CN109953818A - The argon gas output control method of high frequency argon-gas knife - Google Patents
The argon gas output control method of high frequency argon-gas knife Download PDFInfo
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- CN109953818A CN109953818A CN201711401153.7A CN201711401153A CN109953818A CN 109953818 A CN109953818 A CN 109953818A CN 201711401153 A CN201711401153 A CN 201711401153A CN 109953818 A CN109953818 A CN 109953818A
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- valve
- argon
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- high frequency
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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
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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
- A61B18/1206—Generators therefor
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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
- A61B2018/00636—Sensing and controlling the application of energy
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- Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a kind of argon gas output control methods of high frequency argon-gas knife, high frequency argon-gas knife includes decompression venting valve, flow proportion valve, switch electromagnetic valve and single-chip microcontroller, flow proportion valve and switch electromagnetic valve are controlled by single-chip microcontroller, and the argon gas in argon gas gas source exports after passing sequentially through decompression venting valve, flow proportion valve and switch electromagnetic valve；When high frequency argon-gas knife is inactive, switch electromagnetic valve is in close state the output of cutting argon gas, the flow of flow proportion valve output is set, single-chip microcontroller goes to a suitable openings of sizes according to the stepper motor of the flow control flow proportion valve of setting, and when switch electromagnetic valve is in close state, the pressure of the output end of the pressure and decompression venting valve of the output end of flow proportion valve is identical always；After the starting of high frequency argon-gas knife, switch electromagnetic valve is opened, and moment of opening forms a big flow attack, this is impacted so that electric knife electrode and quickly form an argon gas separation layer around organizing, and hereafter will maintain to export stable flow.
Description
Technical field
The present invention relates to high frequency argon-gas knife technical fields, export controlling party more particularly to a kind of argon gas of high frequency argon-gas knife
Method.
Background technique
High frequency argon-gas knife is a kind of electric knife of a new generation, its working principle is that using electric knife provide high frequency,
High-tension current recycles the characteristic of argon gas to reach a kind of perfect clinical effectiveness.Argon gas is that a kind of performance is stable, non-toxic and tasteless
Inert gas is ionized to argon gas ion under high-frequency and high-voltage, and this argon gas ion has fabulous electric conductivity, can continuously transmit electricity
Stream.And argon gas inertia itself, the surface of a wound of cutting is isolated with the oxygen in surrounding air, greatly reduce tissue oxidation reaction and
It carbonizes (smoldering, eschar), reduces the temperature of the surface of a wound, the injury to tissue is reduced to minimum.
In actual use, it is necessary first to suitable argon gas output flow be set according to different operations, then started
When electric knife, argon gas will be sprayed from the spray orifice of electrode roots, form argon gas separation layer in electrode surrounding.Because just starting electric knife
When, surrounding them has no argon gas, and electrode has released high-frequency high-voltage current, although argon gas also synchronism output, not
Argon gas separation layer can be quickly formed, but needs the regular hour, general 1 second or so, if the argon flow small possible time is more
It is long, so the argon gas effect of initial start stage is not obvious.For effect to be reached, software can allow argon gas first to export in control
1~2 second, then restart electric knife, but so, the experience for operating doctor feels just bad, will mistakenly believe that electric knife
It is faulty.
Summary of the invention
The present invention is in view of the problems of the existing technology and insufficient, provides a kind of argon gas output controlling party of high frequency argon-gas knife
Method can enable the control of argon flow and output preferably achieve the effect that meet actual use.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides a kind of argon gas output control method of high frequency argon-gas knife, it is characterized in that, the high frequency argon-gas knife packet
Decompression venting valve, flow proportion valve, switch electromagnetic valve and single-chip microcontroller are included, which is opened by the flow proportion valve with this
Powered-down magnet valve electrical connection, the flow proportion valve and the switch electromagnetic valve are controlled and are driven by the single-chip microcontroller, in argon gas gas source
Argon gas exports after passing sequentially through the decompression venting valve, the flow proportion valve and the switch electromagnetic valve；
When the high frequency argon-gas knife is inactive, which is in close state the output of cutting argon gas, and the stream is arranged
The flow of proportioning valve output is measured, which goes to a conjunction according to the stepper motor of the flow control of the setting flow proportion valve
Suitable openings of sizes, when the switch electromagnetic valve is in close state, the pressure of the output end of the flow proportion valve and the decompression are steady
The pressure of the output end of pressure valve is identical always；
After high frequency argon-gas knife starting, which is opened, and the moment which opens forms one big
Flow attack, this impact so that electric knife electrode and organize around quickly form an argon gas separation layer, hereafter will maintain
Export stable flow.
Preferably, the pressure of the output end of the flow proportion valve and the decompression when the switch electromagnetic valve is in close state
The pressure of the output end of pressure maintaining valve is always 180kPa.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
It also only needs to make small change in mechanism without changing hardware and software using method of the invention.It can be not
Under the premise of increasing cost, it is properly arrived at expected purpose.
Detailed description of the invention
Fig. 1 is the structural block diagram of the high frequency argon-gas knife of present pre-ferred embodiments.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, high frequency argon-gas knife includes decompression venting valve 1, flow proportion valve 2, switch electromagnetic valve 3 and single-chip microcontroller 4,
The decompression venting valve 1 is electrically connected by the flow proportion valve 2 with the switch electromagnetic valve 3, the flow proportion valve 2 and the switch electromagnetism
Valve 3 is controlled and is driven by the single-chip microcontroller 4, and the argon gas in argon gas gas source passes sequentially through the decompression venting valve 1, the flow proportion valve
2 and the switch electromagnetic valve 3 after export.
Argon gas air source pressure intensity is in 200~600kPa；Decompression venting valve 1 stablizes output pressure in 180kPa；Flow proportional
Valve 2 is the openings of sizes that output is controlled with stepper motor rotation, and then achievees the purpose that adjust flow；Switch electromagnetic valve 3
For controlling the on-off of flow.
The argon gas output control method of high frequency argon-gas knife are as follows:
When high frequency argon-gas knife is inactive, switch electromagnetic valve is in close state the output of cutting argon gas.User can at this time
The flow of the output of flow proportion valve 2 is arranged, single-chip microcontroller 4 controls the stepper motor of flow proportion valve 2 according to the flow of setting
A suitable position (suitable openings of sizes) is gone to, this, which is equivalent to, adjusts a vapour lock, and vapour lock big flow is small, the small stream of vapour lock
Amount is big.Since the invariablenes pressure of liquid of the input terminal (i.e. the end A) of flow proportion valve 2 is 180kPa, so vapour lock (i.e. stepper motor position
Set) there is stringent one-to-one relationship with flow.Since flow proportion valve 2 is used merely to adjust uninterrupted, will not close completely
Extremely, so adjust anyway, as long as subsequent switch electromagnetic valve 3 is not opened, the output end (i.e. the end B) of flow proportion valve 2
Pressure is also always in 180kPa or so.
After the starting of high frequency argon-gas knife, switch electromagnetic valve 3 is opened, at this time since the pressure at the end B is also maintained at 180kPa, so
The larger flow output of moment is had, B side pressure can also decline rapidly by force, and output flow can also decline rapidly, will finally maintain
In a fixed flow, B side pressure is also maintained at by force a relatively low level at this time.
So after switch electromagnetic valve 3 is placed on flow proportion valve 2 a big flow will be formed in open moment
Impact, and this impact allows for quickly forming an argon gas separation layer around electric knife electrode and tissue, hereafter will maintain
Stable flow is exported, design requirement is also complied with.In conclusion effectively being solved under the premise of not influencing stability of flow output
The problem of initial start stage of having determined argon gas deficiency.
Generally conventional connection method is to do so before switch electromagnetic valve 3 is placed on flow proportion valve 2 and opening electromagnetism
The moment of valve not will form flow attack, so that flow is all relatively more steady during entire output.But argon-gas knife uses this
Good effect is just not achieved in the conventional connection of kind.
It also only needs to make small change in mechanism without changing hardware and software using method of the invention.It can be not
Under the premise of increasing cost, it is properly arrived at expected purpose.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (2)
1. a kind of argon gas output control method of high frequency argon-gas knife, which is characterized in that the high frequency argon-gas knife include decompression venting valve,
Flow proportion valve, switch electromagnetic valve and single-chip microcontroller, the decompression venting valve are electrically connected by the flow proportion valve and the switch electromagnetic valve
It connects, the flow proportion valve and the switch electromagnetic valve are controlled and driven by the single-chip microcontroller, and the argon gas in argon gas gas source passes sequentially through
It is exported after the decompression venting valve, the flow proportion valve and the switch electromagnetic valve；
When the high frequency argon-gas knife is inactive, which is in close state the output of cutting argon gas, and the flow-rate ratio is arranged
The flow of example valve output, the single-chip microcontroller go to one suitably according to the stepper motor of the flow control of the setting flow proportion valve
Openings of sizes, the pressure of the output end of the flow proportion valve and the decompression venting valve when the switch electromagnetic valve is in close state
Output end pressure it is identical always；
After high frequency argon-gas knife starting, which is opened, and the moment which opens forms a big stream
Stroke, this impact so that electric knife electrode and organize around quickly form an argon gas separation layer, hereafter will maintain to export
Stable flow.
2. the argon gas output control method of high frequency argon-gas knife as described in claim 1, which is characterized in that in the switch electromagnetic valve
The pressure of the output end of the pressure and decompression venting valve of the output end of the flow proportion valve is always when being in close state
180kPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401153.7A CN109953818A (en) | 2017-12-22 | 2017-12-22 | The argon gas output control method of high frequency argon-gas knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401153.7A CN109953818A (en) | 2017-12-22 | 2017-12-22 | The argon gas output control method of high frequency argon-gas knife |
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| Publication Number | Publication Date |
|---|---|
| CN109953818A true CN109953818A (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401153.7A Pending CN109953818A (en) | 2017-12-22 | 2017-12-22 | The argon gas output control method of high frequency argon-gas knife |
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| CN (1) | CN109953818A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19524645C2 (en) * | 1995-07-06 | 2002-11-28 | Soering Gmbh | Safety gas system for HF surgery |
| CN204072324U (en) * | 2014-10-21 | 2015-01-07 | 南京亿高微波系统工程有限公司 | A kind of argon-gas knife is with controlling cabinet |
| CN106102625A (en) * | 2014-01-23 | 2016-11-09 | 兰德股份公司 | Athermal plasma |
| US9814520B2 (en) * | 2011-03-25 | 2017-11-14 | Minerva Surgical, Inc. | System and method for endometrial ablation |
-
2017
- 2017-12-22 CN CN201711401153.7A patent/CN109953818A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19524645C2 (en) * | 1995-07-06 | 2002-11-28 | Soering Gmbh | Safety gas system for HF surgery |
| US9814520B2 (en) * | 2011-03-25 | 2017-11-14 | Minerva Surgical, Inc. | System and method for endometrial ablation |
| CN106102625A (en) * | 2014-01-23 | 2016-11-09 | 兰德股份公司 | Athermal plasma |
| CN204072324U (en) * | 2014-10-21 | 2015-01-07 | 南京亿高微波系统工程有限公司 | A kind of argon-gas knife is with controlling cabinet |
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Application publication date: 20190702 |