A flexible instrument torsional performance testing device

Abstract

The utility model belongs to the technical field of medical instrument evaluation, concretely relates to a flexible instrument torsional property testing arrangement, the utility model discloses flexible instrument torsional property testing arrangement, and first rotary flange is rotatable to set up above operating table through rotary drive module, and second rotary flann is coaxial with torsion sensor and is connected, and can be set up on operating table and slide left and right, and first rotary flange, second rotary flange are coaxial and are oppositely arranged, and the both ends of flexible instrument are clamped and fixed using folding clamp, and under the drive of rotary drive module, the folding of flexible instrument is realized, and the both ends of flexible instrument are clamped and fixed using torsion clamp, and under the drive of rotary drive module, the torsion of flexible instrument is realized, because folding clamp, torsion clamp are detachably set up on first rotary flange, second rotary flange, can replace folding clamp, torsion clamp according to the test need, and the test of flexible instrument torsional property is completed.

Description

Technical Field

[0001] This utility model belongs to the technical field of medical device evaluation, specifically relating to a flexible device torsional performance testing device. Background Technology

[0002] When flexible medical devices are applied to the human body, they twist and fold with the movement of the joints, which may lead to problems such as electrode breakage, short circuits, or leakage, thus posing safety hazards. Currently, there is no method to evaluate their torsional safety. Therefore, this application develops a device to verify the torsional performance of the flexible medical device in two aspects: 1) Under different forward and reverse torsional angles and test counts, the device is studied to determine whether the sample can still fit smoothly against the skin after unfolding, whether the conductive adhesive layer is intact, and whether its function is normal; 2) After a certain number of forward and reverse folding tests, the device is studied to determine whether the sample can still fit smoothly against the skin after unfolding, whether the conductive adhesive layer is intact, and whether its function is normal. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a torsional performance testing device for flexible instruments. A first rotating flange is rotatably mounted above the operating table via a rotation drive module. A second rotating flange is coaxially connected to a torque sensor. Since both the folding clamp and the torsion clamp are detachably mounted on the first and second rotating flanges, the folding clamp clamps both ends of the flexible instrument, and under the drive of the rotation drive module, the flexible instrument is folded. Similarly, the torsion clamp clamps both ends of the flexible instrument, and under the drive of the rotation drive module, the flexible instrument is torsioned, thus satisfying the requirement for testing the torsional performance of the flexible instrument.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: a flexible instrument torsional performance testing device, including a shell, a first rotating flange, a second rotating flange, a torque sensor, a rotation drive module, a folding clamp, a torsion clamp and a control module; An operating table is provided at the upper end of the housing; The first rotary flange is rotatably mounted above the operating table via a rotary drive module; The second rotary flange is coaxially connected to the torque sensor and is mounted on the operating table that can slide left and right. The first rotary flange and the second rotary flange are arranged coaxially opposite to each other; The folding clamp and the torsion clamp are detachably mounted on the first rotary flange and the second rotary flange; The folding clamp is used to clamp and fix the two ends of the flexible device, and under the drive of the rotation drive module, the flexible device is folded. The torsion clamp is used to clamp and fix the two ends of the flexible device, and under the drive of the rotation drive module, the flexible device is torsion is realized. The control module is connected to the torque sensor and the rotation drive module, respectively, and is used to set the folding parameters and torsion parameters. The torque sensor can collect the torque borne by the flexible instrument in real time, and can be used to measure the maximum torque borne and prevent the set test torque threshold from being exceeded.

[0005] In a preferred embodiment of this invention, the folding clamp includes a first folding plate, a second folding plate, and a fixing pressure plate; The first folding plate is horizontally mounted on the first rotating flange; The second folding plate is horizontally mounted on the second rotating flange; The first folding plate and the second folding plate are arranged side by side, and their upper surfaces are flush with each other; The first folding plate and the second folding plate are located on both sides of the axis of the first rotating flange and the second rotating flange, respectively; The fixed pressure plates are detachably disposed on the upper surfaces of the first folding plate and the second folding plate, respectively. The flexible device is located between the fixed pressure plate and the first folding plate or between the fixed pressure plate and the second folding plate. The fixed pressure plates clamp and fix both sides of the flexible device on the first folding plate and the second folding plate, respectively. By folding the first folding plate and the second folding plate together, the folding operation of the flexible device is achieved.

[0006] In a preferred embodiment of this utility model, the first folding plate and the second folding plate are provided with multiple rows of fixing bolt holes; The fixed pressure plate has bolt through holes at both ends, and the fixed pressure plate is connected to the fixing bolt holes by bolts. By using bolts passing through the bolt through holes at both ends of the fixed pressure plate and connecting them to the fixing bolt holes on the first or second folding plate, the flexible instrument can be clamped and fixed, which is convenient to operate.

[0007] In a preferred embodiment of this invention, the torsion clamp includes a first clamp and a second clamp; The first clamp is detachably mounted on the first rotating flange; The second clamp is detachably mounted on the second rotating flange. The first and second clamps are used to clamp and fix both ends of the flexible instrument, respectively. By rotating the first and second clamps relative to each other, a torsional operation on the flexible instrument can be achieved.

[0008] In a preferred embodiment of this utility model, the first clamp and the second clamp include a vertical support plate, a horizontal support plate, a lower clamping plate, an upper clamping plate, a guide rod, and a clamping screw; The horizontal support plate and the lower clamping plate are fixedly installed on the vertical support plate at intervals from top to bottom; The guide rod is fixedly installed between the horizontal support plate and the lower clamping plate; The upper clamping plate can be disposed between the horizontal support plate and the lower clamping plate and can be slidably disposed on the guide rod; The lower end of the clamping screw is rotatably mounted on the upper end of the upper clamping plate; The clamping screw passes through the horizontal support plate and is threadedly connected to it. By rotating the clamping screw, the upper clamping plate can be driven to slide up and down along the guide rod. The lower and upper clamping plates work together to clamp the flexible instrument. Due to its large clamping width, it is suitable for the inspection of flexible instruments of various sizes.

[0009] In a preferred embodiment, the present invention further includes a sliding bracket, a sliding base plate, and a slide rail; The slide rail is mounted on the operating table; The second rotary flange is mounted on the sliding bracket via a torque sensor; The sliding bracket is vertically mounted on the sliding base plate, which is slidably mounted on the slide rail. Positioning bolt holes are provided through the sliding base plate. The sliding base plate can slide along the slide rail and can be fixed to the operating table via the positioning bolt holes, thereby adjusting the distance between the first and second rotating flanges to accommodate the testing of flexible instruments of different sizes.

[0010] In a preferred embodiment of this invention, the rotary drive module includes a rotary support, a rotary shaft, and a drive motor. The rotating bracket is fixedly mounted on the operating table, and the rotating shaft is rotatably mounted on the rotating bracket via bearings; The first rotary flange is disposed at the end of the rotary shaft; The drive motor is fixedly mounted on the housing and is used to drive the rotating shaft to rotate. The drive motor drives the rotating shaft to rotate, which in turn drives the first rotating flange to rotate, completing the folding and twisting actions.

[0011] In a preferred embodiment of this invention, the rotary drive module further includes a transmission belt, a passive tooth, and an active tooth; The drive motor is fixedly installed inside the housing; The passive gear and the active gear are respectively mounted on the rotating shaft and the motor shaft of the drive motor; The transmission belt is fitted over the outside of the driven and driving teeth. The drive motor uses the transmission belt to rotate the shaft, enabling remote control.

[0012] In a preferred embodiment of this invention, a display panel and an emergency stop button are provided on the front side of the housing; The display panel is used to display the test values ​​of the torque sensor and the number of folds of the folding fixture, so as to facilitate real-time viewing of the test results. In case of emergency, the emergency stop button can be pressed to stop the rotation drive module.

[0013] Preferably, the present invention includes detachable shock-absorbing feet at the four corners of the lower part of the housing. These shock-absorbing feet at the lower part of the housing help maintain the stability of the operating platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are: In this utility model's flexible instrument torsional performance testing device, a first rotating flange is rotatably mounted above the operating table via a rotation drive module, and a second rotating flange is coaxially connected to a torque sensor and slidably mounted on the operating table. The first and second rotating flanges are coaxially opposite each other. A folding clamp is used to hold and fix both ends of the flexible instrument, achieving folding under the drive of the rotation drive module. Similarly, a torsion clamp is used to hold and fix both ends of the flexible instrument, achieving torsion under the drive of the rotation drive module. Since both the folding and torsion clamps are detachably mounted on the first and second rotating flanges, they can be replaced as needed to complete the torsional performance test of the flexible instrument.

[0015] By connecting the control module to the torque sensor and the rotation drive module respectively, the data tested by the torque sensor can be collected in real time and the rotation drive module can be controlled to limit the folding angle, the number of folds, the torsion angle, the threshold of the torsion force, the torsion direction and the number of torsions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the flexible instrument torsional performance testing device of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the flexible instrument torsional performance testing device of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the rotary drive module and the torsion clamp described in this utility model; In the diagram, 1 is the housing, 2 is the first rotating flange, 3 is the second rotating flange, and 4 is the torque sensor. 100 operating consoles; 5 First folding plate, 6 Second folding plate, 200 fixing bolt holes; 7 First clamp, 8 Second clamp, 9 Vertical support plate, 10 Horizontal support plate, 11 Lower clamping plate, 12 Upper clamping plate, 13 Guide rod, 14 Clamping screw; 15 Sliding bracket, 16 Sliding base plate, 161 Positioning bolt hole, 17 Slide rail; 18 Rotary support, 19 Rotary shaft, 20 Drive motor, 21 Transmission belt, 22 Passive gear, 23 Active gear; 24 Display panel, 25 Emergency stop button, 26 Shock-absorbing feet. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0018] like Figures 1-3 As shown, a flexible instrument torsion performance testing device includes a housing 1, a first rotating flange 2, a second rotating flange 3, a torque sensor 4, a rotation drive module, a folding fixture, a torsion fixture, and a control module.

[0019] An operating table 100 is provided on the upper end of the housing 1.

[0020] The first rotating flange 2 is rotatably mounted above the operating table 100 via a rotating drive module.

[0021] The second rotating flange 3 is coaxially connected to the torque sensor 4 and is mounted on the operating table 100, which can slide left and right.

[0022] The first rotary flange 2 and the second rotary flange 3 are arranged coaxially opposite each other.

[0023] The folding clamp and the torsion clamp are detachably mounted on the first rotating flange 2 and the second rotating flange 3.

[0024] The folding clamp is used to clamp and fix both ends of the flexible device, and under the drive of the rotation drive module, the flexible device is folded.

[0025] The torsion clamp is used to clamp and fix both ends of the flexible device, and under the drive of the rotation drive module, the flexible device is torsion is realized.

[0026] The control module is connected to the torque sensor 4 and the rotation drive module respectively, and is used to set the folding parameters and torsion parameters.

[0027] The folding clamp includes a first folding plate 5, a second folding plate 6, and a fixed pressure plate.

[0028] The first folding plate 5 is horizontally positioned on the first rotating flange 2.

[0029] The second folding plate 6 is horizontally positioned on the second rotating flange 3.

[0030] The first folding plate 5 and the second folding plate 6 are arranged side by side, and their upper surfaces are flush with each other.

[0031] The first folding plate 5 and the second folding plate 6 are located on both sides of the axis of the first rotating flange 2 and the second rotating flange 3, respectively.

[0032] The fixing plates are detachably mounted on the upper surfaces of the first folding plate 5 and the second folding plate 6, respectively.

[0033] The first folding plate 5 and the second folding plate 6 are provided with multiple rows of fixing bolt holes 200.

[0034] The fixed pressure plate has bolt through holes at both ends, and the fixed pressure plate is connected to the fixed bolt holes 200 by bolts. The fixed pressure plate is not shown in the figure. Specifically, the fixed pressure plate adopts a flat plate structure, which can be a rectangular plate.

[0035] The torsion clamp includes a first clamp 7 and a second clamp 8.

[0036] The first clamp 7 is detachably mounted on the first rotating flange 2.

[0037] The second clamp 8 is detachably mounted on the second rotating flange 3.

[0038] The first clamp 7 and the second clamp 8 include a vertical support plate 9, a horizontal support plate 10, a lower clamping plate 11, an upper clamping plate 12, a guide rod 13, and a clamping screw 14.

[0039] The horizontal support plate 10 and the lower clamping plate 11 are fixedly arranged on the vertical support plate 9 at intervals from top to bottom.

[0040] The guide rod 13 is fixedly installed between the horizontal support plate 10 and the lower clamping plate 11.

[0041] The upper clamping plate 12 can be disposed between the horizontal support plate 10 and the lower clamping plate 11 and can be slidably disposed on the guide rod 13.

[0042] The lower end of the clamping screw 14 is rotatably mounted on the upper end of the upper clamping plate 12.

[0043] The upper end of the clamping screw 14 passes through the horizontal support plate 10 and is threadedly connected to the horizontal support plate 10. A rotating handle is provided at the upper end of the clamping screw 14.

[0044] The flexible instrument torsional performance testing device also includes a sliding bracket 15, a sliding base plate 16, and a slide rail 17.

[0045] The slide rail 17 is mounted on the control panel 100.

[0046] The second rotating flange 3 is mounted on the sliding bracket 15 via a torque sensor 4.

[0047] The sliding bracket 15 is vertically mounted on the sliding base plate 16, which is slidably mounted on the slide rail 17. A positioning bolt hole 161 is provided through the sliding base plate 16.

[0048] The rotation drive module includes a rotation bracket 18, a rotation shaft 19, and a drive motor 20. The drive motor 20 is a geared motor.

[0049] The rotating bracket 18 is fixedly mounted on the operating table 100, and the rotating shaft 19 is rotatably mounted on the rotating bracket 18 via bearings.

[0050] The first rotating flange 2 is located at the end of the rotating shaft 19.

[0051] The drive motor 20 is fixedly mounted on the housing 1 and is used to drive the rotating shaft 19 to rotate.

[0052] The rotary drive module also includes a transmission belt 21, a passive tooth 22, and an active tooth 23.

[0053] The drive motor 20 is fixedly installed inside the housing 1.

[0054] The passive gear 22 and the active gear 23 are respectively mounted on the rotating shaft 19 and the motor shaft of the drive motor 20.

[0055] The transmission belt 21 is sleeved on the outside of the passive tooth 22 and the active tooth 23.

[0056] The front side of the housing 1 is provided with a display panel 24 and an emergency stop button 25.

[0057] The display panel 24 is used to display the test values ​​of the torque sensor 4 and the number of folds of the folding fixture. The main control board, as a control module, is fixed inside the housing 1 and its function is to control the operation of various components. The front end of the housing 1 is the control panel, which is equipped with a power switch and an emergency stop switch.

[0058] The housing 1 is provided with detachable shock-absorbing feet 26 at the four corners below. The shock-absorbing feet 26 are threadedly connected to the housing 1.

[0059] During the folding test, the flexible instrument sample is first placed on the folding fixture and clamped and fixed using a fixing plate. The sample is then adjusted to a horizontal position using the "forward rotation" and "reverse rotation" functions in the software. The starting point, forward rotation angle, reverse rotation angle, and number of tests can be set in the software to achieve a fixed folding performance test. Existing software modules can be used, and since they are not within the scope of this application, they will not be described in detail here.

[0060] During the torsion test, first replace the fixture with a torsion fixture, place the flexible instrument sample on the torsion fixture, and use the upper clamping plate 12 to clamp and fix the sample; adjust to a horizontal state by using "forward rotation" and "reverse rotation" on the software, set the starting point through the software, and set the forward rotation angle, reverse rotation angle, and number of tests to achieve the torsion performance test.

[0061] Folding test: Control the drive motor 20 to rotate at a set forward rotation angle. The flexible instrument sample is folded. When the set forward rotation angle is reached, pause for a set time, and then rotate at a set reverse rotation angle. When the set reverse rotation angle (i.e., the starting point) is reached, the software records the number of tests as 1. The drive motor 20 repeats this process until the set number of tests is reached.

[0062] Torsion test: Control the drive motor 20 to rotate at a set forward rotation angle. The flexible instrument sample is twisted. When the set forward rotation angle is reached, pause for a set time, and then rotate at a set reverse rotation angle. When the set reverse rotation angle (i.e., the starting point) is reached, the software records the number of tests as 1. The drive motor 20 repeats this process until the set number of tests is reached.

Claims

1. A device for testing the torsional performance of flexible instruments, characterized in that: It includes a housing (1), a first rotating flange (2), a second rotating flange (3), a torque sensor (4), a rotation drive module, a folding clamp, a torsion clamp, and a control module; An operating table (100) is provided at the upper end of the housing (1). The first rotary flange (2) is rotatably mounted above the operating table (100) via a rotary drive module; The second rotating flange (3) is coaxially connected to the torque sensor (4) and can be slidably mounted on the operating table (100); The first rotary flange (2) and the second rotary flange (3) are arranged coaxially opposite each other; The folding clamp and the torsion clamp are detachably mounted on the first rotary flange (2) and the second rotary flange (3); The folding clamp is used to clamp and fix the two ends of the flexible device, and under the drive of the rotation drive module, the flexible device is folded. The torsion clamp is used to clamp and fix the two ends of the flexible device, and under the drive of the rotation drive module, the flexible device is torsion is realized. The control module is connected to the torque sensor (4) and the rotation drive module respectively, and is used to set the folding parameters and torsion parameters.

2. The flexible instrument torsional performance testing device according to claim 1, characterized in that: The folding clamp includes a first folding plate (5), a second folding plate (6), and a fixing pressure plate; The first folding plate (5) is horizontally positioned on the first rotating flange (2); The second folding plate (6) is horizontally positioned on the second rotating flange (3); The first folding plate (5) and the second folding plate (6) are arranged side by side, and their upper surfaces are flush with each other; The first folding plate (5) and the second folding plate (6) are located on both sides of the axis of the first rotating flange (2) and the second rotating flange (3), respectively; The fixed pressure plates are detachably disposed on the upper surfaces of the first folding plate (5) and the second folding plate (6).

3. The flexible instrument torsional performance testing device according to claim 2, characterized in that: The first folding plate (5) and the second folding plate (6) are provided with multiple rows of fixing bolt holes (200); The fixed pressure plate is provided with bolt through holes at both ends, and the fixed pressure plate is connected to the fixed bolt holes (200) by bolts.

4. The flexible instrument torsional performance testing device according to claim 1, characterized in that: The torsion clamp includes a first clamp (7) and a second clamp (8); The first clamp (7) is detachably mounted on the first rotating flange (2); The second clamp (8) is detachably mounted on the second rotating flange (3).

5. The flexible instrument torsional performance testing device according to claim 4, characterized in that: The first clamp (7) and the second clamp (8) include a vertical support plate (9), a horizontal support plate (10), a lower clamping plate (11), an upper clamping plate (12), a guide rod (13), and a clamping screw (14). The horizontal support plate (10) and the lower clamping plate (11) are fixedly installed on the vertical support plate (9) at intervals from top to bottom; The guide rod (13) is fixedly installed between the horizontal support plate (10) and the lower clamping plate (11); The upper clamping plate (12) can be disposed between the horizontal support plate (10) and the lower clamping plate (11) and can be slidably disposed on the guide rod (13); The lower end of the clamping screw (14) is rotatably disposed on the upper end of the upper clamping plate (12); The clamping screw (14) passes through the horizontal support plate (10) and is threadedly connected to the horizontal support plate (10).

6. The flexible instrument torsional performance testing device according to claim 1, characterized in that: It also includes a sliding bracket (15), a sliding base plate (16), and a slide rail (17). The slide rail (17) is mounted on the operating table (100); The second rotating flange (3) is mounted on the sliding bracket (15) via a torque sensor (4); The sliding bracket (15) is vertically mounted on the sliding base plate (16), which is slidably mounted on the slide rail (17). The sliding base plate (16) has a through-hole (161) for positioning bolts.

7. The flexible instrument torsional performance testing device according to claim 1, characterized in that: The rotation drive module includes a rotation bracket (18), a rotation shaft (19), and a drive motor (20). The rotating bracket (18) is fixedly mounted on the operating table (100), and the rotating shaft (19) is rotatably mounted on the rotating bracket (18) via a bearing; The first rotating flange (2) is disposed at the end of the rotating shaft (19); The drive motor (20) is fixedly mounted on the housing (1) and is used to drive the rotating shaft (19) to rotate.

8. The flexible instrument torsional performance testing device according to claim 7, characterized in that: The rotary drive module also includes a transmission belt (21), a passive tooth (22), and an active tooth (23). The drive motor (20) is fixedly installed inside the housing (1); The passive gear (22) and the active gear (23) are respectively mounted on the rotating shaft (19) and the motor shaft of the drive motor (20); The transmission belt (21) is sleeved on the outside of the passive tooth (22) and the active tooth (23).

9. The flexible instrument torsional performance testing device according to claim 1, characterized in that: The front side of the housing (1) is provided with a display panel (24) and an emergency stop button (25). The display panel (24) is used to display the test value of the torque sensor (4) and the number of times the folding fixture is folded.

10. The flexible instrument torsional performance testing device according to claim 1, characterized in that: The housing (1) is provided with detachable shock-absorbing feet (26) at the four corners below.

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