A nasal tracheal cannula model capable of simulating nasal cavity bleeding

Abstract

The present application provides a nasal tracheal intubation model capable of simulating nasal bleeding, which is a human model; a plurality of bleeding weak points are arranged outside the nostrils of the human model; each bleeding weak point is provided with a buried flow pipe; a pressure sensor is arranged at the flow pipe opening of the end of the flow pipe close to the nostril; the pressure sensor is fixed to the nasal cavity inner wall of the human model; the pressure sensor is used for real-time detection of the pressure when the intubation tube is inserted into the nostril and transmits information to the control console; the control console judges whether the current intubation pressure exceeds the set threshold value based on the information; when the pressure exceeds the set threshold value, the control console controls the opening of the external liquid tank connected with the flow pipe to simulate nasal bleeding. The present application can simulate the nasal bleeding of the patient during the nasal tracheal intubation operation, and provides a real-time feedback system to realize the interaction in the intubation process.

Description

Technical Field

[0001] This invention relates to the field of endotracheal intubation technology, and in particular to a nasotracheal intubation model that can simulate nasal bleeding. Background Technology

[0002] Nasotracheal intubation is a method of endotracheal intubation used to address difficulties with oral intubation and for maxillofacial surgery. Nasotracheal intubation increases patient comfort, is easy to secure, and facilitates oral care. However, nasal anatomical abnormalities and improper nasal intubation techniques can easily lead to nasal bleeding, which, if not properly managed, can result in serious adverse consequences such as airway obstruction and insufficient ventilation. Currently, most endotracheal intubation models are only used for teaching correct endotracheal intubation techniques, but they do not adequately demonstrate teaching or feedback mechanisms for nasal bleeding events encountered during nasotracheal intubation.

[0003] To address this, the present invention discloses a nasotracheal intubation model that can simulate nasal bleeding. This model can simulate nasal bleeding during nasotracheal intubation and provides a real-time feedback system for interaction during the intubation process. This will improve trainees' ability to handle nasal bleeding events during nasotracheal intubation and reduce the incidence of serious adverse events. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention discloses a nasotracheal intubation model capable of simulating nasal bleeding. The technical solution of this invention is implemented as follows:

[0005] A nasotracheal intubation model for simulating nasal bleeding, wherein the model is a human model; several bleeding weak points are provided on the outside of the nostrils of the human model; each bleeding weak point is provided with an implanted flow tube; a pressure sensor is provided at the end of the flow tube near the nostril; the pressure sensor is fixed to the inner wall of the nasal cavity of the human model.

[0006] The pressure sensor is used to detect the pressure when the cannula is inserted into the nostril in real time and transmit the information to the control console; the control console determines whether the current cannula pressure exceeds a set threshold based on the information.

[0007] When the pressure exceeds a set threshold, the console controls the external liquid tank connected to the flow tube to open, simulating nasal bleeding.

[0008] Preferably, the set threshold is 15 kPa-30 kPa.

[0009] Preferably, the number of pressure sensors is 2.

[0010] Preferably, the external liquid tank contains artificial blood plasma.

[0011] Preferably, the external liquid tank is equipped with a pump; each of the flow pipes is equipped with a solenoid valve controlled by the control console.

[0012] Preferably, the center line of the bridge of the nose of the human body model is provided with a dividing point; the dividing point divides the nasal wings of the human body model into the left nasal wing and the right nasal wing.

[0013] This invention discloses a nasal endotracheal intubation model that can simulate nasal bleeding. The model can simulate nasal bleeding in patients during endotracheal intubation and provides a real-time feedback system to enable interaction during intubation. It is suitable for teaching simulation of nasal airway intubation by doctors and is also compatible with various virtual reality teaching technologies in the prior art. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0016] Figure 1 This is a partial structural diagram of a human model for an embodiment of a nasal endotracheal intubation model that can simulate nasal bleeding. The control console and liquid tank are common structures in the field, so they are not shown in the figure.

[0017] Figure 2 This is a nasal bleeding simulation control logic diagram of an embodiment of a nasal endotracheal intubation model that can simulate nasal bleeding.

[0018] Figure 3 The front and bottom views of the bridge of the nose of a human model in an embodiment of a nasal endotracheal intubation model that can simulate nasal bleeding are shown; wherein Figure 3 The left image in the image is the front view. Figure 3 The right image in the image is a bottom view.

[0019] In the above figures, the figure numbers indicate the following:

[0020] 1, First-flow tube; 1-1, First-flow tube orifice;

[0021] 2. Second flow tube; 2-1. Second flow tube inlet;

[0022] 3. First pressure sensor;

[0023] 4. Second pressure sensor;

[0024] 5. Endotracheal intubation;

[0025] 6. Console;

[0026] 7. Liquid tank; 7-1. Pump;

[0027] 8. First solenoid valve;

[0028] 9. Second solenoid valve;

[0029] 10. The dividing point;

[0030] 11. Left nostril;

[0031] 12. Right nostril;

[0032] 13. Nasal septum. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the detailed description is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0035] In the description of specific embodiments of the present invention, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present invention, "multiple" means two or more, unless otherwise explicitly defined.

[0036] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0037] In the description of the embodiments of this invention, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0038] The embodiments of the present invention will be described in more detail below through examples. It should be noted that the embodiments of the present invention are not limited to these examples.

[0039] Example

[0040] In one specific embodiment, such as Figure 1 As shown, a nasotracheal intubation model for simulating nasal bleeding is presented, and the model is a human body model. In this embodiment, two weak points prone to bleeding are simulated on the inner wall of the nasal cavity. An embedded first flow tube 1 and a second flow tube 2 are respectively provided. The first flow tube opening 1-1 of the first flow tube 1 and the second flow tube opening 2-1 of the second flow tube 2 are located on the inner wall of the nasal cavity. A first pressure sensor 3 and a second pressure sensor 4 are respectively attached to the first flow tube opening 1-1 and the second flow tube opening 2-1.

[0041] The endotracheal tube 5 is inserted through the nostril, passes through the nasal cavity, and finally enters the airway. Especially when it enters the nasal cavity, if the simulated endotracheal tube 5 is not properly positioned, or if there are unpredictable factors such as nasal cavity misalignment or nasal turbinate swelling, excessive force may be applied during intubation. This may cause the nasal cavity wall to compress the first pressure sensor 3 or the second pressure sensor 4. If the pressure value reaches or exceeds the set threshold, liquid will flow out from the first flow tube opening 1-1 or the second flow tube opening 2-1, and then the liquid will flow out from the nostril.

[0042] like Figure 2As shown, the control console 6 is configured with pressure thresholds for the first pressure sensor 3 and the second pressure sensor 4. Based on clinical experience, nasal bleeding occurs when the pressure reaches 20 kPa or higher when the intubation tube touches the bleeding area. Therefore, the threshold values ​​for both the first pressure sensor 3 and the second pressure sensor 4 are set to around 20 kPa. The first pressure sensor 3 and the second pressure sensor 4 detect the pressure value during intubation in real time and transmit the data to the control console 6. The control console 6 then determines whether the pressure collected by the first pressure sensor 3 or the second pressure sensor 4 has reached or exceeded the threshold value. Once the pressure reaches or exceeds the threshold value, the control console 6 controls the pump 7-1 (a small-flow peristaltic pump is used in this embodiment) in the liquid tank 7 to open, as well as the first solenoid valve 8 or the second solenoid valve 9 corresponding to the first flow tube 1 or the second flow tube 2 to open. The liquid in the liquid tank 7 is pumped through the pump 7-1 and the first solenoid valve 8 or the second solenoid valve 9 to the first flow tube 1 or the second flow tube 2 and finally flows out of the nasal cavity. The liquid in the liquid tank 7 is artificial blood plasma that simulates the flow characteristics of the human body.

[0043] like Figure 3 As shown, to better clean nasal bloodstains, this embodiment features a dividing line 10 along the center line of the bridge of the nose on the mannequin. Dividing the mannequin's nostrils into a left nostril 11 and a right nostril 12, the operator can separate the left nostril 11 and right nostril 12 from the dividing line 10. During cleaning, by separating the left nostril 11 and right nostril 12 from the dividing line 10, the operator can visually inspect the nasal septum 13 and the internal condition of the nasal cavity, making it easier to wipe away any remaining bloodstains from nasal bleeding.

[0044] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nasotracheal intubation model for simulating nasal bleeding, wherein the model is a human model; characterized in that, The human model has several bleeding weak points on the outside of the nostrils; each bleeding weak point is equipped with an embedded drainage tube; a pressure sensor is installed at the end of the drainage tube near the nostril; the pressure sensor is fixed to the inner wall of the nasal cavity of the human model. The pressure sensor is used to detect the pressure when the cannula is inserted into the nostril in real time and transmit the information to the control console; the control console determines whether the current cannula pressure exceeds a set threshold based on the information. When the pressure exceeds a set threshold, the console controls the external liquid tank connected to the flow tube to open, simulating nasal bleeding.

2. The nasotracheal intubation model for simulating nasal bleeding according to claim 1, characterized in that, The set threshold is 15 kPa-30 kPa.

3. The nasotracheal intubation model for simulating nasal bleeding according to claim 1, characterized in that, The number of pressure sensors is 2.

4. The nasotracheal intubation model for simulating nasal bleeding according to claim 1, characterized in that, The external liquid tank contains artificial blood plasma.

5. A nasotracheal intubation model for simulating nasal bleeding according to claim 1, characterized in that, The external liquid tank is equipped with a pump; each of the flow pipes is equipped with a solenoid valve controlled by the control console.

6. The nasotracheal intubation model for simulating nasal bleeding according to claim 1, characterized in that, The human model has a dividing point along the center line of the bridge of the nose; the dividing point divides the nasal wing of the human model into the left nasal wing and the right nasal wing.

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