Device capable of limiting use times of ultrasonic scalpel
By using the current transformer and microcontroller in the ultrasonic scalpel to record the number of uses and turn off the device when the preset value is reached, the problem of breaking caused by excessive use of the ultrasonic scalpel is solved, achieving safe use and durability of the device promote.
Patent Information
- Application Number
- CN202420341302.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The ultrasonic scalpel may have a risk of instantaneous breakage after more than a certain number of uses, resulting in equipment failure.
A hardware architecture including an ultrasonic scalpel, a main console control board, a current transformer, a microcontroller and a memory is designed to detect the working current through the current transformer. The microcontroller records the number of usages and sends a signal when the preset value is reached. Turn off the ultrasound scalpel and limit its use.
It effectively avoids the risk of breakage caused by long-term use of ultrasonic scalpels, and limits the number of uses. The hardware architecture is simple, low cost and easy to implement.
Smart Images
Figure CN222150099U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of ultrasonic surgical knives, and in particular to a device capable of limiting the number of times an ultrasonic surgical knives are used. Background Art
[0002] Ultrasonic Surgical Knife is a medical device that uses ultrasonic energy for surgical cutting. It generates ultrasonic energy by converting electrical energy into high-frequency mechanical vibrations and transmitting the vibrations to the blade. This ultrasonic energy can cause molecular resonance and friction of the material when it contacts the tissue, thereby achieving fast and precise cutting.
[0003] Compared with traditional scalpels or electric collimator knives, ultrasonic surgical knives have many advantages. First, there is almost no risk of blood vessel coagulation and tissue carbonization when ultrasonic surgical knives cut tissue, making the surgical area clearer and reducing the possibility of bleeding and damage to surrounding tissues; second, ultrasonic surgical knives can provide more precise cutting, allowing doctors to better control the surgical process; in addition, ultrasonic surgical knives can also be used for other surgical operations such as tissue suturing, hemostasis and removal of foreign bodies.
[0004] Since the blade of an ultrasonic scalpel is mainly made of materials such as stainless steel, long-term use will cause blade fatigue, reducing its strength and durability. Therefore, after an ultrasonic scalpel is used for a certain number of times, the ultrasonic scalpel may be at risk of instantaneous breakage. Therefore, those skilled in the art are in urgent need of finding a method to limit the number of times an ultrasonic scalpel can be used. Utility Model Content
[0005] To this end, the present application provides a device that can limit the number of times an ultrasonic surgical knife is used, so as to solve the problem in the prior art that an ultrasonic surgical knife may break instantly after being used more than a certain number of times.
[0006] In order to achieve the above objectives, this application provides the following technical solutions:
[0007] A device capable of limiting the number of times an ultrasonic surgical knife is used, comprising an ultrasonic surgical knife, a host main control board, a current transformer, a microcontroller and a memory;
[0008] The output end of the host main control board is electrically connected to the input end of the ultrasonic surgical knife, the output end of the ultrasonic surgical knife is electrically connected to the input end of the host main control board, the primary side of the current transformer is connected in series between the output end of the ultrasonic surgical knife and the input end of the host main control board, the secondary side of the current transformer is electrically connected to the input end of the microcontroller, and the output end of the microcontroller is electrically connected to the memory and the input end of the host main control board;
[0009] Among them, the current transformer is used to detect the working current of the ultrasonic surgical knife. The microcontroller records the number of times the ultrasonic surgical knife is used according to the working current and saves the number of times used in the memory. When the number of times used reaches a preset value, the microcontroller will send a signal to the host main control board to turn off the ultrasonic surgical knife.
[0010] Furthermore, it also includes a balancing bridge, which is connected in series on the secondary side of the current transformer.
[0011] Furthermore, it also includes a first resistor, which is connected in series between the secondary side of the current transformer and the microcontroller.
[0012] Furthermore, it also includes a capacitor, which is connected in parallel between the secondary side of the current transformer and the first resistor.
[0013] Furthermore, it also includes a second resistor, which is connected in parallel between the first resistor and the microcontroller.
[0014] Furthermore, it also includes a diode, which is connected in series between the memory and the host main control board.
[0015] Furthermore, the output end of the microcontroller is electrically connected to the memory and the input end of the host main control board through a serial bus.
[0016] Furthermore, the memory is an electrically erasable programmable read-only memory.
[0017] Compared with the prior art, this application has at least the following beneficial effects:
[0018] The present application provides a device capable of limiting the number of times an ultrasonic scalpel is used. By configuring a hardware architecture including an ultrasonic scalpel, a host main control board, a current transformer, a microcontroller and a memory, the current transformer is used to detect the working current of the ultrasonic scalpel. The microcontroller records the number of times the ultrasonic scalpel is used according to the working current and stores the number of times the ultrasonic scalpel is used in the memory. When the number of times the ultrasonic scalpel is used reaches a preset value, the microcontroller sends a signal to the host main control board to turn off the ultrasonic scalpel, thereby limiting the number of times the ultrasonic scalpel is used and avoiding the risk of instantaneous breakage of the ultrasonic scalpel after exceeding a certain number of uses. The entire hardware architecture has a simple structure, low cost and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components) based on the technical concepts and exemplary drawings disclosed in the present application.
[0020] Figure 1 A schematic diagram of the structure of a device capable of limiting the number of times an ultrasonic surgical knife is used provided in this application;
[0021] Figure 2 A circuit schematic diagram of a device capable of limiting the number of times an ultrasonic surgical knife is used provided in this application.
[0022] Description of reference numerals:
[0023] 1. Ultrasonic scalpel; 2. Host main control board; 3. Current transformer; 4. Microcontroller; 5. Memory. DETAILED DESCRIPTION
[0024] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.
[0025] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).
[0026] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to indicate the general relative position relationship for the purpose of intuitive understanding by referring to the drawings, and are not absolute limitations on the position relationship in the actual product.
[0027] See also Figure 1 and Figure 2 The present application provides a device capable of limiting the number of times an ultrasonic surgical knife is used, comprising an ultrasonic surgical knife 1, a host main control board 2, a current transformer 3, a microcontroller (MCU) 4 and a memory 5.
[0028] The output end of the host main control board 2 is electrically connected to the input end of the ultrasonic surgical knife 1, the output end of the ultrasonic surgical knife 1 is electrically connected to the input end of the host main control board 2, the primary side of the current transformer 3 is connected in series between the output end of the ultrasonic surgical knife 1 and the input end of the host main control board 2, the secondary side of the current transformer 3 is electrically connected to the input end of the microcontroller 4, and the output end of the microcontroller 4 is electrically connected to the memory 5 and the input end of the host main control board 2.
[0029] Among them, the current transformer 3 is used to detect the working current of the ultrasonic surgical knife 1. The microcontroller 4 records the number of times the ultrasonic surgical knife 1 is used according to the working current and saves the number of times used in the memory 5. When the number of times used reaches a preset value, the microcontroller 4 will send a signal to the host main control board 2 to turn off the ultrasonic surgical knife 1.
[0030] Specific:
[0031] The ultrasonic scalpel 1 is a main tool for performing surgery, which acts on tissues by emitting ultrasonic waves, thereby achieving the purposes of cutting, coagulation, etc.
[0032] The host main control board 2 is the core of the entire system and is responsible for receiving signals from the current transformer 3 and adjusting the working state of the ultrasonic surgical knife 1 according to the requirements of the microcontroller 4 .
[0033] The function of the current transformer 3 is to detect the working current of the ultrasonic surgical knife 1. Its primary side is connected in series between the output end of the ultrasonic surgical knife 1 and the input end of the host main control board 2, and its secondary side is electrically connected to the input end of the microcontroller 4. When the ultrasonic surgical knife 1 is working, the current transformer 3 can sense the change of the current and transmit the change of the current to the microcontroller 4.
[0034] The microcontroller 4 is the intelligent core of the entire device, responsible for processing the current signal from the current transformer 3 and limiting the number of uses of the ultrasonic surgical knife 1 according to a preset algorithm. Once the number of uses reaches a preset value, the microcontroller 4 will send a signal to the host main control board 2 to shut down the ultrasonic surgical knife 1. It should be noted that the algorithm preset in the microcontroller 4 is an existing conventional algorithm, and this application does not involve improvements to the algorithm.
[0035] The memory 5 is used to store the usage count information of the ultrasonic surgical knife 1. Each time the ultrasonic surgical knife 1 is used, the microcontroller 4 will record the usage count and save it in the memory 5. When the usage count reaches a preset value, the microcontroller 4 will send a signal to the host main control board 2 to shut down the ultrasonic surgical knife 1.
[0036] In summary, the entire device detects the working current of the ultrasonic surgical knife 1 through the current transformer 3, and counts the number of uses through the microcontroller 4. Once the number of uses reaches a preset value, the microcontroller 4 will send a signal to the host main control board 2 to turn off the ultrasonic surgical knife 1, thereby limiting the number of uses of the ultrasonic surgical knife 1.
[0037] See also Figure 2 The device capable of limiting the number of times an ultrasonic surgical knife is used provided by the present application also includes a balancing bridge D1 composed of four diodes. The balancing bridge D1 is connected in series on the secondary side of the current transformer (T) 3 to protect the current transformer T from being damaged due to excessive current. When a short circuit or an unexpectedly high current occurs on the secondary side of the current transformer T, the balancing bridge D1 will react quickly, and by turning on and off the diodes, the current will be limited to a range that the current transformer T can withstand, thereby protecting the current transformer T from damage. At the same time, the balancing bridge D1 can also eliminate the voltage loss caused by the impedance of the secondary coil, thereby ensuring the transmission quality of electric energy.
[0038] The device capable of limiting the number of times an ultrasonic surgical knife is used provided by the present application also includes a first resistor R1, a capacitor C and a second resistor R2, wherein the first resistor R1 is connected in series between the secondary side of the current transformer T and the microcontroller 4, and is used to limit the impact current, adjust the voltage and current ratio, provide additional thermal protection and improve the measurement accuracy, thereby protecting the microcontroller 4 and improving the performance of the entire device; the capacitor C is connected in parallel between the secondary side of the current transformer T and the first resistor R1, and is used for filtering. When there are unstable factors such as power supply fluctuations and electromagnetic interference in the circuit, these fluctuations will be converted into high-frequency noise. Through the filtering effect of the capacitor C, the influence of these noises on the circuit can be effectively reduced, thereby improving the stability and performance of the circuit; the second resistor R2 is connected in parallel between the first resistor R1 and the microcontroller 4, and is used to balance the current and suppress electromagnetic interference to ensure the normal operation of the microcontroller 4.
[0039] The device capable of limiting the number of times an ultrasonic surgical knife is used provided by the present application also includes a diode D2, which is connected in series between the memory 5 and the host main control board 2 to protect the host main control board 2 from being damaged by the reverse voltage generated by the memory 5. Because the memory 5 may generate a certain electrostatic voltage during use, if this voltage acts in reverse on the host main control board 2, it may cause damage to it. The diode D2 has unidirectional conductivity, and when the electrostatic voltage generated by the memory 5 acts in reverse, the diode D2 will not be turned on, thereby protecting the host main control board 2 from damage. At the same time, this design also helps to prevent static electricity on the host main control board 2 from damaging the memory 5.
[0040] In the device capable of limiting the number of times an ultrasonic surgical knife is used, the output end of the microcontroller 4 is electrically connected to the memory 5 and the input end of the host main control board 2 through two serial buses. Using a serial bus connection can reduce costs, save space, reduce power consumption, simplify design, improve anti-interference ability, and facilitate expansion.
[0041] The memory 5 in the device capable of limiting the number of times an ultrasonic surgical knife is used provided by the present application is preferably an electrically erasable programmable read-only memory. Electrically Erasable Programmable Read-Only Memory (EEPROM) is a memory with programmable and erasable functions. Compared with traditional read-only memory (ROM) and programmable read-only memory (PROM), EEPROM has the advantages of programmable and erasable, low power consumption, non-volatility, large capacity, low voltage operation, and good compatibility.
[0042] The present application provides a device capable of limiting the number of times an ultrasonic scalpel is used, which achieves a limit on the number of times an ultrasonic scalpel is used, thereby avoiding the risk of an ultrasonic scalpel breaking instantly after exceeding a certain number of uses. The entire hardware device has a simple structure, low cost, and is easy to implement.
[0043] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.
Claims
1. A device capable of limiting the number of times an ultrasonic surgical knife is used, characterized in that: It includes ultrasonic surgical knife, host main control board, current transformer, microcontroller and memory; The output end of the host main control board is electrically connected to the input end of the ultrasonic surgical knife, the output end of the ultrasonic surgical knife is electrically connected to the input end of the host main control board, the primary side of the current transformer is connected in series between the output end of the ultrasonic surgical knife and the input end of the host main control board, the secondary side of the current transformer is electrically connected to the input end of the microcontroller, and the output end of the microcontroller is electrically connected to the memory and the input end of the host main control board; Among them, the current transformer is used to detect the working current of the ultrasonic surgical knife. The microcontroller records the number of times the ultrasonic surgical knife is used according to the working current and saves the number of uses in the memory. When the number of uses reaches a preset value, the microcontroller will send a signal to the host main control board to turn off the ultrasonic surgical knife.
2. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 1, characterized in that: It also includes a balancing bridge connected in series on the secondary side of the current transformer.
3. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 1, characterized in that: The present invention further includes a first resistor connected in series between the secondary side of the current transformer and the microcontroller.
4. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 3, characterized in that: It also includes a capacitor connected in parallel between the secondary side of the current transformer and the first resistor.
5. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 3, characterized in that: The device further includes a second resistor connected in parallel between the first resistor and the microcontroller.
6. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 1, characterized in that: It also includes a diode, which is connected in series between the memory and the host main control board.
7. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 1, characterized in that: The output end of the microcontroller is electrically connected to the memory and the input end of the host main control board through a serial bus.
8. The device capable of limiting the number of times an ultrasonic surgical knife is used according to claim 1, characterized in that: The memory is an electrically erasable programmable read-only memory.