CN219354948U - Inflation-free laryngeal mask - Google Patents
Inflation-free laryngeal mask Download PDFInfo
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- CN219354948U CN219354948U CN202222849157.4U CN202222849157U CN219354948U CN 219354948 U CN219354948 U CN 219354948U CN 202222849157 U CN202222849157 U CN 202222849157U CN 219354948 U CN219354948 U CN 219354948U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The utility model discloses an inflation-free laryngeal mask which comprises a cannula formed by injection molding of hard materials, wherein the cannula is arc-shaped; a joint injection molded from a soft material, the joint being integrally secured to the rear end of the cannula; an inflation-free cover bag formed by injection molding of soft materials, wherein the inflation-free cover bag is integrally fixed at the front end of the cannula; the inflation-free cover bag, the cannula and the joint are communicated in sequence. The cannula itself has certain intensity, and it need not to set up the metal wire, and its simple structure, the preparation is simple and easy and with low costs to can make the angle of cannula and the adaptation of human throat angle. The inflation-free cover bag is formed by injection molding of soft materials, inflation is not needed, the inflation-free cover bag is extremely convenient to use, and when the inflation-free cover bag is matched with the insertion pipe to be inserted into the throat part of a human body, the inflation-free cover bag can be ensured to be attached to the throat of the human body, the occurrence rate of air leakage can be reduced to a certain extent, and the inflation of the inflation-free cover bag cannot be realized, so that various adverse problems caused by inflation of the inflation-free cover bag can be avoided.
Description
Technical field:
the utility model relates to the technical field of medical appliances, in particular to an inflation-free laryngeal mask which has a simple structure, does not need to be inflated to improve the use convenience and can be attached to the throat of a human body.
The background technology is as follows:
laryngeal mask ventilation is a novel supraglottic airway management device, and when a patient cannot breathe spontaneously in emergency and anesthesia, an artificial airway needs to be quickly established for ventilation of the patient, so that a laryngeal mask for quickly establishing the artificial airway is invented by an anesthesiologist Brain in the uk in 1983.
The laryngeal mask cannula is known as a laryngeal mask because the front end of the cannula is joined with an oblong sleeve made of silicone rubber or other soft material that is sized to cover the larynx. It is necessary to quickly establish a clear respiratory pathway during clinical anesthesia, emergency or resuscitation.
The existing laryngeal masks are mostly inflatable laryngeal masks at present, and the inflatable laryngeal masks mainly comprise an inflatable bag body made of soft materials, an insertion tube, an inflatable tube, a connector and an inflatable valve. The intubation tube is generally made of soft rubber, in order to adapt the angle of the intubation tube to the angle of the throat when the intubation tube is inserted into the throat part, a metal guide wire is generally arranged in the soft rubber to realize shaping, so that the intubation tube has radian, but the intubation tube is required to be made of the metal guide wire, so that the structure of the intubation tube becomes complex, the cost is high, in addition, even if the intubation tube is used for realizing shaping, the intubation tube also has the risk of deformation, so that the inflatable bag body cannot be attached to the throat better; in addition, the laryngeal mask adopting the inflatable bag body has a certain air leakage phenomenon in clinical use, the air leakage occurrence rate is about 8% -20%, at present, if the laryngeal mask is found to have the air leakage phenomenon in the positive pressure ventilation process, some anesthesiologists can continuously inflate the inflatable bag body of the laryngeal mask through the inflatable tube, so that the pressure in the laryngeal mask is too high, serious compression damage can be caused to oropharyngeal tissues due to the high pressure, the laryngeal mask is easy to generate flatulence and air leakage, the air leakage occurrence rate is high, the pressure in the laryngeal mask is continuously increased, the sealing effect is not increased, the air leakage rate is increased, various complications can be caused, and the inflatable bag body is larger and stiffer, the adaptability to various shapes of the pharyngeal part is poorer, and the laryngeal mask is likely to be air leakage due to displacement.
In view of this, the present inventors have proposed the following means.
The utility model comprises the following steps:
the utility model aims to overcome the defects of the prior art and provides an inflation-free laryngeal mask.
In order to solve the technical problems, the utility model adopts the following technical scheme: the inflation-free laryngeal mask comprises a cannula which is formed by injection molding of hard materials, and the cannula is arc-shaped; a joint injection molded from a soft material, the joint being integrally secured to the rear end of the cannula; an inflation-free cover bag formed by injection molding of soft materials, wherein the inflation-free cover bag is integrally fixed at the front end of the cannula; the inflation-free cover bag, the cannula and the joint are communicated in sequence.
Furthermore, in the above technical solution, the inflation-free cover bag is integrally fixed at the front end of the cannula by the TPE material through a two-shot molding method.
Furthermore, in the above technical solution, the front end of the insertion tube has an annular anti-drop groove; the anti-drop flange formed at the periphery of the lower end of the inflation-free cover bag is integrally fixed in the annular anti-drop groove.
In the above technical scheme, further, a ring groove is formed at the periphery of the opening at the front end of the vent hole of the cannula, and the convex edge formed at the periphery of the opening at the lower end of the inflation-free cover bag is integrally fixed in the ring groove.
Furthermore, in the above technical solution, the cannula has a vent hole penetrating through the front and rear ends and a sputum suction hole, and the sputum suction hole is isolated from the vent hole.
Furthermore, in the above technical scheme, the front end of the cannula is provided with a butt joint part protruding outwards at the port of the sputum suction hole, the lower end of the inflation-free cover bag is provided with a limit groove which is in butt joint with the butt joint part, the limit groove is sheathed at the periphery of the butt joint part, the inflation-free cover bag is also provided with a notch matched with the port of the sputum suction hole, and the notch is communicated with the limit groove.
Furthermore, in the above technical solution, the connector is integrally fixed to the rear end of the cannula by a manner of two-shot molding with TPE material.
Furthermore, in the above technical solution, the joint includes a blocking plate, an arc embedded pipe integrally formed at the front end of the joint, a connecting pipe integrally formed at the rear end of the joint, and a butt joint pipe integrally formed at the front end of the joint and located beside the arc embedded pipe, where the blocking plate has a pipe orifice penetrating through the butt joint pipe, and the connecting pipe is embedded in a butt joint groove provided at the rear end of a sputum suction hole in a cannula, integrally fixed, and communicated with the sputum suction hole; the arc embedded pipe is embedded and fixed at the rear end of the vent hole of the cannula and integrally fixed, and the blocking plate abuts against the rear end of the cannula.
Furthermore, in the above technical solution, the cannula is integrally injection molded from a hard PC material.
By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
1. the intubate is by hard material injection moulding, and this intubate is the arc to this intubate self has certain intensity, can design by oneself, makes the intubate be the arc, and this intubate need not to set up the metal wire in order to realize the design promptly, its simple structure, and the preparation is simple and easy and with low costs, and when can making intubate insert human throat position, make the angle of intubate and throat angle adaptation, guarantee the laminating nature.
2. The inflation-free cover bag is formed by injection molding of soft materials, is integrally fixed at the front end of the insertion tube, has extremely stable assembly structure, is not required to be inflated, is extremely convenient to use, can be ensured to be attached to the throat of a human body when being matched with the insertion tube to be inserted into the throat of the human body, can reduce the occurrence rate of air leakage to a certain extent, and can avoid various adverse problems caused by inflation of the inflation-free cover bag due to incapability of inflating the inflation-free cover bag.
Description of the drawings:
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of another view of the present utility model;
FIG. 3 is an exploded perspective view of the present utility model;
FIG. 4 is a cross-sectional view of the present utility model;
FIG. 5 is a perspective view of a cannula according to the present utility model;
fig. 6 is a perspective view of an inflation-free bladder in accordance with the present utility model.
The specific embodiment is as follows:
the utility model will be further described with reference to specific examples and figures.
1-6, an inflation-free laryngeal mask comprises an inflation-free mask bag 3, a cannula 1 and a connector 2 which are sequentially connected, wherein the inflation-free mask bag 3, the cannula 1 and the connector 2 are sequentially communicated.
The intubation tube 1 is formed by injection molding of hard materials, the intubation tube 1 is arc-shaped, so that the intubation tube 1 has certain strength and can be shaped automatically, the intubation tube 1 is arc-shaped, namely, the intubation tube 1 does not need to be provided with a metal guide wire to realize shaping, the structure is simple, the manufacturing is simple and easy, the cost is low, and the angle and the throat angle of the intubation tube 1 can be adapted when the intubation tube 1 is inserted into the throat part of a human body, so that the fit is ensured. The joint 2 is formed by injection molding of soft materials, and the joint 2 is integrally fixed at the rear end of the cannula 1 and is connected with other structures/parts; the inflation-free cover bag 3 is formed by injection molding of soft materials, the inflation-free cover bag 3 is integrally fixed at the front end of the insertion tube 1, the assembly structure is extremely stable, the inflation-free cover bag 3 is not required to be inflated, the use is extremely convenient, in addition, when the inflation-free cover bag 3 is matched with the insertion tube 1 to be inserted into the throat part of a human body, the inflation-free cover bag 3 can be ensured to be attached to the throat of the human body, the occurrence rate of air leakage can be reduced to a certain extent, the inflation-free cover bag 3 cannot be inflated, so that serious compression damage to oropharyngeal tissues can be avoided due to the fact that the inflation-free cover bag 3 is inflated, the pressure in the laryngeal mask is too high, the inflation-free cover is easy to generate air leakage due to the fact that the pressure is too high, the occurrence rate of gastric inflation is high, the inflation-free cover is continuously increased, the sealing effect is not increased, various complications can be caused, the inflation-free cover bag body is inflated to be more rigid, the adaptability to various shapes of the throat part is poor, the inflation-free cover bag is more likely to generate displacement, the inflation-free cover can be inflated, the inflation-free cover has the problem of the inflation-free effect can be more greatly caused by the inflation-free cover bag has the inflation effect, and can be inflated by the inflation-free market.
The inflation-free cover bag 3 is integrally fixed at the front end of the cannula 1 through a two-time injection molding mode by using TPE materials, the assembly structure is extremely stable, and the inflation-free cover bag 3 is ideal in softness and elasticity.
The front end of the insertion tube 1 is provided with an annular anti-falling groove 11; the anti-falling flange 31 formed at the periphery of the lower end of the inflation-free cover bag 3 is integrally fixed in the annular anti-falling groove 11, so that the stability of an assembly structure can be further enhanced, and the inflation-free cover bag 3 can be effectively prevented from falling off relative to the insertion tube 1. In addition, the periphery of the front end opening of the vent hole 12 of the cannula 1 is provided with a ring groove 13, and the peripheral molding convex edge 32 of the lower end opening of the inflation-free cover bag 3 is integrally fixed in the ring groove 13, so that the stability of the assembly structure can be further enhanced, and the inflation-free cover bag 3 is more effectively prevented from being separated from the cannula 1.
The cannula 1 has a vent hole 12 penetrating through the front and rear ends and a sputum suction hole 14, and the sputum suction hole 14 is isolated from the vent hole 12.
The front end of the insertion tube 1 is provided with a butt joint part 15 protruding outwards at the port of the sputum suction hole 14, the lower end of the inflation-free cover bag 3 is provided with a limit groove 33 which is in butt joint with the butt joint part 15, the limit groove 33 is sheathed on the periphery of the butt joint part 15, the inflation-free cover bag 3 is also provided with a notch 34 which is matched with the port of the sputum suction hole 14, and the notch 34 is communicated with the limit groove 33, so that the stability of an assembly structure is ensured.
The joint 2 is integrally fixed at the rear end of the cannula 1 by a TPE material through a secondary injection molding mode, and has a simple structure and firmness.
The joint 2 comprises a blocking plate 21, an arc embedded pipe 22 integrally formed at the front end of the joint 2, a connecting pipe 23 integrally formed at the rear end of the joint 2, and a butt joint pipe 24 integrally formed at the front end of the joint 2 and positioned beside the arc embedded pipe 22, wherein the blocking plate 21 is provided with a pipe orifice 211 penetrating through the butt joint pipe 24, and the connecting pipe 23 is embedded into a butt joint groove 141 arranged at the rear end of the sputum suction hole 14 in the cannula 1, integrally fixed and communicated with the sputum suction hole 14; the arc embedded pipe 22 is embedded and fixed at the rear end of the vent hole 12 of the cannula 1 and integrally fixed, and the blocking plate 21 abuts against the rear end of the cannula 1, so that the assembly structure is extremely stable.
The cannula 1 is integrally injection molded from a rigid PC material.
To sum up, the insertion tube 1 is formed by injection molding of hard materials, and the insertion tube 1 is arc-shaped, so that the insertion tube 1 has certain strength and can be shaped by itself, and the insertion tube 1 is arc-shaped, namely, the insertion tube 1 does not need to be provided with a metal guide wire to realize shaping, has simple structure, is easy to manufacture and low in cost, and can ensure the fitting performance of the insertion tube 1 when being inserted into the throat part of a human body, so that the angle of the insertion tube is adapted to the throat angle. The inflation-free cover bag 3 is formed by injection molding of soft materials, the inflation-free cover bag 3 is integrally fixed at the front end of the insertion tube 1, the assembly structure is extremely stable, the inflation-free cover bag 3 is not required to be inflated, the use is extremely convenient, in addition, when the inflation-free cover bag 3 is matched with the insertion tube 1 to be inserted into the throat part of a human body, the inflation-free cover bag 3 can be ensured to be attached to the throat of the human body, the occurrence rate of air leakage can be reduced to a certain extent, and the inflation of the inflation-free cover bag 3 can not be carried out, so that various bad problems caused by the inflation of the inflation-free cover bag 3 can be avoided, the inflation-free laryngeal mask disclosed by the utility model is more reliable to use, and has extremely strong market competitiveness.
It is understood that the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.
Claims (6)
1. An inflation-free laryngeal mask, characterized in that: it comprises the following steps:
a cannula (1) injection molded from a hard material, the cannula (1) being arc-shaped;
a joint (2) formed by injection molding of soft materials, wherein the joint (2) is integrally fixed at the rear end of the cannula (1);
an inflation-free cover bag (3) which is formed by injection molding of soft materials, wherein the inflation-free cover bag (3) is integrally fixed at the front end of the cannula (1);
the inflation-free cover bag (3), the insertion tube (1) and the joint (2) are sequentially communicated;
the inflation-free cover bag (3) is integrally fixed at the front end of the cannula (1) through a two-time injection molding mode by a TPE material;
the front end of the insertion tube (1) is provided with an annular anti-drop groove (11); an anti-drop flange (31) formed at the periphery of the lower end of the inflation-free cover bag (3) is integrally fixed in the annular anti-drop groove (11);
the periphery of the front end opening of the vent hole (12) of the cannula (1) is provided with a ring groove (13), and the periphery-formed convex edge (32) of the lower end opening of the inflation-free cover bag (3) is integrally fixed in the ring groove (13).
2. An inflation-free laryngeal mask according to claim 1, wherein: the cannula (1) is provided with vent holes (12) penetrating through the front end and the rear end, and a sputum suction hole (14), wherein the sputum suction hole (14) is isolated from the vent holes (12).
3. An inflation-free laryngeal mask according to claim 2, wherein: the front end of the cannula (1) is provided with a butt joint part (15) protruding outwards at the port of the sputum suction hole (14), the lower end of the inflation-free cover bag (3) is provided with a limit groove (33) which is in butt joint with the butt joint part (15), the limit groove (33) is sheathed on the periphery of the butt joint part (15), the inflation-free cover bag (3) is also provided with a notch (34) which is matched with the port of the sputum suction hole (14), and the notch (34) is communicated with the limit groove (33).
4. An inflation-free laryngeal mask according to claim 2, wherein: the joint (2) is integrally fixed at the rear end of the cannula (1) through a two-shot injection molding mode by a TPE material.
5. An inflation-free laryngeal mask according to claim 4, wherein: the joint (2) comprises a blocking plate (21), an arc embedded pipe (22) integrally formed at the front end of the joint (2), a connecting pipe (23) integrally formed at the rear end of the joint (2) and a butt joint pipe (24) integrally formed at the front end of the joint (2) and positioned beside the arc embedded pipe (22), the blocking plate (21) is provided with a pipe orifice (211) penetrating through the butt joint pipe (24), and the connecting pipe (23) is embedded into a butt joint groove (141) arranged at the rear end of a sputum suction hole (14) in the cannula (1) and integrally fixed and communicated with the sputum suction hole (14); the arc embedded pipe (22) is embedded and fixed at the rear end of the vent hole (12) of the insertion pipe (1) and is integrally fixed, and the blocking plate (21) abuts against the rear end of the insertion pipe (1).
6. An inflation-free laryngeal mask according to claim 4, wherein: the cannula (1) is integrally injection molded from a hard PC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222849157.4U CN219354948U (en) | 2022-10-26 | 2022-10-26 | Inflation-free laryngeal mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222849157.4U CN219354948U (en) | 2022-10-26 | 2022-10-26 | Inflation-free laryngeal mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219354948U true CN219354948U (en) | 2023-07-18 |
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ID=87145951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222849157.4U Active CN219354948U (en) | 2022-10-26 | 2022-10-26 | Inflation-free laryngeal mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219354948U (en) |
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2022
- 2022-10-26 CN CN202222849157.4U patent/CN219354948U/en active Active
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