CN103028177A - Anesthesia evaporator output consistency control device - Google Patents
Anesthesia evaporator output consistency control device Download PDFInfo
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- CN103028177A CN103028177A CN2011102905584A CN201110290558A CN103028177A CN 103028177 A CN103028177 A CN 103028177A CN 2011102905584 A CN2011102905584 A CN 2011102905584A CN 201110290558 A CN201110290558 A CN 201110290558A CN 103028177 A CN103028177 A CN 103028177A
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- valve seat
- outer yoke
- magnet
- spool
- coil
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Abstract
An anesthesia evaporator output consistency control device is characterized by comprising an outer magnet yoke, an inner magnet yoke, a magnet, a coil, a valve seat, guide columns, a draw bar, a reset spring and a valve core. The inner magnet yoke is located in the middle portion of an inner cavity of the outer magnet yoke. The magnet is arranged along an inner cavity wall of the outer magnet yoke. The coil is located between the inner magnet yoke and the magnet. An air inlet is formed in one side of the valve seat, an air outlet is formed in the other side, opposite to the air inlet, of the valve seat, a carrier gas inlet is formed in the bottom of the valve seat and the upper portion of the valve seat is connected with the bottom of the outer magnet yoke. The draw bar, the reset spring and the valve core are located in the valve seat. Two guide holes communicated with the valve seat are formed in the bottom of the outer magnet yoke. The guide columns are movably arranged in the guide holes. The upper end of each guide column is connected with the coil and the lower end of the each guide column is connected with the draw bar. The draw bar is connected with the upper end of the valve core through the reset spring and the lower end of the valve core is located in a valve opening at the bottom of the valve seat.
Description
Technical field
The present invention relates to a kind of control device of anesthesia evaporator output anesthesia mixed gas concentration, belong to armarium manufacturing technology field.
Background technology
The concentration output of anesthesia evaporator is controlled in the whole anesthesia evaporator and is in key position.The principle of the concentration output-controlling device of anesthesia evaporator is typically provided with air inlet 51, carrier gas port 53, gas outlet 52 as shown in Figure 1, and gas flow is shown in the direction of arrow among Fig. 1.After input gas was entered by air inlet, a part of gas was directly by gas outlet output, and another part gas enters anesthetics volatilization chamber 54 through carrier gas inlet 53, carry anesthetic gases through carrier gas outlet 55 outputs, after two parts output gas mixes, form the anesthesia gaseous mixture, be input to patient end.By the size of control carrier gas port opening degree, the concentration of the anesthesia gaseous mixture of control output.Tradition anesthesia evaporator concentration output control, i.e. frame for movement is adopted in the size of carrier gas port opening degree control, belongs to open-loop control technology, can't accomplish dynamic compensation control to factors vary such as flow, pressure, and actual output accuracy, stability are perfect not.
Summary of the invention
The object of the present invention is to provide a kind of electronic-controlled installation of anesthesia evaporator anesthetic gases output concentration, can export many feedback signals such as concentration, flow, temperature and ambient pressure variations according to reality and make timely compensation adjustment, thereby accurate output anesthesia mist satisfies the actual needs of inducing, keep the anesthesia of patient state.
Technical scheme of the present invention is as follows:
Anesthesia evaporator output concentration control apparatus, it is characterized in that: comprise outer yoke, inner yoke, Magnet, coil, valve seat, guide pillar, pull bar, return spring, spool, wherein said inner yoke is positioned at outer yoke inner chamber middle part, described Magnet arranges along the outer yoke internal chamber wall, and described coil is between inner yoke and Magnet; Described valve seat one side is provided with air inlet, and the opposite side relative with air inlet is provided with the gas outlet, and the bottom is provided with carrier gas inlet, and top is connected with the bottom of described outer yoke; Described pull bar, return spring, spool are positioned at valve seat; Described outer yoke bottom is provided with two guide holes that are communicated with valve seat, described guide pillar is movably arranged in the described guide hole, the guide pillar upper end connects described coil, the lower end connects described pull bar, described pull bar connects the upper end of described spool by described return spring, and the lower end of described spool is arranged in the carrier gas inlet of valve cup bottom section.
Technique scheme also can be replenished following technical characterictic in specific implementation process:
The top of described outer yoke is provided with the magnetic conduction joint, and described magnetic conduction joint is with the top seal of described outer yoke.
Described Magnet is shaped as a watt shape, and magnetizing direction is radial magnetizing, and one to the N utmost point one to the S utmost point, and some blocks of Magnet evenly distribute along the outer yoke internal chamber wall.
Be provided with sealing gasket between described spool and the valve seat; Described sealing gasket can adopt tower sealing gasket.
Coil of the present invention is connected with the CPU control unit.When coil when the electric current, coil produces pulling force upwards in magnetic field, pull bar pulling spool moves upward and opens carrier gas inlet, part carrier gas air-flow mixes with bypass after by anesthetis volatilization chamber again, exports the anesthesia gaseous mixture that needs concentration.When air-flow, pressure, temperature fluctuation, the CPU control unit is reacted rapidly, by adjusting the electric current by coil, adjust the amplitude that spool moves upward, the size of control carrier gas inlet opening degree, make by the load volume of carrier gas inlet adjusted, thereby output anesthesia mist accurately guarantees the stability of output concentration.
Description of drawings
Fig. 1 is the schematic diagram of the concentration output-controlling device of anesthesia evaporator
Fig. 2 is the longitudinal profile structural representation of a kind of embodiment of the present invention.
The specific embodiment
As shown in Figure 2, the present invention includes outer yoke 1, inner yoke 2, Magnet 3, coil 4, valve seat 5, guide pillar 6, pull bar 7, return spring 8, spool 9, wherein said inner yoke 2 is positioned at outer yoke 1 inner chamber middle part, described Magnet 3 is along outer yoke 1 internal chamber wall setting, and described coil 4 is between inner yoke 2 and Magnet 3; Described valve seat 5 one sides are provided with air inlet 51, and the opposite side relative with air inlet is provided with gas outlet 52, and valve seat 5 bottoms are provided with carrier gas inlet 53, and valve seat 5 tops are connected with the bottom of described outer yoke 1; Described pull bar 7, return spring 8, spool 9 are positioned at valve seat 5; Described outer yoke 1 bottom is provided with two guide holes that are communicated with valve seat 5, described guide pillar 6 is movably arranged in the described guide hole, guide pillar 6 upper ends connect described coil 4, the lower end connects described pull bar 7, described pull bar 7 is by the upper end of the described spool 9 of described return spring 8 connections, and the lower end of described spool 9 is arranged in the carrier gas inlet 53 of valve seat 5 bottoms.
The setting of above-mentioned two guide holes, guide pillar plays position-limiting action, can guarantee that coil only moves up and down and can not rotate.
In the specific implementation process, magnetic conduction joint 10 can be set on the top of described outer yoke, described magnetic conduction joint 10 is with the top seal of described outer yoke 1.Form the closed loop magnetic circuit by outer yoke 1, inner yoke 2, magnetic conduction joint 10, can effectively reduce magnetic leakage, increase mechanism efficiency.
Described Magnet 3 is shaped as a watt shape, and magnetizing direction is radial magnetizing, and one to the N utmost point one to the S utmost point, and some blocks of Magnet evenly distribute along the outer yoke internal chamber wall.
Be provided with sealing gasket 11 between described spool 9 and the valve seat 5; Described sealing gasket 11 can adopt tower sealing gasket.Tower sealing gasket adopts corrosion-resistant composite, be fixed between spool and the valve seat, spool by the through hole of sealing gasket bottom by and can move back and forth, but neither affect again security seal of spool action.
Work process of the present invention is as follows: the wire of coil is connected the break-make by CPU control unit control coil electric current and the size by electric current with the CPU control unit.When coil was not switched on, carrier gas inlet was by seal spool.When coil electricity, coil can produce pulling force upwards in magnetic field, and moves upward by pull bar pulling spool and to open carrier gas inlet.Carrier gas inlet communicates with anesthetics volatilization chamber, input gas is by the air inlet input of valve seat one side, wherein portion gas is by the gas outlet output of valve seat opposite side, another part enters anesthetics volatilization chamber by carrier gas inlet, carry anesthetic gases by carrier gas outlet output, form certain density anesthesia gaseous mixture after two parts output gas mixes and be transported to patient end.When air-flow, pressure, temperature fluctuation, the CPU control unit is adjusted the electric current by coil, adjust the amplitude that spool moves upward, thereby adjust the size of carrier gas inlet opening degree, make by the load volume of carrier gas inlet adjusted, thereby accurate output anesthesia mist, the stability of assurance output concentration.When coil blackout, carrier gas inlet is closed fully, and output gas does not contain anesthetic gases.
Claims (5)
1. anesthesia evaporator is exported concentration control apparatus, it is characterized in that: comprise outer yoke, inner yoke, Magnet, coil, valve seat, guide pillar, pull bar, return spring, spool, wherein said inner yoke is positioned at outer yoke inner chamber middle part, described Magnet arranges along the outer yoke internal chamber wall, and described coil is between inner yoke and Magnet; Described valve seat one side is provided with air inlet, and the opposite side relative with air inlet is provided with the gas outlet, and the bottom is provided with carrier gas inlet, and top is connected with the bottom of described outer yoke; Described pull bar, return spring, spool are positioned at valve seat; Described outer yoke bottom is provided with two guide holes that are communicated with valve seat, described guide pillar is movably arranged in the described guide hole, the guide pillar upper end connects described coil, the lower end connects described pull bar, described pull bar connects the upper end of described spool by described return spring, and the lower end of described spool is arranged in the valve port of valve cup bottom section.
2. anesthesia evaporator according to claim 1 is exported concentration control apparatus, and it is characterized in that: the top of described outer yoke is provided with the magnetic conduction joint, and described magnetic conduction joint is with the top seal of described outer yoke.
3. anesthesia evaporator according to claim 1 is exported concentration control apparatus, and it is characterized in that: described Magnet is shaped as a watt shape, and magnetizing direction is radial magnetizing, and one to the N utmost point one to the S utmost point, and some blocks of Magnet evenly distribute along the outer yoke internal chamber wall.
4. anesthesia evaporator output concentration control apparatus according to claim 1 is characterized in that: be provided with sealing gasket between described spool and the valve seat.
5. anesthesia evaporator according to claim 4 is exported concentration control apparatus, and it is characterized in that: described sealing gasket is tower sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110290558.4A CN103028177B (en) | 2011-09-29 | 2011-09-29 | Anesthesia evaporator exports concentration control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110290558.4A CN103028177B (en) | 2011-09-29 | 2011-09-29 | Anesthesia evaporator exports concentration control apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103028177A true CN103028177A (en) | 2013-04-10 |
| CN103028177B CN103028177B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110290558.4A Active CN103028177B (en) | 2011-09-29 | 2011-09-29 | Anesthesia evaporator exports concentration control apparatus |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4022147A1 (en) * | 1990-07-11 | 1992-01-16 | Draegerwerk Ag | Anaesthetic humidifier with movable valve - adjusts throughflow of carrier gas enriched with anaesthetic vapour |
| DE4105228A1 (en) * | 1991-02-20 | 1992-08-27 | Draegerwerk Ag | Operating anaesthetic vaporiser for low boiling point narcotics - using control unit to cool vaporising chamber so that internal pressure drops below that in narcotic gas duct |
| GB2279016A (en) * | 1993-06-14 | 1994-12-21 | Blease Medical Equipment Limit | Vaporizer overfill safety device |
| EP0968735A1 (en) * | 1998-07-02 | 2000-01-05 | Instrumentarium Oy | Ventilator for intensified breathing and valve |
| WO2006082703A1 (en) * | 2005-02-02 | 2006-08-10 | Fujikura Rubber Ltd. | Fluid control valve |
| CN201735041U (en) * | 2010-08-03 | 2011-02-09 | 北京航天长峰股份有限公司 | Microcomputer controlled expiratory valve |
| CN201921250U (en) * | 2010-09-26 | 2011-08-10 | 深圳市百格医疗技术有限公司 | Active respiration control device for anesthesia respirator |
-
2011
- 2011-09-29 CN CN201110290558.4A patent/CN103028177B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4022147A1 (en) * | 1990-07-11 | 1992-01-16 | Draegerwerk Ag | Anaesthetic humidifier with movable valve - adjusts throughflow of carrier gas enriched with anaesthetic vapour |
| DE4105228A1 (en) * | 1991-02-20 | 1992-08-27 | Draegerwerk Ag | Operating anaesthetic vaporiser for low boiling point narcotics - using control unit to cool vaporising chamber so that internal pressure drops below that in narcotic gas duct |
| GB2279016A (en) * | 1993-06-14 | 1994-12-21 | Blease Medical Equipment Limit | Vaporizer overfill safety device |
| EP0968735A1 (en) * | 1998-07-02 | 2000-01-05 | Instrumentarium Oy | Ventilator for intensified breathing and valve |
| WO2006082703A1 (en) * | 2005-02-02 | 2006-08-10 | Fujikura Rubber Ltd. | Fluid control valve |
| CN201735041U (en) * | 2010-08-03 | 2011-02-09 | 北京航天长峰股份有限公司 | Microcomputer controlled expiratory valve |
| CN201921250U (en) * | 2010-09-26 | 2011-08-10 | 深圳市百格医疗技术有限公司 | Active respiration control device for anesthesia respirator |
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| Publication number | Publication date |
|---|---|
| CN103028177B (en) | 2015-09-30 |
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Effective date of registration: 20221121 Address after: Building 2A, No. 77, Jinke South 2nd Road, Jinniu Hi tech Industrial Park, Chengdu, Sichuan 610036 Patentee after: Aerospace Changfeng Medical Technology (Chengdu) Co.,Ltd. Address before: 100854, Beijing Yongding Road, No. 51, Haidian District Aerospace digital control building Patentee before: BEIJING AEROSPACE CHANGFENG Co.,Ltd. |
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