CN202909243U - Anesthesia respirator gas circuit with pressure control function - Google Patents
Anesthesia respirator gas circuit with pressure control function Download PDFInfo
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- CN202909243U CN202909243U CN 201220603573 CN201220603573U CN202909243U CN 202909243 U CN202909243 U CN 202909243U CN 201220603573 CN201220603573 CN 201220603573 CN 201220603573 U CN201220603573 U CN 201220603573U CN 202909243 U CN202909243 U CN 202909243U
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Abstract
An anesthesia respirator gas circuit with a pressure control function comprises a driving air inlet, a fresh air inlet, an inspiration port, an inspiration one-way valve, an expiration port, an expiration one-way valve, an absorption tank and an accommodating cavity. A winding air pipeline is arranged inside the accommodating cavity. The driving air inlet is connected with one end of the winding air pipeline of the accommodating cavity. An air outlet end of the expiration one-way valve is connected with the other end of the winding air pipeline of the accommodating cavity. An air inlet end of the expiration one-way valve is connected with the expiration port. A branch pipeline is arranged in the middle of the winding air pipeline of the accommodating cavity and is connected with an air inlet end of the absorption tank. An air outlet end of the absorption tank and the fresh air inlet are connected with an air inlet end of the inspiration one-way valve. An air outlet end of the inspiration one-way valve is connected with the inspiration port.
Description
Technical field
This utility model relates to a kind of anesthesia respirator, relates in particular to the gas circuit structure of anesthesia respirator, belongs to armarium manufacturing technology field.
Background technology
In anesthesia respiratory system, because patient's Exhaled gasesS carries remaining anesthetic gases, need to filter the patient end Exhaled gasesS, absorb filtering carbon dioxide wherein, then repeat to suck for patient.Generally adopt the control system with bellows device to realize, as shown in Figure 1.During patient inhales, the leather bag 1 of bellows is after the quick oxygen supply of anesthetic machine is full of, order about anesthetic gases by driving gas entrance 2 and flow to breather cheek valve 4 through tourie 3, live gas also flows to breather cheek valve 4 through live gas entrance 5 simultaneously, and enters patient pulmonary through air entry 6.Gas is behind patient body's internal recycle, patient begins to exhale, this moment, the anesthetic machine driving gas stopped air feed, the systolic pressure of patient pulmonary is so that the gas of having crossed at patient body's internal recycle flows to expiratory one-way valve 8 through exhalation vents 7, and open expiratory one-way valve 8 and flow to tourie 3 and driving gas entrance 2, anesthetic machine driving gas this moment air feed again, because expiratory one-way valve only allows gas unidirectional to flow, so driving gas compressing breath flows to the entrance of tourie 3 and enters tourie 3, after the filtration of breath through tourie 3 interior sodica calx, filtering carbon dioxide wherein enters patient inhales mouth 6 again.This moment, a breath cycle was finished.In above-mentioned gas circuit structure, because the driving gas outlet that the interior breath of lung flows to bellows can form certain pressure, for different patients, it is different that bellows are subject to intrapulmonic pressure power, and pressure changes with the Patients with Lung internal pressure, so that bellows urceolus institute indexing can't the normal reaction lung in the gas supply situation, particularly when being applied to neonatal patient, its impact is very large, and because the overflow valve 9 in the bellows exists a small malleation or small negative pressure, this pressure seriously influences neonatal ventilation, can cause the problem of the excessive or hypoventilation of neonate ventilation.Simultaneously, because the pliability of the inner leather bag of bellows is difficult to control, cause in the pressure control procedure, can not well reaching pressure platform, be easy to occur because the leather bag Flexible change causes pressure platform too high, be difficult to reach the setting pressure requirement.
The utility model content
The purpose of this utility model is to provide a kind of gas circuit structure of anesthesia respirator, can overcome the defects of existing anesthesia respiratory system, can guarantee the anesthetic gases pressure in the input patient body, the safety requirements that reaches setting of gas gross.
The technical solution of the utility model is as follows:
A kind of anesthesia respirator gas circuit with pressure control function, comprise driving gas entrance, live gas entrance, air entry, breather cheek valve, exhalation vents, expiratory one-way valve, tourie in the described gas circuit, it is characterized in that: also comprise a cavity volume in the described gas circuit, described cavity volume inside is provided with tortuous gas piping, described driving gas entrance connects an end of the tortuous gas piping of cavity volume, the gas outlet end of described expiratory one-way valve connects the other end of the tortuous gas piping of cavity volume, the air inlet end of described expiratory one-way valve connects described exhalation vents; The middle part of the tortuous gas piping of described cavity volume, be provided with the air inlet end that a branch line connects described tourie, the gas outlet end of described tourie, and described live gas entrance, the air inlet end that connects described breather cheek valve, the gas outlet end of described breather cheek valve connects described air entry.
This utility model is applied to anesthetic gases and live gas to be sent into patient pulmonary accurately in the guiding of clinical anesthesia initial stage and the surgery anesthesia.This utility model is in whole breath cycle process, not only can allow breath to repeat to suck and guarantee the unipolarity of airflow direction, there is the live gas compensation to make the anaesthetic relative concentration of suction more stable during making ventilation always, and owing between driving gas entrance and expiratory one-way valve, being provided with cavity volume, the space of cavity volume is enough large, and air flue is even, resistance is very little right, the pressure of breath and driving gas plays cushioning effect, guarantee the anesthetic gases pressure in the input patient body, the safety of gas gross, simultaneously can make the patient end Exhaled gasesS when not leaking, again drive with regard to driven gas and to enter tourie, thereby realize repeating to suck.
Description of drawings
Fig. 1 is the principle schematic of existing anesthesia respiratory system
Fig. 2 is anesthesia respiratory system principle schematic of the present utility model
Fig. 3 is gas circuit structure schematic diagram of the present utility model
The specific embodiment
Anesthesia respiratory system principle of the present utility model as shown in Figure 2, except comprising leather bag same as the prior art 1, driving gas entrance 2, live gas entrance 5, breather cheek valve 4, air entry 6, expiratory one-way valve 8, exhalation vents 7, tourie 3, also comprise a cavity volume 10.Described leather bag 1 connects an end of described cavity volume 10 by gas circuit through driving gas entrance 2, the other end of described cavity volume 10 connects the gas outlet end of described expiratory one-way valve 8 by gas circuit, and the air inlet end of described expiratory one-way valve 8 connects described exhalation vents 7; Gas circuit between described cavity volume 10 and the expiratory one-way valve 8 connects again the air inlet of described tourie 3, and the gas outlet of described tourie 3, and live gas entrance 5 connect described air entry 6 by gas circuit through described breather cheek valve 4.In addition, in the anesthesia respiratory system, also be provided with APL equilibrated valve 11 same as the prior art, flow measurement device 12, PEEP valve 13, oxygen sensor 14 etc.
Fig. 3 is gas circuit structure schematic diagram of the present utility model, display driver gas access 2, live gas entrance 5, breather cheek valve 4, air entry 6, expiratory one-way valve 8, exhalation vents 7, cavity volume 10, and the arrow among the figure shows gas flow.Described cavity volume 10 inside are provided with tortuous gas circuit, and this complications gas circuit one end connects driving gas entrance 2, and the other end connects expiratory one-way valve 8; The middle part of described tortuous gas circuit is provided with a branch air path 101 and connects tourie.
Work process of the present utility model is as follows: during patient inhales, the live gas that is entered by the live gas entrance enters patient pulmonary through breather cheek valve; Then patient exhales, the gas process pipeline flow-direction expiratory one-way valve of having crossed at patient body's internal recycle, and open expiratory one-way valve and enter cavity volume, cavity volume inside is provided with tortuous gas circuit, the space is enough large, hold breath fully, at this moment, exhale and finish, expiratory one-way valve is closed, the leather bag compression, driving gas is started working, and enters cavity volume by the driving gas entrance, orders about the breath reverse flow that enters cavity volume, because expiratory one-way valve is closed, gas in the cavity volume can only enter tourie, and the carbon dioxide in tourie in the gas is absorbed, and remaining gas flows out tourie by the tourie outlet under the pressure of driving gas, together enter patient pulmonary through breather cheek valve with live gas, finish a circulation.Because the effect of cavity volume can make the patient end Exhaled gasesS when not leaking, again drive with regard to driven gas and enter tourie in the said process, thereby realize repeating to suck.And the space of cavity volume is enough large, and air flue is even, resistance is very little right, and the pressure of breath and driving gas plays cushioning effect, guarantees the anesthetic gases pressure in the input patient body, the safety of gas gross.
Claims (1)
1. anesthesia respirator gas circuit with pressure control function, comprise driving gas entrance, live gas entrance, air entry, breather cheek valve, exhalation vents, expiratory one-way valve, tourie in the described gas circuit, it is characterized in that: also comprise a cavity volume in the described gas circuit, described cavity volume inside is provided with tortuous gas piping, described driving gas entrance connects an end of the tortuous gas piping of cavity volume, the gas outlet end of described expiratory one-way valve connects the other end of the tortuous gas piping of cavity volume, the air inlet end of described expiratory one-way valve connects described exhalation vents; The middle part of the tortuous gas piping of described cavity volume, be provided with the air inlet end that a branch line connects described tourie, the gas outlet end of described tourie, and described live gas entrance, the air inlet end that connects described breather cheek valve, the gas outlet end of described breather cheek valve connects described air entry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603573 CN202909243U (en) | 2012-11-12 | 2012-11-12 | Anesthesia respirator gas circuit with pressure control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603573 CN202909243U (en) | 2012-11-12 | 2012-11-12 | Anesthesia respirator gas circuit with pressure control function |
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| Publication Number | Publication Date |
|---|---|
| CN202909243U true CN202909243U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603573 Ceased CN202909243U (en) | 2012-11-12 | 2012-11-12 | Anesthesia respirator gas circuit with pressure control function |
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| Country | Link |
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| CN (1) | CN202909243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020087397A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia respiration device and method |
-
2012
- 2012-11-12 CN CN 201220603573 patent/CN202909243U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020087397A1 (en) * | 2018-10-31 | 2020-05-07 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia respiration device and method |
| CN112969487A (en) * | 2018-10-31 | 2021-06-15 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia breathing device and method |
| CN112969487B (en) * | 2018-10-31 | 2024-04-26 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia breathing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20161201 Decision number of declaring invalidation: 30653 Granted publication date: 20130501 |