Medical cutter sharpness detection device
By designing a detection device that controls the clamping parts using a bracket and a moving mechanism, the problem of inaccurate detection of medical knives in existing technologies has been solved. This enables precise assessment of knife sharpness, breaking strength, and service life, ensuring constant cutting force and improving detection accuracy and reliability.
Patent Information
- Application Number
- CN202520194168.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-08
AI Technical Summary
Existing medical scalpel testing devices cannot accurately measure cutting time, cannot guarantee constant output of cutting force, cannot simulate the maximum thrust of the scalpel during cutting or drilling, and cannot assess sharpness, breaking strength, and service life.
The detection device consists of a bracket, clamping components, a moving device, and a detection component. The clamping components are controlled by a motor to move at a constant speed to clamp a simulated hard plate. The rollers are flush with the cutting end of the tool, and the sensing component detects the cutting time and thrust to evaluate the tool's sharpness, breaking strength, and service life.
It enables accurate assessment of tool sharpness, breaking strength, and service life, ensuring constant cutting force, simulating actual usage conditions, and improving detection accuracy and reliability.
Smart Images

Figure CN223856957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical cutter field especially relates to a medical cutter sharpness detection device. BACKGROUND
[0002] In prior art, the sharpness requirement of medical cutter is much more strict than that of common cutter, the medical cutter needs to pass through sharpness test after production, the cutter sharpness detection of the past is tested by cutter cutting simulation hard board, but the existing detection device is controlled by hand to cut the static simulation hard board, so the cutting time of the cutter cannot be accurately measured, the constant output of cutting force cannot be guaranteed, the maximum thrust that the cutter can bear when cutting or drilling cannot be simulated, the sharpness, breaking strength and expected service life of the cutter blade when cutting cannot be simulated and calculated. SUMMARY
[0003] The medical cutter sharpness detection device provided by the embodiment of the application solves the problem that the cutting time of the cutter cannot be accurately measured, the constant output of cutting force cannot be guaranteed, the maximum thrust that the cutter can bear when cutting or drilling cannot be simulated, the sharpness, breaking strength and expected service life of the cutter blade when cutting cannot be simulated and calculated in the prior art.
[0004] The technical scheme adopted by the embodiment of the application is as follows.
[0005] A medical cutter sharpness detection device comprises a support, a clamping piece for clamping a simulation hard board, a moving device for moving the clamping piece, a support column arranged on the support, a connecting piece arranged on the support column, a first block sliding on the support column, a limiting piece for limiting the position of a mobile phone, a moving piece for moving the first block up and down, and a detection piece for detecting the cutting time of the mobile phone.
[0006] As a further improvement of the above technical scheme, the two sides of the clamping piece are provided with baffle plates; the moving device is composed of a motor, a screw rod and a guide rod; the baffle plates prevent paper scraps from being stuck in the moving device.
[0007] As a further improvement of the above technical scheme, the moving piece comprises a driving piece, a rack arranged on the first block and a gear meshing with the rack; the gear is arranged at the acting end of the driving piece; when the driving piece rotates, the rack moves up and down, thereby driving the first block to move up and down.
[0008] As a further improvement of the above technical solution: the detection member comprises a first rod, a roller rotating on the first rod, an elastic member allowing the roller to contact the simulated hard board, a first plate arranged on the first rod, a second rod preventing the first rod from being separated from the first block, and a sensing member detecting the time when the roller is on the simulated hard board; the sensing member is arranged on the first block and the signal end of the sensing member corresponds to the first rod; the second rod is arranged on the first rod and is perpendicular to the first rod; one end of the elastic member abuts against the first block and the other end of the elastic member abuts against the first plate; the elastic member is sleeved on the first rod; and the roller is arranged at the bottom of the first rod.
[0009] As a further improvement of the above technical solution: the roller is flush with the cutting end of the mobile phone.
[0010] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0011] 1. The mobile device is arranged on the support, the mobile device is composed of a motor, a screw rod and a guide rod, the motor can adjust the rotation speed so that the clamping member moves at a uniform speed and a uniform force, the acting end of the mobile device is provided with the clamping member, the clamping member clamps the simulated hard board, the support is provided with a support column, the top of the support column is provided with a connecting piece, the connecting piece is provided with a driving member, the acting end of the driving member faces the support column, the acting end of the driving member is provided with a gear, the support column is slidably connected with a first block, the connecting piece is provided with a guide rod, the guide rod passes through the first block to prevent the first block from rotating, the first block is provided with a rack, the gear is engaged with the rack, the driving member rotates the gear to drive the rack to move up and down, at this time, the first block moves up and down synchronously with the rack, the first block is provided with a limiting member, the limiting member limits the position of the mobile phone, the first block is provided with a first rod, the first rod is consistent with the direction of the support column, the top of the first rod is provided with a second rod, the second rod is perpendicular to the first rod, the first block is provided with a sensing member, the acting end of the sensing member corresponds to the first rod, the first rod is provided with a first plate, the first plate is located on the lower side of the first rod, the first rod is sleeved with an elastic member, one end of the elastic member abuts against the first plate, the other end of the elastic member abuts against the first block, the bottom of the first rod is provided with a roller, the bottom of the roller is flush with the cutting end of the mobile phone, so that when the roller contacts the simulated hard board, the first rod is lifted, and at the same time, the roller contacts the sensing member, the sensing member detects and times the time when the first rod is lifted, until the mobile phone cuts the simulated hard board, at this time, the roller has no support force with the simulated hard board, the first rod is separated from the sensing member, so that the sensing member calculates the cutting time and the cutting efficiency to determine whether the cutting tool is qualified (whether the sharpness of the cutting tool meets the design requirements, whether the blade strength meets the design requirements), thereby realizing the simulation of the sharpness, the breaking strength and the expected service life of the cutting tool when the blade cuts. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structure schematic view of the medical knife sharpness detection device.
[0013] Figure 2 It is a structure schematic view of the medical knife sharpness detection device.
[0014] Figure 3 It is Figure 2 It is a partial enlarged view of A.
[0015] In the figure: 1, support; 2, clamping part; 21, baffle; 3, moving device; 4, support column; 5, connecting piece; 6, first block; 7, limiting part; 8, moving part; 81, driving part; 82, rack; 83, gear; 9, detection part; 91, first rod; 92, roller; 93, elastic part; 94, first plate; 96, second rod; 97, sensing part. DETAILED DESCRIPTION
[0016] The medical knife sharpness detection device provided by the embodiment of the application solves the problem in the prior art that the detection device is controlled by hand to cut a static simulation hard board, so that the cutting time of the knife cannot be accurately measured, and the feeding amount cannot be guaranteed to be synchronous.
[0017] The technical scheme in the embodiment of the application is to solve the above problems, and the general idea is as follows
[0018] In order to better understand the above technical scheme, the above technical scheme will be described in detail below in combination with the drawings of the specification and the specific implementation.
[0019] A medical knife sharpness detection device, comprising a support 1, a clamping part 2 for clamping a simulation hard board, a moving device 3 for driving the clamping part 2 to move, a support column 4 arranged on the support 1, a connecting piece 5 arranged on the support column 4, a first block 6 sliding on the support column 4, a limiting part 7 for limiting the position of the mobile phone, a moving part 8 for driving the first block 6 to move up and down, and a detection part 9 for detecting the cutting time of the mobile phone; the moving device 3 is arranged on the support 1; the clamping part 2 is arranged at the acting end of the moving part 8; the moving part 8 is arranged on the connecting piece 5; the acting end of the moving part 8 is connected with the first block 6; the detection part 9 is arranged on the first block 6; and the limiting part 7 is arranged on the first block 6.
[0020] Both sides of the clamping part 2 are provided with baffles 21; the moving device 3 is composed of a motor, a screw rod and a guide rod; the baffles 21 prevent paper scraps from being stuck in the moving device 3.
[0021] The moving part 8 comprises a driving part 81, a rack 82 arranged on the first block 6 and a gear 83 engaging with the rack 82; the gear 83 is arranged at the acting end of the driving part 81; the driving part 81 rotates to drive the rack 82 to move up and down, thereby driving the first block 6 to move up and down.
[0022] The detecting part 9 comprises a first rod 91, a roller 92 rotating on the first rod 91, an elastic part 93 pressing the roller 92 against the simulated hard board, a first plate 94 arranged on the first rod 91, a second rod 96 preventing the first rod 91 from being separated from the first block 6 and a sensing part 97 detecting the time when the roller 92 is on the simulated hard board; the sensing part 97 is arranged on the first block 6 and the signal end of the sensing part 97 corresponds to the first rod 91; the second rod 96 is arranged on the first rod 91 and is perpendicular to the first rod 91; one end of the elastic part 93 abuts against the first block 6 and the other end of the elastic part 93 abuts against the first plate 94; the elastic part 93 is sleeved on the first rod 91; the roller 92 is arranged at the bottom of the first rod 91.
[0023] The roller 92 is flush with the cutting end of the mobile phone.
[0024] The support 1 is provided with a moving device 3, which is composed of a motor, a screw rod and a guide rod. The motor can adjust the rotating speed so that the clamping piece 2 moves at a uniform speed. The working end of the moving device 3 is provided with the clamping piece 2, which clamps the simulated hard board. The support 1 is provided with a support column 4, the top of which is provided with a connecting piece 5. The connecting piece 5 is provided with a driving piece 81, the working end of which faces the support column 4. The working end of the driving piece 81 is provided with a gear 83. The support column 4 is slidably connected with a first block 6. The connecting piece 5 is provided with a guide rod, which penetrates through the first block 6 so as to prevent the first block 6 from rotating. The first block 6 is provided with a rack 82. The gear 83 is engaged with the rack 82. The driving piece 81 rotates the gear 83 so as to drive the rack 82 to move up and down. At this time, the first block 6 moves up and down synchronously with the rack 82. The first block 6 is provided with a limiting piece 7, which limits the position of the mobile phone. The first block 6 is provided with a first rod 91, which is consistent with the direction of the support column 4. The top of the first rod 91 is provided with a second rod 96, which is perpendicular to the first rod 91. The first block 6 is provided with a sensing piece 97, the working end of which corresponds to the first rod 91. The first rod 91 is provided with a first plate 94, which is located at the lower side of the first rod 91. The first rod 91 is provided with an elastic piece 93, one end of which abuts against the first plate 94, and the other end of which abuts against the first block 6. The bottom of the first rod 91 is provided with a roller 92, the bottom of which is flush with the cutting end of the mobile phone. When the roller 92 contacts the simulated hard board, the first rod 91 is lifted. The sensing piece 97 detects and times the lifting time of the first rod 91 until the mobile phone cutter finishes cutting the simulated hard board. At this time, the roller 92 has no supporting force with the simulated hard board. The elastic piece 93 exerts a force to the first plate 94 on the first rod 91, so that the first rod 91 is separated from the sensing piece 97. Thus, the sensing piece 97 calculates the cutting time and the cutting efficiency so as to determine whether the cutter is qualified.
[0025] The mobile device 3 is composed of a motor, a screw rod and a guide rod, the motor can adjust the rotating speed so that the clamping piece 2 moves at a uniform speed, the action end of the mobile device 3 is provided with the clamping piece 2, the clamping piece 2 clamps the simulated hard board, the support 1 is provided with a support column 4, the top of the support column 4 is provided with a connecting piece 5, the connecting piece 5 is provided with a driving piece 81, the action end of the driving piece 81 faces the support column 4, the action end of the driving piece 81 is provided with a gear 83, the first block 6 is slidably connected to the support column 4, the connecting piece 5 is provided with a guide rod, the guide rod passes through the first block 6 so as to prevent the first block 6 from rotating, the first block 6 is provided with a rack 82, the gear 83 is engaged with the rack 82, the driving piece 81 rotates the gear 83 so as to drive the rack 82 to move up and down, at this time, the first block 6 moves up and down synchronously with the rack 82, the first block 6 is provided with a limiting piece 7, the limiting piece 7 limits the position of the mobile phone, the first block 6 is provided with a first rod 91, the first rod 91 is consistent with the direction of the support column 4, the top of the first rod 91 is provided with a second rod 96, the second rod 96 is perpendicular to the first rod 91, the first block 6 is provided with a sensing piece 97, the action end of the sensing piece 97 corresponds to the first rod 91, the first rod 91 is provided with a first plate 94, the first plate 94 is located on the lower side of the first rod 91, the first rod 91 is provided with an elastic piece 93, one end of the elastic piece 93 abuts against the first plate 94, the other end of the elastic piece 93 abuts against the first block 6, the bottom of the first rod 91 is provided with a roller 92, the bottom of the roller 92 is flush with the cutting end of the mobile phone, so that when the roller 92 contacts the simulated hard board, the first rod 91 is lifted, the sensing piece 97 detects and times the lifting time of the first rod 91, until the mobile phone cuts the simulated hard board, at this time, the roller 92 has no supporting force with the simulated hard board, the elastic piece 93 exerts force to the first plate 94 on the first rod 91, so that the first rod 91 is separated from the sensing piece 97, so that the sensing piece 97 calculates the cutting time and the cutting efficiency to determine whether the cutter is qualified, thereby realizing the simulation of the maximum thrust that the cutter can withstand when cutting or drilling, the sharpness of the cutter blade when cutting, the breaking strength and the expected service life.
[0026] Although the preferred embodiments of the present application have been described, those skilled in the art can make other changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to cover all such changes and modifications as falling within the scope of the present application.
[0027] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.
Claims
1. A device for detecting the sharpness of medical cutting tools, characterized in that, The utility model provides a cutting device for mobile phone, including support (1), clamping piece (2) that clamps analog hard board, moving device (3) that drives the movement of clamping piece (2), support (4) is arranged on support (1), connecting piece (5) is arranged on support (4), first block (6) is slid on support (4), limiting piece (7) that limits cell phone position, moving piece (8) that drives first block (6) moves up and down and detection piece (9) that detects cell phone cutting time, moving device (3) is arranged on support (1), clamping piece (2) is arranged in the action end of moving piece (8), moving piece (8) is arranged on connecting piece (5), the action end of moving piece (8) is connected with first block (6), detection piece (9) is arranged on first block (6), limiting piece (7) is arranged on first block (6).
2. The medical knife sharpness testing device of claim 1, wherein The both sides of clamping piece (2) are provided with baffle (21), moving device (3) is through motor, screw rod and guide rod, baffle (21) prevents cutting fly dirt and is clamped into the screw rod and guide rod of moving device (3).
3. The medical cutting tool sharpness detection apparatus according to claim 1, wherein Moving piece (8) includes driving part (81), rack (82) being arranged on first block (6) and gear (83) engaging rack (82), gear (83) is arranged the action end of driving part (81), when driving part (81) rotates, drives rack (82) to move up and down to drive first block (6) to move up and down.
4. The medical cutting tool sharpness detection apparatus of claim 1, wherein Detection piece (9) includes first rod (91), gyro wheel (92) being rotated on first rod (91), elastic element (93) that makes gyro wheel (92) contact analog hard board, first plate (94) being arranged on first rod (91), second rod (96) that prevents first rod (91) and separates first block (6) and inductive element (97) that detects the time of gyro wheel (92) on analog hard board, inductive element (97) is arranged on first block (6) and the signal end of inductive element (97) corresponds with first rod (91), second rod (96) is arranged on first rod (91) and second rod (96) is perpendicular with first rod (91), one end of elastic element (93) bears first block (6), the other end of elastic element (93) bears first plate (94), elastic element (93) is sleeved in first rod (91), gyro wheel (92) is arranged at the bottom of first rod (91).
5. The medical cutting tool sharpness detection apparatus of claim 4, wherein Gyro wheel (92) is flush with the cutting end of mobile phone.