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CN101422636A - Laryngeal mask airway device including parylene - Google Patents

Laryngeal mask airway device including parylene Download PDF

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Publication number
CN101422636A
CN101422636A CNA2008101778895A CN200810177889A CN101422636A CN 101422636 A CN101422636 A CN 101422636A CN A2008101778895 A CNA2008101778895 A CN A2008101778895A CN 200810177889 A CN200810177889 A CN 200810177889A CN 101422636 A CN101422636 A CN 101422636A
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CN
China
Prior art keywords
laryngeal mask
airway device
mask airway
parylene
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008101778895A
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Chinese (zh)
Inventor
罗纳德·克雷格·怀特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laryngeal Mask Co Ltd
Original Assignee
Laryngeal Mask Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Laryngeal Mask Co Ltd filed Critical Laryngeal Mask Co Ltd
Publication of CN101422636A publication Critical patent/CN101422636A/en
Pending legal-status Critical Current

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    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/10—Macromolecular materials
    • 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
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/60—Deposition of organic layers from vapour phase
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • C08J7/065—Low-molecular-weight organic substances, e.g. absorption of additives in the surface of the article
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D165/00—Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D165/04—Polyxylylenes
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0222—Materials for reducing friction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0493—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases using vacuum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2465/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2465/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
    • C08J2465/04—Polyxylylenes

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pulmonology (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Anesthesiology (AREA)
  • Materials Engineering (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Surgery (AREA)
  • Wood Science & Technology (AREA)
  • Prostheses (AREA)

Abstract

The present invention relates to a laryngeal mask airway device which facilitates the pulmonary ventilation in unconscious patient. The laryngeal mask device comprises a curved or flexible tube which enters the inner part of hollow cover part and has one opened end. The cover part comprises a back plate and a cover vesicle. The cover part is formed accorded with and easily suitable for the actual and latent space after the larynx. The circumference surrounding the inlet of larynx is sealed without penetration into the inner part of larynx. The invention is characterized in that the surface of device at least partially comprises poly-p-xylene which provides a low friction surface for the improved insertion of artificial respiratory tract device.

Description

The laryngeal mask airway device that comprises Parylene
Technical field
The present invention relates to a kind of laryngeal mask airway device that comprises Parylene.
Background technology
Laryngeal mask airway device is well-known, and is used for setting up respiratory tract or monitoring anesthesia is useful unconscious patient.For example, the welcome laryngeal mask airway device sold of Laryngeal Mask Company Ltd. in commercial conduct " classics ".This device is for example in U.S. Patent No. 4,509, describes in 514, and generally includes the cover part and breathe deferent, breathes deferent and set up respiratory tract when being in complete insert structure in the patient.For the purpose of simplifying the description, term " fully insert structure " will be used in reference to the laryngeal mask airway equipment that has inserted among the patient and had following feature at this: the far-end of (1) cover part applies pressure to patient's normally closed sphincter of gullet; (2) the cover capsule forms sealing around patient's glottis opening; And (3) breathe deferent from the proximal extension in the outside of the mouth that is positioned at the patient to the far-end that is connected to the cover part, this pipe extends through patient's mouth and patient's normal upper respiratory tract, makes this device that the respiratory tract from the proximal extension of this pipe to the sealing of patient's lung is provided.
The frictional force that produces owing to the general breathing road against the patient, to set up synthetical respiratory tract in the patient be difficult by inserting synthetical airway device.Be used to guide the place of the insertion of endotracheal tube, friction to be created between the outside of the inside of pipe of laryngeal mask airway device and endotracheal tube at laryngeal mask airway.In medical condition, set up apace and easily and the respiratory tract of remaining valid is normally necessary.About all being important for the easy to use of medical science practitioner with for patient's existence.Be auxiliary these targets, laryngeal mask airway device usually provides the independently lubricationg jelly that is applied to airway device before insertion bag.
The application of lubricationg jelly has reduced the friction between airway device and patient's general breathing road, has improved the easiness that artificial airway device inserts.Yet verified to provide the lubricationg jelly of unitary part to each device be time-consuming, complicated and costliness.The lubricant of the single part of packing is inconvenient to the process in the pouch separately, and produces the problem that common experience is for example exploded or overflowed.This has caused and has wasted the common problem that increases with relevant cost, and relevant factory personnel slips on the lubricant that overflows and the risk of injured health and safety.In addition, the factory that is used to produce medical apparatus must be the disinfectant environment, so the overflow of lubricationg jelly must enter so that prevent bacterial growth or dirt and dust with expensive and inconvenient and cleaned up.
Further shortcoming is present in and relates to the airway device that is had lubricationg jelly by medical science practitioner use.For example, lubricationg jelly is applied to the step that airway device has increased insertion process, has therefore increased and set up the required time span of respiratory tract in the patient.Especially, this is problem in the emergency medical service state, and setting up artificial respiratory tract in this process fast is crucial for patient's existence.In case even respiratory tract has been set up, lubricationg jelly can be absorbed in the general breathing road that enters the patient and maybe may dry up, make this device may rub, and the patient may experience painful after this program along the skin of patient's general breathing road arrangement.Not needing concerning artificial airway device, also to have kept lubricationg jelly just can easily insert and remain on the needs of the position among the patient.
Summary of the invention
The purpose of this invention is to provide synthetic, additive, the method and apparatus of managing to alleviate one or more shortcomings above-mentioned.
In a first aspect of the present invention, a kind of laryngeal mask airway device of being convenient to unconscious patient's pulmonary ventilation is provided, be included in an open-ended bending or the softish pipe of the inside that enters empty cover part, this cover part comprises back plate and cover capsule, this cover is partially-formed to meet and to be adapted at easily reality and the potential space of larynx back, and around the circumferential sealing of the inlet of larynx and the impermeable inside that enters larynx is characterized in that at least a portion on the surface of this device comprises Parylene.This Parylene is provided for the low-friction surface of the improvement insertion of artificial airway device.
Preferably, the cover capsule is expandable.This feature can in use expand to improve around the sealing of patient's glottis opening, makes by reducing leakage that air overflows rather than guiding by entering in the lung, improves the effectiveness of respiratory tract.
Preferably, the part that comprises Parylene is the face shield part.Because first of this device and the wideest part will unlikely produce against the friction in patient's general breathing road, so it is easy in the friction lining of the reduction of this position increase to be used for the portability that device inserts on the Parylene face shield.
Preferably, the part that comprises Parylene is the cover capsule.This will provide against the advantage of the friction of the reduction of the larynx side of patient's respiratory tract and pharynx side, simultaneously because the zone still less of face shield part needs the Parylene lining, so this advantage of may be provided in.
Preferably, the part that is covered by parylene film is to breathe the outer surface of deferent.The reduction of the friction that produces along the whole length of breathing deferent has substantial influence to the easiness that laryngeal mask airway device can insert among the patient.In addition, if the friction between the pipe of general breathing road and laryngeal mask airway device reduces, " sore throat " that is experienced usually by the patient after intubation may reduce so.
Preferably, the cover part is formed by soft rubber or plastic material, has the tube elements that is formed its expansible periphery and/or rear portion by same material.
Preferably, the cover part is made individually with pipe bending or softish, and is installed to the cover part in the mode of sealing.This feature is guaranteed the facility of producing and the adaptability of device.
Preferably, at the end of the pipe of the inside opening that enters cover part by with respect to the angled cut-out of the length of pipe.Thereby the end of breathing deferent can advantageously provide semirigid ridge and cover to this.
In a second aspect of the present invention, a kind of method that is used to produce laryngeal mask airway device is provided, comprise laryngeal mask airway device is provided, in vacuum chamber, be exposed to the small part laryngeal mask airway device and be aggregated in Parylene steam and when allowing Parylene steam on the surface of exposure of laryngeal mask airway device in room temperature.Because the Parylene lining will be solidified when room temperature, so unnecessary being exposed to worked as high temperature, solvent and the solidifying pressure that uses the polymer covering surfaces to need often for laryngeal mask airway device.
Preferably, pretreatment will be used the adhesion of the surface of Parylene covering with convenient parylene film.
Preferably, use silane to adhere to the surface that the pretreatment of enhancing process will use Parylene to cover.
Description of drawings
Referring now to accompanying drawing, describe embodiments of the invention, in the accompanying drawing by the mode of example:
Figure 1A demonstrates the side view of the pouch of the laryngeal mask airway device of existing technology and lubricationg jelly;
Figure 1B demonstrates the perspective view of pharynx side of the laryngeal mask airway device of existing technology;
Fig. 1 C demonstrates the side view of larynx side of the intubate laryngeal mask airway device of existing technology;
Fig. 2 demonstrates the laryngeal mask airway device with insertion endotracheal tube wherein that is in complete insert structure, the position of the lubricationg jelly during indication is used;
Fig. 3 A illustrates the side view of laryngeal mask airway device of the present invention, and wherein complete cover partly comprises Parylene;
Fig. 3 B illustrates the side view of laryngeal mask airway device of the present invention, wherein overlaps capsule and comprises Parylene;
Fig. 3 C illustrates the side view of laryngeal mask airway device of the present invention, and the outside of wherein breathing deferent comprises Parylene; And
Fig. 3 D illustrates the side view of laryngeal mask airway device of the present invention, and the inboard of wherein breathing deferent comprises Parylene.
The specific embodiment
Figure 1A demonstrates the side view of the disposable laryngeal mask airway device 100 of existing technology, together with as and the pouch 101 of the lubricationg jelly that provides of one type of prior art syringe.When Fig. 2 illustrates in inserting the patient, the partial cross section side view of device 100, the different examples of the position of the lubricationg jelly 102 during indication is used.With reference to figure 1, device 100 comprises breathes deferent 110 and cover part 130.Cover part 130 comprises that dull and stereotyped 112 also can comprise expandable cover capsule 134.Cover part 130 extends to far-end 138 from near-end 136.Cover part 130 is attached to the distal portions 112 of breathing deferent 110.As shown in Figure 1B, wherein install 100 cover part 130 and comprise expandable cover capsule 134, device 100 also will comprise expansion line 190 and the check-valves 192 that is used for optionally expanding and dwindles cover capsule 134.
In operation, lubricationg jelly 102 is applied to the small part laryngeal mask airway device, and should the cover part insert in patient's the pharynx by patient's mouth subsequently.This device of preferred orientation makes the far-end 138 of cover part 130 rely on patient's normally closed esophagus, and makes the opening 140 of cover part 130 be parallel to the access road (patient's glottis opening just) of patient's trachea.In this cover part so behind the location, if should cover part comprise expandable cover capsule, so described cover capsule expands and forms sealing around patient's glottis opening 212, and foundation extends to the respiratory tract of sealing of patient's trachea from the near-end 114 of breathing deferent 110.
Fig. 2 illustrates and is in the laryngeal mask airway device 100 that inserts configuration fully.As shown in the figure, the far-end extruding patient's of this cover part 130 sphincter of gullet 210.In addition, opening of this cover part forms sealing around glottis 212, thereby makes this device 100 that the fluid transmission with trachea 214 can be provided.Though to be example and it can be applied to that other covers go up with auxiliary inserts for this, the position that can see lubricationg jelly 102 is around the cover part of this device and breathing deferent.In use, this cover part 130 is inserted in patient's the pharynx by patient's mouth.
Fig. 3 A to 3D illustrates a plurality of views of improved laryngeal mask airway device 300 arranged according to the present invention.Device 300 comprises breathes deferent 310 and cover part 334.This cover 334 extends to far-end 338 from near-end 336.If this cover part comprises expandable peripheral ring, install 300 so and will comprise the expansion line of the near-end that is attached to the cover capsule, and the check-valves of the expandable part of the cover part that is used for optionally expanding.This device 300 can also comprise the expandable part at rear portion.As directed, this device is included in the outside of for example covering part 334, expandable peripheral ring 336, breathing deferent 310 or breathes the Parylene (Fig. 3 A-3D respectively) of diverse location of the inboard of deferent 310.
Parylene is the dimer polymer that can be used to cover many dissimilar surfaces.Overwrite procedure comprises that at first heating dimer polymer makes it form steam.Steam is sent to the vacuum chamber on the surface that holds the product that will cover.When steam entered this chamber, it attracted to cool basic unit (surface of the product that will cover), and before cooling, cool basic unit is covered (about 1 micron thickness usually) equably.There is dissimilar Parylenes, for example Parylene N, Parylene C and Parylene D (selling) by Para Tech Coating Inc. company, they have the ability that penetrates the slit of reduction respectively.
Because it is shockingly desirable that multiple reason, Parylene are used to cover laryngeal mask airway device.Parylene film is biocompatible and Biostatic, therefore is suitable for the layout in the patient.That the gaseous deposit process allows is extremely thin, unified conformal thin film is formed on all elements of device particularly less part, chamber and other zones that is difficult to arrive.Because do not comprise liquid phase,, thereby and can not accumulate in pipe or the slit so there is not capillarity in Parylene.In addition, Parylene covers and will solidify when room temperature, unnecessary being exposed to when the potential destructive high temperature, solvent and the solidifying pressure that use the polymer covering surfaces to need often for laryngeal mask airway device.Because Parylene can also be sterilized, so it can be used as the lining of reusable device, and the device of single use.
Though the laryngeal mask airway device of any kind can use Parylene to cover, those skilled in the art will recognize the Parylene lining and may be constrained in dissimilar surface with change intensity.As a result, some surfaces may need extra processing before being exposed to Parylene steam.For example, comprise that it may be necessary with the PVC part that convenient parylene film is adhered to device that silane adheres to the enhancing process.In other respects, it is very good that Parylene is adhered to silicones, thereby do not need extra process before carrying out deposition.
Parylene is covered as laryngeal mask airway device multiple advantage is provided.Lubricated the making of drying that increases device can be inserted device without lubricationg jelly.This has handled problem discussed above, relates to costliness, complicated and process waste that independent lubricationg jelly pouch is provided with each airway device.In addition, because the friction that reduces, device easier insertion concerning the medical science practitioner makes artificial respiratory tract to set up more quickly.Patient's the skin in case insertion patient's respiratory tract, the part that is coated with this device of Parylene will still less rub.Thereby Parylene lining to the medical science practitioner and concerning patient's existence and comfortable advantage is provided.That the Parylene coating provides is hydrophobic, chemically resistance covers, thereby and can also help to protect the part of airway device, otherwise it is owing to corrode susceptible at the gastrointestinal fluid of the possible adverse current of anestheticing period.

Claims (16)

1. laryngeal mask airway device of being convenient to unconscious patient's pulmonary ventilation, comprise: breathe deferent, described breathing deferent is in an end openings of the inside that enters empty cover part, the cover part comprises back plate and cover capsule, described cover is partially-formed to meet and to be adapted at easily reality and the potential space of larynx back, and around the circumferential sealing of the inlet of larynx, and the impermeable inside that enters larynx is characterized in that: the surface of this device comprise Parylene to small part.
2. according to the laryngeal mask airway device of claim 1, wherein: the cover capsule is expandable.
3. according to the laryngeal mask airway device of claim 1, wherein: the described part that comprises Parylene is the cover part.
4. according to the laryngeal mask airway device of claim 1, wherein: the described part that comprises Parylene is a cover capsule part.
5. according to the laryngeal mask airway device of claim 1, wherein: the described part that comprises Parylene is to breathe the outer surface of deferent.
6. according to the laryngeal mask airway device of claim 1, wherein: described cover part is formed by softish rubber tube or plastic material, and the tube element with same material forms its cover capsule.
7. according to the laryngeal mask airway device of claim 1, wherein: described cover part is made by pipe bending or softish respectively, and is fastened to the there in the mode of hermetic seal.
8. according to the laryngeal mask airway device of claim 5, wherein: opening enters the length of the described relatively pipe of end of described pipe of the inside of described cover part and cuts off with an angle.
9. one kind basically as laryngeal mask airway device described here.
10. make the method for each described laryngeal mask airway device of claim as described above for one kind, comprising:
A., laryngeal mask airway device is provided;
B. in vacuum chamber, be exposed to the small part laryngeal mask airway device in Parylene steam;
C. allow Parylene steam when room temperature, to be aggregated on the surface of exposure of laryngeal mask airway device.
11. according to the method for claim 12, wherein: the surface that pretreatment will be covered by Parylene is to strengthen the viscosity of parylene film.
12. according to the method for claim 13, wherein: use silane to adhere to the enhancing process and surface that pretreatment will be capped.
13. one kind basically as the method for manufacturing laryngeal mask airway device described here.
CNA2008101778895A 2007-10-12 2008-10-13 Laryngeal mask airway device including parylene Pending CN101422636A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0719996.1 2007-10-12
GB0719996A GB2456747A (en) 2007-10-12 2007-10-12 Laryngeal mask airway device with a parylene coating

Publications (1)

Publication Number Publication Date
CN101422636A true CN101422636A (en) 2009-05-06

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CN (1) CN101422636A (en)
AR (1) AR068842A1 (en)
GB (1) GB2456747A (en)
TW (1) TW200924808A (en)
WO (1) WO2009047632A2 (en)

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CN107737394A (en) * 2017-11-15 2018-02-27 方峥评 A kind of Puffer-type rinses laryngeal mask
CN114177448A (en) * 2021-12-20 2022-03-15 河南亚太医疗用品有限公司 Medical laryngeal mask with epidermis contact anti-drying structure based on medical treatment
WO2022174549A1 (en) * 2021-02-20 2022-08-25 浙江简成医疗科技有限公司 Medical laryngeal mask

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US11517693B2 (en) * 2018-02-07 2022-12-06 Zhejiang Ue Medical Corp. Visual laryngeal mask

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WO2022174549A1 (en) * 2021-02-20 2022-08-25 浙江简成医疗科技有限公司 Medical laryngeal mask
CN114177448A (en) * 2021-12-20 2022-03-15 河南亚太医疗用品有限公司 Medical laryngeal mask with epidermis contact anti-drying structure based on medical treatment
CN114177448B (en) * 2021-12-20 2023-12-15 河南亚太医疗用品有限公司 Medical laryngeal mask with contact epidermis anti-drying structure based on medical use

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WO2009047632A2 (en) 2009-04-16
TW200924808A (en) 2009-06-16
AR068842A1 (en) 2009-12-09
GB2456747A (en) 2009-07-29
GB0719996D0 (en) 2007-11-21

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