CN219071680U - Double-layer bag tracheal catheter - Google Patents

Abstract

The utility model relates to a medical instrument technical field provides a double-deck bag endotracheal tube, including body, inflatable bag and gas tube, the one end of body is for inserting the end, and the inflatable bag surrounds and seals to set up on the surface of inserting the end, and inflatable bag and gas tube's one end intercommunication, its characterized in that, inflatable bag are bilayer structure, and the inflatable bag includes interior bag and outer bag, remains the clearance between interior bag and the outer bag, and the one end and the interior bag intercommunication of gas tube. The present application has the effect of reducing the likelihood of the balloon from leaking.

Description

Double-layer bag tracheal catheter

Technical Field

The application relates to the technical field of medical instruments, in particular to a double-layer balloon tracheal catheter.

Background

Clinically, for patients with difficult breathing, a respirator and a tracheal cannula are required to assist the patient in breathing. Specifically, the trachea cannula is connected with a breathing machine, and then the trachea cannula is inserted into the trachea of a patient. After the trachea cannula is inserted into the trachea of a patient, the air bag is inflated, so that the air bag seals a gap between the trachea cannula and the trachea wall, and therefore the trachea cannula is positioned and gas leakage is prevented during ventilation.

In the prior art, the trachea cannula mostly comprises a tube body, an inflatable bag and an inflatable tube. One end of the tube body is an insertion end, and the insertion end is placed into the trachea through the glottis; the inflatable bag is surrounded and hermetically arranged on the peripheral side of the insertion end, the inflatable bag is communicated with one end of an inflatable tube, the inflatable tube is arranged along the outer side wall of the catheter, and the other end of the inflatable tube is connected with an inflation valve.

When in use, the inflation valve is started, gas enters the inflation bag through the inflation tube, and the inflation bag is expanded and tightly attached to the inner wall of the trachea, so that the trachea cannula is axially fixed.

In the related art, since the inflatable bag has a single-layer structure, it is easily damaged by the external force, and thus the air leakage is caused, and thus the improvement is required.

Disclosure of Invention

To reduce the likelihood of leakage of the balloon, the present application provides a double-balloon endotracheal tube.

The double-layer cyst tracheal catheter provided by the application adopts the following technical scheme:

the utility model provides a double-deck bag endotracheal tube, includes body, inflatable bag and gas tube, and the one end of body is the end of inserting, and the inflatable bag surrounds and seals and set up on the surface of inserting the end, and the inflatable bag communicates with the one end of gas tube, and the inflatable bag is bilayer structure, and the inflatable bag includes interior bag and outer bag, remains the clearance between interior bag and the outer bag, and the one end and the interior bag intercommunication of gas tube.

Through adopting above-mentioned technical scheme, when inflating interior bag, outer bag can be followed interior bag and inflated together, plays the protection to interior bag under the circumstances that does not influence interior bag and normally inflate, reduces interior bag and receives the damage, and then reduces the possibility that the gas leakage takes place for the gas cell.

Preferably, the other end of the pipe body is a feeding end, two branch pipes are arranged on the feeding end, and the two branch pipes are communicated with the pipe body.

By adopting the technical scheme, the two branch pipes can be respectively used for feeding two different substances, so that the applicability is improved.

Preferably, the device further comprises a feeding pipe, the branch pipe is flexible, and the outer side wall of the feeding pipe is sleeved on the inner side wall of the branch pipe.

Through adopting above-mentioned technical scheme, the inlet pipe is used for feeding, establishes the inlet pipe cover on the branch pipe, realizes dismantling between inlet pipe and the branch pipe.

Preferably, the device further comprises a blocking block, wherein the blocking block is movably connected to the feeding pipe, the opening of one end of the feeding pipe, far away from the branch pipe, is in a round table shape, the size of the opening is gradually reduced along the direction close to the branch pipe, and the blocking block is used for blocking the opening.

Through adopting above-mentioned technical scheme, the shutoff piece can be to the opening of inlet pipe shutoff, establishes the opening into round platform form, and the shape and the opening looks adaptation of shutoff piece are convenient for the shutoff piece get into and block up the opening from great opening.

Preferably, the pipe further comprises a limiting piece, the outer side wall of the pipe body is provided with a groove, the depth of the groove is smaller than the thickness of the side wall of the pipe body, the limiting piece is arranged in the groove at intervals, and the inflation pipe is clamped in the groove.

By adopting the technical scheme, because the inflation tube is mostly adhered on the peripheral side of the tube body, the inflation tube can be always contacted with hands of a person in use, and the inflation tube falls off. The depth of the groove is smaller than the thickness of the side wall of the pipe body, and the tightness of the pipe body is not affected. When the inflation tube is required to be installed, the inflation tube can pass through the limiting piece to be clamped in the groove, the inflation tube is accommodated in the groove, the inflation tube is reduced to be protruded on the tube body, the inflation tube is prevented from being in direct contact with the outside, and the stability of the inflation tube installed on the tube body is improved.

Preferably, one end of the limiting piece is fixedly connected to one side of the groove, and the other end of the limiting piece is provided with an inclined part which is inclined downwards along the direction close to the bottom of the groove.

By adopting the technical scheme, when the air outlet pipe is installed, the air outlet pipe is convenient to clamp into the groove along the inclined part.

Preferably, the device further comprises a plurality of buffer parts, and each buffer part is positioned between the inner bag and the outer bag.

By adopting the technical scheme, when the inner bag is gradually expanded, the pressure of the inner bag can be transferred to the buffer part, and the buffer part is transferred to the outer bag.

Preferably, the cross section of the buffer part is elliptic, and the cambered surface of the buffer part is attached to the inner bag and the outer bag.

By adopting the technical scheme, the oval buffer part has wider contact surface when contacting with the inner bag and the outer bag, the contact area between the buffer part and the inner bag is increased, and the distribution of pressure is optimized.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) By arranging the inner bag and the outer bag, the outer bag protects the inner bag under the condition that the normal inflation of the inner bag is not affected, so that the inner bag is prevented from being damaged, and the possibility of air leakage of the inflatable bag is further reduced;

(2) Through the arrangement of the groove and the limiting piece, when the inflation tube is required to be installed, the inflation tube can pass through the limiting piece to be clamped in the groove, the inflation tube is contained in the groove, the inflation tube is reduced to be protruded on the tube body, the inflation tube is prevented from being in direct contact with the outside, and the stability of the inflation tube installed on the tube body is improved;

(3) Through setting up the buffer, when the inner bag was enlarged gradually, the pressure of inner bag can transmit the buffer to, and the buffer is transmitted on the outer bag again.

Drawings

FIG. 1 is a schematic view of a double-layer balloon endotracheal tube according to embodiment 1 of the present application;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1 of example 1 of the present application;

FIG. 3 is a schematic view of a double-layer balloon endotracheal tube according to embodiment 2 of the present application;

fig. 4 is a schematic structural view of a buffer portion according to embodiment 3 of the present application.

Reference numerals: 1. a tube body; 2. a branch pipe; 3. a feed pipe; 4. an opening; 5. blocking; 6. an inflatable bag; 61. an inner bag; 62. an outer bladder; 7. a groove; 8. a limiting piece; 9. an inclined portion; 10. a buffer section; 11. an inflation tube; 12. an insertion end; 13. and a feeding end.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

Example 1

Example 1 of the present application discloses a double-layered balloon tracheal catheter. Referring to fig. 1, the double-layered balloon tracheal catheter comprises a tube body 1, an inflatable balloon 6, an inflatable tube 11, a branch tube 2 and a feeding tube 3. The pipe body 1 is transparent or semitransparent, and has smooth inner and outer surfaces and no mechanical impurities or foreign matters. The tube body 1 has a feed end 13 at one end and an insertion end 12 at the other end, and the air bag 6 is enclosed and hermetically disposed on the outer surface of the insertion end 12. The inflation tube 11 is arranged on the outer wall of the tube body 1, and the inflation bag 6 is communicated with one end of the inflation tube 11.

The branch pipes 2 are arranged in two, and the two branch pipes 2 are arranged on the feeding end 13 and are communicated with the pipe body 1. The two branch pipes 2 can be used for feeding two different substances respectively, so that the applicability is improved. The branch pipe 2 has flexibility, and the outer side wall cover of inlet pipe 3 is established on the inside wall of branch pipe 2, realizes dismantling between inlet pipe 3 and the branch pipe 2.

Referring to fig. 2, a groove 7 is formed in the outer side wall of the pipe body 1, the groove 7 is formed along the length direction of the pipe body 1, the depth of the groove 7 is smaller than the thickness of the side wall of the pipe body 1, and the influence on the tightness of the pipe body 1 is reduced; the limiting pieces 8 are blocky and flexible, the limiting pieces 8 are arranged in the grooves 7 at intervals, and the inflation tube 11 is clamped in the grooves 7.

One end of the limiting piece 8 is fixedly connected to one side of the groove 7, the other end of the limiting piece is provided with an inclined portion 9, the inclined portion 9 is inclined downwards along the direction close to the bottom of the groove 7, and the inclined portion 9 can facilitate the limiting piece 8 to be clamped into the groove 7.

When the inflation tube 11 needs to be installed, the inflation tube 11 can penetrate through the limiting piece 8 to be clamped in the groove 7, the inflation tube 11 is contained in the groove 7, the inflation tube 11 is reduced to be protruded on the tube body 1, the inflation tube 11 is prevented from being in direct contact with the outside, the detachment of the inflation tube 11 is reduced, and the stability of the inflation tube 11 installed on the tube body 1 is improved.

Wherein, the inflatable bag 6 is of a double-layer structure and comprises an inner bag 61 and an outer bag 62, a gap is reserved between the inner bag 61 and the outer bag 62, and one end of the inflatable tube 11 is communicated with the inner bag 61. The inflatable bag 6 in the prior art has a single-layer structure, is thinner, and is easily damaged due to external influence after the inflatable bag 6 is inflated, thereby causing air leakage. The outer bag 62 in the double-layer inflatable bag 6 can protect the inner bag 61, and the outer bag 62 can store air even if the inner bag 61 is broken. Meanwhile, the outer bag 62 can be inflated together with the inner bag 61 without affecting the normal inflation of the inner bag 61.

The implementation principle of the double-layer cyst tracheal catheter of the embodiment 1 of the application is as follows: when in use, the insertion end 12 of the tube body 1 is inserted into the trachea of a patient, then an air inflation valve is used for supplying air into the air inflation tube 11 so as to inflate the inner bag 61, the outer bag 62 is gradually inflated along with the inner bag 61, so that the outer bag 62 seals the gap between the tube body 1 and the trachea wall, positioning of the intubation tube is realized, leakage of air is prevented, and then feeding is performed into the feeding tube 3.

Example 2

Referring to fig. 3, embodiment 2 of the present application is further provided with a block 5 on the basis of embodiment 1, and the block 5 is connected to the feed pipe 3 by a flexible rope. The opening 4 of the end of the feed pipe 3 far away from the branch pipe 2 is in a truncated cone shape, and the diameter of the opening 4 is gradually reduced along the direction close to the branch pipe 2. The shape of the blocking piece 5 is matched with the opening 4, so that the blocking piece 5 can conveniently enter from a larger caliber and block the opening 4.

The implementation principle of the double-layer cyst tracheal catheter of the embodiment 2 of the application is as follows: in the use process, the blocking block 5 can be used for blocking the opening 4 of one feeding pipe 3 according to actual needs.

Example 3

Referring to fig. 4, embodiment 3 of the present application differs from the above embodiment in that a buffer portion 10 is further provided. The cushioning portion 10 is provided between the inner bag 61 and the outer bag 62. The cross section of the buffer portion 10 is elliptical, and the cambered surface of the buffer portion 10 is attached to the outer surface of the inner bag 61 and the inner surface of the outer bag 62.

The implementation principle of the double-layer cyst tracheal catheter of the embodiment 3 of the application is as follows: when the inner bag 61 is gradually expanded, the pressure of the inner bag 61 is transmitted to the cushioning portion 10, and the cushioning portion 10 is transmitted to the outer bag 62. The oval buffer portion 10 has a wider contact surface when contacting the inner bag 61 and the outer bag 62, so that the contact area between the buffer portion 10 and the outer bag is increased, and the distribution of pressure is optimized.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. Double-deck bag endotracheal tube, including body (1), gas cell (6) and gas tube (11), the one end of body (1) is for inserting end (12), and gas cell (6) surrounds and seals and set up on the surface of inserting end (12), and gas cell (6) and the one end intercommunication of gas tube (11), its characterized in that, gas cell (6) are bilayer structure, and gas cell (6) include interior bag (61) and outer bag (62), remain the clearance between interior bag (61) and the outer bag (62), and the one end and interior bag (61) intercommunication of gas tube (11).

2. The double-layer cyst tracheal catheter according to claim 1, wherein the other end of the tube body (1) is a feeding end (13), two branch pipes (2) are arranged on the feeding end (13), and the two branch pipes (2) are communicated with the tube body (1).

3. The double-layer cyst tracheal catheter of claim 2, further comprising a feeding tube (3), wherein the branch tube (2) has flexibility, and the outer side wall of the feeding tube (3) is sleeved on the inner side wall of the branch tube (2).

4. A double-layer balloon tracheal catheter according to claim 3, further comprising a blocking block (5), wherein the blocking block (5) is movably connected to the feeding pipe (3), the opening (4) of one end of the feeding pipe (3) far away from the branch pipe (2) is in a shape of a circular table, the size of the opening (4) gradually decreases along the direction close to the branch pipe (2), and the blocking block (5) is used for blocking the opening (4).

5. The double-layer cyst tracheal catheter of claim 1, further comprising a limiting piece (8), wherein a groove (7) is formed in the outer side wall of the tube body (1), the depth of the groove (7) is smaller than the thickness of the side wall of the tube body (1), the limiting piece (8) is arranged in the groove (7) at intervals, and the inflation tube (11) is clamped in the groove (7).

6. The double-layer balloon tracheal catheter according to claim 5, wherein one end of the limiting piece (8) is fixedly connected to one side of the groove (7), the other end of the limiting piece is provided with an inclined part (9), and the inclined part (9) is inclined downwards along the direction approaching the bottom of the groove (7).

7. The double-balloon endotracheal tube according to claim 1, further comprising a plurality of cushioning portions (10), each cushioning portion (10) being located between an inner balloon (61) and an outer balloon (62).

8. The double-balloon tracheal catheter of claim 7 wherein the cross section of the buffer portion (10) is elliptical, and the cambered surface of the buffer portion (10) is attached to the inner balloon (61) and the outer balloon (62).

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