CN211383283U

CN211383283U - Outer sleeve guiding type trachea cannula core

Info

Publication number: CN211383283U
Application number: CN201721250491.0U
Authority: CN
Inventors: 辜春霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-27
Filing date: 2017-09-27
Publication date: 2020-09-01
Anticipated expiration: 2027-09-27

Abstract

The utility model provides an outer sleeve guiding type trachea cannula core, which comprises a shaping guide core, wherein a fixed handle is arranged at the rear end of the shaping guide core, a hollow guiding probe is wrapped at the periphery of the shaping guide core, the rear end of the guiding probe is detachably connected with a clamping handle, a through hole is arranged in the center of the clamping handle in a penetrating way, the through hole of the clamping handle is communicated with the guiding probe, and the outer diameter of the fixed handle is larger than the diameter of the through hole of the clamping handle; when the plastic guide core is used, the front end of the plastic guide core can penetrate into the clamping handle and the guide probe tube and can move along the axial direction of the guide probe tube. Through the utility model discloses can improve the intubate greatly and send the success rate of pipe, and simple structure, easy operation, low cost.

Description

Outer sleeve guiding type trachea cannula core

Technical Field

The utility model relates to a medical tool, in particular to a sleeve guiding type trachea cannula core.

Background

The technology of placing a special endotracheal tube into the trachea through the glottis is called trachea intubation, and the technology can provide optimal conditions for smooth air passage, ventilation and oxygen supply, respiratory tract suction, prevention of aspiration and the like.

In normal intubation, the shaping core acts to plastically deform the front end of the endotracheal tube and provides a glottic insertion to the front end of the tube during removal of the core. However, in difficult intubation, the glottis is often not exposed because the epiglottis is tightly attached to the posterior pharyngeal wall or the epiglottis itself is not exposed well, and the relative position of the glottis is too high. To ensure that the catheter tip can pass over the epiglottis, the shaped core tip is often shaped as a short hook. The plastic function of the front end of the shaping guide core only can ensure that the front end of the catheter crosses the epiglottis and is positioned in front of and below the glottis.

During the operation of removing the tube core, because the relative position of the glottis is too high, the insertion action time of the short hook-shaped shaping at the front end of the shaping guide core towards the glottis direction is too short, the amplitude is too small, the angle change is too fast, and because the rigidity direction of the tracheal catheter in the release of the tube core removing process is downward (namely towards the direction of the esophagus), the tracheal catheter is often caused to enter the glottis in the process of rapidly recovering the metal tube core from the shaping angle downwards, and the intubation failure is caused because the tracheal catheter does not get into the glottis in the dynamic change of the instant upward and forward insertion. This is also a reason why violent manipulations such as depressing the throat, bending the neck, and shoulder pads are often required in combination when difficult to insert the tube. In order to improve the success rate of intubation and tube delivery, further intensive research on the core of the tracheal intubation tube is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model provides a overcoat direction formula trachea cannula tube core can improve the intubate greatly and send the success rate of tub, and simple structure, easy operation, low cost.

In order to achieve the above purpose, the technical scheme of the utility model is that:

an outer sleeve guide type tracheal intubation tube core comprises a shaping guide core, wherein a fixed handle is arranged at the rear end of the shaping guide core, a hollow guide probe tube wraps the periphery of the shaping guide core, a clamping handle is detachably connected to the rear end of the guide probe tube, a through hole penetrates through the center of the clamping handle, the through hole of the clamping handle is communicated with the guide probe tube, and the outer diameter of the fixed handle is larger than the diameter of the through hole of the clamping handle; when the plastic guide core is used, the front end of the plastic guide core can penetrate into the clamping handle and the guide probe tube and can move along the axial direction of the guide probe tube.

Preferably, the front end of the guide probe is provided with a front light source, the front light source is connected with a front light source switch and a front light source power supply, and the front light source switch and the front light source power supply are arranged at the rear end of the guide probe or on the clamping handle.

Preferably, be provided with rearmounted light source in guide probe rear end or the screens handle, be provided with optic fibre in the guide probe, the rear end and the rearmounted light source of optic fibre link to each other, and the front end of optic fibre extends to guide probe front end and fixes, optic fibre and guide probe can be along moulding lead core axial displacement, and rearmounted light source sends light and passes through optic fibre transmission to guide probe front end.

Preferably, a rear light source is arranged in the rear end of the guide probe or the clamping handle, the guide probe is made of light guide materials, and light rays of the rear light source can be directly transmitted to the front end of the guide probe through the rear end of the guide probe.

Preferably, moulding lead core front end still is provided with the camera, the camera is connected with video switch, video power supply and video display subassembly, video switch and video power supply set up on the screens handle or on the external video device through the extension line connection. More preferably, the camera head is provided with a camera light source, the camera light source is connected with a camera light source switch and a camera light source power supply, and the camera light source switch and the camera light source power supply are arranged on the clamping handle or an external video device connected through an extension line.

Above the overcoat direction formula trachea cannula tube core, it is preferred, the guide is visited the pipe front end and is had elasticity, and when the front end of guide was visited pipe and moulding the front end parallel and level of leading the core, the smooth parcel of guide was visited the pipe and is being peripheral at moulding leading the core, when the front end of guide was visited the pipe and is released forward relatively moulding leading the front end of core, the guide was visited the pipe front end and is become the crook shape.

Preferably, the shaping guide core is made of metal.

Preferably, the guide probe is made of plastic.

The specific use method of the outer sleeve guide type tracheal intubation tube core comprises the following steps: under the condition of difficult glottic exposure of tracheal intubation, the tube core of the outer sleeve guide type tracheal intubation is inserted into a tracheal catheter for hook-shaped shaping, and the tracheal catheter is directly or indirectly intubated under the photopic vision through a laryngoscope, so that the front end of the tracheal catheter crosses an epiglottis as far as possible and is positioned in front of the glottic; then, a clamping handle at the rear end of the guide probe tube is slid until the clamping handle is clamped at the position of the tracheal catheter, so that the guide probe tube enters the glottis under direct vision and enters the trachea for a certain anti-drop depth; then the fixed handle is pulled to draw out the shaping guide core upwards, and the clamping handle slides downwards along the situation to enable the guide probe tube and the tracheal catheter to be sent into the glottis together; and finally, fixing the tracheal catheter, pulling out the clamping handle to remove the guide probe, and finishing intubation.

The outer sleeve guide type trachea cannula core has the following advantages:

(1) the utility model discloses on keeping the moulding characteristic of traditional tube core and function basis, increase the guide probe that can follow axial displacement outside moulding guide core, realize the guide probe and the guide function that moulding guide core combines, because the guide probe can be put into before tracheal catheter and go forward the slip and probe into the glottis in advance, and help maintains moulding guide core's hook-like moulding, the effect of guide probing before can be better playing the intubate.

(2) The utility model discloses preferred increased the light source, through the guide effect of rearmounted light source and guide optic fibre, or the effect of leading light source, make light throw to the tube core front end to its light spot that throws at the neck body surface helps operating personnel to indirectly judge the position of guide exploring tube front end in the air flue, realizes the optical wand locate function of guide exploring tube.

(3) The utility model discloses the preferred camera device that has increased at guide probe front end to transmit the image that the camera was shot to external display device, and then help operating personnel directly judge the position of guide probe front end in the air flue, realize the video locate function of guide probe.

(4) Through the utility model discloses, meetting the uncertain condition of special difficulty, can adjust repeatedly before pulling out the tube core and put into endotracheal tube and push into the guide and visit the pipe to combine optical wand or video locate function, whether the position after the intubate is confirmed to the probe is correct, pulls out the tube core again after confirming correct and releases endotracheal tube, thereby can realize guide and visit the pipe-the nature verification function of prejudgement.

(5) The utility model discloses the preferred elastic guide probe front end that has set up, because the guide probe front end has pretension, present predetermined crooked form under the restraint that does not have moulding guide core, consequently at the intubate in-process, released the back, can be according to pretension's angle bending to more the adaptation angle gets into the glottis, thereby improved the intubate success rate, reduced the tissue damage.

(6) Because the guide probe tube wraps the shaping guide core, the possibility that the hard shaping guide core contacts tissues and further causes corresponding tissue damage is reduced.

(7) Through the utility model discloses, can optimize the intubate step, and then the effectual intubate failure rate that has reduced has alleviateed intubate personnel's work burden.

(8) The utility model has the advantages of being simple in structure and low in cost, easy operation can solve the glottis and can't fully expose and can't be directly viewed under the condition, the problem that conventional tube core class instrument intubate failure rate is high has better popularization application prospect clinically.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 4 of the present invention.

Fig. 5 is a schematic structural diagram of embodiment 5 of the present invention.

Fig. 6 is a schematic view of the usage state of the present invention.

In the figure, a guide probe 1, a clamping handle 2, a fixed handle 3, a shaping guide core 4, an optical fiber 5, a rear light source 6, a camera 7, a tracheal catheter 8, an epiglottis 9 and a trachea 10.

Detailed Description

The present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited to the following examples.

Example 1

As shown in fig. 1, an outer sleeve guiding type tracheal intubation tube core comprises a shaping guide core 4, wherein a fixed handle 3 is arranged at the rear end of the shaping guide core 4, a hollow guiding probe tube 1 is wrapped on the periphery of the shaping guide core 4, a clamping handle 2 is detachably connected to the rear end of the guiding probe tube 1, a through hole is formed in the center of the clamping handle 2 in a penetrating mode, the clamping handle through hole is communicated with the guiding probe tube 1, and the outer diameter of the fixed handle 3 is larger than the diameter of the clamping handle through hole; when using, moulding lead 4 front ends can penetrate screens handle 2 and guide and visit in the pipe 1 and can visit 1 axial displacement along the guide, and when fixed handle 3 contacted screens handle 2, the front end of guide and visiting 1 makes guide and visit pipe 1 and can wrap up moulding lead 4 and then protect moulding lead the hook-like moulding of core 4 completely when using with moulding lead 4 front end parallel and level at least.

Under the condition of difficult glottic exposure of the tracheal intubation, the tube core of the outer sleeve guide type tracheal intubation is inserted into the tracheal catheter 8 for hook-shaped shaping, and the tracheal catheter is directly or indirectly inserted under the photopic vision through a laryngoscope, so that the front end of the tracheal catheter 8 crosses over an epiglottis 9 as far as possible and is positioned in front of the glottic; then, the clamping handle 2 at the rear end of the guide probe 1 is slid until the guide probe is clamped at the opening of the tracheal catheter 8, so that the guide probe 1 enters the glottis under direct vision and enters the trachea 10 for a certain anti-drop depth; then the fixed handle 3 is pulled to draw out the shaping guide core 4 upwards, and the clamping handle 2 slides downwards along the situation to enable the guide probe tube 1 and the tracheal catheter 8 to be sent into the glottis; finally, the tracheal catheter 8 is fixed, the clamping handle 2 is pulled out, the guide probe 1 is removed, and the intubation is finished at the moment.

In this embodiment, the shaping guide core may be made of metal, and the guiding probe may be made of plastic.

On the basis of keeping the shaping characteristic and the function of the traditional tube core, the guide probe capable of moving along the axial direction is additionally arranged outside the shaping guide core 4, the guide function of combining the guide probe and the shaping guide core is realized, and the guide probe can slide forwards before the tracheal tube is placed into the glottis to probe into the glottis in advance, and helps to maintain the hook-shaped shaping of the shaping guide core, so that the function of guiding and probing before the intubation tube can be well played.

Furthermore, a front light source can be arranged at the front end of the guide probe tube 1, the front light source is connected with a front light source switch and a front light source power supply through electric wires, and the front light source switch and the front light source power supply are arranged at the rear end of the guide probe tube or on the clamping handle, so that an operator can indirectly confirm the position of the front end of the guide probe tube 1 in the air passage and the position of the front end of the guide probe tube in the sound door through a light spot projected by the front light source on the body surface of the neck.

Example 2

As shown in fig. 2, an outer sleeve guiding type tracheal intubation tube core comprises a shaping guide core 4, wherein a fixed handle 3 is arranged at the rear end of the shaping guide core 4, a hollow guiding probe tube 1 is wrapped on the periphery of the shaping guide core 4, a clamping handle 2 is detachably connected to the rear end of the guiding probe tube 1, a through hole is formed in the center of the clamping handle 2 in a penetrating mode, the clamping handle through hole is communicated with the guiding probe tube 1, and the outer diameter of the fixed handle 3 is larger than the diameter of the clamping handle through hole; when using, moulding lead 4 front ends can penetrate screens handle 2 and guide and visit in the pipe 1 and can visit 1 axial displacement along the guide, and when fixed handle 3 contacted screens handle 2, the front end of guide and visiting 1 makes guide and visit pipe 1 and can wrap up moulding lead 4 and then protect moulding lead the hook-like moulding of core 4 completely when using with moulding lead 4 front end parallel and level at least.

Still be provided with rearmounted light source 6 in guide probe 1 rear end or screens handle 2, be provided with optic fibre 5 in the guide probe 1, the rear end of optic fibre 5 links to each other with rearmounted light source 6, and the front end of optic fibre extends to guide probe 1 front end and fixes, and optic fibre 5 and guide probe 1 can be along moulding leading 4 axial displacement of core, and rearmounted light source 6 sends light and passes through optic fibre transmission to guide probe 1 front end. The rear light source 6 can be an LED lamp, is connected with a battery, and controls the opening and closing of the rear light source 6 through a rear light source switch.

In order to enable the guide probe 1 to better slide into the glottis when the shaping guide core 4 is drawn out, preferably, the front end of the guide probe 1 has elasticity, when the front end of the guide probe 1 is flush with the front end of the shaping guide core 4, the guide probe 1 is smoothly wrapped on the periphery of the shaping guide core 4, and when the front end of the guide probe 1 is released forwards relative to the front end of the shaping guide core 4, the front end of the guide probe 1 is in a hook shape. Because the front end of the guide probe tube 1 has pretension, the guide probe tube is in a preset bending form without the restriction of the shaping guide core 4, and can be bent according to the pretension angle after being released in the intubation process, so that the guide probe tube enters the glottis at a more adaptive angle, the intubation success rate is improved, and the tissue damage is reduced.

Under the condition of difficult glottic exposure of a tracheal cannula, the tube core of the outer sleeve guide type tracheal cannula is inserted into the tracheal catheter 8 for hook-shaped shaping, the tube core is directly placed under the laryngoscope (common intubation method) or without other intubation tools (optical rod intubation method), the rear light source switch is turned on, the visible optical fiber 5 indicates the body surface light of the neck part and adjusts the position, an operator can indirectly confirm the position of the front end of the guide tracheal catheter 1 in the airway through the light spot projected by the optical fiber on the body surface of the neck part, and the front end of the tracheal catheter 8 is positioned in front of the glottic after crossing the epiglottis; then, the clamping handle 2 at the rear end of the guide probe 1 is slid until the guide probe is clamped at the opening of the tracheal catheter 8, so that the guide probe 1 enters the glottis under direct vision and enters the trachea 10 for a certain anti-drop depth; then the fixed handle 3 is pulled to draw out the shaping guide core 4 upwards, and the clamping handle 2 slides downwards along the situation to enable the guide probe tube 1 and the tracheal catheter 8 to be sent into the glottis; finally, the tracheal catheter 8 is fixed, the clamping handle 2 is pulled out, the guide probe 1 is removed, and the intubation is finished at the moment.

This embodiment is through setting up rearmounted light source 6 and optic fibre 5, through rearmounted light source 6 and optic fibre 5's guide effect, makes light throw to the tube core front end to its light spot of throwing at the neck body surface can help the indirect position of judging guide probe front end in the air flue of operating personnel, realizes the optical wand locate function of guide probe.

Example 3

As shown in fig. 3, an outer sleeve guiding type tracheal intubation tube core comprises a shaping guide core 4, wherein a fixed handle 3 is arranged at the rear end of the shaping guide core 4, a hollow guiding probe tube 1 is wrapped on the periphery of the shaping guide core 4, a clamping handle 2 is detachably connected to the rear end of the guiding probe tube 1, a through hole is formed in the center of the clamping handle 2 in a penetrating mode, the clamping handle through hole is communicated with the guiding probe tube 1, and the outer diameter of the fixed handle 3 is larger than the diameter of the clamping handle through hole; when using, moulding lead 4 front ends can penetrate screens handle 2 and guide and visit in the pipe 1 and can visit 1 axial displacement along the guide, and when fixed handle 3 contacted screens handle 2, the front end of guide and visiting 1 makes guide and visit pipe 1 and can wrap up moulding lead 4 and then protect moulding lead the hook-like moulding of core 4 completely when using with moulding lead 4 front end parallel and level at least.

For the condition that conveniently observes endotracheal tube 8 and get into trachea 10, still be provided with camera 7 at moulding guide core 4 front end, camera 7 and video switch, video power and video display subassembly are connected, and video switch and video power set up on setting up on screens handle 2 or on the external video device through the extension cord connection to observe the real-time status that endotracheal tube 8 got into through the video display subassembly.

For convenient observation, in this embodiment, camera 7 has the light source of making a video recording, and the light source of making a video recording is connected with light source switch, the light source power of making a video recording, and light source switch and the light source power of making a video recording setting are on screens handle 2 or on the external video unit through extension line connection, can make the camera be in bright environment through the light source of making a video recording to obtain better shooting effect.

Under the condition that glottis is exposed and difficult to intubate, the tracheal catheter 8 is inserted into the outer sleeve guide type tracheal catheter core to be shaped like a hook, the tracheal catheter is directly placed in the body through laryngoscope photopic vision (a common intubation method) or without other intubation tools, a video switch and a camera light source switch are turned on, the light indication of a visible camera light source on the body surface of the neck and the front-end real-time video transmitted by a front-end camera 7 are displayed, the position is adjusted, the position of the front end of the guide exploring tube 1 in an airway is directly confirmed through the video of the camera or indirectly confirmed through the light of the camera light source on the body surface of the neck, and the front end of the tracheal catheter 8 is positioned in front of the glottis. Sliding a clamping handle 2 at the rear end of the guide probe 1 until the guide probe is clamped at the opening of the tracheal catheter 8, so that the guide probe 1 enters a glottis under the indication of a front-end video or body surface light and shadow and enters the trachea 10 for a certain anti-falling depth; then the fixed handle 3 is pulled to draw out the shaping guide core 4 upwards, and the clamping handle 2 slides downwards along the situation to enable the guide probe tube 1 and the tracheal catheter 8 to be sent into the glottis; finally, the tracheal catheter 8 is fixed, the clamping handle 2 is pulled out, the guide probe 1 is removed, and the intubation is finished at the moment.

This embodiment is through increasing the camera device at the guide probe front end to transmit the image that the camera was shot to external display device, and then can help operating personnel directly to judge the position of guide probe 1 front end in the air flue, realize the video positioning function of guide probe 1.

Example 4

As shown in fig. 4, an outer sleeve guiding type tracheal intubation tube core comprises a shaping guide core 4, wherein a fixed handle 3 is arranged at the rear end of the shaping guide core 4, a hollow guiding probe tube 1 is wrapped on the periphery of the shaping guide core 4, a clamping handle 2 is detachably connected to the rear end of the guiding probe tube 1, a through hole is formed in the center of the clamping handle 2 in a penetrating mode, the clamping handle through hole is communicated with the guiding probe tube 1, and the outer diameter of the fixed handle 3 is larger than the diameter of the clamping handle through hole; when using, moulding lead 4 front ends can penetrate screens handle 2 and guide and visit in the pipe 1 and can visit 1 axial displacement along the guide, and when fixed handle 3 contacted screens handle 2, the front end of guide and visiting 1 makes guide and visit pipe 1 and can wrap up moulding lead 4 and then protect moulding lead the hook-like moulding of core 4 completely when using with moulding lead 4 front end parallel and level at least.

Referring to fig. 6, under the circumstance that the glottis is exposed and difficult to intubate, the tube core of the outer sleeve guiding type tracheal intubation of the embodiment is inserted into the tracheal catheter 8 for hook-shaped shaping, and is directly placed in the trachea cannula through laryngoscope photopic vision (a common intubation method) or without other intubation tools, a video switch and a rear light source switch are turned on, a front-end real-time video transmitted by a front-end camera 7 can be seen, the position is adjusted, and the guiding intubation 1 directly or indirectly confirms to enter the glottis under the indication of the front-end video or body surface light and shadow and enters the trachea 10 for a certain anti-dropping depth. Sliding a clamping handle 2 at the rear end of the guide probe 1 until the guide probe is clamped at the opening of the tracheal catheter 8, so that the guide probe 1 enters a glottis under the indication of a front-end video or body surface light and shadow and enters the trachea 10 for a certain anti-falling depth; then the fixed handle 3 is pulled to draw out the shaping guide core 4 upwards, and the clamping handle 2 slides downwards along the situation to enable the guide probe tube 1 and the tracheal catheter 8 to be sent into the glottis; finally, the tracheal catheter 8 is fixed, the clamping handle 2 is pulled out, the guide probe 1 is removed, and the intubation is finished at the moment.

Example 5

As shown in fig. 5, an outer sleeve guiding type tracheal intubation tube core comprises a shaping guide core 4, wherein a fixed handle 3 is arranged at the rear end of the shaping guide core 4, a hollow guiding probe tube 1 is wrapped on the periphery of the shaping guide core 4, a clamping handle 2 is detachably connected to the rear end of the guiding probe tube 1, a through hole is formed in the center of the clamping handle 2 in a penetrating mode, the clamping handle through hole is communicated with the guiding probe tube 1, and the outer diameter of the fixed handle 3 is larger than the diameter of the clamping handle through hole; when using, moulding lead 4 front ends can penetrate screens handle 2 and guide and visit in the pipe 1 and can visit 1 axial displacement along the guide, and when fixed handle 3 contacted screens handle 2, the front end of guide and visiting 1 makes guide and visit pipe 1 and can wrap up moulding lead 4 and then protect moulding lead the hook-like moulding of core 4 completely when using with moulding lead 4 front end parallel and level at least.

The rear end of the guide probe tube 1 or the clamping handle 2 is also provided with a rear light source 6, the guide probe tube 1 is made of light guide materials, and light of the rear light source 6 is transmitted to the front end of the guide probe tube 1 through the guide probe tube 1. The rear light source 6 can be an LED lamp, is connected with a battery, and controls the opening and closing of the rear light source 6 through a rear light source switch.

Under the condition of difficult glottic exposure of the tracheal intubation, the tube core of the outer sleeve guide type tracheal intubation is inserted into the tracheal catheter 8 for hook-shaped shaping, the tube core is directly inserted into the tracheal catheter 8 under the clear view of a laryngoscope (a common intubation method) or without other intubation tools (a light rod intubation method), a rear light source switch is turned on, the visible optical fiber 5 indicates the body surface light of the neck part and adjusts the position, an operator can indirectly confirm the position of the front end of the guide intubation 1 in the airway through a light spot projected by the guide intubation 1 on the body surface of the neck part, and the front end of the tracheal catheter 8 is positioned in front of the glottic after crossing the epiglottis; then, the clamping handle 2 at the rear end of the guide probe 1 is slid until the guide probe is clamped at the opening of the tracheal catheter 8, so that the guide probe 1 enters the glottis under direct vision and enters the trachea 10 for a certain anti-drop depth; then the fixed handle 3 is pulled to draw out the shaping guide core 4 upwards, and the clamping handle 2 slides downwards along the situation to enable the guide probe tube 1 and the tracheal catheter 8 to be sent into the glottis; finally, the tracheal catheter 8 is fixed, the clamping handle 2 is pulled out, the guide probe 1 is removed, and the intubation is finished at the moment.

The embodiment is through setting up rearmounted light source 6 and making the guide probe 1 by the leaded light material, through rearmounted light source 6 and the guide effect of guide probe 1, makes light throw to the tube core front end to its light spot of throwing at the neck body surface can help the indirect position of judging guide probe front end in the air flue of operating personnel, realizes the optical wand locate function of guide probe.

Claims

1. The utility model provides an overcoat direction formula trachea cannula tube core, leads the core including moulding, moulding lead the core rear end and be provided with fixed handle, its characterized in that: the periphery of the shaping guide core is wrapped with a hollow guide probe tube, the rear end of the guide probe tube is detachably connected with a clamping handle, a through hole is formed in the center of the clamping handle in a penetrating mode, the through hole of the clamping handle is communicated with the guide probe tube, and the outer diameter of the fixed handle is larger than the diameter of the through hole of the clamping handle; when the plastic guide core is used, the front end of the plastic guide core can penetrate into the clamping handle and the guide probe tube and can move along the axial direction of the guide probe tube.

2. The casing-guided endotracheal tube core according to claim 1, characterized in that: the front end of the guide probe is provided with a front light source, the front light source is connected with a front light source switch and a front light source power supply, and the front light source switch and the front light source power supply are arranged at the rear end of the guide probe or on the clamping handle.

3. The casing-guided endotracheal tube core according to claim 1, characterized in that: the rear end of the guide probe tube or the clamping handle is internally provided with a rear light source, the guide probe tube is internally provided with an optical fiber, the rear end of the optical fiber is connected with the rear light source, the front end of the optical fiber extends to the front end of the guide probe tube and is fixed, and the optical fiber and the guide probe tube can move along the axial direction of the shaping guide core.

4. The casing-guided endotracheal tube core according to claim 1, characterized in that: a rear light source is arranged at the rear end of the guide probe tube or in the clamping handle, and the guide probe tube is made of light guide materials.

5. The casing-guided endotracheal tube core according to claim 1, characterized in that: moulding lead core front end still is provided with the camera, the camera is connected with video switch, video power supply and video display subassembly, video switch and video power supply set up on the screens handle or on the external video unit through the extension line connection.

6. The housing-guided endotracheal tube core of claim 5, characterized in that: the camera head has the light source of making a video recording, the light source of making a video recording with make a video recording light source switch, make a video recording light source power connection, make a video recording light source switch and make a video recording light source power setting are on the screens handle or through the external video unit of extension line connection.

7. The casing-guided endotracheal tube core according to any one of claims 1 to 6, characterized in that: the front end of the guide probe tube is elastic, when the front end of the guide probe tube is flush with the front end of the shaping guide core, the guide probe tube is smoothly wrapped on the periphery of the shaping guide core, and when the front end of the guide probe tube is released forwards relative to the front end of the shaping guide core, the front end of the guide probe tube is in a hook shape.

8. The casing-guided endotracheal tube core according to any one of claims 1 to 6, characterized in that: the guide probe is made of plastic.

9. The casing-guided endotracheal tube core according to any one of claims 1 to 5, characterized in that: the shaping guide core is made of metal.