Tool bit pressure testing mechanism for ultrasonic scalpel

Abstract

The utility model relates to a tool bit pressure testing mechanism for an ultrasonic scalpel, which is provided with a bottom plate, a positioning plate is arranged on the bottom plate, an adjusting sliding rail is arranged on the bottom plate, an adjusting sliding block is arranged on the adjusting sliding rail, and the adjusting sliding block is arranged on the adjusting sliding rail in a sliding manner and is fixed through a locking piece; a servo electric cylinder and a driving rod are arranged on the bottom plate, a data collector is arranged on the bottom plate, a film sensor is inserted into the data collector, an adjusting assembly is arranged on the adjusting sliding rail and comprises an adjusting plate, a first driving part, a lifting support, a second driving part and a positioning frame, and the sliding direction of the adjusting plate is perpendicular to the extending direction of the adjusting sliding rail. The first driving piece is arranged on the adjusting sliding block, the second driving piece is arranged on the adjusting plate, an opening facing the positioning block is formed in the positioning frame, a penetrating groove allowing the film sensor to penetrate through is further formed in the positioning frame, and one end of the film sensor penetrates through the penetrating groove and then is connected with a scalpel head of the ultrasonic scalpel. The device is ingenious in structure, convenient and practical.

Description

Technical Field

[0001] The utility model relates to the field of ultrasonic scalpel pressure testing, and particularly relates to a tool tip pressure testing mechanism for an ultrasonic scalpel. Background Technique

[0002] An ultrasonic scalpel is a medical device that uses ultrasonic energy for surgical cutting and coagulation. It generates energy through high-frequency vibration, vaporizes the water in tissues, and denatures and solidifies proteins, thereby achieving the effects of cutting and coagulation. The main components of an ultrasonic scalpel include a main unit, a transducer handle, an ultrasonic tool tip, and a foot pedal. It is widely used in various surgical operations in clinical practice, such as neurosurgery, general surgery, urology, thoracic surgery, gynecology, etc., and is particularly suitable for minimally invasive surgeries. The advantages of an ultrasonic scalpel include good hemostatic effect, precise cutting, high safety, fast postoperative recovery, and little damage to surrounding tissues. Its use in surgery can reduce damage to surrounding tissues, reduce intraoperative bleeding, and improve the accuracy and safety of the surgery. In addition, the ultrasonic scalpel does not generate an electric current passing through the body, so conductive tissue damage will not occur.

[0003] Before using an ultrasonic scalpel, it is necessary to detect the pressure of the tool tip of the scalpel. During the detection process, the tool tip of the ultrasonic scalpel needs to be in contact with the thin film sensor and then pressured for detection. However, in the prior art, during the docking process of the tool tip and the thin film sensor, it is easy to occur misalignment deviation between the tool tip of the scalpel and the thin film sensor, resulting in the tool tip not being in contact with the thin film sensor or the tool tip and the thin film sensor being misaligned in contact, thus affecting the accuracy of the tool tip pressure detection and also affecting the later use effect of the scalpel, which is very inconvenient. Summary of the Invention

[0004] The purpose of the utility model is to provide a tool tip pressure testing mechanism for an ultrasonic scalpel, with a clever structure, which can adjust the horizontal and height positions of the thin film sensor according to the specific position of the tool tip of the ultrasonic scalpel, thereby ensuring the precise docking of the tool tip and the thin film sensor, and further ensuring the precise detection of the tool tip pressure, which is efficient and practical.

[0005] The technical solution for achieving the object of the present utility model is as follows: The present utility model has a bottom plate, on which there is a positioning plate for positioning an ultrasonic scalpel. There is an adjustment slide rail on the bottom plate, and an adjustment slider is arranged on the adjustment slide rail. The adjustment slider is slidably arranged on the adjustment slide rail and fixed by a locking member. On the bottom plate, there is a servo electric cylinder that can be driven under the control of an external control unit, and a driving rod that slides under the drive of the servo electric cylinder and can act on the ultrasonic scalpel. There is a data collector on the bottom plate, and a thin film sensor is plugged into the data collector. There is an adjustment assembly on the adjustment slide rail for adjusting and positioning the other end of the thin film sensor. The adjustment assembly includes an adjustment plate, a first driving member for driving the adjustment plate to slide on the adjustment slider, a lifting bracket, a second driving member for driving the lifting bracket to lift on the adjustment plate, and a positioning frame fixed on the lifting bracket for positioning one end of the thin film sensor. The sliding direction of the adjustment plate is perpendicular to the extension direction of the adjustment slide rail. The first driving member is arranged on the adjustment slider, and the second driving member is arranged on the adjustment plate. The positioning frame has an opening facing the positioning block, and there is also a through groove on the positioning frame for the thin film sensor to pass through. One end of the thin film sensor passes through the through groove and is connected to the knife head of the ultrasonic scalpel.

[0006] Further, the above-mentioned first driving member is a driving screw. The adjustment slider is provided with a first rotation groove for the driving screw to rotate. The axis of the first rotation groove is perpendicular to the extension direction of the adjustment slide rail. The driving screw includes a first screw portion and a first rotation portion. The first screw portion is rotatably arranged in the first rotation groove, and the first rotation portion is arranged outside the adjustment slider. The upper end surface of the adjustment slider is provided with a first chute communicating with the first rotation groove and second chutes arranged in parallel on both sides of the first chute. The bottom of the adjustment plate is provided with a first slider and second sliders arranged on both sides of the first slider. The first slider passes through the first chute and extends into the first rotation groove. The first slider is provided with a threaded hole adapted to the first screw portion. After the first slider extends into the first rotation groove, it is slidably arranged in the first chute through the cooperation of the threaded hole and the first screw portion. Each second slider is slidably arranged in the corresponding second chute. The adjustment plate is slidably arranged on the adjustment slider through the cooperation of the first screw portion and the threaded hole, the cooperation of the first slider and the first chute, and the cooperation of each second slider and the second chute under the drive of the first rotation portion.

[0007] Further, the second driving member is a driving rotating rod, the driving rotating rod is arranged parallel to the driving screw rod, the adjusting plate is provided with a second rotating groove arranged parallel to the first rotating groove, the driving rotating rod includes a driving portion and a second rotating portion, the driving portion is rotatably arranged in the second rotating groove, the second rotating portion is arranged outside the adjusting plate, a driving gear is fixedly arranged on the driving portion, a transmission screw rod is arranged on the adjusting plate, the transmission screw rod includes a second screw rod portion and a transmission portion, the transmission portion is rotatably arranged on the adjusting plate, one end of the transmission portion extends into the second rotating groove, a driven gear capable of being in transmission cooperation with the driving gear is arranged at the end of the transmission portion extending into the second rotating groove, the axes of the driving gear and the driven gear are vertically arranged, a transmission screw hole adapted to the second screw rod portion is arranged at the bottom of the lifting bracket, a positioning hole parallel to the axis of the transmission screw hole is further arranged at the bottom of the lifting bracket, a guide rod corresponding to the positioning hole is arranged on the adjusting plate, and the lifting bracket is arranged on the adjusting plate in a lifting manner through the transmission cooperation of the driving gear and the driven gear, the thread cooperation of the second screw rod portion and the transmission screw hole, and the cooperation of the guide rod and the positioning hole under the drive of the driving rotating rod.

[0008] Further, the positioning frame includes a first frame plate and a second frame plate, the lifting bracket is fixed on the first frame plate, the through groove is arranged on the first frame plate, a plurality of positioning columns are arranged on the first frame plate, mounting holes adapted to the positioning columns are arranged on the second frame plate, magnetic blocks are arranged on each positioning column, magnets adapted to the magnetic blocks are arranged in each mounting hole, and the first frame plate and the second frame plate are detachably fixedly connected through the insertion cooperation of the positioning columns and the mounting holes and the magnetic attraction cooperation of the magnetic blocks and the magnets.

[0009] Further, a first support block is arranged on the bottom plate, a second support block parallel to the first support block is arranged on the adjusting plate, and support grooves capable of supporting the knife rod of the ultrasonic scalpel are arranged on both the first support block and the second support block.

[0010] Further, a plurality of positioning blocks are arranged on the positioning plate, the positioning blocks are detachably fixed on the positioning plate through locking members, a pressing inclined surface is arranged on each positioning block, and each positioning block positions the handle of the ultrasonic scalpel through the pressing inclined surface.

[0011] Further, a pressure digital display is fixedly arranged at one end of the driving rod far from the servo electric cylinder.

[0012] Further, handles arranged oppositely are arranged on the bottom plate.

[0013] The utility model has positive effects: (1) The utility model controls the servo cylinder through an external control unit, thereby ensuring accurate force application to the ultrasonic scalpel, and uses an adjustment component to accurately dock the thin film sensor on the positioning frame and the tool tip of the ultrasonic scalpel. During the docking process, a first driving member is used to adjust the horizontal position of the adjustment plate and the positioning frame on the adjustment plate, and a second driving member is used to adjust the height of the positioning frame on the adjustment plate. Through the height adjustment and horizontal adjustment of the positioning frame, the problem of inaccurate docking between the tool tip and the thin film sensor in the prior art is effectively solved. On the one hand, the thin film sensor on the positioning frame can be accurately docked with the tool tip of the scalpel through horizontal and vertical adjustments. On the other hand, it can be applied to various different ultrasonic scalpels, with good adjustability and applicability, ingenious structure, high efficiency and convenience.

[0014] (2) In the utility model, the first driving member is set as a driving screw rod, and the first rotating part drives the first slider and the adjustment plate on the first slider to slide through the cooperation of the first screw rod part and the screw hole. During the sliding process of the adjustment plate, the cooperation of each second slider and the second sliding groove ensures the stability of the adjustment plate during the sliding process. The positioning frame is horizontally adjusted through the cooperation of the adjustment slider and the adjustment slide rail, and the cooperation of the adjustment plate and the adjustment slider, thereby ensuring the accuracy and smoothness of the adjustment of the horizontal position of the thin film sensor.

[0015] (3) In the utility model, the second driving member is set as a driving rotating rod, and the positioning frame is height-adjusted through the transmission cooperation between the driving gear on the driving rotating rod and the driven gear on the transmission part, and the thread cooperation between the second screw rod part and the transmission screw hole, thereby accurately docking the thin film sensor with the tool tip, and ensuring that the detection position of the thin film sensor is docked with the force application position of the tool tip, further ensuring the accuracy of the pressure detection of the tool tip, which is highly efficient and practical.

[0016] (4) In the utility model, the positioning frame is set as the connection of a first frame plate and a second frame plate. The first frame plate and the second frame plate are cooperated through positioning columns and mounting holes, and the magnets on the positioning columns and the magnets in the mounting holes. On the one hand, it ensures the quick installation and disassembly of the second frame plate and the first frame plate. On the other hand, it is also convenient for the quick installation and disassembly of the thin film sensor, and at the same time ensures the tightness of the connection between the positioning frame and the thin film sensor, which is highly efficient and convenient.

[0017] (5) In the utility model, a first support block and a second support block are provided, and support grooves are provided on the first support block and the second support block to ensure the stability of the tool rod of the ultrasonic scalpel during the detection process, thereby ensuring the stability of the tool tip, which is highly efficient and convenient.

[0018] (6) By providing a plurality of positioning blocks on the positioning plate, each positioning block is detachably fixed on the positioning plate through a locking member, and by pressing the ultrasonic scalpel against each pressing inclined surface, the stability of the handle of the ultrasonic scalpel is ensured, which is stable and practical.

[0019] (7) By providing a pressure digital display on the drive rod, the mechanical loss between the servo cylinder and the ultrasonic scalpel is obtained by the difference between the value set by the external control unit and the digital display value of the pressure digital display, and the pressure value of the tool head is displayed through the digital display value of the pressure digital display and the pressure value of the tool head displayed on the data collector, so as to more accurately and efficiently obtain the pressure value on the tool head of the ultrasonic scalpel, which is efficient and practical. Brief Description of the Drawings

[0020] In order to make the content of the present invention easier to be clearly understood, the following further details the present invention according to specific embodiments in conjunction with the drawings, where

[0021] Figure 1 is the overall structural schematic diagram of the tool head pressure testing mechanism for the ultrasonic scalpel in the present invention;

[0022] Figure 2 is the front view of the overall structure of the adjustment assembly in the present invention;

[0023] Figure 3 is the top view of the overall structure of the adjustment slider in the present invention;

[0024] Figure 4 is the cross-sectional view of the overall structure of the adjustment slider in the present invention;

[0025] Figure 5 is the cross-sectional view of the connection between the adjustment plate and the lifting bracket in the present invention;

[0026] Figure 6 is the exploded view of the overall structure of the positioning frame in the present invention;

[0027] Figure 7 is the cross-sectional view of the exploded structure of the first frame plate and the second frame plate in the present invention. Detailed Description of the Embodiments

[0028] See Figures 1 to 7, the utility model has a bottom plate 1, a positioning plate 11 for positioning the ultrasonic scalpel is arranged on the bottom plate 1, an adjusting slide rail 12 is arranged on the bottom plate 1, an adjusting slider 15 is arranged on the adjusting slide rail 12, and the adjusting slider 15 is slidably arranged on the adjusting slide rail 12 and fixed by a locking member; a servo cylinder 4 that can be driven under the control of an external control unit and a driving rod 41 that slides under the drive of the servo cylinder 4 and can act on the ultrasonic scalpel are arranged on the bottom plate 1, a data collector 2 is arranged on the bottom plate 1, a thin film sensor 3 is plugged on the data collector 2, and an adjusting assembly 5 for adjusting and positioning the other end of the thin film sensor 3 is arranged on the adjusting slide rail 12. The adjusting assembly 5 includes an adjusting plate 51, a first driving member for driving the adjusting plate 51 to slide on the adjusting slider 15, a lifting bracket 52, a second driving member for driving the lifting bracket 52 to lift on the adjusting plate 51, and a positioning frame 53 fixed on the lifting bracket 52 and for positioning one end of the thin film sensor 3. The sliding direction of the adjusting plate 51 is perpendicular to the extending direction of the adjusting slide rail 12. The first driving member is arranged on the adjusting slider 15, and the second driving member is arranged on the adjusting plate 51. The positioning frame 53 is provided with an opening facing the positioning block, and the positioning frame 53 is further provided with a through groove 530 through which the thin film sensor 3 can pass. One end of the thin film sensor 3 passes through the through groove 530 and is connected to the knife head of the ultrasonic scalpel.

[0029] The first driving member is a driving screw 54. The adjusting slider 15 is provided with a first rotating groove 150 for the driving screw 54 to rotate. The axis of the first rotating groove 150 is perpendicular to the extending direction of the adjusting slide rail 12. The driving screw 54 includes a first screw portion 542 and a first rotating portion 541. The first screw portion 542 is rotatably arranged in the first rotating groove 150, and the first rotating portion 541 is arranged outside the adjusting slider 15. The upper end surface of the adjusting slider 15 is provided with a first sliding groove 151 communicating with the first rotating groove 150 and second sliding grooves 152 arranged in parallel on both sides of the first sliding groove 151. The bottom of the adjusting plate 51 is provided with a first slider 511 and second sliders 512 arranged on both sides of the first slider 511. The first slider 511 passes through the first sliding groove 151 and extends into the first rotating groove 150. The first slider 511 is provided with a threaded hole adapted to the first screw portion 542. After the first slider 511 extends into the first rotating groove 150, it is slidably arranged in the first sliding groove 151 through the cooperation of the threaded hole and the first screw portion 542. Each second slider 512 is slidably arranged in the corresponding second sliding groove 152. The adjusting plate 51 is slidably arranged on the adjusting slider 15 under the drive of the first rotating portion 541 through the cooperation of the first screw portion 542 and the threaded hole, the cooperation of the first slider 511 and the first sliding groove 151, and the cooperation of each second slider 512 and the second sliding groove 152.

[0030] The second driving member is a driving rotating rod 55, the driving rotating rod 55 is arranged parallel to the driving screw rod 54, the adjusting plate 51 is provided with a second rotating groove 513 arranged parallel to the first rotating groove 150, the driving rotating rod 55 includes a driving portion 552 and a second rotating portion 551, the driving portion 552 is rotatably arranged in the second rotating groove 513, the second rotating portion 551 is arranged outside the adjusting plate 51, a driving gear 514 is fixedly arranged on the driving portion 552, a transmission screw rod 56 is arranged on the adjusting plate 51, the transmission screw rod 56 includes a second screw rod portion 562 and a transmission portion 561, the transmission portion 561 is rotatably arranged on the adjusting plate 51, one end of the transmission portion 561 extends into the second rotating groove 513, a driven gear 515 capable of being in transmission cooperation with the driving gear 514 is arranged at the end of the transmission portion 561 extending into the second rotating groove 513, the axes of the driving gear 514 and the driven gear 515 are vertically arranged, a transmission screw hole 521 adapted to the second screw rod portion 562 is arranged at the bottom of the lifting bracket 52, a positioning hole 522 parallel to the axis of the transmission screw hole 521 is further arranged at the bottom of the lifting bracket 52, a guide rod 516 corresponding to the positioning hole 522 is arranged on the adjusting plate 51, and the lifting bracket 52 is arranged on the adjusting plate 51 in a lifting manner through the transmission cooperation of the driving gear 514 and the driven gear 515, the thread cooperation of the second screw rod portion 562 and the transmission screw hole 521, and the cooperation of the guide rod 516 and the positioning hole 522 under the drive of the driving rotating rod 55.

[0031] The positioning frame 53 includes a first frame plate 531 and a second frame plate 532, the lifting bracket 52 is fixed on the first frame plate 531, the through groove 530 is arranged on the first frame plate 531, scale values are arranged on the second frame plate 532, a plurality of positioning columns 533 are arranged on the first frame plate 531, mounting holes 535 adapted to the respective positioning columns 533 are arranged on the second frame plate 532, magnetic blocks 534 are arranged on the respective positioning columns 533, magnets 536 adapted to the magnetic blocks 534 are arranged in the respective mounting holes 535, and the first frame plate 531 and the second frame plate 532 are detachably and fixedly connected through the insertion cooperation of the respective positioning columns 533 and the mounting holes 535 and the magnetic attraction cooperation of the respective magnetic blocks 534 and the magnets 536.

[0032] A first support block 14 is arranged on the bottom plate 1, a second support block 16 parallel to the first support block 14 is arranged on the adjusting plate 51, and support grooves capable of supporting the rod of the ultrasonic scalpel are arranged on both the first support block 14 and the second support block 16.

[0033] A plurality of positioning blocks 13 are provided on the positioning plate 11. The positioning blocks 13 are detachably fixed on the positioning plate 11 through locking members. A pressing inclined surface 131 is provided on each positioning block 13, and the handle of the ultrasonic scalpel is positioned by each positioning block 13 through the pressing inclined surface 131.

[0034] A pressure digital display 42 is fixedly provided at one end of the driving rod 41 away from the servo cylinder 4.

[0035] A pair of handles 10 are provided on the bottom plate 1 in a relative manner.

[0036] The working principle of the present utility model: During the use of the present utility model, the ultrasonic scalpel is fixed on the positioning plate 11, and the handle of the ultrasonic scalpel is fixed by the positioning blocks 13 on the positioning plate 11. After the handle is fixed, the guide rod 516 on the ultrasonic scalpel is fixed in the support grooves on the first support block 14 and the second support block 16. One end of the thin film sensor 3 is inserted into the data collector 2, and the other end of the thin film sensor 3 passes through the through groove 530 and then starts to dock with the blade head of the ultrasonic scalpel. During the docking process, in order to solve the problem of misalignment or inability to dock between the thin film sensor 3 and the blade head in the prior art, the adjustment slider 15 is used to adjust the front and rear positions of the positioning frame 53 and the thin film sensor 3 on the positioning frame 53 through the cooperation with the adjustment slide rail 12. The adjustment plate 51 is slidably arranged on the adjustment slider 15 under the drive of the first rotating part 541 through the cooperation of the first screw part 542 and the screw hole, the cooperation of the first slider 511 and the first chute 151, and the cooperation of each second slider 512 and the second chute 152. The lifting bracket 52 is arranged to be lifted on the adjustment plate 51 under the drive of the drive rotating rod 55 through the transmission cooperation of the drive gear 514 and the driven gear 515, the thread cooperation of the second screw part 562 and the transmission screw hole 521, and the cooperation of the guide rod 516 and the positioning hole 522. The thin film sensor 3 is accurately docked with the blade head by adjusting the front, rear, left, and right positions of the positioning frame 53. After the docking is completed, the external control unit sends a driving signal to the servo cylinder 4, and the driving rod 41 on the servo cylinder 4 and the pressure digital display 42 on the driving rod 41 press against the driving end of the ultrasonic scalpel, thereby driving the blade head to apply pressure to the thin film sensor 3. The pressure difference between the pressure value set by the external control unit and the pressure of the pressure digital display 42 is used to obtain the mechanical loss of the servo cylinder 4 and the driving rod 41. The difference between the pressure of the pressure digital display 42 and the pressure of the blade head obtained by the data collector 2 can be used to obtain the mechanical loss of the ultrasonic scalpel. By using the initial set value, each mechanical loss value, and the pressure value obtained by the data collector 2, the accurate pressure value of the blade head of the ultrasonic scalpel can be obtained. The structure is ingenious, convenient and practical.

[0037] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A blade pressure testing mechanism for an ultrasonic surgical knife, comprising a bottom plate, a positioning plate for positioning the ultrasonic surgical knife, an adjustment rail, an adjustment slider, and the adjustment slider is slidably arranged on the adjustment rail and fixed by a locking member; characterized in that: The bottom plate is provided with a servo electric cylinder that can be driven under the control of an external control unit, and a driving rod that slides under the drive of the servo electric cylinder and can act on the ultrasonic scalpel. The bottom plate is provided with a data collector, and a thin film sensor is plugged into the data collector. The adjusting slide rail is provided with an adjusting component that can adjust and position the other end of the thin film sensor. The adjusting component includes an adjusting plate, a first driving member that can drive the adjusting plate to slide on the adjusting slider, a lifting bracket, a second driving member that can drive the lifting bracket to lift on the adjusting plate, and a positioning frame that is fixed on the lifting bracket and can position one end of the thin film sensor. The sliding direction of the adjusting plate is perpendicular to the extension direction of the adjusting slide rail. The first driving member is arranged on the adjusting slider, and the second driving member is arranged on the adjusting plate. The positioning frame is provided with an opening facing the positioning block. The positioning frame is also provided with a through groove for the thin film sensor to pass through. One end of the thin film sensor is connected to the blade head of the ultrasonic scalpel after passing through the through groove.

2. The ultrasonic surgical knife blade pressure testing mechanism according to claim 1, characterized in that: The first driving member is a driving screw, and the adjusting block is provided with a first rotating groove for driving the screw to rotate, and the axis of the first rotating groove is arranged perpendicular to the extending direction of the adjusting slide rail. The driving screw comprises a first screw portion and a first rotating portion, the first screw portion is rotatably arranged in the first rotating groove, the first rotating portion is arranged outside the adjusting slide rail, the upper end surface of the adjusting slide rail is provided with a first sliding groove connected to the first rotating groove, and a second sliding groove is arranged parallel to both sides of the first sliding groove, and the bottom of the adjusting plate is provided with a first slider and a second slider arranged on both sides of the first slider, the first slider passes through the first sliding groove and extends into the first rotating groove, the first slider is provided with a screw hole that can be adapted to the first screw portion, and the first slider extends into the first rotating groove and is slidably arranged in the first sliding groove through the cooperation of the screw hole and the first screw portion, and each second slider is slidably arranged in the corresponding second sliding groove, and the adjusting plate is slidably arranged on the adjusting slider through the cooperation of the first screw portion and the screw hole, the cooperation of the first slider and the first sliding groove, and the cooperation of each second slider and the second sliding groove under the driving of the first rotating portion.

3. The ultrasonic surgical knife blade pressure testing mechanism according to claim 2, characterized in that: The second driving member is a driving rotating rod, which is arranged in parallel with the driving screw rod. The adjusting plate is provided with a second rotating groove which is arranged in parallel with the first rotating groove. The driving rotating rod includes a driving part and a second rotating part. The driving part is rotatably arranged in the second rotating groove. The second rotating part is arranged on the outer side of the adjusting plate. A driving gear is fixedly arranged on the driving part. A transmission screw is arranged on the adjusting plate. The transmission screw includes a second screw rod part and a transmission part. The transmission part is rotatably arranged on the adjusting plate. One end of the transmission part extends into the second rotating groove. One end of the transmission part extending into the second rotating groove is provided with a driven gear which can be matched with the driving gear. The axes of the driving gear and the driven gear are arranged vertically. A transmission screw hole which is adapted to the second screw rod part is provided at the bottom of the lifting bracket. A positioning hole which is arranged in parallel with the axis of the transmission screw hole is also provided at the bottom of the lifting bracket. A guide rod corresponding to the positioning hole is provided on the adjusting plate. The lifting bracket is driven by the driving rotating rod and is lifted and lowered on the adjusting plate through the transmission matching of the driving gear and the driven gear, the thread matching of the second screw rod part and the transmission screw hole, and the matching lifting and lowering of the guide rod and the positioning hole.

4. The ultrasonic surgical knife blade pressure testing mechanism according to claim 1, characterized in that: The positioning frame includes a first frame plate and a second frame plate, the lifting bracket is fixed on the first frame plate, the through groove is set on the first frame plate, the first frame plate is provided with a plurality of positioning posts, the second frame plate is provided with mounting holes adapted to each positioning post, each positioning post is provided with a magnetic block, each mounting hole is provided with a magnet adapted to the magnetic block, the first frame plate and the second frame plate are detachably fixedly connected by plug-in cooperation between each positioning post and the mounting hole, and magnetic attraction cooperation between each magnetic block and the magnet.

5. The ultrasonic surgical knife blade pressure testing mechanism according to claim 4, characterized in that: The bottom plate is provided with a first support block, the adjustment plate is provided with a second support block arranged parallel to the first support block, and the first support block and the second support block are both provided with support grooves for supporting the blade rod of the ultrasonic surgical knife.

6. The ultrasonic surgical knife blade pressure testing mechanism according to claim 1, characterized in that: The positioning plate is provided with a plurality of positioning blocks, which are detachably fixed on the positioning plate via locking members, and each positioning block is provided with a pressing inclined surface, and each positioning block positions the handle of the ultrasonic surgical knife via the pressing inclined surface.

7. The ultrasonic surgical knife blade pressure testing mechanism according to claim 1, characterized in that: A pressure digital display is fixedly arranged on one end of the driving rod away from the servo electric cylinder.

8. The ultrasonic surgical knife blade pressure testing mechanism according to claim 1, characterized in that: The bottom plate is provided with handles which are arranged opposite to each other.

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