic scalpel head. Background Art

[0002] Ultrasonic soft tissue cutting and hemostasis equipment (hereinafter referred to as ultrasonic knife system) has the characteristics of fine cutting, safety, tissue selectivity and low-temperature hemostasis, and has been increasingly used in clinical surgical treatment, such as Figure 1 As shown, the existing ultrasonic scalpel system includes an ultrasonic scalpel host A, a blade head and a foot switch C. The blade head includes a transducer B, an operating handle D, a drive trigger E and a cutter, and the cutter includes a blade rod H, a cutting head F and a clamp G. Under the action of the drive trigger E, the clamp G cooperates with the cutting head F to clamp the tissue to be cut, thereby completing the resection of the tissue to be cut. Since the cutting head F cuts the tissue to be cut, the change in cutting impedance will affect the service life of the cutting head F during the operation.

[0003] At present, in order to obtain relevant data on the service life of cutting heads and use it to check the qualification rate of mass-produced cutting heads, sampling tests will be carried out on the mass-produced cutting heads before they leave the factory. For example, if 1,000 cutting heads are produced in a batch, 20-50 heads will be taken for testing. Based on whether the qualification rate of the test results meets the predetermined requirements, it is judged whether the service life or performance of the mass-produced cutting heads meet the factory requirements.

[0004] At present, the service life of cutting heads is tested by aging tests or fatigue tests. In the existing technology, some use manual testing to test the service life of cutting heads, which is not only inefficient, but also has many unstable factors in human operation, which will affect the accuracy of the test results; some use corresponding testing devices to test the service life of cutting heads, such as testing the single action of opening and closing the clamp to cooperate with the cutting head to achieve the cutting speed of the simulated tissue to judge the service life of the cutting head. Due to the influence of real factors such as the wear rate of the clamp and the fact that the cutting head does not simulate the cutting in the real environment, the detected service life data of the cutting head will not match the actual service life, thereby affecting the factory efficiency of the cutting head. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] The utility model provides a testing tool, which can improve the accuracy of the test results of the service life of the ultrasonic scalpel head and the applicability of the testing tool by completing the test of its resonance performance on the first test station and the test of its cutting performance on the second test station respectively.

[0007] (2) Technical solution

[0008] In the first aspect, an embodiment of the present invention proposes a test fixture for testing the service life of an ultrasonic scalpel head, comprising a test bracket; and a first test station, which is arranged on the test bracket and is used to test the resonance performance of the ultrasonic scalpel head; and a second test station, which is arranged on the test bracket and is used to test the cutting performance of the ultrasonic scalpel head; and a power unit, which is installed on the test bracket and is used to drive the ultrasonic scalpel head to reciprocate between the first test station and the second test station and to drive the ultrasonic scalpel head close to or away from the first test station or the second test station; and a clamping assembly, which is installed on the power unit and is used to clamp the ultrasonic scalpel head; and a trigger drive assembly, which is installed on the clamping assembly and is used to drive the trigger on the ultrasonic scalpel head to control the opening and closing of the clamp on the ultrasonic scalpel head.

[0009] Furthermore, the power unit includes a first drive assembly, mounted on the test bracket, for driving the ultrasonic scalpel head to reciprocate between the first test station and the second test station; and a second drive assembly, mounted on the first drive assembly, for driving the ultrasonic scalpel head close to or away from the first test station or the second test station, wherein the clamping assembly is mounted on the second drive assembly.

[0010] Furthermore, the first drive assembly includes a first slide mounted on the test bracket; a first slider slidably mounted on the first slide; a first screw rod rotatably mounted on the first slide and threadedly connected to the first slider; and a first drive motor mounted on the first slide and drivingly connected to the first screw rod.

[0011] Furthermore, the second drive assembly includes a second slide mounted on the first slide; a second slide slidably mounted on the second slide; a second screw rod rotatably mounted on the second slide and threadedly connected to the second slide; and a second drive motor mounted on the second slide and drivingly connected to the second screw rod, wherein the movement direction of the second slide is perpendicular to the movement direction of the first slide.

[0012] Furthermore, it also includes a sensor assembly arranged on the test bracket, the sensor assembly including a first position sensor arranged on the first slide and close to one end of the first drive motor, for detecting whether the first slider has moved into place; and a second position sensor arranged on the first slide and away from one end of the first drive motor, for detecting whether the first slider has moved into place; and a third position sensor arranged on the second slide and close to one end of the second drive motor, for detecting whether the second slider has moved into place; and a fourth position sensor arranged on the second slide and away from one end of the second drive motor, for detecting whether the second slider has moved into place; and a fifth position sensor arranged on the second slide and located between the third position sensor and the fourth position sensor, for detecting whether the second slider has moved into place.

[0013] Furthermore, the clamping assembly includes a mounting plate mounted on the second slider; and a quick clamp mounted on the mounting plate and used for quickly clamping the ultrasonic scalpel head.

[0014] Furthermore, the clamping assembly also includes a fixed block arranged on the mounting plate and used to place the ultrasonic scalpel head, the fixed block is provided with an arc groove for placing the ultrasonic scalpel head, the fixed block is mounted on the quick clamp, and the mounting plate includes a supporting portion for supporting the knife rod on the ultrasonic scalpel head and a mounting portion on which the trigger drive assembly is installed.

[0015] Furthermore, the trigger drive assembly includes a telescopic cylinder mounted on the mounting plate; a push rod connected to the driving end of the telescopic cylinder; and a push block connected to an end of the push rod away from the telescopic cylinder.

[0016] Furthermore, the second test station is provided with a load simulation unit for simulating the load clamped by the clamp on the ultrasonic scalpel head after closing.

[0017] Furthermore, the load simulation unit includes a motor mounting seat mounted on the second test station; a third drive motor mounted on the motor mounting seat; a load mounting seat mounted on the second test station; a rotating shaft rotatably mounted on the load mounting seat and connected to the drive shaft of the drive motor; and a turntable mounted on the rotating shaft, the load being mounted on the turntable, wherein the turntable is provided with a groove for mounting the load.

[0018] (3) Beneficial effects

[0019] In summary, the utility model completes the test of the resonance performance of the ultrasonic scalpel head on the first test station and the test of its cutting performance on the second test station respectively, and uses the water-spraying test on the first test station to simulate the ultrasonic scalpel head under real-time changing impedance, that is, to test whether the ultrasonic scalpel head can still maintain a resonant state under real-time changing impedance in a real surgical environment. By adding the influencing factors of whether the ultrasonic scalpel head can achieve resonance due to real-time changes in impedance in a simulated real cutting environment, it can not only further improve the accuracy of the test results of the service life of the ultrasonic scalpel head, but also complete the tests of resonance performance and cutting performance on the same test tool, thereby improving the applicability of the test tool.

[0020] The utility model can judge in advance whether the service life of the ultrasonic scalpel head has expired through the test results of the resonance performance of the ultrasonic scalpel head at the first test station, without the need to test the cutting performance, thereby improving the working efficiency of the test tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural diagram of an ultrasonic knife system in the prior art.

[0023] Figure 2 It is a structural schematic diagram of the test tooling of the present utility model.

[0024] Figure 3 This is another structural schematic diagram of the test tool of the present utility model.

[0025] Figure 4 It is a schematic diagram of the assembly structure of the clamping component and the trigger driving component of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the clamping assembly and the trigger driving assembly of the utility model in a working state.

[0027] Figure 6 It is a structural diagram of the load simulation unit of the utility model.

[0028] Figure 7 This is another structural diagram of the load simulation unit of the utility model.

[0029] In the picture:

[0030] 1-test bracket; 10-load; 11-base; 12-side plate; 13-support column;

[0031] 2-first test station; 20-container;

[0032] 3- Second test station;

[0033] 4-first drive assembly; 41-first slide; 42-first slider; 43-first screw rod; 44-first drive motor; 45-first position sensor; 46-second position sensor;

[0034] 5-second drive assembly; 51-second slide; 52-second slider; 53-second screw rod; 54-second drive motor; 55-third position sensor; 56-fifth position sensor; 57-fourth position sensor;

[0035] 6-clamping assembly; 61-mounting plate; 62-fixing block; 63-quick clamp; 611-support part; 612-mounting part; 621-arc groove;

[0036] 7-trigger drive assembly; 71-telescopic cylinder; 72-push rod; 73-push block;

[0037] 8-motor mounting seat; 81-third drive motor; 82-load mounting seat; 83-rotating shaft; 84-turntable; 841-groove. DETAILED DESCRIPTION

[0038] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. That is, the present invention is not limited to the described embodiments and covers any modifications, replacements, and improvements to the parts, components, and connection methods without departing from the spirit of the present invention.

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] like Figure 2 and Figure 3As shown, the utility model relates to a test fixture for testing the service life of an ultrasonic scalpel head, the test fixture includes a test bracket 1, exemplarily, the test bracket 1 includes a base 11 and a side panel 12 and a support column 13, the side panel 12 is mounted on the base 11 and is located above the base 11, the support column 13 is mounted on the base 11 and is located below the base 11, the support column 13 includes four, evenly arranged below the base 11, and the test bracket 1 is arranged in an L-shape as a whole; and a first test station 2 is arranged on the test bracket 1 and is used to test the resonant performance of the ultrasonic scalpel head, exemplarily, the first test station 2 is arranged on the base 11 of the test bracket 1, and a container 20 filled with liquid is provided on the first test station 2, the ultrasonic scalpel head to be tested (including Figure 1The transducer B, operating handle D, trigger E, knife rod H, cutting blade F and clamp G shown in the figure are subjected to a water-pumping test to simulate whether the ultrasonic scalpel head can maintain a resonant state under the state of real-time impedance change, that is, whether it can be normally tracked by the ultrasonic scalpel host. It should be noted that during the test, the transducer B needs to be powered on by the ultrasonic scalpel host A through a cable, and the water-pumping test refers to immersing at least half of the cutting blade on the ultrasonic scalpel head in the liquid of the container 20, which is water, and then driving the transducer to vibrate and transmit it to the cutting blade F of the ultrasonic scalpel head through the ultrasonic scalpel host A, so that the cutting blade F is tested for drainage, that is, vibrating the water covering the ultrasonic scalpel head. During the drainage process, the blade head F will cause the load impedance in contact with the cutting blade head F to change in real time, that is, water will flow during the drainage process, causing the contact area between the blade head F and the cutting blade head F to change, thereby achieving the purpose of simulating a real surgical environment. Since water will splash during the drainage process, by observing the changes in the water surface and the frequency tracking results of the ultrasonic scalpel host (if the ultrasonic scalpel host does not issue an alarm prompt sound, it is considered that the ultrasonic scalpel head can track the frequency normally), it can be judged that the cutting blade head F of the ultrasonic scalpel head can reach a resonant state. On the contrary, if the ultrasonic scalpel host issues an alarm prompt sound, it can be judged that the ultrasonic scalpel head cannot reach a resonant state, thereby judging that the service life of the ultrasonic scalpel head at this time has expired. Therefore, the ultrasonic scalpel is tested at the first test station. The test result of the resonance performance of the head can determine in advance whether the service life of the ultrasonic scalpel head has expired, and there is no need to test the cutting performance, which improves the working efficiency of the test tooling; and a second test station 3 is set on the test bracket 1 and used to test the cutting performance of the ultrasonic scalpel head. For example, the second test station 3 is set on the base 11 of the test bracket 1 and is set downstream of the first test station 2. The second test station 3 is used to test the cutting performance of the cutting head F on the ultrasonic scalpel head. The load can be a flexible plastic or rubber product that simulates the large intestine, pig stomach, or pig liver. The simulated load is clamped and cut by the cutting head F and the clamp G, and the ultrasonic scalpel host A is used to detect The corresponding prompt sound emitted by measuring the degree of impedance change when the simulated load is cut off is identified to judge that the simulated load has been cut, so as to feedback that the cutting performance of the cutting blade head F at this time still meets the cutting requirements. On the contrary, if the ultrasonic scalpel head fails to cut off the simulated load within a preset time (for example, 10s) by using the ultrasonic scalpel host A to detect that the cutting performance of the cutting blade head F on the ultrasonic scalpel head at this time no longer meets the cutting requirements, that is, the service life of the ultrasonic scalpel head is terminated. By accumulating the previously completed test time of the resonance performance of the ultrasonic scalpel head and the test time of the cutting performance of the ultrasonic scalpel head, the test time can be obtained by a timer set in the controller to obtain the final service life data of the ultrasonic scalpel head;And a power unit, the power unit is installed on the test bracket 1, and is used to drive the ultrasonic scalpel head to be tested to reciprocate between the first test station 2 and the second test station 3 and to drive the ultrasonic scalpel head to be tested to approach or move away from the first test station 2 or the second test station 3. For example, the power unit is installed on the side plate 12 of the test bracket 1, and drives the ultrasonic scalpel head to reciprocate between the first test station 2 and the second test station 3. When the ultrasonic scalpel head is in the first test station 2 for the resonance performance test, the power unit can drive the ultrasonic scalpel head to approach or move away from the first test station 2. Similarly, when the ultrasonic scalpel head is in the second test station 3 for the cutting performance test, the power unit can drive the ultrasonic scalpel head to move back and forth between the first test station 2 and the second test station 3. The ultrasonic scalpel head can be moved closer to or further away from the second test station 3, so the ultrasonic scalpel head can complete resonance performance and cutting performance tests on the same test fixture, improving the applicability of the test fixture; a clamping assembly 6 mounted on the power unit and used to clamp the ultrasonic scalpel head to be tested. By mounting the clamping assembly 6 on the power unit, the clamping assembly and the ultrasonic scalpel head can move synchronously under the drive of the power unit, ensuring the consistency of the ultrasonic scalpel head movement and preventing the ultrasonic scalpel head from deviating during movement and affecting the test results, resulting in low test accuracy; and a trigger driving assembly 7 mounted on the clamping assembly 6 and used to drive the trigger on the ultrasonic scalpel head to be tested to control the opening and closing of the clamp on the ultrasonic scalpel head.

[0041] The utility model tests the resonance performance of the ultrasonic scalpel head on a first test station and the cutting performance on a second test station, and uses the water-spraying test on the first test station to simulate the ultrasonic scalpel head under real-time changing impedance, that is, to test whether the ultrasonic scalpel head can still maintain a resonant state under real-time changing impedance in a simulated real surgical environment. By adding the influencing factor of whether the ultrasonic scalpel head can achieve resonance due to real-time changes in impedance in a simulated real cutting environment, the accuracy of the test results of the service life of the ultrasonic scalpel head can be further improved.

[0042] As a preferred embodiment, Figure 2 and Figure 3As shown, the power unit includes a first drive assembly 4 mounted on the test bracket 1, the first drive assembly 4 is used to drive the ultrasonic scalpel head to be tested to reciprocate between the first test station 2 and the second test station 3; and a second drive assembly 5 mounted on the first drive assembly 4, the second drive assembly 5 is used to drive the ultrasonic scalpel head to be tested close to or away from the first test station 2 or the second test station 3, wherein the second drive assembly 5 is installed with a clamping assembly 6, specifically, when the ultrasonic scalpel head to be tested is at the first test station 2, the second drive assembly 5 is used to drive the ultrasonic scalpel head to be tested close to or away from the first test station 2, similarly, when the ultrasonic scalpel head to be tested is at the second test station 3, the second drive assembly 5 is used to drive the ultrasonic scalpel head to be tested close to or away from the second test station 3.

[0043] As another preferred embodiment, Figure 2 and Figure 3 As shown, the first drive assembly 4 includes a first slide 41 mounted on the test bracket 1; a first slider 42 slidably mounted on the first slide 41; a first screw rod 43 rotatably mounted on the first slide 41 and threadedly connected to the first slider 42; and a first drive motor 44 mounted on the first slide 41 and drivingly connected to the first screw rod 43.

[0044] As another optional implementation.

[0045] Preferably, if Figure 2 and Figure 3 As shown, the second drive assembly 5 includes a second slide 51 mounted on the first slider 42; a second slider 52 slidably mounted on the second slide 51; a second screw 53 rotatably mounted on the second slider 52 and threadedly connected to the second slider 52; and a second drive motor 54 mounted on the second slide 51 and drivingly connected to the second screw 53. The clamping assembly 6 is mounted on the second slider 52, wherein the movement direction of the second slider 52 is perpendicular to the movement direction of the first slider 42. For example, the movement direction of the first slider 42 is horizontal movement, thereby realizing the reciprocating movement of the ultrasonic scalpel head to be tested between the first test station 2 and the second test station 3. The movement direction of the second slider 52 is vertical movement, thereby realizing the ultrasonic scalpel head to be tested close to or away from the first test station 2 or the second test station 3, ensuring that the ultrasonic scalpel head to be tested has movement in both horizontal and vertical directions, which can meet the requirements that the ultrasonic scalpel head to be tested can complete the resonance performance and cutting performance tests on the same test fixture, thereby improving the applicability of the test fixture.

[0046] Preferably, if Figure 2 and Figure 3As shown, the test fixture also includes a sensor assembly arranged on the test bracket 1, the sensor assembly including a first position sensor 45, which is arranged on the first slide 41 and close to one end of the first drive motor 44, for detecting whether the first slider 42 has moved into place; and a second position sensor 46, which is arranged on the first slide 41 and away from one end of the first drive motor 44, for detecting whether the first slider 42 has moved into place; and a third position sensor 55, which is arranged on the second slide 51 and close to one end of the second drive motor 54, for detecting whether the second slider 52 has moved into place; and a fourth position sensor 57, which is arranged on the second slide 51 and away from one end of the second drive motor 54, for detecting whether the second slider 52 has moved into place; and a fifth position sensor 56, which is arranged on the second slide 51 and located between the third position sensor 55 and the fourth position sensor 57, for detecting whether the second slider 52 has moved into place.

[0047] Exemplarily, the test bracket 1 is further provided with a controller (not shown in the figure) for controlling the start and stop of the first drive motor 44 and the second drive motor 54. Specifically, in order to accurately control the first slider 42 between the first test station 2 and the second test station 3 so as to meet the requirements of the ultrasonic scalpel head for reciprocating motion between the first test station 2 and the second test station 3 and prevent the first slider 42 from colliding with the first slide 41, the first position sensor 45 and the second position sensor 46 are respectively arranged on the first slide 41 and located above the corresponding first test station 2 and the second test station 3. This not only meets the reciprocating motion of the ultrasonic scalpel head to be tested, but also limits the movement position of the ultrasonic scalpel head. When the first position sensor 45 and the second position sensor 46 respectively detect the first slider 42, the controller controls the first drive motor 44 to stop driving the first screw rod 43 to move and controls the second drive motor 54 to start. Similarly, in order to test the resonance performance and cutting performance of the ultrasonic scalpel head, The second slider 52 needs to be moved away from or close to the corresponding test station on the first test station 2 or the second test station 3, that is, under the drive of the second drive motor 54, the second screw rod 53 drives the second slider 52 to drive the clamping assembly 6 to drive the ultrasonic scalpel head to move back and forth. When the third position sensor 55 detects the second slider 52, the controller controls the second drive motor 54 to stop driving the second screw rod 53 to move and controls the first drive motor 44 to start. When the fourth position sensor 57 detects the second slider 52, the controller controls the second drive motor 54 to stop driving the second screw rod 53 to move and controls the telescopic cylinder 71 (detailed below) to drive the trigger on the ultrasonic scalpel head to control the clamp on the ultrasonic scalpel head to close and clamp the load 10, and then cut the load 10 to complete the cutting performance test. Similarly, the third position sensor 55 and the fourth position sensor 57 can also limit the movement position of the ultrasonic scalpel head. After the fifth position sensor 56 detects that the second slider 52 is in place, it is convenient for the ultrasonic scalpel head to be tested to be disassembled and assembled on the clamping assembly.

[0048] Preferably, if Figure 4 and Figure 5 As shown, the clamping assembly 6 includes a mounting plate 61 mounted on the second slider 52; and a quick clamp 63 mounted on the mounting plate 61 and used to quickly clamp the ultrasonic scalpel head to be tested. Specifically, the quick clamp 63 is provided with at least two and is arranged on the same side of the mounting plate 61, which can improve the reliability of clamping the operating handle D on the ultrasonic scalpel head.

[0049] Preferably, if Figure 4 and Figure 5As shown, the clamping assembly 6 also includes a fixed block 62 arranged on the mounting plate 61 and used to place the ultrasonic scalpel head, the fixed block 62 is provided with an arc groove 621 for placing the operating handle D of the ultrasonic scalpel head to be tested, the fixed block 62 is mounted on the quick clamp 63, the mounting plate 61 includes a supporting portion 611 for supporting the knife rod H on the ultrasonic scalpel head to be tested and a mounting portion 612 on which the trigger drive assembly 7 is mounted. By installing the trigger drive assembly and the clamping assembly on the second slider 52, it is ensured that the trigger drive assembly can control the stability of the opening and closing of the clamp on the ultrasonic scalpel head to be tested by the trigger on the ultrasonic scalpel head.

[0050] Preferably, if Figure 4 and Figure 5 As shown, the trigger drive assembly 7 includes a telescopic cylinder 71 mounted on the mounting plate 61; a push rod 72 connected to the driving end of the telescopic cylinder 71; and a push block 73 connected to the end of the push rod 72 away from the telescopic cylinder 71. For example, the telescopic cylinder 71 is mounted on the mounting portion 612 of the mounting plate 61. The telescopic cylinder 71 drives the push rod 72 to drive the push block 73 to squeeze or release the trigger E on the ultrasonic scalpel head to be tested to control the closing of the clamp G on the ultrasonic scalpel head, so as to achieve clamping of the load 10.

[0051] Preferably, if Figure 2 and Figure 3 as well as Figure 6 and Figure 7 As shown, the second test station 3 is provided with a load simulation unit for simulating the load 10 clamped by the clamp on the ultrasonic knife head to be tested after closing, and the load simulation unit includes a motor mounting seat 8 mounted on the second test station 3; and a third drive motor 81 mounted on the motor mounting seat 8; and a load mounting seat 82 mounted on the second test station 3; and a rotating shaft 83 rotatably mounted on the load mounting seat 82 and connected to the drive shaft of the drive motor 81; and a turntable 84 sleeved on the rotating shaft 83, wherein the turntable 84 is provided with a groove 841 for mounting the load 10 to be cut. The third drive motor 81 drives the rotating shaft 83 to drive the turntable 84 to realize the rotation of the load 10, which can increase the utilization rate of the load 10 and save the testing cost.

[0052] It should be noted that the various embodiments in this specification are described in a progressive manner. References to the same or similar parts between the various embodiments are sufficient. Each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the figures. Furthermore, for the sake of brevity, detailed descriptions of known methods and techniques are omitted here.

[0053] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art without departing from the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims

1. A test tool for testing the service life of an ultrasonic scalpel head, characterized in that: include Test stand (1); A first testing station (2) is provided on the testing support (1) and is used to test the resonance performance of the ultrasonic scalpel head; A second testing station (3), provided on the testing support (1), is used to test the cutting performance of the ultrasonic scalpel head; a power unit, mounted on the test bracket (1), for driving the ultrasonic scalpel head to reciprocate between the first test station (2) and the second test station (3), and for driving the ultrasonic scalpel head to approach or move away from the first test station (2) or the second test station (3); A clamping assembly (6), mounted on the power unit, for clamping the ultrasonic scalpel head; A trigger drive assembly (7) is mounted on the clamping assembly (6) and is used to drive the trigger on the ultrasonic scalpel head to control the opening and closing of the clamp on the ultrasonic scalpel head.

2. The test fixture according to claim 1, characterized in that: The power unit includes a first driving assembly (4), mounted on the test bracket (1), and configured to drive the ultrasonic scalpel head to reciprocate between the first test station (2) and the second test station (3); a second driving assembly (5), mounted on the first driving assembly (4), and configured to drive the ultrasonic scalpel head to move closer to or further away from the first test station (2) or the second test station (3); Wherein, the clamping assembly (6) is installed on the second driving assembly (5).

3. The test fixture according to claim 2, characterized in that: The first drive assembly (4) comprises A first slide (41) is mounted on the test bracket (1); A first sliding block (42) is slidably mounted on the first sliding platform (41); A first screw rod (43) is rotatably mounted on the first slide (41) and is threadedly connected to the first slider (42); A first driving motor (44) is mounted on the first slide (41) and is drivingly connected to the first screw rod (43).

4. The test fixture according to claim 3, characterized in that: The second drive assembly (5) comprises A second slide (51) is mounted on the first slide block (42); A second sliding block (52) is slidably mounted on the second sliding platform (51); A second screw rod (53) is rotatably mounted on the second slide (51) and is threadedly connected to the second slider (52); The second driving motor (54) is mounted on the second slide (51) and is drivingly connected to the second screw rod (53).

5. The test fixture according to claim 4, characterized in that: It also includes a sensor assembly arranged on the test stand (1), the sensor assembly including a first position sensor (45), disposed on the first slide (41) and close to one end of the first drive motor (44), for detecting whether the first slide (42) has moved into position; a second position sensor (46), disposed on the first slide (41) and at one end away from the first drive motor (44), for detecting whether the first slide (42) has moved into position; a third position sensor (55), disposed on the second slide (51) and close to one end of the second drive motor (54), for detecting whether the second slide block (52) has moved into position; a fourth position sensor (57), disposed on the second slide (51) and at one end away from the second drive motor (54), for detecting whether the second slide (52) has moved into position; A fifth position sensor (56) is provided on the second slide (51) and is located between the third position sensor (55) and the fourth position sensor (57), and is used to detect whether the second slide block (52) has moved into position.

6. The test fixture according to claim 4, characterized in that: The clamping assembly (6) comprises A mounting plate (61) is mounted on the second slider (52); and a quick clamp (63) is mounted on the mounting plate (61) and is used for quickly clamping the ultrasonic scalpel head.

7. The test fixture according to claim 6, characterized in that: The clamping assembly (6) further comprises a fixing block (62) arranged on the mounting plate (61) and used for placing the ultrasonic scalpel head, the fixing block (62) being provided with an arcuate groove (621) for placing the ultrasonic scalpel head, the fixing block (62) being mounted on the quick clamp (63), and the mounting plate (61) comprising a supporting portion (611) for supporting the blade rod on the ultrasonic scalpel head and a mounting portion (612) on which the trigger drive assembly (7) is mounted.

8. The test fixture according to claim 6, characterized in that: The trigger drive assembly (7) comprises A telescopic cylinder (71) is mounted on the mounting plate (61); A push rod (72) connected to the driving end of the telescopic cylinder (71); A push block (73) is connected to an end of the push rod (72) away from the telescopic cylinder (71).

9. The test fixture according to claim 1, characterized in that: The second test station (3) is provided with a load simulation unit for simulating the load (10) clamped by the clamp on the ultrasonic scalpel head after closing.

10. The test fixture according to claim 9, characterized in that: The load simulation unit includes: A motor mounting seat (8) is mounted on the second test station (3); a third drive motor (81), mounted on the motor mounting base (8); A load mounting seat (82) is mounted on the second test station (3); A rotating shaft (83) is rotatably mounted on the load mounting seat (82) and connected to the driving shaft of the driving motor (81); The rotating disk (84) is sleeved on the rotating shaft (83) and is equipped with the load (10).

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