Handle rotation parameter and windowing displacement testing device and method

Abstract

The invention relates to the technical field of equipment structure testing, in particular to a handle rotation parameter and windowing displacement testing device and method.The device comprises a testing table, an inner needle rotary cutting frequency testing assembly and an inner needle parameter testing carrier are arranged on the testing table, and the inner needle parameter testing carrier is used for clamping a to-be-tested handle; the inner needle rotary cutting frequency testing assembly comprises an angle sensor, a first gear and a second gear, a first shaft is arranged in a testing hole of the angle sensor, and the first gear is arranged on the first shaft; during testing, the second gear is installed on an inner needle of the to-be-tested handle, and when the to-be-tested handle is clamped on the inner needle parameter testing carrier, the first gear is engaged with the second gear. According to the invention, rapid connection can be realized, manual calculation is not needed, the test complexity is reduced, and the test precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment structure testing, and in particular to a device and method for testing handle rotation parameters and window opening displacement. Background Art

[0002] Biopsy and excision devices are commonly used for minimally invasive biopsies of lesions and the removal of benign tumors. The device used to remove lesions consists of a handle containing an inner and outer needle. The frequency of excision with the inner needle, the rotation angle of the outer needle, and the size of the inner needle window all have a direct impact on the final excision effect. Therefore, it is necessary to test the frequency of excision with the inner needle, the rotation angle of the outer needle, and the size of the inner needle window to facilitate device improvement and optimization.

[0003] Existing handle testing equipment requires connecting the needle to a sensor with a coupling when testing the outer needle rotation angle and inner needle peeling frequency. The sensor output signal must be connected to an oscilloscope. During testing, the sensor and needle must be kept coaxial, and the oscilloscope is used to read the measurement curve to calculate the rotation angle and rotation time. On the one hand, the handle is difficult to fix, making it difficult to keep the sensor and needle coaxial. On the other hand, using an oscilloscope for measurement is cumbersome, requiring high staff involvement, and requiring excessive manual intervention. Furthermore, the angle and rotation time must be calculated based on the oscilloscope readings, which is prone to errors and time-consuming.

[0004] Furthermore, the needle opening in the handle needs to be measured with a caliper, which is subject to manual error. Furthermore, the inner needle has rounded corners, so even a slight tightening of the caliper can cause the needle to move, resulting in measurement error.

[0005] Therefore, with the increasing production volume, it is no longer possible to meet the existing testing requirements. Summary of the Invention

[0006] In order to solve the above technical problems existing in the prior art, the present invention provides a device and method for testing handle rotation parameters and window opening displacement.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] In the first aspect, the present invention provides a handle rotation parameter and window displacement testing device, including a test bench, on which an inner needle peeling frequency test component and an inner needle parameter test carrier are arranged, and the inner needle parameter test carrier is used to clamp the handle to be tested; the inner needle peeling frequency test component includes an angle sensor, a first gear and a second gear, a first shaft is arranged in the test hole of the angle sensor, and the first gear is arranged on the first shaft; during testing, the second gear is installed on the inner needle of the handle to be tested, and when the handle to be tested is clamped on the inner needle parameter test carrier, the first gear engages with the second gear.

[0009] Further, a displacement sensor is also arranged on the test bench, and the displacement sensor is used to measure the axial displacement of the second gear.

[0010] Furthermore, the displacement sensor is a laser displacement sensor.

[0011] Further, the inner needle parameter test carrier includes a handle carrier and a pressing component. A groove is arranged above the handle carrier, and the handle to be tested is placed in the groove. The pressing component is used to press the handle to be tested.

[0012] Further, an outer needle rotation angle test component and an outer needle parameter test carrier are also arranged on the test bench. The outer needle rotation angle test component includes an angle sensor. A positioning pin is arranged in the test hole of the angle sensor, a material fixer is arranged on the positioning pin, and a central hole is arranged in the material fixer. During the test, the outer needle of the handle to be tested is inserted into the central hole.

[0013] Furthermore, the material fixer is made of a flexible material, specifically polyurethane.

[0014] Furthermore, the outer needle parameter test carrier includes a handle carrier and a pressing component. A groove is arranged above the handle carrier, and the handle to be tested is placed in the groove. The pressing component is used to press the handle to be tested.

[0015] In a second aspect, the present invention provides a method for testing the rotation parameters of a handle, which is used to test the cutting frequency of the inner needle of the handle, and includes:

[0016] A1. Install the second gear on the inner needle of the handle to be tested, and then fix the handle to be tested on the inner needle parameter test carrier;

[0017] A2. Connect the above-mentioned handle rotation parameter and window opening displacement test device to the processing center, and connect the product host to the handle to be tested;

[0018] A3. Conduct a test to obtain the angle data measured by the angle sensor of the inner needle cutting frequency test component and the corresponding timestamps. According to the angle data, calculate the number of inner needle cuts; according to the timestamps, calculate the inner needle cutting time;

[0019] A4. Calculate the inner needle cutting frequency according to the number of inner needle cuts and the inner needle cutting time.

[0020] Further, in step A3, according to the angle data, the method for calculating the number of inner needle cuts is as follows:

[0021] Set the initial value of A to zero and the initial value of B to zero; record the angle data according to the time sequence. If the difference between the current angle data and the previous angle data is greater than 1, increment the value of A by 1; if the difference between the current angle data and the previous angle data is less than 1, increment the value of B by 1;

[0022] The number of inner needle cutting rotations is:

[0023]

[0024] C represents the number of inner needle cutting rotations.

[0025] Further, in step A3, according to the timestamp, calculate the inner needle cutting time. The specific method is as follows:

[0026] Record the angle data according to the time sequence, and subtract the time corresponding to the first angle data from the time corresponding to the last angle data to obtain the inner needle cutting time.

[0027] Further, according to the number of inner needle cutting rotations and the inner needle cutting time, calculate the inner needle cutting frequency. The specific method is: inner needle cutting frequency = number of inner needle cutting rotations / inner needle cutting time.

[0028] Further, after calculating the number of inner needle cutting rotations in step A3, it also includes judging whether the number requirement is met according to the number of inner needle cutting rotations. Specifically:

[0029] If the number of inner needle cutting rotations is greater than 1, continue to calculate the inner needle cutting time;

[0030] If the number of inner needle cutting rotations is less than or equal to 1, prompt that the number is insufficient and re-measurement is required.

[0031] In a third aspect, the present invention provides a method for testing the rotation parameters of a handle, which is used to test the window opening length of the handle and includes:

[0032] B1. Install the second gear on the inner needle of the handle to be tested, and then fix the handle to be tested on the inner needle parameter test carrier;

[0033] B2. Connect the above-mentioned handle rotation parameter and window opening displacement test device to the processing center, and connect the product host to the handle to be tested;

[0034] [[ID=,39]]B3. Adjust the handle so that the tip of the inner needle of the handle coincides with the outer edge of the window;

[0035] B4. Conduct a test, and use the displacement sensor to obtain the moving distance of the second gear, which is the window opening length of the handle.

[0036] In a fourth aspect, the present invention provides a method for testing the rotation parameters of a handle, which is used to test the rotation angle and rotation time of the outer needle of the handle and includes:

[0037] C1. Fix the handle to be tested on the outer needle parameter test carrier, and insert the outer needle of the handle into the central hole of the material holder and press against the positioning pin.

[0038] C2. Connect the above-mentioned handle rotation parameter and window opening displacement test device to the processing center, and connect the product host to the handle to be tested.

[0039] C3. Obtain the initial angle value and the corresponding timestamp, denoted as the initial angle value A1 and the initial time value T1.

[0040] C4. Conduct the test, obtain the angle data and the corresponding timestamp, denoted as the angle value A2 and the time value T2.

[0041] C5. Calculate the rotation angle of the outer needle and the rotation time of the outer needle.

[0042] Further, the specific method for obtaining the initial angle value in step C3 is: obtain the last angle data among all angle data where the difference between the current angle value and the angle value at the previous moment is less than 0.1, denoted as A1.

[0043] Further, the specific method for obtaining the angle value A2 is: during the test, record the angle data in chronological order. When the difference between the current angle value and the angle value at the previous moment is greater than 1 for the first time, obtain all the angles D after this current angle value; among the angle data D, obtain the angle data where the difference between the current angle data and the angle data at the previous moment is less than 0.1 for the first time in chronological order, denoted as the angle value A2.

[0044] Further, in step C5, calculating the rotation angle of the outer needle and the rotation time of the outer needle specifically includes:

[0045] Calculate the absolute value of the difference between A2 and A1.

[0046] If |A2 - A1| ≤ 0.1, then retest is required.

[0047] If |A2 - A1| > 0.1, then the rotation angle of the outer needle is |A2 - A1|, and the rotation time of the outer needle is T2 - T1.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] A testing device and method for handle rotation parameters and windowing displacement provided by the present invention set a test bench, a carrier for fixing the handle on the test bench, a second gear on the inner needle of the handle, an angle sensor on one side of the handle, a first gear on the angle sensor, and the first gear meshes with the second gear. Thus, when the inner needle rotates, it drives the second gear to rotate, and the second gear drives the first gear to rotate. The rotation condition of the inner needle can be measured by the angle sensor, and then the rotation frequency of the inner needle can be calculated. The present invention can not only achieve quick connection, but also does not require manual calculation. It can automatically obtain the rotation frequency of the inner needle and the corresponding rotation time, reduce the test complexity, and improve the test accuracy.

[0050] In addition, the present invention also sets a displacement sensor on one side of the inner needle. By measuring the moving distance of the second gear, the windowing length of the handle is obtained, avoiding the error caused by manual measurement and improving the test accuracy.

[0051] The present invention also sets another angle sensor, with a material fixator on the angle sensor. The outer needle is inserted into the material fixator, and the rotation of the outer needle can drive the material fixator to rotate. Thus, the rotation angle of the outer needle can be measured by the angle sensor, and at the same time, the rotation time of the outer needle can also be obtained, directly reading the measurement result and facilitating the operation of the operator. Description of the Drawings

[0052] Figure 1 It is a schematic structural diagram of the testing device for handle rotation parameters and windowing displacement of the present invention.

[0053] Figure 2 It is a flowchart of the method for testing handle rotation parameters in the second embodiment of the present invention.

[0054] Figure 3 It is a flowchart of the method for testing handle rotation parameters in the third embodiment of the present invention.

[0055] Figure 4 It is a flowchart of the method for testing handle rotation parameters in the fourth embodiment of the present invention.

[0056] Reference Signs:

[0057] 1. Test bench, 2. Carrier for testing inner needle parameters, 3. Compression assembly, 4. Angle sensor, 5. First gear, 6. Second gear, 7. Displacement sensor, 8. Carrier for testing outer needle parameters, 9. Material fixator. Detailed Embodiments

[0058] The technical solutions of the present invention will be clearly described below in conjunction with the description of the drawings. Obviously, the described embodiments are not all the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] It should be noted that, unless otherwise specifically stated, the relative arrangements of components and steps and numerical expressions set forth in these embodiments should not be construed as limiting the scope of the present invention.

[0060] The following description of exemplary embodiments is merely illustrative and in no sense limits the present invention and its application or use. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail herein, but when applicable, these technologies, methods, and devices should be regarded as part of this specification.

[0061] Embodiment 1

[0062] This embodiment provides a device for testing handle rotation parameters and window opening displacement, as Figure 1 shown, which includes a test bench 1. An inner needle cutting frequency test component and an inner needle parameter test carrier 2 are arranged on the test bench 1. The inner needle parameter test carrier 2 is used to clamp the handle to be tested. The inner needle cutting frequency test component includes an angle sensor 4, a first gear 5, and a second gear 6. A first shaft is arranged in the test hole of the angle sensor 4, and the first gear 5 is arranged on the first shaft. During the test, the second gear 6 is installed on the inner needle of the handle to be tested. When the handle to be tested is clamped on the inner needle parameter test carrier 2, the first gear 5 meshes with the second gear 6.

[0063] The second gear 6 is fixedly connected to the inner needle. Therefore, when the inner needle rotates, the second gear 6 rotates synchronously with the inner needle. Since the first gear 5 meshes with the second gear 6, the rotation condition of the inner needle can be obtained by acquiring the rotation condition of the first gear 5. The rotation condition of the first gear 5 is directly measured by the angle sensor 4 without using an oscilloscope, and the operation is simple.

[0064] Among them, balls are also arranged on the second gear 6. Specifically, a plurality of holes are arranged radially along the connecting shaft of the second gear 6, preferably six holes. Two holes are arranged axially at intervals of 120°. Balls are arranged in the holes. The balls are embedded in the holes but can roll. When the inner needle is inserted into the central hole of the second gear 6, the inner needle contacts the balls, thereby changing the sliding friction between the inner needle and the second gear 6 to rolling friction and avoiding wear of the inner needle.

[0065] In addition, a displacement sensor 7 is further arranged on the test bench 1. The displacement sensor 7 is used to measure the axial displacement of the second gear 6. The displacement sensor 7 is a laser displacement sensor. The position of the displacement sensor 7 is set according to the moving distance of the second gear 6, and it is necessary to ensure that the distance between the displacement sensor 7 and the second gear 6 is within the measurement range.

[0066] The inner needle parameter test carrier 2 includes a handle carrier and a pressing component 3. A groove is provided above the handle carrier, and the handle to be tested is placed in the groove. The pressing component 3 is used to press the handle to be tested. The handle carrier is preferably made of aluminum and its surface is anodized, which has the characteristics of corrosion resistance and not easy to rust. The pressing component 3 can use the pressing structure in the prior art, and the specific structural principle will not be elaborated here.

[0067] An outer needle rotation angle test component and an outer needle parameter test carrier 8 are also provided on the test bench 1. The outer needle rotation angle test component includes an angle sensor 4. A positioning pin is arranged in the test hole of the angle sensor 4, and a material fixer 9 is arranged on the positioning pin. A central hole is arranged in the material fixer 9. During the test, the outer needle of the handle to be tested is inserted into the central hole.

[0068] The material fixer 9 is made of a flexible material, preferably polyurethane. The material fixer 9 made of flexible material can avoid the wear of the outer needle by the material fixer 9. The material fixer 9 and the outer needle are in interference fit, without other locking structures, which is convenient for disassembly, suitable for mass production, and improves the test efficiency.

[0069] The outer needle parameter test carrier 8 includes a handle carrier and a pressing component 3. A groove is provided above the handle carrier, and the handle to be tested is placed in the groove. The pressing component 3 is used to press the handle to be tested. The outer needle parameter test carrier 8 has the same structure as the inner needle parameter test carrier 2.

[0070] Embodiment 2

[0071] This embodiment provides a method for testing the rotation parameters of a handle, which is used to test the cutting frequency of the inner needle of the handle, as Figure 2 shown, including:

[0072] A1. Install the second gear 6 on the inner needle of the handle to be tested. The second gear 6 presses against the structural member on the handle, and the second gear 6 is fixed by a set screw, so that the second gear 6 is fixedly connected to the inner needle; then fix the handle to be tested on the inner needle parameter test carrier 2, and use the pressing component 3 to press the handle to be tested.

[0073] A2. Connect the above-mentioned handle rotation parameter and window opening displacement test device to the processing center, and connect the product host to the handle to be tested; among them, the processing center is a computer, and the test software is stored in the computer. Use the test software to read the test data of the angle sensor and the displacement sensor, and calculate the corresponding parameters.

[0074] A3. Conduct a test by starting the test software on the processing center and pressing the sampling button on the handle to be tested. After the handle rotation stops, obtain the angle data and the corresponding timestamps tested by the angle sensor 4 of the inner needle rotary cutting frequency test component. Calculate the number of inner needle rotary cuts based on the angle data, and calculate the inner needle rotary cutting time based on the timestamps.

[0075] Calculate the number of inner needle rotary cuts based on the angle data. The specific method is as follows:

[0076] Set the initial value of A to zero and the initial value of B to zero. Record the angle data in chronological order. If the difference between the current angle data and the previous angle data is greater than 1, add 1 to the value of A; if the difference between the current angle data and the previous angle data is less than 1, add 1 to the value of B.

[0077] The number of inner needle rotary cuts is:

[0078]

[0079] Let C represent the number of inner needle rotary cuts.

[0080] After calculating the number of inner needle rotary cuts, determine whether the number requirement is met based on the number of inner needle rotary cuts:

[0081] If the number of inner needle rotary cuts is greater than 1, continue to calculate the inner needle rotary cutting time.

[0082] If the number of inner needle rotary cuts is less than or equal to 1, pop up a window to prompt "The number is insufficient. Please measure again." and re-measurement is required.

[0083] Calculate the inner needle rotary cutting time based on the timestamps. The specific method is as follows:

[0084] Record the angle data in chronological order, and subtract the time corresponding to the first angle data from the time corresponding to the last angle data to obtain the inner needle rotary cutting time.

[0085] A4. Calculate the inner needle rotary cutting frequency based on the number of inner needle rotary cuts and the inner needle rotary cutting time. The specific method is: Inner needle rotary cutting frequency = Number of inner needle rotary cuts / Inner needle rotary cutting time.

[0086] Example 3

[0087] This example provides a method for testing the handle rotation parameters to test the window opening length of the handle, as Figure 3 shown, including:

[0088] B1. Install the second gear 6 on the inner needle of the handle to be tested. The second gear 6 presses against the structural part on the handle, and fix the second gear 6 with a set screw, then the second gear 6 is fixedly connected to the inner needle. After that, fix the handle to be tested on the inner needle parameter test carrier 2 and press the handle to be tested with the pressing component 3.

[0089] B2. Connect the above-mentioned handle rotation parameter and windowing displacement test device to the processing center, and connect the product host to the handle to be tested. Among them, the processing center is a computer, and the computer stores test software. Use the test software to read the test data of the angle sensor and the displacement sensor, and calculate the corresponding parameters.

[0090] B3. Adjust the handle so that the tip of the inner needle of the handle coincides with the outer edge of the window. Here, the outer edge of the window is the inner edge of the window close to the tip of the outer needle.

[0091] B4. Conduct a test, and use the displacement sensor 7 to obtain the moving distance of the second gear 6, which is the windowing length of the handle.

[0092] When the inner needle rotates and displaces, the second gear 6 moves synchronously with the inner needle. Therefore, the displacement of the second gear 6 measured is the displacement of the inner needle. Since the inner needle initially coincides with the outer edge of the window, the distance that the inner needle moves is related to the size of the window, that is, the length of the window.

[0093] Embodiment 4

[0094] This embodiment provides a method for testing the handle rotation parameters, which is used to test the rotation angle and rotation time of the outer needle of the handle. As Figure 4 shown, it includes:

[0095] C1. Fix the handle to be tested on the outer needle parameter test carrier 8, and insert the outer needle of the handle into the central hole of the material fixer 9 and press against the positioning pin.

[0096] C2. Connect the above-mentioned handle rotation parameter and windowing displacement test device to the processing center, and connect the product host to the handle to be tested. Among them, the processing center is a computer, and the computer stores test software. Use the test software to read the test data of the angle sensor and the displacement sensor, and calculate the corresponding parameters.

[0097] C3. Obtain the initial angle value and the corresponding timestamp, denoted as the initial angle value A1 and the initial time value T1.

[0098] The specific method for obtaining the initial angle value is: obtain the last angle data among all angle data whose difference between the current angle value and the angle value at the previous moment is less than 0.1, and denote it as A1.

[0099] C4. Conduct a test, obtain the angle data and the corresponding timestamp, denoted as the angle value A2 and the time value T2.

[0100] The specific method for obtaining the angle value A2 is as follows: during the test, record the angle data in chronological order. When the difference between the current angle value and the angle value at the previous moment is greater than 1 for the first time, obtain all the angles D after this current angle value. Among the angle data D, obtain the angle data whose difference between the current angle data and the angle data at the previous moment is less than 0.1 for the first time in chronological order, and record it as the angle value A2.

[0101] C5. Calculate the rotation angle and rotation time of the outer needle, specifically including:

[0102] Calculate the absolute value of the difference between A2 and A1.

[0103] If |A2 - A1| ≤ 0.1, then retest is required.

[0104] If |A2 - A1| > 0.1, then the rotation angle of the outer needle is |A2 - A1|, and the rotation time of the outer needle is T2 - T1.

[0105] The outer needle is fixedly connected to the material holder 9. When the outer needle rotates, the material holder 9 rotates synchronously. The rotation of the material holder 9 drives the positioning pin to rotate. Therefore, the data measured by the angle sensor 4 is the rotation data of the outer needle.

[0106] The above specific embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A handle rotation parameter and window opening displacement test device, characterized in that It includes a test bench, on which an inner needle cutting frequency test component and an inner needle parameter test carrier are arranged. The inner needle parameter test carrier is used to clamp the handle to be tested. The inner needle cutting frequency test component includes an angle sensor, a first gear and a second gear. A first shaft is arranged in the test hole of the angle sensor of the inner needle cutting frequency test component, and the first gear is arranged on the first shaft. During the test, the second gear is installed on the inner needle of the handle to be tested. When the handle to be tested is clamped on the inner needle parameter test carrier, the first gear meshes with the second gear.

2. The handle rotation parameter and window opening displacement testing device according to claim 1, characterized in that A displacement sensor is also arranged on the test bench, and the displacement sensor is used to measure the axial displacement of the second gear.

3. The handle rotation parameter and window opening displacement test device according to claim 1, characterized in that, An outer needle rotation angle test component and an outer needle parameter test carrier are also arranged on the test bench. The outer needle rotation angle test component includes an angle sensor. A positioning pin is arranged in the test hole of the angle sensor of the outer needle rotation angle test component, and a material holder is arranged on the positioning pin. A central hole is arranged in the material holder. During the test, the outer needle of the handle to be tested is inserted into the central hole.

4. The handle rotation parameter and window opening displacement test device according to claim 3, characterized in that The material holder is made of flexible material.

5. A method for testing the rotation parameters of a handle, which is used to test the inner needle cutting frequency of the handle, is characterized in that It includes: A1. Install the second gear on the inner needle of the handle to be tested, and then fix the handle to be tested on the inner needle parameter test carrier. A2. Connect the handle rotation parameter and window opening displacement test device according to any one of claims 1-4 to the processing center, and connect the product host to the handle to be tested. A3. Conduct the test, obtain the angle data measured by the angle sensor of the inner needle cutting frequency test component and the corresponding timestamps. According to the angle data, calculate the number of inner needle cutting times; according to the timestamps, calculate the inner needle cutting time. A4. Calculate the inner needle cutting frequency according to the number of inner needle cutting times and the inner needle cutting time.

6. The method for testing the handle rotation parameters according to claim 5, wherein In step A3, according to the angle data, calculate the number of inner needle cutting times. The specific method is: Set the initial value of A to zero and the initial value of B to zero; record the angle data in chronological order. If the difference between the current angle data and the previous angle data is greater than 1, add 1 to the value of A; if the difference between the current angle data and the previous angle data is less than 1, add 1 to the value of B. The number of inner needle cutting times is: C represents the number of inner needle cutting times.

7. A method for testing the rotation parameters of a handle, which is used to test the window opening length of the handle, is characterized in that It includes: B1. Install the second gear on the inner needle of the handle to be tested, and then fix the handle to be tested on the inner needle parameter test carrier. B2. Connect the handle rotation parameter and window opening displacement test device according to claim 2 to the processing center, and connect the product host to the handle to be tested. B3. Adjust the handle so that the tip of the inner needle of the handle coincides with the outer edge of the window. B4. Conduct the test, and use the displacement sensor to obtain the moving distance of the second gear, which is the window opening length of the handle.

8. A method for testing the rotation parameters of a handle, which is used to test the rotation angle and rotation time of the outer needle of the handle, is characterized in that, It includes: C1. Fix the handle to be tested on the outer needle parameter test carrier, and insert the outer needle of the handle into the central hole of the material holder and press against the positioning pin. C2. Connect the handle rotation parameter and window opening displacement test device according to claim 3 or 4 to the processing center, and connect the product host to the handle to be tested. C3. Obtain the initial angle value and the corresponding timestamp of the angle sensor of the outer needle rotation angle test component, denoted as the initial angle value A1 and the initial time value T1; C4. Conduct the test to obtain the angle data and the corresponding timestamp of the angle sensor of the outer needle rotation angle test component, denoted as the angle value A2 and the time value T2; C5. Calculate the outer needle rotation angle and the outer needle rotation time.

9. The method for testing the handle rotation parameters according to claim 8, characterized in that, The specific method for obtaining the initial angle value in step C3 is: Obtain the last angle data among all angle data where the difference between the current angle value and the angle value at the previous moment is less than 0.1, denoted as A1.

10. The method for testing the handle rotation parameters according to claim 8, wherein The specific method for obtaining the angle value A2 is: During the test, record the angle data in chronological order. When the difference between the current angle value and the angle value at the previous moment is greater than 1 for the first time, obtain all the angles D after this current angle value; among the angle data D, obtain the angle data where the difference between the current angle data and the angle data at the previous moment is less than 0.1 for the first time in chronological order, denoted as the angle value A2.

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