CN210121283U - Tracheal cannula respiratory filter with alginate filter layer and with flow sensing alarm function - Google Patents

Abstract

The utility model relates to the field of medical equipment, concretely relates to tracheal cannula who contains alginate filter layer of taking flow response to report to police breathes filter. The breathing filter comprises a shell, a filter element and a flow sensor, wherein the shell is provided with a first opening and a second opening, and sealing parts are respectively arranged at the first opening and the second opening; the filter element comprises a non-woven fabric filter screen layer, an activated carbon layer, a nano filter layer and an alginate filter layer from inside to outside in sequence, and the filter element is arranged in the shell; the flow sensor is disposed within the housing. The breathing filter provided by the application is used for filtering air, bacteria and harmful substances can be well filtered, the temperature and the humidity can be intelligently adjusted, the sputum blockage degree can be sensed, and intelligent alarm can be realized.

Description

Tracheal cannula respiratory filter with alginate filter layer and with flow sensing alarm function

Technical Field

The utility model relates to the field of medical equipment, a respiratory filter is related to, concretely relates to take tracheal cannula respiratory filter who contains alginate filter layer of flow response warning.

Background

Patients with respiratory diseases, such as laryngectomy patients, are subjected to tracheotomy, the patients are sleeved for a long time after tracheotomy, the air passage is open, air directly enters the lower respiratory tract without nasal cavity, heating, humidifying and filtering are performed, the air passage is dry, and the permanent planting of bacteria and further the infection of the lower respiratory tract are easy to occur. At present, most patients have an airway directly communicated with the outside after the metal sleeve is placed in the patient, and no related protection device exists. The current artificial nose product can not be connected with metal sleeve is fine to only simple machinery blocks the filtering action, can not satisfy patient's demand, and easily takes place to block when the more patient of sputum and influence breathing.

Thus, there is a need for further improvements in respiratory devices suitable for use with tracheal cannula patients.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the present invention is to provide a tracheal cannula respiratory filter with an alginate filter layer and a flow sensing alarm. Through the utility model provides a respiratory filter filters, and bacterium and harmful substance are filtered that can be fine can the intelligent regulation humiture to can respond to sputum jam degree, intelligence is reported to the police. The respiratory filter is connected with the tracheotomy tube and can be used for filtering the breath of a patient with the tracheotomy tube.

Particularly, the utility model provides a following technical scheme:

the utility model provides a respiratory filter, respiratory filter includes: the filter comprises a shell, a filter element and a flow sensor; the shell is provided with a first opening and a second opening, and sealing parts are respectively arranged at the first opening and the second opening; the filter element comprises a non-woven fabric filter screen layer, an activated carbon layer, a nano filter layer and an alginate filter layer from outside to inside in sequence, and the filter element is arranged in the shell; the flow sensor is disposed within the housing.

The utility model provides a be provided with the casing among the respiratory filter, contain filter core and flow inductor in the casing. The first opening and the second opening on the shell can be externally connected with a sleeve, so that gas can enter and be output through the breathing filter. When the respiratory disorder patient has sputum to block in the trachea, the flow of the gas passing through the respiratory filter can be changed, so that the change of the gas flow in the shell can be sensed through a flow sensor arranged in the respiratory filter shell, and the alarm is started. The filter element comprises a non-woven fabric filter screen layer, an activated carbon layer, a nano filter layer and an alginate filter layer from outside to inside in sequence. The air sucked through the breathing filter passes through the non-woven fabric filter screen layer, the activated carbon layer, the nano filter layer and the alginate filter layer in sequence, wherein large particles and dust in the air can be filtered when the air passes through the non-woven fabric filter screen layer; when passing through the activated carbon layer, small particles and harmful gas pollen in the air can be filtered and removed; the nano filter layer can filter small particles in the air, and the alginate filter layer at the innermost layer has a unique net structure, so that the functions of heat preservation, moisture preservation and antibiosis can be realized. The utility model provides a respiratory filter has the heat preservation simultaneously and moisturizes, filters and antibiotic function, is applied to the crowd who puts tracheal cannula with this filter core, can give the biggest protection of using crowd, improves comfort level and the quality of life who uses crowd.

According to the embodiment of the present invention, the breathing filter described above may further include the following technical features:

the utility model discloses an in some embodiments, the flow inductor has first intelligent alarm, first intelligent alarm is provided with the flow threshold value, works as gas flow is less than in the casing during the flow threshold value, first intelligent alarm reports to the police.

In some embodiments of the invention, the flow threshold is 30% of the value of the gas flow in the housing during quiet breathing. In determining the flow threshold, the tracheostomy tube patient may be fitted with the respiratory filter and then allowed to breathe smoothly, and the flow sensor will automatically record the initial tidal volume, i.e., record the flow value, and then determine 30% of the flow value as the flow threshold. If the air flow in the shell of the breathing filter is lower than the flow threshold value in the wearing process, an alarm is displayed. For example, when sputum is contained in the airway, the flow of gas filtered by the breathing filter can be reduced, the flow threshold of the first intelligent alarm provided with the flow sensor is 30% of the gas flow value in the shell when the patient breathes quietly, the first intelligent alarm gives an alarm to prompt that sputum exists in the airway of the patient with respiratory disorder, and the sputum needs to be processed so as not to cause blockage and influence breathing.

In some embodiments of the invention, the respiratory filter further comprises a gas diffusion resistance receptor disposed within the housing. Still include gaseous diffusion resistance receptor among this respiratory filter, utilize this gaseous diffusion resistance receptor to experience the resistance of the gas diffusion in the casing to regulation and control can realize reporting to the police through the control to gaseous diffusion resistance, thereby suggestion or early warning whether need change filter core etc..

The utility model discloses an in some embodiments, the gas diffusion resistance receptor has second intelligent alarm, second intelligent alarm is provided with initial resistance, works as the gas diffusion resistance surpasses in the casing when 50% of initial resistance, second intelligent alarm reports to the police. With the use of filter cartridges in respiratory filters, the use of alginate or other filter layers in the filter cartridges may become clogged, worn or abnormal, thereby causing the diffusion resistance of air through the respiratory filter to change. The second intelligence alarm is provided with the initial resistance, works as gaseous diffusion resistance surpasses in the casing when 50% of initial resistance, the warning of second intelligence alarm, the gaseous breathing filter of suggestion is unusual to can further realize filtering element filtering capability's control to breathing.

In some embodiments of the present invention, the respiratory filter further comprises a temperature controller, the temperature controller is disposed in the housing, the temperature controller is adapted to maintain the temperature of the filter element at 25-28 degrees celsius. The breathing filter is added with a temperature controller, and the temperature of the filter element can be controlled to be 25-28 ℃ by the temperature controller, so that the air sucked by the breathing filter is maintained at a relatively constant temperature.

In some embodiments of the invention, the alginate filter layer is removably disposed on an inner layer of the nanofiltration layer. The alginate filter layer is detachably arranged on the inner layer of the nano filter layer, so that the alginate filter layer can be replaced regularly, for example, the alginate filter layer can be replaced every 24 hours, and the sterilization and moisturizing effects of the alginate material can be better exerted.

In some embodiments of the invention, the filter element is removably disposed within the housing. The filter element can be disassembled, thereby being convenient for replacing the filter element.

In some embodiments of the present invention, the sealing member is a sealing ring, and the sealing ring is disposed at the outer port of the first opening and the second opening. The sealing ring is arranged at the opening of one end of the first opening and the second opening, which is far away from the filter element, and is used for connecting the breathing filter with other external equipment, such as a tracheotomy sleeve, so that a good sealing effect can be achieved.

In some embodiments of the present invention, the sealing member is a silica gel layer, and the silica gel layer is disposed on the inner wall of the first opening and the second opening. Set up the silica gel layer on the inner wall of first opening and second opening for respiratory filter and other external equipment, for example tracheotomy sheathed tube connect, can play good sealed effect.

In some embodiments of the present invention, the housing is made of ABS material. The housing of the respiratory filter is made of acrylonitrile-butadiene-styrene copolymer resin, is light and has certain falling resistance, and the self weight of the housing does not burden respiratory disorder patients.

The utility model discloses the beneficial effect who gains does: the utility model provides a respiratory filter can be used for putting tracheal cannula patient's breathing problem. For example, the respiratory filter can be used by a laryngectomy patient, so that the respiratory protection problem of the patient needing to be sleeved for a long time after tracheotomy can be solved, and the discomfort caused by the fact that gas directly enters an airway without being filtered by a nasal cavity can be compensated by using the filter. The trachea cannula breathing filter with the functions of heating, humidifying, filtering and resisting bacteria has the function of integrating filtering, resisting bacteria and pressure sensing, gives the maximum protection to a patient, and improves the comfort level and the life quality of the patient.

Drawings

Fig. 1 is a front view of a structure of a respiratory filter according to an embodiment of the present invention.

Fig. 2 is a top view of a structure of a respiratory filter according to an embodiment of the present invention.

In fig. 1 and 2, reference numeral 10 is a filter element, reference numeral 20 is a flow sensor, reference numeral 30 is a gas diffusion resistance receptor, reference numeral 40 is a temperature controller, reference numeral 50 is a housing, reference numeral 501 is a first opening, and reference numeral 502 is a second opening.

Fig. 3 is a schematic structural diagram of a filter element in a respiratory filter according to an embodiment of the present invention, in which reference numeral 101 is a non-woven fabric filter screen layer, reference numeral 102 is an activated carbon layer, reference numeral 103 is a nano filter layer, and reference numeral 104 is an alginate filter layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In order to solve the problems of dryness, cold air stimulation and easy occurrence of lung infection caused by the direct exposure of the air passage of a patient with a cannula to the outside air, the utility model provides a respiratory filter, the first and second interfaces on the respiratory filter may be sized to mate with the cannula, so that the respiratory filter can be applied to a tracheotomy cannula by connecting the cannula to the first and second openings in the respiratory filter housing, so that the air filtered by the breathing filter has the effect of filtering through the nasal cavity and has proper temperature and humidity, can filter harmful substances such as bacteria and pollution particles, can intelligently sense the blockage, pressure and resistance of sputum, greatly improves the comfort and the living quality of patients, and the generation of aerosol can be reduced, and the pollution to the surrounding environment and the spread of pathogenic bacteria are reduced.

In at least some embodiments, the present invention provides a respiratory filter, as shown in fig. 1 and 2, wherein fig. 1 is a front view of the respiratory filter, fig. 2 is a top view of the respiratory filter, the respiratory filter comprises a housing 50, a filter element 10, a flow sensor 20, a gas diffusion resistance sensor 30, a temperature controller 40, and a first opening 501 and a second opening 502 on the housing 50, wherein in fig. 2, only the first opening 501 is shown because the first opening 501 and the second opening 502 overlap, and the first opening 501 and the second opening are respectively provided with a sealing member, so that when the first opening and the second opening are connected with a tracheotomy tube, a sealing effect can be achieved. In at least some embodiments, the seal is a silicone layer, and the silicone layer is disposed on an inner wall of the first opening and the second opening. The inner walls of the first opening and the second opening are provided with the silica gel layer, and the silica gel layer can facilitate connection of the opening and other parts such as a tracheotomy cannula, so that risks of air leakage and the like are reduced. In at least some embodiments, the seal is a gasket, and the gasket is disposed at the outer ports of the first and second openings. By "external port" is meant a port remote from the filter element of the respiratory filter, i.e. a port for connection of the respiratory filter to other units or devices, such as a tracheostomy cannula or the like. A ring of sealing rings is arranged at the outer port, so that the first opening and the second opening can be sealed and airtight when being connected with other equipment. The filter element 10, the flow sensor 20, the gas diffusion resistance sensor 30 and the temperature controller 40 are all disposed in the housing 50.

As shown in fig. 3, the filter element 10 includes a nonwoven fabric filter mesh layer 101, an activated carbon layer 102, a nanofiltration layer 103, and an alginate filter layer 104 in this order from the outside to the inside. When describing from outside to inside, the air enters from outside to inside according to the air entering direction, and the structures of all the layers in the filter element are correspondingly described as from outside to inside or from outside to inside, namely the air passes through the non-woven fabric filter screen layer, the activated carbon layer, the nano filter layer and the alginate filter layer for filtration when passing through the breathing filter. The non-woven fabric filter screen layer in the filter element can filter large particles and dust; the active carbon layer can filter small particles and harmful gas pollen, the nano filter layer can filter small particles, and the alginate filter layer can preserve heat, preserve moisture and resist bacteria. The activated carbon layer can be filled with activated carbon for conventional filtration, for example, the activated carbon material of an activated carbon mask can be used for filling. The nano filter layer can adopt a PTFE nano film, and the diameter of the film fiber can be set between 100-200 nanometers. The alginate filter layer can be filled with alginate materials which have special net structures, can filter and sterilize and can absorb certain moisture, thereby simultaneously realizing the effects of antibiosis and moisture preservation.

In at least some embodiments, the temperature controller in the breather filter can be adapted to maintain the temperature of the filter element at 25-28 degrees celsius.

In at least some embodiments, the flow sensor 20 has a first intelligent alarm therein that is set to a flow threshold and that alarms when the gas flow within the housing exceeds the flow threshold.

In at least some embodiments, the gas diffusion resistance sensor 30 has a second intelligent alarm that is set with an initial resistance, the second intelligent alarm alarming when the gas diffusion resistance within the housing exceeds 50% of the initial resistance.

In at least some embodiments, the housing 50 is made of ABS (acrylonitrile butadiene styrene). The material is very light and not easy to crush, and the dead weight generated by the shell made of the material can not cause burden to a user.

In at least some embodiments, the breathing filter further comprises silica gel cotton or a silica gel pad, and a circle of silica gel cotton or the silica gel pad is arranged on the inner wall of the shell, so that the breathing filter can be protected and buffered. In at least some embodiments, the present invention provides a respiratory filter further comprising a strap, wherein the strap interface is symmetrically disposed on both sides of the housing. The respiratory filter can be fixed on the head or the neck of a user through the tying belt, and the use is more convenient.

The utility model provides a respiratory filter has the humidification of heating, filters and antibiotic function, is applied to it and puts tracheal cannula patient, can give the biggest protection of use crowd, improves use crowd's comfort level and quality of life.

In the description of the present invention, it is to be understood that the terms "inner" and "outer" are used merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A respiratory filter, comprising:

the sealing device comprises a shell, a first sealing ring and a second sealing ring, wherein the shell is provided with a first opening and a second opening, and sealing parts are respectively arranged at the first opening and the second opening;

the filter element comprises a non-woven fabric filter screen layer, an activated carbon layer, a nano filter layer and an alginate filter layer from outside to inside in sequence, and the filter element is arranged in the shell;

a flow sensor disposed within the housing.

2. The respiratory filter of claim 1, wherein the flow sensor has a first intelligent alarm that is set with a flow threshold that alarms when gas flow within the housing is below the flow threshold.

3. The respiratory filter of claim 2, wherein the flow threshold is 30% of the value of the flow of gas in the housing during quiet breathing.

4. The respiratory filter of claim 1, further comprising:

a gas diffusion resistance susceptor disposed within the housing.

5. The respiratory filter of claim 4, wherein the gas diffusion resistance receptor has a second intelligent alarm, the second intelligent alarm being provided with an initial resistance, the second intelligent alarm alarming when the gas diffusion resistance within the housing exceeds 50% of the initial resistance.

6. The respiratory filter of claim 1, further comprising:

the temperature controller, the temperature controller sets up in the casing, the temperature controller is suitable for to maintain the temperature of filter core is 25-28 degrees centigrade.

7. The respiratory filter of claim 1, wherein the alginate filter layer is removably disposed within an inner layer of the nanofiltration layer.

8. The respiratory filter of claim 1, wherein the filter cartridge is removably disposed within the housing.

9. The respiratory filter of claim 1, wherein the seal is a gasket, and the gasket is disposed at an outer port of the first and second openings.

10. The respiratory filter of claim 1, wherein the seal is a silicone layer and the silicone layer is disposed on an inner wall of the first opening and the second opening.

Images