CN217724171U - Breathing machine exhaust degassing unit and breathing machine - Google Patents

Abstract

The utility model provides a breathing machine exhaust degassing unit and breathing machine, wherein this breathing machine exhaust degassing unit includes: the ultraviolet light generating unit, the disinfection pipe, the casing, connect the pipe fitting, the light source part and the disinfection pipe of ultraviolet light generating unit are covered to the casing, and wherein light source part is connected with the casing in order to fix at the casing inner chamber and set up around the disinfection pipe, and the ultraviolet ray that light source part throws simultaneously transmits the disinfection pipe, connect the pipe fitting and be connected with the casing, in order to link up disinfection pipe and breathing machine blast pipe, thereby the dress is in breathing machine exhaust pipe section, ensures to obtain the required ultraviolet dose of disinfection through gaseous, promotes the disinfection effect of disinfecting.

Description

Breathing machine exhaust degassing unit and breathing machine

Technical Field

The utility model relates to a degassing unit especially relates to an adopt ultraviolet disinfection means to be used for sterile device of breathing machine exhaust and breathing machine.

Background

In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia respiratory management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and is a vital medical device capable of preventing and treating respiratory failure, reducing complications and saving and prolonging the life of a patient. Nowadays, the function of the ventilator is more important, but the hidden danger of the ventilator is more exposed: the gas exhausted by the respirator contains a large amount of pathogenic bacteria and viruses, and is directly exhausted into the air without effective disinfection, so that the pathogenic bacteria and the viruses are diffused, and cross infection is caused.

The breathing machine does not have a mature and effective exhaust disinfection device at present, and the chemical disinfection can not solve the instant disinfection problem. The heating sterilization needs to be carried out by instantly raising the temperature of the flowing gas to high temperature, and is difficult to realize. The penetrating radiation sterilization has high cost and is difficult to realize instantaneous sterilization. The requirement of ultraviolet disinfection for killing various pathogenic microorganisms is limited by large instantaneous flow and high flow speed of exhalation, and the corresponding instantaneous ultraviolet dose cannot reach a high value (such as 20 mJ/cm) ² ) And meanwhile, the phenomenon of condensed water in the exhaust pipe of the breathing machine caused by the temperature difference between the inside and the outside of the pipe in the exhaust gas of the breathing machine is limited, so that the ultraviolet irradiation is influenced, and the problem of insufficient ultraviolet dose is caused, thereby generally solving the problem of the traditional ultravioletHigh uv doses are difficult to achieve with disinfection solutions and therefore the disinfection effect is not ideal. If the disinfection channel is prolonged, the volume of the breathing machine is obviously increased, and inconvenience is brought to use.

In addition, chinese patent 202020337378.1 discloses a filter purifier for filtering harmful substances of bacteria and viruses for a respirator, which adopts two ultraviolet lamps and filter cotton with disinfectant to carry out multi-channel disinfection on gas discharged from the respirator, on one hand, the bacteria and viruses are killed by ultraviolet rays, the ultraviolet dose of the bacteria and viruses cannot reach the inactivation dose of pathogenic microorganisms such as bacteria and viruses, on the other hand, the filter cotton with disinfectant is also used to filter air irradiated by ultraviolet rays to make up for the deficiency of the ultraviolet dose, the scheme cannot solve the problem of thorough disinfection, in addition, in use, the high-efficiency filter material can bring certain resistance in an exhaust pipeline, the filter material can be blocked and needs to be frequently replaced, and simultaneously, the ultraviolet light source of the filter material is arranged in a disinfection pipeline and is difficult to clean.

SUMMERY OF THE UTILITY MODEL

Therefore, the main object of the present invention is to provide a ventilator exhaust sterilization device and a ventilator, which are assembled on the exhaust pipe section of the ventilator to ensure that the ultraviolet dose required for sterilization can be obtained through gas.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a ventilator exhaust gas sterilizing apparatus comprising: the ultraviolet ray generating unit comprises an ultraviolet ray generating unit, a sterilizing tube and a shell, wherein the shell covers a light source part and the sterilizing tube of the ultraviolet ray generating unit, the light source part is connected with the shell to be fixed in an inner cavity of the shell and arranged around the sterilizing tube, meanwhile, the ultraviolet ray projected by the light source part is transmitted through the sterilizing tube, and at least one end of the sterilizing tube is communicated with an exhaust pipe of the respirator.

Preferably, at least one end port of the disinfection tube is in a shape of a gradually narrowing trumpet.

Preferably, the disinfection tube is made of one of a quartz tube or purple glass which is transparent to ultraviolet rays, the UVC transmittance of the disinfection tube is more than or equal to 80 percent, the length of the disinfection tube is 80-200mm, and the inner diameter of the disinfection tube is more than or equal to 2 times of the inner diameter of an exhaust tube of the breathing machine.

Preferably, the light source part of the ultraviolet light generating unit is at least one of an ultraviolet lamp tube or a UVC LED, and the ultraviolet wavelength thereof is 200 to 280nm.

Preferably, the inner wall surface of the shell comprises: any one of polished aluminum, polished stainless steel or magnesium oxide is made of a material capable of reflecting ultraviolet rays.

Preferably, the ultraviolet light generating unit includes: the shell is also provided with a control panel and a power source interface, wherein the control panel, the power source interface and the light source component are respectively connected with the control module, and the driving power source module is connected with the control module through the power source interface.

Preferably, the light source part of the ultraviolet light generating unit is a spiral ultraviolet lamp tube, the ultraviolet wavelength of the spiral ultraviolet lamp tube is 253.7nm, the spiral ultraviolet lamp tube is connected with the shell to form heat conduction contact, and the spiral ultraviolet lamp tube is wound on the outer wall of the disinfection tube, so that the ultraviolet light intensity and the uniformity of the light intensity in the disinfection tube are improved.

In order to achieve the above object, according to a second aspect of the present invention, there is provided a ventilator exhaust gas sterilizing apparatus comprising: ultraviolet ray generation unit, the disinfection pipe, the casing, the connecting tube spare, this casing shade ultraviolet ray generation unit's light source part and disinfection pipe, this light source part sets up around the disinfection pipe in the casing inner chamber, and the ultraviolet ray transmission disinfection pipe that light source part throws out simultaneously should connect the pipe fitting and be connected with the casing to link up disinfection pipe and breathing machine blast pipe.

Preferably, trachea interfaces are arranged on two sides of the shell, two ends of the disinfection tube are respectively sleeved with the trachea interfaces, a first interface of the connecting tube is in a gradually narrowed horn shape to a second interface, the connecting tube is connected with the trachea interfaces through the first interface and is communicated with the disinfection tube, and the connecting tube is communicated with the exhaust pipe of the respirator through the second interface.

Preferably, the disinfection tube is made of one of a quartz tube or purple glass which is transparent to ultraviolet rays, the UVC transmittance of the disinfection tube is more than or equal to 80 percent, the length of the disinfection tube is 80-200mm, and the inner diameter of the disinfection tube is more than or equal to 1.5 times of the inner diameter of the exhaust tube of the respirator.

Preferably, the light source part of the ultraviolet light generating unit is at least one of an ultraviolet lamp tube or a UVC LED, and the ultraviolet wavelength thereof is 200 to 280nm.

Preferably, the inner wall surface of the shell comprises: any one of polished aluminum, polished stainless steel or magnesium oxide is made of a material capable of reflecting ultraviolet rays.

Preferably, the ultraviolet light generating unit includes: the shell is also provided with a control panel and a power supply interface, wherein the control panel, the power supply interface and the light source component are respectively connected with the control module, and the driving power supply module is connected with the control module through the power supply interface.

Preferably, the light source part of the ultraviolet light generating unit is a spiral ultraviolet lamp tube, the ultraviolet wavelength of the spiral ultraviolet lamp tube is 253.7nm, the spiral ultraviolet lamp tube is connected with the shell to form heat conduction contact, and the spiral ultraviolet lamp tube is wound on the outer wall of the disinfection tube.

In order to achieve the above object, according to the third aspect of the present invention, there is also provided a breathing apparatus, wherein the exhaust pipe of the breathing apparatus is connected with a gas disinfection device, and the gas disinfection device is made by the structure of any breathing apparatus exhaust disinfection device of the first to second aspects of the present invention.

Through the utility model provides a this breathing machine exhaust degassing unit and breathing machine can adopt the ultraviolet disinfection means, and the adaptation is in breathing machine exhaust section, owing to adopted the design of spiral ultraviolet fluorescent tube winding on the disinfection pipe simultaneously, consequently, can make the even coefficient of ultraviolet light intensity distribution reach more than 77% in the ultraviolet ray section of passing through of disinfection pipe in theory at least.

On the other hand, it is worth mentioning that, because the spiral ultraviolet lamp tube is connected with the shell to form a heat conduction contact design structure, the work heat of the ultraviolet lamp tube can be effectively conducted to the shell, so that the temperature of the inner cavity of the shell is raised, and meanwhile, the design that the ultraviolet lamp tube is wound on the disinfection tube is matched, the work heat of the lamp tube can be further enabled to be raised to a temperature slightly higher than the temperature of the gas exhaled by a common patient user in a radiation/contact mode, so that the influence of condensed water in the disinfection tube on the ultraviolet dose received by the gas is reduced or even eliminated.

In addition, due to the breathing characteristics of people, the phenomenon of 'jet flow' exists in the gas exhausted by the breathing machine, namely the gas flow rate at a certain moment is far higher than the average flow rate, so that the problems of high flow rate, short disinfection time and insufficient ultraviolet dose exist. Under some embodiments, the part connected with the exhaust pipe of the breathing machine adopts a bell-mouthed design, so that the influence of the phenomenon of 'jet flow' can be weakened, the air flow flowing into the disinfection pipe is more smooth and uniform, the average flow speed of the air at each point on the inner section of the disinfection pipe is reduced, and the ultraviolet dose received by each molecule in the air is ensured. In addition, the breathing machine exhaust disinfection device is compact and small in design structure, so that the breathing machine exhaust disinfection device can be directly connected to an existing breathing machine exhaust pipeline under the condition that an additional fixing support is not needed, the breathing machine is suitable for low cost modification and upgrading of the breathing machine in the prior art, the whole breathing machine exhaust disinfection device is convenient to install, maintain and replace, and certain market application and popularization values are achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic structural view of a ventilator exhaust sterilization device according to the present invention;

FIG. 2 is a perspective view of a housing of the ventilator exhaust sterilization apparatus of the present invention;

FIG. 3 is a schematic view of an assembly structure of the ventilator exhaust sterilization device of the present invention;

FIG. 4 is a schematic view of a half-section structure of the ventilator exhaust sterilization apparatus of the present invention;

FIG. 5 is a schematic view of a half-section assembly structure of the ventilator exhaust sterilization apparatus of the present invention;

FIG. 6 is a schematic view of a half-section of a ventilator exhaust sterilization unit using an integrated sterilization tube structure.

Description of the reference numerals

Ultraviolet light generating unit 1, disinfection tubes 2, 2', shell 3, respirator exhaust pipe 4, light source part 11, control module 12, driving power supply module 13, trachea interface 31, connecting tube 32, control panel 33, power supply interface 34, first interface 321, second interface 322, and sealing washer 323.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. And the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "installed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art in combination with the prior art according to specific situations. Furthermore, the embodiments and features of the embodiments of the present invention may be combined without conflict. One or more of the illustrated components may be required or unnecessary, and the relative positions of the illustrated components may be adjusted according to actual needs.

In view of the characteristics of current breathing machine, before gaseous through exhaling the return circuit arrival breathing machine internal loop at patient's exhalation in order to utilize the ultraviolet ray of high strength, disinfect gas, exterminate various common bacterial virus including new crown virus, the utility model provides a breathing machine degassing unit, it is compared and adopts the mode that filters and antiseptic solution combined together to compare in prior art, can realize at least reducing the windage, maintain high purification efficiency, simplify equipment maintenance work, reduce the part or whole efficiency in the resource consumption.

As shown in fig. 1 to 6, the ventilator exhaust gas sterilizing apparatus according to the example of the present invention includes: the ultraviolet light generating unit 1, the ultraviolet ray transmitting disinfection tube 2, the shell 3, wherein the shell 3 is provided with an inner cavity, the light source part 11 and the disinfection tube 2 of the ultraviolet light generating unit 1 are accommodated in the inner cavity of the shell 3, and the light source part 11 of the ultraviolet light generating unit 1 is connected with the shell 3 to form heat conduction contact, so that the working heat of the light source part 11 is conducted to the shell 3 to increase the temperature of the inner cavity of the shell 3, meanwhile, the light source part 11 is arranged around the disinfection tube 2 in the inner cavity of the shell to enable the ultraviolet ray emitted by the light source part to cover the disinfection tube 2, thereby on one hand, the condensed water in the disinfection tube 2 can be reduced or even eliminated, on the other hand, the ultraviolet dose of the gas transmitted in the disinfection tube 2 can be increased, and the primary sterilization and disinfection effect can be improved.

Specifically, in the present embodiment, the light source part 11 of the ultraviolet light generating unit 1 may be at least one of an ultraviolet lamp tube or a UVC LED, the ultraviolet wavelength of which is preferably 200 to 280nm, especially 253.7nm, so as to be disposed at least around the ultraviolet-transmitting line section of the disinfection tube 2. In the embodiment, the disinfection tubes 2 and 2' may be all transparent to ultraviolet rays or may be partially transparent to ultraviolet rays, for example, the openings at the two ends of the disinfection tube are provided with coatings for preventing ultraviolet rays from leaking or made of materials that are not transparent to ultraviolet rays, and the like, and those skilled in the art can reasonably select and understand the disinfection tube according to the embodiment.

As in a preferred embodiment, the UVC LED strip may be wound, wrapped or arrayed around the uv-transparent section of the disinfection tube 2, which may improve the uniformity factor of the uv intensity distribution within the disinfection tube 2. Simultaneously in preferred embodiment, if UVC LED sets up to heat conduction contact structure with disinfection pipe 2, can further conduct its work heat, make 2 pipe wall temperature raising efficiency of disinfection pipe promote to the temperature that is a little higher than usual disease user's expired gas, thereby reduce or even eliminate the influence that interior water smoke of disinfection pipe 2 or comdenstion water accepted the ultraviolet dose to gas.

In another preferred embodiment, as shown in fig. 2 to 4, the light source component 11 in the present application may further adopt a spiral ultraviolet lamp tube, which is sleeved and wound on the disinfection tube 2 to improve the uniformity coefficient of the ultraviolet light intensity distribution in the disinfection tube 2, so as to reduce the volume required by the inner cavity of the housing 3, further reduce the volume of the device in the present application, reduce the cost, and simultaneously, because the spiral ultraviolet lamp tube is also connected with the housing 3 to form heat conduction, the temperature in the inner cavity of the housing 3 can be effectively raised.

On the other hand, in order to stabilize the assembly position of the spiral ultraviolet lamp tube and the disinfection tube 2 in the housing 3, as shown in fig. 2 and 4, two sides of the housing 3 are respectively provided with an air tube connector 31, wherein the air tube connector 31 is communicated with the inner cavity of the housing 3, so that two ends of the disinfection tube 2 are respectively sleeved with the air tube connector 31, so that the disinfection tube 2 is suspended in the inner cavity of the housing 3, and the spiral ultraviolet lamp tube can be wound on the outer wall of the disinfection tube 2 to be accommodated and fixed in the inner cavity of the housing 3 and can be in contact with the disinfection tube 2, so as to conduct heat of the spiral ultraviolet lamp tube in the working state to the disinfection tube 2, so that the temperature rise efficiency of the tube wall of the disinfection tube 2 is further increased, so as to be slightly higher than the temperature of the air exhaled by a common patient, thereby reducing or even eliminating the influence of water mist or condensed water in the disinfection tube 2 on the amount of ultraviolet received by the air.

In addition, as can be understood by those skilled in the art, due to the special design structure that the light source component 11 is coupled and irradiated with the disinfection tube 2 in a winding manner or the like, the operating temperature of the ultraviolet lamp tube or the UVC LED can also be increased to a certain extent by adjusting the power of the light source component 11 of the ultraviolet light generating unit 1, so that the elimination of condensed water in the disinfection tube 2 can be accelerated, the efficiency of the gas receiving ultraviolet dose can be further stabilized, and the primary sterilization and disinfection effect can be improved.

On the other hand, after the disinfection tube 2 is connected with the exhaust tube 4 of the breathing machine, the 'jet flow' phenomenon is generated, so that the ultraviolet dose of the gas can be reduced, and the ultraviolet dose of the gas can be stabilized only by weakening the influence of the 'jet flow' phenomenon and enabling the gas flow flowing into the disinfection tube 2 to be more smooth and uniform.

Therefore, in one embodiment, in order to reduce the "jet flow" problem, as shown in fig. 6, the two end ports of the disinfection tube 2' are preferably designed to be in a shape of an integral gradually narrowing trumpet, so that the average flow velocity of the gas at each point on the inner cross section of the middle section of the disinfection tube 2' is reduced, so as to ensure that each molecule in the gas can receive enough ultraviolet dose in the middle section of the disinfection tube 2', thereby improving the primary disinfection effect. Of course, for those skilled in the art to adapt to different types of ventilators, in other embodiments, the flare can be separately provided at only one end of the disinfection tube 2 'so as to slow down the air flow velocity passing therethrough at least to some extent, thereby obtaining the effect of increasing the ultraviolet radiation dose, and it is not limited to the number of flares of the disinfection tube 2' in this embodiment, and those skilled in the art can select the implementation according to actual conditions.

In addition, in a preferred embodiment, at least the ultraviolet ray transmitting section of the disinfection tube 2 'is made of one of a quartz tube or purple glass, the UVC transmittance is more than or equal to 80%, and the length of the ultraviolet ray transmitting section of the disinfection tube 2' is preferably 80-200mm, and the inner diameter of the ultraviolet ray transmitting section is more than or equal to 2 times of the inner diameter of the exhaust pipe 4 of the respirator, so that the ultraviolet disinfection time when gas flows through the ultraviolet ray transmitting section is favorably prolonged.

In another preferred embodiment, since the material of the disinfection tube 2 is weak, in order to protect the disinfection tube 2, reduce the effect of the "jet" phenomenon, reduce the manufacturing cost of the disinfection tube 2, and facilitate the coupling with the ventilator exhaust tube 4, as shown in fig. 2 to 5, in this embodiment, the disinfection tube 2 is a straight tube shape, which is inserted into the trachea interface 31 of the housing 3 to suspend in the inner cavity of the housing 3, and the ventilator exhaust disinfection apparatus further includes a connecting tube 32, the first interface 321 to the second interface 322 of the connecting tube 32 are in a gradually narrowing trumpet shape to replace the trumpet-shaped ports at the two ends of the disinfection tube 2', and the second interface 322 of the connecting tube 32 is preferably in threaded coupling with the trachea interface 31 to communicate with the disinfection tube 2, and a sealing gasket 323 is disposed at the connection position where the second interface 322 of the connecting tube 32 communicates with the disinfection tube 2, so as to improve the connection airtightness, prevent the gas carrying bacteria and viruses from leaking out, and improve the reliability.

In addition, in a further preferred example, the air tube interface 31 of the housing 3 may also be detachably connected to the body of the housing 3, such as by bolts, so as to be easily detached and separated, and in combination with the detachable connecting tube member 32, the device may be easily disassembled for cleaning, replacing the disinfection tube 2, the exhaust pipe or performing partial replacement and repair, so as to be suitable for practical use.

The sterilizing tube 2 can be made of quartz tube or purple glass material, the UVC transmittance is more than or equal to 80%, meanwhile, the length of the sterilizing tube 2 is preferably 60-200mm or 120mm, wherein the length is less than 60mm, the ultraviolet radiation time is short, the ultraviolet dose of gas is insufficient, and the length is more than 200mm, so that the volume, the weight and the cost of the device are increased, the device is not economical, the volume is large, and the use is inconvenient.

Meanwhile, the inner diameter of the disinfection tube 2 is preferably 40mm-80mm, because when the inner diameter is smaller than 40mm, the flow velocity in the tube is high, the ultraviolet dose is insufficient, and the tube diameter is larger than 80mm, the use is inconvenient, in addition, the inner diameter of the disinfection tube 2 is preferably more than or equal to 1.5 times of the inner diameter of the exhaust tube 4 of the respirator, so that the ultraviolet disinfection time when gas flows through the tube is favorably prolonged, and the volume and the weight of the device are compressed as much as possible.

On the other hand, in a preferred embodiment, the housing 3 is preferably made of an aluminum material with a lower density, which can greatly reduce the weight of the device compared to other materials such as stainless steel, and has the advantage of resisting ultraviolet aging compared to plastics, and in order to improve the utilization rate of ultraviolet light in the inner cavity of the housing 3, it is preferable to provide a dense aluminum oxide film, polished aluminum, polished stainless steel or magnesium oxide coating on the wall surface of the inner cavity of the housing 3 to have a high reflectivity to ultraviolet light, so as to improve the utilization rate of the device to ultraviolet light, and further improve the ultraviolet dose to the gas in the disinfection tube 2.

Further, in the present embodiment, a preferable example of the ultraviolet light generating unit 1 includes: the light source module comprises a control module 12, a driving power module 13 and a light source part 11, wherein a control panel 33 and a power interface 34 are further arranged on the shell 3, the control panel 33, the power interface 34 and the light source part 11 are respectively connected with the control module 12, and the driving power module 13 is connected with the control module 12 through the power interface 34. As shown in fig. 1, in this example, the driving power module 13 is preferably externally arranged, so as to reduce the weight of the device body coupled with the exhaust pipe 4 of the ventilator, but in other possible embodiments, a high-cost integrated circuit power driving chip in the prior art may be used instead.

In an example, the control module 12 can be activated by operating the control module 12 to control the light source component 11 to glow, and in a further example, the control panel 33 can operate the control module 12 to regulate and control the working power of the light source component 11, so as to indirectly control and increase the working heat, thereby controlling and increasing the efficiency of eliminating the condensed water. Meanwhile, the control module 12, the driving power module 13, the light source unit 11, and the control panel 33 are all known in the art of lighting technology, such as a dimming scheme, so that a person skilled in the art can implement the combination according to the prior art.

The utility model discloses another aspect has still exemplified a breathing machine, and wherein even there is gaseous degassing unit on the exhaust pipe of this breathing machine, and this gaseous degassing unit adopts as in the embodiment arbitrary breathing machine exhaust degassing unit's structure to make.

For a medical respirator, in an example, the exhaust disinfection device of the respirator can be arranged between the 4 paths of the exhaust pipe of the respirator and the air pressure sensor, and is beneficial to protecting the air pressure sensor and the flow sensor. For a domestic ventilator, the ventilator exhaust gas disinfection unit is preferably mounted in the ventilator exhaust line.

To sum up, through the utility model provides a this breathing machine exhaust degassing unit and breathing machine can adopt the ultraviolet disinfection means, and the adaptation is at breathing machine exhaust pipeline section, owing to adopted the design of spiral ultraviolet fluorescent tube winding on the disinfection pipe simultaneously, consequently, can make the even coefficient of ultraviolet light intensity distribution reach more than 77% in the ultraviolet ray section of passing through of disinfection pipe at least theoretically.

On the other hand, it is worth mentioning that, because the spiral ultraviolet lamp tube is connected with the shell to form a heat conduction contact design structure, the work heat of the ultraviolet lamp tube can be effectively conducted to the shell, so that the temperature of the inner cavity of the shell is raised, and meanwhile, the design that the ultraviolet lamp tube is wound on the disinfection tube is matched, the work heat of the lamp tube can be further enabled to be raised to a temperature slightly higher than the temperature of the gas exhaled by a common patient user in a radiation/contact mode, so that the influence of water mist or condensed water in the disinfection tube on the ultraviolet dose received by the gas is reduced or even eliminated.

In addition, due to the breathing characteristics of people, the phenomenon of 'jet flow' exists in the gas exhausted by the breathing machine, namely the gas flow rate at a certain moment is far higher than the average flow rate, so that the problems of high flow rate, short disinfection time and insufficient ultraviolet dose exist. In some embodiments, the components connected to the exhaust pipe 4 of the ventilator adopt a bell-mouthed design, so that the influence of the "jet" phenomenon can be weakened, the air flow flowing into the disinfection pipe 2 is more smooth and uniform, the average flow rate of the gas at each point on the inner cross section of the disinfection pipe 2 is reduced, and the ultraviolet dose received by each molecule in the gas is ensured.

In addition, the design structure of the breathing machine exhaust disinfection device is compact and small, so that the breathing machine exhaust disinfection device can be directly connected to the existing breathing machine exhaust pipeline under the condition of no additional fixing support, is suitable for low-cost modification and upgrading of the breathing machine in the prior art, is convenient to integrally install, maintain and replace, and has certain market application and popularization value.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the appended claims and their full scope and equivalents, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.

Claims (10)

1. A ventilator exhaust gas disinfection apparatus, comprising: the ultraviolet ray generating unit comprises an ultraviolet ray generating unit, a sterilizing tube and a shell, wherein the shell covers a light source part and the sterilizing tube of the ultraviolet ray generating unit, the light source part is connected with the shell to be fixed in an inner cavity of the shell and arranged around the sterilizing tube, the ultraviolet ray projected by the light source part is transmitted through the sterilizing tube, and at least one end of the sterilizing tube is communicated with an exhaust pipe of the respirator.

2. The apparatus of claim 1, wherein the disinfection tube is flared such that at least one end port of the disinfection tube narrows.

3. A breathing machine exhaust gas disinfection device, characterized by comprising: ultraviolet ray generates the unit, the disinfection pipe, and the casing connects the pipe fitting, the light source part and the disinfection pipe of casing shade ultraviolet ray generation unit, the light source part sets up around the disinfection pipe in the casing inner chamber, and the ultraviolet ray transmission disinfection pipe that the light source part throws out simultaneously, connect the pipe fitting to be connected with the casing to link up disinfection pipe and breathing machine blast pipe.

4. The exhaust gas sterilizing apparatus of claim 3, wherein the two sides of the housing are provided with air pipe connectors, two ends of the sterilizing pipe are respectively sleeved with the air pipe connectors, the first connector to the second connector of the pipe connecting member are in a gradually narrowed trumpet shape, the pipe connecting member is connected with the air pipe connectors through the first connector for communicating with the sterilizing pipe, and the pipe connecting member is communicated with the exhaust pipe of the respirator through the second connector.

5. The apparatus as claimed in claim 3, wherein the sterilizing tube is made of one of a quartz tube or a purple glass which is transparent to ultraviolet rays, and has a UVC transmittance of 80% or more, and the length of the sterilizing tube is 80-200mm, and the inner diameter of the sterilizing tube is 1.5 times or more the inner diameter of the ventilator.

6. The apparatus of claim 3, wherein the light source component of the ultraviolet light generating unit is at least one of an ultraviolet lamp or a UVC LED, and the ultraviolet wavelength is 200-280nm.

7. The breathing machine exhaust gas disinfecting device of claim 3, wherein the housing interior wall surface comprises: any one of polished aluminum, polished stainless steel or magnesium oxide is made of a material capable of reflecting ultraviolet rays.

8. The ventilator exhaust gas disinfection apparatus of claim 3, wherein said ultraviolet light generation unit comprises: the shell is further provided with a control panel and a power source interface, wherein the control panel, the power source interface and the light source component are respectively connected with the control module, and the driving power source module is connected with the control module through the power source interface.

9. The apparatus according to any one of claims 3 to 8, wherein the light source unit of the ultraviolet light generating unit is a spiral ultraviolet lamp having an ultraviolet wavelength of 253.7nm, and the spiral ultraviolet lamp is connected to the housing to be in heat conductive contact with the housing and wound around the outer wall of the sterilizing tube.

10. A respirator, characterized in that a gas disinfection device is connected to an exhaust pipeline of the respirator, wherein the gas disinfection device adopts the respirator exhaust disinfection device as claimed in any one of claims 1 to 9.

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