Patent Application
20120077169
The present invention relates to a tracheal intubation training model and a method for manufacturing a tracheal intubation training model.
When the breathing of a patient stops, there may be a case where an airway which is a passage through which oxygen passes is closed due to the falling of a base portion of a tongue or the like. There has been known a technique referred to as airway control where the breathing of the patient is controlled while securing the smooth flow of oxygen in the airway which is the passage through which oxygen necessary for breathing passes.
As an airway control device for securing an airway, there has been popularly used a trachea intubation tube conventionally, and the airway is secured by inserting a trachea intubation tube into a trachea from a mouth or a nose by way of a larynx.
As described above, it is often a case where such an airway control is carried out in emergencies such as stopping of breathing of the patient and hence, no failure is allowed whereby the airway control is considered as one of techniques which require constant daily training.
There has been proposed a simulation model having a trachea structure simulating an airway as a model for carrying out airway control training using a trachea intubation tube (see patent document 1, for example). A doctor, an emergency medical technician or the like who carries out airway control for a patient (hereinafter referred to as “operator”) carries out airway control training such that the operator finds a trachea inlet formed in the simulation model and inserts the trachea intubation tube through the found trachea inlet.
In recent years, as the airway control device, a laryngeal mask has attracted attention since the laryngeal mask can be easily inserted into the patient and causes little pain during insertion.
In a case where the airway control is carried out using a laryngeal mask, a laryngeal mask where a small mask shaped for covering a larynx is connected to a distal end of a tube shorter than a trachea intubation tube is inserted into a pharyngoesophagus so as to cover a trachea inlet portion thus securing the airway.
With respect to such a method for securing an airway using the laryngeal mask, it is considered that the laryngeal mask can be inserted more easily than the trachea intubation tube. However, when the laryngeal mask is not properly engaged with a pharyngoesophagus including a pharyngo and an esophagus at a predetermined position thus causing a positional displacement of the laryngeal mask, there may be a case where the airway cannot be secured and air leaks from the mask engaging portion so that the expiration or the inspiration of air cannot be properly performed. After all, it is necessary for an operator to master an intubation technique, and it is necessary for him to carry out training to master the technique. However, in a simulation model described in patent document 1, a pharyngoesophagus structure is formed in a flatly-crushed shape and hence, an operator cannot insert the laryngeal mask into the pharyngoesophagus structure whereby airway control training using the laryngeal mask cannot be carried out with such a simulation model.
The present invention has been made under such circumstances, and it is an object of the present invention to provide a tracheal intubation training model with which airway control training can be carried out using an airway control device such as a laryngeal mask which is inserted into a pharyngoesophagus, and a method for manufacturing a tracheal intubation training model.
To achieve the above-mentioned object, according to the invention called for in claim 1, there is provided a method for manufacturing a tracheal intubation training model for airway control training being carried out using an airway control device, an airway pharyngoesophageal area portion simulating a human airway pharyngoesophageal area which includes a pharyngoesophagus being formed in the tracheal intubation training model, the method comprising: a first step where at least the pharyngoesophagus is inflated by applying an inflating pressure to the airway pharyngoesophageal area of a human body subject; a second step where the airway pharyngoesophageal area including the inflated pharyngoesophagus is imaged using an X-ray CT apparatus thus obtaining the three dimensional structure of the airway pharyngoesophageal area; and a third step where the airway pharyngoesophageal area portion is manufactured using the imaged three dimensional structure of the airway pharyngoesophageal area.
The invention called for in claim 2 is, in the method for manufacturing a tracheal intubation training model according to claim 1, characterized in that an annular recessed portion is formed in the middle of the airway pharyngoesophageal area in the third step.
The invention called for in claim 3 is, in the method for manufacturing a tracheal intubation training model according to claim 2, characterized in that the annular recessed portion is formed more largely in the lateral direction as viewed in a front view than in the depth direction as viewed in a front view.
The invention called for in claim 4 is, in the method for manufacturing a tracheal intubation training model according to any one of claims 1 to 3, characterized in that an inflating pressure in the airway pharyngoesophageal area of the subject is 5 kPa to 20 kPa.
The invention called for in claim 5 is, in the method for manufacturing a tracheal intubation training model according to any one of claims 1 to 4, characterized in that the pharyngoesophagus is inflated by hermetically sealing the inside of the airway pharyngoesophageal area of the subject by closing an oral portion and a nasal portion of the subject using a closing member, and by introducing a fluid into the inside of the airway pharyngoesophageal area of the subject from the oral portion.
The invention called for in claim 6 is, in the method for manufacturing a tracheal intubation training model according to any one of claims 1 to 5, characterized in that the three dimensional structure of the inflated airway pharyngoesophageal area is obtained using a three dimensional X-ray tomographic apparatus.
The invention called for in claim 7 is, in the method for manufacturing a tracheal intubation training model according to any one of claims 1 to 6, characterized in that in a case where the subject is a corpse, the first to third steps are performed within a period occurring 24 to 96 hours after the death of the subject.
The invention called for in claim 8 is directed to a tracheal intubation training model which is manufactured using the method for manufacturing a tracheal intubation training model according to any one of claims 1 to 7.
The invention called for in claim 9 is directed to a tracheal intubation training model for airway control training using an airway control device, an airway pharyngoesophageal area portion simulating a human airway pharyngoesophageal area which includes a pharyngoesophagus being formed in the tracheal intubation training model, wherein
an annular recessed portion is formed in the middle of the airway pharyngoesophageal area portion between a vestibular folded portion formed in a trachea inlet portion and a vocal band folded portion.
The invention called for in claim 10 is, in the tracheal intubation training model according to claim 9, characterized in that the annular recessed portion is formed more largely in the lateral direction as viewed in a front view than in the depth direction as viewed in a front view.
According to one aspect of the invention called for in claim 1, the method includes: the first step where at least the pharyngoesophagus is inflated by applying the inflating pressure to the airway pharyngoesophageal area of the human body subject; the second step where the airway pharyngoesophageal area including the inflated pharyngoesophagus is imaged using an X-ray CT apparatus thus obtaining the three dimensional structure of the airway pharyngoesophageal area; and the third step where the airway pharyngoesophageal area portion is manufactured using the imaged three dimensional structure of the airway pharyngoesophageal area. Accordingly, it is possible to manufacture the tracheal intubation training model with which airway control training can be carried out using a laryngeal mask which is an airway control device of a type inserted into the pharyngoesophagus.
According to another aspect of the invention called for in claim 9, there is provided the tracheal intubation training model for airway control training using the airway control device, the airway pharyngoesophageal area portion simulating the human airway pharyngoesophageal area which includes the pharyngoesophagus being formed in a tracheal intubation training model, wherein the annular recessed portion is formed in the middle of the airway pharyngoesophageal area portion between the vestibular folded portion formed in the trachea inlet portion and the vocal band folded portion. Accordingly, in carrying out airway control training using the trachea intubation tube, an operator can carry out training for the sense of being able to avoid the recessed portion which the operator cannot visually recognize so that the operator can carry out airway control training using the trachea intubation tube under substantially the same conditions as the clinical examination.
A mode for carrying out the present invention (hereinafter, referred to as “embodiment”) is explained hereinafter. In explaining the embodiment, the explanation is made in the following order.
1. The constitution of a tracheal intubation training model 1
2. A method for manufacturing the tracheal intubation training model 1
3. A training method using the tracheal intubation training model 1
The tracheal intubation training model 1 according to this embodiment is configured to be favorably used in carrying out airway control training using a laryngeal mask 20 (see
That is, as shown in
The technical feature of the tracheal intubation training model 1 of this embodiment lies in that a pharyngoesophagus portion 15 which constitutes a part of the airway pharyngoesophageal area portion 2 is formed such that the pharyngoesophagus portion 15 is inflated more than a pharyngoesophagus 15A (see
The pharyngoesophagus portion 15 is formed by simulating the pharyngoesophagus 15A of the human body, and includes the pharynx 14A and the esophagus 4A. That is, as shown in
The pharynx 14A of the human body is a passage ranging from a vocal cord to a buccal capsule and a nasal cavity, and is an organ which becomes a passage for alimentary bolus only at the time of swallowing. An end portion of the pharynx 14A is connected to the esophagus 4A, and an esophagus inlet 13A is formed at a connecting portion (see
In view of the above, the pharyngoesophagus portion 15 of the tracheal intubation training model 1 is configured in the substantially same mode as the pharyngoesophagus in a pre-inflated state shown in
In the airway pharyngoesophageal area portion 2 having the above-mentioned constitution, the pharyngoesophagus portion 15 is in an open state and hence, it is possible for an operator to carry out a training for securing an airway by intubating the laryngeal mask 20 into the pharyngoesophagus portion 15. Such training has not been able to be carried out using a conventional tracheal intubation training model where a pharyngoesophagus structure is in a flatly-crushed state. That is, the tracheal intubation training model 1 of this embodiment is configured such that a doctor, an emergency medical technician or the like (hereinafter referred to as “operator”) who carries out airway control for a patient can intubate the laryngeal mask 20 described later into the pharyngoesophagus portion 15 by applying a proper pressure to the pharyngoesophagus portion 15. Accordingly, the operator can engage the laryngeal mask 20 with the pharyngoesophagus portion 15 at a predetermined position under conditions substantially equal to conditions where the operator actually carries out airway control for a patient (hereinafter referred to as “in clinical examination”) and, at the same time, the operator can carry out training for securing an airway where the operator intubates the laryngeal mask 20 into the pharyngoesophagus portion 15 with a pressure which does not damage the pharyngoesophagus portion 15.
Further, an epiglottis portion 5 is a portion which is formed by simulating an epiglottis 5A (see
For example, in carrying out airway control training, as shown in
The trachea portion 3 is a portion formed by simulating the trachea 3A which constitutes a part of the airway of the human body. The trachea 3A of the human body forms an air passage leading to a lung from a throat, and is a tube through which air continuously flows in and flows out from the lung. Accordingly, unlike the esophagus through which the material passes only when a person eats food, a lumen of the trachea portion 3 is usually secured.
With respect to the trachea portion 3, in this embodiment, as shown in
The recessed portions 7 are formed in the middle of the airway pharyngoesophageal area portion 2, and each of which has the annular hollow structure. The recessed portion 7 is formed more largely in the lateral direction as viewed in a front view (see
As described above, the tracheal intubation training model 1 of this embodiment includes the airway pharyngoesophageal area portion 2 having the hollow structure simulating the human airway pharyngoesophageal area including the pharynx portion 14. The pharyngoesophagus portion 15 which forms a part of the airway pharyngoesophageal area portion 2 (particularly, esophagus inlet portion 13) is formed such that the pharyngoesophagus portion 15 is sufficiently opened. The recessed portion 7 constituted of an annular cavity which is formed more largely in the lateral direction as viewed in the front view than in the depth direction as viewed in a front view is provided in the middle of the airway pharyngoesophageal area portion 2 and between the vestibular folded portion 8 formed in the trachea inlet portion 6 and the vocal band folded portion 9.
By forming the recessed portions 7, 7 having the above-mentioned constitution, the tracheal intubation training model 1 of this embodiment can be suitably used in carrying out airway control training using the trachea intubation tube 50.
That is, although described later in detail, as shown in
In view of the above, in the tracheal intubation training model 1 of this embodiment, in substantially the same manner as an actual larynx chamber, the recessed portions 7, 7 are formed between the vestibular folded portions and the vocal band folded portion and hence, an operator can carry out airway control training using the trachea intubation tube 50 under substantially the same conditions as the clinical examination.
As has been explained heretofore, with the use of the tracheal intubation training model 1 of this embodiment, it is possible for an operator to carry out training for securing an airway by intubating the laryngeal mask 20 into a throat or training for securing an airway by intubating the trachea intubation tube 50 into the throat. This is because the pharyngoesophagus portion 15 is formed such that the pharyngoesophagus portion 15 assumes substantially the same state as the pharyngoesophagus portion 15A when a person swallows a material (in a state where the esophagus inlet portion 13 is in a open state). To bring the pharyngoesophagus portion 15 into substantially the same state as the pharyngoesophagus portion 15A when the person swallows the material, the inflating pressure of 5 kPa to 20 kPa may be applied to the airway pharyngoesophagus, for example.
Further, the recessed portions 7, 7 corresponding to the larynx chambers which an operator cannot visually recognize are formed in the tracheal intubation training model 1 of this embodiment. Accordingly, in carrying out airway control training using the trachea intubation tube 50, the operator can carry out training for the sense of being able to avoid the larynx chambers which the operator cannot visually recognize. For example, the operator can sensuously understand that, in a case where the trachea intubation tube 50 is caught by the recessed portion 7, when the operator rotates the trachea intubation tube 50 in the counterclockwise direction, the distal end of the trachea intubation tube 50 moves from a deep portion of the recessed portion 7 to a shallow portion of the recessed portion 7. Accordingly, the operator can remove the distal end of the trachea intubation tube 50 from the recessed portion 7. In this manner, even when the trachea intubation tube 50 is caught by the larynx chamber in the clinical examination, the operator who carries out airway control training using the tracheal intubation training model 1 can properly cope with such a situation and hence, the operator can rapidly secure an airway without damaging the trachea 3A of the patient.
A method for manufacturing the tracheal intubation training model 1 which also forms the gist this embodiment is explained hereinafter. First of all, a human body subject M is prepared. Here, as shown in
When the subject M is prepared, as a first step, at least the pharyngoesophagus 15A is inflated by applying an inflating pressure to the airway pharyngoesophageal area of the subject M. For example, an oral portion and a nasal portion of the subject M are closed using some closing member or a hand thus hermetically sealing the airway pharyngoesophageal area of the subject M. Then, by introducing air from the oral portion, the pharyngoesophagus 15A is inflated with the inflating pressure of 5 kPa to 20 kPa which is substantially equal to a pressure applied to the pharynx 14A when a person chews and swallows food.
Next, as a second step, the three dimensional structure of the airway pharyngoesophageal area is imaged using a three dimensional X-ray CT apparatus. To be more specific, a three dimensional X-ray tomographic apparatus is used. That is, in a state where a pressure in the airway pharyngoesophageal area of the subject M is held at a predetermined pressure, the three dimensional structure of the airway pharyngoesophageal area of the subject M is imaged using a 3D-CT (computer tomographic imaging method). Due to such imaging, data on the three dimensional structure of the airway pharyngoesophageal area of the subject M can be obtained. In the data on the three dimensional structure of the airway pharyngoesophageal area, a trachea portion 41 reproduces the trachea 3A of the subject M and, in the same manner, a pharyngoesophagus portion 45 including a pharynx portion 42, an esophagus inlet portion 43 and an esophagus portion 44 reproduces the pharynx portion 14A, the esophagus 4A and the esophagus inlet 13A of the subject M, and a larynx chamber portion 46 reproduces the larynx chamber of the subject M. Further, the pharyngoesophagus portion 45 is reproduced in an inflated state.
Next, in a third step, based on the data on the three dimensional structure of the airway pharyngoesophageal area obtained in the second step, a mold 40 of the tracheal intubation training model 1 shown in
Then, the tracheal intubation training model 1 as shown in
In the above-mentioned step 1, as another method for inflating the pharyngoesophagus 15A, as shown in
The balloon catheter 30 has substantially the same constitution as the trachea intubation tube 50 described later, and by inflating the balloon 31 provided to the distal end portion of the catheter 30, the catheter 30 can be fixed at a predetermined position in the inside of the subject M. Although it is needless to say that, the balloon 31 of the balloon catheter 30 is inserted into the inside of the subject M in a shrunken state.
The balloon catheter 30 allows the balloon 31 to arrive at a predetermined position of the pharyngoesophagus 15A (for example, esophagus inlet 13A) of the subject M, and the balloon 31 is inflated. For example, the pharyngoesophagus 15A is inflated by a pressurizing means such as a pressurizing pump not shown in the drawing. Here, by monitoring an inflating pressure applied to an airway pharyngoesophagus (at least the pharyngoesophagus 15A) using a pressure gauge not shown in the drawing provided to the balloon catheter 30, the inflating pressure applied to the airway pharyngoesophagus is controlled to 5 kPa to 20 kPa.
Further, as another method for forming the mold 40, for example, there has been known a method for forming the mold 40 using a photo-setting resin. To be more specific, a container is filled with the liquid photo-setting resin, and ultraviolet laser beams which are controlled by a computer so as to obtain a desired pattern are selectively irradiated to a liquid surface of the photo-setting resin thus curing the liquid photo-setting resin of a predetermined thickness. Then, a liquid resin corresponding to an amount of one layer is supplied on the cured layer and, in the same manner as described above, the resin is cured by irradiating ultraviolet laser beams. By repeatedly performing a stacking operation for obtaining the continuous cured layers, the mold 40 having a shape of the three-dimensional structure of the airway pharyngoesophageal area is formed eventually.
As has been explained heretofore, the method for manufacturing the tracheal intubation training model 1 of this embodiment includes the first step where the inflating pressure is applied to the airway pharyngoesophageal area of the human body subject thus inflating at least the pharyngoesophagus 15A, the second step where the airway pharyngoesophageal area including the inflated pharyngoesophagus 15A is imaged using the X-ray CT apparatus thus obtaining the three dimensional structure of the airway pharyngoesophageal area, and the third step where the airway pharyngoesophageal area portion is manufactured using the imaged three dimensional structure of the airway pharyngoesophageal. Accordingly, with the use of the tracheal intubation training model 1 obtained using this manufacturing method, it is possible to carry out airway control training using the laryngeal mask 20 which is inserted into the pharyngoesophagus 15A so as to cover the larynx.
Further, the three dimensional structure of the inflated airway pharyngoesophageal area is obtained using the three dimensional X-ray tomographic apparatus and hence, it is possible to obtain the three dimensional structure of the airway pharyngoesophageal area with high accuracy.
Further, the corpse is used as the subject M, and the above-mentioned first to third steps are performed within a period occurring 24 to 96 hours after the death of the subject and hence, the corpse is in a state where postmortem rigidity of the corpse starts to be loosened and in a state before corruption of the corpse begins. Accordingly, the pharyngoesophagus 15A can be easily inflated.
Further, the realistic recessed portion 7 is formed in the three dimensional structure of the airway pharyngoesophageal area in the tracheal intubation training model 1 and hence, it is possible to carry out airway control training in a state close to the clinic examination.
That is, there has not existed the technical concept of providing the recessed portion 7 corresponding to the larynx chamber in conventional tracheal intubation training models, and the larynx chamber is ignored in the conventional tracheal intubation training model 1. Accordingly, it has been difficult to carry out airway control training using the trachea intubation tube 50 in a state close to the clinical examination. According to the method for manufacturing the tracheal intubation training model of this embodiment, however, it is possible to carry out airway control training using the laryngeal mask 20 effectively.
In this manner, according to the method for manufacturing the tracheal intubation training model of this embodiment, it is possible to obtain the tracheal intubation training model 1 with which both of airway control training using the laryngeal mask 20 and training for securing an airway by intubation using the trachea intubation tube 50 can be carried out effectively thus largely contributing to emergency medical care or the like.
In the above-mentioned method for manufacturing the tracheal intubation training model, air is used as a fluid which is introduced in inflating the pharyngoesophagus 15A in the explanation. However, the fluid may be other gases and, further, liquid or a gel-like fluid may be used as the fluid.
The training method for securing airway using the tracheal intubation training model 1 having the above-mentioned constitution is explained more specifically.
Firstly, the laryngeal mask 20 is briefly explained and, then, the training method for securing airway using the laryngeal mask 20 is explained.
As shown in
With the use of the tracheal intubation training model 1 having the above-mentioned constitution, it is possible to preferably carry out airway control training using the laryngeal mask 20 having the above-mentioned constitution.
That is, as shown in
In inserting the laryngeal mask 20 into the patient, by bringing the laryngeal mask 20 into a state where an upper portion of the ring body 24 is engaged with the epiglottis portion 5, the laryngeal mask 20 is inserted into the patient in a state where a lower portion of the ring body 24 closes a connection portion (esophagus inlet portion 13) between the pharynx portion 14 and the esophagus portion 4 so that the opening portion 22 of the cuff portion 23 faces an inlet of the trachea portion 3 of the tracheal intubation training model 1.
Next, the ring body 24 of the cuff portion 23 is inflated by injecting air, for example, through the inflating valve 26 of the laryngeal mask 20, and the laryngeal mask 20 is fixed at the predetermined position of the pharyngoesophagus portion 15. The pharyngoesophagus portion 15 of the tracheal intubation training model 1 is formed such that the pharyngoesophagus portion 15 is inflated and hence, also in inflating the ring body 24, the operator can obtain feeling of inflating the cuff portion 23 with respect to an actual patient. Accordingly, the operator can sensuously understand a proper amount of air which is injected in the cuff portion 23 so that it is possible to suppress the injection of an excessive amount of air into the cuff portion 23 in the clinic examination thus preventing the pharyngoesophagus 15A or the like of the patient from being damaged.
By performing the above-mentioned operations, the trachea portion 3 of the tracheal intubation training model 1 is communicably connected to the outside of the tracheal intubation training model 1 by way of the opening portion 22 of the laryngeal mask 20 and the airway tube 21. In this manner, the simulation of securing an airway of the patient is carried out. Further, by carrying out airway control training using the tracheal intubation training model 1 which has the structure where the pharyngoesophagus portion 15 is inflated, it is possible to carry out airway control training using the laryngeal mask 20.
As has been explained heretofore, according to the tracheal intubation training model 1 of this embodiment, the esophagus portion 4 is formed such that the esophagus portion 4 is inflated in substantially the same manner as the esophagus 4A when a person swallows food and hence, the operator can insert the laryngeal mask 20 into the pharynx portion 14 without any difficulty. Due to such a constitution, the operator can freely carry out airway control training using the laryngeal mask 20 at any time. Particularly, the pharyngoesophagus portion 15 is formed such that the pharyngoesophagus portion 15 is inflated in substantially the same manner as the pharyngoesophagus 15A when a person swallows food and hence, the operator can carry out training for securing the airway by inserting the laryngeal mask 20 under substantially the same conditions as the clinical examination. Accordingly, in the clinic examination, the operator can carry out the airway control smoothly with confidence.
Next, a training method for securing an airway by trachea intubation is explained. The trachea intubation is a method for securing the airway by inserting the trachea intubation tube 50 into the trachea 3A from a mouth or a nose through the larynx. Firstly, the trachea intubation tube 50 which is used in the training method is briefly explained.
In the trachea intubation tube 50, as shown in
As shown in
The blade 62 is a portion which is inserted into the larynx from a mouth of the patient, and has an approximately arcuate shape such that the blade 62 is gently curved in an upward convex shape and the blade 62 extends from a proximal portion 63 to the distal end portion 64 as viewed in a side view. The distal end portion 64 of the blade 62 is a portion which is firstly inserted into the mouth of the patient. For facilitating the insertion of the blade 62 into the mouth of the patient, the distal end portion 64 of the blade 62 has a shape which has a narrow width in the vertical direction and extends by a predetermined length in the lateral direction as viewed in a front view. Further, a distal end of the blade 62 has a slightly rounded shape for preventing the blade 62 from damaging the larynx of the patient.
With the use of the tracheal intubation training model 1 having the above-mentioned constitution, it is possible for an operator to carry out airway control training using the trachea intubation tube 50 having the above-mentioned constitution.
That is, as shown in
Here, as in the case of the larynx chamber portion 46 formed in the mold 40 shown in
In the case where the distal end of the trachea intubation tube 50 is caught by the larynx chamber (see
In airway control training using the trachea intubation tube 50 according to this embodiment, the operator largely opens the labial portion 11 of the tracheal intubation training model 1 using the larynx mirror 60, and inserts the trachea intubation tube 50 aiming at the trachea inlet portion 6 while watching the trachea inlet portion 6 (see
That is, the vestibular folded portions 8 are formed directly above the recessed portions 7 and hence, as shown in
After the trachea intubation tube 50 is intubated into the model 1, the trachea intubation tube 50 is fixed at a predetermined position of the trachea portion 3 by inflating the cuff portion 53 by injecting air from the inflating valve 55.
By performing the above-mentioned operations, the trachea portion 3 of the tracheal intubation training model 1 is communicably connected to the outside of the tracheal intubation training model 1 by way of the opening portion 52 of the trachea intubation tube 50 and the airway tube 51. In this manner, the simulation of securing an airway of the patient is carried out.
As has been explained heretofore, in a conventional simulation model (see patent document 1), a trachea structure of the simulation model is formed into a flat shape and hence, in carrying out airway control training, there is no possibility that the trachea intubation tube 50 is caught by a portion corresponding to the larynx chamber. That is, with the use of the conventional simulation model, although training for finding the trachea inlet portion from above the simulation model and inserting the trachea intubation tube 50 toward the found-out trachea inlet portion can be carried out, training for securing an airway simulating the larynx chamber cannot be carried out.
Accordingly, even when the operator can smoothly carry out the simulation of securing the airway in the training, there may be a case where the operator cannot necessarily avoid the larynx chamber skillfully in the actual clinic examination. Further, when the trachea intubation tube 50 is caught by the larynx chamber, since the operator is not accustomed to removing the trachea intubation tube 50 from the larynx chamber, there may be a case where the operator cannot secure the airway smoothly due to nervousness and impatience. However, if the operator carries out training using the tracheal intubation training model 1 of this embodiment in advance, even when the trachea intubation tube 50 is caught by the larynx chamber, the operator can perform a proper treatment.
Although the present invention has been explained in conjunction with embodiment, the present invention is not limited to the embodiment, and various modifications are conceivable. For example, although the explanation has been made with respect to the case where air is used as the fluid which is introduced for inflating the pharyngoesophagus 15A, the fluid may be other gases and, further, liquid or a gel-like fluid may be used as the fluid.
Further, in this embodiment, the annular recessed portions 7, 7 are formed on the trachea portion 3 of the airway pharyngoesophageal area portion 2. When airway control training using the trachea intubation tube 50 is not carried out, it is not always necessary to form the recessed portions 7, 7 on the trachea portion 3.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2009-133825 | Jun 2009 | JP | national |
| 2009-244391 | Oct 2009 | JP | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/JP10/59244 | 6/1/2010 | WO | 00 | 11/29/2011 |
