CN201861755U - Medical high-frequency electric knife - Google Patents
Medical high-frequency electric knife Download PDFInfo
- Publication number
- CN201861755U CN201861755U CN201020637314XU CN201020637314U CN201861755U CN 201861755 U CN201861755 U CN 201861755U CN 201020637314X U CN201020637314X U CN 201020637314XU CN 201020637314 U CN201020637314 U CN 201020637314U CN 201861755 U CN201861755 U CN 201861755U
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- high frequency
- singlechip
- amplification circuit
- power amplification
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Abstract
The utility model relates to a medical high-frequency electric knife, which has a low-temperature ablation function and is provided with a master singlechip control system consisting of a master singlechip and a slave singlechip. The master singlechip is connected with an input control circuit and a display. The slave singlechip is connected with a power amplification circuit. The power amplification circuit is connected with a high frequency source. The power amplification circuit is connected with a high frequency electrode of a high frequency surgical instrument part. The master singlechip adopts a 51-series singlechip. The slave singlechip adopts a 58-series singlechip. The action principle of the low-temperature ablation function is that a high frequency current is inducted into a lesion site through the electrode to make the temperature of the local tissue risen and generate local coagulation necrosis so as to fulfill the aim of low-temperature ablation. The high frequency current which is inducted in through the electrode has a small lesion range and cannot cause damage to a human body. The low-temperature ablation has the advantages of minimally invasive property, high precision and good hemostasis effect and digital power adjustment is beneficial for selecting a suitable power.
Description
Technical field
This utility model belongs to Electric scalpel, particularly a kind of medical high frequency electric knife with cryogenic ablation function.
Background technology
High frequency electric knife is that the mechanical scalpel of a kind of replacement is organized cutting and hemostatic Electrosurgical instrument as a kind of Electrosurgical instrument.Along with the development of medical science and technology, the therapeutic effect to product has proposed more and more higher requirement clinically, makes product that further development arranged.
The utility model content
Technical problem to be solved in the utility model is: a kind of medical high frequency electric knife with cryogenic ablation function is provided.Overcome the high frequency electric knife the deficiencies in the prior art,
The technical solution of the utility model is:
A kind of medical high frequency electric knife with cryogenic ablation function is characterized in that: by by host scm and the host scm control system formed from single-chip microcomputer; Host scm connects input control circuit and display, connects power amplification circuit from single-chip microcomputer, and power amplification circuit connects high frequency source, and power amplification circuit connects the high-frequency electrode of high frequency electro surgical unit part.
Host scm adopts 51 series monolithics, adopts 58 series monolithics from single-chip microcomputer.
Each circuit is powered by power supply.
This utility model effect is:
The action principle of cryogenic ablation function is that high frequency electric imports diseased region through electrode, and the local organization temperature is raise, and produces the local solidification necrosis, thereby reaches the purpose of cryogenic ablation.Through the imported high frequency electric of electrode, damage range is little, can not damage human body.
The cryogenic ablation advantage: little traumatic, the degree of accuracy height, digitized power adjustments helps selecting suitable power, and haemostatic effect is good.
Description of drawings
Fig. 1 is the electric theory diagram with medical high frequency electric knife of cryogenic ablation function
Fig. 2 is the use flow chart with medical high frequency electric knife of cryogenic ablation function
Fig. 3 is the Single Chip Microcomputer (SCM) system structure chart with medical high frequency electric knife of cryogenic ablation function
The specific embodiment
The medical high frequency electric knife with cryogenic ablation function as shown in Figure 1 mainly is made up of single-chip computer control system, high frequency source, input control section, display part, power amplifier part, power pack, high frequency electro surgical unit etc.
Single-chip computer control system: Single Chip Microcomputer (SCM) system comprises a main single-chip microcomputer system, two from Single Chip Microcomputer (SCM) system, main single-chip microcomputer system is finished the control of input-output system, provide display system required signal, pass through P3.0, P3.1 with keep communicate by letter from single-chip microcomputer, control from Single Chip Microcomputer (SCM) system, and receive the signal that feeds back from Single Chip Microcomputer (SCM) system; One of them mainly finishes the control of high-frequency signal from Single Chip Microcomputer (SCM) system, a size of controlling high frequency power output from Single Chip Microcomputer (SCM) system by the signal that receives master control system.
Single-chip computer control system: the host scm control system adopts 51 series monolithics of performance brilliance, adopt 58 series monolithics from single-chip microcomputer, it has the program's memory space of larger capacity, the speed of service, function, internal resource and addressing range, extensibility have had than in the past single-chip microcomputer and have increased substantially, and can satisfy the needs of product development fully.
High frequency source is produced by crystal oscillator, and the frequency that high frequency source adopts quartz oscillator to produce through frequency division, provides high-frequency signal required frequency.
High frequency electric knife have purely cut, mix cut, electricity coagulates, fulgerize, cryogenic ablation, function such as bipolar, the input control section comprises the selection of each function, the startup that the detection of the adjusting of each function power, the control of foot switch, neutral pole plate and power are exported stops.
The display part is used to show each functional status, alarm condition and corresponding performance number.
Power amplifying part is made up of elementary amplification, secondary amplification two parts, and elementary being enlarged into encouraged amplification, is used for high-frequency signal is amplified the signal demand that reaches expection; Secondaryly be enlarged into power amplification, by the control of Single Chip Microcomputer (SCM) system, the output desired power.
Power pack is responsible for providing needed various combined-voltage to each several part.
High frequency electro surgical unit is the applying portion of electric knife, is used to export high-frequency signal.
The input control section comprises the input of button, and the startup of foot switch stops, bat-handle switch startup stop the monitoring of centering pole plate break-make and the monitoring of contact quality.Wherein the input of button comprises the selection of each function of electric knife and presetting of corresponding power.Button, foot switch are transferred to single-chip microcomputer through latch, and the signal that the single-chip microcomputer analysis collects is made corresponding reaction.Bat-handle switch, neutral pole plate through isolating, will start earlier then accordingly, stop signal sends the output that CPU controls electric knife to.
The high-frequency signal that high frequency source produces, the output control signal that provides with CPU with, produce high frequency and export needed signal, be the input signal of power amplifier part, this signal produces the needed signal of high-power V metal-oxide-semiconductor field effect transistor by the class B push-pull power amplification, the high voltage power supply of CPU control, signal is amplified,, obtain the needed signal of high frequency electro surgical unit (being applying portion) through isolating.Excellent characteristics such as the VMOS field effect transistor is a kind of efficient, the device for power switching that grows up after MOSFET, and it has little, the withstand voltage height of drive current, operating current is big, output is high, the good linearity of mutual conductance, switching speed are fast.
Power pack comprises low pressure and high pressure two parts.Low-pressure section adopts high-performance fixed frequency current mode controller spare UC3844, produce 5V, ± 12V, 15V low-tension supply, use for each several part; High-pressure section adopts the pulse width modulation circuit of fixed frequency, provides control signal by single-chip microcomputer, realizes the control to high-voltage signal.
Claims (2)
1. medical high frequency electric knife is characterized in that: by by host scm and the host scm control system formed from single-chip microcomputer; Host scm connects input control circuit and display, connects power amplification circuit from single-chip microcomputer, and power amplification circuit connects high frequency source, and power amplification circuit connects the high-frequency electrode of high frequency electro surgical unit part.
2. medical high frequency electric knife according to claim 1 is characterized in that: host scm adopts 51 series monolithics, adopts 58 series monolithics from single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020637314XU CN201861755U (en) | 2010-12-01 | 2010-12-01 | Medical high-frequency electric knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020637314XU CN201861755U (en) | 2010-12-01 | 2010-12-01 | Medical high-frequency electric knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201861755U true CN201861755U (en) | 2011-06-15 |
Family
ID=44132923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020637314XU Expired - Fee Related CN201861755U (en) | 2010-12-01 | 2010-12-01 | Medical high-frequency electric knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201861755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399603A (en) * | 2013-08-22 | 2013-11-20 | 北京康威电子技术有限公司 | Closed-loop feedback loop system used for surgical electrotome |
| CN105559882A (en) * | 2015-12-15 | 2016-05-11 | 江苏邦士医疗科技有限公司 | Low-temperature plasma radio-frequency surgery system |
| CN109856496A (en) * | 2019-02-25 | 2019-06-07 | 绵阳立德电子股份有限公司 | A kind of neutral electrode monitoring device |
-
2010
- 2010-12-01 CN CN201020637314XU patent/CN201861755U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399603A (en) * | 2013-08-22 | 2013-11-20 | 北京康威电子技术有限公司 | Closed-loop feedback loop system used for surgical electrotome |
| CN105559882A (en) * | 2015-12-15 | 2016-05-11 | 江苏邦士医疗科技有限公司 | Low-temperature plasma radio-frequency surgery system |
| CN109856496A (en) * | 2019-02-25 | 2019-06-07 | 绵阳立德电子股份有限公司 | A kind of neutral electrode monitoring device |
| CN109856496B (en) * | 2019-02-25 | 2020-12-15 | 绵阳立德电子股份有限公司 | Neutral electrode monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20111201 |