Positioning device for laser marking of ultrasonic scalpel handle
By setting a pressure component on the ultrasonic scalpel handle in conjunction with the limiting pivot and limiting pressure block, the problem of handle deviation due to external force during marking is solved, achieving stable positioning and precise position adjustment of the handle, thus improving marking quality and efficiency.
Patent Information
- Application Number
- CN202520340857.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The handle of an ultrasonic scalpel is easily displaced by external forces during the marking process, affecting the marking quality and efficiency.
By employing a pressing assembly in conjunction with a limiting pivot and a limiting pressure block, and by adjusting the transmission connection of the handle, transmission gear, transmission rack, limiting slider, and rotating seat, combined with magnetic attraction, the handle can be fully positioned and stably pressed.
To ensure the stability of the handle during the marking process, avoid deviation, improve marking quality and efficiency, and achieve precise adjustment of the handle position through the cooperation of the slide rail and slider.
Smart Images
Figure CN223848381U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of ultrasonic scalpel handle laser marking, especially relates to positioning device for ultrasonic scalpel handle laser marking. BACKGROUND
[0002] The ultrasonic scalpel is also called high-intensity focused ultrasonic treatment system, that is, the ultrasonic scalpel, which is a kind of thermal therapy method that can coagulate and necrose tumor in body from outside, the temperature of tissue at the focus point is suddenly increased to 60-100 DEG C through focusing the ultrasonic energy, and the tumor tissue can be destroyed and killed through the temperature, so that the purpose of killing tumor cells can be achieved, and normal tissue is not affected.The ultrasonic scalpel is also called ultrasonic cutting hemostatic knife, which is a new type of surgical equipment applied in clinical surgery in the late 80s.
[0003] When the ultrasonic scalpel is assembled and spliced, the product mark or enterprise logo needs to be marked on the product, in the prior art, the handle is placed on the work platform, a hole in the handle is connected with the rotating rod on the work platform, and locking is achieved through abutting against the limiting block, but the locking mode still has a direction freedom vacancy of the handle, in the process of positioning the handle, the handle can be deviated under the action of external force, and the quality and efficiency of product marking are affected, which is very inconvenient. SUMMARY
[0004] The utility model discloses a kind of positioning devices for ultrasonic scalpel handle laser marking, can realize the overall positioning of handle by the cooperation of abutting against component and limiting pivot and limiting pressure block, guarantee the stability of handle in the process of marking, convenient and practical.
[0005] The technical scheme for realizing the utility model is: the utility model has a work platform, the work platform is provided with an adjusting bottom plate, the adjusting bottom plate is provided with a marking platform, the adjusting bottom plate is slidably connected to the work platform, the marking platform is slidably connected to the adjusting bottom plate, and the sliding direction of the marking platform is perpendicular to the sliding direction of the adjusting bottom plate; the marking platform is provided with a limiting rotating shaft for inserting the sleeve hole on the handle and a limiting pressing block for limiting and pressing the handle, the marking platform is provided with a pressing assembly for limiting and pressing the end of the handle away from the limiting pressing block, the pressing assembly comprises an adjusting groove arranged on the side of the marking platform, an adjusting handle rotatably arranged in the adjusting groove, a transmission gear rotatably connected in the adjusting groove, a transmission rack slidably arranged in the adjusting groove and capable of being in transmission cooperation with the transmission gear, a limiting sliding groove arranged on the upper end surface of the marking platform and in communication with the adjusting groove, a limiting sliding block fixed on the transmission rack and slidably arranged in the limiting sliding groove, an adjusting rotating rod mounted on the limiting sliding block, a rotating seat rotatably arranged on the adjusting rotating rod, and a pressing plate fixed on the rotating seat and capable of pressing the handle, the adjusting handle comprises a rotating part and a rotating rod part, the rotating part is provided with a transmission gear part capable of being in transmission cooperation with the transmission gear, one end of the rotating rod part is integrally formed with the rotating part, the other end of the rotating rod part extends out of the adjusting groove, the upper end surface and the lower end surface of the adjusting groove are both provided with a locking sliding groove coaxially arranged with the rotating part, a plurality of locking magnetic blocks are arranged in the locking sliding groove, the locking magnetic blocks of each locking sliding groove are uniformly distributed in the locking sliding groove along the circumferential direction of the axis of the rotating part, the upper end and the lower end of the rotating rod part are both provided with a connecting magnetic block, the diameter of the transmission gear is greater than the diameter of the rotating part, the sliding direction of the transmission rack is parallel to the sliding direction of the adjusting bottom plate, the pressing plate is pressed on the handle through the rotation of the adjusting handle, the transmission cooperation of the transmission gear part and the transmission gear, the transmission cooperation of the transmission gear and the transmission rack, the sliding cooperation of the limiting sliding block and the limiting sliding groove, and the rotating connection of the rotating seat and the adjusting rotating rod, and is fixedly pressed on the handle through the magnetic attraction cooperation of the connecting magnetic blocks on the upper and lower end surfaces of the rotating rod part and the locking magnetic blocks.
[0006] Further, the pressing plate is provided with a pressing inclined surface for pressing the handle towards the marking platform, and the pressing inclined surface is provided with a pressing pad for preventing scratches on the handle when the pressing surface presses the handle.
[0007] Further, the work platform is provided with a plurality of first sliding rails arranged in parallel, the adjusting base is provided with a first sliding block matched with each first sliding rail, the adjusting base is slidably connected to the work platform through cooperation of the first sliding rails and the first sliding blocks, and is fixed to the work platform through the locking pieces arranged on the first sliding blocks.
[0008] Further, the adjusting groove is provided with a third sliding rail arranged in parallel with the first sliding rail, the bottom of the transmission rack is provided with a bottom sliding groove matched with the third sliding rail, the adjusting groove is further provided with a buffer pressing block capable of buffering and pressing the transmission rack, the buffer pressing block is arranged in the adjusting groove and located outside each end surface of the third sliding rail, the transmission rack is slidably connected in the adjusting groove through cooperation of the bottom sliding groove and the third sliding rail and the transmission of the transmission gear, and the transmission rack is limited after sliding through pressing of the buffer pressing block on the corresponding side.
[0009] Further, the limiting sliding block is provided with a plurality of connecting jacks uniformly distributed on the limiting sliding block along the extension direction of the third sliding rail, the adjusting rotating rod is provided with a connecting plug, and the adjusting rotating rod is installed on the limiting sliding block through cooperation of the connecting plug and the connecting jack.
[0010] Further, the rotating seat is provided with a through hole through which the adjusting rotating rod passes, the adjusting rotating rod is sleeved with a torsional spring, two ends of the torsional spring are fixedly connected with the outer wall of the adjusting rotating rod and the inner wall of the through hole respectively, and the pressing plate is pressed on the handle through cooperation of the adjusting rotating rod and the through hole and continuous force exertion of the torsional spring.
[0011] Further, the work platform is provided with a mounting rod, the mounting rod is installed with a marking laser, the marking laser is arranged on the mounting rod through the top adjusting handle, the mounting rod is provided with a scale, and the marking laser is provided with an indicating mark capable of indicating the height of the marking laser.
[0012] The utility model discloses have positive effect: (1) the utility model discloses a set of rely on pressure subassembly on the marking platform, and the rely on pressure plate is pressed on the handle through the rotation of adjusting handle, the transmission cooperation of transmission tooth part and transmission gear, the transmission cooperation of transmission gear and transmission rack, the sliding cooperation of limiting slide block and limiting slide, and the rotary connection of rotary seat and adjusting rotary rod, and is fixed on the handle through the magnetic attraction cooperation of connecting magnetic block and locking magnetic block on the upper and lower end surface of rotary rod part, on one hand, the diameter of transmission gear is set to be greater than the diameter of rotary part, can carry out the speed reduction treatment to the rotating speed of adjusting handle, avoids rotating too fast, and the inner wall of transmission rack and adjusting groove collides, on the other hand, through the rely on pressure of rely on pressure plate and handle, effectively solved the problem that the handle is affected by external force and is deviated in prior art, in addition, the cooperation of connecting magnetic block and locking magnetic block can effectively guarantee the stability of rely on pressure plate after relying on pressure with handle, and will not be affected by external force, and then lays the stable foundation for the laser marking of later period, and the structure is ingenious, convenient and practical.
[0013] (2) the utility model discloses a set of rely on pressure inclined plane on the rely on pressure plate, and set up rely on pressure pad on rely on pressure inclined plane, on one hand, the handle is pressed to the marking platform, further guarantees the stability of handle in the marking process, on the other hand, through setting rely on pressure pad, avoids the scratch of rely on pressure pad and handle in the process of relying on pressure, and is safe and practical.
[0014] (3) the utility model discloses a set of first sliding rail on the working platform, and set up first sliding block on the adjusting base plate, to guarantee the smooth sliding of adjusting base plate, set up second sliding rail on the adjusting base plate, and set up second sliding block on the marking platform, guarantee the stability and comfortable of marking platform in the sliding process, and through adjusting, can adjust the position of handle, to guarantee that the position of handle can be placed in the just below of marking laser.
[0015] (4) the utility model discloses a set of third sliding rail on the bottom of adjusting groove, guarantees the smooth sliding of transmission rack, sets up buffer pressure block to limit the stroke of transmission rack in the sliding, avoids the hard collision of transmission rack and the inner wall of adjusting groove when excessively rotating, and is safe and practical.
[0016] (5) the utility model discloses a set of connecting jack on the limiting slide block, and adjusting rotary rod sets up connecting pin, through the cooperation of connecting pin and connecting jack, the user can adjust the position of adjusting rotary rod according to the position of handle, has better adjustability and applicability.
[0017] (6) the utility model discloses a set of torsional spring on the adjusting rotary rod, and the rely on pressure plate is pressed on the handle through the cooperation of adjusting rotary rod and rotary hole and the continuous force of torsional spring, further guarantees the stable and firm rely on pressure of rely on pressure plate to handle.
[0018] (7) The utility model discloses a top adjusting handle is set up on the installing rod, controls laser laser through top adjusting handle, and shows the height of marking laser through the cooperation of indicating mark and scale, and the user can carry out rationalization adjustment to the height of marking laser according to the actual demand in the marking process, and it is convenient and practical. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to make the content of the utility model more easily be clearly understood, below according to specific embodiment and combining with attached drawing, the utility model is further detailedly explained, wherein
[0020] Figure 1 It is the overall structure schematic diagram of the positioning device for laser marking of the handle of ultrasonic operating knife in the utility model;
[0021] Figure 2 It is the enlarged view of B place in figure 1;
[0022] Figure 3 It is the overhead view of the overall structure of marking platform in the utility model;
[0023] Figure 4 It is Figure 3 the enlarged view of B place in the utility model;
[0024] Figure 5 It is the sectional view of the connecting structure of transmission rack and limit slide block in the utility model;
[0025] Figure 6 It is the overall structure schematic diagram of adjusting handle in the utility model. DETAILED DESCRIPTION
[0026] See Figures 1 to 6The utility model discloses a work platform 1 is equipped with the adjusting base plate 2 on, is equipped with the marking platform 3 on the adjusting base plate 2, the adjusting base plate 2 sliding connection is established in work platform 1, the marking platform 3 sliding connection is established in adjusting base plate 2, and the sliding direction of marking platform 3 is perpendicular with the sliding direction of adjusting base plate 2 and is arranged, be equipped with the limiting pivot 32 of the sleeve hole of handle G on marking platform 3 inserts and can be positioned and handle G is pressed to the limiting pressure block 33 of handle G, be equipped with the pressing assembly 5 of handle G on the one end of remote limiting pressure block 33 on handle G and can be positioned and pressed on handle G on marking platform 3, the pressing assembly 5 includes the adjusting groove 51 of setting in the side of marking platform 3, the adjusting handle 52 of rotation setting in adjusting groove 51, the transmission gear 53 of rotation connection in adjusting groove 51, the transmission rack 54 of sliding setting in adjusting groove 51 and can with transmission gear 53 transmission cooperation, the limiting sliding slot 56 of setting in the upper end surface of marking platform 3 and with adjusting groove 51 communication, the limiting sliding block 55 of fixing in transmission rack 54 and sliding setting in limiting sliding slot 56, the adjusting rotary lever 57 of installing on limiting sliding block 55, the rotary base 58 of rotation setting on adjusting rotary lever 57, the pressing plate 59 of fixing on rotary base 58 and can be pressed on handle G, the adjusting handle 52 includes rotary part 521 and rotary lever part 522, be equipped with the transmission gear 53 transmission cooperation of transmission gear 523 on rotary part 521, the one end of rotary lever part 522 is integrally formed with rotary part 521, the other end of rotary lever part 522 stretches out adjusting groove 51, the upper end surface and the lower end surface of adjusting groove 51 are all equipped with the locking sliding slot 513 of coaxial setting with rotary part 521, be equipped with a plurality of locking magnetic blocks 514 in locking sliding slot 513, the locking magnetic block 514 of each locking sliding slot 513 evenly distributes in locking sliding slot 513 along the circumferential direction of rotary part 521 axis, the upper end and the lower end of rotary lever part 522 are all equipped with connecting magnetic block 524, each connecting magnetic block 524 sliding setting is in corresponding locking sliding slot 513, the diameter of transmission gear 53 is greater than the diameter of rotary part 521, the sliding direction of transmission rack 54 is parallel with the sliding direction of adjusting base plate 2 and is arranged, the pressing plate 59 is pressed on handle G through the rotation of adjusting handle 52, transmission gear 53 transmission cooperation of transmission gear 523 and, transmission gear 53 transmission cooperation of transmission rack 54, the sliding cooperation of limiting sliding block 55 and limiting sliding slot 56 and the rotary connection of rotary base 58 and adjusting rotary lever 57, and is fixed and pressed on handle G through the magnetic attraction cooperation of connecting magnetic block 524 and locking magnetic block 514 on the upper end surface and the lower end surface of rotary lever part 522.
[0027] Be equipped with the pressing inclined plane 591 of handle G on the pressing plate 59 and can be pressed to marking platform 3, be equipped with the pressing pad 592 of preventing the scratch of pressing surface to handle G and press on the pressing inclined plane 591.
[0028] The working platform 1 is provided with a plurality of first sliding rails 11 arranged in parallel, the adjusting bottom plate 2 is provided with a first sliding block 21 matched with each first sliding rail 11, the adjusting bottom plate 2 is slidably connected to the working platform 1 through the cooperation of the first sliding rail 11 and the first sliding block 21, and is fixed to the working platform 1 through the locking member arranged on the first sliding block 21, the adjusting bottom plate 2 is provided with a plurality of second sliding rails 22 arranged in parallel, the extension direction of each second sliding rail 22 is arranged in parallel with the extension direction of the first sliding rail 11, the bottom of the marking platform 3 is provided with a plurality of second sliding blocks 31, and the marking platform 3 is slidably connected to the adjusting bottom plate 2 through the cooperation of each second sliding block 31 and the second sliding rail 22, and is fixed to the adjusting bottom plate 2 through the locking member arranged on the second sliding block 31.
[0029] The adjusting groove 51 is provided with a third sliding rail 511 arranged in parallel with the first sliding rail 11, the bottom of the transmission rack 54 is provided with a bottom sliding groove matched with the third sliding rail 511, the adjusting groove 51 is further provided with a buffer pressing block 512 capable of buffering and pressing the transmission rack 54, the buffer pressing block 512 is arranged in the adjusting groove 51 and located outside each end face of the third sliding rail 511, the transmission rack 54 is slidably connected in the adjusting groove 51 through the cooperation of the bottom sliding groove and the third sliding rail 511 and the transmission of the transmission gear 53, and the transmission rack 54 is limited after sliding through the pressing of the buffer pressing block 512 on the corresponding side.
[0030] The limiting sliding block 55 is provided with a plurality of connecting jacks 551 uniformly distributed on the limiting sliding block 55 along the extension direction of the third sliding rail 511, the adjusting rotating rod 57 is provided with a connecting pin 571, and the adjusting rotating rod 57 is installed on the limiting sliding block 55 through the cooperation of the connecting pin 571 and the connecting jack 551.
[0031] The rotating seat 58 is provided with a through hole 581 through which the adjusting rotating rod 57 passes, the adjusting rotating rod 57 is sleeved with a torsional spring 582, and the two ends of the torsional spring 582 are fixedly connected with the outer wall of the adjusting rotating rod 57 and the inner wall of the through hole 581 respectively, and the pressing plate 59 is pressed on the handle G through the cooperation of the adjusting rotating rod 57 and the through hole and the continuous force of the torsional spring 582.
[0032] The working platform 1 is provided with a mounting rod 4, the mounting rod 4 is provided with a marking laser 42, the marking laser 42 is arranged on the mounting rod 4 through a top adjusting handle 41, the mounting rod 4 is provided with a scale 43, and the marking laser 42 is provided with an indicating mark 44 capable of indicating the height of the marking laser 42.
[0033] The utility model discloses a working principle: the utility model discloses in the process of using, the operator can place handle G on the marking platform 3 first, and the sleeve hole on handle G is sleeved into the limiting pivot 32, and the limiting pressing block 33 is pressed to handle G, then the degree of freedom of handle G is limited through the pressing assembly 5, and in the process of pressing handle G, the pressing plate 59 is pressed on handle G through the rotation of adjusting handle 52, the transmission cooperation of transmission tooth part 523 and transmission gear 53, the transmission cooperation of transmission gear 53 and transmission rack 54, the sliding cooperation of limiting sliding block 55 and limiting sliding slot 56 and the rotation connection of rotating seat 58 and adjusting rotating rod 57, and is fixed on handle G through the magnetic attraction cooperation of connecting magnetic block 524 on the upper and lower end surfaces of rotating rod part 522 and locking magnetic block 514.
[0034] The diameter of transmission gear 53 is greater than the diameter of rotating part 521, so that the rotation speed of adjusting handle 52 can be reduced, in the process of transmission, the operator rotates rotating rod part 522, rotating rod part 522 drives rotating part 521 to rotate, rotating part 521 drives transmission gear 53 to rotate through the cooperation of transmission tooth part 523 and transmission gear 53, transmission gear 53 drives transmission rack 54 to slide, transmission rack 54 drives limiting sliding block 55 to slide in limiting sliding slot 56, the operator can adjust the plug-in connection of connecting plug 571 on rotating rod 57 and corresponding connecting insertion hole 551 according to demand, so that various different size handle G is adapted, and the pressing plate 59 is pressed on handle G through the cooperation of adjusting rotating rod 57 and rotating hole and the continuous force of torsional spring 582.
[0035] Then the adjusting base plate 2 is slidably connected to the working platform 1 through the cooperation of the first sliding rail 11 and the first sliding block 21, and is fixed to the working platform 1 through the locking member arranged on the first sliding block 21, and the marking platform is slidably connected to the adjusting base plate 2 through the cooperation of the second sliding block 31 and the second sliding rail 22, and is fixed to the adjusting base plate 2 through the locking member arranged on the second sliding block 31, so as to adjust the position of the handle G left and right and front and back, and then adjust the height position of the marking laser 42 through the top adjusting handle 41, and then mark the handle G, effectively solving the problem of deviation in the handle G marking process in the prior art.
[0036] The above-described specific embodiments further illustrate the purpose, technical solutions and advantages of the utility model, and it should be understood that the above-described specific embodiments are only for the utility model and do not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A positioning device for laser marking of an ultrasonic scalpel handle, comprising a work platform, an adjusting base plate is arranged on the work platform, a marking platform is arranged on the adjusting base plate, the adjusting base plate is slidably connected to the work platform, and the marking platform is slidably connected to the adjusting base plate, and the sliding direction of the marking platform is arranged perpendicularly to the sliding direction of the adjusting base plate; characterized in that: The marking platform is provided with a limiting rotating shaft for inserting the sleeve hole on the handle and a limiting pressing block for limiting and pressing the handle, the marking platform is provided with a pressing assembly for positioning and pressing the end of the handle away from the limiting pressing block, the pressing assembly comprises an adjusting groove arranged on the side of the marking platform, an adjusting handle rotatably arranged in the adjusting groove, a transmission gear rotatably connected in the adjusting groove, a transmission rack slidably arranged in the adjusting groove and in transmission cooperation with the transmission gear, a limiting sliding groove arranged on the upper end surface of the marking platform and in communication with the adjusting groove, a limiting sliding block fixed on the transmission rack and slidably arranged in the limiting sliding groove, an adjusting rotating rod mounted on the limiting sliding block, a rotating seat rotatably arranged on the adjusting rotating rod, and a pressing plate fixed on the rotating seat and capable of pressing the handle, the adjusting handle comprises a rotating part and a rotating rod part, the rotating part is provided with a transmission gear part in transmission cooperation with the transmission gear, one end of the rotating rod part is integrally formed with the rotating part, and the other end of the rotating rod part extends out of the adjusting groove, the upper end surface and the lower end surface of the adjusting groove are both provided with a locking sliding groove coaxially arranged with the rotating part, a plurality of locking magnetic blocks are arranged in the locking sliding groove, the locking magnetic blocks of each locking sliding groove are uniformly distributed in the locking sliding groove along the circumferential direction of the rotating part axis, the upper end and the lower end of the rotating rod part are both provided with a connecting magnetic block, the diameter of the transmission gear is greater than the diameter of the rotating part, the sliding direction of the transmission rack is parallel to the sliding direction of the adjusting base plate, the pressing plate is pressed on the handle through the rotation of the adjusting handle, the transmission cooperation of the transmission gear part and the transmission gear, the transmission cooperation of the transmission gear and the transmission rack, the sliding cooperation of the limiting sliding block and the limiting sliding groove, and the rotating connection of the rotating seat and the adjusting rotating rod, and is fixedly pressed on the handle through the magnetic attraction cooperation of the connecting magnetic blocks on the upper and lower end surfaces of the rotating rod part and the locking magnetic blocks. 2. The positioning device for laser marking of the handle of an ultrasonic scalpel according to claim 1, characterized in that: The pressing plate is provided with a pressing inclined surface for pressing the handle towards the marking platform, and the pressing inclined surface is provided with a pressing pad for preventing scratches on the handle when the pressing surface presses the handle.
3. The positioning device for laser marking of the handle of an ultrasonic surgical knife according to claim 2, characterized in that: The working platform is provided with a plurality of first sliding rails arranged in parallel, the adjusting base plate is provided with a first sliding block matched with each first sliding rail, the adjusting base plate is slidably connected to the working platform through the cooperation of the first sliding rail and the first sliding block, and is fixed to the working platform through the locking member arranged on the first sliding block, the adjusting base plate is provided with a plurality of second sliding rails arranged in parallel, the extension direction of each second sliding rail is parallel to the extension direction of the first sliding rail, the bottom of the marking platform is provided with a plurality of second sliding blocks, and the marking platform is slidably connected to the adjusting base plate through the cooperation of each second sliding block and second sliding rail, and is fixed to the adjusting base plate through the locking member arranged on the second sliding block.
4. The positioning device for laser marking of the handle of an ultrasonic surgical knife according to claim 3, characterized in that: The adjusting groove is provided with a third sliding rail parallel to the first sliding rail, the bottom of the transmission rack is provided with a bottom sliding groove matched with the third sliding rail, the adjusting groove is further provided with a buffer pressing block capable of buffering and pressing the transmission rack, the buffer pressing block is arranged in the adjusting groove and located outside each end surface of the third sliding rail, the transmission rack is slidably connected in the adjusting groove through the cooperation of the bottom sliding groove and the third sliding rail and the transmission of the transmission gear, and the transmission rack is limited after sliding through the pressing of the buffer pressing block on the corresponding side.
5. The ultrasonic scalpel handle laser marking positioning device of claim 4, wherein: The limiting sliding block is provided with a plurality of connecting jacks uniformly distributed on the limiting sliding block along the extension direction of the third sliding rail, the adjusting rotating rod is provided with a connecting plug, and the adjusting rotating rod is installed on the limiting sliding block through the cooperation of the connecting plug and the connecting jack.
6. The positioning device for laser marking of the handle of an ultrasonic surgical knife according to claim 5, characterized in that: The rotating seat is provided with a through hole through which the adjusting rotating rod passes, a torsional spring is sleeved on the adjusting rotating rod, and the two ends of the torsional spring are fixedly connected with the outer wall of the adjusting rotating rod and the inner wall of the through hole, respectively, and the pressing plate is pressed on the handle through the cooperation of the adjusting rotating rod and the through hole and the continuous force of the torsional spring.
7. The ultrasonic scalpel handle laser marking positioning device of claim 6, wherein: The working platform is provided with a mounting rod, the mounting rod is provided with a marking laser, the marking laser is arranged on the mounting rod through a top adjusting handle, the mounting rod is provided with a scale, and the marking laser is provided with an indicating mark capable of indicating the height of the marking laser.