CN201048979Y - High-frequency electric knife - Google Patents
High-frequency electric knife Download PDFInfo
- Publication number
- CN201048979Y CN201048979Y CNU2007200964676U CN200720096467U CN201048979Y CN 201048979 Y CN201048979 Y CN 201048979Y CN U2007200964676 U CNU2007200964676 U CN U2007200964676U CN 200720096467 U CN200720096467 U CN 200720096467U CN 201048979 Y CN201048979 Y CN 201048979Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- control
- control system
- output
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a high-frequency electrotome for direct cutting and hemostasis of human tissues. A main control system is arranged inside a main machine of the electrotome, and the main control system comprises a microprocessor control system, and a power output circuit, a signal tracking sampling circuit, an electrotome pen control circuit, a neutral electrode detecting circuit, a smog adsorption control circuit and a high voltage direct current power supply circuit which are connected with the microprocessor control system respectively; the microprocessor control system comprises a main control processor, a panel management processor, an assistant control processor and a waveform generator. The high-frequency electrotome is an electronic surgery appliance for replacing mechanical scalpel and used for tissue cutting, and the utility model realizes separation and solidification of organism tissues by heating tissues with a high frequency current generated from a tip of an effective electrode contacting with the human body, thereby the purposes of cutting and hemostasis are realized and at the same time toxic and harmful gases generated during an operation are adsorbed and treated.
Description
Technical field
This utility model relates to the medical apparatus and instruments field, more particularly, relate to a kind of to tissue directly cut, hemostatic high frequency surgery electric knife.
Background technology
Along with the development and the clinical requirement of medical skill, corresponding development has been arranged based on the compound electrosurgery unit of high frequency surgical equipment.High frequency surgical instrument is a kind of electrosurgery unit that mechanical scalpel is organized cutting that replaces.Because high frequency electric knife is that high frequency electric is directly acted on tissue, so its security requirement is very strict.
The utility model content
Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, provide a kind of to tissue directly cut, the hemostatic high frequency electric knife.
This utility model high frequency electric knife, be achieved by following technical proposals, in the described electric knife main frame master control system is set, master control system comprise microprocessor control system and respectively with power output circuit, signal trace sample circuit, pencil control circuit, the neutral electrode testing circuit of microprocessor control system UNICOM, smog absorption control circuit, high voltage direct current source circuit;
The signal trace sample circuit comprises that the output high pressure detects, output voltage detects, output current detection circuit;
Microprocessor control system comprises main processing controller, panel management processor, auxiliary control processor, waveform generator; The signal of each circuit is controlled in the detection of main processing controller reception neutral electrode, handle of a knife control, panel and keypad, temperature control, sound control, foot switch control, the remote control writing of indictments, appeals, etc., and main processing controller provides control command to auxiliary control processor; Auxilliary processor controls provides control command to waveform generator, and auxilliary processor controls receives the signal that high-voltage power voltage is controlled, the output high pressure detects, output voltage detects, output current detects, the state relay is controlled, the range relay is controlled each circuit.
Pencil control circuit described in the utility model comprises successively writing of indictments, appeals, etc. power supply, comparator and the isolator that connects, and simple and easy pulse generator that writing of indictments, appeals, etc. power supply is made of phase inverter and control gate circuit and single tube class A amplifier are formed.
Neutral electrode testing circuit described in the utility model is made up of the voltage controlled oscillator, signal sampling amplifier and the A/D signal adapter that connect successively.
Smog absorption control circuit described in the utility model is made up of the D/A signal converter, electric machine controller, motor power and the induced-draught electric motor that connect successively.
This utility model high frequency electric knife is a kind of electrosurgery unit that mechanical scalpel is organized cutting that replaces, when it contacts with human body by the most advanced and sophisticated high frequency electric that produces of active electrode tissue is heated, realization is to the separation of when injected organism tissue and solidify, thereby play cutting and hemostatic purpose, poisonous, the harmful gas that will produce in meanwhile will performing the operation absorb, handle.
This utility model satisfies the requirement of national standard (GB9706.4 and GB9706.1) fully, mainly comprise: the metal chassis reliable ground of exporting the electric knife that suspends fully, it is withstand voltage to bear 1500V between network source and the casing, high-frequency leakage current is lower than 150mA, the high frequency electric knife frequency is between 0.4MHz-0.8MHz, output is less than 400W, and stable.
This utility model master control system changes according to tissue density, and The real time measure cuts and organizes required minimum power.Power range system is adjusted energy output immediately and is satisfied the operation needs under the instruction of master control system.Entire work process all is the automatic adjustment of carrying out under CPU control, and need not artificial adjusting.Run into any tissue no matter guaranteed the doctor in operation, this high frequency electric knife all can keep good smooth cutting to coagulate effect, causes minimum thereby tissue injury is fallen, and is convenient to the postoperative wound healing.
Sampling of this utility model signal trace and negative plate detection system are the peculiar neutral electrode security protection systems of this utility model, thoroughly stopped in the operation process patient's neutral electrode to be sticked the scald at position, the safety of this guard system has obtained confirmation in clinical.
This utility model is embedded in smog absorption machine control function on the control panel of electric knife main frame; form the pattern of interlock, when making things convenient for medical personnel to operate, with the iatrogenic pollution of operation smog generation; remove efficiently, thereby protected patient and medical personnel's health effectively.
Description of drawings
Fig. 1 is this utility model master control system block diagram;
Fig. 2 is this utility model microprocessor control system block diagram;
Fig. 3 is this utility model keyboard and display floater circuit block diagram.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described further.
This utility model high frequency electric knife is made up of with adnexaes such as the pencil that is connected with main frame the corresponding interface, neutral electrode, bipolar tweezer, foot switch, smog scavenging systems main frame, master control system is set in the main frame, send command signal by master control system, accept feedback signal, adjust control instructions such as output.
As shown in Figure 1, master control system comprise microprocessor control system and respectively with power output circuit, signal trace sample circuit, pencil control circuit, the negative plate testing circuit of microprocessor control system UNICOM, smog absorption control circuit, high voltage direct current source circuit.Wherein the signal trace sample circuit comprises that the output high pressure detects, output voltage detects, output current detection circuit.
Microprocessor control system comprises main processing controller, panel management processor, auxiliary control processor, waveform generator, between each processor with the communication of STD bus mode, with interrupt response mode and hardware circuit interactive information.As shown in Figure 2, the signal of each circuit is controlled in the detection of main processing controller reception neutral electrode, handle of a knife control, panel and keypad, temperature control, sound control, foot switch control, the remote control writing of indictments, appeals, etc., and main processing controller provides control command to auxiliary control processor; Auxilliary processor controls provides control command to waveform generator, and the signal waveform of difference in functionality is sent in the requirement that waveform generator is set by the user; Auxilliary processor controls receives the signal that high-voltage power voltage is controlled, the output high pressure detects, output voltage detects, output current detects, the state relay is controlled, the range relay is controlled each circuit.Various states when the main effect of assistant controller is exactly real-time collecting work, and in time adjust control, to reach the index request of output.
Main processing controller, auxilliary processor controls, adopt well behaved ATMEGA162 single chip microcomputer, has working stability, reliable, and can work in the above operating frequency of 28M, the processing time is short, and speed is fast, capacity of resisting disturbance is strong, main processing controller is responsible for control each divisional processing device of commander and is required the fast part of response speed, to realize real-time monitoring, respond fast and to handle as Master Control Center.In order to make The whole control system safety, reliable, native system has adopted the management of two ultra-large digital processing chip EPM7128, SLC84-15 realizations to digital quantity, have that speed is fast, in the control sets, capacity of resisting disturbance is strong, various analogue signals are finished conversion by high-precision AD1674 and AD7216.
Below the major control circuit is done detailed description.
Keyboard and display floater circuit:
In order to save the time of host CPU, show and keyboard is managed by independent CPU, and the setting value of each function that echo is set, be transferred to the foundation of host CPU with serial communication mode as control.As shown in Figure 3, the digital display tubes of 12 LED have sealing in and go out and 74LS595 that matter is deposited function realizes having the characteristics stable, that capacity of resisting disturbance is strong that show by 12.12 function keys are directly managed by the POP2 mouth of CPU, and realize management to this key in the mode of interrupting.Other 23 LED lights latch 26 and the chip controls of driving force by having respectively.Keyboard and display floater are managed independently, and anti-High-frequency Interference ability is strong; Modular construction chemical combination reason; Be convenient to assembling; Adjust and maintenance safety, reliable.
The high voltage direct current source circuit:
High-voltage DC power supply is the supplier of the energy of entire equipment, and the quality of its performance directly influences the index of complete machine and safety, reliability, stability, and the form of circuit, component parameter index and high-frequency electromagnetic material are the keys of this power supply.Power supply mainly adopts pulsewidth modulation, the circuit form of full-bridge output, and it is wide to have voltage adjusting range, the characteristics that output is big.Behind DL-10DZ2KR2 (W) wave filter of alternating voltage through meeting electromagnetic compatibility, directly enter high-voltage rectifying, filtering, for the full-bridge inverting pipe provides direct current 310V high pressure, pulse width modulating chip adopts UC3825A, its frequency is made as 43KHz, its output is through isolation drive, promote the alternation of 4 VMOS pipes of full-bridge, and act on high-frequency output transformer with negative resistance effect, its output is again through the fast rectification that recovers the high-frequency high-power diode, filtering, export and form the adjustable voltage of 0-180V, the DC voltage of output amplifies control UC3825A through sampling, makes output voltage stabilization.
Low-voltage dc power supply is the working power of complete machine each several part circuit, and this power supply has been selected sophisticated single tube paralleling switch type regulated power supply.Alternating current 220V enters rectification and filtering through low pass filter, produce the 10V high direct voltage and started the work of UC3843 pulse width modulating chip, produce the pumping signal of fixed pulse width, promote the work of IRFPC40 high-power V metal-oxide-semiconductor, its load is a Switch Power Transformer, through transformer coupled on the coil of secondary winding, induce pulse signal, again through rectification, filtering, voltage such as output ± 12V+15V output respectively, wherein+15V isolates through sampling photoelectricity and feeds back to the UC3843 chip again, to guarantee the stable of each road output voltage.
Power output circuit:
The clinical experience explanation, the amplitude sine wave is suitable for electric knife and " cuts " function, and spike is suitable for " coagulating ".Power output comprises three kinds of forms: TURP output, electricity coagulate output, bipolar output, and export high-power and can carry out several function conversion.The form that adopts the Class A single tube power to amplify, under the effect of its retrace interval capacitor and knot stream diode, form the work wave of sinusoidal positive half cycle on the former limit of high pressure output transformer, this just requires high power valve, should possess good, the high back-pressure of high frequency characteristics and low-resistance performance indications, secondary and a plurality of electric capacity at transformator form sinusoidal wave resonant tank, under the excitation of the square wave of high power valve, make high power valve enter magnifying state, in the resonant tank of secondary, produce sine wave, mid frequency 270K, and operating frequency is 393KHz.Purpose is convenient to the adjustment of output gain, and when the electrical relay change, the connecting mode of former and deputy sideline circle and electric capacity can enter " coagulating " state.
The signal trace sample circuit:
Comprise that the output high pressure detects (auxiliary tracking circuit), output voltage detection, output current detection circuit; Voltage, current tracking testing circuit are the important evidence of real-time acquisition controlling output of CPU and permanent output, the form of this circuit is identical, all adopt high accuracy feedback amplifying type rectification circuit, can fast faint high frequency small-signal be converted to DC level and send the A/D converter conversion, in order to guarantee that it is operated in the linear amplification district, increased attenuator in proportion in the back of transformer, guarantee the precision calculated, the key of this circuit is: the resistance of high-precision AD827 operational amplifier and 1% precision guarantees.
Auxiliary tracking circuit be to consider from the angle of complete machine safety, when equipment output exceed standard or electric current excessive, during overtension, by auxiliary tracking circuit, relevant parameters is provided, allows CPU close circuit such as corresponding electricity, a ripple, guarantee the safety of complete machine hardware device.
The neutral electrode testing circuit:
Form by the voltage controlled oscillator, signal sampling amplifier and the A/D signal adapter that connect successively.Form voltage controlled oscillator by XR2209 and corresponding resistor-capacitor unit, operating frequency is adjustable (establishing f=80HKz), the impulse waveform of output is through integrating circuit, affacts in the LC resonant tank that negative plate contacts, when the contact area of neutral electrode changes, the Q-value in loop is changed, transformer coupled through T10, make its amplitude of variation, pass through analog switch and amplification again, provide the signal of the DC voltage change of 0.6-3.6V to A/D converter, the size of judging contact area with contact whether good.
Writing of indictments, appeals, etc. control circuit:
The enabling signal of the writing of indictments, appeals, etc. is to realize by the output port of complete machine, and this port output is isolated fully with circuitry, suspends.The pencil control circuit comprises writing of indictments, appeals, etc. power supply, comparator and the isolator that connects successively, constitute comparator with LM393, when writing of indictments, appeals, etc. button is pressed, the comparator upset, provide interrupt signal through photoelectrical coupler to CPU, start a ripple of corresponding function, two output ports, 4 comparison amplifiers are arranged, can realize.Simple and easy pulse generator that writing of indictments, appeals, etc. power supply is made of phase inverter and control gate circuit and single tube class A amplifier are formed, process isolation coupling transformator (withstand voltage 〉=9000V), be coupled to secondary rectification again, filtering forms 3 groups of negative supply voltages, use for writing of indictments, appeals, etc. control circuit.
Smog absorption control circuit:
Form by the D/A signal converter, electric machine controller, motor power and the induced-draught electric motor that connect successively.Functional requirement according to smog absorption control, electric machine controller adopts the stronger 89C51 plug-in memorizer of function, 48 I/O port and internal timing/enumerator, have stronger interrupt system and instruction system, by program and hardware circuit, realization is to the control and the management of induced-draught electric motor, on keyboard and display floater, startup/stop key is set, control mode options button and digital addition and subtraction key, 3 LED nixie displaies are arranged, be used for display speed setting value and normal speed, the real-time demonstration of high-speed numerical and fault alarm information demonstration etc. have the display lamp of difference in functionality, also have the LED written instructions lamp in one group of display filter life-span.The user can be provided with suction power (rotating speed) value of induced-draught electric motor easily by keyboard, and regulate electric machine controller through D/A converter, to change the rotating speed of direct current generator, that is: the control induced-draught electric motor is to the inhalation flow of smog, and CPU shows speed setting value in real time by the highlighted charactron of LED during work.
Claims (4)
1. high frequency electric knife, it is characterized in that, in the described electric knife main frame master control system is set, master control system comprise microprocessor control system and respectively with power output circuit, signal trace sample circuit, pencil control circuit, the neutral electrode testing circuit of microprocessor control system UNICOM, smog absorption control circuit, high voltage direct current source circuit;
The signal trace sample circuit comprises that the output high pressure detects, output voltage detects, output current detection circuit;
Microprocessor control system comprises main processing controller, panel management processor, auxiliary control processor, waveform generator; The signal of each circuit is controlled in the detection of main processing controller reception neutral electrode, handle of a knife control, panel and keypad, temperature control, sound control, foot switch control, the remote control writing of indictments, appeals, etc., and main processing controller provides control command to auxiliary control processor; Auxilliary processor controls provides control command to waveform generator, and auxilliary processor controls receives the signal that high-voltage power voltage is controlled, the output high pressure detects, output voltage detects, output current detects, the state relay is controlled, the range relay is controlled each circuit.
2. high frequency electric knife according to claim 1, it is characterized in that, described pencil control circuit comprises successively writing of indictments, appeals, etc. power supply, comparator and the isolator that connects, and simple and easy pulse generator that writing of indictments, appeals, etc. power supply is made of phase inverter and control gate circuit and single tube class A amplifier are formed.
3. high frequency electric knife according to claim 1 is characterized in that, described neutral electrode testing circuit is made up of the voltage controlled oscillator, signal sampling amplifier and the A/D signal adapter that connect successively.
4. high frequency electric knife according to claim 1 is characterized in that, described smog absorption control circuit is made up of the D/A signal converter, electric machine controller, motor power and the induced-draught electric motor that connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200964676U CN201048979Y (en) | 2007-06-19 | 2007-06-19 | High-frequency electric knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200964676U CN201048979Y (en) | 2007-06-19 | 2007-06-19 | High-frequency electric knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048979Y true CN201048979Y (en) | 2008-04-23 |
Family
ID=39335459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200964676U Expired - Lifetime CN201048979Y (en) | 2007-06-19 | 2007-06-19 | High-frequency electric knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048979Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860261A (en) * | 2014-03-26 | 2014-06-18 | 北京康威电子技术有限公司 | High-frequency operation energy platform |
| CN105411668A (en) * | 2015-12-30 | 2016-03-23 | 天津捷希医疗设备有限公司 | Digital electrosurgery workstation |
| CN107661142A (en) * | 2017-09-20 | 2018-02-06 | 珠海康弘医疗科技有限公司 | Artificial intelligent type high frequency electrosurgical equipment |
-
2007
- 2007-06-19 CN CNU2007200964676U patent/CN201048979Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860261A (en) * | 2014-03-26 | 2014-06-18 | 北京康威电子技术有限公司 | High-frequency operation energy platform |
| CN103860261B (en) * | 2014-03-26 | 2016-05-18 | 北京康威电子技术有限公司 | A kind of high frequency surgery energy platform |
| CN105411668A (en) * | 2015-12-30 | 2016-03-23 | 天津捷希医疗设备有限公司 | Digital electrosurgery workstation |
| CN107661142A (en) * | 2017-09-20 | 2018-02-06 | 珠海康弘医疗科技有限公司 | Artificial intelligent type high frequency electrosurgical equipment |
| CN107661142B (en) * | 2017-09-20 | 2018-12-28 | 珠海维尔康生物科技有限公司 | Artificial intelligent type high frequency electrosurgical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100469333C (en) | High-frequency electric knife | |
| EP3505116B1 (en) | Smoke evacuation system including a segmented control circuit for interactive surgical platform | |
| CN103635157A (en) | Electrosurgical apparatus with real-time RF tissue energy control | |
| CN103654945A (en) | Low-temperature plasma treating system | |
| CN201048979Y (en) | High-frequency electric knife | |
| CN201533924U (en) | Hospital central negative pressure system micro computer multipurpose controller | |
| CN201088626Y (en) | Resonant dual disc neutral electrode observation system | |
| CN106491202A (en) | Collation surgery surgery systems | |
| CN203483504U (en) | High-frequency electric scalpel surgical instrument | |
| CN202699277U (en) | High-frequency operation therapeutic apparatus | |
| CN203802502U (en) | Ultrasonic cutting blood-stopping operation instrument | |
| JP7263362B2 (en) | A smoke evacuation system having communication circuitry for communication between the filter and the smoke evacuation device | |
| CN2912549Y (en) | Electrotomy device | |
| CN101322658B (en) | Automatic detection start device for starting fume cleaning system | |
| CN117137612A (en) | Low-temperature curet operation equipment with nerve detection function | |
| CN207286132U (en) | A kind of Collation surgery surgery systems | |
| CN204484290U (en) | For operating Plasma system | |
| CN115607263B (en) | Plasma radio frequency operation system | |
| CN202173470U (en) | Electric surgical bipolar plasma generator | |
| CN205514880U (en) | Novel excavator | |
| WO2019130122A1 (en) | Communication of smoke evacuation system parameters to hub or cloud in smoke evacuation module for interactive surgical platform | |
| CN201814623U (en) | Combined type intracavity lithotripsy machine | |
| CN2671512Y (en) | High frequency electric knife with double sheet polar adhesive area detecting circuit | |
| CN211023087U (en) | Electric energy device with nerve monitoring function for surgical robot | |
| CN202682047U (en) | Disposable high-frequency operation electrode with double-layer anti-high-frequency anti-high-voltage waterproof structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |
|
| CX01 | Expiry of patent term |