Emergency catheter with adjustable bending radius

Abstract

The application belongs to the technical field of medical devices, solves the technical problem that it is difficult to adjust the bending radius of the emergency catheter without taking out the catheter, and provides an emergency catheter convenient for adjusting the bending radius, which comprises a catheter main body, the catheter main body comprises a first mounting part and a second mounting part, the second mounting part is provided with an elastic member capable of changing the bending radius of the catheter main body, the second mounting part comprises an upper mounting part and a lower mounting part oppositely arranged along the length direction of the catheter main body, the elastic member comprises a first elastic member mounted in the upper mounting part and a second elastic member mounted in the lower mounting part, and the bending radius of the catheter main body is adjusted by the cooperation of the first elastic member and the second elastic member, so that the emergency intubation speed and accuracy are improved without removing the catheter for multiple attempts of bending adjustment outside the body, which is beneficial to medical staff to save emergency time.

Description

[0001] This invention is a divisional application of the invention patent application filed on December 6, 2021, entitled "Emergency Catheter and Emergency Intubation Method Based on Real-time Image Adjustment of Arc", with application number 2021115067663. Technical Field

[0002] This invention relates to the field of medical device technology, and in particular to an emergency catheter with an adjustable curvature. Background Technology

[0003] Intubation is a medical procedure used in special circumstances. It includes endotracheal intubation and gastric tube intubation. Endotracheal intubation involves inserting a special endotracheal tube through the mouth or nose, via the glottis, into the trachea or bronchus. This provides optimal conditions for airway patency, ventilation, oxygen supply, and airway suction, and is a crucial measure for rescuing patients with respiratory dysfunction. Gastric tube intubation involves manually inserting a gastric tube through the mouth or nose into the esophagus, through the pharynx, and down the esophagus to the stomach. Water and food are then manually injected into the nasogastric tube and stomach using a syringe plunger and piston, ensuring the patient receives adequate nutrition, hydration, and medication.

[0004] Traditional endotracheal intubation guidewires are indeed an important tool, helping medical staff to more easily and correctly place the endotracheal tube in the patient's trachea. Medical staff insert a laryngoscope into the patient's mouth and forcefully pull up the epiglottis to fully expose the glottis. Once the glottis is fully exposed, the medical staff slowly advances the endotracheal tube with the guidewire, ensuring it enters the trachea along the correct path. The main advantage of using a wire guidewire is that it provides a sturdy support for the endotracheal tube, making it easier to pass through the glottis. However, this method also has its limitations and risks. For example, the guidewire may damage the trachea or other structures. When using a wire guidewire for endotracheal intubation, it may be necessary to adjust its curvature multiple times, which not only wastes precious rescue time but may also lead to unstable guidewire shape, making it difficult to adjust the curvature of the emergency tube without removing it. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide an emergency catheter with an easily adjustable curvature, in order to solve the existing technical problem that it is difficult to adjust the curvature of the emergency catheter without removing it.

[0006] The technical solution adopted in this invention is:

[0007] This invention provides an emergency catheter with adjustable curvature, comprising a catheter body, the catheter body including a first mounting part and a second mounting part, both the first mounting part and the second mounting part being arranged along the length direction of the catheter body, the second mounting part being provided with an elastic element that can change the curvature of the catheter body, wherein the elastic element includes an elastic element and a connector, the elastic element being compressed or stretched by the connector, one end of the elastic element being fixed to the second mounting part, and the other end of the elastic element being connected to the connector;

[0008] The second mounting portion includes an upper mounting portion and a lower mounting portion disposed opposite to each other along the length direction of the catheter body. The elastic element includes a first elastic element installed in the upper mounting portion and a second elastic element installed in the lower mounting portion. The curvature of the catheter body is adjusted by the cooperation of the first elastic element and the second elastic element.

[0009] Preferably, a metal strip is provided along the length of the conduit, the metal strip being used to maintain the curvature of the conduit after adjustment.

[0010] Preferably, the elastic element is a spring.

[0011] Preferably, the connector includes a connecting part and an operating part, the connecting part is located inside the second mounting part, and the connecting part has a movable distance H from the inner wall of the second mounting part, wherein H is a number greater than 0.

[0012] Preferably, when the first elastic element is in a stretched state, the second elastic element is in a compressed state.

[0013] Preferably, the catheter tip of the catheter body is used to install a connector, which is used to acquire medical parameters, including carbon dioxide value and pH value.

[0014] Preferably, it further includes: a fiber scope, the first mounting part being used to mount the fiber scope, the fiber scope being used to collect image information of the part of the human body into which the intubation tube is inserted during emergency intubation, the fiber scope including a lens, a data cable and a first airbag sleeved on the data cable, the first airbag including a first state after inflation and a second state when not inflated.

[0015] Preferably, the distal end of the catheter body is further provided with a drug injection assembly, a second balloon for obstructing the esophagus, and a second inflation assembly for inflating the second balloon.

[0016] Preferably, the first mounting part includes a first fixing part and a first extension part, the fiber endoscope is detachably connected to the catheter body, and the lens of the fiber endoscope abuts against the front end of the first fixing part. The data cable of the fiber endoscope is fixed in the first extension part through the first airbag in the first state, and the data cable of the fiber endoscope is separated from the first extension part through the first airbag in the second state.

[0017] Preferably, the first mounting portion includes a limiting portion and a light-transmitting portion, the lens of the lens abuts against the light-transmitting portion, and the lens body of the lens is adapted to the limiting portion.

[0018] In summary, the beneficial effects of the present invention are as follows:

[0019] The present invention provides an emergency catheter with adjustable curvature, comprising a catheter body including a first mounting portion and a second mounting portion, both arranged along the length of the catheter body. The second mounting portion contains an elastic element that can change the curvature of the catheter body. Because the second mounting portion of the catheter body contains this elastic element, medical personnel can quickly adjust the curvature of the catheter to adapt to different patients' airway structures, significantly reducing the time consumed during intubation. Adjusting the curvature by compressing or stretching the elastic element through a connector avoids the need for repeated guidewire removal and reinsertion. The design of the elastic element ensures the stability of the catheter during insertion, reducing the risk of the guidewire bending due to resistance. Simultaneously, the accuracy of intubation is improved because the curvature can be precisely adjusted. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0021] Figure 1 This is a schematic diagram of the emergency catheter with arc adjustment based on real-time image in Example 1;

[0022] Figure 2 for Figure 1 A schematic diagram of the cross-section of the tip of the emergency catheter shown in the image;

[0023] Figure 3 for Figure 1 A schematic diagram of the installation cross-section of the elastic element of the emergency catheter shown in the figure;

[0024] Figure 4This is a flowchart illustrating the emergency intubation method in Example 2;

[0025] Figure 5 This is a schematic diagram of the process of acquiring target video images using a fiber optic microscope in Example 2;

[0026] Figure 6 This is a schematic diagram of the process for obtaining the position information of the glottis in Example 2;

[0027] Figure 7 This is a schematic diagram of the process for adjusting the curvature of the catheter in Example 2;

[0028] Figure 8 This is a schematic diagram of the process of inserting the endotracheal tube into the trachea in Example 2;

[0029] Figures 1 to 8 The attached figure labels are:

[0030] 1. Catheter body; 11. Elastic element; 111. Second elastic element; 112. First elastic element; 113. Spring; 114. Connecting part; 115. Operating part; 12. First mounting part; 121. First extension part; 122. First fixing part; 1221. Limiting part; 1222. Light-transmitting part; 13. Second mounting part; 131. Lower mounting part; 132. Upper mounting part; 14. Drug injection assembly; 15. Second inflation assembly; 16. Second airbag; 17. Catheter tip; 2. Fiberoptic endoscope; 21. Lens; 211. Lens lens; 212. Lens body; 22. Data cable; 23. First airbag; 24. First inflation assembly. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Where there is no conflict, the various features of this invention and its embodiments can be combined with each other, all of which are within the scope of protection of this invention.

[0032] Example 1

[0033] Existing endotracheal tubes or gastric tubes require multiple intubations and constant adjustment of their angles to insert the endotracheal tube into the trachea or bronchus, or the gastric tube into the stomach. This procedure is difficult, time-consuming, and not conducive to timely treatment of patients.

[0034] This invention combines structural and methodological approaches. By acquiring images of the internal organs during intubation, the curvature of the endotracheal or gastric tube can be adjusted. The curvature of the tube is refined during intubation, allowing gas to be delivered in a single procedure via the endotracheal tube into the trachea or bronchi, or via the gastric tube into the stomach. This improves intubation accuracy, eliminates the need for multiple trial intubations, increases efficiency, and reduces patient discomfort. This invention primarily uses the endotracheal tube as an example to illustrate its intent; the same principle applies to the gastric tube, as the structure and method are largely the same.

[0035] Please see Figure 1 , Figure 1This is a schematic diagram of the emergency catheter based on real-time image-adjustable curvature according to the present invention. It includes a catheter body 1 and a fiberscope 2. The catheter body 1 includes a first mounting part 12 and a second mounting part 13, both arranged along the length of the catheter body 1. The first mounting part 12 is used to mount the fiberscope 2, which is used to acquire image information of the human body during emergency intubation. The second mounting part 13 contains an elastic element 11 that can change the curvature of the catheter body 1. The elastic element 11 includes an elastic component (such as a spring 113 or an elastic sheet preferred in this embodiment) and a connector. The connector includes a connecting part 114 and an operating part 115. One end of the elastic component (taking spring 113 as an example) is fixed to the connecting part 114. On the second mounting part 13, the other end of the spring 113 is connected to the connector. According to the image information, the bending arc of the catheter is adjusted by compressing or stretching the spring through the connector. The catheter end 17 of the catheter body 1 is used to install the connector. The carbon dioxide value, pH value, etc. can be viewed through the connector. It should be noted that viewing the patient's specific parameters (such as carbon dioxide, pH value, etc.) through the connector is existing technology. The connector is a precision device used by doctors to view the patient's condition with the catheter. This device is existing equipment and is not an improvement point in this article, so it will not be described in detail here. Thus, it can be determined whether the catheter body 1 is inserted into the trachea or bronchus of the human body. At the same time, the distal end of the catheter body 1 is also provided with a drug injection component 14, a second balloon 16 for obstructing the esophagus, and a second inflation component for inflating the second balloon.

[0036] It should be noted that the conduit is made of a material that can maintain a certain deformation, or has a component that can maintain deformation along the length of the conduit, such as a metal strip. After the bending curvature of the conduit is adjusted by the elastic element, the conduit itself or by relying on the metal strip can maintain the adjusted bending curvature.

[0037] In one embodiment, the connecting part 114 is located inside the second mounting part 13, and the connecting part 114 has an active distance H (H is a number greater than 0) from the inner wall of the second mounting part 13. Thus, when the spring 113 is stretched or compressed by the operating part 115, the connecting part 114 will not directly contact the catheter body 1, thereby ensuring that the bending arc of the catheter body 1 can be adjusted from the front end of the catheter body 1, and improving the bending arc adjustment efficiency.

[0038] In one embodiment, the fiber mirror 2 includes a lens 21, a data cable 22, and a first airbag 23 sleeved on the data cable. The first airbag 23 includes a first state after inflation and a second state when it is not inflated.

[0039] In one embodiment, the first mounting portion 12 includes a first fixing portion 122 and a first extension portion 121. The fiber endoscope 2 is detachably connected to the catheter body 1, and the lens 21 of the fiber endoscope 2 abuts against the front end of the first fixing portion 13. The data cable 22 of the fiber endoscope 2 is fixed in the first extension portion 121 through the first airbag 23 in the first state, and the data cable 22 of the fiber endoscope 2 is separated from the first extension portion 121 through the first airbag 23 in the second state.

[0040] In one embodiment, the first mounting portion 121 includes a limiting portion 1221 and a light-transmitting portion 1222, the lens 211 of the lens 21 abuts against the light-transmitting portion 1222, and the lens body 212 of the lens 21 is adapted to the limiting portion 1221.

[0041] Specifically, since the catheter is a disposable item, the fiberscope 2 and the catheter body 1 are designed as detachable structures to enable the recycling of the fiberscope 2. Specifically, a second airbag 16 is installed on the fiberscope 2. When the second airbag 16 is in the second state, the fiberscope 2 is installed in the first mounting part 12, and the lens 21 of the fiberscope 2 is embedded in the first fixing part 122. The lens 211 of the lens 21 abuts against the light-transmitting part 1222, thereby acquiring image information through the light-transmitting part 1222. After the fiberscope 2 is installed in the first mounting part 12, the first airbag 23 is inflated by the first inflation component 24 to put the first airbag 23 in the first state. After adjusting the curvature of the catheter body 1, the first airbag 23 is deflated to put it in the second state, facilitating the removal of the fiberscope 2, thus enabling the recycling of the fiberscope 2. Then, the catheter body 1 is inserted into the bronchus or trachea of ​​the human body, and the insertion status is confirmed by checking the carbon dioxide value, pH value, etc., through the connector.

[0042] In one embodiment, the second mounting portion 13 includes an upper mounting portion 132 and a lower mounting portion 131 disposed opposite to each other along the length direction of the catheter body 1. Thus, the elastic member 11 includes a first elastic member 112 installed in the upper mounting portion 132 and a second elastic member 111 installed in the lower mounting portion 131. The bending curvature of the catheter body 1 is adjusted by the cooperation of the first elastic member 112 and the second elastic member 111. Specifically, when the first elastic member 112 is in a stretched state, the second elastic member 111 is in a compressed state, thereby achieving stretching on one side and compression on the other side of the catheter body 1, improving the bending curvature adjustment efficiency of the catheter body 1. Furthermore, stretching is the main method, and compression is secondary. This can prevent the connecting portion 114 itself from undergoing excessive bending deformation while the catheter body 1 fails to bend, ensuring the success rate of adjusting the bending curvature of the catheter body 1.

[0043] This embodiment provides an emergency catheter with adjustable curvature based on real-time images. The emergency catheter includes a catheter body and a fiber optic endoscope mounted on the catheter body. The fiber optic endoscope allows real-time visualization of the human body, facilitating doctors' understanding of the catheter's movement within the body. Additionally, an elastic element is provided along the length of the catheter body. This elastic element includes a connector and an elastic component with one end connected to the connector and the other end fixed to the catheter body. Doctors can directly adjust the curvature of the catheter inside the body by stretching or compressing the elastic element, eliminating the need for multiple external adjustments and making the operation simpler and more convenient.

[0044] Example 2

[0045] Please see Figure 5 , Figure 5 This is a flowchart illustrating an emergency intubation method for an emergency catheter based on real-time image-adjusted curvature, as described in Embodiment 2 of the present invention. The emergency intubation method includes:

[0046] S1: Acquire the target video image of the internal tissue of the human body corresponding to the catheter tip, which is acquired in real time by the fiberscope;

[0047] Specifically, the target video image refers to the video image captured by a fiberoptic endoscope after the catheter enters the human body (such as the trachea or stomach) through the mouth or nose.

[0048] In one embodiment, S1 includes:

[0049] S11: Obtain the status information of the first airbag after the fiber endoscope is installed in the catheter, wherein the status information includes a first state after the first airbag is inflated and a second state after the first airbag is not inflated;

[0050] S12: If the status information of the first airbag is the first state, then the catheter is delivered at the first speed, and the fiber endoscope is controlled to acquire the target video image in real time.

[0051] Specifically, when emergency intubation is required, a fiberoptic endoscope is inserted into the fiberoptic endoscope mounting section of the catheter. Then, the first airbag wrapped around the data cable of the fiberoptic endoscope is inflated, allowing the fiberoptic endoscope to be fixed to the catheter via the first airbag. The lens of the fiberoptic endoscope follows the tip of the catheter into the target's body and acquires real-time video images of the target's body. Before the glottis is detected, the speed at which the catheter enters the body is the first speed. After the glottis is detected, the speed at which the catheter enters the glottis is the second speed. The first speed is greater than the second speed, and both are safe speeds. This can shorten the time for glottis location detection and improve intubation efficiency.

[0052] S2: Analyze each frame of the target video to determine the location information of the glottis in the human body;

[0053] Specifically, each frame of the target video captured by the fiberoptic endoscope is subjected to target detection to determine the position information of the glottis. Based on the position information of the glottis, the curvature of the catheter is adjusted directly inside the human body so that the catheter can be accurately inserted into the glottis.

[0054] In one embodiment, S2 includes:

[0055] S21: Analyze each frame of the target video image to determine the initial glottal image corresponding to the first appearance of the glottis;

[0056] Specifically, as the fiberscope follows the catheter deeper into the human body, it analyzes real-time images. When the glottis first appears in the image captured by the fiberscope, this image is recorded as the initial glottis image. The glottis information in this image is obtained, including but not limited to the shape of the glottis, the imaging ratio of the glottis in the image, and the position of the glottis image in the image.

[0057] S22: Based on the initial glottic image, continue to deliver the conduit to the preset position at a second speed less than the first speed;

[0058] S23: When the tip of the catheter reaches the preset position, the position of the glottis in the current image frame is obtained to determine the position information of the glottis in the human body.

[0059] Specifically, after the initial location of the glottis is detected, the speed of the catheter insertion is reduced, and it continues to advance slowly at a second speed. The image information of the glottis is analyzed in real time to insert the catheter into a preset position. The preset position is the location of the catheter when the shape and / or imaging ratio and / or imaging position of the glottis in the image meet the requirements. This preset position is the final position of the fiberscope entering the human body. The position information of the glottis at this time is obtained. In addition, the position information of the glottis in the human body can be obtained by: after obtaining the initial image of the glottis, using the more common existing technology to obtain several frames of changing images and then using visual depth measurement technology.

[0060] S3: Based on the position information of the glottis, the bending arc of the conduit is adjusted by the elastic element of the conduit to obtain the target bending arc that meets the requirements of the relative position of the conduit and the glottis;

[0061] In one embodiment, S3 includes:

[0062] S31: Based on the position information of the glottis, the bending arc of the conduit is obtained by compressing or stretching the elastic element of the elastic member through the connector of the elastic member;

[0063] S32: Based on the curvature and the position information of the glottis, simulate the insertion path of the catheter to obtain the simulated insertion path;

[0064] S33: Repeat S31 to S32 until the required intubation simulation path is obtained, and output the curvature of the catheter corresponding to the required intubation simulation path as the target curvature.

[0065] Specifically, once the position information of the glottis in the image meets the requirements, the curvature of the catheter is adjusted by elastic elements. Specifically, this is done by stretching the elastic element (spring) of the first elastic element and compressing the elastic element (spring) of the second elastic element, and / or by compressing the spring of the first elastic element and stretching the spring of the second elastic element several times. After each curvature adjustment is completed, the current curvature of the catheter is simulated on the computer to determine whether the current curvature meets the insertion requirements, and finally a curvature that meets the requirements is obtained.

[0066] S4: Maintain the target curvature and control the catheter to be inserted into the trachea or bronchus of the human body through the glottis.

[0067] In one embodiment, S4 includes:

[0068] S41: Obtain a prompt message indicating that the target curvature adjustment is complete;

[0069] Specifically, once the curvature of the catheter is adjusted, a prompt message is generated. This prompt message can be used to control the removal of the fiberscope and / or to perform the final intubation operation of inserting the catheter into the bronchus or trachea.

[0070] S42: According to the prompt information, deflate the first balloon of the fiberscope and generate an intubation signal at the same time as the fiberscope is removed;

[0071] In one embodiment, to reduce the patient's suffering during emergency treatment, shorten the overall emergency treatment time, and improve emergency treatment efficiency, step S42 further includes:

[0072] S421: Obtain the target curvature of the catheter;

[0073] S422: Based on the target curvature, control the duration of deflation of the first airbag under the condition of minimum displacement of the fiberscope; the minimum displacement condition here is that the catheter and the fiberscope are separated from each other.

[0074] S423: Based on the deflation duration, upon receiving the prompt message, the first airbag is activated to begin deflation and the deflation duration is reached;

[0075] S424: When the deflation duration is reached, the fiber endoscope is moved out while the first airbag continues to deflate.

[0076] S425: An intubation signal is generated when it is determined that the fiberscope has been removed.

[0077] Specifically, after adjusting the curvature of the catheter, the fiberscope needs to be removed from the body for future use. To avoid changes in the curvature of the catheter due to excessive contact between the fiberscope and the catheter during removal, the fiberscope needs to be separated from the catheter wall as much as possible to reduce friction (this is the origin of the minimum removal condition of this invention). In order to remove the fiberscope without affecting the curvature of the catheter, the first cuff needs to be deflated to separate the first cuff from the catheter, thereby achieving complete separation of the fiberscope from the catheter. If the fiberscope is removed after the first cuff has been completely deflated, it will take a long time, which is not conducive to subsequent emergency intubation and patient resuscitation. In situations where gas needs to be delivered to the patient's trachea, the time for patient resuscitation is calculated in seconds. A slight oversight can lead to respiratory distress and death. Therefore, this invention has a significant advantage in gaining more time for emergency patient resuscitation. In a modified embodiment, to further shorten the time difference between removing the fiberscope and inserting the cannula, it is also possible to further consider appropriately adjusting the deflation duration for different patients under different target curvatures, provided that patient safety is ensured. For example, if the target curvature is too large, it is necessary to consider not only meeting the minimum separation conditions between the catheter and the fiberscope, but also the patient's comfort caused by the difficulty of removing the fiberscope. Therefore, a correction value can be added to the deflation duration, which can be set based on multiple data obtained in clinical practice.

[0078] S43: Based on the intubation signal, maintain the target curvature to control the insertion of the catheter into the trachea or bronchus of the human body through the glottis.

[0079] Specifically, according to the prompt information, the first airbag of the fiberscope is deflated to disengage the first airbag from the first mounting part, making it easier to remove the fiberscope. Once the fiberscope is removed, an intubation signal is generated. Then, the final curvature is maintained to complete the catheter intubation operation, so that the catheter can be accurately inserted into the bronchus or trachea.

[0080] The emergency intubation method provided in this embodiment includes using a fiberoptic endoscope that follows the catheter into the human body to obtain a real-time video image of the target internal tissue corresponding to the tip of the catheter; analyzing each frame of the image to find the location information of the glottis; after determining the location information of the glottis, under the real-time image provided by the fiberoptic endoscope, stretching and / or compressing the elastic element on the catheter to adjust the curvature of the catheter; after obtaining the target curvature, controlling the catheter to be inserted into the bronchus or trachea of ​​the human body in one go through the glottis, avoiding secondary damage caused by multiple attempts to intubate after external adjustment, and improving the speed and accuracy of emergency intubation, which helps medical staff to gain emergency time.

[0081] In summary, the aforementioned emergency catheter and emergency intubation method based on real-time image-based curvature adjustment provided by the embodiments of the present invention include a catheter body and a fiberoptic endoscope mounted on the catheter body. An elastic element is also provided along the length of the catheter body. This elastic element includes a connector and an elastic component with one end connected to the connector and the other end fixed to the catheter body. During the insertion of the catheter into the human body, the fiberoptic endoscope acquires real-time image information of the human body. By performing target detection on each frame of the image, the position information of the glottis inside the human body is determined. After determining the position information of the glottis, the elastic component is stretched or compressed by the connector to adjust the curvature of the catheter inside the human body. This ensures that the curvature of the catheter can be inserted into the bronchus or trachea in one attempt, eliminating the need for multiple external attempts to bend and adjust the catheter. This improves the speed and accuracy of emergency intubation, helping medical personnel gain valuable emergency time.

[0082] It should be clarified that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of the present invention.

[0083] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this invention are programs or code segments used to perform the required tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 or all of the technical features; and these 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 the present invention.

Claims

1. An emergency catheter with an adjustable curvature, characterized in that, The device includes a catheter body, which includes a first mounting portion and a second mounting portion. Both the first mounting portion and the second mounting portion are arranged along the length direction of the catheter body. The second mounting portion is provided with an elastic element that can change the curvature of the catheter body. The elastic element includes an elastic component and a connector. The elastic component is compressed or stretched by the connector. One end of the elastic component is fixed to the second mounting portion, and the other end of the elastic component is connected to the connector. The second mounting portion includes an upper mounting portion and a lower mounting portion disposed opposite to each other along the length direction of the catheter body. The elastic element includes a first elastic element installed in the upper mounting portion and a second elastic element installed in the lower mounting portion. The bending curvature of the catheter body is adjusted by the cooperation of the first elastic element and the second elastic element. The elastic element is a spring. When the first elastic element is in a stretched state, the second elastic element is in a compressed state. The connecting parts corresponding to the first elastic element and the second elastic element each include a connecting part and an operating part. The connecting part is located in the second mounting portion and has a movable distance H from the inner wall of the second mounting portion, where H is a number greater than 0. The spring of the first elastic element is stretched by the connecting part of the first elastic element and compressed by the connecting part of the second elastic element, and / or the spring of the first elastic element is compressed by the connecting part of the first elastic element and stretched by the connecting part of the second elastic element.

2. The emergency catheter with adjustable curvature according to claim 1, characterized in that, A metal strip is provided along the length of the conduit, and the metal strip is used to maintain the curvature of the conduit after adjustment.

3. The emergency catheter with adjustable curvature according to any one of claims 1-2, characterized in that, The catheter tip of the catheter body is used to install a connector, which is used to acquire medical parameters, including carbon dioxide level and pH level.

4. The emergency catheter with adjustable curvature according to claim 3, characterized in that, Also includes: A fiber optic endoscope, wherein the first mounting part is used to mount the fiber optic endoscope, the fiber optic endoscope is used to collect image information of the part of the human body into which the intubation tube is inserted during emergency intubation, the fiber optic endoscope includes a lens, a data cable and a first airbag sleeved on the data cable, the first airbag includes a first state after inflation and a second state when it is not inflated.

5. The emergency catheter with adjustable curvature according to claim 4, characterized in that, The distal end of the catheter body is also provided with a drug injection assembly, a second balloon for obstructing the esophagus, and a second inflation assembly for inflating the second balloon.

6. The emergency catheter with adjustable curvature according to claim 4, characterized in that, The first mounting part includes a first fixing part and a first extension part. The fiber endoscope is detachably connected to the catheter body, and the lens of the fiber endoscope abuts against the front end of the first fixing part. The data cable of the fiber endoscope is fixed in the first extension part through the first airbag in the first state, and the data cable of the fiber endoscope is separated from the first extension part through the first airbag in the second state.

7. The emergency catheter with adjustable curvature according to claim 6, characterized in that, The first mounting part includes a limiting part and a light-transmitting part, the lens of the lens abuts against the light-transmitting part, and the lens body of the lens is adapted to the limiting part.

Images