CN2912549Y - Electrotomy device - Google Patents
Electrotomy device Download PDFInfo
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- CN2912549Y CN2912549Y CN 200620116187 CN200620116187U CN2912549Y CN 2912549 Y CN2912549 Y CN 2912549Y CN 200620116187 CN200620116187 CN 200620116187 CN 200620116187 U CN200620116187 U CN 200620116187U CN 2912549 Y CN2912549 Y CN 2912549Y
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- circuit
- electrode
- high frequency
- control circuit
- electrotomy
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Abstract
The utility model relates to a high frequency electric scalpel surgical device. The utility model comprises a control circuit controller and a scalper handle, which is connected with the control circuit and provided with a surgical electrode. The control circuit is also connected with a neutral electrode plate, which comprises an insulated-layer covered metal plate. The control circuit comprises a signal generating circuit with the output frequency of 1.5-4.5MHz. The modulate circuit comprises a radiofrequency-MOSTET power tube; an amplifier circuit is composed of a high frequency transformer and a multilevel LC filter circuit. The surgical electrode is microfilament-shaped, with the diameter no longer than 0.2mm. The corresponding switch is arranged on the operational scalpel handle. The modulator outputs the energy, according to the switch order, to shape the wave, sending the wave to the microfilament-shaped surgical electrode. The human tissue is connected with the insulated neutral electrode plate, forming a capacitance coupling. The human tissue is connected with the microfilament-shaped surgical electrode, forming a high frequency circuit. The capacitance coupling and the high frequency circuit together make the utility model to act out varies of surgical operations.
Description
Technical field
This utility model relates to a kind of electronic therapy device, particularly a kind of electrotomy device that is used for the radio-frequency stage of medical treatment.
Background technology
The electrotomy device abbreviates high frequency electric knife as, and it is a class Electrosurgical instrument, is one of visual plant of modern medical service operation, be applied in the medical operating cutting, cut and function such as coagulate, stop blooding, melt.The high frequency electric knife operation principle is with a high frequency source, by high-frequency oscillating circuits, with the form of hf electric arc electric energy is converted into heat energy, and utilizes the high temperature heat that is produced at the human body superficial tissue, and tissue is cut and solidifies.
In the prior art, the frequency≤500KHz of high frequency electric knife, its cutting to tissue produces high temperature heat when relying on electric current by the impedance of electrode own and finishes.
The defective of existing high frequency electric knife is: because the hyperpyrexia of procedures electrode, cross thin or meticulous its mechanical strength of electrode is not enough to finishing of buttressing operation, therefore existing high frequency electric knife uses thicker electrode, has caused the otch of the broad of cutting tissue, the otch damage is big, and healing is slow.The neutral electrode of high frequency electric knife is a conductive metal sheet, must well contact with skin during indifferent plate electrode work; In operation process, come in contact badly as indifferent plate electrode and skin, easily cause skin burn.
On the other hand, high frequency electric knife inside exports procedures electrode to through an electric capacity, because fundamental frequency is lower, use the insulation neutral electrode will be not enough to transmit enough energy and finish operation, therefore, human body must could constitute radio circuit by well directly contacting with the conducting metal neutral electrode, and this is a kind of resistive way of contact.The low frequency leakage current easily takes place in the resistive way of contact, and human nerve, muscle particularly heart are very responsive to the low frequency leakage current, and excessive low frequency leakage current produces serious stimulation even causes the people desperately the patient, and the low frequency electric leakage is the potential safety hazard to people's life.Low frequency electric leakage in the high frequency electric knife can't be stopped fully to the harm of human body.
It is excessive to solve the otch of above-mentioned high frequency electric knife in clinical treatment, and because of loose contact causes skin burn, and the low frequency electric leakage provides a kind of new utility model to become very necessary to people's problems such as security threat.
The utility model content
Technical problem to be solved in the utility model is to overcome above-mentioned existing in prior technology defective, and the otch of operation is reduced, and prevents skin burn and eliminates the potential safety hazard that low frequency leaks electricity and brings to human body.
For this reason, this utility model provides a kind of electrotomy device, comprises the controller that is provided with control circuit and is connected and is equipped with the blade holder of procedures electrode with described control circuit; Described control circuit is connected with an indifferent plate electrode.Described control circuit comprises that output frequency is the signal generator circuit of 1.5-4.5MHz and the power amplification circuit that is connected with the outfan of this signal generator circuit, and the outfan of this power amplification circuit is connected with described blade holder; Described procedures electrode is the microfilament shape, and diameter is not more than 0.2mm.
Described signal generator circuit is made of signal generating circuit and modulation circuit serial connection; Amplifying circuit that described power amplification circuit is drive circuit, be made up of radio frequency MOSFET power tube and high frequency transformer and filter circuit order structure connect to be formed; Described filter circuit is multistage LC filter circuit.
Also be provided with central processing unit and input signal conditioning circuit in the described controller; The input of described input signal conditioning circuit connects described blade holder, and outfan connects described central processing unit; The control signal output ends of described central processing unit connects described modulation circuit.Described input signal conditioning circuit is made of concussion, detection, amplitude discrimination circuit.Described central processing unit also is connected with the universal data interface that is used for carrying out with outer computer transfer of data.
Described indifferent plate electrode constitutes for the metallic plate by coated insulating barrier.
This utility model compared with prior art has the following advantages:
Kerf width is little, and lesion depths is little, to the tissue hot injury degree of depth 15-20 micron of only having an appointment, has improved the speed of wound healing and the appearance behind the wound healing greatly.
Reduced the probability that causes skin burn because of skin and electrode loose contact.
Reduced the probability of low frequency electric leakage, eliminated the potential safety hazard of low frequency signal histoorgans such as human muscle, hearts.
Description of drawings
Fig. 1 is this utility model operation principle circuit diagram.
Fig. 2 is this utility model one embodiment sketch map.
Fig. 3 is another embodiment sketch map of this utility model.
Fig. 4 is this utility model embodiment sketch map again.
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
The specific embodiment
See also Fig. 1, Fig. 1 is this utility model operation principle circuit diagram.The circuit that can clearly find out this utility model electrotomy device by present embodiment constitutes and annexation.As shown in FIG., this utility model electrotomy device comprises the controller that is provided with control circuit and is connected and is equipped with the blade holder of procedures electrode with this control circuit that described control circuit is connected with an indifferent plate electrode simultaneously.Wherein, procedures electrode is the microfilament shape, and diameter is not more than 0.2mm; Indifferent plate electrode is that the metallic plate of coated insulating barrier constitutes.When operation, form the high frequency closed-loop path between procedures electrode and the metallic plate, indifferent plate electrode is coated with insulating barrier, and procedures electrode is by forming electric capacity between human body and the metallic plate like this.Procedures electrode is different from resistance with electric capacity connected mode between the metallic plate and is connected, no matter whether the human body operative site contacts good with indifferent plate electrode, described electric capacity connected mode all can effectively prevent the resistance connected mode because of burning that loose contact causes, and stopped the possibility that the low frequency leakage current easily takes place in the resistance way of contact.
Signal generator circuit, power amplification circuit comprises that also central processing unit and input signal conditioning circuit etc. have partly constituted the controller of electrotomy device.Controller is the kernel control module of electrotomy device, realizes the generation, amplification, conditioning of signal etc., and according to the difference of working condition in the input signal, the output control signal corresponding realizes cutting, cuts and operation technique such as coagulate, stop blooding, melt.
Please consult Fig. 2 earlier, Fig. 2 is this utility model one embodiment sketch map.The difference of Fig. 2 and Fig. 1 is that present embodiment has carried out further refinement to the various piece of control circuit, has more clearly explained its annexation each other.As shown in the figure, the signal generator circuit shown in Fig. 1 is made of signal generating circuit and modulation circuit serial connection, and wherein the output frequency of signal generating circuit is 1.5-4.5MHz; Power amplification circuit shown in Fig. 1 is linked in sequence by drive circuit, amplifying circuit, filter circuit and forms; Input signal conditioning circuit shown in Fig. 1 is to be made of concussion, detection, amplitude discrimination circuit.Wherein, the amplifying circuit that power amplification circuit is made up of radio frequency MOSFET power tube and high frequency transformer, filter circuit are multistage LC filter circuit.In addition, the annexation between each parts also can clearly show.One input of central processing unit is connected with the outfan of the concussion that constitutes the input signal conditioning circuit, detection, filter circuit, and the outfan of central processing unit is connected with an input of the modulation circuit that constitutes a signal generator circuit part.
Operation principle of the present utility model once is described in detail in detail in conjunction with the embodiments.Have switch on the blade holder, switch on the operation handle of a knife, send control instruction, signal is passed to controller, handle through vibration, detection, amplitude discrimination circuit, be delivered to central processing unit, central controller carries out obtaining and the corresponding applied waveforms control data of operational order after the amplitude analyzing and processing to signal.Take place to produce the first-harmonic that circuit produces 1.5-4.5MHz by signal, export modulation circuit to, modulated in the lump in modulation circuit with the applied waveforms control data that the central controller circuit produces.Signal after the modulation is sent to radio frequency MOSEFT power tube after drive circuit drives, high frequency transformer carries out exporting microfilament shape procedures electrode to after the high frequency power amplification is partly carried out multistage first-harmonic filtering by multistage LC filter circuit again.During operation, the insulation indifferent plate electrode places under patient's body.The radiofrequency signal at procedures electrode place constitutes radio circuit with microfilament shape procedures electrode, thereby finishes the basic operation technique to when injected organism tissue through the Capacitance Coupled that tissue contact insulation indifferent plate electrode forms.
Fig. 3 is shown as another embodiment of the present utility model, and this utility model provides a kind of radio-frequency stage high frequency electric knife device of more perfect functions.With embodiment illustrated in fig. 2 different be, be connected with a data-interface with central processing unit in the present embodiment, can be connected with computer by this data-interface.In operation process, sometimes need some data of real-time operation technique are comprehensively gathered, monitoring is added up, thereby obtains the best or preferable empirical data of corresponding operation technique.For this reason, this utility model provides data-interface.This radio frequency knife is connected with general purpose computer by data-interface, carries out exchanges data, obtains real-time operation technique data, can real-time analysis, running parameters such as the work wave of storing radio frequency knife, energy variation, draw the best empirical data of corresponding operation technique.In addition, another use of this interface is, can carry out the auto upgrading of software to radio frequency knife by general purpose computer, and the progressive performance of improving device is further optimized operation.
Consult Fig. 4, Fig. 4 is shown as this utility model embodiment again.Fig. 4 compares with Fig. 3 has increased a keyboard circuit and a display circuit.In operation process, different operation technique energy needed are different.During operation, the operator sets cutting respectively, cuts the high frequency output energy grade of operation techniques such as coagulating, stop blooding, melt by keyboard according to the operation needs, imports central processing unit by the control signal of keyboard setting.During operation technique, press the respective switch on the blade holder, the signal that switch sends is through entering central processing unit after concussion, detection, the modulate circuit, and central processing unit can send corresponding signal modulation instructions according to the working method of keyboard setting.The different operation technique that keyboard is provided with, the modulation of waveform is for adopting corresponding different modulator approach, this utility model adopts four kinds of different waveform modulated methods, the short persistent wave intermittently of band, the short all-wave sinusoidal modulation wave intermittently of band, the modulation of square wave variable duty ratio, and square wave amplitude modulation.Radio frequency knife according to switch order export corresponding energy operation waveform cutting, cut and coagulate, stop blooding, melt and bipolar, finish operation technique via the output of microfilament shape procedures electrode by human body, insulation indifferent plate electrode formation radio circuit.Simultaneously, armarium is high to safety requirements, needs a display circuit carry out real-time tracking and monitoring to the parameter information, the operation technique information that are provided with, and it is shown that high frequency output energy grade by keyboard to set up and corresponding operation information are shown circuit.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.
Claims (8)
1, a kind of electrotomy device comprises the controller that is provided with control circuit and is connected and is equipped with the blade holder of procedures electrode with described control circuit; Described control circuit is connected with an indifferent plate electrode, it is characterized in that: described control circuit comprises that output frequency is the signal generator circuit of 1.5-4.5MHz and the power amplification circuit that is connected with the outfan of this signal generator circuit, and the outfan of this power amplification circuit is connected with described blade holder; Described procedures electrode is the microfilament shape, and diameter is not more than 0.2mm.
2, electrotomy device according to claim 1 is characterized in that: described signal generator circuit is made of signal generating circuit and modulation circuit serial connection.
3, electrotomy device according to claim 1 is characterized in that: amplifying circuit that described power amplification circuit is drive circuit, be made up of radio frequency MOSFET power tube and high frequency transformer and filter circuit order structure connect to be formed.
4, electrotomy device according to claim 3 is characterized in that, described filter circuit is multistage LC filter circuit.
5, electrotomy device according to claim 2 is characterized in that: also be provided with central processing unit and input signal conditioning circuit in the described controller; The input of described input signal conditioning circuit connects described blade holder, and outfan connects described central processing unit; The control signal output ends of described central processing unit connects described modulation circuit.
6, electrotomy device according to claim 5 is characterized in that: described input signal conditioning circuit is made of concussion, detection, amplitude discrimination circuit.
7, electrotomy device according to claim 5, it is characterized in that: described central processing unit also is connected with the universal data interface that is used for carrying out with external computing device transfer of data.
8, according to the arbitrary described electrotomy device of claim 1-7, it is characterized in that: described indifferent plate electrode constitutes for the metallic plate by coated insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116187 CN2912549Y (en) | 2006-05-24 | 2006-05-24 | Electrotomy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116187 CN2912549Y (en) | 2006-05-24 | 2006-05-24 | Electrotomy device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2912549Y true CN2912549Y (en) | 2007-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620116187 Expired - Fee Related CN2912549Y (en) | 2006-05-24 | 2006-05-24 | Electrotomy device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2912549Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008350A (en) * | 2010-11-17 | 2011-04-13 | 胡伟九 | High-frequency electrosurgical operation instrument |
| CN102641152A (en) * | 2012-05-22 | 2012-08-22 | 上海理工大学 | High-frequency electrotome generator based on FPGA (Field Programmable Gata Array) |
| CN103083083A (en) * | 2013-02-21 | 2013-05-08 | 武汉兰宝石医疗设备有限公司 | Frequency conversion high frequency electrotome |
| CN105832410A (en) * | 2016-01-25 | 2016-08-10 | 安进医疗科技（北京）有限公司 | Electrode control device, electrode control method and electromagnetic knife surgery system |
| CN106137381A (en) * | 2015-03-31 | 2016-11-23 | 四川锦江电子科技有限公司 | Radiofrequency melting instrument, the control method of radiofrequency melting instrument and device |
-
2006
- 2006-05-24 CN CN 200620116187 patent/CN2912549Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008350A (en) * | 2010-11-17 | 2011-04-13 | 胡伟九 | High-frequency electrosurgical operation instrument |
| CN102008350B (en) * | 2010-11-17 | 2012-07-25 | 胡伟九 | High-frequency electrosurgical operation instrument |
| CN102641152A (en) * | 2012-05-22 | 2012-08-22 | 上海理工大学 | High-frequency electrotome generator based on FPGA (Field Programmable Gata Array) |
| CN103083083A (en) * | 2013-02-21 | 2013-05-08 | 武汉兰宝石医疗设备有限公司 | Frequency conversion high frequency electrotome |
| CN103083083B (en) * | 2013-02-21 | 2015-02-18 | 武汉兰宝石医疗设备有限公司 | Frequency conversion high frequency electrotome |
| CN106137381A (en) * | 2015-03-31 | 2016-11-23 | 四川锦江电子科技有限公司 | Radiofrequency melting instrument, the control method of radiofrequency melting instrument and device |
| CN106137381B (en) * | 2015-03-31 | 2019-03-15 | 四川锦江电子科技有限公司 | Radiofrequency melting instrument, the control method of radiofrequency melting instrument and device |
| CN105832410A (en) * | 2016-01-25 | 2016-08-10 | 安进医疗科技（北京）有限公司 | Electrode control device, electrode control method and electromagnetic knife surgery system |
| CN105832410B (en) * | 2016-01-25 | 2023-09-22 | 安进医疗科技（北京）有限公司 | Electrode control device, method and electromagnetic knife operation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING PEONY DISPLAY SCIENCE AND TECHNOLOGY CO., Free format text: FORMER OWNER: LIU JIAJIAN Effective date: 20091211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091211 Address after: No. 2, building 2, Huayuan Road, Beijing, Haidian District, 100191 Patentee after: Beijing peony Display Technology Co., Ltd. Address before: Beijing City, Xicheng District Yuetan Nan Street, No. 1, zip code: 100088 Patentee before: Liu Jiajian |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20110524 |