CN201073339Y - Minisize bipolar electrocoagulator - Google Patents
Minisize bipolar electrocoagulator Download PDFInfo
- Publication number
- CN201073339Y CN201073339Y CNU2007200944155U CN200720094415U CN201073339Y CN 201073339 Y CN201073339 Y CN 201073339Y CN U2007200944155 U CNU2007200944155 U CN U2007200944155U CN 200720094415 U CN200720094415 U CN 200720094415U CN 201073339 Y CN201073339 Y CN 201073339Y
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- circuit
- high frequency
- frequency conversion
- conversion circuit
- current
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Abstract
The utility model relates to a miniature bipolar electrical coagulator, belonging to the haemostat technical field. The utility model is characterized in that a direct current power supply is connected with a rectifier and filter circuit, which is connected with a high frequency oscillating circuit and a voltage regulating circuit, the voltage regulating circuit is connected with a high frequency conversion circuit, the high frequency oscillation circuit is connected with the high frequency conversion circuit, the high frequency conversion circuit is connected with a current feedback circuit, the current feedback circuit is connected with the high frequency oscillating circuit, and the high frequency conversion circuit is connected with an output electrode of the bipolar electrical coagulator. The utility model has the advantages of possessing the novel structure specialized for the microscopic operation and the small animal experiment, having precise condensing target and stable power control, and realizing fast response speed, compact size, light weight, low cost and high reliability because of adopting the single chip integrated circuit and controlling condensing current by modulating the pulse width.
Description
Technical field
This utility model belongs to a kind of haemostat, is applied in microsurgery, the toy experiment.
Background technology
In microsurgery, in the toy experiment, the hemorrhage of blood capillary is difficult for hemostasis by ligation, coagulates if adopt unipolar electrocoagulator or high-power bipolar electrocoagulator to carry out electricity, can produce more widely and burn.
Summary of the invention
This utility model provides a kind of miniature bipolar electrocoagulator, carries out electricity with fixed attention to solve at present with unipolar electrocoagulator or high-power bipolar electrocoagulator, can produce the problem of burn more widely.The technical scheme that this utility model is taked is: dc source is connected with current rectifying and wave filtering circuit, this current rectifying and wave filtering circuit is connected with high-frequency oscillating circuits, this current rectifying and wave filtering circuit also is connected with voltage regulator circuit, this voltage regulator circuit is connected with the high frequency conversion circuit, this high-frequency oscillating circuits is connected with the high frequency conversion circuit, this high frequency conversion circuit is connected with current feedback circuit, and this current feedback circuit is connected with this high-frequency oscillating circuits, this high frequency conversion circuit and bipolar coagulation output electrode.
This utility model operation principle is, 20V dc source one tunnel is powered to high-frequency oscillating circuits through current rectifying and wave filtering circuit, and another road is behind voltage regulator circuit, as the power supply of high frequency conversion circuit; High-frequency oscillating circuits produces the high-frequency signal of 600kHz, this signal drives the high frequency conversion circuit, make it to export the high frequency electric of 600kHz, the high frequency electric of 600kHz is sent to tissue by the bipolar coagulation output electrode, molecule in the tissue is generated heat because of producing the higher-order of oscillation, thereby reach the hemostatic purpose of condensing; Current feedback circuit is controlled the intensity of high frequency output current.
The utility model has the advantages that novel structure, aim at microsurgery and toy and test and design; It is big to have overcome unipolar electrocoagulator and the high-power bipolar electrocoagulator area that condenses, and easily produces the shortcoming of large-area burns.The target of condensing is accurate, and power control is stable; Adopt monolithic integrated optical circuit, by the pulse width modulation controlled electric current that condenses, it is fast to have response speed, can realize pulse current control one by one, and volume is little, in light weight, cost is low, the reliability advantages of higher.
Description of drawings
Fig. 1 is this utility model theory diagram.
Fig. 2 is this utility model circuit theory diagrams.
The specific embodiment
As Fig. 1, dc source 1 is connected with current rectifying and wave filtering circuit 2, this current rectifying and wave filtering circuit is connected with high-frequency oscillating circuits 4, this current rectifying and wave filtering circuit also is connected with voltage regulator circuit 3, this voltage regulator circuit is connected with high frequency conversion circuit 5, and this high-frequency oscillating circuits is connected with the high frequency conversion circuit, and this high frequency conversion circuit is connected with current feedback circuit 6, this current feedback circuit is connected with this high-frequency oscillating circuits, this high frequency conversion circuit and bipolar coagulation output electrode 7.
As Fig. 2, capacitor C1 carries out filtering to the 20V power supply.IC 1, resistance R 1, potentiometer P1, capacitor C 2 constitutes three end regulated power supplies, controls the output of miniature bipolar electrocoagulator by the output voltage of regulating three end regulated power supplies, and the output of three end regulated power supplies is added on the primary coil of high frequency transformer.The oscillating circuit of resistance R 2, capacitor C 3 and IC 2 inside constitutes agitator, produces the oscillator signal of frequency 600kHz.The logic circuit of this signal by IC2 inside is respectively in 11 feet and the 14 foot output frequency 300kHz driven pulses of IC2.The pulse of 300kHz driven is distinguished driving switch pipe Q1, Q2 through resistance R 3 and R4.Because switching tube Q1, Q2 are parallel connections, therefore on the negative pole of diode D1, produce the switching pulse of 600kHz.When this pulse was low level, the output of three end regulated power supplies formed the loop through primary coil, the diode D1 of transformator T1, and the primary current of T1 is linear to be increased, and primary current is stored with the magnetic energy form in transformator T1; When this pulse was high level, the loop, former limit of transformator T1 was closed, and the magnetic energy of storing among the T1 discharges by output circuit, and capacitor C5, C6 play the stopping direct current effect of output circuit.The existence of diode D1, allowing the original edge voltage of transformator T1 is negative value in oscillatory process.Resistance R 5, R6 and capacitor C 4 constitute the current sample filter circuit, high circuit is sampled to the electric current on the former limit of transformator, by the comparison circuit of IC 2 inside, carries out pulse width modulation controlled, can realize pulse current control one by one, to stablize the output current of miniature bipolar coagulation.This circuit also plays the output short circuit protection effect simultaneously.The bipolar coagulation electrode can be shared by two tweezers, will insulate between two tweezer sheets, and tweezer point width is about 0.3mm, and the tweezer insied width is 0.3mm, the smooth no rag of tweezer point medial surface.Output electrode also can be made up of the syringe needle of two mutually insulateds.
Claims (1)
1. miniature bipolar electrocoagulator, it is characterized in that: dc source is connected with current rectifying and wave filtering circuit, this current rectifying and wave filtering circuit is connected with high-frequency oscillating circuits, this current rectifying and wave filtering circuit also is connected with voltage regulator circuit, this voltage regulator circuit is connected with the high frequency conversion circuit, and this high-frequency oscillating circuits is connected with the high frequency conversion circuit, and this high frequency conversion circuit is connected with current feedback circuit, this current feedback circuit is connected with this high-frequency oscillating circuits, this high frequency conversion circuit and bipolar coagulation output electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200944155U CN201073339Y (en) | 2007-09-28 | 2007-09-28 | Minisize bipolar electrocoagulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200944155U CN201073339Y (en) | 2007-09-28 | 2007-09-28 | Minisize bipolar electrocoagulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201073339Y true CN201073339Y (en) | 2008-06-18 |
Family
ID=39518601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200944155U Expired - Fee Related CN201073339Y (en) | 2007-09-28 | 2007-09-28 | Minisize bipolar electrocoagulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201073339Y (en) |
-
2007
- 2007-09-28 CN CNU2007200944155U patent/CN201073339Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |