Head-mounted device for medical teaching simulation

Abstract

The utility model belongs to the technical field of medical teaching equipment, and provides a head-mounted device for medical teaching simulation, which comprises a head-mounted piece and an organ simulation assembly, the head-mounted part comprises a nose model part, the nose model part is provided with a cavity for placing the nose of a user, and the nose model part is provided with a bandage part for fixing the head of the user and a catheter nasal cavity part for simulating the nasal cavity; the organ simulation assembly comprises an esophagus simulation part, a trachea simulation part and a stomach simulation part. The device can depend on the body of a wearing user as a human body model, the overall structure is smaller and lighter, and the device is convenient to move and store; when medical teaching simulation is carried out, a wearer can become a simulated patient in medical teaching, compared with an existing training model which is independent of students and cannot carry out feedback, the trained students can directly communicate with the wearer and carry out feedback, and a real training interaction feeling can be established.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical teaching equipment, and in particular relates to a head-mounted device used for medical teaching simulation. Background Art

[0002] Currently, in medical education, special training models are designed for medical or nursing students to practice. For example, application number 202321729316.5, title: Utility Model Patent for Gastric Tube Insertion Operation Training Model for Teaching, has a structure with a human model of the head and abdominal cavity. The overall structure is relatively large and heavy, making it inconvenient to move and store. Moreover, the training model is a structure independent of the students. When students perform training operations on the training model, the training model has no feedback function, and students cannot establish a real sense of training interaction with the training model. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a head-mounted device for medical teaching simulation.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A head-mounted device for medical teaching simulation, comprising a head-mounted component and an organ simulation component;

[0006] The headgear includes a nose model, the nose model is provided with a cavity for accommodating the user's nose, the nose model is provided with a strap for fixing the user's head and a nasal cavity portion for simulating a tube for the nasal cavity;

[0007] The organ simulation component includes an esophagus simulation component, a trachea simulation component and a stomach body simulation component. The esophagus simulation component is arranged through the nose model component. One end of the esophagus simulation component is connected to the tube-placed nasal cavity, and the other end is communicated with the stomach body simulation component. One end of the trachea simulation component is communicated with the esophagus simulation component.

[0008] Preferably, the nose model is a truncated cone structure having a small end face and a large end face, the tube-placed nasal cavity portion is arranged at the small end face of the nose model, and the cavity opening is arranged at the large end face of the nose model.

[0009] Preferably, the side of the nose model is provided with a breathing hole for the user to breathe and a through hole for the esophagus simulation part to pass through, and the number of the breathing holes is more than two and is evenly distributed on the side of the nose model.

[0010] Preferably, the number of the tube-placed nasal cavity parts is two, and the tube-placed nasal cavity part includes a tube-placed nasal cavity opening communicated with the cavity body, a connecting seat is provided at the tube-placed nasal cavity opening, and a connecting sleeve is provided at one end of the esophageal simulation part, and the connecting seat and the connecting sleeve are connected by a threaded connection structure.

[0011] Preferably, the esophageal simulation component includes an esophageal cervical segment, an esophageal thoracic segment and an esophageal abdominal segment, wherein the esophageal cervical segment, the esophageal thoracic segment and the esophageal abdominal segment are sequentially connected and communicated from top to bottom, and an esophageal clamp is provided at the communication point between the esophageal thoracic segment and the esophageal abdominal segment;

[0012] The esophagus simulation part is made of soft silicone material. The esophagus clamp has a clamping part with adjustable size. The clamping part is arranged at the connecting part of the thoracic section of the esophagus and the abdominal section of the esophagus.

[0013] Preferably, the esophageal cervical section matches the through hole, and the connecting sleeve is provided on the esophageal cervical section;

[0014] One end of the esophageal abdominal segment is communicated with the gastric body simulation component;

[0015] The outer wall surface of the thoracic esophagus segment is provided with an inner concave portion, and the inner concave portion and the inner wall surface of the thoracic esophagus segment form an esophageal stenosis opening. The cross-sectional size of the esophageal stenosis opening is smaller than the cross-sectional size of the thoracic esophagus segment, and the position of the esophageal stenosis opening is close to the position where the trachea simulation component and the esophageal simulation component are connected.

[0016] Preferably, the stomach body simulation piece has a liquid storage cavity for storing liquid, and the stomach body simulation piece is provided with a gastric fluid outlet end, the gastric fluid outlet end is communicated with the liquid storage cavity, and the gastric fluid outlet end is provided with a stomach clamp.

[0017] Preferably, the stomach body simulation part is a balloon structure and is made of soft silicone material.

[0018] Preferably, the trachea simulation part is made of soft silicone material, and the other end of the trachea simulation part is provided with a blowing part, and the blowing part is made of hard plastic material.

[0019] Preferably, the blowing member is connected to the other end of the trachea simulation member via a threaded connection structure.

[0020] Compared with the prior art, the beneficial effects of the present invention include:

[0021] The head-mounted device for medical teaching simulation of the present application can be worn on the user's head. Compared with the existing training model which is a whole human body model structure, it can rely on the body of the wearing user as a human body model, and there is no need to design the structure of the human body model. The overall structure is more compact and lightweight, and easy to move and store. At the same time, because the device is worn on the user's head, when conducting medical teaching simulation, the wearer can become the simulated patient in the medical teaching. Compared with the existing training model which is independent of the students and cannot provide feedback, the training students can directly communicate and provide feedback with the wearer, and a real sense of training interaction can be established. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 This is a schematic diagram of the connection between the nose model and the esophageal cervical section of the present invention.

[0025] in:

[0026] 1-headgear, 101-nose model, 1011-cavity, 1012-small end surface, 1013-large end surface, 102-strap, 103-nasal cavity for tube placement, 1031-connecting seat, 104-through hole, 105-breathing hole;

[0027] 2-Organ simulation components, 201-Esophagus simulation component, 2011-Esophagus cervical segment, 2012-Esophagus thoracic segment, 20121-Esophagus stricture, 2013-Esophagus abdominal segment, 2014-Esophagus clamp, 202-Trachea simulation component, 2021-Insufflation component, 203-Stomach body simulation component, 2031-Gastric fluid outlet, 2032-Stomach clamp. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] Example:

[0031] like Figure 1-2 As shown, this embodiment provides a head-mounted device for medical teaching simulation, including a head-mounted component 1 and an organ simulation component 2;

[0032] The headgear 1 includes a nose model 101 having a cavity 1011 for placing the user's nose, a strap 102 for fixing the user's head, and a nasal cavity 103 for simulating a nasal cavity.

[0033] The organ simulation component 2 includes an esophagus simulation component 201, a trachea simulation component 202 and a stomach body simulation component 203. The esophagus simulation component 201 is arranged through the nose model component 101. One end of the esophagus simulation component 201 is connected to the tube-placed nasal cavity 103, and the other end is arranged in communication with the stomach body simulation component 203. One end of the trachea simulation component 202 is arranged in communication with the esophagus simulation component 201.

[0034] The head-mounted device for medical teaching simulation of the present application can be worn on the user's head. Compared with the existing training model which is a whole human body model structure, it can rely on the body of the wearing user as a human body model, and there is no need to design the structure of the human body model. The overall structure is more compact and lightweight, and easy to move and store. At the same time, because the device is worn on the user's head, when conducting medical teaching simulation, the wearing user can become a simulated patient in the medical teaching. Compared with the existing training model which is independent of the students and cannot provide feedback, the training students can directly communicate and provide feedback with the wearing user, and a real sense of training interaction can be established.

[0035] The head-mounted device for medical teaching simulation of this embodiment can be used in teaching the operation of simulating a gastric tube.

[0036] The specific structure of the headgear 1 of this embodiment is as follows:

[0037] The nose model 101 is a truncated cone structure having a small end surface 1012 and a large end surface 1013 . The nasal cavity portion 103 for placing the tube is located at the small end surface 1012 of the nose model 101 , and the opening of the cavity 1011 is located at the large end surface 1013 of the nose model 101 .

[0038] Specifically, the side of the nose model 101 is provided with a breathing hole 105 for the user to breathe and a through hole 104 for the esophagus simulation part 201 to pass through. The number of the breathing holes 105 is more than two and they are evenly distributed on the side of the nose model 101.

[0039] Specifically, there are two tube-placed nasal cavity parts 103, and the tube-placed nasal cavity parts 103 include a tube-placed nasal cavity opening communicated with the cavity 1011, a connecting seat 1031 is provided at the tube-placed nasal cavity opening, and a connecting sleeve is provided at one end of the esophagus simulation part 201, and the connecting seat 1031 is connected to the connecting sleeve through a threaded connection structure.

[0040] The specific wearing method is:

[0041] The opening of the cavity 1011 of the large end surface 1013 of the nose model part 101 is set toward the nose of the wearer's face. The nose model part 101 is fixed to the wearer's head by the strap part 102. The breathing hole 105 provided can increase the air permeability of the nose model part 101.

[0042] The specific structure of the esophagus simulation part 201 is as follows:

[0043] The esophageal simulation component 201 includes an esophageal cervical segment 2011, an esophageal thoracic segment 2012, and an esophageal abdominal segment 2013. The esophageal cervical segment 2011, the esophageal thoracic segment 2012, and the esophageal abdominal segment 2013 are sequentially connected and communicated from top to bottom. An esophageal clamp 2014 is provided at the connection between the esophageal thoracic segment 2012 and the esophageal abdominal segment 2013.

[0044] The esophageal simulator 201 is made of soft silicone. The esophageal clamp 2014 has an adjustable clamping portion located at the junction of the thoracic esophageal segment 2012 and the abdominal esophageal segment 2013. In the default state, the clamping portion of the esophageal clamp 2014 is in a state of clamping the junction of the thoracic esophageal segment 2012 and the abdominal esophageal segment 2013, making the junction of the thoracic esophageal segment 2012 and the abdominal esophageal segment 2013 closed.

[0045] Specifically, the esophageal cervical section 2011 cooperates with the through hole 104, and the connecting sleeve is disposed on the esophageal cervical section 2011;

[0046] One end of the esophageal abdominal segment 2013 is connected to the stomach body simulation component 203;

[0047] The outer wall of the thoracic esophageal segment 2012 is provided with an inner recess, which forms an esophageal stenosis opening 20121 with the inner wall of the thoracic esophageal segment 2012. The cross-sectional dimensions of the esophageal stenosis opening 20121 are smaller than those of the thoracic esophageal segment 2012. The esophageal stenosis opening 20121 is located near the junction of the tracheal simulator 202 and the esophageal simulator 201. The esophageal stenosis opening 20121 simulates the primary physiological stenosis of the esophageal simulator 201. The lumen of the esophageal stenosis opening 20121 is narrow, preventing the stomach tube from passing directly through it, which could easily lead to the stomach tube being misplaced during the intubation procedure. The distance between the esophageal stenosis opening 20121 and the nasal cavity 103 for intubation is generally set at 15 cm. When the tube insertion depth reaches approximately 15 cm or encounters resistance, the student is instructed to swallow and pull the trachea simulator 202 outward to enlarge the esophageal stenosis 20121, allowing the tube to pass smoothly through the esophageal stenosis 20121. This structure can be used to train students' communication and handling skills for common problems during the tube insertion process.

[0048] The specific structure of the stomach body simulation part 203 is as follows:

[0049] The stomach body simulator 203 has a liquid storage cavity for storing liquid. It is equipped with a gastric fluid outlet 2031, which communicates with the liquid storage cavity and is equipped with a stomach clamp 2032. The structure of the stomach clamp 2032 is identical to that of the esophageal clamp 2014. In its default state, the clamping portion of the stomach clamp 2032 clamps the gastric fluid outlet 2031, keeping it closed. The distance between the stomach body simulator 203 and the nasal cavity 103 is typically set at 45 cm. The stomach body simulator 203 can simulate clinical catheterization procedures, allowing for the withdrawal of gastric fluid (pre-filled with warm water or other liquids) and the audible sound of air passing through water. When the gastric tube is inserted for a length of 45 to 55 cm, students can withdraw gastric fluid from the tube. When students quickly inject a small amount of air into the gastric tube, they can hear the sound of air passing through water near the gastric body simulation 203. This structure helps students learn to verify the successful placement of the gastric tube. The above operation requires the clamping portion of the stomach clamp 2032 to maintain a tight grip on the gastric fluid outlet 2031, allowing the gastric fluid to be stored within the gastric body simulation 203. When the clamping portion of the stomach clamp 2032 is released, the gastric fluid flows out of the gastric body simulation 203, keeping the gastric body simulation 203 dry and extending its service life.

[0050] Specifically, the stomach body simulation part 203 is a balloon structure, and the stomach body simulation part 203 is made of soft silicone.

[0051] The specific structure of the trachea simulation part 202 is as follows:

[0052] The trachea simulation part 202 is made of soft silicone material. The other end of the trachea simulation part 202 is provided with a blowing part 2021, which is made of hard plastic material.

[0053] Specifically, the blowing member 2021 is connected to the other end of the trachea simulation member 202 via a threaded connection structure.

[0054] When the gastric tube reaches the designated depth, the operator instructs the wearer to take a deep breath. While exhaling through the blower 21, the wearer quickly places the gastric tube, located outside the nasal cavity 103, into a basin of warm water. Bubbles can be seen escaping from the water. This structure simulates the effects of a gastric tube being mistakenly inserted into the trachea, helping students learn to identify failed gastric tube insertions, enhancing their experience and avoiding trial-and-error procedures on patients in the clinic.

[0055] The specific teaching simulation of this embodiment is as follows:

[0056] 1. After the nose model 101 is connected to the esophagus simulation part 201, the student playing the patient (i.e., the wearer) can fix it around the nose with the strap 102 and use the breathing hole 105 to breathe normally.

[0057] 2. During the operation, the trainee inserts the gastric tube through the nasal cavity 103. The gastric tube enters the cervical esophagus 2011 and reaches the first physiological stenosis of the esophageal simulator 201, namely the esophageal stenosis ostium 20121. The trainee instructs the wearer to swallow and move the tube toward the trachea simulator 202. The gastric tube successfully passes through the esophageal stenosis ostium 20121 and enters the thoracic esophagus 2012.

[0058] 3. At this point, the gastric tube will enter the second physiological narrowing of the esophageal simulator 201, where the esophageal clamp 2014 is located. The user should cooperate by vomiting or nausea. The operator should instruct them to relax, take a deep breath, and open their mouth to check that the gastric tube is properly contained within their oral cavity. After this is complete, the user can release the device, allowing the gastric tube to pass smoothly into the abdominal esophagus 2013.

[0059] 4. When the gastric tube is inserted to the normal adult depth of 45 to 55 cm, it enters the gastric body simulation 203. The student can aspirate gastric fluid from the gastric body and hear the sound of air passing through water when injecting air, which serves as a basis for verifying that the gastric tube has been successfully inserted.

[0060] 5. The length of the trachea simulator 202 is consistent with the total length of the esophagus simulator 201 (typically 45 cm), and due to physiological structural reasons, it is very easy to be inserted incorrectly. The operator should instruct the wearer to take a deep breath. While the wearer exhales through the inflatable element 2021, the operator should quickly place the gastric tube located outside the nasal cavity 103 into a basin of warm water. If bubbles are seen in the water, the tube placement has failed.

[0061] 6. After the operation is completed, open the stomach clamp 2032 to allow the liquid in the stomach body simulation part 203 to flow out, keeping the entire head-mounted device dry and extending its service life.

[0062] In summary, the present invention adopts a head-mounted design, and the wearing method is simple and easy to learn, without the need for special training; it is convenient and practical for students to use during operation, and the overall structure is lightweight and easy to store and move. At the same time, the wearer can interact with the operator as a patient, thereby enhancing the operator's sense of presence during the catheterization operation, as well as the patient's empathy for clinical patients, and ultimately improving patient satisfaction.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A head-mounted device for medical teaching simulation, characterized in that: include: Headgear and organ simulation components; The headgear includes a nose model, the nose model is provided with a cavity for accommodating the user's nose, the nose model is provided with a strap for fixing the user's head and a nasal cavity portion for simulating a tube for the nasal cavity; The organ simulation component includes an esophagus simulation component, a trachea simulation component and a stomach body simulation component. The esophagus simulation component is arranged through the nose model component. One end of the esophagus simulation component is connected to the tube-placed nasal cavity, and the other end is communicated with the stomach body simulation component. One end of the trachea simulation component is communicated with the esophagus simulation component.

2. The head-mounted device for medical teaching simulation according to claim 1, characterized in that: The nose model is a truncated cone structure with a small end face and a large end face. The tube-placed nasal cavity is arranged at the small end face of the nose model, and the cavity opening is arranged at the large end face of the nose model.

3. The head-mounted device for medical teaching simulation according to claim 2, characterized in that: The side of the nose model is provided with a breathing hole for the user to breathe and a through hole for the esophagus simulation part to pass through. The number of the breathing holes is more than two and they are evenly distributed on the side of the nose model.

4. The head-mounted device for medical teaching simulation according to claim 3, characterized in that: There are two tube-placed nasal cavities, each of which includes a tube-placed nasal opening communicating with the cavity, a connecting seat being provided at the tube-placed nasal opening, a connecting sleeve being provided at one end of the esophageal simulation component, and the connecting seat and the connecting sleeve being connected via a threaded connection structure.

5. The head-mounted device for medical teaching simulation according to claim 4, characterized in that: The esophageal simulation component includes an esophageal cervical segment, an esophageal thoracic segment, and an esophageal abdominal segment. The esophageal cervical segment, the esophageal thoracic segment, and the esophageal abdominal segment are sequentially connected and communicated from top to bottom, and an esophageal clamp is provided at the communication point between the esophageal thoracic segment and the esophageal abdominal segment. The esophagus simulation part is made of soft silicone material. The esophagus clamp has a clamping part with adjustable size. The clamping part is arranged at the connecting part of the thoracic section of the esophagus and the abdominal section of the esophagus.

6. The head-mounted device for medical teaching simulation according to claim 5, characterized in that: The esophageal cervical section matches the through hole, and the connecting sleeve is arranged on the esophageal cervical section; One end of the esophageal abdominal segment is communicated with the gastric body simulation component; The outer wall surface of the thoracic esophagus segment is provided with an inner concave portion, and the inner concave portion and the inner wall surface of the thoracic esophagus segment form an esophageal stenosis opening. The cross-sectional size of the esophageal stenosis opening is smaller than the cross-sectional size of the thoracic esophagus segment, and the position of the esophageal stenosis opening is close to the position where the trachea simulation component and the esophageal simulation component are connected.

7. The head-mounted device for medical teaching simulation according to claim 1, characterized in that: The stomach body simulation piece has a liquid storage cavity for storing liquid. The stomach body simulation piece is provided with a gastric fluid outlet end, the gastric fluid outlet end is communicated with the liquid storage cavity, and the gastric fluid outlet end is provided with a stomach clamp.

8. The head-mounted device for medical teaching simulation according to claim 7, characterized in that: The stomach body simulation piece is a balloon structure and is made of soft silicone material.

9. The head-mounted device for medical teaching simulation according to claim 1, characterized in that: The trachea simulation part is made of soft silicone material, and the other end of the trachea simulation part is provided with a blowing part, which is made of hard plastic material.

10. The head-mounted device for medical teaching simulation according to claim 9, characterized in that: The blowing component is connected to the other end of the trachea simulation component through a threaded connection structure.

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