CN205514773U - A high voltage pulse generating device for calculus is broken - Google Patents
A high voltage pulse generating device for calculus is broken Download PDFInfo
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- CN205514773U CN205514773U CN201520996216.8U CN201520996216U CN205514773U CN 205514773 U CN205514773 U CN 205514773U CN 201520996216 U CN201520996216 U CN 201520996216U CN 205514773 U CN205514773 U CN 205514773U
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Abstract
The utility model provides a high voltage pulse generating device for calculus is broken, includes high voltage pulse generator and the two hank output line of compriseing rectification filter circuit unit, battery charging unit, the control unit and high voltage output unit. The high -voltage pulse unit includes the high -voltage pulse transformer, and the output pulse of high -voltage pulse transformer carries out the breakage to it guide to the calculus through the paired line on. The utility model discloses from the energy angle, it is littleer to compare the broken energy that needs in other institute, specifically for about 0.15J. From the output frequence angle, this high voltage pulse generator output frequence reaches as high as 10KHz, from the transmission line angle, compares in other research the utility model discloses a good paired line of economic nature is as the transmission line to compromise the effect of electrode. Other similar achievements adopt the coaxial line that costs an arm and a leg to need welding in addition after the electrode tip loss. The utility model discloses an alright continuation is used after only needing simple the processing after the electrode tip loss. From economic nature angle, the utility model discloses economy is cheap more, and equipment cost is low.
Description
Technical field
This utility model belongs to medical science calculus-smashing field, a kind of high voltage pulse generating means for calculus-smashing.
Background technology
For calculus a lot of clinical treatment, such as electrohydraulic lithotripsy, extracorporeal shock-wave lithotripsy (ESWL), Ho.YAG laser lithotripsy, pneumatic ballistic lithotripsy etc..These Therapeutic Method can not be taken into account efficiently, the requirement of safety, low cost.The method utilizing the broken calculus of high voltage pulse electric discharge is a new research direction, and external as more deep to this technique study in Russia, the domestic research to this method is less.
Utility model content
The purpose of this utility model, is to provide a kind of high voltage pulse generating means, it is achieved that effectively crushing calculus in saltwater environment.
The technical scheme is that
A kind of high voltage pulse generating means for calculus-smashing, including high-voltage pulse generator, twisted-pair feeder.It is characterized in that:
High-voltage pulse generator is used for producing high voltage pulse, and twisted-pair feeder is used for exporting pulse and using as electrode.
High-voltage pulse generator includes rectification unit, charhing unit, High voltage output unit and frequency control unit, and concrete structure block diagram is as shown in Figure 2.
Rectification unit, including bridge rectifier D V, the first potentiometer W1, the second potentiometer W2With electric capacity C1；First potentiometer W1It is serially connected in the positive pressure side of the power supply circuits after bridge rectifier rectification, the second potentiometer W2Then it is serially connected in the negative pressure end of the power supply circuits after bridge rectifier rectification.One end of capacitor C1 and the first potentiometer W1Connect, its other end then with the second potentiometer W2Connect.Voltage after rectification is 200-350V.
Charging circuit, switchs (VT1), subordinate switch (VT2), diode VD1, inductance L and electric capacity C2 including higher level.
After higher level switchs the primary coil series connection of VT1, diode VD1, inductance L and transformator T, switch VT2 ground connection through subordinate.One end of electric capacity C2 is connected with any point on inductance L and transformator T primary coil line, the other end ground connection of electric capacity C2.
High voltage output unit, predominantly high voltage pulse transformer T.The malleation outfan of the secondary coil of transformator T uses twisted-pair feeder.The outfan of high voltage pulse transformer T is by, on Double-strand transmission to calculus, crushing it, as shown in Figure 1.
Above-mentioned VT1, VT2 are insulating gate type field effect tube.
Effect to components and parts of the present utility model is described in further detail:
The figure of Fig. 3 left-half shows that control frequency input (F) and voltage input (U), higher level's switch (VT1) and subordinate's switch (VT2) control delivery outlet；The figure of Fig. 3 right half part is that corresponding working state parameter is schemed over time.It can be seen that change state turn-on time of higher level's switch (VT1) from the figure of Fig. 3 right half part, change to 150 microseconds from 30 microseconds, it is possible to the voltage changing storage capacitors (C2) changes from 200 volts to 600-680V.
As shown in Figure 4, after disconnecting higher level's switch (VT1), it is followed by catharsis level switch (VT2) by " resting " time (about 1 microsecond), produces high voltage pulse through transformator T, through Double-strand transmission, calculus is crushed simultaneously.Voltage in transformer is identical with the voltage on electric capacity C2, and amplitude is 600-680V.By transformator, the voltage on primary coil being promoted, voltage is coupled to secondary coil.
Voltage on pulse transformer secondary coil, uses " twisted-pair feeder " type transmission line to be transmitted.Twisted-pair feeder is for other both expensive coaxial cable, the most convenient but also economical.Twisted-pair feeder serves as the effect of electrode simultaneously, and other use the equipment of coaxial line then to need other welding electrode head.
When specific experiment is implemented, crush in calculus is placed on saltwater environment.Saline is for simulating the liquid environment in human body, the theory simultaneously insulated from water, when the rising edge of pulse voltage is less than 500ns, the dielectric strength of water is more than the dielectric strength of rock, electric physical property and the rock of calculus are close, then this theory is equally applicable to water and calculus.So when rising edge is less than 500ns, the dielectric strength of saline is more than calculus, then discharge breakdown occurs inside calculus.
As it is shown in figure 5, be that high power gas switch described in the utility model triggers the voltage of system, current output waveform figure, wherein waveform 2 is current waveform figure, and waveform 1 is voltage oscillogram.In Fig. 5, the most every lattice of oscillogram represent 500ns, and the most every lattice represent 50kV, and the cycle is 3-5 microsecond, and rising edge is about 100ns.
This utility model has the advantage that
1) from energy point of view, the crushing energy needed for studying compared to other is less, specially about 0.15J.
2) from output frequency angle, study this high-voltage pulse generator output frequency compared to other and reach as high as 10KHz, and the output frequency of other similar achievements is the least.
3) from transmission line angle, compared to other research this utility model employing good economy performance twisted-pair feeders as transmission line, and the effect of electrode is taken into account.Other similar achievements need additionally to weld after using expensive coaxial line, and electrode tip loss.Just can be continuing with after only needing simple process (cutting loss part) after electrode tip of the present utility model loss.
4) from economy point, this utility model is more economically cheap, and cost of equipment is low.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the high voltage pulse generating means for calculus-smashing described in the utility model crushes calculus.
Fig. 2 is the block diagram of high-voltage pulse generator.
Fig. 3 is high-voltage pulse generator frequency control unit schematic diagram.
Fig. 4 is high-voltage pulse generator circuit diagram.
Fig. 5 is the voltage of high-voltage pulse generator, current output waveform.
Detailed description of the invention
This utility model combines detailed description of the invention and accompanying drawing further illustrates.
It is illustrated in figure 1 high pressure pulse discharge and crushes the schematic diagram of calculus.As it is shown in figure 1, described a kind of high voltage pulse generating means for calculus-smashing includes high-voltage pulse generator and twisted-pair feeder.High-voltage pulse generator in Fig. 1 is used for producing high voltage pulse, and pulse amplitude size is adjustable.Twisted-pair feeder is output lead, and the high voltage pulse directly high-voltage pulse generator produced exports calculus.
It is illustrated in figure 2 the structure chart of high-voltage pulse generator, mainly includes rectification unit, charhing unit, frequency control unit and High voltage output unit.It is characterized in that:
Rectification filtering unit, including bridge rectifier D V, the first potentiometer W1, the second potentiometer W2With electric capacity C1；First potentiometer W1It is serially connected in the positive pressure side of the power supply circuits after bridge rectifier rectification, the second potentiometer W2Then it is serially connected in the negative pressure end of the power supply circuits after bridge rectifier rectification.One end of capacitor C1 and the first potentiometer W1Connect, its other end then with the second potentiometer W2Connect.
Charhing unit, switchs (VT1), subordinate switch (VT2), diode VD1, inductance L and electric capacity C2 including higher level.After higher level switchs VT1, diode VD1, inductance L series connection, switch VT2 ground connection through subordinate.One end of electric capacity C2 is connected with any point on inductance L and transformator T primary coil line, the other end ground connection of electric capacity C2.
High voltage output unit is mainly high voltage pulse transformer T.The outfan of the secondary coil of transformator T uses twisted-pair feeder, and twisted-pair feeder termination contacts with calculus as electrode tip simultaneously.At laboratory, calculus being placed in saltwater environment, saline is both used for simulating human fluid's environment, is also used as dielectric.
Above-mentioned VT1, VT2 are insulating gate type field effect tube.
Claims (3)
1. the high voltage pulse generating means for calculus-smashing, including high-voltage pulse generator and twisted-pair feeder output lead, it is characterized in that described high-voltage pulse generator includes current rectifying and wave filtering circuit unit, charhing unit, control unit and High voltage output unit, rectification filtering unit, including bridge rectifier D V, the first potentiometer W1, the second potentiometer W2With electric capacity C1；First potentiometer W1It is serially connected in the positive pressure side of the power supply circuits after bridge rectifier rectification, the second potentiometer W2Then it is serially connected in the negative pressure end of the power supply circuits after bridge rectifier rectification, one end of capacitor C1 and the first potentiometer W1Connect, its other end then with the second potentiometer W2Connect and ground connection；
Charging circuit, VT1, subordinate switch VT2, diode VD1, inductance L and electric capacity C2 is switched including higher level, after higher level switchs VT1, diode VD1, inductance L series connection, VT2 ground connection is switched through subordinate, one end of electric capacity C2 is connected with any point on inductance L and transformator T primary coil line, the other end ground connection of electric capacity C2；
Control unit includes that controlling higher level switchs the circuit of VT1 and control the circuit of subordinate switch VT2, control unit specific works process is: control unit switchs mono-square-wave signal of VT1 to higher level in 30 microseconds to 150 microsecond range, higher level is made to switch Guan Bi, storage capacitors C2 is charged, after charging complete, after disconnection higher level switchs VT1, pass through idle hours, after about 1 microsecond, control unit is turned on to subordinate's switch mono-square-wave signal of VT2；
High voltage output unit includes high voltage pulse transformer T, and the output pulse of high-tension transformer is guided in calculus by twisted-pair feeder.
A kind of high voltage pulse generating means for calculus-smashing the most according to claim 1, it is characterised in that twisted-pair feeder output i.e. uses as electrode again as output lead.
A kind of high voltage pulse generating means for calculus-smashing the most according to claim 2, it is characterised in that described VT1、VT2For insulating gate type field effect tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996216.8U CN205514773U (en) | 2015-12-07 | 2015-12-07 | A high voltage pulse generating device for calculus is broken |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996216.8U CN205514773U (en) | 2015-12-07 | 2015-12-07 | A high voltage pulse generating device for calculus is broken |
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| Publication Number | Publication Date |
|---|---|
| CN205514773U true CN205514773U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520996216.8U Expired - Fee Related CN205514773U (en) | 2015-12-07 | 2015-12-07 | A high voltage pulse generating device for calculus is broken |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534565A (en) * | 2015-12-07 | 2016-05-04 | 沈阳彼得康医疗科技有限公司 | High-voltage pulse generating device for calculus smashing |
-
2015
- 2015-12-07 CN CN201520996216.8U patent/CN205514773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105534565A (en) * | 2015-12-07 | 2016-05-04 | 沈阳彼得康医疗科技有限公司 | High-voltage pulse generating device for calculus smashing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20161207 |