CN214912196U

CN214912196U - Trachea cannula device

Info

Publication number: CN214912196U
Application number: CN202121531219.6U
Authority: CN
Inventors: 续飞; 郭向阳
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-11-30
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses a tracheal intubation device, which comprises a flexible visual laryngoscope and an intubation mechanism; the flexible visual laryngoscope comprises a laryngoscope body and a guide tube, wherein the guide tube extends along the length direction of the laryngoscope body, the end part of the guide tube extends to the free end of the laryngoscope body, and the guide tube is provided with a guide cable traction slit extending along the length direction of the guide tube; the intubation mechanism includes a guide piece and a guide cable, wherein a guide slide hole is arranged in the guide piece, and the guide cable is configured to be matched with the guide tube and the guide slide hole. The guide cable of the tracheal intubation device can be matched with the guide tube and the guide sliding hole, so that the guide piece can move along the guide cable traction slit under the guide of the guide cable, the friction resistance of the guide piece moving can be effectively reduced by the guide cable which is easy to be separated from the guide cable traction slit, and the purpose of reducing the operation difficulty of tracheal intubation is achieved.

Description

Trachea cannula device

Technical Field

The utility model relates to a visual intubate laryngoscope field, more specifically relates to an endotracheal intubation device.

Background

The flexible visual laryngoscope has the advantages of flexibility of the electronic bronchoscope and wide visual field of the rigid visual laryngoscope, and the convenience of using the visual laryngoscope to perform tracheal catheter operation is greatly improved.

The body of the existing soft visual laryngoscope is provided with a guide groove, and a guide piece connected with an endotracheal tube can slide in the guide groove. Firstly, the endoscope body is inserted into the pharyngeal cavity of a patient and is aligned with the glottis of the patient, then the guide piece is inserted into the guide groove on the endoscope body, then the guide piece is pushed, so that the guide piece carries the tracheal catheter into the trachea, and then the guide piece and the endoscope body are taken out, namely the intubation operation of the tracheal catheter is completed. The guiding groove of the soft visual laryngoscope with the structure can be directly arranged on the endoscope body or arranged in a pipeline attached to the outer surface of the endoscope body.

Because the guide piece and the guide groove are directly matched together in the process of inserting the tracheal catheter, the friction resistance between the guide piece and the guide groove is large, and the problem that the guide piece is difficult to slide even at the bending part of the guide groove can occur, so that the difficulty of inserting the tracheal catheter is increased.

Therefore, how to provide an endotracheal intubation device with low operation difficulty becomes a technical problem to be solved urgently in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new technical scheme of trachea cannula device that the operation degree of difficulty is low.

According to a first aspect of the present invention, a tracheal intubation device is provided.

The tracheal intubation device comprises a flexible visible laryngoscope and an intubation mechanism; wherein the content of the first and second substances,

the flexible visual laryngoscope comprises a laryngoscope body and a guide tube, wherein the guide tube extends along the length direction of the laryngoscope body, the end part of the guide tube extends to the free end of the laryngoscope body, and the guide tube is provided with a guide cable traction slit extending along the length direction of the guide tube;

the intubation mechanism comprises a guide piece and a guide cable, wherein a guide sliding hole is formed in the guide piece, and the guide cable is arranged to be matched with the guide tube and the guide sliding hole.

Optionally, the guide tube is a hose; alternatively, the first and second electrodes may be,

the hardness of the side edge of the guide pipe which forms the guide cable traction slit is less than that of the rest part of the guide pipe.

Optionally, the guide tube is attached to an outer surface of the scope body.

Optionally, a guide groove is arranged on the mirror body, and the guide tube is fixedly connected with the guide groove.

Optionally, the guide tube further includes a flexible closing flap, one end of the flexible closing flap is connected to one side edge of the guide cable traction slit in the width direction, and the other end of the flexible closing flap covers the guide cable traction slit; alternatively, the first and second electrodes may be,

the guide tube further comprises flexible closed flaps which are arranged in pairs, the two flexible closed flaps in pairs are respectively connected with the edges of the two sides of the guide cable traction slit in the width direction, and the free ends of the two flexible closed flaps are oppositely arranged or the free ends of the two flexible closed flaps are laminated together.

Optionally, the guide rope traction slit is spirally arranged.

Optionally, an opening of one end of the guide slide hole is located at a beginning end of the guide member.

Optionally, the diameter of the beginning of the guide gradually decreases in a direction away from the end of the guide.

Optionally, the intubation mechanism further includes an endotracheal tube, the endotracheal tube is sleeved on the guide piece, the endotracheal tube is detachably connected to the guide piece, and a start end of the guide piece extends out of one end of the endotracheal tube inserted into the glottis.

Optionally, a tongue depressor is further arranged at the free end of the lens body.

The guide cable of the tracheal intubation device can be matched with the guide tube and the guide sliding hole, so that the guide piece can move along the guide cable traction slit under the guide of the guide cable, the friction resistance of the guide piece moving can be effectively reduced by the guide cable which is easy to be separated from the guide cable traction slit, and the purpose of reducing the operation difficulty of tracheal intubation is achieved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural view of a flexible visual laryngoscope of an endotracheal intubation device of the present disclosure.

Fig. 2 is a schematic structural diagram of an intubation mechanism embodiment of the endotracheal intubation device according to the present disclosure.

Fig. 3 is a cross-sectional view of an intubation mechanism embodiment of the endotracheal intubation device of the present disclosure.

The figures are labeled as follows:

the endoscope comprises an endoscope body-1, a guide tube-2, a guide rope traction slit-20, a guide piece-3, a guide sliding hole-30, a guide rope-4, a tracheal catheter-5 and a tongue depressor-6.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

As shown in fig. 1 to 3, the endotracheal intubation device of the present disclosure includes a flexible visual laryngoscope and an intubation mechanism.

The soft visual laryngoscope comprises a laryngoscope body 1 and a guide tube 2. The guide tube 2 extends along the length direction of the scope 1, the end of the guide tube 2 extends to the free end of the scope 1, and the guide tube 2 is provided with a guide cable drawing slit 20 extending along the length direction of the guide tube 2. The guide tube 2 has a guide cable channel therein, and the guide cable 4 is movable within the guide cable channel.

The connection between the guide tube 2 and the scope body 1 can be realized in various ways. For example, the guide tube 2 is attached to the outer surface of the scope 1 such that the guide tube 2 protrudes outward from the outer surface of the scope 1. For example, the guide tube 2 is mounted in a groove of the scope 1 such that the guide tube 2 is embedded in the scope 1 and the guide tube 2 does not protrude from the outer surface of the scope 1.

The cannula mechanism comprises a guide 3 and a guide cable 4. A guide slide hole 30 is provided in the guide 3. The guide slide hole 30 may extend from the start end of the guide 3 to the end of the guide 3, and both end openings of the guide slide hole 30 may be located on the side wall surface of the guide 3. The start end of the guide 3 is one end of the guide 3 inserted into the glottis, and the end of the guide 3 is the other end of the guide 3 opposite to the start end of the guide 3. The guide cable 4 may be used to mate with the guide tube 2 and the guide slide hole 30. The guide slide hole 30 is normally slidably fitted to the guide cable 4.

In practice, the width of the guide wire pulling slit 20 and the diameter of the guide wire 4 may be selected differently depending on the design of the guide wire pulling slit 20. For example, if the opening portion of the guide cord pulling slit 20 has good flexibility, the diameter of the guide cord 4 may be greater than or equal to the width of the guide cord pulling slit 20. For another example, if the opening portion of the guide wire drawing slit 20 has a large rigidity, the diameter of the guide wire 4 may be smaller than or equal to the width of the guide wire drawing slit 20.

Further, the size of the start of the guide 3 may be set to be larger than the width of the guide wire drawing slit 20 to avoid a problem that the start of the guide 3 protrudes from the guide wire drawing slit 20 into the guide tube 2 to cause an increase in resistance to movement of the guide 3.

The usage of the tracheal intubation device of the present disclosure may be as follows:

firstly, the endoscope body 1 of the soft visual laryngoscope extends into the pharyngeal cavity of a patient, the guide tube 2 enters the pharyngeal cavity of the patient along with the endoscope body 1, and the front end of the endoscope body is adjusted through the angle trigger, so that the front ends of the endoscope body 1 and the guide tube 2 are aligned to the glottis of the patient. The guide cable 4 is then inserted from one end of the guide tube 2 and extends from the side of the guide tube 2 adjacent the free end of the scope 1, the end of the guide cable 4 extending out of the guide tube 2 being accessible to the glottis. Then, the end of the guide wire 4 remote from the glottis is inserted into the guide slide hole 30 of the guide member 3 connected or sleeved with the endotracheal tube. At this time, both ends of the guide wire 4 are fitted to the guide tube 2 and the guide slide hole 30, respectively. Then, the guide 3 is moved along the guide wire 4 by pushing the endotracheal tube, and a pulling force is applied to the guide wire 4 in the direction of the outer side of the guide wire pulling slit 20 during the movement of the guide 3, so that the guide wire 4 is pulled out of the guide tube 2 from the guide wire pulling slit 20 by the above-mentioned pulling force. When the guide 3 is moved to the end of the guide tube 2 at the free end of the scope 1, both the guide 3 and the guide cable 4 are separated from the guide tube 2. Then, continuing to push the endotracheal tube, the guide 3 slides along the guide cord 4 with the endotracheal tube into the glottis and into the trachea. Finally, the guide rope 4 and the guide piece 3 are pulled out of the endotracheal tube, and the soft visual laryngoscope is withdrawn, thus completing the intubation of the endotracheal tube.

In the actual operation process, the guide cable 4 can also be inserted into the guide tube 2 in advance, and then the guide cable 4 is inserted into the glottis of the patient through the operation of entering the pharyngeal cavity of the patient through the soft visual laryngoscope. The assembly of the guide 3 with the guide cable 4 and the subsequent operations are then carried out.

The guide rope 4 of the tracheal intubation device can be matched with the guide pipe 2 and the guide sliding hole 30, so that the guide piece 3 can move along the guide rope traction slit 20 under the guide of the guide rope 4, the guide rope 4 which is easy to be separated from the guide rope traction slit 20 can effectively reduce the friction resistance of the movement of the guide piece 3, and the purpose of reducing the operation difficulty of tracheal intubation is achieved.

In one embodiment of the endotracheal intubation device of the present disclosure, the guide tube 2 is a flexible tube. The guide tube 2 in the form of a hose can achieve a large elastic deformation so that the guide wire 4 can be more easily pulled out of the guide tube 2 from the guide wire drawing slit 20. The hose may be made of silicone or rubber, for example.

In one embodiment of the endotracheal intubation device according to the present disclosure, the side of the guide tube 2 constituting the guide wire drawing slit 20 has a hardness less than that of the remaining portion of the guide tube 2. Different parts of the guide pipe 2 with the structure have different hardness, so that the part of the guide rope traction slit 20 with lower hardness on the guide pipe 2 keeps larger elastic deformation capacity, and meanwhile, the rest part with higher hardness on the guide pipe 2 can realize better supporting effect.

In one embodiment of the endotracheal intubation device of the present disclosure, the guide tube 2 is attached on the outer surface of the scope body 1. In this embodiment, the guide tube 2 projects outwardly from the surface of the scope body 1. The attachment of the guide tube 2 described above may be achieved by plastic welding, gluing or clamping.

In one embodiment of the endotracheal intubation device of the present disclosure, the scope body 1 is provided with a guide groove (not shown), and the guide tube 2 is fixedly connected to the guide groove. In this embodiment, the guide tube 2 is embedded in the scope 1, and does not protrude from the outer surface of the scope 1. The fixed connection can be realized by plastic welding, gluing or integral forming and the like.

In one embodiment of the endotracheal intubation device of the present disclosure, the guide tube 2 further comprises a flexible closure flap (not shown in the figures). One end of the flexible closing flap is connected to one side edge in the width direction of the guide cord drawing slit 20, and the other end of the flexible closing flap covers the guide cord drawing slit 20. The flexible closure flap may be, for example, silicone or rubber. In this embodiment, the guide wire 4 is pushed open by the pulling force of the guide member 3 to pull the guide tube 2 out of the guide wire drawing slit 20. The provision of a flexible closure flap facilitates the controlled exit of the guide cable 4 out of the guide cable pulling slit 20 during insertion into the guide tube 2 and more controlled exit from the guide tube 2 when the guide cable 4 is subjected to a pulling force from the guide 3.

In one embodiment of the endotracheal intubation device according to the present disclosure, the guide tube 2 further comprises flexible closure flaps (not shown in the figures) arranged in pairs. The flexible closure flap may be, for example, silicone or rubber. The two flexible closed flaps in pair are respectively connected with the two side edges of the guide cable traction slit 20 in the width direction, and the free ends of the two flexible closed flaps are oppositely arranged or the free ends of the two flexible closed flaps are laminated together. When the free ends of the two flexible closed flaps are opposite, a gap smaller than the width of the guide rope traction slit 20 can be formed between the free ends of the two flexible closed flaps; when the free ends of the two flexible closure flaps are laminated together, the surfaces of the two flexible closure flaps are opposed. In this embodiment, the guide wire 4 is pulled out of the guide tube 2 from the guide wire pulling slit 20 by pushing open the two flexible closure flaps by the pulling force of the guide member 3. The provision of a flexible closure flap facilitates the controlled exit of the guide cable 4 out of the guide cable pulling slit 20 during insertion into the guide tube 2 and more controlled exit from the guide tube 2 when the guide cable 4 is subjected to a pulling force from the guide 3.

In one embodiment of the endotracheal intubation device of the present disclosure, the guide wire traction slit 20 is helically disposed. The spirally arranged guide wire drawing slit 20 is advantageous in improving the smoothness of the movement of the guide member 3 by adjusting the position of the guide member 3 when the guide member 3 moves along the guide wire drawing slit 20, and more conveniently drawing the guide wire 4 out of the guide wire drawing slit 20.

In one embodiment of the endotracheal intubation device according to the present disclosure, in order to improve the smoothness of movement of the guide 3, the opening at one end of the guide slide hole 30 is located at the start end of the guide 3.

In one embodiment of the endotracheal intubation device according to the present disclosure, the diameter of the beginning of the guide 3 gradually decreases in a direction away from the end of the guide 3. For example, the end of the guide 3 entering the glottis may be frustoconical. The guide 3 of this structure can slide more smoothly along the guide cord 4 and enter the glottis more easily along the guide cord 4.

In one embodiment of the endotracheal intubation device of the present disclosure, the intubation mechanism further includes an endotracheal tube 5 for more convenient intubation. The tracheal tube 5 is sleeved on the guide piece 3, the tracheal tube 5 is detachably connected with the guide piece 3, and the initial end of the guide piece 3 extends out of one end of the tracheal tube 5 inserted into the glottis.

In one embodiment of the endotracheal intubation device of the present disclosure, a tongue depressor 6 is further provided on the free end of the scope body 1. The tongue depressor 6 is provided to facilitate the lifting of the drooping epiglottis to expose the glottis, making the operation simpler. Moreover, the soft visual laryngoscope with the tongue depressor 6 can increase the visual field at the front end of the laryngoscope in the process of inserting the mouth and the pharynx, and the structure of the mouth and the pharynx can be distinguished more easily.

Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A trachea cannula device is characterized by comprising a flexible visual laryngoscope and a cannula mechanism; wherein the content of the first and second substances,

2. The endotracheal intubation device according to claim 1, wherein the guide tube is a flexible tube; alternatively, the first and second electrodes may be,

3. An endotracheal intubation device according to claim 1, wherein the guide tube is attached on an outer surface of the scope body.

4. The endotracheal intubation device according to claim 1, wherein a guide channel is provided on the scope body, and the guide tube is fixedly connected to the guide channel.

5. The endotracheal intubation device according to claim 1, wherein the guide tube further includes a flexible closure flap, one end of which is connected to one widthwise side edge of the guide cable drawing slit, and the other end of which covers the guide cable drawing slit; alternatively, the first and second electrodes may be,

6. An endotracheal intubation device according to claim 1, wherein the guide cable traction slit is helically arranged.

7. An endotracheal intubation device according to claim 1, wherein the opening of one end of the guide slide hole is located at the beginning of the guide.

8. An endotracheal intubation device according to claim 1, wherein the diameter of the beginning of the guide gradually decreases in a direction away from the end of the guide.

9. An endotracheal intubation device according to claim 1, wherein said intubation mechanism further comprises an endotracheal tube which is fitted over said guide member and is detachably connected thereto, and wherein a start end of said guide member protrudes beyond an end of said endotracheal tube inserted into the glottis.

10. An endotracheal intubation device according to any one of claims 1 to 9, characterized in that a tongue depressor is further provided on the free end of the scope body.