Tracheal intubation guide structure

Abstract

This utility model discloses an endotracheal intubation guidance structure, which includes an intubation body and a protective cuff. The intubation body includes a head and a tail disposed opposite each other, and includes a main gas channel, a gas inlet, and a gas outlet connected in a manner. The head has a gas outlet, and the tail has a gas inlet. The protective cuff is connected to the gas outlet, and the head is located inside the protective cuff. The protective cuff has an inflated state and a contracted state. When the protective cuff switches from the contracted state to the inflated state, it is filled with gas from the main gas channel; when the protective cuff switches from the inflated state to the contracted state, the gas in the protective cuff is output through the main gas channel. The endotracheal intubation guidance structure of this application can not only improve the success rate of doctors during endotracheal intubation, but also reduce the risk of complications during endotracheal intubation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a tracheal intubation guide structure. Background Technology

[0002] Establishing an artificial airway is a crucial step in rescuing critically ill patients. Doctors need to perform endotracheal intubation to ensure a patent airway, effective oxygen supply, and carbon dioxide removal, thereby supporting the patient's vital signs and physiological needs. This process is essential for preventing airway obstruction, reducing the risk of aspiration, and providing mechanical ventilation when necessary.

[0003] Establishing an artificial airway, especially in the emergency department or intensive care unit (ICU), often presents challenges for patients with acute respiratory distress syndrome (ARDS) and those with pre-existing difficult airways, particularly those with a Cormack-Lehane classification of 3-4, who have a higher failure rate during intubation. Even with the use of a video laryngoscope during intubation, difficulties and failures still frequently occur.

[0004] Part of the reason for this phenomenon is that, although a video laryngoscope can effectively expose or partially expose the glottis, the patient's mouth opening (the distance between the upper and lower incisors) is small, limiting the entry of the endotracheal tube. Even if the endotracheal tube is barely inserted into the oral cavity, it may obstruct the intubator's field of vision, making it impossible to effectively observe the position of the tube tip or glottis in real time, thus increasing the difficulty of intubation or even the risk of failure. In addition, existing endotracheal intubation guidance devices are often cumbersome to operate or prone to causing airway injury.

[0005] Therefore, it is necessary to design a guiding device that is easy to operate and can both improve the success rate of endotracheal intubation and reduce the incidence of complications during endotracheal intubation. Utility Model Content

[0006] In view of this, this application provides an endotracheal intubation guidance structure to solve the above-mentioned technical problems.

[0007] This application provides an endotracheal intubation guidance structure, which includes an intubation body and a protective airbag. The intubation body includes a head and a tail disposed opposite to each other. The intubation body includes a main gas channel, a gas inlet, and a gas outlet that are connected together. The head has a gas outlet, and the tail has a gas inlet. The protective airbag is connected to the gas outlet, and the head is located inside the protective airbag. The protective airbag has an inflated state and a contracted state. When the protective airbag switches from the contracted state to the inflated state, the protective airbag is filled with gas from the main gas channel. When the protective airbag switches from the inflated state to the contracted state, the gas in the protective airbag is output through the main gas channel.

[0008] In this application, firstly, the endotracheal intubation guide structure is provided with an inflatable protective cuff located outside the head of the intubation body to cover the head of the intubation body. When the protective cuff is inflated, it can make soft contact with the patient's tissue while separating the head of the intubation body from the patient's tissue, so as to avoid the head of the intubation body making hard contact with the patient's tissue and causing damage to the patient's tissue. Thus, when the doctor uses the endotracheal intubation guide structure to perform intubation, the endotracheal intubation guide structure can reduce the damage to the patient's tissue during intubation by adjusting the state of the protective cuff, thereby reducing the incidence of complications during endotracheal intubation.

[0009] Secondly, when the endotracheal intubation guide structure is inserted into the patient's body, the insertion body itself has a main gas channel for the doctor to inject gas to inflate the protective cuff. Thus, in the endotracheal intubation guide structure of this application, since the space occupied by the main gas channel overlaps with the space occupied by the insertion body, the main gas channel will no longer occupy additional space outside the insertion body. Therefore, the volume of the endotracheal intubation guide structure is reduced to a certain extent. When the doctor uses the endotracheal intubation guide structure, the endotracheal intubation guide structure can be adaptively inserted into a smaller space.

[0010] For example, when a patient's mouth opening is small or their airway is narrow, the endotracheal intubation guide can still be adaptively inserted into the patient's airway. During the insertion of the endotracheal intubation guide, because the guide occupies little space within the airway, the patient's glottis can be at least partially exposed in the doctor's field of vision. This allows the doctor to observe the relative distance between the head of the guide and the glottis in real time, ensuring safe placement of the guide and improving the success rate of intubation.

[0011] For example, in emergency or ICU patients who have spontaneous breathing but are in significant respiratory distress, their blood oxygen saturation is usually very low even with high-concentration oxygen therapy. The patient has almost no oxygen reserve, but may still have an unconscious strong clenching force, causing the patient to resist the doctor's intubation operation and affecting the exposure of the glottis. In this case, if a muscle relaxant is used to relieve the patient's middle clenching force, the patient's low oxygen reserve may lead to a risk of cardiac arrest due to hypoxia.

[0012] In this application, the intubation structure is smaller in size, and its cross-sectional dimensions can be adapted to be smaller. Therefore, the endotracheal intubation guide structure can pass through a smaller gap, so that the head of the endotracheal intubation guide structure can be moved to the target position, thereby guiding the subsequent intubation operation and enabling the doctor to complete his own intubation work.

[0013] In summary, the intubation structure described in this application can reduce the incidence of potential complications during intubation by adjusting the state of the protective cuff, and also reduce the difficulty of endotracheal intubation, thereby improving the success rate of intubation in patients with difficult airways. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A cross-sectional view and a partially enlarged view of an endotracheal intubation guidance structure in its initial state;

[0016] Figure 2 for Figure 1 Cross-sectional view and enlarged view of the endotracheal intubation guide structure in use;

[0017] Figure 3 A cross-sectional view and a partially enlarged view of another endotracheal intubation guidance structure in its initial state;

[0018] Figure 4 for Figure 3 Cross-sectional view and enlarged view of the endotracheal intubation guide structure in use;

[0019] Figure 5 This is a cross-sectional view and a partially enlarged view of another endotracheal intubation guidance structure in use.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100-Tracheal intubation guide structure, 1-Intubation body, 13-Main gas channel, 14-Gas inlet, 15-Gas outlet, 16-Elastic section, 17-Rigid section, 2-Protective airbag, 3-Adjusting airbag, 30-First adjusting part, 31-Second adjusting part, 32-First tube body, 33-Second tube body, 4-First punching valve, 5-Reset component, 6-Movement switch component, 60-Secondary gas channel, 61-Limiting recess, 7-Outer shell, 70-Mounting cavity, 71-Gas passage, 72-Second punching valve, 8-Limiting assembly, 80-Limiting component, 801-Guide slope, 81-Elastic component. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains. The terms “an,” “a,” or “the,” as used herein, do not indicate a limitation of quantity, but are merely used to indicate the presence of at least one. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout 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 herein can be combined with other embodiments.

[0025] The following will refer to the appendices in the embodiments of this application. Figure 1 -Appendix Figure 5 The technical solutions in the embodiments of this application are described clearly and completely.

[0026] Please refer to Figures 1 to 5 The endotracheal intubation guidance structure 100 includes an insertion body 1 and a protective airbag 2. The insertion body 1 plays a major guiding role in guiding the intubation structure to the target position.

[0027] The insertion body 1 includes a head and a tail that are positioned opposite each other. When the endotracheal tube guide structure 100 is inserted into the patient's body, the head of the insertion body 1 first extends into the patient's body, and the tail is adjusted appropriately relative to the patient according to the actual treatment situation of the doctor.

[0028] The main body 1 includes a main gas channel 13, a gas inlet 14 and a gas outlet 15 connected together. The gas outlet 15 is opened at the head and the gas inlet 14 is opened at the tail. In this way, gas can enter from the gas inlet 14, move along the main gas channel 13 and flow out from the gas outlet 15.

[0029] The endotracheal intubation guidance structure 100 also includes a protective cuff 2, which is connected to the gas outlet 15 and has its head located inside the protective cuff 2. In this way, gas can flow into the protective cuff 2 along the main gas channel 13, thereby allowing the protective cuff 2 to inflate. When the protective cuff 2 inflates, both the cuff wall and the gas in the protective cuff 2 can isolate the head of the insertion body 1 from the patient's tissue, reducing the risk of damage to the patient's tissue due to hard contact between the insertion body 1 and the patient's tissue.

[0030] Specifically, the protective airbag 2 has an inflated state and a contracted state. When the protective airbag 2 switches from the contracted state to the inflated state, the protective airbag 2 is filled with gas from the main gas channel 13, the protective airbag 2 inflates and can wrap around the head of the inserted body 1. At the same time, the protective airbag 2 can make soft contact with the patient's tissue.

[0031] It should be noted that when the protective airbag 2 is inflated, it has reached the ideal degree of inflation. At this time, the head of the insertion body 1 cannot contact the patient's tissue due to the isolation effect of the protective airbag 2. It should be understood that the ideal degree of inflation can be determined according to the patient's tissue gap. That is, if the tissue gap is different in different locations of the patient, the ideal degree of inflation of the protective airbag 2 will be different.

[0032] When the protective airbag 2 does not reach the ideal degree of inflation, in other words, the head of the insertion body 1 still has the possibility of contacting the patient's tissue, the protective airbag 2 is considered to be in a contracted state.

[0033] It is important to understand that when a doctor performs intubation, the endotracheal intubation guide structure 100 must first be inserted into the patient's body, so that the head of the insertion body 1 moves to the target position. Then, the intubation structure is inserted, moving along the insertion body 1 of the endotracheal intubation guide structure 100 to guide it to the target position. After the intubation structure is inserted, that is, after the endotracheal intubation guide structure 100 has completed its guiding and assisting functions, for the patient's safety and comfort, and to avoid possible complications, the doctor needs to withdraw the endotracheal intubation guide structure 100. To reduce the interference between the endotracheal intubation guide structure 100 and the intubation structure when the endotracheal intubation guide structure 100 is withdrawn, the protective cuff 2 in the endotracheal intubation guide structure 100 needs to switch from an inflated state to a contracted state. When the protective cuff 2 switches from an inflated state to a contracted state, the gas in the protective cuff 2 is output through the main gas channel 13 to facilitate the doctor's withdrawal of the protective cuff 2.

[0034] In this application, firstly, the endotracheal intubation guide structure 100 is provided with an inflatable protective cuff 2. The protective cuff 2 is located outside the head of the intubation body 1 to cover the head of the intubation body 1. When the protective cuff 2 is inflated, the protective cuff 2 can make soft contact with the patient's tissue, while separating the head of the intubation body 1 from the patient's tissue, so as to avoid the head of the intubation body 1 making hard contact with the patient's tissue and causing damage to the patient's tissue. In this way, when the doctor uses the endotracheal intubation guide structure 100 to perform intubation, the endotracheal intubation guide structure 100 can reduce the damage to the patient's tissue during the intubation operation by adjusting the state of the protective cuff 2, thereby reducing the incidence of complications during endotracheal intubation.

[0035] Secondly, when the endotracheal intubation guide structure 100 is inserted into the patient's body, the insertion body 1 itself has a main gas channel 13 for the doctor to inject gas, causing the protective cuff 2 to inflate. Thus, in the endotracheal intubation guide structure 100 of this application, since the space occupied by the main gas channel 13 overlaps with the space occupied by the insertion body 1, the main gas channel 13 will no longer occupy additional space outside the insertion body 1. Therefore, the volume of the endotracheal intubation guide structure 100 is reduced to a certain extent. When the doctor uses the endotracheal intubation guide structure 100, the endotracheal intubation guide structure 100 can be adaptively inserted into a smaller space.

[0036] For example, when the patient's mouth opening is small or the patient's airway space is narrow, the endotracheal intubation guide structure 100 can still be adaptively inserted into the patient's airway. During the insertion of the endotracheal intubation guide structure 100, because the space occupied by the endotracheal intubation guide structure 100 in the patient's airway is small, the patient's glottis can be at least partially exposed in the doctor's field of vision. Thus, the doctor can observe the relative distance between the head of the endotracheal intubation guide structure 100 and the glottis in real time, and the doctor can safely place the endotracheal intubation guide structure 100, improving the success rate of intubation.

[0037] For example, in emergency or ICU patients who have spontaneous breathing but are in significant respiratory distress, their blood oxygen saturation is usually very low even with high-concentration oxygen therapy. The patient has almost no oxygen reserve, but may still have an unconscious strong clenching force, causing the patient to resist the doctor's intubation operation and affecting the exposure of the glottis. In this case, if a muscle relaxant is used to relieve the patient's middle clenching force, the patient's low oxygen reserve may lead to a risk of cardiac arrest due to hypoxia.

[0038] In this application, the intubation structure is small in size, and its cross-sectional dimensions can be adapted to be smaller. Therefore, the endotracheal intubation guide structure 100 can pass through a smaller gap, so that the head of the endotracheal intubation guide structure 100 can move to the target position and guide the subsequent intubation operation, enabling the doctor to complete his own intubation work.

[0039] In summary, the intubation structure in this application can reduce the incidence of potential complications during intubation by adjusting the state of the protective cuff 2, and also reduce the difficulty of endotracheal intubation and improve the success rate of intubation in patients with difficult airways.

[0040] In addition, in the endotracheal intubation guidance structure 100 of this application, the main gas channel 13, gas inlet 14 and gas outlet 15 are all located on the intubation body 1. Therefore, when performing intubation, the doctor only needs to pay attention to adjusting the position of the intubation body 1 so that the gas inlet 14 is within the range where the doctor can perform inflation operations, so as to ensure that the doctor can inflate and deflate the protective airbag 2 and switch the protective airbag 2 to the inflated or contracted state accordingly.

[0041] Since the main gas channel 13, gas inlet 14, and gas outlet 15 are all formed on the insertion body 1, when the doctor performs the inflation action, the gas entering from the gas inlet 14 will flow out from the gas outlet 15 along the main gas channel 13, so that the gas can effectively move to the protective airbag 2 and gradually switch the protective airbag 2 to the inflated state. The gas will not overflow from other places and affect the inflation effect of the protective airbag 2. Thus, the protective airbag 2 can quickly switch to the inflated state, saving the doctor's inflation time for the protective airbag 2, improving the efficiency of the doctor's intubation operation to a certain extent. At the same time, it also increases the timeliness of the protective airbag 2's protection to a certain extent. When the doctor needs it, the protective airbag 2 can inflate in time to protect the patient's tissues.

[0042] In some other embodiments, the protective airbag 2 can always be an inflatable solid sphere (ellipsoid, rubber ball, etc.) that covers the end of the inserted body 1 to protect the patient's internal tissues by utilizing its own flexibility.

[0043] Optionally, the length of the insertion body 1 is 55cm-75cm and the outer diameter is 4.0mm-5mm to ensure the guiding function of the endotracheal intubation guide structure 100. The insertion body 1 has a certain degree of toughness and hardness to ensure the guiding function of the insertion body 1.

[0044] Furthermore, the length of the insertion body 1 is 60cm-70cm, and the outer diameter is 4.0mm-4.5mm, to meet the intubation needs of most patients.

[0045] Optionally, when the protective airbag 2 is inflated, its maximum diameter after inflation is 7mm-8mm, so as to adapt to the internal conditions of most patients.

[0046] Please refer to this again. Figures 1 to 5 Optionally, the insertion body 1 includes a connected elastic segment 16 and a rigid segment 17. At least a portion of the elastic segment 16 forms a head and is located within the protective airbag 2. The rigid segment 17 is located outside the protective airbag 2, and the end of the rigid segment 17 away from the elastic segment 16 forms a tail. The rigid segment 17 has a gas inlet 14, and the elastic segment 16 has a gas outlet 15. The main gas channel 13 connects the gas inlet 14 and the gas outlet 15.

[0047] Thus, the head of the insertion body 1 is elastic. When the protective airbag 2 does not inflate in time or is not inflated enough, even if the head of the insertion body 1 touches the patient's tissue, due to the elasticity of the head of the insertion body 1, the head of the insertion body 1 can make soft contact with the patient's tissue, thereby reducing the damage of the insertion body 1 to the patient's tissue.

[0048] Please continue to refer to this. Figures 1 to 5 Optionally, the endotracheal intubation guide structure 100 also includes an adjusting airbag 3, with its tail located inside the adjusting airbag 3 and the adjusting airbag 3 connected to the gas inlet 14. The adjusting airbag 3 is used to adjust the inflation effect of the protective airbag 2.

[0049] For reference Figure 1 and Figure 5 When the endotracheal intubation guide structure 100 is in the initial state, the regulating airbag 3 is pre-filled with working gas. When the protective airbag 2 switches from the contracted state to the inflated state, the working gas in the regulating airbag 3 enters the protective airbag 2 through the main gas channel 13.

[0050] Specifically, when the inflation effect of the protective airbag 2 does not reach the aforementioned ideal inflation level, the doctor can press the adjustment airbag 3 to allow the gas in the adjustment airbag 3 to enter the protective airbag 2 along the main gas channel 13, thereby enabling the protective airbag 2 to inflate to the ideal inflation level and thus be in an inflated state.

[0051] On the other hand, if the protective airbag 2 expands too much and interferes with the patient's tissues, affecting the insertion of the endotracheal intubation guide structure 100, then it is necessary to adjust the expansion of the protective airbag 2 to switch it from an over-expanded state to an ideal expansion state. At this time, since the protective airbag 2 and the regulating airbag 3 can be connected through the main gas channel 13, when the patient's tissues squeeze the protective airbag 2, the gas in the protective airbag 2 can enter the regulating airbag 3 along the main gas channel 13. The regulating airbag 3 can absorb this gas through its own elastic expansion, so that the volume of the protective airbag 2 can adapt to the gap size between the patient's tissues, allowing the doctor to smoothly insert the endotracheal intubation guide structure 100.

[0052] In summary, the adjustable airbag 3 can adjust the degree of inflation of the protective airbag 2 and increase the size of the protective airbag 2 after inflation, so that the inflation size of the protective airbag 2 can be adapted to the patient's tissue space and improve the efficiency of the doctor's intubation operation.

[0053] Optionally, both the adjusting airbag 3 and the protective airbag 2 are made of silicone. On the one hand, silicone has good elasticity and a certain degree of anti-aging properties, which can ensure the expansion effect of the adjusting airbag 3 and the protective airbag 2, and also ensure their service life. At the same time, the silicone airbag also has high elasticity, which can make soft contact with the patient's tissue surface and reduce the damage of the endotracheal intubation guide structure 100 to the patient's tissue.

[0054] On the other hand, since silicone (especially medical silicone) has good antibacterial properties and is highly compatible with medical scenarios and needs, the silicone-made adjustment airbag 3 and protective airbag 2 are more in line with the antibacterial properties of the endotracheal intubation guidance structure 100, making the endotracheal intubation guidance structure 100 meet its medical needs, maintaining the patient's health during intubation treatment, and helping to reduce the patient's chance of being infected with other pathogens.

[0055] You can continue to refer to this. Figure 1 , Figure 3 and Figure 5 Furthermore, the adjustable airbag 3 includes a relatively independent first adjusting part 30 and a second adjusting part 31, thereby increasing the adjustable capability of the adjustable airbag 3. Both the first adjusting part 30 and the second adjusting part 31 are connected to the gas inlet 14. The first adjusting part 30 is connected to the tail and covers the gas inlet 14. The second adjusting part 31 is arranged around the outer periphery of the tail.

[0056] An air vent 71 is provided at the tail end, which connects the second regulating part 31 and the main gas channel 13, so that the gas in the second regulating part 31 can enter the main gas channel 13 through the air vent 71.

[0057] The insertion body 1 also includes a second punch valve 72. The second punch valve 72 is circumferentially sealed to the air passage 71. When an external force is applied to the second punch valve 72, the second punch valve 72 opens. When the external force is removed from the second punch valve 72, the second punch valve 72 closes. Thus, the second punch valve 72 can only open when the doctor squeezes the second regulating part 31, allowing the gas in the second regulating part 31 to enter the main gas channel 13. This achieves the effect of relatively independent control between the first regulating part 30 and the second regulating part 31. At least the gas in the second regulating part 31 needs to be squeezed by the doctor before it can enter the main gas channel 13 through the second punch valve 72. In this way, the effect of relatively independent control between the first regulating part 30 and the second regulating part 31 is achieved.

[0058] The tail section is located at least inside the first adjustment section 30 to ensure the communication between the first adjustment section 30, the second adjustment section 31 and the main gas channel 13.

[0059] When the endotracheal intubation guide structure 100 is in its initial state, the first adjustment part 30 and the second adjustment part 31 are pre-filled with working gas, which is used to adjust the degree of inflation of the protective airbag 2.

[0060] For example, along the direction in which the doctor inserts the endotracheal intubation guide structure 100, the endotracheal intubation guide structure 100 has a first position, a second position, and a third position relative to the patient's tissues on the insertion path of the endotracheal intubation guide structure 100. When the doctor inserts the endotracheal intubation guide structure 100 into the patient's body, if the tissue gap at the first position is smaller than the tissue gap at the second position, in order to improve the protective effect of the protective cuff 2, the doctor can adjust the cuff 3 to adaptively inject more gas into the protective cuff 2 to increase the expansion degree of the protective cuff 2. If the tissue gap at the second position is larger than the tissue gap at the third position, the gas in the protective cuff 2 can enter the adjusting cuff 3 along the main gas channel 13 through the squeezing action of the sidewall of the patient's tissue gap on the protective cuff 2, thereby reducing the expansion size of the protective cuff 2 so that the expansion size of the protective cuff 2 can adapt to the tissue gap size at the third position, and the endotracheal intubation guide structure 100 can be successfully inserted.

[0061] For reference Figure 5Optionally, the first adjustment part 30 is connected to the main gas channel 13 through the first tube 32, and the second adjustment part 31 is connected to the main gas channel 13 through the second tube 33. The second tube 33 is sleeved on the outer periphery of the first tube 32, and the air outlets of the first tube 32 and the second tube 33 abut against the first inflation valve. Thus, when the first adjustment part 30 is squeezed, the gas in the first adjustment part 30 will form air pressure to impact the first punch valve 4, causing the first inflation valve to open, and the gas in the first adjustment part 30 will enter the protective airbag 2 along the main gas channel 13. When the second adjustment part 31 is squeezed, the gas in the second adjustment part 31 will form air pressure to impact the first punch valve 4, causing the first inflation valve to open, and the gas in the second adjustment part 31 will enter the protective airbag 2 along the main gas channel 13. Since the two tubes are sleeved, the first adjustment part 30 and the second adjustment part 31 are relatively independent, and the doctor can adjust the expansion degree of the protective airbag 2 by squeezing different adjustment parts.

[0062] For reference Figures 1 to 5 Optionally, the endotracheal intubation guide structure 100 also includes a first punch valve 4, which is circumferentially sealed to the gas inlet 14. When an external force is applied to the first punch valve 4, the first punch valve 4 opens, and when the external force is removed from the first punch valve 4, the first punch valve 4 closes. In this embodiment, the opening and closing of the first punch valve 4 can control the communication between the gas inlet 14 and the external space of the insertion body 1.

[0063] Specifically, when the first punching valve 4 is opened, the gas inlet 14 is connected to the external space of the insertion body 1, and the main gas channel 13 is connected to the external space of the insertion body 1 through the gas inlet 14. At this time, the protective airbag 2 is also connected to the external space of the insertion body 1. The gas in the protective airbag 2 can flow out to the external space of the insertion body 1 along the main gas channel 13, or the gas in the external space of the insertion body 1 can flow into the protective airbag 2 along the main gas channel 13.

[0064] When the first punch valve 4 is closed, the gas inlet 14 is sealed by the first punch valve 4, and the protective airbag 2 is disconnected from the external space of the insertion body 1. At this time, the gas in the two spaces cannot interact with each other.

[0065] It is also important to understand that the opening of the first punching valve 4 cannot be achieved by any external force of any strength. The first punching valve 4 can only be opened when the external force reaches the opening strength of the first punching valve 4.

[0066] Therefore, in this embodiment, the first punch valve 4 requires a certain amount of external force to open. Thus, in this embodiment, the opening strength of the first punch valve 4 can be set. When the first punch valve 4 is subjected to concentrated gas pressure, such as the instantaneous gas force when the doctor squeezes the regulating airbag 3 or the instantaneous gas force formed when the protective airbag 2 is squeezed, the first punch valve 4 opens, allowing gas to repeatedly enter and exit the protective airbag 2 along the main gas channel 13. When the gas impact force is insufficient to open the first punch valve 4, the first punch valve 4 closes. At this time, the doctor does not need to continuously manually block the gas inlet 14 to maintain the expansion state of the protective airbag 2. Thus, the endotracheal intubation guide structure 100 can meet some of the doctor's needs, reducing the operational difficulty for the doctor when using the endotracheal intubation guide structure 100.

[0067] For reference Figures 1 to 5 Furthermore, the endotracheal intubation guidance structure 100 also includes a reset member 5 and a movable switch member 6. The reset member 5 connects the movable switch member 6 and the intubation body 1. When the reset member 5 is in its natural state, the movable switch member 6 is in a first position relative to the intubation body 1, and the first punch valve 4 is in a closed state. When the reset member 5 is compressed, the movable switch member 6 is in a second position relative to the intubation body 1, and the first punch valve 4 is opened by the compression of the movable switch member 6. The movable switch member 6 is provided with a secondary gas channel 60. When the movable switch is in the second position, the secondary gas channel 60 is connected to the main gas channel 13.

[0068] In other words, the movable switch 6 is connected to the insertion body 1 via the reset member 5. Due to the deformation capability of the reset member 5, the movable switch 6 can move closer to or further away from the insertion body 1 to change the force applied to the first punch valve 4, enabling the first punch valve 4 to switch between open and closed states. When the first punch valve 4 is opened by force, the auxiliary gas channel 60 can connect to the main gas channel 13, allowing the protective airbag 2 to connect to the external space of the insertion body 1. Thus, the inflation state of the protective airbag 2 can be changed accordingly. When the first punch valve 4 is no longer under force and closes, the protective airbag 2 is disconnected from the external space of the insertion body 1, and the protective airbag 2 can maintain its current restart state.

[0069] In summary, since the movable switch is a physical structure, the external force it applies to the first punch valve 4 is concrete, unlike the uncertain gas pressure. As long as the movable switch can push against the first punch valve 4, the movable switch can transmit the external force applied by the user to the first punch valve 4 accordingly, so that the first punch valve 4 can be opened or closed in a timely manner.

[0070] Of course, by improving the specifications of the first punching valve 4, such as the thickness of the first punching valve 4 and the connection area between the valve discs, the gas pressure can also open the first punching valve 4.

[0071] Please refer to this first. Figure 1 , Figure 2 and Figure 5 In the embodiment shown, the reset member 5 is capable of bending deformation. When the user removes the pressing action applied to the movable switch, the movable switch can be reset by the reset action of the reset member 5. Figure 2 Restore to Figure 1 The position shown, where, Figure 1 and Figure 5 In the middle, the movable switch 6 is in the first position relative to the insertion body 1, and the first punching valve 4 is in the closed state; Figure 2 In the middle, the movable switch 6 is in the second position relative to the insertion body 1, and the first punching valve 4 is opened by the pressure of the movable switch 6.

[0072] Furthermore, in this embodiment, the reset element 5 is a rubber column, spring, etc.

[0073] Please refer to Figure 3 and Figure 4 The reset element 5 is capable of compressive deformation. When the user removes the pressure applied to the movable switch, the movable switch can be reset by the reset element 5. Figure 4 Restore to Figure 3 The position shown, where, Figure 3 In the middle, the movable switch 6 is in the first position relative to the insertion body 1, and the first punching valve 4 is in the closed state; Figure 4 In the middle, the movable switch 6 is in the second position relative to the insertion body 1, and the first punching valve 4 is opened by the pressure of the movable switch 6.

[0074] Furthermore, in this embodiment, the reset element 5 is a spring, a rubber ring, a silicone ring, etc.

[0075] Please continue to refer to this. Figures 1 to 5 Furthermore, the endotracheal intubation guide structure 100 also includes a housing 7 and a limiting component 8. The housing 7 provides protection to reduce the area of ​​the intubation body 1 exposed to the outside world and to reduce external contamination or impact on the intubation body 1.

[0076] The outer casing 7 includes a mounting cavity 70, the insertion body 1 is located in the mounting cavity 70, the limiting component 8 is connected to the cavity wall of the mounting cavity 70, and the protective airbag 2 is at least partially exposed outside the mounting cavity 70.

[0077] The movable switch 6 is provided with a limiting recess 61. When the movable switch 6 is in the first position, the limiting component 8 is located outside the limiting recess 61. When the movable switch 6 is in the second position, the limiting component 8 is located in the limiting recess 61.

[0078] exist Figure 1 In the initial state, the endotracheal intubation guide structure 100 is in the first position, and the movable switch 6 is in the first position. At this time, the limiting component 8 is not connected to the movable switch 6. When the user presses the movable switch 6, the movable switch 6 moves to the first position. Figure 2 When in the second position shown, the limiting component 8 moves to the limiting recess 61, thereby limiting the side wall of the limiting recess 61 along the moving direction of the moving switch 6. When the user removes the pressure applied to the moving switch 6, the moving switch 6 stops in the second position, and the first punching valve 4 remains open. Due to the connection between the main gas channel 13 and the auxiliary gas channel 60, the protective airbag 2 connects to the external space of the insertion body 1.

[0079] exist Figure 3 In the initial state, the endotracheal intubation guide structure 100 is in the first position, and the movable switch 6 is in the first position. At this time, the limiting component 8 is not connected to the movable switch 6. When the user presses the movable switch 6, the movable switch 6 moves to the first position. Figure 4 When in the second position shown, the limiting component 8 moves to the limiting recess 61, thereby limiting the side wall of the limiting recess 61 along the moving direction of the moving switch 6. When the user removes the pressure applied to the moving switch 6, the moving switch 6 stops in the second position, and the first punching valve 4 remains open. Due to the connection between the main gas channel 13 and the auxiliary gas channel 60, the protective airbag 2 connects to the external space of the insertion body 1.

[0080] Thus, when the user needs to inject gas into the protective airbag 2, the user presses the movable switch 6 to move the movable switch 6 to the second position, so that the protective airbag 2 can always be connected to the external space of the insertion body 1.

[0081] In addition, if the limiting component 8 needs to move, the position of the limiting component 8 can be reasonably planned during product design to reduce the mutual interference between the limiting component 8 and the insertion body 1 during relative movement.

[0082] For reference Figures 1 to 5 In the enlarged illustration, the limiting assembly 8 further includes a limiting member 80 and an elastic member 81. The two ends of the elastic member 81 are respectively connected to the limiting member 80 and the cavity wall of the mounting cavity 70, and the elastic member 81 extends in the radial direction of the mounting cavity 70. The limiting member 80 includes a guide slope 801. The side end of the limiting recess 61 can abut against the guide slope 801. The limiting member 80 squeezes the elastic member 81 and moves in a direction away from the limiting assembly 8.

[0083] Thus, the limiting member 80 can move by squeezing the elastic member 81 to reduce interference with the movement of the movable switch member 6. When the movable switch member 6 moves to the second position, the limiting member 80 can move into the limiting recess 61 under the reset action of the elastic member 81 to form a limiting effect on the movable switch member 6.

[0084] The guide ramp 801 can guide the limiting member 80 into or out of the limiting recess 61, reduce the interference intensity when the limiting member 80 and the movable switch member 6 move relative to each other, and enable them to move smoothly.

[0085] Furthermore, the movable switch 6 is provided with a first engagement tooth, and the insertion body 1 is provided with a second engagement tooth. The second engagement tooth has a guide tooth surface. When the tooth portion of the first engagement tooth moves along the guide tooth surface, the movable switch 6 rotates, and the limiting component 8 enters or leaves the limiting recess 61. This increases the ways in which the catheter structure can be used, making the catheter structure more suitable for the actual application needs of doctors. The specific structure can be referred to as the pressing mechanism in a ballpoint pen, and will not be described in detail here.

[0086] In some other embodiments, since the regulating airbag 3 is elastic and can be squeezed and deformed, and the reset member 5 also has elastic deformation capability, the limiting component 8 can be moved away from the limiting recess 61 by manually turning the switch moving member, thereby enabling the moving switch member 6 to be reset to the first position.

[0087] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tracheal tube guide structure, characterized by, include: The insertion body includes a head and a tail that are disposed opposite to each other. The insertion body includes a main gas channel, a gas inlet and a gas outlet that are connected together. The gas outlet is provided at the head and the gas inlet is provided at the tail. A protective airbag is connected to the gas outlet, and the head is located inside the protective airbag; the protective airbag has an inflated state and a contracted state; when the protective airbag switches from the contracted state to the inflated state, the protective airbag is filled with gas from the main gas channel; when the protective airbag switches from the inflated state to the contracted state, the gas in the protective airbag is output through the main gas channel.

2. The tracheal tube guide structure of claim 1, wherein, The endotracheal intubation guidance structure also includes an adjusting airbag, the tail portion being located inside the adjusting airbag, and the adjusting airbag being connected to the gas inlet; When the endotracheal intubation guide structure is in its initial state, the regulating airbag is pre-filled with working gas. When the protective airbag switches from the contracted state to the inflated state, the working gas in the regulating airbag enters the protective airbag through the main gas channel.

3. A tracheal tube introducer structure as claimed in claim 2, wherein, The adjustable airbag includes a relatively independent first adjusting part and a second adjusting part. Both the first adjusting part and the second adjusting part are connected to the gas inlet. The first adjusting part is connected to the tail and covers the gas inlet. The second adjusting part surrounds the outer periphery of the tail. The tail section has an air passage, which connects the second regulating section and the main gas channel; The insertion body also includes a second punching valve, the circumferential side of which is sealed to the air passage. When an external force is applied to the second punching valve, the second punching valve opens, and when the external force is removed from the second punching valve, the second punching valve closes. When the endotracheal intubation guide structure is in the initial state, the first adjustment section and the second adjustment section are pre-filled with the working gas.

4. A tracheal tube introducer according to any one of claims 1 to 3, wherein, The endotracheal intubation guidance structure also includes a first punch valve, the gas inlet of which is sealed on its periphery. When an external force is applied to the first punch valve, the first punch valve opens, and when the external force is removed from the first punch valve, the first punch valve closes.

5. A tracheal tube introducer structure as claimed in claim 4, wherein, The endotracheal intubation guidance structure also includes a reset component and a movable switch component. The reset component connects the movable switch component and the insertion body. When the reset component is in its natural state, the movable switch component is in a first position relative to the insertion body, and the first punching valve is in a closed state. When the reset component is compressed, the movable switch component is in a second position relative to the insertion body, and the first punching valve is opened by the compression of the movable switch component. The movable switch is provided with a secondary gas channel. When the movable switch is in the second position, the secondary gas channel is connected to the main gas channel.

6. A tracheal tube introducer structure as claimed in claim 5, wherein, The endotracheal intubation guidance structure also includes a housing and a limiting component. The housing includes an installation cavity, the insertion body is located in the installation cavity, the limiting component is connected to the cavity wall of the installation cavity, and the protective airbag is at least partially exposed outside the installation cavity. The movable switch is provided with a limiting recess. When the movable switch is in the first position, the limiting component is located outside the limiting recess. When the movable switch is in the second position, the limiting component is located in the limiting recess.

7. A tracheal tube introducer structure as claimed in claim 6, wherein, The movable switch is provided with a first engagement tooth, and the insertion body is provided with a second engagement tooth. The second engagement tooth has a guide tooth surface. When the tooth portion of the first engagement tooth moves along the guide tooth surface, the movable switch rotates, and the limiting component enters or leaves the limiting recess.

8. A tracheal tube introducer structure as claimed in claim 6 or 7, wherein, The limiting component includes a limiting member and an elastic member. The two ends of the elastic member are respectively connected to the limiting member and the cavity wall of the mounting cavity, and the elastic member extends along the radial direction of the mounting cavity. The limiting member includes a guide slope, and the side end of the limiting recess can abut against the guide slope. The limiting member squeezes the elastic member and moves in a direction away from the limiting component.

9. The endotracheal intubation guidance structure as described in claim 2, characterized in that, Both the regulating airbag and the protective airbag are made of silicone.

10. The tracheal tube introducer structure of claim 1, wherein, The insertion body includes a connected elastic segment and a rigid segment. At least a portion of the elastic segment forms the head and is located within the protective airbag. The rigid segment is located outside the protective airbag, and the end of the rigid segment away from the elastic segment forms the tail. The rigid section provides the gas inlet, the elastic section provides the gas outlet, and the main gas channel connects the gas inlet and the gas outlet.

Images