CN105455904A - Recognition circuit of medical operation electrode - Google Patents
Recognition circuit of medical operation electrode Download PDFInfo
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- CN105455904A CN105455904A CN201511005371.XA CN201511005371A CN105455904A CN 105455904 A CN105455904 A CN 105455904A CN 201511005371 A CN201511005371 A CN 201511005371A CN 105455904 A CN105455904 A CN 105455904A
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- electrode
- memory chip
- system host
- circuit
- medical operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
Abstract
The invention provides a recognition circuit of a medical operation electrode. The recognition circuit comprises an I-wire memory chip with two wire ports, an electrode connector and a system host. The system host comprises a high-frequency power generator and an isolation interface adapter circuit which are in signal connection. The electrode connector comprises a plug and a socket. The socket is the output socket of the high-frequency power generator. The two ports of the memory chip are connected with the plug and the medical operation electrode respectively and used as a recognition device of the medical operation electrode; the plug is connected into the socket so as to be connected with the isolation interface adapter circuit. The system host reads data of the memory chip, recognizes the type of the electrode and reads data information through the isolation interface adapter circuit. By the adoption of a circuit isolation way, data is stored in the specific area inside an I-wire memory device to recognize the type of the electrode, and the system host can also write information into the other memory areas of the memory device to manage the state of the electrode.
Description
Technical field
The present invention relates to a kind of method that electronic circuit identifies medical apparatus and instruments, the buffer circuit particularly with one-wire bus device, medical operation electrode and apparatus identified and method.
Background technology
Bipolar operation electrode, is the operating theater instruments of for bipolar high frequency power source, patient being carried out to electrosurgical treatment, such as carries out prostatic hyperplasia, gynaecopathia, tumor of bladder etc. to male patient and carry out operative treatment.By the suitable control to high frequency power, electrode produces surgery effects such as lesion tissue vaporization cutting or coagulation of tissues.Generally performed the operation by endoscope in normal saline.A high frequency surgery system, for the purposes of operation, can join electrode and the apparatus of a variety of different model.
Often kind of special electrode and apparatus have different performances, and such as adaptive pattern restriction, maximum power-limiting etc., as artificially inputted setting operation, the probability of makeing mistakes is larger.So general high frequency surgery system all carries out electronic mark to procedures electrode and apparatus.Namely electrode inserts after high frequency power source, and system can identify the model of this electrode, carries out the settings such as the Optimization Work parameter of this model electrode and limiting parameter simultaneously.
Prior art adopts following several identification method:
Electric capacity identification method.The method adopts one or two couple capacitors electrodes to identify.The capacitance of each electric capacity represents the model of electrode, and the capacitance that each model is corresponding and other model have suitable capacity difference, and identification circuit can accurately identify, allows again in the capacitance section that can survey and holds more type identifier value.The advantage of the method is, identifies that the circuit reading capacitance is simple, and one end of capacitor is easily accomplished and the reference potential such as electrode, but too many model will cause capacitance excessive.Use two capacitors, the quantity that can identify can be made greatly to increase, but therefore electrode can increase at least one connection wire and patch pin.The example of the method is used to have: " GyeusPlasmaKineticSystem " and the G400WorkStation (G400 work station) of Gyrus Medical Inc. (GyrusMedicalInc.), the former uses a capacitor to make a check mark, and the latter uses two capacitors to make a check mark.
Resistance label method.The method adopts one or many resistance counter electrode to identify.Corresponding a kind of model between every section of resistor tracks, or the model of the combination counter electrode of multiple resistance, method of attachment is and electrode copolar or insulation.Comparatively simple to the read method of resistance value, as resistance and electrode copolar then need the read method using electric isolution.
Chinese patent utility model, patentee: Beijing Biozone Technology Co., Ltd., application number is method disclosed in " the procedures electrode identification of high frequency electrosurgical equipment and the counting assembly " of 201120372589.X, this utility model discloses a kind of high frequency electrosurgical equipment procedures electrode identification and counting assembly, comprise and identify counting primary module and radio-frequency card, identify that counting primary module is located in high frequency electrosurgical equipment box, radio-frequency card is located on the plug of procedures electrode connection, identify that counting primary module comprises microprocessor, radio frequency module for reading and writing, corresponding on the microprocessor respectively IO of the signal input output end of clock circuit holds and connects, the signal and communication transmission end of microprocessor connects to the control end of corresponding control circuit in high frequency electrosurgical equipment, the antenna inserted terminal of radio frequency module for reading and writing is connected with antenna, when the plug of procedures electrode is plugged on procedures electrode socket, the induction work surface of radio-frequency card is relative with the induction work surface of antenna.This utility model can identify procedures electrode, and counts its access times, reminding medical personnel to change the procedures electrode using and transfinite in time, avoiding the hidden danger because using unsafe procedures electrode to bring.
Chinese invention patent, patentee: Hehao Industry and Trade Co., Ltd., Guangdong Prov., application number is: " circuit marking method of medical ambi-plasma cutting head " of 02135013.2.It is characterized in that external electrode is cut with medical plasma body in one end of Two-port netwerk voltage-stabilizing device and cutting head viaduct is connected, in cutting, electrode is due to the connection of cutting head adapter.System applies electric current to voltage-stabilizing device, the voltage of test voltage-stabilizing device, the model of different voltage-stabilizing device mark cutting heads.Accurately and reliably, certainty of measurement does not affect by moist electric leakage factor the measurement mark of this invention, and tolerance electric pulse impacts.The ownership of this patent goes to Zhuhai Simai Science & Technology Co., Ltd., the registration effective date: on 05 12nd, 2011.
The quality of lower surface analysis four kinds of methods:
Electric capacity label method is the method using more, and the type kind that can identify is more, needs special capacitance test circuit, and under real working conditions, test circuit needs the interference bearing high frequency electric.Capacitance method can only read capacitance, and system host can not store new information to it.
Electric-resistivity method is simple because reading, and uses also more, but when resistance value is larger, the ability of anti-high frequency electric interference can decline, and system host can not store new information to it.
Two-port netwerk voltage-stabilizing device label method, this identification method, accurately and reliably, identification circuit is simple, but the kind that can identify is less, and system host can not store new information to it.
Whether the advantage of radio-frequency card identification method is noncontact, and can carry out the interactive operations such as counting, because radio-frequency card can read apart from during socket certain distance or store, reliably insert there is uncertainty as distinguish of system electrode.Radio-frequency card needs high-frequency induction to power and power taking in addition, can increase system electromagnetic interference.
Summary of the invention
Because described in background technology, the present invention is necessary to provide a kind of new identification method, can have the advantage of above-mentioned various method concurrently and evade its shortcoming.
The object of the invention is to be achieved through the following technical solutions:
An identification circuit for medical operation electrode, is characterized in that: described identification circuit comprises: the one-wire bus with two line caps
memory chip, electrode connector and system host; Described system host comprises high frequency power generator and the isolating interface adapter circuit of signal connection; Described electrode connector comprises plug and socket; Described socket is the accessory power outlet of high frequency power generator, two ports of described memory chip respectively with plug and the described medical operation Electrode connection of described electrode connector, for the recognition means as described medical operation electrode, described plug is connected in described socket, thus is connected with described isolating interface adapter circuit; Described system host reads the data of described memory chip by described isolating interface adapter circuit, thus identifies model and the read data information of electrode.
Described medical operation electrode is bipolar electrode, and it exports two lines and isolates over the ground.
" the earth-return pole " of described memory chip connects the pole, loop of described medical operation electrode, and the IO pole of described memory chip is connected with described system host by described electrode connector.
Described memory chip is placed in described electrode connector, and be connected with described electrode connector circuit: described memory chip is connected with two in three electrode plug pins of described electrode connector nearby, and described electrode connector is connected with described medical operation electrode by cable; Described socket is arranged on the front panel of described system host, and is connected with the high frequency power generator of described system host inside and isolating interface adapter circuit.
Described isolating interface adapter circuit can be (namely utilized by the ADUM series DCDC of ADI (AnalogDevices) company and bus adaption chip
the digital isolator of technology) composition; Also the data isolation device chip forming circuit of identical function can be had with other company.
Described isolating interface adapter circuit makes dcdc converter by ADUM6000 (U4), and for described memory chip provides the floating power supply of isolation, isolating withstand voltage is 5000VAC; Adopt ADUM2250 (U5) for application I
2the isolation bus adaption chip of C bus, isolating withstand voltage is also 5000VAC.
The IO end of described memory chip is connected with the SDA2 foot of described U5, between the VDD being connected to described U4 output as the R1 of the pull-up resistor of the IO pole of one-wire bus memorizer and the IO pole of described one-wire bus memorizer, as between the VDD protecting the D1 of diode to be connected to described U4 output and the IO pole of described memory chip; The IO end of system host connects the SDA1 foot of described U5, and the R2 as the pull-up resistor of system host bus IO is connected between the SDA1 foot of circuit power supply VCC and described U5, and the SDA1 foot of described U5 is by the D2 ground connection as protection diode; Between the reference ground GND1 that electric capacity C1, C2 are connected between the VDD of described U4 output and the reference ground GND1 of power supply side, electric capacity C3, C4 are connected to VCC and power supply side, the electric capacity such as C1, C2, C3, C4 are respectively used to the power decoupling on buffer circuit both sides.
Relative to prior art, advantage of the present invention comprises:
The identification circuit of the present invention, adopts the method for data isolation transmission, realizes the electric isolution of identification device and read/write circuit, withstand voltagely reach thousands of volt; High-frequency bipolar electrode is used in operation, and provide controlled high-frequency energy by system host, electrode is connected by adapter with system host; In one-wire bus memory device, the specific region model of storage data to electrode identifies, system host reads model and the data message of the method identification electrode of memory chip data by isolating interface adapter circuit, can manage the state of electrode.
Accompanying drawing explanation
Fig. 1 is the overall theory diagram of the embodiment of the present invention one;
Fig. 2 is the one-wire bus interface principle block diagram of the isolation of the embodiment of the present invention one;
Fig. 3 is embodiment of the present invention electrical connection principle schematic;
Fig. 4 is the present embodiment circuit connecting relation schematic diagram.
Detailed description of the invention
The present embodiment provides a kind of identification circuit of medical operation electrode, and as shown in Figures 1 to 4, it comprises: the one-wire bus with two line caps
memory chip, electrode connector, and system host.Described system host comprises high frequency power generator and the isolating interface adapter circuit of signal connection; Described electrode connector comprises electrode plug and electrode socket; Described electrode socket is the accessory power outlet of high frequency power generator, two ports of described memory chip respectively with plug and the described medical operation Electrode connection of described electrode connector, for the recognition means as described medical operation electrode, described electrode plug is connected in described electrode socket, thus is connected with described isolating interface adapter circuit; Described system host reads the data of described memory chip by described isolating interface adapter circuit, thus identifies model and the read data information of electrode.
" the earth-return pole " of described memory chip connects the pole, loop of described medical operation electrode, and " the IO pole " of described memory chip is connected with described system host by described electrode connector.
Described medical operation electrode is bipolar electrode, and it exports two lines and isolates over the ground.
Because described memory chip directly connects the high frequency output high-pressure section of described high frequency power generator, therefore need to solve described memory chip and the partially isolated problem of system low-voltage, while isolation, carry out the transmitted in both directions of data, namely high frequency power generator carries out reliable data read-write operation to described memory chip.
One-wire bus memory chip is placed in electrode connector, memory chip is connected with described electrode connector, circuit theory is shown in shown in Fig. 1 and Fig. 2: electrode socket J1B is the accessory power outlet of high frequency power generator, high frequency power exports through this socket, and the high-frequency and high-voltage output of high frequency power generator is all connected with 1 foot of described electrode socket J1B and 2 feet; The isolating interface high-pressure section outfan of isolating interface adapter circuit is linked together by the high frequency output line (2 feet of electrode socket J1B) of a holding wire and high frequency power generator, and another root holding wire is communicated with the outfan of described isolating interface high-pressure section and 3 feet of described electrode socket J1B.Electrode plug J1A is the adapter that electrode is connected with high frequency power generator main frame, one-wire bus storage chip is (in Fig. 2, be labeled as 1) 1 and 2 feet respectively 3 and 2 feet of connection electrode plug J1A (in Fig. 2 nearby, be labeled as 22,23), thus reduce external disturbance to the impact of chip read-write operation, 1 and 2 feet of electrode tip pass through 1 and 2 feet of cable (in Fig. 2, being labeled as 21) difference connection electrode plug J1A.Electrode plug J1A is electrode insertion socket J1B operationally, stitch one_to_one corresponding.Described electrode socket J1B is contained on the front panel of system host, and is connected with main frame internal circuit.
Fig. 3 is one-wire bus isolated data transmission principle block diagram, the internal data isolation indicating the isolating chip of one-wire bus adopts high frequency transformer isolation transmission, i.e. ADUM family chip inner topology, adopts the isolated data of the type transmission chip to do data transmission performance outstanding.U4 is dcdc converter, and optional model has ADUM6000.U5 is isolation bus transfer chip, and optional model has ADUM2250.The insulation output power supply VDD of U4 connects U5; GND1 is the reference ground of power supply side, and the representative value of the relative GND2 of VCC is+5V.The SDA1 foot of U5 is be connected with the IO port of main frame MCU (MicrocontrollerUnit).GND2 be the reference of electrode tip i.e. " earth-return pole ", the representative value of the relative GND2 of VDD is+3.3V.SDA2 is connected with the IO port of described memory chip.
Fig. 4 is the present embodiment circuit connecting relation schematic diagram.In the present embodiment, described isolating interface adapter circuit makes dcdc converter by ADUM6000 (U4), and for described memory chip (Fig. 4 is labeled as 1) provides the floating power supply of isolation, isolating withstand voltage is 5000VAC; Adopt ADUM2250 (U5) for application I
2the isolation bus adaption chip of C bus, isolating withstand voltage is also 5000VAC.The IO end of described one-wire bus memory chip is connected with the SDA2 foot of described U5, and R1 is one-wire bus IO pull-up resistor, and D1 is protection diode; The IO end of system MCU connects the SDA1 foot of U5, and R2 is system host bus IO pull-up resistor, and D2 is protection diode.The electric capacity such as C1, C2, C3 and C4 are respectively used to the power decoupling on buffer circuit both sides, and rationally the performance of electromagnetic compatibility can be improved in the position of arrangement electric capacity.FPDP due to one-wire bus memory chip only has a road, so only use the SDA1 transmission link of ADUM2250 (U5), can realize the transmitted in both directions of data; SCL1 transmission link need not, both sides connect R3 and R4 pull-up resistor respectively.
It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. an identification circuit for medical operation electrode, is characterized in that:
Described identification circuit comprises: the one-wire bus with two line caps
memory chip, electrode connector and system host; Described system host comprises high frequency power generator and the isolating interface adapter circuit of signal connection; Described electrode connector comprises plug and socket; Described socket is the accessory power outlet of high frequency power generator, two ports of described memory chip respectively with plug and the described medical operation Electrode connection of described electrode connector, for the recognition means as described medical operation electrode, described plug is connected in described socket, thus is connected with described isolating interface adapter circuit; Described system host reads the data of described memory chip by described isolating interface adapter circuit, thus identifies model and the read data information of electrode.
2. identification circuit according to claim 1, is characterized in that:
Described medical operation electrode is bipolar electrode, and it exports two lines and isolates over the ground.
3. identification circuit according to claim 1, is characterized in that:
" the earth-return pole " of described memory chip connects the pole, loop of described medical operation electrode, and the IO pole of described memory chip is connected with described system host by described electrode connector.
4. identification circuit according to claim 1, is characterized in that:
Described memory chip is placed in described electrode connector, and be connected with described electrode connector circuit: described memory chip is connected with two in three electrode plug pins of described electrode connector nearby, and described electrode connector is connected with described medical operation electrode by cable; Described socket is arranged on the front panel of described system host, and is connected with the high frequency power generator of described system host inside and isolating interface adapter circuit.
5. identification circuit according to claim 4, is characterized in that:
Described isolating interface adapter circuit is made up of the serial DCDC of the ADUM of ADI company and bus adaption chip.
6. identification circuit according to claim 5, is characterized in that:
Described isolating interface adapter circuit makes dcdc converter by ADUM6000 (U4), and for described memory chip provides the floating power supply of isolation, isolating withstand voltage is 5000VAC; Adopt ADUM2250 (U5) for application I
2the isolation bus adaption chip of C bus, isolating withstand voltage is also 5000VAC.
7. identification circuit according to claim 6, is characterized in that:
The IO end of described memory chip is connected with the SDA2 foot of described U5, between the VDD being connected to described U4 output as the R1 of the pull-up resistor of the IO pole of one-wire bus memorizer and the IO pole of described one-wire bus memorizer, as between the VDD protecting the D1 of diode to be connected to described U4 output and the IO pole of described memory chip; The IO end of system host connects the SDA1 foot of described U5, and the R2 as the pull-up resistor of system host bus IO is connected between the SDA1 foot of circuit power supply VCC and described U5, and the SDA1 foot of described U5 is by the D2 ground connection as protection diode; Between the reference ground GND1 that electric capacity C1, C2 are connected between the VDD of described U4 output and the reference ground GND1 of power supply side, electric capacity C3, C4 are connected to VCC and power supply side, the electric capacity such as C1, C2, C3, C4 are respectively used to the power decoupling on buffer circuit both sides.
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| CN108013870A (en) * | 2017-12-29 | 2018-05-11 | 苏州润迈德医疗科技有限公司 | A kind of invasive blood pressure Acquisition Circuit |
| CN109044524A (en) * | 2018-06-22 | 2018-12-21 | 武汉大学 | A kind of electric knife power source dynamical output and control system |
| CN109363785A (en) * | 2018-11-30 | 2019-02-22 | 珠海市司迈科技有限公司 | The identification of medical operation electrode and data logging system |
| CN109528298A (en) * | 2018-11-30 | 2019-03-29 | 珠海市司迈科技有限公司 | A kind of intelligent operation device and its working method |
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| CN109044524A (en) * | 2018-06-22 | 2018-12-21 | 武汉大学 | A kind of electric knife power source dynamical output and control system |
| CN109044524B (en) * | 2018-06-22 | 2020-04-14 | 武汉大学 | Electrotome power source dynamic output and control system |
| CN109363785A (en) * | 2018-11-30 | 2019-02-22 | 珠海市司迈科技有限公司 | The identification of medical operation electrode and data logging system |
| CN109528298A (en) * | 2018-11-30 | 2019-03-29 | 珠海市司迈科技有限公司 | A kind of intelligent operation device and its working method |
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