CN211584774U - Double-cavity bronchial cannula - Google Patents

Abstract

The utility model provides a double-cavity bronchial cannula, which comprises a main trachea and a bronchial tube, wherein the bronchial tube is provided with a main tube section which is arranged side by side with the main trachea and a flexible tube section which is communicated with the far end of the main tube section, the flexible tube section is bent and extended relative to the far end of the main tube section, the flexible tube section is constructed to be capable of generating elastic deformation, and the driving piece drives the flexible tube section to be converted between an inclined state and an upright state; therefore, the glottis can be more easily accessed during intubation, the intubation time is shortened, and the survival rate of patients is improved; and the damage of the bronchus air outlet to the tracheal wall of the patient during intubation can be reduced.

Description

Double-cavity bronchial cannula

Technical Field

The utility model belongs to the intubate field, concretely relates to two-chamber trachea cannula.

Background

The double-cavity trachea cannula is used for surgical operation, is suitable for inserting a left or right bronchus, and can realize ventilation of any lung so as to confirm that the airway of the left lung or the right lung is unobstructed; as shown in fig. 1, a visible dual-lumen bronchial cannula structure in the existing market comprises a main trachea 1, a bronchus 2, a tracheal airbag 11 and a bronchial blue airbag 23, wherein the main trachea 1 and the bronchus 2 are connected side by side and integrally, the tracheal airbag 11 is communicated with an inflation connector of the main trachea airbag, the bronchial blue airbag 23 is communicated with the bronchial inflation structure, one end of the main trachea and one end of the bronchus are respectively provided with a main trachea connector and a bronchial connector, the other end of the main trachea and a bronchial outlet are formed, an accommodating cavity for accommodating a camera module is formed on the inner wall of the main trachea, the camera module comprises a camera arranged at the outlet of the main trachea and a connecting line arranged inside the main trachea, as shown in fig. 1, the existing distal bronchial tube body is bent and extended relative to the main trachea, so that the blue airbag of the distal tube body of the rear trachea of the dual-lumen tracheal cannula is inflated and fixed in place, the ventilation is carried out through the main air pipe body while the left lung or the right lung is sealed; however, the bleeding complications of the existing double-lumen bronchial cannula fed back by doctors are high, and the bleeding complications occur because the far-side tube body of the bronchus and the main tube section of the bronchus are bent at an angle of about 45 degrees to the left, and in the process of intubation, the gas outlet of the bronchus always pushes against the trachea wall, so that the mucosa of the bent gas outlet of the bronchus rubs against the trachea wall is bled.

SUMMERY OF THE UTILITY MODEL

To above technical problem, the utility model provides a two-chamber trachea cannula, this intubate includes:

the main gas pipe and the branch gas pipe are provided with a main pipe section arranged side by side with the main gas pipe and a flexible pipe section communicated with the far end of the main pipe section, the flexible pipe section is arranged in a bending and extending way relative to the far end of the main pipe section, and the flexible pipe section is constructed to be capable of generating elastic deformation;

a trachea airbag and a bronchus airbag, wherein the trachea airbag is arranged at the far side of the main trachea and the main tube section, and the bronchus airbag is arranged at the far side of the flexible tube section

A drive member that drives the flexible pipe section to transition between the inclined state and the upright state.

In some embodiments of the present invention, the flexible pipe section includes a flexible pipe body and an elastic member disposed in the flexible pipe body, and the driving member drives the flexible pipe body to switch between the inclined state and the upright state by driving the elastic member to deform.

In some embodiments of the present invention, the hardness of at least the distal end of the main tube section connected to the flexible tube section is greater than the hardness of the flexible tube section, so that the flexible tube section can rotate with the distal end of the main tube section as a support.

The utility model discloses some embodiments, the driving piece is a mobile setting stay cord in being responsible for the section, the one end and the elastic component of stay cord are connected, and the other end stretches out to be responsible for the section and supplies tensile operation.

In some embodiments of the present invention, the elastic member is at least one elastic rib formed on the flexible pipe body, one end of the elastic rib is connected to the flexible pipe body, and the other end of the elastic rib is connected to the pulling rope.

The utility model discloses some embodiments, the whole section tilt up for being responsible for of flexible body, the pipe wall of flexible pipe section is divided into ventral side pipe wall and dorsal side pipe wall in week, the elastic component sets up on the dorsal side pipe wall.

In some embodiments of the present invention, an inner wall of the main pipe section extending along the back side pipe wall forms an accommodating cavity for accommodating the pull rope; the elastic piece is at least one elastic rib embedded into the back side pipe wall, and the extending direction of the elastic rib is the same as that of the back side pipe wall.

In some embodiments of the present invention, the proximal end of the flexible tube segment is adhesively connected to the distal end of the main tube segment.

The utility model discloses some embodiments, flexible pipeline section adopts injection molding process to mould plastics and forms, be responsible for the section and adopt extrusion process to extrude and form.

In some embodiments of the present invention, the proximal end of the dual lumen bronchial cannula forms a positioning portion for positioning the pull cord.

In some embodiments of the present invention, the double-lumen bronchial cannula is a visible double-lumen bronchial cannula.

Compared with the prior art, the utility model discloses a set up the distal body of bronchus to the flexible body that can take place elastic deformation, so that it can take place the conversion between inclined position and upright position, so, in the process of doctor's leading-in intubate, the driving piece impels the flexible pipe section of bronchus front side to change from original inclined position to upright position, make it be upright state entering trachea wall, avoid current two-chamber trachea intubate because the gas outlet buckles to set up the condition that takes place trachea wall mucosa hemorrhage, when it reaches the protuberance, relax the driving piece and impel the flexible pipe section of bronchus to reset to inclined position from upright position, so, can get into the glottis more easily during the intubate, reduce intubate time, improve patient's survival rate; and the damage of the bronchus air outlet to the tracheal wall of the patient during intubation can be reduced.

Drawings

FIG. 1 is a schematic structural view of a dual lumen endotracheal tube provided in the prior art;

fig. 2 is a schematic structural view of a dual-lumen endotracheal tube provided by the present invention;

fig. 3 is an axial cross-sectional view of a distal tube of a bronchus provided by the present invention;

fig. 4 is a radial cross-sectional view of a dual lumen endotracheal tube provided by the present invention;

fig. 5 is a top view of the dual-lumen endotracheal tube provided by the present invention.

Detailed Description

The technical solution of the present invention or utility model will be further specifically described below by means of specific embodiments and with reference to the drawings of the specification;

in the description of the present invention, "at least one" means more than one unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "near", "far", "top", "inner", "outer", "upper" and "lower" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the present application, "proximal" and "proximal" should be interpreted as parts close to the operator (doctor), while "distal" and "distal" should be interpreted as parts distant from the doctor.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted" and "connected" should be interpreted broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through an intermediate medium, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The utility model provides a double-cavity bronchial cannula, which comprises a main trachea 1, a bronchus 2, a tracheal air bag 11 and a bronchial air bag 23;

as shown in fig. 1, the main trachea 1 and the branch trachea 2, the branch trachea 2 has a main tube segment 21 arranged side by side with the main trachea 1 and a flexible tube segment 22 connected with the distal end of the main tube segment 21, the flexible tube segment 22 is arranged in a bending and extending manner relative to the distal end of the main tube segment 21, i.e. the flexible tube segment 22 is equivalent to the main trachea 1 and the main tube segment 21 extending in a bending and extending manner towards the distal side, in addition, the distal side of the main trachea and the main tube segment is provided with a trachea gasbag 11, the distal side of the flexible tube segment is provided with a branch trachea gasbag 23, referring to fig. 4, the branch trachea gasbag is arranged in communication with a gasbag inflation cavity 231, and the trachea gasbag 11 is also arranged;

thus, referring to fig. 1, while the tracheal balloon 11 seals the trachea, the flexible tube segment 22, which is in an inclined state with respect to the main trachea 1, can enter the left lung or the right lung, and the bronchial balloon 23 is used for protecting the left lung or the right lung; considering that when the double-cavity bronchial cannula enters into the trachea, the bronchus air outlet 220 at the front side of the inclined flexible tube section inevitably rubs with the trachea wall to cause mucosal bleeding; in this regard, the present invention provides a flexible tube segment 22 configured to undergo elastic deformation that allows the flexible tube segment in an inclined position to move toward the distal longitudinal axis of the main tube segment 21, such that the flexible tube segment 22 can be converted from an inclined state to an upright state, and when a physician operates a dual lumen bronchial cannula, when the flexible tube segment 22 enters the trachea, the flexible tube segment is in the upright state, and the bronchial outlet at the distal end of the flexible tube segment 22 does not come into frictional contact with the tracheal wall; when the outlet of the bronchus reaches the hump, the flexible pipe section is restored to the original inclined state from the upright state, so that the ventilation of any lung is realized;

in the present embodiment, the "standing state" herein means that the flexible pipe section extends linearly or approximately linearly relative to the main pipe section; the term "inclined" as used herein means that the flexible tube section is bent relative to the main tube section when entering the lung; in order to facilitate insertion of the intubation tube into the trachea through the throat, the main trachea and the main tube segment of the conventional endotracheal intubation are integrally provided in an arc shape, and therefore, the upright state or the inclined state refers to the far end of the flexible tube segment relative to the main tube segment.

Referring to fig. 2, in the present embodiment, when the flexible pipe section is in an inclined state, an included angle of 45 ° is formed between the flexible pipe section and the main pipe section.

Referring to fig. 2 and 3, the present invention further provides a driving member 5, wherein the driving member 5 acts on the flexible pipe section 22 to enable the flexible pipe section to be converted between the inclined state and the upright state;

in the preferred embodiment of the present invention, the hardness of at least the distal end of the main tube section 21 connected to the flexible tube section 22 is greater than the hardness of the flexible tube section 22, so that the flexible tube section can rotate with the distal end of the main tube section as a support, and thus, when the distal side of the main tube section 21 is in the upright state, the driving member 5 drives the flexible tube section to rotate with the rigid distal end thereof as a fulcrum, thereby realizing the conversion between the inclined state and the upright state; optionally, the flexible pipe section is formed by injection molding through an injection molding process, the main pipe section is formed by extrusion through an extrusion process, and thus the hardness of the main pipe section extruded through the extrusion process is higher than that of the flexible pipe section extruded through the injection molding process, and thus the flexible pipe section can rotate towards the longitudinal axis direction by taking the far end of the main pipe section as a rigid support until the flexible pipe section and the main pipe section are in a linear extension state; in this embodiment, the proximal end of the flexible tube segment is adhesively connected to the distal end of the main tube segment, thereby forming an adhesive segment 7 between the flexible tube segment 22 and the main tube segment 21;

the utility model provides a flexible pipe section and driving piece can be realized through multiple structural style, in some embodiments of the utility model, the flexible pipe section 22 includes flexible pipe body and elastic component 3 arranged in the flexible pipe body, the driving piece 5 drives the flexible pipe body to move towards the direction of the far-side longitudinal axis of the main pipe section by driving the deformation of the elastic component 3, the direction movement towards the far-side longitudinal axis of the main pipe section here means to move from the inclined position relative to the far-side end of the main pipe section towards the upright position which is linearly arranged with the main pipe section;

optionally, the elastic member 3 is at least one elastic rib 3 formed on the flexible pipe body, one end of the elastic rib 3 is connected with the flexible pipe body, and the other end is connected with the driving member; optionally, the driving member 5 is a pulling rope movably disposed in the main tube segment, one end of the pulling rope 5 is connected to the elastic member 3, and the other end of the pulling rope extends out of the main tube segment 21 for stretching operation; preferably, in order to avoid the influence of the pulling rope on the ventilation process, in this embodiment, please refer to fig. 4 and 5, a longitudinally extending accommodating cavity 25 is formed in the wall of the main tube segment, the pulling rope 5 is movably accommodated in the accommodating cavity, an embedding cavity communicated with the accommodating cavity is formed in the flexible tube segment 22, an elastic rib 3 is embedded in the embedding cavity, one end of the elastic rib is fixed in the embedding cavity, the other end of the elastic rib is connected with one end of the pulling rope 5, and the other end of the pulling rope extends out of the main tube segment 21, so that a doctor stretches or loosens the pulling rope, and drives the flexible tube segment to deform through the elastic deformation of the elastic rib, thereby realizing the conversion between the upright state and the inclined state, and the elastic rib and the pulling rope are arranged on the inner walls of the main tube segment and the flexible tube segment;

specifically, the flexible pipe body is entirely inclined with respect to the main pipe segment, the pipe wall of the flexible pipe segment is circumferentially divided into a ventral pipe wall 222 and a dorsal pipe wall 221, and the elastic member 3 is disposed on the dorsal pipe wall 221; the inner wall of the main pipe section extending along the back side pipe wall forms a containing cavity 25 for containing the pull rope; the elastic part is at least one elastic rib 3 embedded in the back side pipe wall 221, and the extending direction of the elastic rib 3 is the same as that of the back side pipe wall 221;

optionally, the dual-lumen endotracheal tube provided in this embodiment further includes a positioning portion 8 for fixing the pulling rope, and when the pulling rope 5 stretches the flexible tube section to realize the conversion from the inclined state to the upright state, the pulling rope is fixed to the positioning portion, so that the flexible tube section is kept in the upright state, and when the flexible tube section needs to be introduced into the pulmonary tract, the fixing of the pulling rope is released, and the flexible tube section is reset from the upright state to the inclined state; optionally, the positioning portion is a clamping portion 8 formed at the proximal end of the double-lumen endotracheal tube, and when the flexible tube section is stretched by the pulling rope to realize the conversion from the inclined state to the upright state, the pulling rope is clamped at the clamping portion.

In this embodiment, the double-lumen bronchial cannula is a visible double-lumen bronchial cannula, and a camera assembly 6 is formed at the distal end of the main trachea 1, and includes a camera, a connecting wire, and the like;

the original natural state of the double-cavity tracheal cannula provided by the embodiment is the same as that of a common visible double-cavity tube, namely, the flexible tube section and the main tube section are arranged in a bent mode, when the cannula is required to be inserted, the pull rope is pulled to pull the outlet of the bronchial tube into an upright state in which the outlet of the bronchial tube and the main tube section are arranged in a straight line, then the tail end of the pull rope is clamped at the clamping position of the machine end, so that the outlet of the bronchial tube and the tube body are kept in a straight line state, after the cannula is inserted to the bulge, the pull rope is loosened, the outlet of the bronchial tube returns; the process is reversed during the tube drawing, and the process avoids the condition that mucosa bleeding occurs when the air outlet of the bronchus rubs the tracheal wall.

The utility model provides a flexible pipeline section adopts the mode of moulding plastics, and the softness is enough, so, reduces the stimulation to patient's paraesthesia nerve when the intubate, reduces the emergence of complication. .

The utility model can straighten the gas outlet of the bronchus in the original inclined state, and the bronchus can be more easily entered into the glottis during intubation, thereby reducing intubation time and improving the survival rate of patients; the air outlet of the bronchus can be straightened, and the damage to the tracheal wall of the patient is reduced during intubation.

In the description herein, references to the description of the terms "some embodiments," "examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A dual lumen bronchial cannula, the cannula comprising:

the main gas pipe (1) and the branch gas pipe (2), the branch gas pipe (2) is provided with a main pipe section (21) which is arranged side by side with the main gas pipe (1) and a flexible pipe section (22) which is communicated with the far end of the main pipe section (21), the flexible pipe section is arranged in a bending and extending way relative to the far end of the main pipe section, and the flexible pipe section is constructed to be capable of generating elastic deformation;

a trachea air bag (11) and a bronchus air bag (23), the trachea air bag is arranged at the far side of the main trachea and the main tube section, and the bronchus air bag is arranged at the far side of the flexible tube section

A drive member (5) which drives the flexible pipe section between the inclined state and the upright state.

2. The dual lumen bronchial cannula of claim 1, wherein the flexible tube segment comprises a flexible tube body and an elastic member (3) disposed within the flexible tube body, wherein the driving member drives the flexible tube body to shift between the inclined state and the upright state by driving the elastic member to deform.

3. The dual lumen bronchial cannula of claim 1, characterized in that the hardness of the main tube segment (21) at least at its distal end connected to the flexible tube segment (22) is greater than the hardness of the flexible tube segment (22) so that the flexible tube segment can rotate with the distal end of the main tube segment as a support.

4. The dual lumen bronchial cannula of claim 2, wherein the driving member is a pull cord movably disposed within the main tube segment, wherein one end of the pull cord is connected to the elastic member and the other end of the pull cord extends out of the main tube segment for stretching.

5. The dual lumen bronchial cannula of claim 2, wherein the elastic member is at least one elastic rib formed on the flexible tube body, the elastic rib having one end connected to the flexible tube body and the other end connected to the pull cord.

6. The dual lumen bronchial cannula of claim 5, wherein the wall of the flexible tubing segment is circumferentially divided into a ventral wall (222) and a dorsal wall (221), the resilient member being disposed on the dorsal wall.

7. The double-lumen bronchial cannula according to claim 4, characterized in that the inner wall of the main tube segment (21) extending along the dorsal tube wall forms a housing cavity (25) for housing the pull string; the elastic piece is at least one elastic rib embedded into the back side pipe wall, and the extending direction of the elastic rib is the same as that of the back side pipe wall.

8. The dual lumen bronchial cannula of claim 1, characterized in that the proximal end of the flexible tube segment is adhesively connected to the distal end of the main tube segment by an adhesive segment (7).

9. The dual lumen bronchial cannula of claim 7, wherein the flexible tubing segment is injection molded using an injection molding process and the main tubing segment is extruded using an extrusion process.

10. The double lumen bronchial cannula according to claim 4, characterized in that the proximal end of the double lumen bronchial cannula forms a positioning portion (8) for positioning the pull cord.

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