Service life testing device of surgical cutting instrument

Abstract

The invention provides a service life testing device for a surgical cutting instrument. The service life testing device comprises a clamping mechanism, a testing mechanism and a testing mechanism, wherein the clamping mechanism is used for fixing a working object of the surgical cutting instrument; the clamping mechanism is used for fixing the surgical cutting instrument and can move relative to the clamping mechanism; the power mechanism is used for outputting power; the moving mechanism is connected with the power mechanism, the moving mechanism receives the power and moves along a preset moving track under the driving of the power, and the clamping mechanism is fixedly connected to the moving mechanism so that the operation cutting instrument fixed to the clamping mechanism can cut a working object according to the preset moving track. According to the testing device, the magnitude of force and the like in the whole testing process are conducted at a constant speed according to the preset track, the whole process of downward pressure of the surgical cutting instrument is stable, compared with manual testing, the obtained testing result is more accurate and more reliable, manual participation is not needed in the whole testing process, and the testing efficiency is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of testing equipment, and in particular relates to a service life testing device for surgical cutting instruments. Background Art

[0002] With the development of ultrasound technology and its integration with modern medicine, medical ultrasonic scalpels have gradually been used in surgical operations. For example, medical ultrasonic scalpels can be used to cut, drill or grind bone tissue, thereby achieving the purpose of bone tissue processing.

[0003] In order to ensure the accuracy of the ultrasonic bone knife during use, it is necessary to test its power, working time of each gear and life of the ultrasonic knife. In traditional technology, the user usually holds the measurement and manually controls the ultrasonic bone knife to feed and cut the object. However, there are human errors in manual control, and it cannot be ensured that the bone knife is controlled to cut at a uniform speed and force. The test process will be affected by the operator's human factors, resulting in large deviations in the test results and low efficiency of manual testing. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a service life testing device for surgical cutting instruments, which is used to solve the problems of inaccurate manual testing results and low efficiency in the prior art.

[0005] To achieve the above-mentioned and other related objectives, the present invention provides, in one aspect, a device for testing the service life of a surgical cutting instrument, comprising:

[0006] a clamping mechanism for fixing the working object of the surgical cutting instrument;

[0007] A clamping mechanism, used to fix the surgical cutting instrument, and the clamping mechanism is movable relative to the clamping mechanism;

[0008] A power mechanism for outputting power;

[0009] The moving mechanism is connected to the power mechanism, and is used to receive the power and move along a preset moving trajectory under the drive of the power, and the clamping mechanism is fixedly connected to the moving mechanism so that the surgical cutting instrument fixed on the clamping mechanism cuts the work object according to the preset moving trajectory.

[0010] Furthermore, the power mechanism includes a first power, and the moving mechanism includes a transmission component and a pair of first moving components. The transmission component is connected to the first power transmission, and the transmission component is connected to the pair of first moving components. The power transmitted by the transmission component drives the pair of first moving components to move back and forth in the first direction at the same time.

[0011] Furthermore, the transmission assembly includes a driving wheel, a driven wheel and a belt, the power input end of each first moving assembly is connected to the driven wheel, the driving wheel is connected to the power output end of the first power, and the driving wheel and the driven wheel are connected through the belt.

[0012] Furthermore, the transmission assembly further includes a tensioning bracket, on which a tensioning wheel for tensioning the belt is mounted.

[0013] Furthermore, the power mechanism includes a second power, and the moving mechanism includes a second moving component, and the second moving component is driven by the second power and moves back and forth along the second direction.

[0014] Furthermore, the power mechanism includes a third power, the moving mechanism includes a third moving component, and the third moving component is driven by the third power and reciprocates along a third direction.

[0015] Furthermore, the power mechanism includes a first power, a second power and a third power, and the moving mechanism includes a first moving component, a second moving component and a third moving component. The first moving component is driven by the first power, the second moving component is driven by the second power, and the third moving component is driven by the third power. Each moving component includes a screw rod and a moving block sleeved on the screw rod. The clamping mechanism is connected to the moving block of the third moving component, the third moving component is connected to the moving block of the second moving component, and the second moving component is connected to the moving block of the first moving component. Each screw rod is connected to its corresponding power mechanism, and the corresponding screw rod is driven by its own power mechanism to move along a preset moving direction, thereby driving the clamping mechanism to move along a preset moving trajectory, and a limit sensor is provided on each moving component.

[0016] Furthermore, the clamping mechanism includes a clamping member and a pressure sensor, the pressure sensor is located between the clamping member and the third moving component, the clamping member is provided with a clamping channel for the surgical cutting instrument to pass through, the pressure sensor is electrically connected to the controller, and the controller is used to control the moving mechanism to move along a preset trajectory.

[0017] Furthermore, the clamping member includes a first connecting section and a second connecting section, the second connecting section is bent relative to the first connecting section, and the clamping channel is located in the second connecting section; and

[0018] The second connecting section is provided with a clamping portion for installing the surgical cutting instrument, and the clamping portion includes a first clamping portion and a second clamping portion arranged opposite to each other, and the first clamping portion and the second clamping portion have a groove structure, and the groove structure forms the clamping channel, and the second connecting section is also provided with a locking member for adjusting the distance between the first clamping portion and the second clamping portion.

[0019] Furthermore, it also includes a frame, and the clamping mechanism, the power mechanism and the moving mechanism are all arranged on the frame; wherein,

[0020] The clamping mechanism includes a first fixed beam and a second fixed beam, the first fixed beam is movably set on the second fixed beam, and the second fixed beam is movably set on the frame; the end faces at both ends of the first fixed beam are respectively connected to the inner side wall of the second fixed beam and the inner side wall of the frame; the first fixed beam is provided with a first fixing piece for fixing the bone plate, and the first fixing piece can move relative to the first fixed beam.

[0021] As described above, the present invention has the following beneficial effects: The present invention provides a power mechanism that drives the movement of the moving mechanism and thus the movement of the surgical cutting instrument, thereby testing operations such as cutting and grinding on the work object. During the entire test process, the magnitude of the force and other factors are uniformly applied along a preset trajectory, and the downward pressure of the surgical cutting instrument is stable throughout the entire process. Compared to manual testing, the test results obtained by the present invention are more accurate and reliable. Using the surgical cutting instrument service life testing device provided by the present invention, the entire testing process does not require manual participation, resulting in high testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the service life testing device for surgical cutting instruments according to an embodiment of the present invention Figure 1 ;

[0023] Figure 2 for Figure 1 A magnified view of middle A;

[0024] Figure 3 for Figure 1 Enlarged view of middle B;

[0025] Figure 4 for Figure 1 Enlarged view of middle C;

[0026] Figure 5 Schematic diagram of the service life testing device for surgical cutting instruments according to an embodiment of the present invention Figure 2 .

[0027] Label Description

[0028] 1-frame, 11-mounting beam, 2-moving mechanism, 21-first moving assembly, 210-screw, 211-moving block, 212-slider, 213-slide rail, 214-support frame, 22-second moving assembly, 221-second power, 222-second bracket, 23-third moving assembly, 231-third power, 232-third bracket, 24-transmission assembly, 241-driving wheel, 242-driven wheel, 243- Belt, 244-tensioning bracket, 245-tensioning pulley, 25-first power, 26-limit sensor, 3-clamping mechanism, 31-first fixed beam, 32-second fixed beam, 33-first fixing member, 4-clamping mechanism, 41-clamping member, 411-first connecting section, 412-second connecting section, 413-clamping channel, 414-gap, 415-locking member, 42-pressure sensor, 5-water tank, 6-surgical cutting instrument. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0030] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0031] In order to describe the present invention in detail, the service life testing device for surgical cutting instruments provided by the present invention will be specifically described below.

[0032] like Figures 1 to 5As shown, the present invention provides a device for testing the service life of a surgical cutting instrument, comprising a clamping mechanism 4, a moving mechanism 2, a clamping mechanism 3, and a power mechanism. The clamping mechanism 3 is located below the moving mechanism 2 and is used to secure the workpiece of the surgical cutting instrument 6. The power mechanism is used to output power. The clamping mechanism 3 is used to secure the workpiece of the surgical cutting instrument 6, and the clamping mechanism 4 is used to secure the surgical cutting instrument 6 and is movable relative to the clamping mechanism 3. The moving mechanism 2 is connected to the power mechanism, receiving power and moving along a preset trajectory under the power. The clamping mechanism 4 is fixedly connected to the moving mechanism 2, so that the surgical cutting instrument 6 fixed to the clamping mechanism 4 cuts the workpiece along the preset trajectory. The moving mechanism 2 drives the surgical cutting instrument 6 along the preset trajectory to perform cutting or grinding operations on the workpiece, thereby making the entire testing process intelligent. The surgical cutting instrument 6 described in the present invention can be a bone drill, a grinding drill, an ultrasonic osteotome, or other surgical tool that requires reciprocating motion for service life testing. The workpiece is typically a bone plate. A bone plate is fixed on the clamping mechanism 3, and the clamping mechanism 4 is driven to move by the moving mechanism 2, so that the surgical cutting instrument 6 can move following the movement of the clamping mechanism 4 to cut the bone plate, thereby testing the service life of the surgical cutting instrument.

[0033] In some embodiments, the power mechanism includes a first power 25, and the moving mechanism 2 includes a transmission assembly 24 and a pair of first moving assemblies 21. The transmission assembly 24 is in transmission connection with the first power 25, and the transmission assembly 24 is connected to the pair of first moving assemblies 21. The power transmitted by the transmission assembly 24 drives the pair of first moving assemblies 21 to move back and forth simultaneously along the first direction. In the present invention, the first direction is the longitudinal direction of the test device, that is, the reciprocating movement along the Y-axis direction of the test device.

[0034] In some embodiments, as Figure 5 As shown, the transmission assembly 24 includes a driving pulley 241, a driven pulley 242, and a belt 243. Each first movable assembly 21 is connected to a driven pulley 242 at its power input. The driving pulley 241 is connected to the output of the first power source 25, and the driving pulleys 241 and the driven pulleys 242 are connected via a belt 243. If the surgical cutting instrument only moves longitudinally, the first power source 25 can drive the first movable assembly 21 to achieve reciprocating motion along the Y-axis.

[0035] The driving pulley 241, serving as the core drive unit, forms a closed-loop transmission mechanism with the driven pulley 242 via a high-strength synchronous belt or toothed belt. Each first mobile assembly 21 is equipped with a driven pulley 242 at its power input. Both the driving pulley 241 and the driven pulley 242 can be constructed of aluminum alloy, with anti-slip grooves on their surfaces to effectively enhance the friction coefficient with the belt 243. The driving pulley 241 is rigidly connected to the output shaft of the first power unit 25, and its wheel diameter is optimized based on the system's transmission ratio requirements. The driving pulley 241 and each driven pulley 242 are spatially staggered, forming a triangular mechanism. The transmission assembly 24 maintains optimal operating conditions via a tensioning pulley 245 with adjustable preload.

[0036] The tension of belt 243 is adjusted via a tensioning pulley 245. To facilitate adjustment, a tensioning bracket 244 is provided with an adjustment slot, allowing the tensioning pulley 245 to slide up and down. Once the tensioning pulley 245 is adjusted to the desired position, the bolts are tightened. The adjustment slot can be vertical or tilted. Tensioning bracket 244 is L-shaped and mounted with bolts at the bottom.

[0037] In some embodiments, the power mechanism includes a second power 221, and the mobile mechanism 2 includes a second mobile assembly 22. The second mobile assembly 22 is driven by the second power 221 and reciprocates along a second direction. The second direction is the lateral direction of the test device, that is, reciprocates along the X-axis direction of the test device. If the surgical cutting instrument only moves laterally, the surgical cutting instrument can be reciprocated along the X-axis direction by simply driving the second mobile assembly 22 with the second power 221. If the surgical cutting instrument needs to move both longitudinally and laterally, the first mobile assembly and the second mobile assembly are connected, and then the clamping mechanism is installed on one of the first mobile assembly and the second mobile assembly.

[0038] In some embodiments, the power mechanism includes a third power source 231, and the moving mechanism includes a third moving assembly 23. The third moving assembly 23 is driven by the third power source 231 and reciprocates along a third direction. The third direction is perpendicular to the test device, i.e., the Z-axis direction of the test device. The third power source 231 drives the third moving assembly 23 to achieve vertical movement of the surgical cutting instrument.

[0039] In some embodiments, the number of moving components corresponds to the number of dynamic forces, and the number of moving components in the service life test device corresponds to the model parameters of the corresponding surgical cutting instrument. For example, the service life test of some surgical cutting instruments only requires one dimension, while others require two or three dimensions. It should be noted that the dimension here refers to the movement of the surgical cutting instrument along the X-axis, Y-axis, or Z-axis of the test device.

[0040] In some embodiments, as Figure 1and Figure 5 As shown, when three-dimensional movement is required, the power mechanism includes a first power 25, a second power 221, and a third power 231, and the moving mechanism 2 includes a first moving assembly 21, a second moving assembly 22, and a third moving assembly 23. The first moving assembly 21 is driven by the first power 25, the second moving assembly 22 is driven by the second power 221, and the third moving assembly 23 is driven by the third power 231.

[0041] In some embodiments, the moving mechanism includes a pair of first moving assemblies 21, and the moving mechanism 2 further includes a transmission assembly 24. The transmission assembly 24 is in transmission connection with the first power 25, and the transmission assembly 25 is connected to the pair of first moving assemblies 22. That is, the pair of first moving assemblies 21 are connected to the first power 25 via the transmission assembly 24, and the power transmitted by the transmission assembly 24 drives the pair of first moving assemblies 21 to move back and forth simultaneously along the first direction.

[0042] In some embodiments, the second movable assembly 22 is mounted at both ends on the first movable assembly 21 and is capable of reciprocating along a first direction on the first movable assembly 21. The third movable assembly 23 is mounted on the second movable assembly 22 and is capable of reciprocating along a second direction on the second movable assembly 22. The clamping mechanism 4 is mounted on the third movable assembly 23 and is capable of reciprocating along a third direction on the third movable assembly 23. The first direction intersects the second direction, and the second direction intersects the third direction, which is equivalent to the first direction being along the Y direction, the second direction being along the Z direction, and the third direction being along the Z direction.

[0043] In some embodiments, a pair of first movable assemblies 21 are provided so that when the second movable assembly 22 moves, the first movable assemblies 21 on both sides can provide power to the second movable assembly 22. The two first movable assemblies 21 are arranged relative to each other, preferably in parallel. In order to synchronize the two first movable assemblies 21 and prevent the second movable assembly 22 from suffocating, the same transmission assembly 24 and first power 25 are used to drive the first movable assemblies 21. That is, the first power 25 drives the two first movable assemblies 21 to move simultaneously. Each first movable assembly 21 is connected to the first power 25 via the transmission assembly 24, and the transmission assembly 24 is used to transmit the power output by the first power 25 to each first movable assembly 21.

[0044] In some embodiments, as Figure 2 and Figure 5As shown, the first moving assembly 21, the second moving assembly 22, and the third moving assembly 23 each include a screw 210 and a moving block 211. The moving block 211 is sleeved on the outside of the screw 210. The clamping mechanism 4 is connected to the moving block 211 of the third moving assembly 23. The third moving assembly 23 is connected to the moving block 211 of the second moving assembly 22. The second moving assembly 22 is connected to the moving block 211 of the first moving assembly 21. Both ends of the screw 210 are supported by a support frame 214. In order to ensure smooth rotation of the screw 210, a bearing is installed in the support frame 214. The screw 210 is connected to the inner ring of the bearing. Each screw is connected to its corresponding power source. The corresponding power source drives the corresponding screw to move along a preset moving direction, thereby driving the clamping mechanism to move along a preset moving trajectory.

[0045] The support frame of the second moving assembly 22 is mounted on the moving block 211 of the first moving assembly 21. The movement of the moving block 211 of the first moving assembly 21 drives the second moving assembly 22. Of course, the first moving assembly 21 can also adopt other structures as long as it can drive the second moving assembly 22 to move along the first direction.

[0046] The screw rod of the first moving assembly 21 is driven to rotate by the first power 25, the screw rod of the second moving assembly 22 is driven to rotate by the second power 221, and the screw rod of the third moving assembly 23 is driven to rotate by the third power 231. To prevent over-limit movement, limit sensors 26 are provided at both ends of each moving assembly.

[0047] The second moving assembly 22 is provided with a second bracket 222, and the third moving assembly 23 is provided with a third bracket 232. The third bracket 232 is fixedly connected to the moving block of the second moving assembly 22. To ensure greater stability of the moving block 211 during movement, each moving assembly further includes a slider 212, which provides a guide function for the movement of the moving block. Both the second bracket 222 and the third bracket 232 are mounted with a slide rail 213, which cooperates with the slider 212. The number of sliders 212 can be one or two.

[0048] In this embodiment, the length of the slider 212 is the same as that of the moving block 211. The slider 212 is configured as a U-shaped groove that cooperates with the slide rail 213. The cooperation between the slider 212 and the slide rail 213 provides greater stability for the moving block 211 during movement. Alternatively, the slider may not be provided, and a groove that cooperates with the slide rail 213 may be directly provided on the side of the moving block 211 near the slide rail 213.

[0049] In some embodiments, the clamping mechanism 4 includes a clamping member 41 and a pressure sensor 42, such as Figure 3As shown, the pressure sensor 42 is located between the clamping member 41 and the moving block of the third moving assembly 23. The clamping member 41 is provided with a clamping channel 413 for the surgical cutting instrument 6 to pass through. The pressure sensor 42 is electrically connected to the controller, which is used to control the movement of the moving mechanism 2 along a preset trajectory, such as controlling the path of the surgical cutting instrument 6, the depth of descent along the Z axis, and the speed along a prescribed path. During the descent test of the surgical cutting instrument 6, the pressure sensor 42 detects the downward force of the surgical cutting instrument 6, thereby ensuring that the force pressing down the surgical cutting instrument 6 is relatively stable during each test, thereby ensuring the accuracy of the test results.

[0050] In some embodiments, the clamping member 41 includes a first connecting section 411 and a second connecting section 412 , the clamping channel 413 is located in the second connecting section 412 , the first connecting section 411 is connected to the pressure sensor 42 , and the second connecting section 412 extends toward a side away from the pressure sensor 42 .

[0051] The first connecting segment 411 and the second connecting segment 412 are bent at a certain angle. In some embodiments, the first connecting segment 411 extends vertically and the second connecting segment 412 extends horizontally. The first connecting segment 411 and the second connecting segment 412 are vertically arranged to form an L shape.

[0052] Among them, the second connecting section 412 is provided with a clamping part for installing the surgical cutting instrument 6, and the clamping part includes a first clamping part and a second clamping part arranged opposite to each other. The first clamping part and the second clamping part have a groove structure, and the groove structure forms a clamping channel 413 through which the surgical cutting instrument passes. The clamping part also includes a locking part 415 for adjusting the distance between the first clamping part and the second clamping part.

[0053] One end of the second connecting section 5 is connected to the first connecting section 411, and the other end is a free end. A gap 414 is provided on the second connecting section 412, which passes horizontally through the end face of the free end from the clamping channel 413. The first clamping part and the second clamping part are formed on both sides of the gap 414. The first clamping part and the second clamping part are integrally formed by the second connecting section 5. The locking piece 415 can adjust the size of the clamping channel 413 by adjusting the size of the gap 414.

[0054] The size of the clamping channel 413 can be adjusted using a locking member 415. One end of a gap 414 communicates with the clamping channel 413, while the other end extends to the end surface of the second connecting segment 412. The gap 414 can also be provided on the side of the second connecting segment. The gap 414 extends through the thickness of the second connecting segment 412. This design not only ensures the feasibility of adjustment but also ensures the mechanical stability of the entire clamping mechanism. For example, the gap 414 can be an open notch provided in the second connecting segment 412, thereby adjusting the size of the clamping channel 413.

[0055] The size of gap 414 can be adjusted using a locking member 415. Specifically, locking member 415 can be a bolt, a clamp, or other member capable of changing the size of gap 414. By adjusting the opening or closing of gap 414 using locking member 415, the size of clamping channel 413 can be precisely controlled. This intuitive adjustment method significantly improves operational efficiency and reduces adjustment difficulty.

[0056] In some embodiments, a first locking hole is provided on the first clamping portion, and a second locking hole relative to the first locking hole is provided on the second clamping portion. The axes of the first locking hole and the second locking hole are located on a straight line, that is, the first locking hole and the second locking hole are coaxially arranged, and the locking member 415 adjusts the size of the gap 414 after passing through the first locking hole and the second locking hole.

[0057] The locking member 415 may be a bolt, with internal threads provided on the inner walls of the first and second locking holes, or internal threads provided inside the first locking hole and only inside the second locking hole. The bolt passes through the first locking hole and connects with the second locking hole, and tightening the bolt can change the size of the gap 414. Alternatively, the inner walls of neither the first or second locking holes are provided with internal threads, and the bolt's screw rod passes through the first and second locking holes and engages with the screw rod through a nut, which can also change the size of the gap 414.

[0058] To facilitate adjustment, gap 414 is located at the free end of second connecting section 412, that is, gap 414 is located on the side of clamping channel 413 away from first connecting section 411. When adjusting, whether using a tool or by hand, there is no need to bypass other mechanical components, and gap 414 can be directly and quickly accessed, greatly reducing obstacles during operation and significantly shortening adjustment time. Furthermore, locating gap 414 at the free end of second connecting section 412, that is, gap 414 is located on the side of second connecting section 412 away from first connecting section 411, also reduces the impact on the installed pressure sensor 42 during adjustment, further improving the stability and reliability of the overall structure of clamping member 41.

[0059] In some embodiments, the service life testing device for surgical cutting instruments further comprises a frame 1, on which the clamping mechanism 3, the power mechanism and the moving mechanism 2 are all arranged. Figure 4As shown, the clamping mechanism 3 includes two first fixing beams 31 and a second fixing beam 32. The first fixing beam 31 is movably mounted on the second fixing beam 32, which is in turn movably mounted on the frame 1. The end faces of the first fixing beams 31 are connected to the inner sidewalls of the second fixing beam 32 and the inner sidewalls of the frame 1, respectively, allowing the spacing between the two first fixing beams 31 to be adjusted according to the length of the bone plate. The first fixing beams 31 are provided with first fixing members 33 for securing the bone plate. Each first fixing beam 31 is provided with two first fixing members 33, with the bone plate clamped between the two first fixing members 33. The first fixing members 33 are movable relative to the first fixing beams 31 to secure bone plates of varying widths. If the width of the bone plate exceeds the width of the first fixing beams 31, a longer first fixing beam 31 can be replaced, and the second fixing beam 32 can slide relative to the frame 1. Alternatively, the first fixing beams 31 can be designed to be retractable, with their length adjusted by adjusting the amount of expansion or contraction of the first fixing beams 31.

[0060] To facilitate adjustment, sliding grooves are provided along the extension direction of the frame 1, the first fixed beam 31, and the second fixed beam 32. L-shaped connectors connect the second fixed beam 32 to the frame 1, and the first fixed beam 31 to the second fixed beam 32. Bolts pass through the connectors and tighten against the bottom of the corresponding sliding grooves, preventing sliding. Loosening the bolts allows sliding.

[0061] The spacing between the two first fixing beams 31 is adjustable, as is the position of the first fixing members 33 on the first fixing beams 31, allowing for the fixation of bone plates of varying sizes. A hollow area is formed between the two first fixing beams 31, and the bone plate is mounted between the two first fixing beams 31. This ensures that even if the ultrasonic osteotome descends too far during bone plate cutting, the data obtained will not be erroneous. Furthermore, the bottom of the bone plate in the cutting section is hollowed out, allowing the cooling medium ejected during cutting to flow away without accumulating on the bone plate and affecting the test.

[0062] During operations such as cutting and drilling the bone plate, the temperature will be relatively high, so a cooling medium, generally cooling water, needs to be sprayed. In order to prevent the cooling water from splashing, a water tank 5 is installed at the bottom of the clamping mechanism 3. The cooling water cools the bone plate and then flows into the water tank 5.

[0063] In some embodiments, a crossbeam 11 is mounted on the frame, a mounting plate is provided on the crossbeam 11, and a slide groove is provided on the mounting plate. The bottom of the tensioning bracket 244 is mounted on the frame 1 via bolts. Alternatively, the tensioning bracket 244 can be mounted on the mounting plate, with bolts passing through the tensioning bracket 244 and connected to the slide groove. In this manner, the position of the tensioning bracket 244 relative to the frame 1 can be adjusted. The first power 25 is also mounted on the mounting plate, and the mounting plate and the crossbeam 11 can also slide relative to each other.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A device for testing the service life of surgical cutting instruments, wherein: include: a clamping mechanism for fixing the working object of the surgical cutting instrument; A clamping mechanism, used to fix the surgical cutting instrument, and the clamping mechanism is movable relative to the clamping mechanism; A power mechanism for outputting power; The moving mechanism is connected to the power mechanism, and is used to receive the power and move along a preset moving trajectory under the drive of the power, and the clamping mechanism is fixedly connected to the moving mechanism so that the surgical cutting instrument fixed on the clamping mechanism cuts the work object according to the preset moving trajectory.

2. The service life testing device for surgical cutting instruments according to claim 1, wherein: The power mechanism includes a first power, and the moving mechanism includes a transmission component and a pair of first moving components. The transmission component is connected to the first power transmission, and the transmission component is connected to the pair of first moving components. The power transmitted by the transmission component drives the pair of first moving components to move back and forth simultaneously along the first direction.

3. The service life testing device for surgical cutting instruments according to claim 2, wherein: The transmission assembly includes a driving wheel, a driven wheel and a belt. The power input end of each first moving assembly is connected to the driven wheel, the driving wheel is connected to the power output end of the first power, and the driving wheel and the driven wheel are connected through the belt.

4. The service life testing device for surgical cutting instruments according to claim 3, wherein: The transmission assembly further comprises a tensioning bracket, on which a tensioning wheel for tensioning the belt is mounted.

5. The service life testing device for surgical cutting instruments according to claim 1 or 2, wherein: The power mechanism includes a second power, and the moving mechanism includes a second moving component. The second moving component is driven by the second power and reciprocates along a second direction.

6. The service life testing device for surgical cutting instruments according to claim 5, wherein: The power mechanism includes a third power, and the moving mechanism includes a third moving assembly. The third moving assembly is driven by the third power and reciprocates along a third direction.

7. The service life testing device for surgical cutting instruments according to claim 1, wherein: The power mechanism includes a first power, a second power and a third power, and the moving mechanism includes a first moving component, a second moving component and a third moving component. The first moving component is driven by the first power, the second moving component is driven by the second power, and the third moving component is driven by the third power. Each moving component includes a screw rod and a moving block sleeved on the screw rod. The clamping mechanism is connected to the moving block of the third moving component, the third moving component is connected to the moving block of the second moving component, and the second moving component is connected to the moving block of the first moving component. Each screw rod is connected to its corresponding power, and the corresponding screw rod is driven by its own power to move along a preset moving direction, thereby driving the clamping mechanism to move along a preset moving trajectory, and a limit sensor is provided on each moving component.

8. The service life testing device for surgical cutting instruments according to claim 6 or 7, wherein: The clamping mechanism includes a clamping member and a pressure sensor. The pressure sensor is located between the clamping member and the third moving component. The clamping member is provided with a clamping channel for the surgical cutting instrument to pass through. The pressure sensor is electrically connected to a controller, and the controller is used to control the moving mechanism to move along a preset trajectory.

9. The service life testing device for surgical cutting instruments according to claim 8, wherein: The clamping member includes a first connecting section and a second connecting section, the second connecting section is bent relative to the first connecting section, and the clamping channel is located in the second connecting section; and The second connecting section is provided with a clamping portion for installing the surgical cutting instrument, and the clamping portion includes a first clamping portion and a second clamping portion arranged opposite to each other, and the first clamping portion and the second clamping portion have a groove structure, and the groove structure forms the clamping channel, and the second connecting section is also provided with a locking member for adjusting the distance between the first clamping portion and the second clamping portion.

10. The service life testing device for surgical cutting instruments according to any one of claims 1 to 9, wherein: It also includes a frame, and the clamping mechanism, the power mechanism and the moving mechanism are all arranged on the frame; wherein, The clamping mechanism includes a first fixed beam and a second fixed beam, the first fixed beam is movably set on the second fixed beam, and the second fixed beam is movably set on the frame; the end faces at both ends of the first fixed beam are respectively connected to the inner side wall of the second fixed beam and the inner side wall of the frame; the first fixed beam is provided with a first fixing piece for fixing the bone plate, and the first fixing piece can move relative to the first fixed beam.

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