Trachea intubation auxiliary device

Abstract

The tracheal intubation auxiliary device comprises a tubular main body, and an intubation channel, a lens channel and an oxygen channel are arranged in the tubular main body; the intubation channel is used for inserting a gas conduit; the lens channel is used for accessing a lens; a flow guide structure is arranged at the front end of the oxygen channel and used for guiding airflow in the oxygen channel to the lens. After the tubular main body is placed on the pharynx of a patient, a gas conduit can be inserted through the intubation channel inside the tubular main body, the oropharynx cannot be injured during intubation due to the protection of the tubular main body, and oxygen can be blown to the lens through the matching of the oxygen channel and the flow guide structure when the visual field of a glottis area is enlarged through the lens, so that the patient can be prevented from being injured. According to the system, oxygen can be appropriately supplied, water vapor condensed on a lens can be removed, the visual field is kept clear, and the safety of the intubation process is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of intubation, and particularly relates to a tracheal intubation assistance device. Background Art

[0002] Since 1880, there has been an intubation technique of inserting a metal catheter into the trachea for pulmonary ventilation to ensure effective gas exchange during surgery. Over the past 140 years, the intubation technique has continuously advanced, ensuring the safety of patients during surgery and guaranteeing the development of surgical operations. In the past two decades, numerous intubation assistance methods have gradually emerged, such as light beam guidance, sound guidance, optical fiber bronchoscope, laryngeal mask airway (LMA), video laryngoscope, etc. These methods have well assisted the intubation operation of anesthesiologists and significantly reduced the anesthesia mortality rate. However, due to the relatively narrow parts such as the laryngopharynx during intubation and the difficulty of direct observation, even with the current intubation assistance equipment, there are still disadvantages such as complex operation, a relatively high risk of damage to the oropharynx, and a large amount of total consumables used during intubation. Content of the Utility Model

[0003] Aiming at the technical problems existing in the prior art, the purpose of the utility model is to provide a tracheal intubation assistance device that can clearly and conveniently view the glottis area and reduce the risk of oropharyngeal injury during the intubation process.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A tracheal intubation assistance device includes a tubular main body, and an intubation channel, a lens channel, and an oxygen channel are arranged inside the tubular main body; the intubation channel is used for inserting a gas catheter; the lens channel is used for accessing a lens; a diversion structure is arranged at the front end of the oxygen channel, and the diversion structure is used to direct the air flow in the oxygen channel to the lens.

[0005] After adopting this structure, after placing the tubular main body of the device in the patient's pharynx, the gas catheter can be inserted through the intubation channel inside the tubular main body. Due to the protection of the tubular main body, the oropharynx will not be damaged during intubation. When magnifying the field of view of the glottis area through the lens, through the cooperation of the oxygen channel and the diversion structure, oxygen can be blown towards the lens, which can not only supply an appropriate amount of oxygen but also expel the condensed water vapor on the lens to keep the field of view clear , further ensuring the safety of the intubation process.

[0006] As a preference, it further includes a display. The lens is connected with a flexible optical fiber cable, and the optical fiber cable passes through the lens channel and extends out from the rear end of the lens channel to be connected to the display.

[0007] As a preference, a lifting part for lifting the epiglottis is arranged at the front end of the tubular main body, and the front end of the lifting part is smooth.

[0008] As a preferred embodiment, from the front end to the rear end, the tubular body bends toward one side, so that the tubular body is J-shaped, one side outer surface of the tubular body is a concave side surface, and the other side surface is a convex side surface; the intubation channel, the lens channel and the oxygen channel respectively penetrate the tubular body front and back, and the front end surface of the tubular body is an inclined surface, and the angle between the inclined surface and the front end extension line of the concave side surface is an obtuse angle, so that a raised portion that gradually shrinks forward is formed between the inclined surface and the concave side surface.

[0009] As a preferred embodiment, the guide structure includes a guide platform fixed to the front end of the oxygen channel, the guide platform has a guide groove, the opening of the guide groove faces the lens, and the front wall of the guide groove is bent or inclined toward the direction of the lens.

[0010] As a preferred embodiment, the cross-section of the guide groove is spoon-shaped.

[0011] As a preferred embodiment, the outer contour of the tubular body and the cross section of the cannula channel are both elliptical, the oxygen channel and the lens channel are both located on one side of the cannula channel, and the oxygen channel and the lens channel are symmetrical with respect to the long axis of the cross section of the cannula channel;

[0012] Alternatively, the outer contour of the tubular body and the cross-section of the cannula channel are both rounded rectangles, the oxygen channel and the lens channel are both located on one side of the cannula channel, and the oxygen channel and the lens channel are symmetrical relative to the short side center line of the cannula channel cross-section.

[0013] As a preferred embodiment, a sheet-shaped handle is fixedly provided at the rear end of the tubular body, and the outer contour of the handle is an oval-like shape with one end larger than the other; and a plurality of anti-slip grooves are formed on the front surface of the handle.

[0014] As a preferred embodiment, the front end surfaces of the lens channel and the oxygen channel are both retracted into the interior of the tubular body, and a distance is left between them and the front end surface of the tubular body.

[0015] As a preference, the tubular body is made of degradable plastic.

[0016] In general, the utility model has the following advantages:

[0017] (1) By using a lens channel, the fiber optic cable can pass through and connect to an external display, simplifying the intubation process and making it more visual. The anesthesiologist can truly perform "stationary operation" and reduce the intensity of intubation.

[0018] (2) The operator operates at the side of the patient's head, away from the patient's mouth and nose, thus avoiding the risk of transmission of pathogens through the patient's aerosols.

[0019] (3) The tubular body is designed with the physiological curvature of the oral cavity and has a smooth surface. The intubation process is performed within the intubation channel, which greatly reduces the occurrence of oral tissue damage.

[0020] (4) The disposable consumables used throughout the intubation process are simple and in small quantities, meeting the environmental protection principle. Description of the Drawings

[0021] Figure 1 Stereoscopic structure diagram of the tracheal intubation assistance device of the embodiment.

[0022] Figure 2 Side view of the tracheal intubation assistance device of the embodiment.

[0023] Figure 3 For Figure 2 Sectional view taken along line A-A in

[0024] Figure 4 Stereoscopic structure diagram of the tracheal intubation assistance device of another embodiment.

[0025] Figure 5 Side view of the tracheal intubation assistance device of another embodiment.

[0026] Figure 6 For Figure 5 Sectional view taken along line B-B in

[0027] Figure 7 Stereoscopic structure diagram of the tracheal intubation assistance device of another embodiment.

[0028] Figure 8 Front view of the tracheal intubation assistance device of another embodiment.

[0029] Figure 9 For Figure 8 Sectional view taken along line C-C in

[0030] Wherein, 1 is a tubular main body, 2 is an intubation channel, 3 is a lens channel, 4 is an oxygen channel, 5 is a handle, 6 is an inclined surface, 7 is a flow guiding structure, 51 is an anti-slip groove, and 71 is a flow guiding groove. Detailed Embodiment

[0031] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0032] As Figures 1 - 2 shown, the tracheal intubation assistance device includes a tubular main body 1, and an intubation channel 2, a lens channel 3, and an oxygen channel 4 are provided inside the tubular main body; the intubation channel is used for inserting a gas catheter; the lens channel is used for accessing a lens, and the lens adopts an optical fiber lens and can be placed along the lens channel to its front end; a flow guiding structure is provided at the front end of the oxygen channel, and the flow guiding structure is used for guiding the air flow in the oxygen channel to the lens. The rear end of the oxygen channel can be connected to a gas supply device, the gas supply device provides oxygen, the oxygen is blown to the lens through the oxygen channel and the flow guiding structure, and the flow guiding structure can adopt an arc-shaped flow guiding baffle, etc.

[0033] During intubation, use your hand to spread the patient's mandible to open the mouth, place the front end of the tubular body along the tongue surface in the pharynx, drive the front-end lens to turn through the sheet-shaped handle, and when the glottis is clearly exposed and satisfactory through the display, fix the tubular body with one hand, and hold the tracheal catheter with the other hand and insert it into the glottis through the intubation channel. At this time, fix the tracheal catheter, and with the other hand, pull out the tubular body along the curvature of the oral cavity to make it withdraw and separate from the tracheal catheter, and fix the tracheal catheter outside the lips to complete the intubation process. During the intubation process, pass an appropriate amount of oxygen through the oxygen channel, which can not only supply oxygen to the patient, but also prevent the lens from fogging up.

[0034] As Figure 3 shown, the outer contour of the tubular body and the cross-section of the intubation channel are both elliptical. The oxygen channel and the lens channel are both located on one side of the intubation channel, and the oxygen channel and the lens channel are symmetric with respect to the long axis of the cross-section of the intubation channel. The long axis of the cross-section of the outer contour of the tubular body is about 2 - 3 cm, and the short axis is about 1.2 - 1.8 cm; the long axis of the cross-section of the intubation channel is about 1.5 - 3 cm, and the short axis is about 1.2 - 1.6 cm; the cross-sections of the oxygen channel and the lens channel are both circular, with a diameter of 3 - 6 mm. The above size range is applicable to adults. If the patient to be intubated is a child or an infant, corresponding adjustments can be made according to the needs.

[0035] In some embodiments, as Figures 4 - 6 shown, the outer contour of the tubular body and the cross-section of the intubation channel are both rounded rectangles. The oxygen channel and the lens channel are both located on one side of the intubation channel, and the oxygen channel and the lens channel are symmetric with respect to the center line of the short side of the cross-section of the intubation channel. The long side dimension of the cross-section of the outer contour of the tubular body is about 3 - 5 cm, and the short side dimension is about 1.5 - 2 cm; the long side dimension of the cross-section of the intubation channel is about 3.5 - 4 cm, and the short side dimension is about 1.5 - 2.5 cm; the cross-sections of the oxygen channel and the lens channel are both circular, with a diameter of 3 - 6 mm. The above size range is applicable to adults. If the patient to be intubated is a child or an infant, corresponding adjustments can be made according to the needs.

[0036] In some embodiments, the tracheal intubation assistance device further includes a display. The lens is connected with a flexible optical fiber cable, and the optical fiber cable passes through the lens channel and extends out from the rear end of the lens channel to connect to the display. The lens, the optical fiber cable, and the display can all adopt existing products. An appropriate length can be left for the part of the optical fiber cable extending out of the lens channel to facilitate adjusting the position of the display. Compared with the traditional method where the existing small display is fixed on the intubation assistor and the intubation operator can only stand at the head of the patient, in this embodiment, the display of the provided device is not fixed and can be placed in front of the operator as needed, with stronger flexibility during operation and more convenient for the operator to observe. For example, the operator can stand on the left side of the patient (if the right is dominant, then on the right side), and place the small display on the opposite side of the patient or beside the opposite side, facing the operator.

[0037] In some embodiments, a lifting portion for lifting the epiglottis is provided at the front end of the tubular body, and the front end of the lifting portion is smooth. During operation, the lifting portion can lift the epiglottis to expose the glottis. The lifting portion can be made into different bending angles to meet the requirements of exposing the glottis.

[0038] In some embodiments, as Figures 7 - 9 shown, from the front end to the rear end, the tubular body is bent toward one side, so that the tubular body is in a J shape. One outer surface of the tubular body is a concave surface, and the other surface is a convex surface; the specific bending amplitude of the tubular body can be designed according to the oral physiological curvature of different individuals, and the entire outer surface of the tubular body is smooth.

[0039] The intubation channel, the lens channel, and the oxygen channel penetrate the tubular body from front to back respectively. The front end face of the tubular body is an inclined surface 6, and the included angle a between the inclined surface and the front extension line of the concave surface is an obtuse angle, so that a lifting portion that tapers forward is formed between the inclined surface and the concave surface. In this embodiment, the included angle a is an obtuse angle not less than 120°.

[0040] In some embodiments, as Figure 7 shown, the diversion structure 7 includes a diversion platform fixed to the front end of the oxygen channel. The diversion platform is provided with a diversion groove 71. The opening of the diversion groove faces the lens, and the front wall surface of the diversion groove is bent or inclined in the direction of the lens.

[0041] The oxygen channel and the lens channel are arranged side by side or in parallel, and the lens channel is located on one side of the oxygen channel. The rear end of the diversion groove is smoothly transitioned with the front end of the oxygen channel, so that the oxygen can flow smoothly along the bottom end of the diversion groove after flowing out of the oxygen channel. The diversion platform has a certain height. Specifically, in the extending direction of the oxygen channel, the front end of the diversion platform can block at least half of the oxygen channel or even completely block it, so that most of the oxygen can be effectively directed to the lens on one side.

[0042] In some embodiments, as Figures 8 - 9 shown, the cross section of the diversion groove is in a spoon shape. The diversion groove extends forward in a spoon shape from the front end of the oxygen channel, its front wall surface is arc-shaped, and the tangent line of the front wall surface at the opening passes through the position where the lens is located, so that the air flow can accurately blow to the lens to prevent the lens surface from condensing water vapor and fogging.

[0043] In some embodiments, as Figure 7 shown, a sheet-like handle 5 is fixedly provided at the rear end of the tubular body. The outer contour of the handle is a quasi-elliptical shape with one end large and the other end small; multiple anti-slip grooves 51 are provided on the front surface of the handle. The cross section of the anti-slip groove is semi-circular. Through the anti-slip groove, it is not easy for the operator to slip when holding the handle, and the operation is more stable. The handle is provided with an installation through hole that matches the outer contour of the tubular body, and is connected to the tubular body through the installation through hole.

[0044] In some embodiments, the front end faces of the lens channel and the oxygen channel are both recessed into the interior of the tubular body, and there is a spacing between them and the front end face of the tubular body. The front end faces of the cannula channel, the lens channel, and the oxygen channel are flush, and the average spacing between them and the front end face of the tubular body is about 5 mm. In this way, the lens is not easily damaged inside, and the front end area of the tubular body can be clearly displayed.

[0045] In some embodiments, the tubular body is made of biodegradable plastic, such as PVC, PLA, or other suitable materials.

[0046] The above embodiments are preferred embodiments of the utility model, but the embodiments of the utility model are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the utility model shall be equivalent replacement methods and are all included in the protection scope of the utility model.

Claims

1. An endotracheal intubation assisting device, characterized in that: It comprises a tubular body, in which a cannula channel, a lens channel and an oxygen channel are arranged; The intubation channel is used to insert the gas catheter; The lens channel is used to access the lens; A flow guiding structure is provided at the front end of the oxygen channel, and the flow guiding structure is used to guide the airflow in the oxygen channel to the lens.

2. The endotracheal intubation assisting device according to claim 1, characterized in that: A display is also included. The lens is connected to a flexible optical fiber cable. The optical fiber cable passes through the lens channel and extends from the rear end of the lens channel to connect to the display.

3. The endotracheal intubation assisting device according to claim 1, characterized in that: The front end of the tubular body is provided with a lifting portion for lifting the epiglottis, and the front end of the lifting portion is smooth.

4. The endotracheal intubation assisting device according to claim 3, characterized in that: From the front end to the rear end, the tubular body is bent toward one side, so that the tubular body is in a J shape, one side outer surface of the tubular body is a concave side surface, and the other side surface is a convex side surface; The intubation channel, the lens channel and the oxygen channel respectively penetrate the tubular body front to back. The front end face of the tubular body is an inclined surface. The angle between the inclined surface and the front end extension line of the concave side surface is an obtuse angle, so that a forward-contracting raised portion is formed between the inclined surface and the concave side surface.

5. The endotracheal intubation assisting device according to claim 1, characterized in that: The guide structure comprises a guide platform fixed at the front end of the oxygen channel, the guide platform is provided with a guide groove, the opening of the guide groove faces the lens, and the front wall surface of the guide groove is bent or inclined towards the direction of the lens.

6. The endotracheal intubation assisting device according to claim 5, characterized in that: The cross section of the guide groove is spoon-shaped.

7. The endotracheal intubation assisting device according to claim 1, characterized in that: The outer contour of the tubular body and the cross section of the cannula channel are both elliptical, the oxygen channel and the lens channel are both located on one side of the cannula channel, and the oxygen channel and the lens channel are symmetrical relative to the long axis of the cross section of the cannula channel; Alternatively, the outer contour of the tubular body and the cross-section of the cannula channel are both rounded rectangles, the oxygen channel and the lens channel are both located on one side of the cannula channel, and the oxygen channel and the lens channel are symmetrical relative to the short side center line of the cannula channel cross-section.

8. The endotracheal intubation assisting device according to claim 1, characterized in that: A sheet-shaped handle is fixedly arranged at the rear end of the tubular body, and the outer contour of the handle is an ellipse-like shape with one end larger than the other end; and a plurality of anti-slip grooves are arranged on the front surface of the handle.

9. The endotracheal intubation assisting device according to claim 1, characterized in that: The front end surfaces of the lens channel and the oxygen channel are both retracted into the interior of the tubular body, and a distance is left between the front end surface of the tubular body.

10. The endotracheal intubation assisting device according to claim 1, characterized in that: The tubular body is made of biodegradable plastic.

Images