CN216061597U

CN216061597U - Visual trachea cannula guider

Info

Publication number: CN216061597U
Application number: CN202121947214.1U
Authority: CN
Inventors: 陈哲璇; 林楚曦
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-18
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to the technical field of medical instruments and discloses a visual tracheal intubation guider which comprises a guide core, wherein the tail end of the guide core is connected with a display device, a camera, a light source and an end-expiratory carbon dioxide concentration detection device are arranged at the head end of the guide core, the guide core is of a hollow structure, a lead is arranged in the guide core, and the camera and the end-expiratory carbon dioxide concentration detection device are in signal connection with the display device through the lead. When the trachea is intubated, medical staff directly observe pictures and carbon dioxide concentration in the trachea, when multiple conditions such as tissue swelling, secretion, bleeding and the like occur in the trachea, the camera cannot display the trachea structure, and the position with high carbon dioxide concentration is the direction of the trachea, so that the medical staff is assisted to complete intubation operation; meanwhile, the end-expiratory carbon dioxide concentration detection device is arranged at the head end of the guide core, so that the transmission path of carbon dioxide is reduced, the accuracy of carbon dioxide concentration detection is improved, and the accuracy of trachea direction judgment is improved.

Description

Visual trachea cannula guider

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a visual tracheal intubation guider.

Background

The endotracheal intubation is a technique in which a special endotracheal tube is placed into the trachea through the glottis, and this technique can provide optimal conditions for smooth airway, ventilation and oxygen supply, respiratory tract suction, prevention of aspiration, and the like. In the emergency medical field, the emergency trachea cannula technology becomes an important measure in the process of cardio-pulmonary resuscitation and emergency treatment of critically ill patients accompanied with respiratory dysfunction, and tracheal incretion or foreign matters can be sucked out in time through the trachea cannula, so that the smoothness of the respiratory tract is kept, effective manual or mechanical ventilation is carried out, and the direct relation between the oxygenation and the life safety of the patients can be maintained.

The conventional endotracheal intubation mainly adopts a transbuccal or transnasal photopic intubation method, namely, a laryngoscope or a fiber bronchoscope is used for judging the position of a catheter, so that the fact that the catheter passes through a glottis and enters an trachea is confirmed, which is a clinical 'gold standard', and under most conditions, anesthetists receiving routine training can smoothly carry out and complete endotracheal intubation. However, in the actual clinical work, when a patient suffers from head, neck and trachea diseases or has high risk factors including neck radiotherapy history, snoring, mandible retraction and other difficult trachea intubation, the glottis exposure of the patient is poor, the difficulty or failure of trachea intubation occurs, and the life safety of the patient is seriously threatened. With the development of visualization technology, visual laryngoscopes and fiber bronchoscopes are commonly used for treating difficult airways.

The utility model with the publication number of CN202843571U discloses a visual ventilation intubation laryngoscope, which comprises a visual ventilation handle, a ventilation tube cavity and a visual structure, wherein the visual ventilation handle is provided with the ventilation tube cavity and the visual structure which are adjacent and parallel to form a whole, and the upper end of the visual structure is connected with a display screen; the upper end and the lower end of the ventilation tube cavity are respectively provided with a ventilation port for ventilation, the front end of the visual ventilation handle can be sleeved with a disposable laryngoscope lens, and the disposable laryngoscope lens is provided with an inflatable cuff. The visual ventilation intubation laryngoscope utilizes the visual technology to clarify the obstruction part, relieve the obstruction of the airway and facilitate intubation.

However, due to the influence of various conditions such as tissue swelling, secretion, bleeding and the like on the visual field, the trachea position cannot be judged visually, the intubation success rate is affected, and the visual intubation tool has obvious application limitation.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the utility model provides a visual trachea cannula bullnose to solve the intubation device among the prior art when appearing a large amount of secretions etc. influence the field of vision, influence the problem of the success rate of intubate.

In order to achieve the purpose, the utility model provides a visual tracheal intubation guide, which comprises a guide core, wherein the tail end of the guide core is connected with a display device, the head end of the guide core is provided with a camera, a light source and a last-expiration carbon dioxide concentration detection device, the guide core is of a hollow structure, a lead is arranged in the guide core, the camera and the last-expiration carbon dioxide concentration detection device are in signal connection with the display device through the lead, and the display device is used for displaying an image of the camera and the carbon dioxide concentration detected by the last-expiration carbon dioxide concentration detection device.

Preferably, the camera is arranged at the center of the head end of the guide core, and the light sources are arranged around the camera at intervals.

Preferably, the light source is an LED lamp cap.

Preferably, the end-tidal carbon dioxide concentration detection device and the camera are arranged at intervals along the head-to-tail direction of the guide core, and the head end of the guide core is provided with an air vent communicated with the end-tidal carbon dioxide concentration detection device.

Preferably, the air guide holes are two in number and are symmetrically arranged along the camera.

Preferably, the air guide hole is an arc-shaped hole extending along the circumferential direction of the camera.

Preferably, the tail end of the guide core is also provided with an adjusting handle.

Preferably, the number of the adjusting handles is two, and the two adjusting handles are arranged at intervals along the extending direction of the guide core.

Preferably, the guide core is further sleeved with a conical friction head for friction fixation with the tracheal cannula.

Preferably, the conical friction head is made of rubber.

Compared with the prior art, the visual tracheal intubation guide has the beneficial effects that: the head end of the guide core is provided with a camera, a light source and an end-expiratory carbon dioxide concentration detection device, the tail end of the guide core is provided with a display device, when tracheal intubation is performed, medical workers insert the head end of the guide core into the tracheal intubation, the camera transmits an endotracheal picture to the display device in real time, meanwhile, the end-expiratory carbon dioxide concentration detection device transmits the carbon dioxide concentration in the trachea to the display device, the medical workers directly observe the picture and the carbon dioxide concentration in the trachea, when various conditions such as tissue swelling, secretion, bleeding and the like occur in the trachea, the camera cannot display the tracheal structure, the position with high carbon dioxide concentration is the direction of the trachea at the moment, and the medical workers are assisted in completing intubation operation; meanwhile, the end-expiratory carbon dioxide concentration detection device is arranged at the head end of the guide core, so that the transmission path of carbon dioxide is reduced, the carbon dioxide is prevented from being dissipated in the transmission process to change the concentration, the accuracy of carbon dioxide concentration detection is improved, and the accuracy of trachea direction judgment is improved.

Drawings

FIG. 1 is a schematic structural view of a visual endotracheal intubation guide of the present invention;

FIG. 2 is an enlarged, fragmentary, cross-sectional view at A of the visualized endotracheal tube guide of FIG. 1;

FIG. 3 is a schematic structural view of a leading end of a guide core of the visual endotracheal intubation guide of FIG. 1;

FIG. 4 is an exploded view of the visual endotracheal tube guide of FIG. 1;

fig. 5 is a schematic diagram of the power supply of the visual endotracheal tube guide of fig. 4.

In the figure, 1, a guide core; 2. a display device; 3. a camera; 4. a light source; 5. a means for detecting the concentration of end-tidal carbon dioxide; 6. a wire; 7. a conical friction head; 8. an air vent; 9. a power source.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1 to 5, the visual endotracheal intubation guide of the present invention includes a guide core 1, a display device 2, a camera 3, a light source 4, and a carbon dioxide end-expiratory concentration detection device 5, where the guide core 1 is used to be inserted into an endotracheal tube to assist in determining the position of the trachea, the camera 3, the light source 4, and the carbon dioxide end-expiratory concentration detection device 5 are all disposed on the guide core 1, and the display device 2 is connected to the guide core 1.

Camera 3, light source 4 and end-tidal carbon dioxide concentration detection device 5 are all fixed to be arranged at the head end of leading core 1, display device 2 and the end-to-end connection of leading core 1, and the head end of leading core 1 is for inserting one end in the trachea catheter, the one end of tail end for supplying the handheld operation of medical personnel. Lead core 1 and be hollow structure, lead and arrange wire 6 in core 1, camera 3 and end-expiratory carbon dioxide concentration detection device 5 all through

wire

6 and 2 signal connection of display device, wire 6 is used for transmitting the electric energy for camera 3, end-expiratory carbon dioxide concentration detection device 5, simultaneously to the signal that display device 2 transmission camera 3, end-expiratory carbon dioxide concentration detection device 5 detected.

The camera 3 is used for collecting video signals in the gas pipe and transmitting the video signals to the display device 2 through a lead 6. Camera 3 is microstructure, and camera 3 arranges the central point at the head end of guide core 1, and camera 3 arranges with guide core 1 is coaxial promptly, makes camera 3 obtain the biggest field of vision, and the orientation of camera 3 is the orientation of guide core 1 promptly simultaneously, is convenient for judge the trachea direction.

The light source 4 is an LED lamp cap, and the light source 4 is arranged in a plurality of intervals around the camera 3, namely the light source 4 is arranged in a ring shape outside the camera 3. Because the diameter of the guide core 1 is smaller, the size of the single light source 4 is smaller, and the light sources 4 are annularly arranged around the camera 3, the brightness in all directions can be increased, and the shooting effect of the camera 3 is improved.

The end-tidal carbon dioxide concentration detection device 5 is arranged at the tail end of the guide core 1, the end-tidal carbon dioxide concentration detection device 5 and the camera 3 are arranged at intervals along the head-tail direction of the guide core 1, and the end-tidal carbon dioxide concentration detection device 5 is positioned on one side of the camera 3 close to the tail end. The head end of the guide core 1 is provided with an air guide hole 8, the air guide hole 8 is communicated with the end-expiratory carbon dioxide concentration detection device 5, and carbon dioxide in the air pipe can be contacted with the end-expiratory carbon dioxide concentration detection device 5 through the air guide hole 8, so that the end-expiratory carbon dioxide concentration detection device 5 detects the concentration of the carbon dioxide.

The air guide holes 8 are two in number, the two air guide holes 8 are arranged in axial symmetry by taking the camera 3 as an axis, and the air guide holes 8 are arc-shaped holes extending along the circumferential direction of the camera 3. The carbon dioxide of two air guide holes 8 can the different directions all contacts with end-expiratory carbon dioxide concentration detection device 5, judges the concentration of the carbon dioxide of different directions, confirms tracheal direction, and the area of air guide hole 8 can be increased in the arc hole, the gas of being convenient for gets into.

Display device 2 is portable display, and display device 2 passes through 6 and camera 3, end-tidal carbon dioxide concentration detection device 5 signal connection of wire, and display device 2 is used for showing the video picture that camera 3 was shot and the carbon dioxide concentration that end-tidal carbon dioxide concentration detection device 5 detected, supplies medical personnel to judge tracheal position according to video picture and carbon dioxide concentration.

Display device 2 and lead between the core 1 ball-joint, ball-joint makes display device 2 have and is close 360 degrees turned angle, when carrying out the intubate operation, medical personnel can rotate display device 2 and change its orientation, and the medical personnel of the different positions of being convenient for observe the content that shows.

The guide core 1 is also sleeved with a conical friction head 7, the conical friction head 7 and the guide core 1 are relatively fixed through friction force, and when needed, medical personnel can push the conical friction head 7 to move on the guide core 1 to overcome the friction force and adjust the distance between the conical friction head 7 and the camera 3 at the end part of the guide core 1. In this embodiment, the conical friction head 7 is made of rubber, which has a large friction force, low cost and is convenient to use.

When the guide core 1 is inserted into the trachea cannula, the conical friction head 7 is relatively fixed with the trachea cannula through friction force, so that the position between the camera 3 at the end part of the guide core 1 and the pipe orifice of the trachea cannula is relatively fixed, for example, the pipe orifice of the trachea cannula slightly exceeds the camera 3, so that medical personnel can observe the pipe orifice of the trachea cannula through the camera 3, and at the moment, the conical friction head 7 and the trachea cannula are relatively fixed through friction force, so that the camera 3 and the pipe orifice of the trachea cannula are relatively fixed.

When trachea cannula, different patients need to use the trachea cannula of different models, so the trachea cannula of each model has different length and diameter, the conical surface of the conical friction head 7 can be adapted to the trachea cannula with different pipe diameters, and the application range is wide.

The display device 2 is also internally detachably provided with a power supply 9, the power supply 9 is connected with the camera 3 and the end-tidal carbon dioxide concentration detection device 5 in the guide core 1 through a lead 6, and the power supply 9 can provide working power for the camera 3 and the end-tidal carbon dioxide concentration detection device 5. The cross-section of power 9 is semi-circular structure, and power 9 is the halfcylinder shape promptly, has arranged the interface respectively on the terminal surface at the both ends of power 9, and one set of interface is used for being connected with leading core 1, and another set of interface is used for being connected with display device 2, for display device 2 power supply.

The power supply 9 is also provided with a wireless signal device, the wireless signal device is used for being in wireless connection with a large display screen of an external device, the wireless signal can be a Bluetooth signal, a radio frequency signal or a WiFi signal, and the concentration of carbon dioxide and pictures displayed on the display device 2 are projected on the larger external display screen of the screen, so that the observation and the use are facilitated.

The working process of the utility model is as follows: when performing an endotracheal intubation operation, an operator inserts the leading end of the guide core 1 into the endotracheal tube, controls the relative position of the guide core 1 and the endotracheal tube by the tapered friction head 7, and transmits a video screen and the carbon dioxide concentration to the display device 2 by the camera 3 and the end-tidal carbon dioxide concentration detection device 5. When the trachea or the larynx has no large amount of secretion, bloodiness and the like, the visual operation of the camera 3 meets the requirement of intubation, and the intubation can be smoothly completed by the difficult airway; when trachea or back head have a large amount of secretions to exist or the condition is urgent, medical personnel know the carbon dioxide concentration of leading 1 head end of core in real time through display device 2, find the direction that carbon dioxide concentration surveyed the highest and be the direction that the trachea is located, the video picture of cooperation camera 3 makes trachea cannula get into glottis and air flue smoothly, assists and accomplishes the intubate. In addition, according to the concentration of carbon dioxide, the excitability and the ventilation condition of the airway can be judged, according to the requirement, if the stress is stronger, the dosage of anesthesia induction medicines can be increased, the stress of the airway of a patient is reduced, the patient is more comfortable in the intubation process, the state is more stable, if the concentration of carbon dioxide is measured to be lower, more endocrine in the airway is considered, timely cleaning can be carried out, the respiratory tract is unobstructed, and the occurrence of life-threatening conditions such as suffocation and the like caused by insufficient ventilation of vital signs of the patient is avoided.

To sum up, the embodiment of the utility model provides a visual tracheal intubation guide, which is characterized in that a camera, a light source and a last-expiratory carbon dioxide concentration detection device are arranged at the head end of a guide core, and a display device is arranged at the tail end of the guide core, when tracheal intubation is performed, a medical worker inserts the head end of the guide core into the tracheal intubation, the camera transmits an endotracheal picture to the display device in real time, meanwhile, the last-expiratory carbon dioxide concentration detection device transmits the carbon dioxide concentration in the trachea to the display device, the medical worker directly observes the picture and the carbon dioxide concentration in the trachea, when various conditions such as tissue swelling, secretion, bleeding and the like occur in the trachea, the camera cannot display the tracheal structure, the position with high carbon dioxide concentration is the direction of the trachea at the moment, and assists the medical worker in completing intubation operation; meanwhile, the end-expiratory carbon dioxide concentration detection device is arranged at the head end of the guide core, so that the transmission path of carbon dioxide is reduced, the carbon dioxide is prevented from being dissipated in the transmission process to change the concentration, the accuracy of carbon dioxide concentration detection is improved, and the accuracy of trachea direction judgment is improved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The visual tracheal intubation guider is characterized by comprising a guide core, wherein the tail end of the guide core is connected with a display device, a camera, a light source and an end-expiratory carbon dioxide concentration detection device are arranged at the head end of the guide core, the guide core is of a hollow structure, a lead is arranged in the guide core, the camera and the end-expiratory carbon dioxide concentration detection device are in signal connection with the display device through the lead, and the display device is used for displaying an image of the camera and the concentration of carbon dioxide detected by the end-expiratory carbon dioxide concentration detection device.

2. The visual endotracheal tube guide of claim 1 wherein the camera is disposed centrally of the head end of the guide core, and the light sources are spaced a plurality about the camera.

3. The visual endotracheal tube guide of claim 2 wherein the light source is an LED light head.

4. The visual endotracheal intubation guide according to any one of claims 1 to 3, wherein the end-tidal carbon dioxide concentration detection device and the camera are arranged at intervals along the head-to-tail direction of the guide core, and the head end of the guide core is provided with an air vent communicated with the end-tidal carbon dioxide concentration detection device.

5. The visual endotracheal tube guide of claim 4 wherein the gas conduction holes are two in number and symmetrically arranged along the camera.

6. The visual endotracheal tube guide of claim 5 wherein the gas-directing holes are arcuate holes extending circumferentially of the camera head.

7. The visual endotracheal tube guide of any one of claims 1 to 3, characterized in that the guide core is further fitted with a tapered friction head for frictional fixation with an endotracheal tube.

8. The visual endotracheal tube guide of claim 7, characterized in that the conical friction head is made of rubber.