A painless endotracheal intubation

Abstract

This application discloses a painless anesthesia endotracheal intubation method, relating to the field of endotracheal intubation technology. It includes an endotracheal tube, a bite block assembly, and a guide tube. The endotracheal tube includes a tube body, with a tube tip integrally formed at one end. The surface of the tube tip is machined into a spherical shape. The surface of the endotracheal tube is coated with a super-lubricating layer and an analgesic layer, with the analgesic layer coated on the outer surface of the super-lubricating layer. The bite block assembly includes a connecting tube head, with a seat integrally formed at one end. A connecting tube head is integrally formed on the surface of the seat. A fixing seat is integrally formed on the outer wall of one side of the connecting tube head, and a pressure seat is movably connected to the other side of the connecting tube head. The key technical point is that, by utilizing the endotracheal tube composed of the tube tip and tube body, after the guide tube is withdrawn from the inside of the endotracheal tube, the endotracheal tube can perform independent movement within the patient's body based on the lubricating layer, the analgesic layer on the surface of the endotracheal tube, and the spherical design of the tube tip.

Description

Technical Field

[0001] This utility model relates to the field of endotracheal intubation technology, specifically a painless anesthesia endotracheal intubation method. Background Technology

[0002] Endotracheal intubation is the most effective and reliable method for establishing an artificial airway. It involves inserting a specially designed endotracheal tube through the mouth or nose, via the glottis, into the trachea. This technique provides optimal conditions for relieving airway obstruction, ensuring airway patency, clearing airway secretions, preventing aspiration, and providing assisted or controlled breathing. It is commonly used for endotracheal anesthesia and the resuscitation of critically ill patients.

[0003] Endotracheal intubation is mainly divided into oral direct visualization intubation, nasal direct visualization intubation, nasal blind intubation, and awake endotracheal intubation. Oral direct visualization intubation involves exposing the glottis under direct vision with a laryngoscope, inserting a stylet with an externally attached catheter into the patient's glottis, pushing the catheter tip into the glottis, removing the stylet, and then inserting the catheter into the trachea. Nasal direct visualization intubation involves instilling liquid paraffin into the nasal cavity before intubation, applying a lubricant to the catheter tip, and for awake patients, topical anesthesia of the nasal cavity is required. The catheter is advanced to the distance from the nasal ala to the earlobe (equivalent to the distance from the nostril to the retropharyngeal cavity), and the laryngoscope is exposed using the left hand. The catheter is then further advanced into the glottis with the right hand; if difficulty arises, the catheter tip can be grasped with intubation forceps and pushed into the glottis. Nasal blind intubation involves inserting the endotracheal tube into the trachea through the nasal cavity under non-direct visualization conditions. Awake endotracheal intubation mainly involves using 1% tetracaine spray to apply topical anesthesia to the throat and trachea, and performing endotracheal intubation while the patient is conscious.

[0004] The method of endotracheal intubation, which involves inserting the stylet into the patient's body and then inserting the external catheter into the patient's glottis, is prone to problems such as one end of the catheter not being properly installed or accidental movement of the catheter. Due to the limitation that the stylet cannot move independently within the patient's body, it is not advisable to rely solely on the catheter to complete the corresponding position adjustment work. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, this application provides a painless anesthesia endotracheal intubation. By using an endotracheal tube composed of a tube tip and a tube body, the endotracheal tube can perform independent movements in the patient's body after the guide tube is withdrawn from the inside of the endotracheal tube. Based on the lubrication layer, analgesia layer and spherical design of the tube tip on the surface of the endotracheal tube, the endotracheal tube can achieve the technical effect of adjusting the position and state of the endotracheal tube within a small range.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A painless anesthesia endotracheal intubation device includes an endotracheal tube, a bite block assembly, and a guide stylet, wherein the bite block assembly is disposed at one end of the endotracheal tube; and

[0008] The guide tube is movably connected to the inside of the endotracheal tube;

[0009] The endotracheal tube includes a tube body, one end of which is integrally formed with a tube head. One end of the tube head is machined with a beveled surface to form an elliptical cross-section. One end of the tube body and the tube head is bent and forms an obtuse angle in the projection plane to simulate the state of the guide tube core being bent and installed into the patient's body.

[0010] The endotracheal tube is coated with a super-slippery layer and an analgesic layer. The analgesic layer is coated on the outside of the super-slippery layer. The guide tube is guided by a laryngoscope and inserted into the patient's body. The guide tube supports the endotracheal tube from the outside of the guide tube so that one end of the tube head extends into the patient's trachea. The tube head guides and supports the movement of the tube body in the patient's body.

[0011] Preferably, the surface of one end of the catheter tip can also be processed into a spherical surface and smoothly transition to the surface of the catheter body. The catheter tip moves within the patient's body under the premise that the endotracheal tube is supported by the spherical surface without the guidance of a guide core.

[0012] Preferably, the dental pad assembly includes an adapter tube, one end of which is integrally formed with a seat, the surface of which is integrally formed with a connecting tube, a fixing seat integrally formed on the outer wall of one side of the connecting tube, and a pressure seat movably connected to the other side of the connecting tube. The surface of the fixing seat located on the side of the connecting tube is machined with an adaptation groove. Both the surface of the pressure seat and the fixing seat are machined with occlusal grooves, and the patient bites into the fixing seat and the pressure seat through the two occlusal grooves, so that the pressure seat is fastened to the outside of the connecting tube.

[0013] Preferably, the connecting tube head has a limiting groove machined inside the pressure seat on one side, and rubber strips are machined on the inner walls of both ends of the fitting groove; the two rubber strips are arranged symmetrically about the interlocking groove, and when the pressure seat is fastened to the outside of the connecting tube head, the rubber strips are stretched and pressed on the surface of the guide tube body located inside the dental pad assembly.

[0014] Preferably, the pressure seat has an observation window inside, which connects the inside of the engagement groove and the inside of the fitting groove.

[0015] Preferably, guide rods are machined on the surfaces of the corners at both ends of the pressure seat, and a ball head is machined on one end of the guide rod; a groove parallel to the axis of the guide rod is machined inside the ball head, which supports the guide rod to deform and insert the ball head into the inside of the corner of the fixed seat, and based on the elastic reset of the ball head, the one end of the guide rod is prevented from disengaging from the inside of the fixed seat.

[0016] Preferably, the adapter head is provided with an adapter, and one end of the catheter body extends into the interior of the adapter head through the connecting tube head. The adapter fills the gap between the adapter head and the outer wall of the catheter body, and maintains the conventional connection function of one end of the fixing seat.

[0017] Preferably, the adapter includes a gasket, one end of which is machined with a retaining ring, and the other end of which is machined with a thin film sleeve; one side of the retaining ring is fastened to one end of the catheter body, and the thin film sleeve is fitted into the inside of the adapter and drives the gasket to be fitted onto the outside of the catheter body.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] First, this utility model provides a painless anesthesia endotracheal intubation method. By using an endotracheal tube composed of a tube tip and a tube body, the endotracheal tube can perform independent functions within the patient's body after the guide tube is withdrawn from the inside of the endotracheal tube. Based on the lubrication layer and analgesia layer on the surface of the endotracheal tube and the spherical or oblique cut surface design of the tube tip, the endotracheal tube can perform independent functions within the patient's body, which is conducive to small-range adjustment of the position and state of the endotracheal tube.

[0020] Secondly, this utility model provides a painless anesthesia endotracheal intubation method. By having the pressure seat and fixation seat on the bite pad assembly engaged by the patient's teeth, and by fastening the pressure seat to the outside of the connecting tube head, the rubber strip is stretched and pressed against the surface of the tube body located at one end inside the bite pad assembly. The friction between the rubber strip and the surface of the tube body restricts the movement of the tube body inside the connecting tube head. At the same time, the endotracheal tube can be moved independently of the bite pad assembly according to actual needs, and the endotracheal tube is fixed in a fixed state by using the fixation bite pad assembly. Attached Figure Description

[0021] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0022] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the endotracheal tube of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure of the endotracheal tube and bite block assembly of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the pressure seat of this utility model;

[0026] Figure 6 This is a cross-sectional view of the dental pad assembly of this utility model.

[0027] Reference numerals: 1. Guide tube; 2. Endotracheal tube; 201. Tube tip; 202. Tube body; 3. Biting pad assembly; 301. Adapter tube tip; 302. Seat plate; 303. Fixing seat; 304. Guide rod; 305. Rubber strip; 306. Pressure seat; 307. Connecting tube tip; 308. Ball head; 4. Limiting groove; 5. Adapting groove; 6. Engagement groove; 7. Observation window; 8. Adapter; 801. Buckle ring; 802. Membrane sleeve; 803. Gasket ring. Detailed Implementation Example

[0028] A painless endotracheal intubation under anesthesia, such as Figure 1 As shown, it includes an endotracheal tube 2, a bite block assembly 3 disposed at one end of the endotracheal tube 2, and a guide tube core 1 movably connected to the inside of the endotracheal tube 2. The endotracheal tube 2 includes a tube body 202, and a tube head 201 is integrally formed at one end of the tube body 202.

[0029] The guide tube head 201 has a beveled surface at one end, forming an elliptical cross-section. When the guide tube 1 is guided by a laryngoscope and inserted into the patient's body, the endotracheal tube 2 is inserted into the patient's trachea from outside the guide tube 1, so that it is located at one end of the guide tube head 201. The guide tube head 201 can guide and support the movement of the tube body 202 in the patient's body.

[0030] Secondly, by bending one end of the connection between the catheter body 202 and the catheter tip 201 at an obtuse angle in the projection plane, the state of the guide tube 1 being bent and installed in the patient's body can be simulated. When the guide tube 1 inside the endotracheal tube 2 is removed, it can support the endotracheal tube 2 to move in the patient's body without the guidance of the guide tube 1, and is not affected by whether there is a guide tube 1 inside the endotracheal tube 2 (the end of the catheter tip 201 tends to move outward from it and the outside of the catheter body 202).

[0031] Furthermore, the surface of the endotracheal tube 2 is coated with a super-lubricating layer and an analgesic layer. The analgesic layer is coated on the outside of the super-lubricating layer. By using super-lubricating surface modification technology, hydrophilic polymers are organically combined. Since the hydrophilic polymers form a lubricating layer when they come into contact with water, the analgesic layer contains a local anesthetic (formed by dissolving one of lidocaine, ropivacaine, tetracaine, or bupivacaine in one or more of dichloromethane, acetone, butanone, isopropanol, dimethylformamide, methylpyrrolidone, or polyoxyethylene). The analgesic layer can slowly release the drug, thereby achieving the effect of local anesthesia. All of the above are known technologies.

[0032] At the same time, with the assistance of the analgesic layer and the lubricating layer, the endotracheal tube 2 can be guided by the tube tip 201, which can minimize the discomfort caused to the patient by slight adjustments made in the patient's body after the endotracheal tube 2 is installed in the patient's larynx.

[0033] This utility model provides a painless anesthesia endotracheal intubation method. The endotracheal tube 2, which is composed of a tube tip 201 and a tube body 202, guides the endotracheal tube 2 to be installed in the patient's larynx when the guide tube 1 is inserted into the endotracheal tube 2. The tube body 202 is pushed into the patient's body from the outside of the guide tube 1. With the help of the lubricating layer and analgesic layer on the outer wall of the endotracheal tube 2, discomfort to the patient can be avoided.

[0034] Meanwhile, when the guide tube 1 is pulled out from inside the endotracheal tube 2 and the installation and fixation of the endotracheal tube 2 is completed, if one end of the tube is not installed in place or the tube moves unexpectedly, the lubricating layer, analgesic layer and spherical design of the tube tip 201 on the surface of the endotracheal tube 2 can enable the endotracheal tube 2 to move independently in the patient's body, which is conducive to adjusting the insertion status of the endotracheal tube 2 within a small range. Example

[0035] Based on Example 1, such as Figure 2 and Figure 3 As shown, this embodiment illustrates other structural configurations of the endotracheal tube 2, including a spherical surface on the tube head 201 that smoothly transitions to the surface of the tube body 202.

[0036] When the guide tube 1 is guided by a laryngoscope and inserted into the patient's body, and the endotracheal tube 2 is inserted into the patient's trachea from outside the guide tube 1, so that one end of the tube head 201 is inserted into the patient's trachea, the tube head 201 can guide the support tube body 202 to move in the patient's body.

[0037] Meanwhile, by bending one end of the connection between the catheter body 202 and the catheter tip 201 at an obtuse angle in the projection plane, the state of the guide tube 1 being bent and installed in the patient's body can be simulated. When the guide tube 1 inside the endotracheal tube 2 is removed, it can support the endotracheal tube 2 to move in the patient's body without the guidance of the guide tube 1, and is not affected by whether there is a guide tube 1 inside the endotracheal tube 2. Moreover, since the diameter of the catheter tip 201 is larger than the diameter of the catheter body 202, when the catheter tip 201 moves in the patient's body, it can be guided by the spherical surface of the catheter tip 201, avoiding the sharp edges on the endotracheal tube 2 from scratching the patient's internal cavities. Example

[0038] Based on Examples 1 and 2, such as Figure 1 , Figures 4 to 6As shown, this embodiment is the specific structure of the dental pad assembly 3. The dental pad assembly 3 includes an adapter pipe head 301. One end of the adapter pipe head 301 is integrally formed with a seat plate 302. The surface of the seat plate 302 is integrally formed with a connecting pipe head 307. A fixing seat 303 is integrally formed on the outer wall of one side of the connecting pipe head 307. A pressure seat 306 is movably connected to the other side of the connecting pipe head 307. The surface of the fixing seat 303 located on the side of the connecting pipe head 307 is machined with an adaptation groove 5.

[0039] like Figure 4 and Figure 5 As shown, the connecting pipe head 307 has a limiting groove 4 machined inside on one side of the pressure seat 306, and rubber strips 305 are machined on the inner walls at both ends of the adapter groove 5.

[0040] Among them, by processing occlusal grooves 6 on the surfaces of both the pressure seat 306 and the fixing seat 303, when the endotracheal tube 2 is inserted into the patient's body and the bite pad assembly 3 is placed against the patient's mouth, the patient bites the fixing seat 303 and the pressure seat 306 through the two occlusal grooves 6, so that the pressure seat 306 can be fastened to the outside of the connecting tube head 307.

[0041] Meanwhile, since the two rubber strips 305 are symmetrically arranged about the bite groove 6, when the pressure seat 306 is fastened to the outside of the connecting tube head 307, the rubber strips 305 can be stretched and pressed against the surface of the guide tube body 202 located inside the dental pad assembly 3. With the help of the friction between the rubber strips 305 and the surface of the guide tube body 202, the movement of the guide tube body 202 inside the connecting tube head 307 can be restricted (rubber products are usually made of natural rubber or synthetic rubber, and these rubber materials contain a certain amount of gum, which makes the rubber products sticky).

[0042] Secondly, to facilitate observation of whether the two rubber strips 305 overlap on one side of the pressure seat 306, such as... Figure 4 As shown, the pressure seat 306 has an observation window 7 machined inside. By connecting the inside of the engagement groove 6 and the inside of the fitting groove 5 through the observation window 7, the inside of the pressure seat 306 can be observed through the observation window 7.

[0043] Furthermore, to facilitate the connection between the fixing base 303 and the pressure base 306, such as... Figure 5 and Figure 6 As shown, guide rods 304 are machined on the surfaces of the corners at both ends of the pressure seat 306. A ball head 308 is machined on one end of the guide rod 304. By machining a groove parallel to the axis of the guide rod 304 inside the ball head 308, the guide rod 304 is supported to drive the ball head 308 to deform and insert into the inside of the corner of the fixed seat 303. Based on the elastic reset of the ball head 308, the one end of the guide rod 304 is restricted from disengaging from the inside of the fixed seat 303, thus completing the connection between the fixed seat 303 and the pressure seat 306.

[0044] In some examples, to facilitate filling the gap between the adapter 301 and the outer wall of the catheter body 202, and to prevent leakage between the bite block assembly 3 and the endotracheal tube 2, such as... Figure 4 and Figure 5 As shown, the adapter 8 is provided inside the adapter 301. The adapter 8 includes a washer 803. One end of the washer 803 is machined with a retaining ring 801, and the other end of the washer 803 is machined with a thin film sleeve 802. When one end of the conduit body 202 is inserted into the adapter 301 through the connecting tube head 307, one side of the retaining ring 801 is fastened to one end of the conduit body 202, the thin film sleeve 802 is fitted into the interior of the adapter 301, and the washer 803 is fitted onto the outside of the conduit body 202. Finally, the adapter 8 fills the space between the conduit body 202 and the adapter 301, and maintains the normal connection function of one end of the fixing seat 303.

[0045] This utility model discloses a painless anesthesia endotracheal intubation method. By attaching a bite pad assembly 3 to one end of the endotracheal tube 202, when the endotracheal tube 2 is installed in the patient's body, the pressure seat 306 and the fixing seat 303 on the bite pad assembly 3 are engaged by the patient's teeth, so that the pressure seat 306 is fastened to the outside of the connecting tube head 307, and the rubber strip 305 is stretched and pressed on the surface of the endotracheal tube 202 located inside the bite pad assembly 3. With the help of the friction between the rubber strip 305 and the surface of the endotracheal tube 202, the movement of the endotracheal tube 202 inside the connecting tube head 307 is restricted. According to actual needs, the endotracheal tube 2 can move independently of the bite pad assembly 3. After the adjustment is completed, the endotracheal tube 2 is fixed in a fixed state by means of the fixing bite pad assembly 3.

[0046] It is worth noting that by extending one end of the catheter body 202 into the interior of the adapter head 301 via the connecting tube head 307, one side of the buckle 801 is fastened to one end of the catheter body 202 (achieving a fixing effect), and by fitting the film sleeve 802 into the interior of the adapter head 301, the pad ring 803 can be fitted onto the exterior of the catheter body 202, so that the adapter 8 fills the space between the catheter body 202 and the adapter head 301. Because the adapter 8 is made of plastic material, the pad ring 803 can automatically expand and contract when the bite block assembly 3 moves slightly outside the tracheal tube 2.

[0047] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A painless tracheal intubation device, characterized by, include: Endotracheal tube (2); Dental pad assembly (3), which is disposed at one end of endotracheal tube (2); as well as The guide tube (1) is movably connected to the inside of the endotracheal tube (2); The endotracheal tube (2) includes a tube body (202), one end of which is integrally formed with a tube head (201). One end of the tube head (201) is machined with a beveled surface to form an elliptical cross-section. One end of the tube body (202) and the tube head (201) is bent and forms an obtuse angle in the projection plane to simulate the state of the guide tube core (1) being bent and installed into the patient's body. The endotracheal tube (2) is coated with a super-slippery layer and an analgesic layer. The analgesic layer is coated on the outside of the super-slippery layer. The guide tube (1) is guided by a laryngoscope and inserted into the patient's body. The endotracheal tube (2) is supported from the outside of the guide tube (1) so that one end of the tube head (201) is inserted into the patient's trachea. The tube head (201) guides and supports the tube body (202) to move in the patient's body.

2. The painless anesthesia endotracheal intubation method as described in claim 1, characterized in that: The surface of one end of the catheter tip (201) can also be processed into a spherical surface and smoothly transition to the surface of the catheter body (202). The catheter tip (201) moves within the patient's body under the premise that the tracheal tube (2) is supported by the spherical surface and there is no guide tube (1) inside.

3. The painless anesthesia endotracheal intubation method as described in claim 1, characterized in that: The dental pad assembly (3) includes an adapter pipe (301), one end of which is integrally formed with a seat plate (302), the surface of which is integrally formed with a connecting pipe head (307), a fixing seat (303) integrally formed on the outer wall of one side of the connecting pipe head (307), and a pressure seat (306) movably connected to the other side of the connecting pipe head (307). The surface of the fixing seat (303) located on one side of the connecting pipe head (307) is machined with an adaptation groove (5). The surfaces of the pressure seat (306) and the fixing seat (303) are both machined with occlusal grooves (6). The patient bites the fixing seat (303) and the pressure seat (306) through the two occlusal grooves (6), so that the pressure seat (306) is fastened to the outside of the connecting tube head (307).

4. The painless anesthesia endotracheal intubation method as described in claim 3, characterized in that: The connecting pipe head (307) has a limiting groove (4) inside the pressure seat (306) and rubber strips (305) are processed on the inner walls of both ends of the adapter groove (5). Among them, the two rubber strips (305) are arranged symmetrically about the bite groove (6). When the pressure seat (306) is fastened to the outside of the connecting tube head (307), the rubber strips (305) are stretched and pressed on the surface of the guide tube body (202) located at one end of the dental pad assembly (3).

5. The painless anesthesia endotracheal intubation method as described in claim 3, characterized in that: The pressure seat (306) has an observation window (7) inside, which connects the inside of the engagement groove (6) and the inside of the fitting groove (5).

6. The painless anesthesia endotracheal intubation method as described in claim 5, characterized in that: The surfaces at both corners of the pressure seat (306) are machined with guide rods (304), and one end of the guide rod (304) is machined with a ball head (308); The ball head (308) has a groove inside that is parallel to the axis of the guide rod (304). The guide rod (304) drives the ball head (308) to deform and insert into the corner of the fixed seat (303). Based on the elastic reset of the ball head (308), one end of the guide rod (304) is restricted from detaching from the inside of the fixed seat (303).

7. The painless anesthesia endotracheal intubation method as described in claim 3, characterized in that: The adapter (301) is provided with an adapter (8) inside. One end of the conduit body (202) extends into the interior of the adapter (301) through the connecting tube head (307). The adapter (8) fills the gap between the adapter (301) and the outer wall of the conduit body (202) and maintains the normal connection function of one end of the fixing seat (303).

8. The painless anesthesia endotracheal intubation method as described in claim 7, characterized in that: The adapter (8) includes a washer (803), one end of which is machined with a retaining ring (801), and the other end of which is machined with a thin film sleeve (802); One side of the buckle (801) is fastened to one end of the catheter body (202), and the film sleeve (802) is fitted into the inside of the adapter head (301), and drives the gasket (803) to be fitted onto the outside of the catheter body (202).

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