CN217472518U - Medical laryngeal mask - Google Patents
Medical laryngeal mask Download PDFInfo
- Publication number
- CN217472518U CN217472518U CN202120385816.6U CN202120385816U CN217472518U CN 217472518 U CN217472518 U CN 217472518U CN 202120385816 U CN202120385816 U CN 202120385816U CN 217472518 U CN217472518 U CN 217472518U
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- China
- Prior art keywords
- laryngeal mask
- connecting piece
- mask
- medical
- cover bag
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- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims abstract description 6
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 208000035965 Postoperative Complications Diseases 0.000 abstract description 7
- 230000009545 invasion Effects 0.000 abstract description 3
- 206010058046 Post procedural complication Diseases 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 12
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 210000003800 pharynx Anatomy 0.000 description 7
- 239000003292 glue Substances 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 210000002409 epiglottis Anatomy 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 235000013842 nitrous oxide Nutrition 0.000 description 2
- 239000001272 nitrous oxide Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 231100000899 acute systemic toxicity Toxicity 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003994 anesthetic gas Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 208000037906 ischaemic injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 210000003300 oropharynx Anatomy 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/04—Tracheal tubes
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model belongs to the technical field of medical instrument, concretely relates to medical laryngeal mask. The surface of the medical laryngeal mask is provided with a transparent insulating lubricating coating for resisting the invasion of a corrosive gas piece; the medical laryngeal mask comprises a mask sac, a connecting piece and a main airway tube; the connecting piece is arranged in the cover bag, the front end of the main air duct pipe penetrates into the cover bag to be communicated with the connecting piece, and the rear end of the cover bag is connected with the outer surface of the main air duct pipe; the cover bag, the connecting piece and the main air duct conduit are integrated through injection molding. The utility model has the characteristics of can reduce patient postoperative complication and take place, practice thrift cost and extensive applicability.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to medical laryngeal mask.
Background
The laryngeal mask is applied to general anesthesia operation and used for establishing a safe airway.
The laryngeal mask is made of high polymer materials such as PVC (polyvinyl chloride) or silica gel, and specific gas molecules can penetrate through the materials under certain special conditions, such as nitrous oxide (N) 2 O) can penetrate the silicone material, causing an increase in the pressure within the laryngeal mask capsule.
In the production process of the inflatable laryngeal mask, parts such as the mask sac, the connecting piece, the main pipe and the like need to be produced independently, the mask sac and the connecting piece are bonded together by glue, then the main pipe, the mask sac and the connecting piece are bonded together by the glue, and the glue is beaten at the same position for many times in the bonding process. The laryngeal mask is composed of a plurality of components, the production process is numerous in working procedures, the bonding process is complex, and the control key points are more.
However, the existing laryngeal mask has the following problems:
1. laryngeal mask inflation and intracapsular pressure control are among the major concerns of clinical anesthetists. When nitrous oxide N 2 When O (laughing gas) is used as anesthetic gas, the O (laughing gas) rapidly and dispersedly enters the laryngeal mask sac to cause the rapid rise of the pressure in the sac in a short time, which greatly exceeds the perfusion and pressure of capillary vessels of mucous membranes of the laryngeal part, possibly causes ischemic injury of the mucous membranes of the oropharynx, and leads to the rise of the incidence rate of postoperative complications of the laryngeal part of the pharynx.
2. The existing inflatable laryngeal mask mainly comprises a mask sac, a connecting piece, a main pipe, an inflation system (if any), a corresponding breathing pipeline connecting joint and the like. The parts such as the cover bag, the connecting piece, the main pipe and the like need to be processed separately and then are combined together in a bonding mode. The laryngeal mask has a plurality of processing steps and more control points and key points of a processing technology, and if the appearance of a bonding surface needs to be checked and the bonding strength needs to be tested for many times in the bonding process, the production control factors and the production cost are increased.
3. The prior inflation-free laryngeal mask mainly comprises a mask sac, a connecting piece, a main pipe, a breathing pipeline connecting joint and the like. The laryngeal mask of the type can not be inflated in the using process, and the adaptability of the inflation-free laryngeal mask is poor due to the structural difference of human body throats (the sizes of throats are different). The laryngeal masks with different sizes are required to be tried out continuously, and the laryngeal mask can be inserted into the human body to seal the laryngeal airway, so that a clinical user needs to have higher operation requirements and clinical experience.
Therefore, it is necessary to design a medical laryngeal mask which can reduce postoperative complications of patients, save cost and have wide applicability.
For example, chinese utility model patent application number is CN201420604718.7 an exempt from inflatable laryngeal mask with imbibition function, including joint, flexible glue cover bag, form between flexible glue cover bag and the cover body and aerify the chamber, be equipped with a plurality of attraction holes on the cover body, be provided with the passageway of ventilating in the breather pipe, feed and eat drainage channel and attraction passageway, the passageway of ventilating and aerify the chamber intercommunication, feed and eat drainage channel and run through the breather pipe and the cover body and with set up the jogged joint of eating of feeding at cover body front end, attract hole and attraction passageway intercommunication, be provided with the inflation inlet on the joint, feed and eat mouth and attraction port, inflation inlet and the passageway intercommunication of ventilating, feed and eat drainage channel intercommunication, attraction port and attraction channel intercommunication. Although simple structure, reasonable in design, the leakproofness is good, mucus, the blood clot of the throat of accessible time discharging, the air vent is difficult for blockking up, and is little to patient's damage, but the weak point lies in that overall structure is formed through a plurality of part equipment, leads to the processing step numerous, and processing technology control main points and key are more, have improved the cost of production, and the suitability is single, need through the not equidimension laryngeal mask on continuous probation, just can reach and insert human back airtight throat air flue.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art, current medical laryngeal mask exists manufacturing cost height, and the suitability is poor and make the problem that patient postoperative produced complication easily, provides one kind and can reduceing patient postoperative complication and take place, practices thrift cost and extensive applicability general medical laryngeal mask.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
the surface of the medical laryngeal mask is provided with a transparent insulating lubricating coating for resisting the invasion of a corrosive gas piece; the medical laryngeal mask comprises a mask sac, a connecting piece and a main airway catheter; the connecting piece is arranged in the cover bag, the front end of the main air duct pipe penetrates into the cover bag to be communicated with the connecting piece, and the rear end of the cover bag is connected with the outer surface of the main air duct pipe; the cover bag, the connecting piece and the main air duct conduit are integrated through injection molding.
Preferably, the material adopted by the transparent insulating lubricating coating comprises parylene.
Preferably, the main airway tube has an arc of curvature of 145 ° to 175 °.
Preferably, the mask sac is provided with an anti-slip corrugated structure for preventing the laryngeal mask from rolling back.
Preferably, the main airway tube is made of silica gel or PVC material with the hardness of 55-80 degrees.
Preferably, the connecting piece is provided with a shielding piece, and the shielding piece is provided with an opening for ventilation.
Preferably, the medical laryngeal mask surface comprises an edge, a slit and an inner surface.
Compared with the prior art, the utility model, beneficial effect is: (1) the utility model adds a special blocking coating on the surface of the laryngeal mask to isolate the gas from penetrating the mask sac, so that the pressure in the laryngeal mask sac is increased, and the occurrence of postoperative complications of patients is reduced; (2) the middle cover bag, the connecting piece and the main air duct pipe of the utility model are integrated by injection molding, and the whole structure can be completed by subsequent bonding, thereby saving the production cost of the laryngeal mask, improving the production efficiency and avoiding the occurrence of air leakage at the bonding part; (3) the utility model discloses extensive applicability is general, can laminate completely at patient's throat, has overcome the poor problem of laryngeal mask clinical use suitability of exempting from to aerify.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a bottom view of the present invention.
In the figure: the mask comprises a mask bag 1, a connecting piece 2, a main airway conduit 3, an anti-skid corrugated structure 4, a shielding sheet 5, an opening 6 and an airway outlet 7.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
Example 1:
the medical laryngeal mask shown in figures 1 and 2 is provided with a transparent insulating lubricating coating on the surface for resisting the invasion of corrosive gas; the medical laryngeal mask comprises a mask sac 1, a connecting piece 2 and a main airway tube 3; the connecting piece is arranged in the cover bag, the front end of the main air duct pipe penetrates into the cover bag to be communicated with the connecting piece, and the rear end of the cover bag is connected with the outer surface of the main air duct pipe; the cover bag, the connecting piece and the main air duct conduit are integrated through injection molding.
Wherein, the transparent insulating lubricating coating is a special blocking coating and is used for isolating gas from penetrating the mask sac, so that the pressure in the laryngeal mask sac is increased, and the occurrence of postoperative complications of a patient is reduced. The mask bag, the connecting piece and the main air duct are formed by processing and forming three parts respectively and bonding the three parts together to form three parts which are combined together in one step, and the whole structure can be completed by bonding the three parts together subsequently, so that the production cost of the laryngeal mask is saved, the production efficiency is improved, and the occurrence of air leakage at the bonded part is avoided.
Further, the transparent insulating lubricating coating is made of a material comprising parylene.
Parylene materials have the following advantages:
the water-based paint has good hydrophobicity (self-lubricating property), is not adhered to body fluid of a human body clinically, and reduces infection caused by phenomena of splashing, spraying and the like caused by the adhesion of the body fluid;
meets the requirements of ISO-10993 biological tests, and comprises cytotoxicity, sensitization, intradermal irritation, acute systemic toxicity, implantation and blood solubility tests.
The parylene can be coated on the surfaces of various shapes, and can play a good role in isolation and protection in severe environments such as salt fog, mould, humidity, corrosiveness and the like.
Additionally, parylene materials can withstand routine sterilization.
The protective polymer material parylene is selected, active molecules of parylene are completely attached to the surface of the laryngeal mask through a unique vacuum vapor deposition process mode, a transparent insulating lubricating coating which is free of pinholes and uniform in thickness is formed, a complete high-quality protective coating is provided for the laryngeal mask, and the attack of acid, alkali, salt mist, mold and various corrosive gas pieces is resisted. Meanwhile, the parylene is not liquid, so that aggregation cannot occur in the coating process; and the parylene coating does not belong to a conventional solvent-based coating, no solvent is evaporated after the coating is used, and no pinhole is formed on the surface of the laryngeal mask to form a leakage point.
Wherein the laryngeal mask surface comprises an edge, a slit, and an inner surface.
The coating of the parylene coating adopts a vapor deposition principle, dimer of the parylene is heated in a vacuum state and then is converted from a solid state to a gaseous state, and is converted from the gaseous state to the solid state on the surface of a workpiece for deposition, the whole process is completed in a closed space, and an independent liquid process in the middle is avoided, so that the damage to operators and the environment is avoided.
Further, the curvature of the main airway tube is 145 ° to 175 °. The main airway duct adopts a large radian design, so that the inner channel of the main airway duct is flatter and straighter than the existing laryngeal mask, and the bronchofiberscope can smoothly pass through the duct and cannot be blocked in the middle.
Further, as shown in fig. 3, the mask sac is provided with an anti-slip corrugated structure 4 for preventing the laryngeal mask from backing up. The anti-slip corrugated structure can increase the resistance of backward movement, prevent the laryngeal mask from being extruded outwards to cause displacement, reduce the damage and reduce the stress when contacting with the front surface of the mucosa.
Furthermore, the main air duct is made of silica gel or PVC material with the hardness of 55-80 degrees. The main airway tube is more flexible with lower durometer materials.
Further, as shown in fig. 3, a shielding sheet 5 is arranged on the connecting member, and an opening 6 for ventilation is arranged on the shielding sheet. The design can shield the epiglottis outside the stomata of the connector in order to prevent the epiglottis cartilage from shielding the stomata in the connector. When the epiglottis slides down from the shielding piece to block the airway, the opening hole on the shielding piece can play a role in ventilation.
In addition, the front end of the mask sac is provided with a trachea outlet 7 which is an oblique arrangement structure, so that the thickness of the front end of the mask sac can be reduced, the resistance for placing the laryngeal mask is reduced, the laryngeal mask is prevented from being turned over when placed, and the cricoarytenoid joint cannot be excessively pressed.
The utility model adds a special blocking coating on the surface of the laryngeal mask to isolate the gas from penetrating the mask sac, so that the pressure in the laryngeal mask sac is increased, and the occurrence of postoperative complications of patients is reduced; the middle cover bag, the connecting piece and the main air duct pipe of the utility model are integrated by injection molding, and the whole structure can be completed by subsequent bonding, thereby saving the production cost of the laryngeal cover, improving the production efficiency and avoiding the occurrence of air leakage at the bonding part; the utility model discloses extensive applicability is general, can laminate completely at patient's throat, has overcome the poor problem of laryngeal mask clinical use suitability of exempting from to aerify.
The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.
Claims (7)
1. The medical laryngeal mask is characterized in that a transparent insulating lubricating coating for isolating gas from penetrating through the mask sac is arranged on the surface of the medical laryngeal mask; the medical laryngeal mask comprises a mask sac, a connecting piece and a main airway tube; the connecting piece is arranged in the cover bag, the front end of the main air duct pipe penetrates into the cover bag to be communicated with the connecting piece, and the rear end of the cover bag is connected with the outer surface of the main air duct pipe; the cover bag, the connecting piece and the main air duct conduit are integrated through injection molding.
2. The medical laryngeal mask of claim 1, wherein the transparent insulating and lubricating coating is made of parylene.
3. The medical laryngeal mask of claim 1, wherein the main airway tube has an arc of curvature of 145 ° to 175 °.
4. The medical laryngeal mask of claim 1, wherein the mask cuff is provided with an anti-slip corrugation for preventing the laryngeal mask from rolling back.
5. The medical laryngeal mask of claim 1, wherein the main airway tube is made of a silicone or PVC material with a durometer of 55 ° to 80 °.
6. The medical laryngeal mask according to any one of claims 1 to 5, wherein a shielding plate is arranged on the connecting piece, and an opening for ventilation is arranged on the shielding plate.
7. The medical laryngeal mask of any one of claims 1-5, wherein the medical laryngeal mask surface comprises an edge, a slit and an inner surface.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385816.6U CN217472518U (en) | 2021-02-20 | 2021-02-20 | Medical laryngeal mask |
| PCT/CN2021/105707 WO2022174549A1 (en) | 2021-02-20 | 2021-07-12 | Medical laryngeal mask |
| AU2021107544A AU2021107544A4 (en) | 2021-02-20 | 2021-07-12 | Medical laryngeal mask airway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385816.6U CN217472518U (en) | 2021-02-20 | 2021-02-20 | Medical laryngeal mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217472518U true CN217472518U (en) | 2022-09-23 |
Family
ID=78176959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120385816.6U Active CN217472518U (en) | 2021-02-20 | 2021-02-20 | Medical laryngeal mask |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN217472518U (en) |
| AU (1) | AU2021107544A4 (en) |
| WO (1) | WO2022174549A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2456747A (en) * | 2007-10-12 | 2009-07-29 | Laryngeal Mask Co Ltd | Laryngeal mask airway device with a parylene coating |
| GB201013160D0 (en) * | 2010-08-05 | 2010-09-22 | Laryngeal Mask Company The Ltd | A laryngeal mask airway device |
| CN107137807B (en) * | 2017-05-02 | 2020-06-09 | 浙江简成医疗科技有限公司 | Laryngeal mask |
| CN208959033U (en) * | 2018-06-05 | 2019-06-11 | 宁波贝格医疗器械有限公司 | A kind of Medical throat cover |
| CN210020729U (en) * | 2019-05-09 | 2020-02-07 | 浙江曙光科技有限公司 | Laryngeal mask capable of preventing capsule from opening |
-
2021
- 2021-02-20 CN CN202120385816.6U patent/CN217472518U/en active Active
- 2021-07-12 AU AU2021107544A patent/AU2021107544A4/en active Active
- 2021-07-12 WO PCT/CN2021/105707 patent/WO2022174549A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| AU2021107544A4 (en) | 2021-10-21 |
| WO2022174549A1 (en) | 2022-08-25 |
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