CN212327134U

CN212327134U - Double-cavity bronchial cannula

Info

Publication number: CN212327134U
Application number: CN202020243310.7U
Authority: CN
Inventors: 郝巍; 许志娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2021-01-12
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a double-cavity bronchial cannula, which comprises a first catheter and a second catheter, wherein the outer surface of the first catheter is provided with an installation sleeve for sleeving the second catheter, the installation sleeve is made of flexible material, and the upper end of the installation sleeve is provided with a sealing device; the first guide pipe is a bronchial guide pipe, the second guide pipe is a main tracheal guide pipe and comprises a vertical section and a bending section, a first air bag is arranged at the bottom of the vertical section of the first guide pipe and fixedly installed on the outer surfaces of the first guide pipe and the installation sleeve, the first air bag is communicated with a first inflation valve, the bending section of the first guide pipe is fixedly installed with a second air bag, and the second air bag is communicated with a second inflation valve; or the first guide pipe is a main tracheal guide pipe, the bottom of the first guide pipe is provided with a first air bag which is communicated with a first inflation valve, the second guide pipe is a bronchial guide pipe, the second guide pipe comprises a vertical section and a bending section, the bending section of the second guide pipe is fixedly provided with a second air bag, and the second air bag is communicated with a second inflation valve.

Description

Double-cavity bronchial cannula

Technical Field

The utility model belongs to the technical field of medical equipment, especially, relate to a two-chamber trachea cannula.

Background

A double lumen bronchial cannula is a medical device for creating an artificial airway through which a passageway is created between the body and a ventilator. It belongs to a unilateral lung ventilation tool, which can be arranged in a left or right main bronchus to carry out unilateral lung isolation and unilateral lung ventilation.

When the double-cavity bronchial intubation is used for operation, muscle relaxing medicines are required to be injected into a patient, so that the patient cannot breathe independently, a catheter needs to be inserted quickly, and asphyxia is avoided. Because the traditional double-cavity bronchial cannula is thick, the difficulty in inserting the cannula is high, the time consumption of the cannula operation is long frequently, and the suffocation danger of a patient is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a double-cavity bronchial cannula which is thin when being inserted, is easy to be inserted and is not easy to suffocate people.

In order to solve the above problems, the utility model adopts the following technical proposal:

a double-cavity bronchial cannula comprises a first catheter and a second catheter, wherein an installation sleeve for sleeving the second catheter is arranged on the outer surface of the first catheter, the installation sleeve is made of flexible materials, and a sealing device is arranged at the upper end of the installation sleeve;

the first guide pipe is a bronchial guide pipe, the second guide pipe is a main tracheal guide pipe and comprises a vertical section and a bending section, a first air bag is arranged at the bottom of the vertical section of the first guide pipe and fixedly installed on the outer surfaces of the first guide pipe and the installation sleeve, the first air bag is communicated with a first inflation valve, the bending section of the first guide pipe is fixedly installed with a second air bag, and the second air bag is communicated with a second inflation valve;

or the first guide pipe is a main tracheal guide pipe, a first air bag is arranged at the bottom of the first guide pipe, the first air bag is fixedly installed on the outer surfaces of the first guide pipe and the installation sleeve, the first air bag is communicated with a first inflation valve, the second guide pipe is a bronchial guide pipe, the second guide pipe comprises a vertical section and a bending section, a second air bag is fixedly installed on the bending section of the second guide pipe, and the second air bag is communicated with a second inflation valve.

As a further improvement of the present invention, the mounting sleeve comprises two arc-shaped sub-members symmetrically fixed on the first conduit, two the sub-members deviate from the one end of the first conduit is fixedly connected through an elastic film.

As a further improvement of the utility model, the sub-piece and the elastic film are medical rubber.

As a further improvement of the utility model, the mounting sleeve is made of medical rubber, is of a tubular structure and has elasticity, and is in a shrinkage state in a free state.

As a further improvement of the present invention, a first air passage for communicating with the first air bag is provided in the side wall of the first conduit, and the first inflation valve passes through the conduit and the first air passage and the first air bag communicates.

As a further improvement of the present invention, a second air passage communicated with the second air bag is provided in the side wall of the bronchial tube, and the second inflation valve passes through the tube and the second air passage is communicated with the second air bag.

As a further improvement of the utility model, the first inflation valve and the second inflation valve are check valves.

As a further improvement of the utility model, the upper end of the second conduit is carved with a marking line.

As a further improvement of the utility model, the closing device is the ribbon, and install at its middle part on the installation cover, the ring that forms after its head end penetrated the tail end will the installation cover with first pipe box is in the ring.

As a further improvement of the utility model, the sealing device is a rubber plug which is fixedly installed on the upper end of the installation sleeve through a binding rope.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model has simple structure, one of the catheters is separated before insertion, so that the whole outer diameter of the device is thinner, the device can be more easily inserted into the trachea of a patient, the time required for inserting the device into the trachea is shortened, and the suffocation risk of the patient is reduced; after the device is inserted into the trachea of a patient, the separated catheter is inserted into the mounting sleeve, and the device can be normally used; the sealing device is arranged, after the operation is finished, the movably arranged guide pipe can be pulled out, and then the opening at the upper end of the mounting sleeve is sealed by the sealing device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional view at a-a in fig. 1 when a second duct is not installed according to embodiment 1 of the present invention;

fig. 3 is a schematic sectional view at a-a in fig. 1 when a second guide pipe is installed according to embodiment 1 of the present invention;

fig. 4 is a cross-sectional view of embodiment 2 of the present invention without a second duct;

fig. 5 is a schematic front view of embodiment 3 of the present invention;

fig. 6 is a schematic cross-sectional view at B-B in fig. 5 when the second guide pipe is not installed according to embodiment 3 of the present invention;

fig. 7 is a schematic sectional view at B-B in fig. 1 when a second guide pipe is installed according to embodiment 3 of the present invention;

fig. 8 is a sectional view of embodiment 4 of the present invention without installing a second duct.

Fig. 9 is a schematic front view of the device of the present invention symmetrical to fig. 1;

fig. 10 is a front view schematically illustrating the structure of the device of the present invention symmetrical to fig. 5.

Wherein: 1. the device comprises a first catheter, a second catheter, a first air bag, a second air bag, a first inflation valve, a second air bag, a second inflation valve, a first air channel, a second air channel, a sub-part, a sealing device, a mounting sleeve, a first elastic film, a second elastic film, a first air bag, a second air bag, a first inflation valve, a second air channel, a sub-part, a.

Detailed Description

To make the objects, aspects and advantages of the present invention clearer and more fully described below with reference to the following detailed description, it is to be understood that the terms "center", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the drawings, and are used merely for convenience of describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1

As shown in fig. 1 to 3, a double-lumen bronchial cannula comprises a first catheter 1 and a second catheter 2, wherein an installation sleeve 3 for sleeving the second catheter 2 is arranged on the outer surface of the first catheter 1, the installation sleeve 3 is made of a flexible material, the cross sections of the first catheter 1 and the second catheter 2 are both D-shaped, and the length of the installation sleeve 3 is shorter than that of the first catheter 1; before the device is inserted into the trachea of a patient, the second catheter tube 2 is separated so as to reduce the overall outer diameter of the device; the upper end of the mounting sleeve 3 is provided with a sealing device 12 for sealing the upper end opening of the mounting sleeve 3 when needed.

As shown in fig. 1, the first catheter 1 is a bronchial catheter, the second catheter 2 is a main tracheal catheter, the first catheter 1 includes a vertical section and a bent section, a first air bag 5 is disposed at the bottom of the vertical section of the first catheter 1, the first air bag 5 is fixedly mounted on the outer surfaces of the first catheter 1 and the mounting sleeve 3, and the first air bag 5 is used for blocking the main tracheal of a patient and preventing secretion of the patient from overflowing from the main tracheal to affect smooth operation; the first air bag 5 is communicated with a first inflation valve 6, and the first inflation valve 6 is a one-way valve to prevent the air leakage of the main air pipe air bag 5; the second air bag 7 is fixedly installed at the bent section of the first catheter 1, and the second air bag 7 is used for blocking the bronchus of a patient and preventing oxygen input by a breathing machine from leaking through the gaps of the bronchus to cause oxygen deficiency of the patient; the second air bag 7 is communicated with a second inflation valve 8, and the second inflation valve 8 is a one-way valve to prevent the second air bag 7 from leaking air.

The first inflation valve 6 and the second inflation valve 8 can be detachably mounted.

The upper end of the second guide tube 2 is marked with a marking line 13 to confirm its insertion depth, and when the marking line 13 is overlapped with the top end of the mounting sleeve 3, it indicates that the second guide tube 2 is inserted to a proper depth.

As shown in fig. 2, the mounting sleeve 3 includes two arc-shaped sub-members 11 symmetrically fixed on the first conduit 1, ends of the two sub-members 11 facing away from the first conduit 1 are fixedly connected by an elastic film 4, and the first conduit 1, the two sub-members 11 and the elastic film 4 together enclose a mounting space for mounting the second conduit 2.

Fig. 2 is a view showing the structure of the mounting sleeve 3 clearly, and in practice, when the second conduit 2 is not mounted, the mounting space formed by the two sub-members 11 and the elastic film 4 is contracted, so that the overall diameter of the device is small.

The sub-piece 11 and the elastic film 4 are made of medical rubber, are soft in material, are not prone to damage vocal cords of a patient, are easy to deform, and are easier to insert into trachea of the patient.

In order to facilitate the smooth insertion of the second catheter 2 into the mounting sleeve 3, a layer of medical paint with lubricating effect may be applied to the inner surface of the mounting sleeve 3.

As shown in fig. 1-3, a first air passage 9 is provided in the side wall of the first conduit 1 for communicating with the first balloon 5, the first inflation valve 6 communicates with the first balloon 5 through the conduit and the first air passage 9, and after the device is inserted into a proper position, the first balloon 5 is inflated through the first inflation valve 6, the conduit and the first air passage 9 by using an inflation device.

The side wall of the bronchial catheter is internally provided with a second air passage 10 communicated with the second air bag 7, the second inflation valve 8 is communicated with the second air bag 7 through the catheter and the second air passage 10, and after the device is inserted into a proper position, the inflation device is used for inflating the second air bag 7 through the second inflation valve 8, the catheter and the second air passage 10.

As shown in fig. 1, the sealing device 12 is a ribbon, the middle part of which is installed on the installation sleeve 3, and the circular ring formed after the head end of the ribbon penetrates into the tail end of the installation sleeve 3 is used for sleeving the installation sleeve 3 and the first conduit 1 in the circular ring, and when the second conduit 2 is pulled out, the ribbon is tensioned, and the upper end opening of the installation sleeve 3 can be sealed.

Obviously, the sealing device 12 may also be another simple device, such as a rubber plug, which is fixedly mounted on the upper end of the mounting sleeve 3 through a binding rope; and the device can also be a rope or other devices as long as the simple sealing function can be realized.

Example 2

As shown in fig. 4, the difference from embodiment 1 is that the mounting sleeve 3 is a tubular structure and elastic, made of medical rubber, and is in a contracted state in a free state, and because an elastic film is not used, the risk of being punctured by the main endotracheal tube 2 is reduced.

Example 3

As shown in fig. 5, the difference from embodiment 1 lies in that the first catheter 1 is a main endotracheal tube, a first air bag 5 is disposed at the bottom of the first catheter 1, the first air bag 5 is fixedly mounted on the outer surfaces of the first catheter 1 and the mounting sleeve 3, the first air bag 5 is communicated with a first inflation valve 6, the second catheter 2 is a bronchial catheter, the second catheter 2 includes a vertical section and a bent section, the bent section of the second catheter 2 is fixedly mounted with a second air bag 7, and the second air bag 7 is communicated with a second inflation valve 8.

As shown in fig. 6 and 7, the first air passage 9 is provided in the side wall of the first guide duct 1, and the second air passage 10 is provided in the side wall of the second guide duct 2.

In this embodiment, the connection between the bent section and the vertical section of the second guiding tube 2 is a gentle slope, so that the second guiding tube 2 can be inserted into the mounting sleeve 3 more easily, and the second guiding tube 2 can be inserted into the bronchus more easily.

Example 4

As shown in fig. 8, the difference from embodiment 3 is that the mounting sleeve 3 is a tubular structure and elastic, made of medical rubber, and is in a contracted state in a free state, and because an elastic film is not used, the risk of being punctured by the main endotracheal tube 2 is reduced.

The 4 embodiments described above are all applicable to the left lung.

As shown in fig. 9 and 10, the structure is symmetrical to the 4 embodiments, and is suitable for the right lung.

In this device, because when inserting the second pipe 2 is independent out for the external diameter of this device is little, inserts this device into patient's trachea more easily, makes the insertion rate of this device fast, and the risk that the patient appears suffocating is low, has improved the success rate of operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A double-cavity bronchial cannula is characterized in that: the device comprises a first guide pipe (1) and a second guide pipe (2), wherein an installation sleeve (3) used for sleeving the second guide pipe (2) is arranged on the outer surface of the first guide pipe (1), the installation sleeve (3) is made of flexible materials, and a sealing device (12) is arranged at the upper end of the installation sleeve (3);

the first catheter (1) is a bronchial catheter, the second catheter (2) is a main tracheal catheter, the first catheter (1) comprises a vertical section and a bending section, a first air bag (5) is arranged at the bottom of the vertical section of the first catheter (1), the first air bag (5) is fixedly installed on the outer surfaces of the first catheter (1) and the installation sleeve (3), the first air bag (5) is communicated with a first inflation valve (6), a second air bag (7) is fixedly installed at the bending section of the first catheter (1), and the second air bag (7) is communicated with a second inflation valve (8);

or, the first catheter (1) is a main catheter, a first air bag (5) is arranged at the bottom of the first catheter (1), the first air bag (5) is fixedly installed on the outer surfaces of the first catheter (1) and the installation sleeve (3), the first air bag (5) is communicated with a first inflation valve (6), the second catheter (2) is a bronchial catheter, the second catheter (2) comprises a vertical section and a bending section, the bending section of the second catheter (2) is fixedly installed with a second air bag (7), and the second air bag (7) is communicated with a second inflation valve (8).

2. The dual lumen bronchial cannula of claim 1, wherein: the mounting sleeve (3) comprises two arc-shaped sub-pieces (11) symmetrically fixed on the first guide pipe (1), and one ends of the two sub-pieces (11) departing from the first guide pipe (1) are fixedly connected through an elastic film (4).

3. The dual lumen bronchial cannula of claim 2, wherein: the sub-piece (11) and the elastic film (4) are both medical rubber.

4. The dual lumen bronchial cannula of claim 1, wherein: the mounting sleeve (3) is made of medical rubber, is of a cylindrical structure and has elasticity, and is in a shrinkage state in a free state.

5. The dual lumen bronchial cannula of claim 1, wherein: a first air passage (9) communicated with the first air bag (5) is arranged in the side wall of the first conduit (1), and the first inflation valve (6) is communicated with the first air bag (5) through the conduit and the first air passage (9).

6. The dual lumen bronchial cannula of claim 1, wherein: a second air passage (10) communicated with the second air bag (7) is arranged in the side wall of the bronchial catheter, and the second inflation valve (8) is communicated with the second air bag (7) through the catheter and the second air passage (10).

7. The dual lumen bronchial cannula of claim 1, wherein: the first inflation valve (6) and the second inflation valve (8) are both one-way valves.

8. The dual lumen bronchial cannula of claim 1, wherein: the upper end of the second conduit (2) is marked with a mark line (13).

9. The dual lumen bronchial cannula of claim 1, wherein: the sealing device (12) is a binding belt, the middle part of the sealing device is installed on the installation sleeve (3), and the head end of the sealing device penetrates into a circular ring formed after the tail end of the sealing device penetrates through the installation sleeve (3) and the first conduit (1) to be sleeved in the circular ring.

10. The dual lumen bronchial cannula of claim 1, wherein: the sealing device (12) is a rubber plug and is fixedly installed at the upper end of the installation sleeve (3) through a binding rope.