CN103182132B - There is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator - Google Patents
There is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator Download PDFInfo
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- CN103182132B CN103182132B CN201110456169.4A CN201110456169A CN103182132B CN 103182132 B CN103182132 B CN 103182132B CN 201110456169 A CN201110456169 A CN 201110456169A CN 103182132 B CN103182132 B CN 103182132B
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Abstract
The present invention discloses a kind of temperature-sensing valve with flow-compensated function, comprise saddle, portable plate, it forms the air-flow gap that air feed flows through each other, saddle inside has gas vestibule, gas vestibule communicates with air-flow gap, when live gas import department flow increases, air-flow gap diminishes, and reduces to make the fresh gas flow of inflow temperature-sensing valve; When live gas import department flow reduces, air-flow gap increases, and to make the fresh gas flow of inflow temperature-sensing valve increase, this temperature-sensing valve has the advantage that structure is simple, be easy to processing, easy accessibility.The present invention also discloses a kind of anesthesia evaporator, comprise described temperature-sensing valve, also comprise vaporization chamber, curved tube box, live gas import, mixed gas outlet, live gas import communicates with the import of temperature-sensing valve, the outlet of temperature-sensing valve communicates with described mixed gas outlet, this anesthesia evaporator can guarantee that exporting gas concentration does not change with live gas inlet flow rate and change, and namely output gas concentration and setting value are consistent.
Description
Technical field
The present invention relates to anesthetic machine field, particularly relate to and a kind ofly there is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator.
Background technology
Vaporizer is a vitals of anesthetic machine, and it effectively can evaporate anesthetic liquid medicine, produces anesthetis boil-off gas, and mixes with live gas, accurately inputs breathing circuit for anesthesia, and then export patient end to by the concentration of anaesthetist's setting.
In practical application, live gas enters in vaporizer, and gas is divided into two-way, and a road is called carrier gas, enter anesthetis vaporization chamber, it can effectively carry out anaesthetic boil-off gas, and another road is called bypass gas, by temperature-sensing valve, then two-way gas is mixed into anesthetic gases, exports patient end to.Modern Anesthesia Apparatus vaporizer adopts special compensation arrangement, to get rid of the impact of the factors such as temperature, flow, pressure, guarantees to export constant correct anesthetic concentration; Pressure-flow offset-type vaporizer is when live gas outlet pressure or flow change, the interference of the factors such as pressure, flow, pump suction effect is slowed down by auto-compensation mechanism, keep volatility inhalation anesthetic evaporation rate constant, thus ensure that the anesthetic gases of vaporizer exports concentration stabilize.
The anesthesia gas concentration exported in order to ensure vaporizer is consistent with the concentration of setting, namely the concentration exporting anesthetic gases can not make its concentration reduce on the one hand because of the increase of fresh gas flow, the pressure oscillation caused when also can not work because of respirator on the other hand and its concentration is increased, consider based on these two aspects, prior art mainly through increasing impedance to realize on the appropriate location of two-way gas circuit.
For example, see shown in Fig. 1, live gas enters vaporizer, be divided into bypass gas and carrier gas, bypass gas flow is through temperature-sensing valve, and carrier gas flows through vaporization chamber, and last tow channel gas is mixed into anesthetic gases and exports (as shown in solid arrow in Fig. 1), bypass gas gas circuit, carrier gas gas circuit all increase impedance, when fresh gas flow increases, by the impedance that bypass gas gas circuit is arranged, the fresh gas flow flowing into temperature-sensing valve is reduced; When respirator work causes pressure oscillation, part mist is made to be back to the impedance interior (as indicated by the dashed arrow in fig. 1) of carrier gas gas circuit, the impedance variety of bypass gas gas circuit can be to form the difformity of non-linear turbulent flow, the cavity type of size, also can be is increase a vapour lock in gas circuit, vapour lock form can be the small column that axis direction opens an aperture, also can be other shape, thus reduce the sectional area of air-flow, anaesthetize gas concentration stabilize under realizing large discharge and export.
In prior art bypass gas gas circuit appropriate location on increase dissimilar impedance, there is structure relative complex, processing cost is higher and dismounting is inconvenient defect in it.
Summary of the invention
The object of the invention is to solve the problem, there is provided a kind of there is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator, it makes full use of the construction features of temperature-sensing valve in bypass gas circuit, temperature and air pressure are controlled to combine, realize the compensation of fresh gas flow, there is the advantage that structure is simple, be easy to processing, easy accessibility.
The object of the invention is to be achieved through the following technical solutions:
Have a temperature-sensing valve for flow-compensated function, comprise saddle, portable plate, it forms the air-flow gap that air feed flows through each other, and described saddle inside has gas vestibule, and described gas vestibule communicates with air-flow gap.
Preferably, described saddle front has portable plate installation type groove, and described portable plate embeds in described type groove, and the composition surface of described portable plate and saddle forms air-flow gap.
Preferably, the back side of described saddle is provided with heat-sensitive sheet, and described heat-sensitive sheet is clamped between two pads, and in the lump by the back side of screw fastening at described saddle, corresponding heat-sensitive sheet screws in adjustment screw in the front of described saddle and portable plate, and makes the ends contact heat-sensitive sheet of adjustment screw.
Preferably, described saddle one end and portable plate one end are by screw fastening, and the other end is compressed by spring leaf.
Preferably, in the outside of described spring leaf and corresponding portable plate and saddle are respectively arranged with upper padding plate and lower bolster, described lower bolster arranged outside spring bearer plate, by screw fastening between described portable plate, spring leaf, upper padding plate, between described saddle, spring leaf, lower bolster, spring bearer plate, pass through screw fastening.
A kind of anesthesia evaporator, comprise the described temperature-sensing valve with flow-compensated function, also comprise vaporization chamber, curved tube box, live gas import, mixed gas outlet, described live gas import communicates with the import of described temperature-sensing valve, the outlet of described temperature-sensing valve communicates with described mixed gas outlet, described curved tube box is connected successively with vaporization chamber, and described live gas import communicates with the import of described curved tube box, and described vaporization chamber outlet communicates with described mixed gas outlet.
Further, the inner core also comprising valve seat and connect with it, described temperature-sensing valve is installed on inner core inside, and is connected with valve seat by screw.
Further, described valve seat arranges air inlet, and described live gas import communicates with described air inlet, described air inlet is communicated with inner core, described temperature-sensing valve is installed in described inner core, and described temperature-sensing valve has air-flow gap, communicates with described temperature-sensing valve import to make described live gas import.
Further, described valve seat sets out QI KOU, and described mixed gas outlet communicates with described gas outlet, and described gas outlet exports with described temperature-sensing valve and communicates, and to export communicate to make described mixed gas outlet with described temperature-sensing valve.
Further, described gas outlet communicates with the outlet of described gas vestibule, and to export with described temperature-sensing valve to make described gas outlet and communicate, the import of described gas vestibule communicates with described air-flow gap.
Beneficial effect of the present invention is: flow through air-flow gap by forming air feed between saddle and portable plate, and when live gas import department flow increases, air-flow gap diminishes, and reduces to make the fresh gas flow of inflow temperature-sensing valve; When live gas import department flow reduces, air-flow gap increases, and to make the fresh gas flow of inflow temperature-sensing valve increase, can realize when the flowed fluctuation of live gas import department, the output of the anesthesia mist of steady concentration; Described vaporizer by arranging described temperature-sensing valve in bypass gas gas circuit, and temperature-sensing valve has flow-compensated function, can realize the output of the anesthesia mist of steady concentration.Contrast prior art, this temperature-sensing valve has the advantage that structure is simple, be easy to processing, easy accessibility, and this anesthesia evaporator can guarantee that exporting gas concentration does not change with live gas inlet flow rate and change, and namely output gas concentration and setting value are consistent.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is gas flow block diagram in anesthesia evaporator of the prior art;
Fig. 2 is gas flow block diagram in anesthesia evaporator of the present invention;
Fig. 3 is the structural representation of anesthesia evaporator of the present invention;
Fig. 4 is the back side cross-sectional schematic of Fig. 3;
Fig. 5 is the cross-sectional schematic of the temperature-sensing valve shown in Fig. 3.
In figure:
1, valve seat; 11, air inlet; 12, gas outlet;
2, inner core;
3, temperature-sensing valve; 31, saddle; 311, gas vestibule; 32, portable plate; 33, spring leaf; 34, upper padding plate; 35, lower bolster; 36, spring bearer plate; 37, heat-sensitive sheet; 38, pad;
4, screw; 5, adjustment screw.
Detailed description of the invention
As shown in Figure 5, in the present embodiment, the temperature-sensing valve with flow-compensated function of the present invention, comprise saddle 31, portable plate 32, it forms the air-flow gap that air feed flows through each other, and saddle 31 inside has gas vestibule 311, and gas vestibule 311 communicates with air-flow gap.
Have portable plate 32 installation type groove in the front of saddle 31, portable plate 32 embeds in described type groove, and portable plate 32 forms air-flow gap with the composition surface of saddle 31.
Saddle 31 is fastening by screw 4 with portable plate 32 one end, the other end is compressed by spring leaf 33, in the outside of spring leaf 33 and corresponding portable plate 32 and saddle 31 are respectively arranged with upper padding plate 34 and lower bolster 35, lower bolster 35 arranged outside spring bearer plate 36, fastening by screw 4 between portable plate 32, spring leaf 33, upper padding plate 34, fastening by screw 4 between saddle 31, spring leaf 33, lower bolster 35, spring bearer plate 36.
The back side of saddle 31 is provided with heat-sensitive sheet 37, heat-sensitive sheet 37 is clamped between two pads 38, and the back side of saddle 31 is fastened in the lump by screw 4, corresponding heat-sensitive sheet 37 screws in adjustment screw 5 in the front of saddle 31 and portable plate 32, and makes the ends contact heat-sensitive sheet 37 of adjustment screw 5.
As shown in Figure 2, in the present embodiment, anesthesia evaporator of the present invention, comprise the described temperature-sensing valve with flow-compensated function, also comprise vaporization chamber, curved tube box, live gas import, mixed gas outlet, described live gas import communicates with the import of described temperature-sensing valve, the outlet of described temperature-sensing valve communicates with described mixed gas outlet, described curved tube box is connected successively with vaporization chamber, and described live gas import communicates with the import of described curved tube box, described vaporization chamber outlet communicates with described mixed gas outlet.
Live gas enters vaporizer from live gas import, is divided into two-way, and a road exports after temperature-sensing valve adjust flux; Another road enters after vaporization chamber through curved tube box and exports anesthetic gases, and Yu Shang mono-tunnel mixed gases is also exported by mixed gas outlet.
As shown in figs. 34, in the present embodiment, anesthesia evaporator of the present invention also comprises valve seat 1, valve seat 1 is connected with inner core 2, and sealing ring is set in junction, temperature-sensing valve 3 is installed in inner core 2 inside, and temperature-sensing valve 3 is fastened on the side of valve seat 1 by screw 4, valve seat 1 has air inlet 11, gas outlet 12.
Live gas import communicates with air inlet 11, and air inlet 11 is communicated with inner core 2, and temperature-sensing valve 3 is arranged in inner core 2, and temperature-sensing valve 3 has the air-flow gap that air feed flows through, and communicates with temperature-sensing valve 3 import to make live gas import.
Mixed gas outlet communicates with gas outlet 12, and gas outlet 12 communicates with the outlet of gas vestibule 311, and to export with temperature-sensing valve 3 to make mixed gas outlet and communicate, the import of gas vestibule 311 communicates with air-flow gap.
Screw 4 can be interior hexagonal cylindrical screw, cross recessed countersunk head sscrew or other securing members.
The installation process of described anesthesia evaporator: 1) upper padding plate 34, spring leaf 33, portable plate 32 two cross recessed countersunk head sscrews are integrally connected;
2) be then placed in the front type groove of saddle in the lump, one end is fastening with two hexagon socket cap head screws, and spring leaf 33, lower bolster 35, spring bearer plate 36 are fixed on valve seat 1 by the other end two Cross Recess Head Screws;
3) then heat-sensitive sheet 37 is clipped between two pads 38, and is fixed on valve seat 1 by two Cross Recess Head Screws in the lump;
4) be screwed into adjustment screw 5 at the top of portable plate, and make the end of adjustment screw 5 just contact heat-sensitive sheet 37;
5) more whole temperature-sensing valve is screwed on valve seat 1 by two hexagon socket cap head screws.
The operation principle of described anesthesia evaporator: live gas enters valve seat 1 by live gas import, inner core 2 is flow to again by valve seat 1, entered the gas vestibule 311 of saddle 31 inside again by the air-flow gap formed between the saddle 31 of temperature-sensing valve 3 and portable plate 32, mix with anesthetic gases after the outlet of gas vestibule 311 exports; When fresh gas flow increases, the gas pressure flowed in inner core 2 increases, the pressure now acted on outside saddle 31 and portable plate 32 also increases, under the ordering about of outside pressure, the portable plate 32 be fixed on spring leaf 33 is partial to saddle 31, and the gap between saddle 31 and portable plate 32 is diminished, thus the gas flow in inflow gas vestibule 311 is reduced, gas after Drazin inverse flow, thus achieve when large discharge, the output of the mist of steady concentration; When fresh gas flow reduces, the bypass gas gas pressure flowed in inner core 2 reduces, the pressure now acted on outside saddle 31 and portable plate 32 also reduces, portable plate 32 departs from saddle 31 under the elastic force effect of spring leaf 33, air-flow gap between saddle 31 and portable plate 32 is become greatly, thus the gas flow in inflow gas vestibule 311 is increased, the gas after Drazin inverse flow, thus achieve when low discharge, the output of the mist of steady concentration.
Claims (9)
1. have a temperature-sensing valve for flow-compensated function, it is characterized in that: comprise saddle, portable plate, it forms the air-flow gap that air feed flows through each other, and described saddle inside has gas vestibule, and described gas vestibule communicates with air-flow gap;
Described saddle front has portable plate installation type groove, and described portable plate embeds in described type groove, and the composition surface of described portable plate and saddle forms air-flow gap.
2. the temperature-sensing valve with flow-compensated function according to claim 1, it is characterized in that: the back side of described saddle is provided with heat-sensitive sheet, described heat-sensitive sheet is clamped between two pads, and in the lump by the back side of screw fastening at described saddle, corresponding heat-sensitive sheet screws in adjustment screw in the front of described saddle and portable plate, and makes the ends contact heat-sensitive sheet of adjustment screw.
3. the temperature-sensing valve with flow-compensated function according to claim 1, is characterized in that: described saddle one end and portable plate one end are by screw fastening, and the other end of described saddle and the other end of portable plate are compressed by spring leaf.
4. the temperature-sensing valve with flow-compensated function according to claim 3, it is characterized in that: in the outside of described spring leaf and corresponding portable plate and saddle are respectively arranged with upper padding plate and lower bolster, described lower bolster arranged outside spring bearer plate, by screw fastening between described portable plate, spring leaf, upper padding plate, between described saddle, spring leaf, lower bolster, spring bearer plate, pass through screw fastening.
5. one kind comprises the anesthesia evaporator with the temperature-sensing valve of flow-compensated function according to claim 1, it is characterized in that: also comprise vaporization chamber, curved tube box, live gas import, mixed gas outlet, described live gas import communicates with the import of described temperature-sensing valve, the outlet of described temperature-sensing valve communicates with described mixed gas outlet, described curved tube box is connected successively with vaporization chamber, and described live gas import communicates with the import of described curved tube box, described vaporization chamber outlet communicates with described mixed gas outlet.
6. anesthesia evaporator according to claim 5, is characterized in that: the inner core also comprising valve seat and connect with it, described temperature-sensing valve is installed on inner core inside, and is connected with valve seat by screw.
7. anesthesia evaporator according to claim 6, it is characterized in that: described valve seat arranges air inlet, described live gas import communicates with described air inlet, described air inlet is communicated with inner core, described temperature-sensing valve is installed in described inner core, and described temperature-sensing valve has air-flow gap, communicate with described temperature-sensing valve import to make described live gas import.
8. anesthesia evaporator according to claim 6, it is characterized in that: described valve seat sets out QI KOU, described mixed gas outlet communicates with described gas outlet, and described gas outlet exports with described temperature-sensing valve and communicates, and to export communicate to make described mixed gas outlet with described temperature-sensing valve.
9. anesthesia evaporator according to claim 8, is characterized in that: described gas outlet communicates with the outlet of described gas vestibule, and to export with described temperature-sensing valve to make described gas outlet and communicate, the import of described gas vestibule communicates with described air-flow gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456169.4A CN103182132B (en) | 2011-12-30 | 2011-12-30 | There is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110456169.4A CN103182132B (en) | 2011-12-30 | 2011-12-30 | There is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator |
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| Publication Number | Publication Date |
|---|---|
| CN103182132A CN103182132A (en) | 2013-07-03 |
| CN103182132B true CN103182132B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110456169.4A Active CN103182132B (en) | 2011-12-30 | 2011-12-30 | There is the temperature-sensing valve of flow-compensated function and comprise its anesthesia evaporator |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837448A (en) * | 2016-09-21 | 2018-03-27 | 北京毅安峰技术有限公司 | Anesthesia evaporator temperature control valve |
| CN114144219B (en) * | 2019-10-09 | 2024-01-02 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine and method for controlling anesthesia evaporator |
| CN111840881B (en) * | 2020-09-03 | 2022-01-25 | 威特龙消防安全集团股份公司 | Preparation method of gel fire extinguishing agent |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339828A1 (en) * | 1988-04-27 | 1989-11-02 | The BOC Group plc | Anaesthetic vaporisors |
| US5168866A (en) * | 1990-01-03 | 1992-12-08 | The Boc Group Plc | Vaporizers usable with anesthetics having a boiling point near the ambient temperature |
| CN101780302A (en) * | 2009-01-16 | 2010-07-21 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthetic vaporizer and temperature compensation unit |
| CN201840751U (en) * | 2010-09-26 | 2011-05-25 | 深圳市百格医疗技术有限公司 | Pressure compensating device of anesthetic evaporator |
| CN102266634A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Flow regulating valve and anesthesia machine comprising same |
-
2011
- 2011-12-30 CN CN201110456169.4A patent/CN103182132B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339828A1 (en) * | 1988-04-27 | 1989-11-02 | The BOC Group plc | Anaesthetic vaporisors |
| US5168866A (en) * | 1990-01-03 | 1992-12-08 | The Boc Group Plc | Vaporizers usable with anesthetics having a boiling point near the ambient temperature |
| CN101780302A (en) * | 2009-01-16 | 2010-07-21 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthetic vaporizer and temperature compensation unit |
| CN201840751U (en) * | 2010-09-26 | 2011-05-25 | 深圳市百格医疗技术有限公司 | Pressure compensating device of anesthetic evaporator |
| CN102266634A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Flow regulating valve and anesthesia machine comprising same |
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| CN103182132A (en) | 2013-07-03 |
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