Ultrasonic scalpel bar pressure testing device

Abstract

The utility model relates to an ultrasonic scalpel bar pressure testing device which is provided with a bottom plate. A digital display pull and push dynamometer is arranged on the bottom plate in a sliding mode, a plurality of radial positioning assemblies and axial positioning assemblies are arranged on the bottom plate, each radial positioning assembly comprises a first support, a positioning block and a pressing device, a first cutter groove is formed in each positioning block, and a cutter bar is fixedly installed in each first cutter groove through the corresponding pressing device. The axial positioning assembly comprises a second support, a cam, a positioning shaft, a limiting push block and a leaning and pressing block, a reset spring is arranged between the limiting push block and the second support, the positioning shaft is sleeved with the reset spring, the two ends of the reset spring act on the second support and the limiting push block respectively, a second cutter groove is formed in the leaning and pressing block, and a limiting pressing face is arranged on the second cutter groove. The compactor carries out radial positioning by pressing the cutter bar in the first cutter groove, and the digital display pull and push dynamometer carries out pressing and pressure measurement on the inner core of the cutter bar through sliding. The device is ingenious in structure, convenient and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ultrasonic scalpel rod testing, in particular to an ultrasonic scalpel rod pressure testing device. BACKGROUND

[0002] The main working principle of the ultrasonic scalpel is to generate a stable ultrasonic frequency electric signal by a high-frequency current generator (main machine), convert the electric energy into mechanical energy through a transducer, and generate high-frequency vibration. The vibration is amplified by an amplitude changer and transmitted to the knife head. The high-frequency vibration of the knife head vaporizes the water in the contacted tissue and denatures the protein, thereby realizing cutting and coagulation effect. In addition, the ultrasonic scalpel also has micro acoustic flow effect, cavitation effect, thermal effect and hemostatic effect.

[0003] At present, when the ultrasonic scalpel is put into market use, the overall force detection of the ultrasonic scalpel is generally carried out after the scalpel is assembled. However, there are still few devices for testing the pressure of the ultrasonic scalpel rod. However, during the use of the ultrasonic scalpel, the rod and the inner core of the rod generally slide. Therefore, it is necessary to screen the stress between the rod and the inner core of the rod in advance before the ultrasonic scalpel is assembled. Otherwise, it will affect the yield of the ultrasonic scalpel as a whole and affect the use efficiency of the ultrasonic scalpel. Therefore, it is necessary to develop a detection device for detecting the pressure of the rod and the inner core of the rod of the ultrasonic scalpel. SUMMARY

[0004] The utility model aims at providing a kind of ultrasonic scalpel rod pressure testing device, structure is ingenious, the stability of the rod is guaranteed by the axial and radial positioning to the rod, and the push of the inner core of the rod is pushed by digital display push-pull gauge, so as to accurately determine the pressure between the rod and the inner core of the rod, and it is convenient and practical.

[0005] The technical scheme for achieving the utility model discloses the following: the utility model discloses a bottom plate, a digital push-pull force gauge for pressing the inner core of a tool bar is slidably arranged on the bottom plate, a plurality of radial positioning assemblies for positioning the tool bar in the radial direction and axial positioning assemblies for positioning the tool bar in the axial direction are arranged on the bottom plate, the radial positioning assembly comprises a first support fixed on the bottom plate, a positioning block fixed on the first support and a presser arranged on the positioning block, a first tool groove for placing the tool bar is arranged on the positioning block and extends from one end of the positioning block to the other end of the positioning block, the tool bar is fixedly installed in the first tool groove through the presser, the axial positioning assembly comprises a second support fixed on the bottom plate, a cam rotatably connected to the second support, a positioning shaft slidably arranged on the second support, a limiting push block arranged at one end of the positioning shaft and a pressing block arranged at the other end of the positioning shaft and capable of pressing the tool bar in the axial direction, a return spring is arranged between the limiting push block and the second support, the return spring is sleeved on the positioning shaft, and the two ends of the return spring act on the second support and the limiting push block respectively, the pressing block is provided with a second tool groove through which the tool bar passes, and a limiting pressing surface for pressing and limiting the stepped surface of the tool bar is arranged at the end of the second tool groove away from the first support, the limiting pressing surface is used for positioning the tool bar in the axial direction by pressing the stepped surface of the tool bar, the presser is used for positioning the tool bar in the radial direction by pressing the tool bar in the first tool groove, and the digital push-pull force gauge is used for pressing and measuring the inner core of the tool bar by sliding.

[0006] Further, the bottom plate is provided with a positioning plate, the positioning plate is provided with a bottom slide rail, the digital push-pull force gauge is provided with a bottom sliding block matched with the bottom slide rail, and the digital push-pull force gauge is slidably connected to the positioning plate through the cooperation of the bottom sliding block and the bottom slide rail.

[0007] Further, the radial positioning assemblies are staggered on the bottom plate, the presser comprises a first rotating base fixed on the positioning block, a first pressing plate rotatably connected to the first rotating base, a first rotating frame rotatably connected to the first rotating base and a second rotating frame rotatably connected to the first pressing plate and the first rotating frame, the first pressing plate is arranged in the second rotating frame, the second rotating frame is arranged in the first rotating frame, the rotating axes of the first rotating frame, the second rotating frame and the first pressing plate are all arranged in parallel with the extension direction of the first tool groove, and the pressing plate is arranged on the first pressing plate.

[0008] Furthermore, the aforementioned second support is provided with a second rotating seat integrally formed with the second support and a limiting block. The cam is rotatably connected to the second rotating seat, and the rotation axis of the cam is parallel to the base plate. A limiting groove is formed between the second rotating seat and the limiting block. The limiting push block and the return spring are both disposed in the limiting groove. The two ends of the return spring act on the limiting push block and the limiting block, respectively. The limiting block is provided with a through hole through which the positioning shaft can pass. The axis of the through hole is parallel to the base plate and perpendicular to the rotation axis of the cam. The positioning shaft is slidably mounted on the limiting block through its cooperation with the through hole. A limiting inclined surface is provided between the second rotating seat and the bottom of the limiting groove to limit the cam. The cam is provided with a pressing part that can drive the positioning shaft to slide on the limiting block when the cam rotates, and a pressing inclined surface that can press against the limiting inclined surface. The second cutting groove on the pressing block extends through the rotation of the cam, the driving of the pressing part on the limiting push block when the cam rotates, and the sliding cooperation between the positioning shaft and the limiting block, and presses the limiting pressing surface against the stepped surface of the cutting bar.

[0009] Furthermore, the cam is provided with a drive shaft, both ends of which extend out of the two ends of the cam. The two sides of the second rotating seat are provided with rotating holes that are adapted to each drive shaft. The cam is rotatably connected to the second rotating seat through the cooperation of each drive shaft and rotating hole. The cam is also provided with a push rod that can push the cam to rotate.

[0010] Furthermore, the aforementioned base plate is equipped with two handles positioned opposite each other.

[0011] This utility model has the following positive effects: (1) By setting radial positioning components on the base plate, the radial positioning components are staggered to ensure the stability of the tool bar pressing. The clamping device on the first support fixes the tool bar in the first tool groove, thereby ensuring the radial stability of the tool bar. An axial positioning component is set on the base plate. The cam drives the limiting push block and the positioning shaft to slide by rotating, and drives the pressing block to extend. The second tool groove and the limiting pressure surface on the pressing block press the tool bar axially, thereby ensuring the axial stability of the tool bar. The return spring can be used after the test is completed. The pressure block then disengages from and resets the blade. After the blade is positioned axially and radially, the digital push-pull force gauge slides to press against the inner core of the blade, thereby measuring the ultimate pressure value between the inner core and the blade. This ensures the accuracy of the pressure test between the blade and its inner core, effectively solving the problem in existing technologies where the blade and its inner core are not tested and screened, thus affecting the overall performance and lifespan of the ultrasonic scalpel. It ensures the yield rate of the ultrasonic scalpel from initial assembly to final product and guarantees the effectiveness of the ultrasonic scalpel in later use. The structure is ingenious, convenient, and practical.

[0012] (2) The utility model discloses a positioning plate is set up on the bottom plate, and the bottom slide rail on the positioning plate and the bottom slide block on the digital push -pull force gauge, guarantee the smoothness of digital push -pull force gauge on the positioning plate sliding, on the other hand through the setting of bottom slide rail, can limit the sliding stroke of digital push -pull force gauge, thereby avoiding the excessive pressure of digital push -pull force gauge to the inner core of cutter bar.

[0013] (3) The utility model discloses a first rotation seat, first pressure plate, first rotation frame and second rotation frame are cooperated to the setting of the compression device, effectively guarantee the stable and firm of the pressure block on the first pressure plate to the cutter bar in the first cutter groove, avoid the radial jumping of cutter bar in the process of testing, guarantee the radial stability of cutter bar in the process of testing.

[0014] (4) The utility model discloses a second rotation seat is set up on the second support to guarantee the stability of cam in the rotation process, and the limiting groove is formed between the second rotation seat and the limiting block, and the limiting push block on the positioning shaft is cooperated, thereby effectively limiting the sliding stroke of the positioning shaft, and the limiting slope is set in the groove bottom of limiting groove, and the limiting slope and the pressure slope are cooperated, effectively guarantee the limiting of cam rotation, and effectively guarantee the face contact after the contact between the pressure part on the cam and the limiting push block, avoid the reset of pressure block after the extension of pressure block driven by the positioning shaft, further guarantee the stability of pressure block and pressure rod connection, and lay the foundation for the accurate detection of the pressure of pressure rod inner core in the pressure rod in the later stage, convenient and practical.

[0015] (5) The utility model discloses a cam is set up on, effectively guarantee the rotation control of cam of stable and fast of operating personnel, convenient and practical.

[0016] (6) The utility model discloses a handle is set up on the bottom plate, and the handle on the bottom plate is convenient for operating personnel to shift and carry the whole detection device, and is efficient and convenient. ACCURACY

[0017] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the attached drawing, the utility model is further detailed, wherein

[0018] Figure 1 It is the whole structure schematic diagram of the ultrasonic surgical knife cutter bar pressure test device and ultrasonic surgical knife connection in the utility model;

[0019] Figure 2 It is the whole structure schematic diagram of the ultrasonic surgical knife cutter bar pressure test device in the utility model;

[0020] Figure 3 It is the whole structure schematic diagram of the radial positioning assembly in the utility model;

[0021] Figure 4 It is the whole structure schematic view of axial positioning assembly in the utility model;

[0022] Figure 5 It is the connecting structure schematic view of digital display push-pull force gauge and positioning plate in the utility model. DETAILED DESCRIPTION

[0023] See Figures 1 to 5 The utility model has bottom plate 1, the digital display push-pull force gauge 4 that can press the cutter bar inner core in cutter bar to the bottom plate 1 on sliding is equipped with, the bottom plate 1 is equipped with a plurality of radial positioning assembly 2 that can be positioned to cutter bar and the axial positioning assembly 3 that can be positioned to cutter bar, the radial positioning assembly 2 includes the first support 21 fixed on the bottom plate 1, the positioning block 22 fixed on the first support 21 and the presser set up on the positioning block 22, the first cutter groove 28 for placing cutter bar is equipped on the positioning block 22, and the first cutter groove 28 extends to the other end of positioning block 22 along one end of positioning block 22, and cutter bar is fixedly installed in the first cutter groove 28 through the presser, the axial positioning assembly 3 includes the second support 31 fixed on the bottom plate 1, the cam 32 rotationally connected on the second support 31, the positioning shaft 33 slidingly set up on the second support 31, the limit push block 34 set up on one end of positioning shaft 33 and the pressure block 36 set up on the other end of positioning shaft 33 and can be positioned to cutter bar, the limit push block 34 and the second support 31 are equipped with reset spring 35, the reset spring 35 is sleeved on the positioning shaft 33, and the two ends of reset spring 35 are respectively acted on the second support 31 and limit push block 34, the pressure block 36 is equipped with the second cutter groove 37 for cutter bar to pass through, the second cutter groove 37 is equipped with the limit pressure surface 38 that can be positioned to the step surface on cutter bar and press on the end away from the first support 21, and the limit pressure surface 38 is positioned to cutter bar through the press on the step surface on cutter bar, and the presser is positioned to cutter bar through the press on cutter bar in the first cutter groove 28, and the digital display push-pull force gauge 4 is pressed and measured to cutter bar inner core through sliding.

[0024] The bottom plate 1 is equipped with positioning plate 12, the positioning plate 12 is equipped with bottom slide rail 13, the digital display push-pull force gauge 4 is equipped with the bottom slide block 41 matched with bottom slide rail 13, and the digital display push-pull force gauge 4 is slidably connected on the positioning plate 12 through the cooperation of bottom slide block 41 and bottom slide rail 13.

[0025] The various radial positioning assemblies 2 are staggered on the base plate 1, and the pressing device comprises a first rotating seat 23 fixed on the positioning block 22, a first pressing plate 24 rotatingly connected on the first rotating seat 23, a first rotating frame 25 rotatingly connected on the first rotating seat 23, and a second rotating frame 26 rotatingly connected with the first rotating frame 25 and the first pressing plate 24, the first pressing plate 24 is arranged in the second rotating frame 26, the second rotating frame 26 is arranged in the first rotating frame 25, the rotating axes of the first rotating frame 25, the second rotating frame 26 and the first pressing plate 24 are arranged in parallel with the extending direction of the first tool groove 28, the pressing block 27 is mounted on the first pressing plate 24, and the pressing block 27 is pressed in the first tool groove 28 through the rotating connection of the first rotating frame 25 and the second rotating frame 26 and the rotating connection of the second rotating frame 26 and the first pressing plate 24.

[0026] The second support 31 is provided with a second rotating seat 311 and a limiting block 312 which are integrally formed with the second support 31, the cam 32 is rotatingly connected on the second rotating seat 311, the rotating axis of the cam 32 is arranged in parallel with the base plate 1, the limiting groove is formed between the second rotating seat 311 and the limiting block 312, the limiting push block 34 and the return spring 35 are arranged in the limiting groove, the two ends of the return spring 35 are respectively applied on the limiting push block 34 and the limiting block 312, the limiting block 312 is provided with a through hole through which the positioning shaft 33 passes, the axis of the through hole is arranged in parallel with the base plate 1 and perpendicularly with the rotating axis of the cam 32, the positioning shaft 33 is slidingly arranged on the limiting block 312 through the cooperation with the through hole, the limiting inclined surface 313 which can limit the cam 32 is arranged between the second rotating seat 311 and the groove bottom of the limiting groove, the cam 32 is provided with the pressing part 321 which can drive the positioning shaft 33 to slide on the limiting block 312 when the cam 32 rotates, and the pressing inclined surface 322 which can press the limiting inclined surface 313, the second tool groove 37 on the pressing block 36 is extended through the rotation of the cam 32, the driving of the limiting push block 34 by the pressing part 321 when the cam 32 rotates, and the sliding cooperation of the positioning shaft 33 and the limiting block 312, and the limiting pressing surface 38 is pressed on the stepped surface of the tool bar.

[0027] The cam 32 is provided with the transmission shaft 314, the two ends of the transmission shaft 314 extend out of the two ends of the cam 32, the two sides of the second rotating seat 311 are provided with the rotating holes which are adapted to the various transmission shafts 314, the cam 32 is rotatingly connected on the second rotating seat 311 through the cooperation of the various transmission shafts 314 and the rotating holes, and the cam 32 is further provided with the push rod 315 which can drive the cam 32 to rotate.

[0028] The base plate 1 is provided with two oppositely arranged handles 11.

[0029] The working principle of this utility model is as follows: During use, the operator can place the base plate 1 on the external test platform by gripping the two handles 11 on the base plate 1, and fix it on the test platform by tightening screws, ensuring the levelness of the base plate 1. The radial positioning components 2 on the base plate 1 are staggered on both sides of the tool bar along the extension direction of the tool bar, thereby ensuring the radial stability of the tool bar during the test. The tool bar is placed into each of the first tool slots 28, and then the operator rotates the first rotating frame 25. The moving frame 25 drives the second rotating frame 26 and the first pressure plate 24 to rotate, thereby causing the pressure block 27 on the first pressure plate 24 to stably and firmly press the tool bar against the first tool groove 28, thus achieving radial positioning of the tool bar. Then, the operator rotates the drive cam 32 by pushing the push rod. During the rotation of the cam 32, the pressing part 321 on the cam 32 slowly presses against the limiting push block 34. The rotation of the cam 32 is limited by the cooperation of the limiting inclined surface 313 and the pressing inclined surface 322, and the cam 32 is limited by the limiting inclined surface 313 and the pressing inclined surface 322. As the pressing part 321 slowly presses against the limiting push block 34, the positioning shaft 33 gradually overcomes the elastic force applied by the return spring 35 and slides on the limiting block 312, driving the pressing block 36 on the positioning shaft 33 to axially position the tool bar. During the positioning process, the upper and lower end faces of the second cutting groove 37 press against the flat surface of the tool bar parallel to the base plate 1, and the limiting pressing surface 38 on the second cutting groove 37 presses against the stepped surface of the tool bar, thereby achieving axial positioning of the tool bar. After radial positioning is completed, the digital push-pull force gauge 4 begins to slide towards the inner core of the tool bar through the cooperation of the bottom slider 41 and the bottom slide rail 13, and drives the inner core of the tool bar to slide inside the tool bar. When the digital display value of the pressure reaches a constant value during the sliding and pushing process of the digital push-pull force gauge 4, it is the maximum pressure value between the tool bar and the inner core of the tool bar. The constant value is compared with the standard pressure range value. If the measured constant value is within the standard pressure range, it is a qualified product. If the measured constant value is greater than or less than the standard pressure range, it is a defective product.

[0030] The pressure testing device effectively solves the problem of poor gripping effect and poor performance of ultrasonic scalpel A during use due to the lack of pressure testing between the scalpel shaft and the inner core in the existing technology. By testing the pressure between the scalpel shaft and the inner core, the smoothness of use of ultrasonic scalpel A in the later stage is guaranteed, as well as its service life. By screening qualified products, the yield rate of ultrasonic scalpel A to finished products is guaranteed. The structure is ingenious, convenient and practical.

[0031] The above-described specific embodiments further specifically describe the purposes, technical solutions and beneficial effects of the present application, and it should be understood that the above-described specific embodiments are merely examples of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An ultrasonic scalpel blade pressure testing device having a base plate; characterized by: The bottom plate is slidably provided with a digital push-pull force gauge capable of pressing the inner core of the cutter bar, the bottom plate is provided with a plurality of radial positioning assemblies capable of radially positioning the cutter bar, and an axial positioning assembly capable of axially positioning the cutter bar, the radial positioning assembly comprises a first support fixed on the bottom plate, a positioning block fixed on the first support, and a presser arranged on the positioning block, the positioning block is provided with a first cutter groove for placing the cutter bar, the first cutter groove extends from one end of the positioning block to the other end of the positioning block, the cutter bar is fixedly installed in the first cutter groove through the presser, the axial positioning assembly comprises a second support fixed on the bottom plate, a cam rotatably connected to the second support, a positioning shaft slidably arranged on the second support, a limiting push block arranged at one end of the positioning shaft, and a pressing block arranged at the other end of the positioning shaft and capable of axially pressing the cutter bar, a return spring is arranged between the limiting push block and the second support, the return spring is sleeved on the positioning shaft, and the two ends of the return spring act on the second support and the limiting push block respectively, the pressing block is provided with a second cutter groove for the cutter bar to pass through, and the second cutter groove is provided with a limiting pressing surface capable of pressing and limiting the stepped surface on the cutter bar at the end away from the first support, the limiting pressing surface axially positions the cutter bar by pressing the stepped surface on the cutter bar, the presser radially positions the cutter bar by pressing the cutter bar in the first cutter groove, and the digital push-pull force gauge presses and measures the inner core of the cutter bar by sliding.

2. The ultrasonic surgical knife lever pressure testing device of claim 1, wherein: The bottom plate is provided with a positioning plate, the positioning plate is provided with a bottom slide rail, the digital push-pull force gauge is provided with a bottom sliding block matched with the bottom slide rail, and the digital push-pull force gauge is slidably connected to the positioning plate through the cooperation of the bottom sliding block and the bottom slide rail.

3. The ultrasonic surgical knife lever pressure testing device of claim 1, wherein: The radial positioning assemblies are arranged on the bottom plate in a staggered manner, the presser comprises a first rotating seat fixed on the positioning block, a first pressing plate rotatably connected to the first rotating seat, a first rotating frame rotatably connected to the first rotating seat, and a second rotating frame rotatably connected to the first rotating frame and the first pressing plate, the first pressing plate is arranged in the second rotating frame, the second rotating frame is arranged in the first rotating frame, and the rotation axes of the first rotating frame, the second rotating frame, and the first pressing plate are arranged in parallel with the extension direction of the first cutter groove, the first pressing plate is provided with a pressing block, and the pressing block is pressed in the first cutter groove through the rotation connection of the first rotating frame and the second rotating frame, and the rotation connection of the second rotating frame and the first pressing plate.

4. The ultrasonic surgical knife lever pressure testing device of claim 3, wherein: The second support is provided with a second rotating seat and a limiting block which are integrally formed with the second support, the cam is rotatably connected to the second rotating seat, the rotating axis of the cam is parallel to the bottom plate, a limiting groove is formed between the second rotating seat and the limiting block, the limiting push block and the return spring are arranged in the limiting groove, the two ends of the return spring are respectively applied to the limiting push block and the limiting block, the limiting block is provided with a through hole through which the positioning shaft passes, the axis of the through hole is parallel to the bottom plate and perpendicular to the rotating axis of the cam, the positioning shaft is slidably arranged on the limiting block through cooperation with the through hole, a limiting inclined surface for limiting the cam is arranged between the second rotating seat and the groove bottom of the limiting groove, the cam is provided with a pressing part for sliding the positioning shaft on the limiting block when the cam rotates and a pressing inclined surface for pressing the limiting inclined surface, the second knife groove on the pressing block is extended through rotation of the cam, driving of the limiting push block by the pressing part when the cam rotates and sliding cooperation of the positioning shaft and the limiting block, and the limiting pressing surface is pressed on the step surface of the tool bar.

5. The ultrasonic surgical knife lever pressure testing device of claim 4, wherein: The cam is provided with a transmission shaft, the two ends of the transmission shaft extend out of the two ends of the cam, the two sides of the second rotating seat are provided with rotating holes matched with the transmission shafts, the cam is rotatably connected to the second rotating seat through cooperation of the transmission shafts and the rotating holes, and the cam is further provided with a push rod for pushing the cam to rotate.

6. The ultrasonic surgical knife lever pressure testing device of claim 5, wherein: The bottom plate is provided with two oppositely arranged handles.

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