A pressure sensitive ultrasonic knife

Abstract

The utility model provides a kind of pressure sensing ultrasonic knife, including shell, transducer, blade, pressure sensor, control module, power module, transducer is slidably arranged in shell, first stop and second stop are provided in shell, transducer is limited between first position, second position sliding by first stop, second stop, pressure sensor is sheet type pressure sensor and is obliquely arranged in the rear end of transducer, when transducer is at first position, pressure sensor and the rear end of transducer are in abutment, for detecting pressure, control module adjusts the output power of transducer according to the pressure detected by the pressure sensor, realize the use state of ultrasonic knife, cutting material hardness and resistance are detected, ultrasonic knife is automatically adjusted start-stop and output power, improve the use convenience, practicality of ultrasonic knife, and save electric energy.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic cutting devices, specifically to the field of pressure-sensitive ultrasonic scalpels. Background Technology

[0002] Ultrasonic cutting blades, as efficient and precise cutting tools, are widely used in fields such as 3D printing support removal and composite material processing. Traditional ultrasonic cutting equipment generally adopts a split structure, with the drive module separate from the cutting blade body, resulting in bulky size and inconvenient portability. While existing integrated ultrasonic cutting blades have solved the portability problem, they still have significant drawbacks: firstly, they lack intelligent control functions, requiring users to frequently manually turn the device on and off, which is cumbersome and prone to power waste and overheating due to forgetting to turn it off; secondly, the energy output is fixed, unable to automatically adjust the power according to the hardness and resistance of the material being cut, leading to insufficient efficiency when cutting harder materials and energy waste when cutting softer materials. To address these issues, there is an urgent need for an ultrasonic cutting device that can intelligently sense the usage status and automatically adjust the output power. Utility Model Content

[0003] Therefore, one objective of this invention is to provide a pressure-sensitive ultrasonic scalpel that can detect the ultrasonic scalpel's usage status, the hardness and resistance of the material being cut in real time, thereby automatically adjusting the ultrasonic scalpel's start / stop and output power.

[0004] This utility model provides a pressure-sensitive ultrasonic scalpel, comprising:

[0005] The housing contains a first stop and a second stop.

[0006] The transducer is disposed within the housing and is restricted to sliding between a first position and a second position by the first stop and the second stop;

[0007] The blade is connected to the transducer;

[0008] The pressure sensor is a thin-film pressure sensor, which is tilted and disposed at the rear end of the transducer. When the transducer is in the first position, the pressure sensor abuts against the rear end of the transducer to detect pressure.

[0009] The control module is electrically connected to the pressure sensor and the transducer, and is used to adjust the output power of the transducer according to the pressure detected by the pressure sensor.

[0010] The power module provides electrical power to the pressure-sensitive ultrasonic scalpel.

[0011] Furthermore, an inclined mounting groove is provided inside the housing, and the rear end of the pressure sensor is fixed in the mounting groove.

[0012] Furthermore, a first guide seat and a second guide seat are respectively provided on the opposing sides of the first stop and the second stop, and a first sliding stage and a second sliding stage are provided on the corresponding positions of the transducer, with the first guide seat and the first sliding stage being in surface contact, and the second guide seat and the second sliding stage being in surface contact.

[0013] Furthermore, the transducer is provided with a racetrack-shaped anti-rotation platform at the first stop, and the first stop fits with the anti-rotation platform to prevent the transducer from rotating.

[0014] Furthermore, two guide grooves are symmetrically arranged on the first sliding stage, and two guide keys are correspondingly arranged on the first guide seat, with the guide keys embedded in the guide grooves.

[0015] Furthermore, the pressure sensor has a symmetrical structure, with mounting holes and positioning grooves at both ends.

[0016] Furthermore, the blade is a one-piece blade that is threadedly connected to the transducer.

[0017] Furthermore, a nut cap is provided at the front end of the housing, which is threadedly connected to the housing, and the blade extends out of the nut cap.

[0018] Furthermore, the housing includes an upper housing and a lower housing, and the upper housing and the lower housing are provided with a plurality of mutually coupled buckles and buckle grooves.

[0019] Furthermore, it also includes a display screen, which is electrically connected to the control module and is used to display the status information of the pressure-sensitive ultrasonic scalpel.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the transducer inside the ultrasonic scalpel to be slidable and setting a pressure sensor at the rear end of the transducer to detect the pressure on the blade in real time, the usage status of the ultrasonic scalpel, the hardness and resistance of the cutting material can be detected, the start and stop of the ultrasonic scalpel and the output power can be automatically adjusted, the ease of use and practicality of the ultrasonic scalpel can be improved, and energy can be saved. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the external shape of the pressure-sensitive ultrasonic scalpel provided in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the pressure-sensitive ultrasonic scalpel provided in this embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of the pressure-sensitive ultrasonic scalpel provided in this embodiment of the present invention.

[0025] Reference numerals: Housing 1, First stop 11, First channel 110, Second stop 12, Second channel 120, First guide seat 13, Guide key 130, Second guide seat 14, Mounting groove 15, Positioning post 16, Blade 2, Transducer 3, First sliding stage 31, Guide groove 310, Second sliding stage 32, Anti-rotation stage 33, Pressure sensor 4, Positioning hole 41, Mounting hole 42, Control module 5, Switch button 50, Power module 6, Nut cover 7, Display screen 8. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 As shown, the pressure-sensitive ultrasonic scalpel includes a housing 1, a blade 2, a display screen 8, a switch button 50, and a nut cap 7. In this embodiment of the invention, the end of the blade facing the pressure-sensitive ultrasonic scalpel is defined as the front end, and the end facing the other end is defined as the rear end. A charging port is also provided on the end face of the rear end of the pressure-sensitive ultrasonic scalpel.

[0028] like Figure 2 As shown, the housing 1 of the pressure-sensitive ultrasonic scalpel is a long cylindrical structure, divided into an upper housing and a lower housing. The upper and lower housings are connected and secured by snap-fit ​​devices and slots, and bolt posts and holes. In some embodiments of this invention, the number of snap-fit ​​devices and slots, and the number of bolt posts and holes can be adjusted appropriately; alternatively, only snap-fit ​​devices or only bolt posts and holes may be used. Threaded connectors are provided at the front ends of the upper and lower housings. After the upper and lower housings are connected, a nut cap 7 is screwed into the threaded connector. The top of the nut cap 7 is conical, and both the nut cap 7 and the threaded connector have openings at their centers for the transducer 3 and the blade 2, which are housed within the housing 1, to extend out.

[0029] Inside the housing 1, from front to rear, are arranged a transducer 3, a pressure sensor 4, a control module 5, and a power module 6. The transducer 3 can slide axially within the housing 1, and is limited to a first position and a second position by a first stop 11 and a second stop 12 respectively. The first stop 11 has a first channel 110 at its center, through which the front end of the transducer 3 passes and connects to the blade 2. The transducer 3 also has a first sliding platform 31, which is larger than the first channel 110. Thus, the first stop 11 limits the sliding of the transducer 3 towards the front end to the first position. The second stop 12 has a second channel 120 through which the pressure sensor 4 passes and abuts against the rear end face of the transducer 3.

[0030] Preferably, the rear end of the first stop 11 and the front end of the second stop 12 are respectively provided with a first guide seat 13 and a second guide seat 14. The transducer 3 is correspondingly provided with a first sliding stage 31 and a second sliding stage 32. During the sliding stroke of the transducer 3 between the first position and the second position, the first sliding stage 31 and the first guide seat 13, and the second sliding stage 32 and the second guide seat 14 are always in surface contact, thereby achieving radial limiting of the transducer 3 and ensuring that the transducer 3 can slide stably along the axis of the housing 1, avoiding swaying during sliding.

[0031] In this embodiment, the first sliding stage 31 is a cylinder, and the first guide seat 13 is an annular structure, with the outer cylindrical surface of the first sliding stage 31 abutting against the inner cylindrical surface of the first guide seat 13. The second sliding stage 32 is also a cylinder, and to reduce the overall weight, the second guide seat 14 is configured as two annular seats, upper and lower. In some embodiments of this utility model, the first guide seat 13 can also be several annular seats distributed in a circumferential dot matrix pattern to further reduce the overall weight.

[0032] Preferably, the transducer 3 is provided with an anti-rotation platform 33 at the first stop 11, that is, at the point where it passes through the first channel 110. In this embodiment, the anti-rotation platform 33 and the first sliding platform 31 are an integral structure. The cross-section of the anti-rotation platform 33 is racetrack-shaped, and the cross-section of the first channel 110 is equivalent to the cross-section of the anti-rotation platform 33. During the sliding stroke of the transducer 3, the first stop 11 and the anti-rotation platform 33 fit together to limit the rotation of the transducer 3, preventing the blade 2 from rotating with the transducer 3 when cutting with the blade 2.

[0033] Optionally, in some embodiments of this utility model, in order to further enhance the stability of the transducer 3 sliding, two guide grooves 310 are symmetrically arranged on the first sliding table 31. In this embodiment, since the first sliding table 31 and the anti-rotation table 33 are integrated, the two guide grooves 310 penetrate the first sliding table 31 and the anti-rotation table 33. Two guide keys 130 are correspondingly arranged on the first guide seat 13. The length of the guide key 130 is the same as that of the first guide seat 13, and the width is equivalent to the width of the guide groove 310.

[0034] In some embodiments of this utility model, only a guide key 130 positioned between the first and second positions and a guide groove 310 axially penetrating the transducer 3 may be provided. The stable sliding of the transducer 3 and the prevention of rotation of the transducer 3 are achieved by the engagement of the guide key 130 and the guide groove 310. Furthermore, the guide groove 310 is non-penetrating, and the guide key 130 is also set to an appropriate length. The transducer 3 can be limited in the first and second positions by the cooperation of the two ends of the guide groove 310 with the guide key 130. Preferably, the guide groove 310 and the guide key 130 are arranged in two symmetrical sets, or they can be arranged in a matrix around the axis of the housing 1.

[0035] A pressure sensor 4, which is a thin-film pressure sensor, is fixedly mounted at the rear end of the transducer 3. A mounting groove 15 is provided inside the housing 1, with the mounting groove 15 at a certain angle to the axis of the housing 1. The rear end of the pressure sensor 4 is inserted into the mounting groove 15. A positioning post 16 is provided at the rear end of the mounting groove 15. A threaded hole is provided on the mounting groove 15. A mounting hole 42 and a positioning hole 41 are provided at the rear end of the pressure sensor 4. The pressure sensor 4 is fixed in the mounting groove 15 using bolts. Figure 3 As shown, the second stop 12 has a second channel 120, and the front end of the pressure sensor 4 passes through the second channel 120 at an angle and abuts against the rear end of the transducer 3. When the transducer 3 is in the first position, the front end of the pressure sensor 4 is already abutting against the rear end of the transducer 3. Since the mounting groove 15 has a certain angle, the pressure sensor 4 installed in the mounting groove 15 also has a certain angle with the axis of the housing 1. Thus, when the pressure generated by the object being cut on the blade 2 pushes the transducer 3 to slide from the first position to the second position, the pressure sensor 4 can generate a corresponding elastic deformation in real time, thereby detecting the pressure in real time.

[0036] In some embodiments of this utility model, the pressure sensor 4 has a symmetrical structure, with symmetrical mounting holes 42 and positioning holes 41 at both the front and rear ends. The pressure sensor 4 does not require a specific orientation when installed, which facilitates installation.

[0037] A control module 5 is located after the pressure sensor 4. The control module 5 is electrically connected to the pressure sensor 4 and the transducer 3, and is used to adjust the output power of the transducer 3 according to the pressure detected by the pressure sensor 4. A power module 6 is located after the control module 5, and the power module 6 provides power to the pressure-sensitive ultrasonic scalpel. A charging interface is located at the rear end of the pressure-sensitive ultrasonic scalpel, and the power module 6 can be charged by connecting an external charging cable.

[0038] When preparing to use a pressure-sensitive ultrasonic scalpel to cut an object, the transducer 3 is in the first position, and the control module 5 adjusts the output power of the transducer 3 to a lower level or no power at all. When the blade 2 contacts the object being cut, the object exerts pressure on the blade 2, pushing the transducer 3 connected to the blade 2 to slide to the second position. The pressure sensor 4 is squeezed by the transducer 3 and undergoes elastic deformation, i.e., it detects an increase in pressure. The control module 5 increases the output power of the transducer 3 according to the increase in pressure. When the transducer 3 is pushed to the second position, it is supported by the second stop 12 and no longer squeezes the pressure sensor 4. This is the upper limit of the pressure detection value of the pressure-sensitive ultrasonic scalpel. When the pressure of the object being cut on the blade 2 decreases, the transducer 3 slides back to the first position under the action of the elastic restoring force of the pressure sensor 4. At the same time, the pressure sensor 4 recovers some deformation, i.e., it detects a decrease in pressure. The control module 5 reduces the output power of the transducer 3 according to the decrease in pressure, or even reduces it to no output. That is, the pressure-sensitive ultrasonic scalpel stops outputting when it leaves the object being cut, thus saving energy and reducing heat generation.

[0039] In some embodiments of this utility model, the control module 5 also includes a switch button 50 exposed in the housing 1 to realize the overall electrical switching control of the pressure-sensitive ultrasonic scalpel; the pressure-sensitive ultrasonic scalpel also includes a display screen 8 exposed in the housing 1, which is electrically connected to the control module 5 to display status information such as the working power and remaining power of the pressure-sensitive ultrasonic scalpel.

[0040] Preferably, the blade 2 is an integral blade that is connected to the front end of the transducer 3 by a thread, which has better stability compared to the clamp-type blade structure.

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0042] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0043] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pressure-sensitive ultrasonic scalpel, characterized in that, include: The housing contains a first stop and a second stop. The transducer is disposed within the housing and is restricted to sliding between a first position and a second position by the first stop and the second stop; The blade is connected to the transducer; The pressure sensor is a thin-film pressure sensor, which is tilted and disposed at the rear end of the transducer. When the transducer is in the first position, the pressure sensor abuts against the rear end of the transducer to detect pressure. The control module is electrically connected to the pressure sensor and the transducer, and is used to adjust the output power of the transducer according to the pressure detected by the pressure sensor. The power module provides electrical power to the pressure-sensitive ultrasonic scalpel.

2. The pressure-sensitive ultrasonic scalpel according to claim 1, characterized in that, An inclined mounting groove is provided inside the housing, and the rear end of the pressure sensor is fixed in the mounting groove.

3. The pressure-sensitive ultrasonic scalpel according to claim 1, characterized in that, The first stop and the second stop are respectively provided with a first guide seat and a second guide seat on their opposite sides. The transducer is provided with a first sliding stage and a second sliding stage at corresponding positions. The first guide seat and the first sliding stage are in surface contact, and the second guide seat and the second sliding stage are in surface contact.

4. The pressure-sensitive ultrasonic scalpel according to claim 3, characterized in that, The transducer is provided with a racetrack-shaped anti-rotation platform at the first stop, and the first stop fits with the anti-rotation platform to prevent the transducer from rotating.

5. The pressure-sensitive ultrasonic scalpel according to claim 4, characterized in that, Two guide grooves are symmetrically arranged on the first sliding stage, and two guide keys are correspondingly arranged on the first guide seat, with the guide keys embedded in the guide grooves.

6. The pressure-sensitive ultrasonic scalpel according to claim 5, characterized in that, The pressure sensor has a symmetrical structure, with mounting holes and positioning grooves at both ends.

7. The pressure-sensitive ultrasonic scalpel according to any one of claims 1 to 6, characterized in that, The blade is a one-piece blade and is threadedly connected to the transducer.

8. The pressure-sensitive ultrasonic scalpel according to claim 7, characterized in that, The front end of the housing is provided with a nut cap, which is threadedly connected to the housing, and the blade extends out of the nut cap.

9. The pressure-sensitive ultrasonic scalpel according to claim 1, characterized in that, The housing includes an upper housing and a lower housing, and the upper housing and the lower housing are provided with a plurality of mutually coupled buckles and buckle slots.

10. The pressure-sensitive ultrasonic scalpel according to claim 1, characterized in that, It also includes a display screen, which is electrically connected to the control module and is used to display the status information of the pressure-sensitive ultrasonic scalpel.

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