CN217286787U

CN217286787U - Multipurpose anesthesia machine

Info

Publication number: CN217286787U
Application number: CN202122895465.6U
Authority: CN
Inventors: 郭大为; 马长龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-08-26
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a multipurpose anesthesia machine, which comprises an inspiration gas circuit, an oxygen gas circuit and an expiration gas circuit; the air suction circuit comprises an air suction pipeline, and the air suction pipeline is provided with a first pressure reducing valve, a fresh gas adjusting module, an anesthetic gas module and a first one-way valve; the oxygen gas circuit comprises an oxygen pipeline, and the oxygen pipeline is provided with a second pressure reducing valve and a flow control module; the expiration gas circuit comprises an expiration pipeline provided with a second one-way valve; the expiration pipeline is connected with the inspiration pipeline through an absorption pipeline; a carbon dioxide absorption container and a switching valve are arranged on the absorption pipeline; the expiration gas circuit also comprises an exhaust pipeline provided with an expiration control module; the multipurpose anesthesia machine can realize a closed gas circuit state and an open gas circuit state, does not need to additionally arrange a breathing machine, saves the space of an operating room, saves the operation cost and lightens the burden of a patient.

Description

Multipurpose anesthesia machine

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a multipurpose anesthesia machine.

Background

General anesthesia refers to a process in which an anesthetic is introduced into the body by inhalation, intravenous, intramuscular injection, or rectal infusion, so that the central nervous system is inhibited, and the patient's consciousness is lost without pain feeling around the body. Inhalation anesthesia and intravenous anesthesia are currently the most commonly used.

Inhalation anesthesia refers to a general anesthesia method in which a volatile anesthetic or anesthetic gas is absorbed into blood from an anesthesia machine through a respiratory system to inhibit the central nervous system.

Total intravenous anesthesia (TIVA), a general anesthesia method compared to inhalation anesthesia. Refers to an anesthesia method in which all narcotics (including sedative hypnotics, narcotic analgesics, and muscle relaxants) are administered intravenously.

At present, the clinical practice usually considers the patient's condition, economic condition, operation method, and operating room condition, and then selects the appropriate anesthesia method.

When using total intravenous anesthesia, the patient loses spontaneous breathing ability and needs assisted ventilation by a ventilator. The current practice is to separately configure a breathing machine in an operating room to be used in cooperation with the manual ventilation function of an anesthesia machine, or to directly use the anesthesia machine for ventilation.

At present, the following defects exist in the operation of the full vein anesthesia: the whole vein anesthesia does not need repeated inhalation of the gas exhaled by the patient due to the participation of the anesthetic gas, so that a carbon dioxide adsorbent (soda lime) is not needed, and at present, a closed repeated inhalation loop is still needed, the carbon dioxide adsorbent is also used, the carbon dioxide adsorbent is expensive, and the continuous maintenance of the closed loop is very wasteful. And is also less safe for the patient than an open circuit.

Meanwhile, the breathing machine is directly used for ventilation, an anaesthetist needs to use the anaesthesia machine to conduct manual ventilation firstly, then the anaesthesia doctor is switched to the breathing machine to conduct machine-controlled ventilation, ventilation equipment is replaced under the condition that a patient is anaesthetized, and the safety risk of the patient is increased.

If the breathing machine is directly used for ventilation, one more breathing machine needs to be configured in the operating room, so that the cost of the hospital is increased.

If the ventilator is used directly for ventilation, equipment maintenance personnel and anesthetists in an anesthesia department are required to add professional knowledge to the ventilator, and the requirement for professional skills of the equipment maintenance personnel and the anesthetist is increased.

If the breathing machine is directly used for ventilation, one breathing machine is added, and the space of an operating room is occupied.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a multipurpose anesthesia machine.

The utility model provides a technical scheme that its technical problem adopted is: a multipurpose anesthesia machine is constructed, which comprises an inspiration gas circuit, an oxygen gas circuit and an expiration gas circuit;

the inhalation gas circuit comprises an inhalation pipeline, wherein the first end of the inhalation pipeline is used for being connected with an air source, the second end of the inhalation pipeline is used for being connected with a patient, and a first pressure reducing valve, a fresh gas regulating module, an anesthetic gas module and a first one-way valve are sequentially arranged on the inhalation pipeline from the first end to the second end of the inhalation pipeline;

the oxygen gas path comprises an oxygen pipeline, the first end of the oxygen pipeline is used for being connected with an oxygen gas source, the second end of the oxygen pipeline is connected with an air box device, and a second pressure reducing valve and a flow control module are sequentially arranged on the oxygen pipeline from the first end to the second end of the oxygen pipeline;

the section of the oxygen pipeline between the second pressure reducing valve and the flow control module is connected with the fresh gas regulating module through a connecting pipe;

the expiration gas circuit comprises an expiration pipeline with a first end connected with the bellows device and a second end used for connecting a patient, and the expiration pipeline is provided with a second one-way valve;

the section of the expiration pipeline between the bellows device and the second one-way valve is connected with the section of the inspiration pipeline between the anesthetic gas module and the first one-way valve through an absorption pipeline;

a carbon dioxide absorption container is arranged on the absorption pipeline, and a switching valve is arranged at the joint of the absorption pipeline and the expiration pipeline;

the expiration gas circuit still include with the exhaust duct that bellows device is connected, be equipped with expiration control module on the exhaust duct.

Preferably, the bellows device comprises a bellows cover and a folding bag detachably mounted in the bellows cover, and a driving space is formed between the outer periphery of the folding bag and the inner periphery of the bellows cover;

the second end of the oxygen pipeline is connected with the driving space, the expiration pipeline is connected with the folding bag, and the first end of the exhaust pipeline is connected with the driving space;

the multipurpose anesthesia machine comprises a closed gas circuit state and an open gas circuit state; when the closed gas circuit state is realized, the absorption pipeline is communicated with the expiration pipeline, and driving gas is formed in the oxygen pipeline to press the folding bag so as to drive the expired waste gas of the patient to enter the carbon dioxide absorption container;

when open gas circuit state, folding bag is torn open, exhale the pipeline with exhaust duct intercommunication, patient's exhale waste gas warp exhale the pipeline, bellows cover and exhaust duct discharges.

Preferably, the anesthetic gas module comprises a gas pipe arranged on the air suction pipeline and a control valve respectively connected with the gas pipe and the anesthetic gas source.

Preferably, the switching valve is a three-way valve.

Preferably, the device further comprises a controller connected with the three-way valve.

Preferably, the multipurpose anesthesia machine further comprises a tee joint, wherein the tee joint comprises a first interface, a second interface and a third interface;

the first interface is connected with the second end of the inspiration pipeline, the second interface is connected with the second end of the oxygen pipeline, and the third interface is connected to the patient.

Implement the utility model discloses following beneficial effect has: the multipurpose anesthesia machine can realize a closed gas circuit state and an open gas circuit state without increasing redundant cost. The carbon dioxide adsorbent such as soda lime in the anesthesia machine can not be consumed in the ventilation process, so that the operation cost and the burden of a patient are saved. In the ventilation process, high-pressure oxygen is not discharged, so that the operation cost and the burden of a patient are reduced. The function of the breathing machine is integrated on the anesthesia machine, so that the space of an operating room is saved.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic structural view of the multi-purpose anesthesia machine of the present invention;

FIG. 2 is a schematic structural view of the closed gas circuit state of the multipurpose anesthesia machine of the present invention;

fig. 3 is a schematic structural view of the open gas circuit state of the multipurpose anesthesia machine of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, a multipurpose anesthesia machine of the present invention includes an inhalation gas path 1, an oxygen gas path 2, and an exhalation gas path 3.

The inspiration air circuit 1 comprises an inspiration pipeline 11, wherein the first end of the inspiration pipeline is used for being connected with an air source, the second end of the inspiration pipeline is used for being connected with a patient, and a first pressure reducing valve 12, a fresh air adjusting module 13, an anesthetic gas module 14 and a first one-way valve 15 are sequentially arranged on the inspiration pipeline 11 from the first end to the second end of the inspiration pipeline.

The oxygen gas circuit 2 comprises an oxygen pipeline 21, wherein the first end of the oxygen pipeline is used for being connected with an oxygen gas source, the second end of the oxygen pipeline is connected with an air box device 24, and a second reducing valve 22 and a flow control module 23 are sequentially arranged on the oxygen pipeline 21 from the first end to the second end of the oxygen pipeline.

The section of the oxygen pipeline 21 between the second pressure reducing valve 22 and the flow control module 23 is connected to the fresh gas regulating module 13 through a connecting pipe 16, or an interface of the second pressure reducing valve 22 is connected to an interface of the oxygen concentration regulating module 13 through the connecting pipe 16.

The expiration air circuit 3 comprises an expiration pipeline 31 with a first end connected with the bellows device 24 and a second end used for connecting a patient, and the expiration pipeline 31 is provided with a second one-way valve 32 so as to prevent the exhaust gas exhaled by the patient from flowing back to the patient.

The section of the expiration pipeline 31 between the bellows device 24 and the second one-way valve 32 and the section of the inspiration pipeline 11 between the anesthetic gas module 14 and the first one-way valve 15 are connected through an absorption pipeline 33, a carbon dioxide absorption container 34 is arranged on the absorption pipeline 33, and a switching valve 35 is arranged at the connection position of the absorption pipeline 33 and the expiration pipeline 31. In this embodiment, the carbon dioxide absorption container 34 may include a hollow container, and the carbon dioxide adsorbent may or may not be disposed in the hollow container, and the carbon dioxide adsorbent may be soda lime. In some embodiments, a filter screen or the like may be provided in the container, and it will be understood that the carbon dioxide absorption container 34 absorbs carbon dioxide in the waste respiratory gas from the patient, and the treated gas can be supplied to the patient again through the anesthetic tube 11.

The expiratory air circuit 3 further comprises an exhaust pipeline 36 connected with the bellows device 24, an expiratory control module 37 is arranged on the exhaust pipeline 36, the expiratory control module 37 may be a breathing valve capable of controlling positive end expiratory pressure, and the breathing valve may be electrically controlled or pneumatically controlled.

In this embodiment, the bellows device 24 includes a bellows cover 241 and a folding bag 242 detachably mounted in the bellows cover 241, a driving space a is formed between an outer periphery of the folding bag 242 and an inner periphery of the bellows cover 241, the second end of the oxygen pipe 21 is connected to the driving space a, the exhalation pipe 31 is connected to the folding bag 242, and the first end of the exhaust pipe 36 is connected to the driving space a.

Wherein, the multipurpose anesthesia machine comprises a closed gas circuit state and an open gas circuit state. In the closed airway state, as shown in fig. 2, the absorption tube 33 is in communication with the exhalation tube 31, and the driving gas formed in the oxygen tube 21 presses against the folding bag 242 to drive the patient's exhaled waste gas into the carbon dioxide absorption container 34.

As shown in fig. 3, in the open airway state, the folding bag 242 is removed, the exhalation tube 31 communicates with the exhaust tube 36, and the patient exhales through the exhalation tube 31, the bellows cover 241, and the exhaust tube 36. Meanwhile, oxygen enters the inhalation duct 11 through the second pressure reducing valve 22, the flow control module 23, the bellows cover 241 and the carbon dioxide absorption container 34 (at this time, no carbon dioxide adsorbent is provided in the carbon dioxide absorption container 34, and the absorption duct 33 serves as a driving passage at this time) to drive the oxygen-mixed gas to enter the patient.

In this embodiment, the anesthetic gas module 14 may include a gas pipe 141 disposed on the inhalation tube 11, and a control valve 142 respectively connected to the gas pipe 141 and the anesthetic gas source 143, where the control valve 142 may control the anesthetic gas in the anesthetic gas source 143 to be connected to the gas pipe 141, or may control the anesthetic gas in the anesthetic gas source 143 not to be connected to the gas pipe 141.

In this embodiment, the switching valve 35 may be a three-way valve, and further, the multipurpose anesthesia machine further includes a controller connected to the three-way valve to control the three-way valve. Of course, the type of the switching valve 35 can be selected and set according to actual requirements, and is not limited in particular here. Of course, a valve switching device may be provided, and is not limited herein.

In this embodiment, the multi-purpose anesthesia machine further comprises a three-way joint 4, wherein the three-way joint 4 comprises a first interface 41, a second interface 42 and a third interface 43, wherein the first interface 41 is connected to the second end of the inhalation tube 11, the second interface 42 is connected to the second end of the oxygen tube 21, and the third interface 43 is connected to the patient.

The utility model discloses a multipurpose anesthesia machine can realize closed gas circuit state and open gas circuit state, does not have unnecessary cost-push. The carbon dioxide adsorbent such as soda lime in the anesthesia machine can not be consumed in the ventilation process, so that the operation cost and the burden of a patient are saved. In the process of ventilation, high-pressure oxygen is not discharged, so that the operation cost and the burden of a patient are reduced. The function of the breathing machine is integrated on the anesthesia machine, so that the space of an operating room is saved.

It should be understood that the above examples only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A multipurpose anesthesia machine is characterized by comprising an inspiration gas circuit (1), an oxygen gas circuit (2) and an expiration gas circuit (3);

the inspiration air circuit (1) comprises an inspiration pipeline (11) with a first end used for being connected with an air source and a second end used for being connected with a patient, and the inspiration pipeline (11) is sequentially provided with a first pressure reducing valve (12), a fresh air adjusting module (13), an anesthetic gas module (14) and a first one-way valve (15) from the first end to the second end;

the oxygen gas circuit (2) comprises an oxygen pipeline (21) with a first end connected with an oxygen gas source and a second end connected with an air box device (24), and the oxygen pipeline (21) is sequentially provided with a second reducing valve (22) and a flow control module (23) from the first end to the second end;

the section of the oxygen pipeline (21) between the second pressure reducing valve (22) and the flow control module (23) is connected with the fresh gas regulating module (13) through a connecting pipe (16);

the expiration air circuit (3) comprises an expiration pipeline (31) with a first end connected with the air box device (24) and a second end used for connecting a patient, and the expiration pipeline (31) is provided with a second one-way valve (32);

the section of the expiration pipeline (31) positioned between the bellows device (24) and the second one-way valve (32) and the section of the inspiration pipeline (11) positioned between the anesthetic gas module (14) and the first one-way valve (15) are connected through an absorption pipeline (33);

a carbon dioxide absorption container (34) is arranged on the absorption pipeline (33), and a switching valve (35) is arranged at the connection part of the absorption pipeline (33) and the expiration pipeline (31);

the expiration gas circuit (3) further comprises an exhaust pipeline (36) connected with the bellows device (24), and an expiration control module (37) is arranged on the exhaust pipeline (36).

2. The multipurpose anesthesia machine of claim 1, wherein the bellows device (24) comprises a bellows cover (241) and a folding bag (242) detachably mounted in the bellows cover (241), the folding bag (242) forming a driving space (a) between an outer circumference thereof and an inner circumference thereof (241);

the second end of the oxygen pipeline (21) is connected with the driving space (A), the expiration pipeline (31) is connected with the folding bag (242), and the first end of the exhaust pipeline (36) is connected with the driving space (A);

the multipurpose anesthesia machine comprises a closed gas circuit state and an open gas circuit state; in the closed gas circuit state, the absorption pipeline (33) is communicated with the expiration pipeline (31), and driving gas is formed in the oxygen pipeline (21) to press the folding bag (242) so as to drive the expired waste gas of the patient to enter the carbon dioxide absorption container (34);

when the air passage is in the open type state, the folding bag (242) is detached, the expiration pipeline (31) is communicated with the exhaust pipeline (36), and the exhaust gas exhaled by the patient is exhausted through the expiration pipeline (31), the air box cover (241) and the exhaust pipeline (36).

3. The multipurpose anesthesia machine of any of claims 1 or 2, wherein the anesthesia gas module (14) comprises a gas delivery tube (141) disposed on the inhalation tube (11), and a control valve (142) connected to the gas delivery tube (141) and the anesthesia gas source (143), respectively.

4. The multipurpose anesthesia machine of claim 3, wherein the switching valve (35) is a three-way valve.

5. The multipurpose anesthesia machine of claim 4, further comprising a controller connected to the three-way valve.

6. The multipurpose anesthesia machine of claim 1, further comprising a tee fitting (4), said tee fitting (4) comprising a first port (41), a second port (42) and a third port (43);

the first interface (41) is connected with the second end of the inhalation pipeline (11), the second interface (42) is connected with the second end of the oxygen pipeline (21), and the third interface (43) is connected with the patient.