WO2016086350A1

WO2016086350A1 - Anaesthetic respiratory device having integrated disinfection function

Info

Publication number: WO2016086350A1
Application number: PCT/CN2014/092773
Authority: WO
Inventors: 蔡琨; 陈培涛; 罗才瑾
Original assignee: 深圳迈瑞生物医疗电子股份有限公司
Priority date: 2014-12-02
Filing date: 2014-12-02
Publication date: 2016-06-09
Also published as: CN105492059A; CN105492059B

Abstract

An anaesthetiser (100) having an integrated disinfection function, comprising an exhalation apparatus (10), an inhalation apparatus (20), a drive apparatus (40) connected to the exhalation apparatus (10) and the inhalation apparatus (20), and a disinfecting and sterilising apparatus (60) used for producing a disinfecting and sterilising substance and/or a disinfecting and sterilising wave. The exhalation apparatus (10) and the inhalation apparatus (20) respectively form with the drive apparatus (40) an interconnected exhalation channel and inhalation channel. The disinfecting and sterilising apparatus (60) is arranged in the exhalation and/or inhalation channel and forms with the exhalation and/or inhalation channel an air flow loop. The disinfecting and sterilising apparatus (60) is integrated into the anaesthetiser (100), and the sterilising substance and/or disinfecting and sterilising wave flows in the respiratory loop or uses the gas circulation of the device itself, such that each place in the loop is automatically disinfected without the need to disassemble the loop.

Description

Anesthetic breathing apparatus with integrated disinfection function

[Technical Field]

The present invention relates to a medical device, and more particularly to an anesthetic breathing apparatus integrated with a disinfecting function.

【Background technique】

Anesthesia breathing equipment can be discarded after being used once, except for the external piping. The internal breathing circuit of the machine itself is usually used repeatedly. The anesthetic breathing equipment that is used repeatedly without internal disinfection is likely to cause microbial contamination. The most common infections caused by anesthesia breathing equipment are respiratory bacterial infections, especially those caused by Mycobacterium tuberculosis and atypical mycobacteria. Recently, HBV (hepadnavividae, hepatitis B virus) and HCV (hepatitis) have also been found. C Virus, hepatitis C virus antibody) infection. If the germ remains in these medical devices, the resulting iatrogenic infection will cause immeasurable harm and loss. Therefore, it is necessary to effectively disinfect and disinfect the anesthesia breathing equipment used by the patient.

At present, the disinfection method usually adopted is to remove the breathing circuit part of the machine, perform high temperature autoclaving or sterilize glutaraldehyde or ethylene oxide. However, due to the need for repeated disassembly and assembly, the operation is troublesome, and the machine may be damaged due to improper operation. In addition, anesthesia breathing equipment can usually be disinfected only once after a period of use, and in many cases the next anesthesia machine will arrange multiple operations a day, and it is difficult to disinfect each case one by one to make it sterile for a long time. At present, there are special researches on the control of this infection route in the world, mainly for the development and promotion of respiratory filters. A complex membrane is used in the respiratory filter to filter bacteria and viruses. But in essence, it is a passive isolation measure, a variety of bacteria and viruses are still alive, attached to the filter membrane and instruments, there is a risk of cross-infection.

[Summary of the Invention]

Based on this, it is necessary to provide an anesthetic breathing apparatus with an integrated disinfection function that can be disinfected and sterilized without disassembly.

An anesthesia machine with integrated disinfection function, comprising: an exhalation device, an inhalation device, a driving device connected with the exhalation device and the inhalation device, and a device for generating a disinfecting and sterilizing substance and/or disinfecting a disinfecting and sterilizing device for sterilizing waves, wherein the exhalation device and the air suction device respectively form an exhalation channel and an inhalation channel that communicate with each other, and the disinfection and sterilization device generates the disinfection and sterilization device Bacterial material and/or sterilizing waves enter the exhalation channel and/or the inspiratory channel to form a circuit for gas flow.

In one embodiment, the sterilization and sterilization device is disposed in the exhalation channel and/or the inspiratory channel, so that the generated sterilization and sterilization substance is injected into the exhalation channel with a gas as a carrier gas. The loop formed by the suction passage.

In one embodiment, the exhalation device includes an expiratory line that communicates with the patient through a conduit, and an expiratory check valve that is coupled to the expiratory line, the exhalation line, the exhalation one-way The valve and the drive device form an exhalation passage for exhalation of the patient's exhalation gas; the inhalation device includes an inspiratory line communicating with the patient through a conduit and an inspiratory check valve coupled to the inspiratory line, the drive The device, the inspiratory check valve, and the inspiratory line form an inspiratory gas that mixes exhaled gas and delivers fresh gas to the patient.

In one embodiment, the getter device further includes an absorption canister disposed in the inspiratory passage for absorbing carbon dioxide in the exhaled gas.

In one embodiment, the driving device comprises a manual driving device, the manual driving device comprises a manual bag and a pressure limiting valve, and the manual bag passes through the manual arm and the switching device and the exhalation device and The suction device is in communication; the pressure limiting valve is coupled to the manual bladder.

In one embodiment, the anesthesia machine further includes a fresh gas branch for providing fresh gas, the sterilization and sterilization device being respectively disposed at an inlet of the fresh gas branch, the exhalation check valve The inlet and the location of the manual arm.

In one of the embodiments, the exhaust gas discharge port of the pressure limiting valve is provided with a cleaning device.

In one embodiment, the driving device comprises a machine-controlled driving device; the machine-controlled driving device comprises a bellows, an inhalation valve and a safety valve; one end of the bellows passes through the switching device and the exhalation device and The air suction device is connected, a bellows is disposed in the wind box; the air suction valve is connected to the wind box for generating a driving gas to compress the folding bag; and the safety valve is connected to the wind box to Limit the gas pressure in the bellows.

In one embodiment, the machine controlled drive further includes an exhalation valve coupled to the bellows for controlling the pressure of the patient's exhalation.

In one of the embodiments, the exhaust vent of the exhalation valve is provided with a cleaning device.

In one embodiment, the sterilization wave is ultraviolet light, and the exhalation channel and/or the inspiratory channel are made of a transparent material that penetrates the transparent material into the exhalation channel and/or inhales In the channel.

The above anesthetic breathing apparatus is integrated with a disinfecting and sterilizing device, and the sterilizing substance and/or the sterilizing and sterilizing wave flows in the loop pipe of the anesthetic breathing apparatus or utilizes the gas circulation of the anesthetic breathing apparatus itself to realize automatic disinfection of various positions in the circuit, and No need to disassemble the circuit.

In addition, during the disinfection operation, the manual control branch and the machine control branch can be disinfected at the same time, or separately, and the operation is simple and convenient.

[Description of the Drawings]

1 is a schematic structural view of an anesthetic breathing apparatus according to a first embodiment of the present invention;

2 is a schematic structural view of an anesthetic breathing apparatus according to a second embodiment of the present invention;

Figure 3 is a disinfection scheme 1 of an anesthetic breathing apparatus of the present invention;

Figure 4 is a disinfection scheme 2 of an anesthetic breathing apparatus of the present invention;

Figure 5 is a disinfection scheme 3 of an anesthetic breathing apparatus of the present invention;

Fig. 6 is a fourth disinfection scheme of an anesthetic breathing apparatus according to the present invention.

【detailed description】

In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the understanding of the present disclosure will be more fully understood.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or the element can be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

1 is a view showing the structure of an anesthetic breathing apparatus 100 in a first embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown. The anesthetic breathing apparatus 100 includes a breathing system (not labeled) that communicates with the patient 99 for ventilation, a fresh gas branch 30, a driving device 40, and a switching between the breathing system and the driving device 40 for switching the driving mode of the driving device 40. Device 50 and sterilization device 60.

The respiratory system includes an exhalation device 10 and a getter device 20. The exhalation device 10 includes an expiratory line 13 that communicates with the patient 99 through a conduit 11 and an exhalation check valve 15 that is coupled to the expiratory line 13. The expiratory line 13, the expiratory check valve 15, and the drive unit 40 form an expiratory passage for exhalation of gas from the patient 99. The getter device 20 includes an intake line 23 that communicates with the patient 99 through the conduit 11, an intake check valve 25 that is connected to the intake line 23, and an absorption tank 27. The driving device 40, the inhalation check valve 25, and the inspiratory line 23 form an inspiratory channel for exhaled gas mixed fresh gas to be delivered to the patient 99. The absorption tank 27 is disposed in the intake passage for absorbing carbon dioxide in the exhaled gas discharged from the driving device 40. In the present embodiment, the absorption tank 27 is disposed between the driving device 40 and the suction check valve 25, and is filled with sodium lime. It can be understood that in other embodiments, the absorption tank 27 can be filled with other filtering materials for filtering carbon dioxide, which is not limited herein.

Fresh gas branch 30 is used to provide fresh gas. In the present embodiment, the fresh gas branch 30 is disposed between the absorption tank 27 and the suction check valve 25.

The driving device 40 can be switched between the machine control and the manual control mode according to the user's operation under the action of the switching device 50, and is used for accommodating the exhaled gas of the patient 99 and compressing the exhaled gas mixed with fresh air into the patient 99 lung. Inside. In the above-mentioned machine control mode and manual control mode, the exhalation channel includes a machine-controlled exhalation channel and a manual exhalation channel corresponding to the machine control mode and the manual control mode, respectively. The inhalation channel includes a machine-controlled inhalation channel and a manual inspiratory channel corresponding to the machine control mode and the manual control mode, respectively. In this embodiment, the driving device 40 includes a machine-controlled driving device 41 and a manual driving device 43. In other embodiments, the driving device 40 can be separately used with the machine-controlled driving device 41 or the manual driving device 43, and the switching device 50 can be omitted at this time.

The machine-controlled driving device 41 includes a bellows 410, an inhalation valve 413 connected to the bellows 410, a safety valve 415, and an exhalation valve 417. One end of the bellows 410 is in communication with the exhalation device 10 and the inhalation device 20 via the switching device 50, and a folded capsule 419 is disposed therein. An intake valve 413 is coupled to the bellows 410 for generating a drive gas to compress the folded bladder 419. The safety valve 415 is disposed between the bellows 410 and the exhalation valve 417 for exhausting excess gas in the bellows 410 to limit the gas pressure in the bellows 410. Exhalation valve 417 is coupled to bellows 410 for controlling the pressure of patient 99 exhaling. In the present embodiment, the machine-controlled driving device 41 is a bellows folding bag mechanism. It can be understood that in other embodiments, the machine-driven driving device 41 can also be a piston mechanism, a tortuous air passage, or the like.

When the driving device 40 is in the machine control mode, the duct 11, the exhalation line 13, the exhalation check valve 15 and the bellows 410 together form a machine-controlled exhalation passage; and the bellows 410, the suction check valve 25, the suction tube The road 23 and the duct 11 together form a machine controlled suction passage.

Upon exhalation, patient 99 exhaled gas flows through conduit 11, exhalation line 13, and exhalation check valve 15 into fold pocket 419. At the same time, fresh gas enters the folded bladder 419 via the fresh gas branch 30 through the absorption tank 27, and excess gas will be discharged through the safety valve 415. When inhaling, the driving gas generated by the suction valve 413 enters the bellows 410, and the folded capsule 419 is compressed to drive the exhaled gas in the folded capsule 419 to be discharged. The carbon dioxide in the exhaled gas discharged from the folded capsule 419 is filtered by the sodium lime in the absorption tank 27 as it passes through the absorption tank 27. The exhaled gas which filters out carbon dioxide flows together with the fresh gas through the inhalation check valve 25, the inspiratory line 23, and enters the lungs of the patient 99 again through the tube 11, thereby completing a breathing cycle.

The manual drive unit 43 includes a manual bladder 430 and an APL valve (pressure limiting valve) 432. The manual capsule 430 is externally connected to the switching device 50 via the manual arm 431, and communicates with the exhalation device 10 and the inhalation device 20 through the manual arm 431 and the switching device 50. In other embodiments, the manual capsule 430 can also be directly coupled to the switching device 50 and communicated with the exhalation device 10 and the aspiration device 20 via the switching device 50. At the same time, the manual bladder 430 can be a rubber bladder, a folded bladder or a piston or the like. The APL valve 432 is coupled to the manual bladder 430 for limiting the pressure within the anesthetic breathing apparatus 100 during assisted ventilation.

When the driving device 40 is in the manual mode, the duct 11, the expiratory line 13, the expiratory check valve 15 and the manual capsule 430 together form a manual exhalation channel; and the manual capsule 430, the inhalation check valve 25, the suction The gas line 23 and the line 11 together form a manually controlled suction channel.

Upon exhalation, patient 99 exhaled gas flows through conduit 11, exhalation line 13, and exhalation check valve 15 into manual bladder 430. At the same time, fresh gas enters the manual bladder 430 via the fresh gas branch 30 through the absorption tank 27, and excess gas will be discharged through the APL valve 432. Manual ventilation is performed through the manual bladder 430 during inhalation. At this time, carbon dioxide in the exhaled gas discharged from the manual capsule 430 is filtered by the sodium lime in the absorption tank 27 as it passes through the absorption tank 27. The exhaled gas which filters out carbon dioxide flows together with the fresh gas through the inhalation check valve 25, the inspiratory line 23, and enters the lungs of the patient 99 again through the tube 11, thereby completing a breathing cycle.

The sterilization and disinfection device 60 is configured to generate a disinfecting and sterilizing substance and/or a disinfecting and sterilizing wave to disinfect and disinfect various parts of the anesthetic breathing apparatus 100, and the disinfecting and sterilizing substances and/or the disinfecting and sterilizing wave generated by the disinfecting and sterilizing wave are generated. The gas passages and/or the suction passages form a circuit for the gas to flow. In order to meet the safety requirements for the residual concentration of the disinfecting and sterilizing substance discharged into the air, the cleaning device 70 is provided at the exhalation valve 417 of the machine-controlled driving device 41 and/or the exhaust port of the APL valve 432 of the manual driving device 43. It can be understood that in other embodiments, the number of the sterilization and sterilization device 60 and the position in the circuit can be determined according to requirements, so that the sterilization substances and/or sterilization waves generated can be accessed. It can be in the loop.

The sterilizing material and/or the sterilizing wave may be a physical, chemical or a combination of the two, such as ozone, hydrogen peroxide, ultraviolet light or the like. The sterilization device may be disposed in the exhalation channel and/or the inspiratory channel such that the generated sterilization substance is injected into the circuit formed by the exhalation channel and the inhalation channel with a gas as a carrier gas. For example, ozone can be sterilized with gas flow in the circuit. The sterilization device can also be disposed outside the circuit, for example, the ultraviolet device is installed outside the circuit formed by the exhalation channel and the inhalation channel in the anesthesia machine, and the exhalation channel and/or the inspiratory channel are made of a transparent material, and the ultraviolet light can be Occurring at one or more locations, the action of destroying the bacterial virus is achieved by penetrating into the exhalation channel and/or the inspiratory channel in the transparent material to form a loop for gas flow. As shown in FIG. 1, in the first embodiment of the present invention, the sterilization and sterilization device 60 is disposed on the fresh gas branch 30, and the disinfectant and sterilizing substance generated by the disinfectant and sterilizing material is injected into the exhalation channel and the inhalation channel with fresh gas as a carrier gas. Among the loops formed. In the present embodiment, the sterilization and sterilization device 60 uses fresh gas as a carrier gas to achieve diffusion of the sterilization and sterilization material. It will be appreciated that in other embodiments, the sterilization device 60 may also be self-contained with an air pump, thereby eliminating the need for fresh gas as the carrier gas.

As shown in Fig. 2, in the second embodiment of the present invention, three sterilization and sterilization devices 60a, 60b, 60c are respectively disposed at the inlet of the fresh gas branch 30, the inlet of the exhalation check valve 15, and the manual arm 431. Position, so that the sterilizing substance flows with the gas exhaled by the patient 99 and the inhaled gas flows into the circuit of the entire expiratory channel and the inspiratory channel, and utilizes the gas circulation of the anesthetic breathing apparatus 100 itself to realize various positions in the circuit. The disinfectant is evenly distributed.

In order to uniformly distribute the sterilizing and sterilizing substances generated by the sterilizing and sterilizing device 60 into the anesthetic breathing apparatus 100 during the sterilizing operation, various ways may be adopted to connect the branches in the anesthetic breathing apparatus 100 to form an airflow loop to drive the disinfection. The sterilized material diffuses to various parts of the anesthetic breathing apparatus 100.

As shown in FIG. 3, the drive unit 40 is switched to the machine control position, and the duct 11 is connected to the manual arm 431 to allow the exhalation passage and the intake passage to communicate with the manual drive unit 43 through the duct 11. At this time, the sterilizing and sterilizing substances generated by the sterilizing and sterilizing apparatuses 60a, 60b, and 60c are injected into the circuit. In the inhalation phase, the folding capsule 419 presses the circulating gas in the circuit together with the sterilizing substance injected with the fresh gas into the manual bag 430; in the exhalation phase, the manual bag 430 presses the circulating gas mixed with the sterilizing and sterilizing substance into the folding The bladder 419, excess gas is expelled from the safety valve 415 and the exhalation valve 417, thereby completing a breathing cycle. Repeatedly, the sterilizing and sterilizing substances are evenly distributed to various positions in the circuit by rinsing, spreading, spreading, or utilizing the breathing action of the anesthetic breathing apparatus 100 itself. In addition, the effective disinfection and sterilization of the manual branch and the machine-controlled branch can be achieved by maintaining a stable concentration for a period of time to meet the requirements of sterilization and sterilization. It will be appreciated that in other embodiments, the manual branch and the machined branch may be separately sterilized separately.

As shown in FIG. 4-6, when the sterilization operation is performed, the manual capsule 430 and the pipe 11 can be omitted, and the branch outlet of the anesthetic breathing apparatus 100 can be closed, so that the disinfecting and disinfecting substance can flow or spread in the circuit. Not leaking to the outside world. For example, the inspiratory line 23, the expiratory line 13 and the outlet of the manual arm 431 can be directly closed (as shown in Fig. 4); the inspiratory line 23 and the expiratory line 13 are connected by a bellows (Fig. 5). Or plug the expiratory line 13 with a bellows to connect the inspiratory line 23 and the manual arm 431 (see Figure 6).

In the above manner, in the inhalation phase, the folding capsule 419 presses the circulating gas in the circuit and the sterilization and sterilization substance injected with the fresh gas into the exhalation device 10 and the inhalation device 20 through the switching device 50; At the stage, the circulating gas mixed with the sterilizing and sterilizing substance is again reintroduced into the folding capsule 419 by the exhalation device 10 and the suction device 20. Repeatedly, the sterilizing and sterilizing substances are evenly distributed to various positions in the circuit by rinsing, spreading, spreading, or utilizing the breathing action of the anesthetic breathing apparatus 100 itself. In addition, the effective disinfection and sterilization of the manual branch and the machine-controlled branch can be achieved by maintaining a stable concentration for a period of time to meet the requirements of sterilization and sterilization.

The anesthetic breathing apparatus 100 described above is integrated with a sterilization and sterilization device 60. The sterilization and sterilization substance flows in the circuit of the anesthetic breathing apparatus 100 or utilizes the gas circulation of the anesthetic breathing apparatus 100 itself to realize automatic disinfection of various positions in the circuit without disassembling the circuit. . At the same time, during the disinfection operation, the manual control branch and the machine control branch can be disinfected at the same time, or separately, and the operation is simple and convenient.

The above-mentioned embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

An anesthesia machine with integrated disinfection function, comprising: an exhalation device, an inhalation device, a driving device connected with the exhalation device and the inhalation device, and a device for generating a disinfecting and sterilizing substance and/or disinfecting a disinfecting and sterilizing device for sterilizing waves, wherein the exhalation device and the air suction device respectively form an exhalation channel and an inhalation channel that communicate with each other, and the disinfection and sterilization device generates the disinfection and sterilization device Bacterial material and/or sterilizing waves enter the exhalation channel and/or the inspiratory channel to form a circuit for gas flow.
The anesthesia machine with integrated disinfection function according to claim 1, wherein the sterilization and sterilization device is disposed in the exhalation channel and/or the inhalation channel, so that the generated sterilization and sterilization substance is gas A carrier gas is injected into the circuit formed by the exhalation passage and the inhalation passage.
The anesthesia machine with integrated disinfection function according to claim 1, wherein said exhalation device comprises an expiratory line communicating with a patient through a duct and an exhalation check valve connected to the expiratory line, An exhalation line, the exhalation check valve, and the drive device form an exhalation passage for exhalation of gas from a patient; the inhalation device includes an inspiratory line that communicates with the patient through a conduit, and an inspiratory line A connected suction check valve, the drive device, the suction check valve, and the suction line form an inspiratory gas that mixes exhaled gas and delivers fresh gas to the patient.
The anesthesia machine with integrated disinfection function according to claim 3, wherein the getter device further comprises an absorption tank, and the absorption tank is disposed in the intake passage for absorbing carbon dioxide in the exhaled gas.
The anesthesia machine with integrated disinfection function according to claim 3, wherein the driving device comprises a manual driving device, the manual driving device comprises a manual bag and a pressure limiting valve, and the manual bag passes the manual arm and the device. The switching device is in communication with the exhalation device and the inhalation device; the pressure limiting valve is coupled to the manual bag.
The anesthesia machine with integrated disinfection function according to claim 5, wherein the anesthesia machine further comprises a fresh gas branch for supplying fresh gas, and the sterilization and sterilization device is respectively disposed on the fresh gas branch The inlet, the inlet of the exhalation check valve, and the position of the manual arm.
The anesthesia machine with integrated disinfection function according to claim 5, characterized in that the exhaust gas discharge port of the pressure limiting valve is provided with a cleaning device.
The anesthesia machine with integrated disinfection function according to claim 3, wherein the driving device comprises a machine-controlled driving device; the machine-controlled driving device comprises a bellows, an inhalation valve and a safety valve; one end of the bellows passes The switching device is in communication with the exhalation device and the inhalation device, and the bellows is provided with a folding capsule; the inhalation valve is connected to the bellows for generating a driving gas to compress the folding capsule; The safety valve is coupled to the bellows to limit gas pressure within the bellows.
The anesthesia machine with integrated disinfection function according to claim 8, wherein the machine-controlled driving device further comprises an exhalation valve, and the exhalation valve is connected to the bellows for performing pressure on the patient exhalation control.
The anesthesia machine with integrated disinfection function according to claim 9, wherein the exhaust gas discharge port of the exhalation valve is provided with a cleaning device.
The anesthesia machine with integrated disinfection function according to claim 1, wherein the disinfecting and sterilizing wave is ultraviolet light, and the exhalation channel and/or the inspiratory channel are made of a transparent material, and the ultraviolet penetrating is transparent. The material enters the expiratory channel and/or the inspiratory channel.