A sputum suction training model

Abstract

The application provides a sputum suction training model, which comprises an airway model, a sputum storage barrel, a sputum suction tube, a sputum conveying device and a sputum suction device; the sputum conveying device comprises a sputum conveying tube connected with the sputum storage barrel and a plurality of sputum output heads arranged in the airway model and connected with the sputum conveying tube; a negative pressure pump is arranged at the sputum output head and used for sucking out the simulated sputum in the sputum storage barrel to the airway model; the outlet of the sputum suction tube is connected with the inlet of the sputum storage barrel; the sputum suction device generates negative pressure, the simulated sputum in the airway model is sucked out through the sputum suction tube and discharged into the sputum storage barrel. The simulated sputum in the sputum storage barrel is sucked out by the negative pressure pump and discharged into the sputum output head to simulate sputum secretion; the sputum suction training through the oral pharynx into the airway is realized; the simulated sputum sucked out by the sputum suction tube is recycled into the sputum storage barrel, so that the waste of the simulated sputum is reduced; and the corresponding negative pressure pump works when sputum suction training is needed at a position of the airway, so that precise training is realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical auxiliary, and particularly relates to a sputum suction training model. BACKGROUND

[0002] Sputum suction is one of important nursing measures to keep respiratory tract unobstructed and effectively remove respiratory tract secretions, but improper sputum suction can cause complications such as hypoxia, arrhythmia, lung infection, etc., so it is necessary for medical staff to correctly master sputum suction operation and improve operation proficiency, such as through sputum suction training model for sputum suction training.

[0003] CN201610230194.3 discloses a novel sputum suction training model, which can simulate sputum outflow and prompt sputum suction overpressure and over time, so as to facilitate trainees to master sputum suction skills. The above-mentioned disclosed patent does not recycle the simulated sputum sucked by the sputum suction tube, and there is a situation of simulated sputum waste, and the unrecycled simulated sputum is not properly treated, which can pollute the operation site, and the viscous simulated sputum is not easy to clean; in addition, the sputum concentration at different positions of the airway is the same, and in actual conditions, the sputum concentration at different positions of the airway is different, so only the sputum with the same concentration can be used, and the sputum condition cannot be better simulated. SUMMARY

[0004] The present application aims to solve the technical problems existing in the prior art, and the purpose of the present application is to provide a sputum suction training model.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a sputum suction training model, comprising an airway model, a sputum storage barrel, a sputum suction tube, a sputum liquid conveying device for conveying the simulated sputum in the sputum storage barrel to the airway model, and a sputum suction device for sucking the simulated sputum in the airway model out to the sputum storage barrel through the sputum suction tube; the airway model comprises a trachea model, an oral cavity model connected to the upper end of the trachea model, and a bronchus model connected to the lower end of the trachea model; the sputum liquid conveying device comprises a sputum conveying tube connected to the outlet of the sputum storage barrel and a plurality of sputum output heads connected to the outlet of the sputum conveying tube in parallel, and the sputum output heads are arranged in the trachea model, the oral cavity model and the bronchus model; a negative pressure pump is arranged at the sputum output head for sucking the simulated sputum in the sputum storage barrel out and secreting it to the airway model through the sputum output head; an induction assembly is arranged in the sputum output head, which can monitor the sputum suction pressure and sputum suction time when the sputum suction tube sucks sputum; the outlet of the sputum suction tube is connected to the inlet of the sputum storage barrel, the sputum suction tube is inserted into the airway model, the sputum suction device generates negative pressure, and the simulated sputum in the airway model is sucked out through the sputum suction tube and discharged to the sputum storage barrel.

[0006] The above technical scheme has the following advantages: the negative pressure pump draws out the simulated sputum in the sputum storage barrel to the sputum output head to simulate sputum secretion, the sputum suction tube is inserted into the airway model through the oral cavity model to suck sputum, the sputum suction tube can be used to train sputum suction through the oral pharynx into the airway, the simulated sputum sucked by the sputum suction tube is collected in the sputum storage barrel, and the waste of the simulated sputum is reduced. A negative pressure pump that can work independently is arranged at each sputum position of the airway model, and when sputum suction training is needed at a position of the airway, the corresponding negative pressure pump works to achieve the purpose of precise training.

[0007] In a preferred embodiment of the present application, the airway model further comprises a nasal cavity model connected to the upper end of the trachea model, and the nasal cavity model is also provided with a sputum output head, a negative pressure pump and a sensing assembly.

[0008] The above technical scheme has the following advantages: the nasal cavity model is arranged, and the airway system through the nasal pharynx can be trained, and the practicability is improved.

[0009] In a preferred embodiment of the present application, the signal output end of the sensing assembly is connected to the input end of the controller, and the alarm control end of the controller is connected to the alarm.

[0010] The above technical scheme has the following advantages: when the sputum suction time of the trainee is too long, or the sputum suction action is not gentle or the sputum suction pressure is too large, the alarm reminds the trainee, so that the trainee can master the sputum suction time and the sputum suction force.

[0011] In a preferred embodiment of the present application, a flushing liquid storage barrel connected to the outlet of the sputum suction tube is further arranged, the flushing liquid storage barrel is arranged in parallel with the sputum storage barrel, and the sputum suction device generates negative pressure to suck out the flushing liquid in the airway model through the sputum suction tube and discharge the flushing liquid to the flushing liquid storage barrel.

[0012] The above technical scheme has the following advantages: the flushing liquid storage barrel is arranged, and the flushing liquid can be used to flush the airway after sputum suction, so that the nursing work after the training system is trained.

[0013] In a preferred embodiment of the present application, the outlet of the sputum suction tube is connected to the parallelly arranged sputum suction branch pipe and liquid suction branch pipe, the outlets of the sputum suction branch pipe and the liquid suction branch pipe are connected to the sputum storage barrel and the flushing liquid storage barrel respectively, and the sputum suction branch pipe and the liquid suction branch pipe are respectively provided with a sputum suction valve and a liquid suction valve.

[0014] The above technical scheme has the following advantages: the sputum suction branch pipe and the liquid suction branch pipe are respectively connected to the sputum storage barrel and the flushing liquid storage barrel, and the flow directions of the sputum and the flushing liquid can be controlled by opening and closing the sputum suction valve and the liquid suction valve, so that the operation is convenient.

[0015] In another preferred embodiment of the present application, the bottom of the flushing liquid storage barrel is provided with a sewage valve for discharging the flushing liquid in the flushing liquid storage barrel.

[0016] The technical scheme above, by setting the pollution valve, can control the discharge of the flushing liquid, and facilitate the discharge of the flushing liquid in the flushing liquid storage barrel.

[0017] In another preferred embodiment of the present application, a sputum suction outer barrel is further included, the sputum liquid storage barrel and the flushing liquid storage barrel are two inner barrels arranged side by side and installed in the sputum suction outer barrel, the top of the sputum liquid storage barrel and the flushing liquid storage barrel is communicated, and the top of the sputum suction outer barrel is provided with a negative pressure interface, and the sputum suction device is connected with the negative pressure interface through a negative pressure pipe.

[0018] The technical scheme above, by setting the sputum suction outer barrel, the sputum liquid storage barrel and the flushing liquid storage barrel are installed in the sputum suction outer barrel, so that the sputum suction device generates negative pressure on the sputum suction outer barrel, and the opening and closing of the sputum suction valve and the liquid suction valve can make the simulated sputum sucked by the sputum suction pipe enter the sputum liquid storage barrel, and the flushing liquid sucked enter the flushing liquid storage barrel, so that one sputum suction device can realize sputum suction and flushing liquid suction, and the cost is reduced.

[0019] In another preferred embodiment of the present application, the concentration of the simulated sputum at each position of the airway model can be adjusted respectively, and a heating device is arranged in or outside each sputum output head, and the heating device is used for heating the simulated sputum secreted by the sputum output head to increase the concentration of the simulated sputum by evaporation.

[0020] The technical scheme above, the heating device heats to evaporate water in the simulated sputum, so as to adjust the concentration of the simulated sputum, so that the simulated sputum with the same or different concentrations can be arranged at different positions of the airway model, and different training requirements can be met.

[0021] In another preferred embodiment of the present application, a plurality of independently-operable air bags are arranged in the inner wall of the airway model at intervals, each air bag is connected with a gas charging and discharging device through a gas charging and discharging pipe, and the air bag can be inflated and protrude into the airway model by charging air into the air bag.

[0022] The technical scheme above, by setting the air bag, the air bag is inflated to simulate the protruding object in the airway, simulate the blockage of the airway, so that the training model can also be used for sputum suction training with the protruding object in the airway.

[0023] In another preferred embodiment of the present application, a training instruction device is further included, the training instruction device determines the sputum suction pressure and the sputum suction time according to the concentration of the sputum and the patency of the airway and gives a prompt.

[0024] The sputum suction pressure determination method comprises the following steps:

[0025] ;

[0026] Wherein, is the sputum suction pressure, The basic sputum suction pressure is 60-80 mmHg for children, The sputum concentration, The influence coefficient of sputum concentration on sputum suction pressure, The airway obstruction rate, The influence coefficient of airway obstruction on sputum suction pressure;

[0027] The sputum suction time determination method:

[0028] ;

[0029] Wherein, The sputum suction time, The basic sputum suction time, The influence coefficient of sputum concentration on sputum suction time, The influence coefficient of airway obstruction on sputum suction time.

[0030] The above technical scheme, the training indicating device determines the sputum suction pressure and the sputum suction time according to the concentration of sputum and the patency of airway and issues a prompt, and the trainee trains under different sputum concentrations and different airway patencies, so that the trainee can master the sputum suction time and the sputum suction pressure under different sputum concentrations and different airway patencies, and the sputum suction training is more comprehensive.

[0031] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0032] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0033] Figure 1 It is a structure schematic view of a sputum suction training model of example one.

[0034] Figure 2 It is a structure schematic view of another sputum suction training model of example one.

[0035] Figure 3 It is a structure schematic view of a sputum suction training model of example two.

[0036] Figure 4 It is a structure schematic view of a sputum suction training model of example three.

[0037] The reference signs in the drawings of the specification include: airway model 10, trachea model 11, oral cavity model 12, bronchus model 13, nasal cavity model 14, liquid receiving tray 15, sputum suction outer barrel 20, negative pressure interface 20a, sputum storage barrel 21, sputum suction branch pipe 211, sputum suction valve 212, flushing liquid storage barrel 22, liquid suction branch pipe 221, liquid suction valve 222, sewage valve 223, sputum suction pipe 30, sputum conveying pipe 41, sputum output head 42, negative pressure pump 43, sputum suction device 50, negative pressure pipe 51, sensing assembly 60, heating device (electrical heating sheet) 70, air bag 80. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0039] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0040] In the description of the present application, unless otherwise specified and limited, it should be noted that the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a mechanical connection or an electrical connection, it can be a communication between two elements, it can be directly connected, or indirectly connected through an intermediate medium, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0041] Embodiment one

[0042] The present embodiment provides a sputum suction training model, as shown in Figure 1 In a preferred embodiment, the training model includes an airway model 10, a sputum storage barrel 21, a sputum suction pipe 30, a sputum conveying device for conveying simulated sputum in the sputum storage barrel 21 (the simulated sputum can be made in the present manner, having the appearance and texture of sputum) to the airway model 10, and a sputum suction device 50 for sucking out the simulated sputum in the airway model 10 to the sputum storage barrel 21 through the sputum suction pipe 30, the sputum suction device 50 being a negative pressure device for sucking sputum in the prior art.

[0043] The airway model 10 comprises a trachea model 11, an oral cavity model 12 connected to the upper end of the trachea model 11, and two bronchus models 13 connected to the lower end of the trachea model 11, and the two bronchus models 13 branch from the lower end of the trachea model 11; preferably, the airway model 10 further comprises a nasal cavity model 14 connected to the upper end of the trachea model 11, and the nasal cavity model 14 branches from the upper end of the trachea model 11 together with the oral cavity model 12 to simulate the oropharynx and nasopharynx of a human being. Preferably, the airway model 10 is made of a transparent material, so that the simulated sputum in the airway model 10 and the sputum suction process can be seen by the trainee and the teaching teacher, facilitating teaching and training.

[0044] The sputum suction device comprises a sputum suction pipe 41 connected to the outlet of the sputum storage barrel 21 and a plurality of sputum output heads 42 connected in parallel at the outlet of the sputum suction pipe 41, for example, the sputum suction pipe 41 is inserted into the sputum storage barrel 21 from the top of the sputum storage barrel 21, and the sputum output heads 42 are arranged in the trachea model 11, the oral cavity model 12, the nasal cavity model 14, and the bronchus model 13, and the sputum output heads 42 are embedded in the side wall of the airway model 10 and the surface of the sputum output heads 42 is flush with the surface of the inner wall of the airway model 10, and a plurality of sputum output heads 42 can be arranged along the length direction of the trachea model 11 due to the long length of the trachea model 11. A negative pressure pump 43 for sucking the simulated sputum in the sputum storage barrel 21 out and secreting the simulated sputum into the airway model 10 through the sputum output head 42 is arranged at each sputum output head 42, and the negative pressure pump 43 can be arranged inside or outside the airway model 10, close to the sputum output head 42 and upstream of the sputum output head 42; preferably, the surface of the sputum output head 42 is provided with a plurality of sputum secretion sieve holes to make the simulated sputum secreted more uniformly. The sputum output head 42 is provided with a sensing assembly 60, and the sensing assembly 60 can monitor the sputum suction pressure and the sputum suction time when the sputum suction pipe 30 sucks sputum, and the monitoring of the sputum suction pressure and the sputum suction time by the sensing assembly 60 is prior art, for example, disclosed in CN201610230194.3.

[0045] When the training model of the present application is used for pharyngeal (including nasopharyngeal and oropharyngeal) sputum suction training, the negative pressure pump 43 of the target sputum suction position is started first, the negative pressure pump 43 sucks the simulated sputum in the sputum storage barrel 21 out through the sputum suction pipe 41 and secretes and outputs the simulated sputum into the airway model 10 through the sputum output head 42. The outlet of the sputum suction pipe 30 is connected to the inlet of the sputum storage barrel 21, and the sputum suction pipe 30 is inserted into the airway model 10 through the inlet of the oral cavity model 12 or the inlet of the nasal cavity model 14, and the inlet of the sputum suction pipe 30 is close to the simulated sputum of the target sputum suction position, and the sputum suction device 50 works to generate negative pressure, and under the action of the negative pressure, the simulated sputum of the target sputum suction position is sucked out through the sputum suction pipe 30 and discharged into the sputum storage barrel 21, and the simulated sputum is trained and recovered. The sputum suction by the sputum suction device 50 is prior art, and the sputum suction process is not described here.

[0046] During sputum suction training, the sensing assembly 60 monitors the sputum suction pressure and sputum suction time of the sputum suction tube 30, so as to help the trainee master and adjust the sputum suction pressure and sputum suction time, and avoid excessive sputum suction action and too long sputum suction time. Preferably, the signal output end of the sensing assembly 60 is connected with the input end of the controller, and the alarm control end of the controller is connected with the alarm, so that when the trainee's sputum suction time is too long, or the sputum suction action is not gentle and the sputum suction pressure is too large, the alarm will alarm and remind.

[0047] In another preferred embodiment, the training model further comprises a flushing liquid storage barrel 22 connected with the outlet of the sputum suction tube 30, the bottom of the flushing liquid storage barrel 22 is provided with a sewage valve 223 for discharging flushing liquid therein, and the flushing liquid storage barrel 22 is arranged in parallel with the sputum liquid storage barrel 21. The sputum suction device 50 generates negative pressure, and the flushing liquid in the airway model 10 is sucked out through the sputum suction tube 30 and discharged into the flushing liquid storage barrel 22. Specifically, the outlet of the sputum suction tube 30 is connected with the parallelly arranged sputum suction branch pipe 211 and liquid suction branch pipe 221, and the outlets of the sputum suction branch pipe 211 and the liquid suction branch pipe 221 are connected with the sputum liquid storage barrel 21 and the flushing liquid storage barrel 22, respectively. The sputum suction branch pipe 211 and the liquid suction branch pipe 221 are respectively provided with a sputum suction valve 212 and a liquid suction valve 222.

[0048] During sputum suction, the sputum suction valve 212 is opened and the liquid suction valve 222 is closed, and the simulated sputum liquid sucked out by the sputum suction tube 30 enters the sputum liquid storage barrel 21 through the sputum suction branch pipe 211. After sputum suction, the sputum suction tube 30 is pulled out of the airway model 10, and the inside of the airway model 10 is flushed with clean flushing liquid (such as bottled sterile water for injection) to simulate the flushing of the airway after actual sputum suction. The liquid suction valve 222 is opened, the sputum suction valve 212 is closed, the sputum suction tube 30 is inserted into the airway model 10, and the sputum suction device 50 works to generate negative pressure. Under the action of negative pressure, the flushing liquid in the airway model 10 is sucked out through the sputum suction tube 30 and discharged into the flushing liquid storage barrel 22 through the liquid suction branch pipe 221.

[0049] In the present application, the training model further comprises a sputum suction outer barrel 20, and the sputum liquid storage barrel 21 and the flushing liquid storage barrel 22 are two inner barrels arranged in parallel and installed in the sputum suction outer barrel 20. The sputum suction branch pipe 211 is inserted from the top of the sputum liquid storage barrel 21, and the liquid suction branch pipe 221 is inserted from the top of the flushing liquid storage barrel 22. The tops of the sputum liquid storage barrel 21 and the flushing liquid storage barrel 22 are communicated, and the top of the sputum suction outer barrel 20 is provided with a negative pressure interface 20a, such as the negative pressure interface 20a being arranged at the top of the flushing liquid storage barrel 22. The sputum suction device 50 is connected with the negative pressure interface 20a through a negative pressure pipe 51. The sputum suction valve 212 and the liquid suction valve 222 are arranged in the sputum suction outer barrel 20 or outside thereof. When the sputum suction valve 212 and the liquid suction valve 222 are arranged in the sputum suction outer barrel 20, switches for controlling the opening and closing of the sputum suction valve 212 and the liquid suction valve 222 can be arranged in the sputum suction outer barrel 20.

[0050] When sputum suction is needed, open the sputum suction valve 212 and close the liquid suction valve 222, and the sputum suction device 50 works to generate negative pressure in the flushing liquid storage barrel 22. Since the top of the sputum storage barrel 21 and the flushing liquid storage barrel 22 are connected, negative pressure is also generated in the sputum storage barrel 21, so that the simulated sputum in the airway model 10 is sucked into the sputum storage barrel 21 through the sputum suction branch pipe 211 and the sputum suction pipe 30. When the flushing liquid in the airway model 10 is to be pumped out, open the liquid suction valve 222 and close the sputum suction valve 212, and the sputum suction device 50 works to generate negative pressure in the flushing liquid storage barrel 22, so that the flushing liquid in the airway model 10 is sucked into the flushing liquid storage barrel 22 through the liquid suction branch pipe 221 and the sputum suction pipe 30.

[0051] In the present application, the lower end of the bronchial model 13 is not closed as shown in Figure 1 , or is closed as shown in Figure 2 . When the lower end of the bronchial model 13 is not closed, a liquid receiving disc 15 is arranged below the bronchial model 13, as shown in Figure 1 , for receiving the flushing liquid of the flushing airway model 10. When the sputum suction pipe 30 is used to pump out the flushing liquid in the airway model 10, the sputum suction pipe 30 should be inserted into the liquid receiving disc 15.

[0052] Example Two

[0053] The structural principle of the present example is basically the same as that of example one, but the difference is that, as shown in Figure 3 , in the present example, the concentration of the simulated sputum at each position of the airway model 10 can be adjusted respectively. Specifically, a heating device 70 is arranged in or outside each sputum output head 42, such as an electric heating sheet 70 fixed to the sputum output head 42. Specifically, the surface of the sputum output head 42 secreting the simulated sputum can be made into an electric heating sheet 70, and the sputum secretion screen hole is arranged on the electric heating sheet 70. The heating device 70 is used to heat the simulated sputum secreted by the sputum output head 42 to increase the concentration of the simulated sputum by evaporation. The simulated sputum can be obtained in the following way: cornstarch and water, after mixing, can produce a mucus-like effect, which is used to simulate sputum; honey and water: honey and water mixed together can also create a viscous liquid, which is used to simulate sputum.

[0054] In this embodiment, the concentration of the simulated sputum contained in the sputum storage barrel 21 is low and the sputum is relatively thin. According to the training requirements, when a thicker simulated sputum concentration is required, after the sputum output head 42 secretes the simulated sputum, the heating device 70 at the corresponding position works. The heating device 70 heats the simulated sputum secreted by the sputum output head 42 to evaporate the water therein to increase the concentration of the simulated sputum. The higher the concentration of the simulated sputum required, the longer the heating time, the more water evaporates. Thus, by controlling the heating time of the heating device 70, the concentration of the simulated sputum can be adjusted. The heating device 70 at each position can work independently, so that simulated sputum of the same or different concentrations can be arranged at different positions in the airway model 10 to meet different training requirements.

[0055] Example 3

[0056] The structural principle of this embodiment is basically the same as that of the first and second embodiments, except that Figure 4 As shown, in this embodiment, a plurality of independently operable airbags 80 are spaced apart within the inner wall of the airway model 10. Each airbag 80 is connected to an inflation / deflation device via an inflation / deflation tube. Each inflation / deflation tube is equipped with an inflation / deflation valve. The inflation / deflation device can be a medical pump. When the inflation / deflation device inflates the airbag 80, the airbag 80 expands and protrudes into the airway model 10 to simulate a protrusion (such as a tumor or blister) in the airway. When the inflation / deflation device inflates the airbag 80, the airbag 80 retracts into the inner wall of the airway model 10.

[0057] When it is necessary to train patients with tumors on the inner wall of the bronchus in suctioning, the inflation valve corresponding to the airbag 80 in the bronchial model 13 is opened, and the inflation and deflation device works to inflate the airbag 80 in the bronchial model 13, so that the airbag 80 expands and protrudes into the bronchial model 13 to simulate the presence of a tumor on the inner wall of the bronchus. During training, trainees need to try their best to avoid the inflated airbag 80. If they cannot avoid the airbag 80, they should move gently.

[0058] It should be noted that by inflating the airbag 80 with sufficient air through the inflation and deflation device, the airbag 80 can also close the corresponding position of the airway model 10 to achieve the opening of different positions of the airway.

[0059] Example 4

[0060] The structural principles of this embodiment are substantially the same as those of the second and third embodiments. The difference is that, in addition to the heating device 70 and the airbag 80, this embodiment also includes a training indicator device (not shown). The training indicator device determines the suction pressure and time based on the sputum concentration and airway patency, and issues prompts. The lower end of the bronchial model 13 of this embodiment is not sealed.

[0061] Suction pressure determination method:

[0062] ;

[0063] wherein, is the suction pressure, is the base suction pressure (80-100mmHg for adult, 60-80mmHg for children), is the sputum concentration (the simulated sputum concentration sucked out of the airway model by the suction catheter), is the sputum concentration influence coefficient on suction pressure (can be determined according to experiment, increases with the increase of sputum concentration), is the airway obstruction rate (the ratio of the sum of the volumes of the airbags 80 to the volume when the airway is unobstructed, the volume of the airbags 80 can be determined by filling), is the airway obstruction condition influence coefficient on suction pressure (can be determined according to experiment, increases with the increase of airway obstruction degree).

[0064] Suction time determination method:

[0065] ;

[0066] wherein, is the suction time, is the base suction time (for example, 10 seconds), is the sputum concentration influence coefficient on suction time (can be determined according to experiment, increases with the increase of sputum concentration), is the airway obstruction condition influence coefficient on suction time (can be determined according to experiment, increases with the increase of airway obstruction degree).

[0067] In the description of the present specification, the description of the terms "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A sputum suction training model, characterized in that: The device comprises an airway model, a sputum storage bucket, a sputum suction tube, a sputum delivery device for delivering simulated sputum in the sputum storage bucket to the airway model, and a sputum suction device for sucking the simulated sputum in the airway model into the sputum storage bucket through the sputum suction tube; The airway model includes a trachea model, an oral cavity model connected to the upper end of the trachea model, and a bronchial model connected to the lower end of the trachea model; The sputum delivery device includes a sputum delivery tube connected to the outlet of the sputum storage barrel and a plurality of sputum delivery heads connected to the outlet of the sputum delivery tube and arranged in parallel. The sputum delivery heads are all provided in the trachea model, the oral cavity model and the bronchial model. The sputum delivery heads are provided with a negative pressure pump for extracting simulated sputum from the sputum storage barrel and secreting it into the airway model through the sputum delivery heads. The sputum discharge head is provided with a sensing component, which can monitor the suction pressure and suction time of the sputum suction tube during sputum suction; The outlet of the sputum suction tube is connected to the inlet of the sputum storage bucket, and the sputum suction tube is inserted into the airway model. The sputum suction device generates negative pressure, and the simulated sputum in the airway model is sucked out through the sputum suction tube and discharged into the sputum storage bucket; The concentration of the simulated sputum at each position of the airway model can be adjusted separately. A heating device is provided in or outside each sputum output head, and the heating device is used to heat the simulated sputum secreted by the sputum output head to increase the concentration of the simulated sputum by evaporation.

2. A sputum suction training model according to claim 1, characterized in that: The airway model also includes a nasal cavity model connected to the upper end of the trachea model, and the nasal cavity model is also provided with the sputum output head, negative pressure pump and sensing component.

3. A sputum suction training model according to claim 1, characterized in that: The signal output end of the sensing component is connected to the input end of the controller, and the alarm control end of the controller is connected to the alarm.

4. A sputum suction training model according to claim 1, characterized in that: It also includes a flushing liquid storage barrel connected to the outlet of the suction tube. The flushing liquid storage barrel and the sputum storage barrel are arranged in parallel. The sputum suction device generates negative pressure, sucks out the flushing liquid in the airway model through the suction tube and discharges it into the flushing liquid storage barrel.

5. A sputum suction training model according to claim 4, characterized in that: The outlet of the sputum suction tube is connected to a sputum suction branch and a liquid suction branch arranged in parallel, and the outlets of the sputum suction branch and the liquid suction branch are respectively connected to a sputum storage bucket and a flushing liquid storage bucket, and the sputum suction branch and the liquid suction branch are respectively provided with a sputum suction valve and a liquid suction valve.

6. A sputum suction training model according to claim 4, characterized in that: The bottom of the flushing liquid storage barrel is provided with a drain valve for discharging the flushing liquid therein.

7. A sputum suction training model according to claim 5, characterized in that: It also includes an outer sputum suction barrel, and the sputum storage barrel and the flushing liquid storage barrel are two inner barrels arranged side by side installed in the outer sputum suction barrel. The tops of the sputum storage barrel and the flushing liquid storage barrel are connected. A negative pressure interface is provided on the top of the outer sputum suction barrel, and the sputum suction device is connected to the negative pressure interface through a negative pressure tube.

8. The sputum suction training model according to claim 1, characterized in that: A plurality of independently operable airbags are arranged at intervals in the inner wall of the airway model, and each airbag is connected to an air inflation and deflation device via an air inflation and deflation tube. By inflating the airbag, the airbag can expand and protrude into the airway model.

9. A sputum suction training model according to claim 8, characterized in that: The training indicator device is further included, wherein the training indicator device determines the suction pressure and suction time according to the concentration of sputum and the patency of the airway and issues a prompt; Method for determining suction pressure: ； in, is the suction pressure, is the basic suction pressure, is the sputum concentration, is the influence coefficient of sputum concentration on sputum suction pressure, is the airway obstruction rate, is the influence coefficient of airway obstruction on suction pressure; Method for determining suctioning time: ； in, is the suction time, is the basic suctioning time, is the influence coefficient of sputum concentration on sputum suction time, is the influence coefficient of airway obstruction on suction time.

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