CN113648494A

CN113648494A - Artificial nose

Info

Publication number: CN113648494A
Application number: CN202110875912.3A
Authority: CN
Inventors: 冯梅; 徐玲; 杨荀
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-16
Anticipated expiration: 2041-07-30
Also published as: CN113648494B

Abstract

The invention provides an artificial nose, which aims to solve the technical problem that the service cycle is short because the existing artificial nose needs to be replaced after being blocked. The artificial nose includes: a housing in which a receiving portion for receiving a moisture-heat exchange material is provided; the breathing connecting pipe is arranged on the shell and is communicated with the accommodating part; wherein at least two receiving parts are arranged in the shell; and the at least two accommodating parts are mutually switchably conducted with the breathing connecting pipe. When the moisture and heat exchange material in one of the at least two receiving parts is polluted and blocked, the other receiving part can be switched to be communicated with the breathing connecting pipe, so that the moisture and heat exchange material in the receiving part is continuously utilized to breathe, the replacement period of the artificial nose is prolonged, and the economic burden of a patient is reduced.

Description

Artificial nose

Technical Field

Embodiments of the present invention relate to artificial noses.

Background

Because the function of the upper respiratory tract of a patient is lost after tracheotomy, inhaled air cannot be sufficiently humidified and warmed, sputum is easily dried and knotted, and the discomfort of the patient is aggravated. Therefore, it is currently common to use an artificial nose (moisture-heat exchanger) to replace the function of the upper respiratory tract of a patient clinically. However, there is still a certain safety risk with the use of artificial noses, in particular: under the condition that the secretion of the airway of a patient is more, when severe cough occurs, the airway pressure is increased, sputum is sprayed and expectorated on the damp and heat exchange material of the artificial nose, the ventilation part of the artificial nose is blocked, further, the hypoxia and/or carbon dioxide retention of the patient can be caused, and the patient can be suffocated when the patient is severe. In contrast, the conventional method at present is to strengthen the manual inspection force so as to find potential safety hazards in time and replace the artificial nose quickly after the potential safety hazards are found. However, the operation increases the workload of medical staff; in addition, the replacement of the artificial nose is frequent, so that the economic burden of the patient is increased.

Disclosure of Invention

An object of the embodiment of the invention is to provide an improved artificial nose, so as to solve the technical problem that the service cycle is short because the existing artificial nose needs to be replaced after being blocked. In addition, another object of the embodiments of the present invention is to provide an improved artificial nose to solve the technical problem of more conveniently identifying the potential safety hazard of artificial nose blockage.

According to a first aspect of the present invention, there is provided an artificial nose comprising: a housing in which a receiving portion for receiving a moisture-heat exchange material is provided; the breathing connecting pipe is arranged on the shell and is communicated with the accommodating part; wherein at least two receiving parts are arranged in the shell; and the at least two accommodating parts are mutually switchably conducted with the breathing connecting pipe.

Optionally, a blocking structure is arranged in the housing, and the blocking structure is arranged between the at least two receiving portions and the breathing connecting pipe, and is used for blocking the conduction between a selected receiving portion of the at least two receiving portions and the breathing connecting pipe and allowing the conduction between the other receiving portions and the breathing connecting pipe.

Optionally, at least two blocking structures may be detachably mounted between the at least two receiving portions and the breathing connection tube at different times, and when any one of the at least two blocking structures is detachably mounted at a corresponding position between the at least two receiving portions and the breathing connection tube, the blocking structure will block a selected receiving portion of the at least two receiving portions from being conducted with the breathing connection tube and allow the remaining receiving portions to be conducted with the breathing connection tube.

Optionally, a rotating mechanism capable of rotating around a set axis on the housing is arranged in the housing, and the rotating mechanism drives the at least two receiving portions and the blocking structure to rotate relatively, so that the relative position of the blocking structure is adjusted to enable the blocking structure to block selected receiving portions of the at least two receiving portions from being conducted with the breathing connection pipe and allow the rest receiving portions to be conducted with the breathing connection pipe.

Optionally, the at least two receiving portions form a part of the rotating mechanism and can be driven by the rotating mechanism to rotate; alternatively, the blocking structure forms a part of the rotating mechanism and can be driven by the rotating mechanism to rotate.

Optionally, when the blocking structure forms a part of the rotating mechanism and can be driven by the rotating mechanism to rotate, the breathing connecting pipe also forms a part of the rotating mechanism and can be driven by the rotating mechanism to rotate.

Optionally, the housing has a cylindrical side wall, a cylindrical cavity is formed inside the cylindrical side wall, the cylindrical cavity is divided into the at least two receiving portions, one end of the cylindrical cavity is provided with a respirator-side connecting structure, the other end of the cylindrical cavity is provided with a patient-side connecting structure, the breathing adapter is arranged on the patient-side connecting structure, and the rotating mechanism is arranged to rotate around the central axis of the cylindrical cavity.

Optionally, a longitudinal partition plate is arranged in the cylindrical cavity to divide the cylindrical cavity into the at least two receiving portions, and the at least two receiving portions are respectively used for receiving independent moisture and heat exchange materials.

Optionally, the rotating mechanism comprises a receiving frame which is installed in the cylindrical side wall in a rotatable fit manner and is used for providing the receiving part; or, the rotating mechanism comprises a rotating part which is arranged between the patient side connecting structure and the cylindrical cavity and is respectively connected with the patient side connecting structure and the cylindrical side wall in a rotatable matching manner, and the blocking structure is taken as a part of the rotating part and can be driven by the rotating part to rotate; still alternatively, the rotation mechanism includes the patient side connection structure that is in rotatable fit connection with the cylindrical sidewall.

Optionally, when the rotating mechanism includes the patient-side connecting structure connected with the cylindrical sidewall in a rotatable fit manner, the central axis of the breathing adapter deviates from the central axis of the cylindrical cavity.

Optionally, a placement portion for placing a ph value color-changing indicator is further disposed in the housing, the placement portion extends from the inside of the housing to the outside of the housing, and at least a portion of the placement portion, which is located outside the housing, is provided with a transparent wall for observing the color state of the ph value color-changing indicator inside the portion, and the ph value color-changing indicator located in the placement portion is in contact connection with at least one of the at least two storage portions, wherein the humidity and heat exchange material in the storage portions is in contact connection with the ph value color-changing indicator located in the at least two storage portions.

Optionally, at least two of the positioning portions are arranged in the shell; and the pH value color change indicating materials in the at least two placing parts are respectively in one-to-one contact connection with the damp and heat exchange materials in the at least two accommodating parts.

Optionally, the mounting portion includes a mounting tube disposed in the housing, one end of the mounting tube is connected to the receiving portion, and the other end of the mounting tube extends out of the housing in a direction away from the breathing connection tube, and a hole communicated with each of the at least two receiving portions is respectively disposed on a side wall of the mounting tube.

Optionally, the installation tube is coaxially disposed with the central axis of the cylindrical cavity, and one end of the installation tube passes through the respirator-side connecting structure and extends out of the housing.

Optionally, the accommodating pipe is also used as a driving part for driving the accommodating frame to rotate in the cylindrical side wall.

According to a second aspect of the present invention, there is provided an artificial nose comprising: a housing in which a receiving portion for receiving a moisture-heat exchange material is provided; the breathing connecting pipe is arranged on the shell and is communicated with the accommodating part; the device is characterized in that a placement part for placing the pH value color-changing indicating material is arranged in the shell, the placement part extends into the shell, at least one part of the placement part, which is positioned outside the shell, is provided with a transparent wall for observing the color state of the pH value color-changing indicating material inside the part, and the pH value color-changing indicating material in the placement part is in contact connection with the wet heat exchange material in the storage part during use.

Optionally, the arrangement portion includes an arrangement tube disposed in the housing, one end of the arrangement tube is connected to the accommodation portion, and the other end of the arrangement tube extends to the outside of the housing in a direction away from the breathing connection tube, and a hole communicated with the accommodation portion is formed in a side wall of the arrangement tube.

Optionally, the housing has a cylindrical side wall, a cylindrical cavity is formed inside the cylindrical side wall, the receiving portion is located in the cylindrical cavity, one end of the cylindrical cavity is provided with a respirator-side connecting structure, the other end of the cylindrical cavity is provided with a patient-side connecting structure, and the breathing connecting pipe is arranged on the patient-side connecting structure.

Optionally, a storage rack for providing the storage part is arranged in the cylindrical side wall; one end of the arranging pipe is connected with the containing frame.

In the artificial nose according to the first aspect, since the at least two receiving portions are provided in the housing and the at least two receiving portions are in conduction with the breathing connection tube in a switchable manner, when the moisture-heat exchange material in one of the at least two receiving portions is contaminated and clogged, the other receiving portion can be switched to be in conduction with the breathing connection tube, so that the moisture-heat exchange material in the receiving portion is continuously used for breathing, thereby prolonging the replacement cycle of the artificial nose and contributing to reducing the economic burden of the patient.

In the artificial nose according to the second aspect, a placement portion for placing a pH value color-changing indicator (such as a pH indicator paper) is disposed in the housing, the placement portion extends from the inside of the housing to the outside of the housing, and at least a portion of the placement portion located outside the housing has a transparent wall through which the color state of the pH value color-changing indicator inside the portion can be observed, when the artificial nose is used, the pH value color-changing indicator located in the placement portion is in contact with the moisture-heat exchange material located in the storage portion, so that when the airway secretion in the exhaled air is increased, the color of the pH value color-changing indicator changes due to the fact that the condensate of the exhaled air is acidic and the airway secretion is alkaline under normal conditions, and medical staff can easily observe the color change of the pH value color-changing indicator in the placement portion through the transparent wall, thereby timely and accurately identifying the potential safety hazard of the artificial nose blockage.

The embodiments of the present invention will be further described with reference to the drawings and the detailed description. Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding embodiments of the invention, and are incorporated in and constitute a part of this specification, with the understanding that the present disclosure is to be considered an exemplification of embodiments of the invention, and is not intended to limit the embodiments of the invention to that as illustrated and described herein. In the drawings:

fig. 1 is a schematic structural view of an embodiment of the artificial nose of the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of the artificial nose of the invention.

Fig. 3 is a schematic structural diagram of an embodiment of the artificial nose of the invention.

Fig. 4 is a schematic structural diagram of an embodiment of the artificial nose of the invention.

Fig. 5 is a sectional view taken along line a-a in fig. 2.

The arrows in fig. 2-4 indicate the direction of rotation.

Detailed Description

The invention will be described more fully hereinafter with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the relevant embodiments based on these descriptions. Before the embodiments of the present invention are explained in conjunction with the drawings, it should be particularly pointed out that:

in the present specification, the technical solutions and the technical features provided in the respective portions including the following description may be combined with each other without conflict.

Reference throughout the following description to only a few embodiments, rather than all embodiments, is intended to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.

The terms "comprising," "including," "having," and any variations thereof in this specification and claims and in any related parts thereof, are intended to cover non-exclusive inclusions.

Fig. 1 is a schematic structural view of an embodiment of the artificial nose of the present invention. Fig. 2 is a schematic structural diagram of an embodiment of the artificial nose of the invention. Fig. 3 is a schematic structural diagram of an embodiment of the artificial nose of the invention. Fig. 4 is a schematic structural diagram of an embodiment of the artificial nose of the invention. Fig. 5 is a sectional view taken along line a-a in fig. 2. As shown in fig. 1 to 5, the artificial nose includes a housing 1 and a breathing adapter 2, a receiving portion 11 for receiving a heat and moisture exchange material 3 is disposed in the housing 1, and the breathing adapter 2 is disposed on the housing 1 and is communicated with the receiving portion 11.

In general, the housing 1 has a cylindrical side wall 12, the interior of the cylindrical side wall 12 forms a cylindrical cavity, the receiving portion 11 is located in the cylindrical cavity, one end of the cylindrical cavity is provided with a respirator-side connection 13 and the opposite end is provided with a patient-side connection 14, and the breathing tube 2 is arranged on the patient-side connection 14. The cylindrical cavity is generally provided with a storage rack 111 which can support the damp and heat exchange material 3, and the storage rack 111 is provided with air holes 112 so as to be communicated with the breathing connecting pipe 2 for ventilation. The respirator-side connecting structure 13 is usually designed to be a structure similar to an openable cover and is detachably mounted at one end of the cylindrical cavity 13, and an air-permeable supporting frame 131 can be arranged in the respirator-side connecting structure 13, so that the respirator-side connecting structure 13 is not deformed, and meanwhile, the external air can enter and exit through the respirator-side connecting structure 13 to accommodate the heat and moisture exchange material 3. In addition, the respirator-side connection structure 13 is typically provided with an external tube 132, the external tube 132 being used for connection to a respirator for providing oxygen and humidified water to the artificial nose. Since the respirator side connection structure 13 is detachably mounted at one end of the cylindrical chamber 13, the wet heat exchange material 3 (e.g., filter paper, etc.) can be loaded into the receiving part 11 by opening the respirator side connection structure 13. The patient side connection 14 is typically configured as a reducer 141 having a tapered configuration (although it is possible to make the reducer without the tapered configuration) and is connected to the tracheostomy of the patient via the breathing adapter 2.

It should be noted that the above description is only one specific structure of the artificial nose, and that there may be many different designs or variations of the above design for the shape and structure of the housing 1, the respirator-side connecting structure 13, or the patient-side connecting structure 14, and the details are not repeated herein.

As is clear from the description in the background section of the present specification, in the case of a patient with a large amount of airway secretions, when a severe cough occurs, airway pressure increases, sputum is ejected and expectorated on the heat and moisture exchange material 3 of the artificial nose, the ventilation portion of the artificial nose is blocked, hypoxia and/or carbon dioxide retention may be caused in the patient, and the patient may be suffocated in a severe case. In contrast, the conventional method at present is to strengthen the manual inspection force so as to find potential safety hazards in time and replace the artificial nose quickly after the potential safety hazards are found. However, the operation increases the workload of medical staff; in addition, the replacement of the artificial nose is frequent, so that the economic burden of the patient is increased.

The following part of the specification focuses on providing a corresponding solution to the technical problems that the service cycle is short due to the fact that the existing artificial nose needs to be replaced after being blocked and how medical staff can identify the potential safety hazard of the artificial nose blockage more conveniently, timely and accurately.

Fig. 1 is a schematic structural view of an embodiment of the artificial nose of the present invention. As shown in fig. 1, at least two receiving portions 11 are provided in the housing 1 of the artificial nose, and the at least two receiving portions 11 are switchable with each other to be communicated with the breathing connecting tube 2. In this way, when the moist heat exchange material 3 in one of the at least two storage portions 11 is contaminated and clogged, the other storage portion 11 may be switched to be in communication with the breathing connection tube 2, so that the moist heat exchange material 3 in the storage portion 11 is continuously used for breathing, thereby prolonging the replacement cycle of the artificial nose and contributing to reducing the economic burden of the patient.

Under the above technical improvement idea, the embodiment of the artificial nose shown in fig. 1 further specifically adopts the following technical means: as shown in fig. 1, a blocking structure 15 is disposed in the housing 1, and the blocking structure 15 is disposed between the at least two receiving portions 11 and the breathing connection tube 2, and is used for blocking conduction between a selected receiving portion 11 of the at least two receiving portions 11 and the breathing connection tube and allowing conduction between the other receiving portions 11 and the breathing connection tube 2. Since the blocking structure 15 is disposed between the at least two receiving portions 11 and the breathing nozzle 2, and is used for blocking the conduction between the selected receiving portion 11 of the at least two receiving portions 11 and the breathing nozzle and allowing the conduction between the other receiving portions 11 and the breathing nozzle 2, when the relative position between the blocking structure 15 and the at least two receiving portions 11 is adjusted, the purpose of making the at least two receiving portions 11 switchably conduct with each other and the breathing nozzle 2 can be achieved; furthermore, the blocking structure 15 can also block sputum from entering the corresponding storage portion 11 to contaminate the heat and moisture exchange material 3.

More specifically, in the artificial nose embodiment shown in fig. 1, at least two blocking structures 15 may be detachably mounted between the at least two receiving portions 11 and the breathing nozzle 2 at different times, when any one blocking structure 15 of the at least two blocking structures 15 is detachably mounted at a corresponding position between the at least two receiving portions 11 and the breathing nozzle 2, the blocking structure 15 will block the conduction between the selected receiving portion 11 of the at least two receiving portions 11 and the breathing nozzle 2 and allow the conduction between the remaining receiving portions 11 and the breathing nozzle 2. In specific implementation, the blocking structure 15 may be a baffle plate which is equivalent to the number of the storage portions 11 of the at least two storage portions 11 and is detachably and adaptively mounted to the corresponding vent holes 112 of the storage rack 111, so that the corresponding vent holes 112 may be blocked by the baffle plate detachably and adaptively mounted to one vent hole 112 to expose other vent holes 112, and thus the at least two storage portions 11 selected from the storage portions 11 are blocked by the baffle plate to be conducted to the breathing pipe 2 and to allow the remaining storage portions 11 to be conducted to the breathing pipe 2.

In one possible embodiment, the baffle is made of a breakable material such as a film, and is fixed to the corresponding vent hole 112 of the receiving rack 111. When the artificial nose is used for the first time, a sharp tool is used for puncturing the baffle plates on part of the air holes 112 on the storage rack 111, so that only part of the artificial nose is conducted; after the damp and heat exchange material is polluted to cause blockage, the remaining baffle is punctured, and the artificial nose can be continuously used. In another possible embodiment, the baffle is mounted on the corresponding vent 112 on the receiving rack 111 in a manner that the baffle can only be opened irreversibly in a set form, and when the artificial nose is used for the first time, the baffle on part of the vent 112 on the receiving rack 111 is firstly opened, so that the artificial nose is only partially conducted; after the damp and heat exchange material is polluted to cause blockage, the remaining baffle is opened, and the artificial nose can be continuously used. In yet another possible embodiment, the receiving frame 111 can be taken out of the artificial nose and put back to the artificial nose, and when the artificial nose is taken out, the baffle corresponding to the vent 112 on the receiving frame 111 can be operated.

Fig. 2 is a schematic structural diagram of an embodiment of the artificial nose of the invention. Fig. 5 is a sectional view taken along line a-a in fig. 2. As shown in fig. 2 and 5, a rotating mechanism capable of rotating around a set axis on the housing 1 is arranged in the housing 1 of the artificial nose, and the rotating mechanism drives the at least two receiving portions 11 and the blocking structure 15 to rotate relatively, so that the blocking structure 15 is adjusted to make the blocking structure 15 block selected receiving portions 11 of the at least two receiving portions 11 from being conducted with the breathing tube 2 and allow the remaining receiving portions 11 to be conducted with the breathing tube 2. The blocking structure 15 is also disposed between the at least two receiving portions 11 and the breathing connection tube 2, and is used for blocking the conduction between a selected receiving portion 11 of the at least two receiving portions 11 and the breathing connection tube and allowing the conduction between the other receiving portions 11 and the breathing connection tube 2. Here, the rotating mechanism is arranged to rotate around the central axis 16 of the cylindrical cavity.

Further, the rotating mechanism specifically includes a housing shelf 111 rotatably fitted in the cylindrical side wall 12 and provided for the housing portion 11. As can be seen from fig. 5, the receiving rack 111 comprises a bottom supporting rib 1112 and a longitudinal partition 1113, wherein the bottom supporting rib 1112 is used for supporting the heat and moisture exchange material 3 (indicated by a chain line in fig. 5) received above the bottom supporting rib 1112, the longitudinal partition 1113 is used for dividing the cylindrical cavity into the at least two receiving parts 11, and the at least two receiving parts 11 are respectively used for receiving independent heat and moisture exchange materials 3. In fig. 5, the receiving frame 111 is provided with a longitudinal partition 1113 to divide the cylindrical cavity into two halves, each half having a receiving portion 11 formed therein. In addition, in order to increase the contact area of the receiving rack 111 with the cylindrical sidewall 12 to provide better guiding and positioning for the rotation of the rotating mechanism, the receiving rack 111 may further include a side plate 1111, and the side plate 1111 is engaged with the inner surface of the cylindrical sidewall 12. The entire receiving rack 111 described above may also be supported by the support ribs 142 provided in the patient-side connection structure 14, in which case the blocking structure 15 may be fixed between the support ribs 142 and the receiving rack 111. The blocking structure 15 may be a semicircular baffle plate so that when one of the receiving parts 11 is completely shielded, the other receiving part 11 can be completely opened.

It can be seen that, compared with the artificial nose shown in fig. 1, the artificial nose shown in fig. 2 can switch the receiving part 11 communicated with the breathing adapter 2 by rotating the rotating mechanism (receiving frame 111).

Fig. 3 is a schematic structural diagram of an embodiment of the artificial nose of the invention. As shown in fig. 3, a rotating mechanism capable of rotating around a set axis (here, the central axis 16 of the cylindrical cavity may still be) on the housing 1 is also arranged in the housing 1 of the artificial nose, and the rotating mechanism drives the at least two receiving portions 11 and the blocking structure 15 to rotate relatively, so that adjusting the relative position of the blocking structure 15 causes the blocking structure 15 to block selected receiving portions 11 of the at least two receiving portions 11 from being conducted with the breathing adapter 2 and allows the remaining receiving portions 11 to be conducted with the breathing adapter 2. The blocking structure 15 is also disposed between the at least two receiving portions 11 and the breathing connection tube 2, and is used for blocking the selected receiving portion 11 of the at least two receiving portions 11 from being conducted with the breathing connection tube and allowing the remaining receiving portions 11 to be conducted with the breathing connection tube 2.

However, unlike the artificial nose shown in fig. 2, in the artificial nose shown in fig. 3, the rotating mechanism includes a rotating member 151 disposed between the patient side connecting structure 14 and the cylindrical cavity and rotatably coupled with the patient side connecting structure 14 and the cylindrical side wall 12, respectively, and the blocking structure 15 is a part of the rotating member 151 and can be rotated by the rotating member 151. Meanwhile, in the artificial nose shown in fig. 3, it is not necessary to provide the longitudinal partition 1113 in the cylindrical cavity to separate the cylindrical cavity into the at least two receiving portions 11, because the rotating mechanism of the artificial nose shown in fig. 3 is actually integrated with the blocking structure 15, and when the blocking structure 15 blocks a selected receiving portion 11 of the at least two receiving portions 11, even if the cylindrical cavity does not have the longitudinal partition 1113, the cylindrical cavity can still be regarded as having at least two receiving portions 11.

The specific rotationally-fitting connection between the rotor 151 and the patient-side connection structure 14 and the cylindrical side wall 12 is conventional in the art of structural design, for example, the rotor 151 may be designed as a ring having an outer diameter greater than the outer diameter of the cylindrical side wall 12 (the blocking structure 15 is located in the ring), and the ring, the patient-side connection structure 14 and the cylindrical side wall 12 may be assembled into a coaxial assembly to ensure that the side surface of the ring protrudes from the outer surface of the cylindrical side wall 12, and at the same time, the ring, the patient-side connection structure 14 and the cylindrical side wall 12 are respectively fitted through the sliding grooves to ensure that the ring can rotate relative to the cylindrical side wall 12.

Fig. 4 is a schematic structural diagram of an embodiment of the artificial nose of the invention. As shown in fig. 4, a rotating mechanism capable of rotating around a set axis (here, the central axis 16 of the cylindrical cavity may still be) on the housing 1 is also arranged in the housing 1 of the artificial nose, and the rotating mechanism drives the at least two receiving portions 11 and the blocking structure 15 to rotate relatively, so that adjusting the relative position of the blocking structure 15 causes the blocking structure 15 to block selected receiving portions 11 of the at least two receiving portions 11 from being conducted with the breathing adapter 2 and allows the remaining receiving portions 11 to be conducted with the breathing adapter 2. The blocking structure 15 is also disposed between the at least two receiving portions 11 and the breathing connection tube 2, and is used for blocking the selected receiving portion 11 of the at least two receiving portions 11 from being conducted with the breathing connection tube and allowing the remaining receiving portions 11 to be conducted with the breathing connection tube 2.

Unlike the artificial nose of fig. 2 and 3, however, in the artificial nose of fig. 4, the rotating mechanism includes the patient-side connecting structure 14 that is rotatably coupled to the cylindrical sidewall 12 in a fitting manner. Since the patient-side connecting structure 14 is rotatable, the central axis of the breathing tube 2 can be offset from the central axis 16 of the cylindrical cavity, so that the position of the breathing tube 2 relative to the central axis 16 of the cylindrical cavity can also be changed by rotating the patient-side connecting structure 14, so that the breathing tube 2 is closer to the conductive receiving portion 11. Furthermore, in the artificial nose shown in fig. 4, the blocking structure 15 is designed as a longitudinal barrier in the patient side connection structure 14 that rotates about the central axis 16 of the cylindrical cavity with the rotation of the patient side connection structure 14.

As a modification, as shown in fig. 1 to 4, in each of the above artificial noses, a placement portion 17 for placing the ph value color-changing indicator 4 is further provided in the housing 1, the placement portion 17 extends from the inside of the housing 1 to the outside of the housing 1, and at least a portion of the placement portion 17 located outside the housing 1 has a transparent wall 171 for observing the color state of the ph value color-changing indicator inside the portion, and when in use, the ph value color-changing indicator 4 located in the placement portion 17 is in contact connection with the moisture and heat exchange material 3 located in at least one of the receiving portions 11 of the at least two receiving portions 11. Because the housing 1 is provided with the mounting part 17 for mounting the pH value color-changing indicating material (such as pH value test paper), the placing part extends from the inside of the shell to the outside of the shell, at least the part of the placing part, which is positioned outside the shell, is provided with a transparent wall for observing the color state of the pH value color change indicating material inside the part, and when the device is used, the pH value color change indicating material positioned in the placing part is in contact connection with the damp and heat exchange material positioned in the accommodating part, so that, because the condensate of the exhaled air is acidic and the airway secretion is alkaline under normal conditions, when the airway secretion contained in the exhaled air is increased, the color of the pH value color-changing indicating material is changed, and medical staff can easily observe the color change of the pH value color-changing indicating material in the placement part from the transparent wall, so that the potential safety hazard of the artificial nose blockage can be timely and accurately identified.

Specifically, the mounting portion 17 includes a mounting tube 172 disposed in the housing 1, one end of the mounting tube 172 is connected to the receiving portion 11, and the other end extends to the outside of the housing 1 in a direction away from the breathing connection tube 2, and holes communicating with the receiving portions 11 of the at least two receiving portions 11 are respectively disposed on the side walls of the mounting tube 172, where the holes are used for enabling the ph value color-changing indicator 4 to contact and connect with the damp-heat exchanger 3. Furthermore, the mounting tube 172 is arranged coaxially with the central axis 16 of the cylindrical cavity, and one end of the mounting tube 17 extends through the respirator-side connection 13 to the outside of the housing 1. The other end of the setting pipe 17 is directly mounted on the receiving frame 111. The mounting tube 172 may also serve as a driving member (as shown in fig. 2) for driving the receiving rack 111 to rotate in the cylindrical sidewall 12.

The description has been given of the embodiments of the present invention. Those of ordinary skill in the art will be able to implement the embodiments of the present invention based on these descriptions. Based on the above description provided herein, all other embodiments that may be derived by one of ordinary skill in the art without making any creative effort shall fall within the protection scope of the present invention.

Claims

1. An artificial nose comprising:

a housing in which a receiving portion for receiving a moisture-heat exchange material is provided;

the breathing connecting pipe is arranged on the shell and is communicated with the accommodating part;

the method is characterized in that:

at least two containing parts are arranged in the shell; and is

The at least two receiving parts are mutually switchable to be communicated with the breathing connecting pipe.

2. The artificial nose of claim 1, wherein: the breathing device is characterized in that a blocking structure is arranged in the shell, the blocking structure is arranged between the at least two containing parts and the breathing connecting pipe and used for blocking the selected containing part in the at least two containing parts from being communicated with the breathing connecting pipe and allowing the rest containing parts to be communicated with the breathing connecting pipe.

3. The artificial nose of claim 2, wherein: the at least two receiving parts and the breathing connecting pipe can be detachably mounted with the at least two blocking structures at different time, when any one of the at least two blocking structures is detachably mounted at a corresponding position between the at least two receiving parts and the breathing connecting pipe, the blocking structure can block the conduction of the selected receiving part of the at least two receiving parts and the breathing connecting pipe and allow the conduction of the rest receiving parts and the breathing connecting pipe.

4. The artificial nose of claim 2, wherein: the shell is internally provided with a rotating mechanism which can rotate around a set axis on the shell, the rotating mechanism drives the at least two containing parts and the blocking structure to relatively rotate, so that the relative position of the blocking structure is adjusted to enable the blocking structure to block the selected containing part in the at least two containing parts from being communicated with the breathing connecting pipe and allow the rest containing parts to be communicated with the breathing connecting pipe.

5. The artificial nose of claim 4, wherein: the at least two accommodating parts form a part of the rotating mechanism and can be driven by the rotating mechanism to rotate; alternatively, the blocking structure forms a part of the rotating mechanism and can be driven by the rotating mechanism to rotate.

6. The artificial nose of claim 5, wherein: when the blocking structure forms a part of the rotating mechanism and can be driven by the rotating mechanism to rotate, the breathing connecting pipe also forms a part of the rotating mechanism and can be driven by the rotating mechanism to rotate.

7. The artificial nose of claim 4, wherein: the shell is provided with a cylindrical side wall, a cylindrical cavity is formed inside the cylindrical side wall, the cylindrical cavity is divided into the at least two accommodating parts, one end of the cylindrical cavity is provided with a respirator side connecting structure, the other end of the cylindrical cavity, which is opposite to the respirator side connecting structure, is provided with a patient side connecting structure, the breathing connecting pipe is arranged on the patient side connecting structure, and the rotating mechanism is arranged to rotate around the central axis of the cylindrical cavity.

8. The artificial nose of claim 7, wherein: the cylindrical cavity is internally provided with a longitudinal partition plate to divide the cylindrical cavity into at least two containing parts, and the at least two containing parts are respectively used for containing independent damp and heat exchange materials.

9. The artificial nose of claim 7, wherein: the rotating mechanism comprises a receiving frame which is installed in the cylindrical side wall in a rotatable fit mode and is used for providing the receiving portion; or, the rotating mechanism comprises a rotating part which is arranged between the patient side connecting structure and the cylindrical cavity and is respectively connected with the patient side connecting structure and the cylindrical side wall in a rotatable matching manner, and the blocking structure is taken as a part of the rotating part and can be driven by the rotating part to rotate; still alternatively, the rotation mechanism includes the patient side connection structure that is in rotatable fit connection with the cylindrical sidewall.

10. The artificial nose of claim 7, wherein: when the rotating mechanism comprises the patient side connecting structure which is connected with the cylindrical side wall in a rotatable matching mode, the central axis of the breathing connecting pipe deviates from the central axis of the cylindrical cavity.

11. The artificial nose according to any one of claims 1-10, wherein: still be equipped with in the casing and be used for settling pH valve indicating material that discolours a position portion, the position portion follow extend to in the casing outside the casing and this position portion go up and be located at least the part outside the casing has the transparent wall that can supply to observe the inside pH valve indicating material colour state that discolours of this part, is located during the use pH valve indicating material that discolours a position in the position portion with be located two at least one in the storage part the wet heat exchange material contact connection in the storage part.

12. The artificial nose of claim 11, wherein: at least two placing parts are arranged in the shell; and the pH value color change indicating materials in the at least two placing parts are respectively in one-to-one contact connection with the damp and heat exchange materials in the at least two accommodating parts.

13. The artificial nose of claim 11, wherein: the mounting portion comprises a mounting pipe arranged in the shell, one end of the mounting pipe is connected with the containing portion, the other end of the mounting pipe extends out of the shell in the direction away from the breathing connecting pipe, and holes communicated with the containing portions in the at least two containing portions are formed in the side wall of the mounting pipe respectively.

14. The artificial nose of claim 13, wherein: the mounting pipe is coaxially arranged with the central axis of the cylindrical cavity, and one end of the mounting pipe penetrates through the respirator side connecting structure and extends out of the shell.

15. The artificial nose of claim 14, wherein: the arrangement pipe is also used as a driving part for driving the storage frame to rotate in the cylindrical side wall.