CN103028177B - Anesthesia evaporator exports concentration control apparatus - Google Patents
Anesthesia evaporator exports concentration control apparatus Download PDFInfo
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- CN103028177B CN103028177B CN201110290558.4A CN201110290558A CN103028177B CN 103028177 B CN103028177 B CN 103028177B CN 201110290558 A CN201110290558 A CN 201110290558A CN 103028177 B CN103028177 B CN 103028177B
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- valve seat
- outer yoke
- spool
- magnet
- pull bar
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Abstract
The present invention relates to a kind of anesthesia evaporator and export concentration control apparatus, comprise valve seat, spool, described valve seat side is provided with air inlet, and the opposite side relative with air inlet is provided with gas outlet, bottom is provided with carrier gas inlet, and the lower end of described spool is arranged in the carrier gas inlet of seat bottom portion; Also comprise outer yoke, inner yoke, Magnet, coil, guide pillar, pull bar, return spring, wherein said inner yoke is positioned in the middle part of outer yoke inner chamber, and described Magnet is arranged along outer yoke internal chamber wall, and described coil is between inner yoke and Magnet; Described valve seat top is connected with the bottom of described outer yoke, and described pull bar, return spring, spool are positioned at valve seat; Be provided with two guide holes be communicated with valve seat bottom described outer yoke, described guide pillar is movably arranged in described guide hole, and guide pillar upper end connects described coil, and lower end connects described pull bar, and described pull bar connects the upper end of described spool by described return spring.
Description
Technical field
The present invention relates to the control device that a kind of anesthesia evaporator exports anesthesia mixed gas concentration, belong to armarium manufacturing technology field.
Background technology
The concentration of anesthesia evaporator exports and controls to be in key position in whole anesthesia evaporator.As shown in Figure 1, be typically provided with air inlet 51, carrier gas port 53, gas outlet 52, gas flow is as shown in the direction of arrow in Fig. 1 for the principle of the concentration output-controlling device of anesthesia evaporator.After input gas is entered by air inlet, a part of gas is directly exported by gas outlet, and another part gas enters anesthetics volatilization room 54 through carrier gas inlet 53, carry anesthetic gases to export through carrier gas outlet 55, after two parts export gas and vapor permeation, form anesthesia gaseous mixture, be input to patient end.By controlling the size of carrier gas port opening degree, control the concentration of the anesthesia gaseous mixture exported.Tradition anesthesia evaporator concentration exports and controls, and namely the size of carrier gas port opening degree controls to adopt frame for movement, and belong to open-loop control technology, cannot accomplish dynamic compesated control to the factors vary such as flow, pressure, actual output accuracy, stability are perfect not.
Summary of the invention
A kind of anesthesia evaporator anesthetic gases is the object of the present invention is to provide to export the electronic-controlled installation of concentration, many feedback signals such as concentration, flow, temperature and ambient pressure variations can be exported according to reality and make timely compensation adjustment, thus accurate output anaesthetizes mist, meet induction, maintain the actual needs of anesthesia of patient state.
Technical scheme of the present invention is as follows:
Anesthesia evaporator exports concentration control apparatus, comprise valve seat, spool, described valve seat side is provided with air inlet, the opposite side relative with air inlet is provided with gas outlet, bottom is provided with carrier gas inlet, the lower end of described spool is arranged in the carrier gas inlet of seat bottom portion, it is characterized in that: also comprise outer yoke, inner yoke, Magnet, coil, guide pillar, pull bar, return spring, wherein said inner yoke is positioned in the middle part of outer yoke inner chamber, described Magnet is arranged along outer yoke internal chamber wall, and described coil is between inner yoke and Magnet; Described valve seat top is connected with the bottom of described outer yoke, and described pull bar, return spring, spool are positioned at valve seat; Be provided with two guide holes be communicated with valve seat bottom described outer yoke, described guide pillar is movably arranged in described guide hole, and guide pillar upper end connects described coil, and lower end connects described pull bar, and described pull bar connects the upper end of described spool by described return spring.
Technique scheme, in specific implementation process, also can supplement following technical characteristic:
The top of described outer yoke is provided with magnetic conduction joint, and described magnetic conduction joint is by the top seal of described outer yoke.
Described Magnet shape is tiles, and magnetizing direction is radial magnetizing, and one to N pole one is to S pole, and some blocks of Magnet are uniformly distributed along outer yoke internal chamber wall.
Sealing gasket is provided with between described spool and valve seat; Described sealing gasket can adopt tower sealing gasket.
Coil of the present invention is connected with CPU control unit.When coil is by electric current, coil produces pulling force upwards in magnetic field, and pull bar pulls spool to move upward and opens carrier gas inlet, and part carrier gas stream, by mixing with bypass behind anesthetis volatilization room, exports the anesthesia gaseous mixture needing concentration again.When air-flow, pressure, temperature fluctuation, CPU control unit is reacted rapidly, by the electric current of adjustment by coil, the amplitude that adjustment spool moves upward, control the size of carrier gas inlet opening degree, make by the load volume of carrier gas inlet adjusted, thus accurately export anesthesia mist, ensure the stability exporting concentration.
Accompanying drawing explanation
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.
Detailed description of the invention
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 in the middle part of outer yoke 1 inner chamber, described Magnet 3 is arranged along outer yoke 1 internal chamber wall, and described coil 4 is between inner yoke 2 and Magnet 3; Described valve seat 5 side is provided with air inlet 51, and the opposite side relative with air inlet is provided with gas outlet 52, is provided with carrier gas inlet 53 bottom valve seat 5, and valve seat 5 top is connected with the bottom of described outer yoke 1; Described pull bar 7, return spring 8, spool 9 are positioned at valve seat 5; Two guide holes be communicated with valve seat 5 are provided with bottom described outer yoke 1, described guide pillar 6 is movably arranged in described guide hole, guide pillar 6 upper end connects described coil 4, lower end connects described pull bar 7, described pull bar 7 connects the upper end of described spool 9 by described return spring 8, and the lower end of described spool 9 is arranged in the carrier gas inlet 53 bottom valve seat 5.
The setting of above-mentioned two guide holes, guide pillar, plays position-limiting action, can ensure that coil only moves up and down and can not rotate.
In specific implementation process, can arrange magnetic conduction joint 10 on the top of described outer yoke, described magnetic conduction joint 10 is by the top seal of described outer yoke 1.Form magnetic loop by outer yoke 1, inner yoke 2, magnetic conduction joint 10, effectively can reduce magnetic leakage, increase mechanism efficiency.
Described Magnet 3 shape is tiles, and magnetizing direction is radial magnetizing, and one to N pole one is to S pole, and some blocks of Magnet are uniformly distributed along outer yoke internal chamber wall.
Sealing gasket 11 is provided with between described spool 9 and valve seat 5; Described sealing gasket 11 can adopt tower sealing gasket.Tower sealing gasket adopts corrosion-resistant composite, is fixed between spool and valve seat, and spool is passed through and reciprocable by the through hole bottom sealing gasket, and neither affecting spool action again can security seal.
Work process of the present invention is as follows: be connected with CPU control unit by the wire of coil, by the break-make of CPU control unit control coil electric current and the size by electric current.When coil is not energized, carrier gas inlet is by seal spool.When the coil is energized, coil can produce pulling force upwards in magnetic field, and pulls spool to move upward by pull bar to open carrier gas inlet.Carrier gas inlet and anesthetics room of volatilizing communicates, input gas is inputted by the air inlet of valve seat side, wherein portion gas is exported by the gas outlet of valve seat opposite side, another part enters anesthetics volatilization room by carrier gas inlet, carry anesthetic gases and export output by carrier gas, two parts form certain density anesthesia gaseous mixture after exporting gas and vapor permeation and are transported to patient end.When air-flow, pressure, temperature fluctuation, the adjustment of CPU control unit is by the electric current of coil, the amplitude that adjustment spool moves upward, thus the size of adjustment carrier gas inlet opening degree, make by the load volume of carrier gas inlet adjusted, thus accurate output anaesthetizes mist, ensure the stability exporting concentration.When the coil is de-energized, carrier gas inlet is closed completely, exports gas not containing anesthetic gases.
Claims (5)
1. anesthesia evaporator exports concentration control apparatus, comprise valve seat, spool, described valve seat side is provided with air inlet, the opposite side relative with air inlet is provided with gas outlet, bottom is provided with carrier gas inlet, the lower end of described spool is arranged in the carrier gas inlet of seat bottom portion, it is characterized in that: also comprise outer yoke, inner yoke, Magnet, coil, guide pillar, pull bar, return spring, wherein said inner yoke is positioned in the middle part of outer yoke inner chamber, described Magnet is arranged along outer yoke internal chamber wall, and described coil is between inner yoke and Magnet; Described valve seat top is connected with the bottom of described outer yoke, and described pull bar, return spring, spool are positioned at valve seat; Be provided with two guide holes be communicated with valve seat bottom described outer yoke, described guide pillar is movably arranged in described guide hole, and guide pillar upper end connects described coil, and lower end connects described pull bar, and described pull bar connects the upper end of described spool by described return spring.
2. anesthesia evaporator according to claim 1 exports concentration control apparatus, and it is characterized in that: the top of described outer yoke is provided with magnetic conduction joint, described magnetic conduction joint is by the top seal of described outer yoke.
3. anesthesia evaporator according to claim 1 exports concentration control apparatus, and it is characterized in that: described Magnet shape is tiles, magnetizing direction is radial magnetizing, and one to N pole one is to S pole, and some blocks of Magnet are uniformly distributed along outer yoke internal chamber wall.
4. anesthesia evaporator according to claim 1 exports concentration control apparatus, it is characterized in that: be provided with sealing gasket between described spool and valve seat.
5. anesthesia evaporator according to claim 4 exports concentration control apparatus, 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 CN103028177A (en) | 2013-04-10 |
| CN103028177B true CN103028177B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110290558.4A Active CN103028177B (en) | 2011-09-29 | 2011-09-29 | Anesthesia evaporator exports concentration control apparatus |
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Citations (6)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100559049C (en) * | 2005-02-02 | 2009-11-11 | 藤仓橡胶工业株式会社 | Control valve for fluids |
-
2011
- 2011-09-29 CN CN201110290558.4A patent/CN103028177B/en active Active
Patent Citations (6)
| 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 |
| 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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|---|---|
| CN103028177A (en) | 2013-04-10 |
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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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