NL2023355B1 - Oropharyngeal airway device - Google Patents

Oropharyngeal airway device Download PDF

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Publication number
NL2023355B1
NL2023355B1 NL2023355A NL2023355A NL2023355B1 NL 2023355 B1 NL2023355 B1 NL 2023355B1 NL 2023355 A NL2023355 A NL 2023355A NL 2023355 A NL2023355 A NL 2023355A NL 2023355 B1 NL2023355 B1 NL 2023355B1
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NL
Netherlands
Prior art keywords
airway device
oropharyngeal airway
oropharyngeal
longitudinal axis
protrusions
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Application number
NL2023355A
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Dutch (nl)
Inventor
Bruhn Jörgen
Van Geffen Geert-Jan
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Stichting Katholieke Univ
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Publication date
Application filed by Stichting Katholieke Univ filed Critical Stichting Katholieke Univ
Priority to NL2023355A priority Critical patent/NL2023355B1/en
Priority to PCT/NL2020/050390 priority patent/WO2020256547A1/en
Application granted granted Critical
Publication of NL2023355B1 publication Critical patent/NL2023355B1/en

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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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0486—Multi-lumen tracheal tubes
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0495—Mouthpieces with tongue depressors
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
    • 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. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • 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
    • A61M2207/00—Methods of manufacture, assembly or production

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (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)
  • Otolaryngology (AREA)
  • Prostheses (AREA)

Abstract

Oropharyngeal airway device having a singular body (2) of a first material. The singular body (2) has an elongate shape along a substantially longitudinal axis (3) and has a uniform cross section perpendicularto the substantially longitudinal axis (3). The substantially uniform cross section has at least three stub portions (4) extending radially from the substantially longitudinal axis (3).

Description

P6080658NL 1 Oropharyngeal airway device Field of the invention The present invention relates to an oropharyngeal airway device to be used to provide a clear and unobstructed airway in partially or fully unconscious patients, e.g. during operations, when a patient is sedated or anesthetized. Background art US patent publication US3,568,680 discloses an oropharyngeal airway device having a pair of curved substantially planar members, connected in spaced substantially parallel relation by an internal generally central web portion. The planar members may furthermore be provided with holes. International patent publication WO2017/006117 discloses an oropharyngeal airway device with a circumferential wall (i.e. tube shaped), having at least one aperture or slit in the length of the longitudinal axis of the circumferential wall.
Summary of the invention The present invention seeks to provide an improved oropharyngeal airway device, which is easy to use and provides a reliable and secure air passage to the lungs of a patient. According to the present invention, an oropharyngeal airway device as defined above is provided, comprising a singular body of a first material, the singular body having an elongate shape along a substantially longitudinal axis and having a uniform cross section perpendicular to the substantially longitudinal axis. The substantially uniform cross section comprises at least three stub portions extending radially from the substantially longitudinal axis. By providing this star shaped cross section, a plurality of robust and secure pathways is formed after application of the oropharyngeal airway device in a patient's airway, securing air passage to the lungs of the patient under all circumstances. Further embodiments are described in the below description and by the appended claims, with specific further advantages. Short description of drawings The present invention will be discussed in more detail below, with reference to the attached drawings, in which Fig. 1 shows a side view of an embodiment of an oropharyngeal airway device in accordance with the present invention; Fig. 2 shows a cross sectional view of a further embodiment of an oropharyngeal airway device in accordance with the present invention; Fig. 3 shows a cross section view of an alternative oropharyngeal airway device embodiment in accordance with the present invention; and
P6080658NL 2 Fig. 4 shows a side view of an even further embodiment of an oropharyngeal airway device in accordance with the present invention. Description of embodiments The present invention relates to devices which can be used for airway management in anesthesia, e.g. during surgery, diagnostic procedures, or unconscious patients. One of the main problems in anesthesia is to keep the airway open in anesthetised or sedated patients. Due to unconsciousness, the (drug-induced) relaxation of the pharyngeal muscles let the tongue fall back and obstruct the airway and blocks respiration. If not treated it leads to a suffocating patient. The invention embodiments relate to an oropharyngeal airway device 1 arranged to keep the airway open to ensure spontaneous or manual ventilation.
The presently available technology mainly offers tubes with a lumen having two open ends, like an oropharyngeal tube or a nasopharyngeal tube. Oropharyngeal tubes are rigid or semi-rigid tubes which can be inserted through the mouth to leave a proximal end at the lips of the patient and a distal end in the back of the mouth or pharynx proximal of the epiglottis. This bypasses the structures of the upper airway to allow a patient to breathe through the oropharyngeal airway tube. The tube like airway devices have several disadvantages. As the tube is blindly inserted it is not known where the open end lies. The open end of the tube should end behind the obstruction caused by the tongue but it should not end in the esophagus (as this would cause gastric insufflations). The single air channel may become partially or completely blocked due to accumulation of fluids in the mouth and pharynx. Commonly used standard sizes may be too short or too long for an individual patient. If too long, a distal open end of the tube may be positioned against mucosa, pharynx tissue, the epiglottis or in the esophagus, preventing free air flow towards the lungs. Commonly used oropharyngeal airway tubes do not hold a patient's naso-pharyngeal passage open (which is important to maintain oxygen availability if the patient is receiving oxygen supplementation through the nose, e.g. by nasal prongs of a nasal cannula at high or low flow rates).
Fig. 1 shows a side view of a first embodiment of an oropharyngeal airway device in accordance with the present invention. The oropharyngeal airway device comprises a singular body 2 of a first material, the singular body 2 having an elongate shape along a substantially longitudinal axis 3 and having a uniform cross section perpendicular to the substantially longitudinal axis 3. The substantially uniform cross section comprising at least three stub portions 4 extending radially from the substantially longitudinal axis 3. Air channels are formed during use between the stub portions 4 and e.g. the trachea wall, i.e. the invention embodiments do not have a single lumen with a proximal and distal open end.
An additional advantage of the intervention embodiments is that it will not cause gastric insufflation even when the end 2a of the singular body 2 is positioned in the esophagus (the air will still go the way of the least resistance). The flow is also not obstructed even when the end 2a lies against tissue. Furthermore, as the oropharyngeal airway device 1 is orally inserted, there will also be a free nasal flow of air or oxygen. It is noted that the air flow through the oropharyngeal airway 40 device 1 can be partially obstructed (e.g. by a back falling tongue), the possible partial obstruction
P6080658NL 3 will never be complete, as open sections will be present at the opposite side from the blockage. A big enough diameter of the oropharyngeal airway device 1 will always allow enough air or oxygen to flow freely.
As shown in the side view of Fig. 1, the elongate shape of the singular body 2 comprises an arched longitudinal shape, quite similar in shape to present examples of oropharyngeal tubes, which helps in inserting the oropharyngeal device 1 in a patient's airway.
As also shown in the side view of the exemplary embodiment of Fig. 1 and Fig. 4, the singular body 2 comprises a distal end 2a with a rounded off tip (seen as cross section of the singular body 2 parallel to substantially longitudinal axis 3). This will provide an easy application of the oropharyngeal airway device 1 into the patient's airway. It is noted that the distal end 2a with a rounded off tip can be a separate part attached to singular body 2, alternatively the rounded off tip of the distal end 2a can be formed by the at least three stub portions 4 comprising a rounded off tip at the distal end 2a of the singular body 2.
In the exemplary embodiment shown in Fig. 1, peripheral (or radial) stub tip portions 4d of the at least three stub portions 4 are arranged parallel to the substantially longitudinal axis 3, thus having stub portions 4 in the form of straight wings (and open airway sections in between) in the elongated direction of the singular body 2 of the oropharyngeal airway device 1. In alternative embodiments, the peripheral stub tip portions 4d of the at least three stub portions 4 are arranged non-parallel to the substantially longitudinal axis 3. The stub portions 4 are then e.g. arranged in a helical configuration or in an oscillating (wave) configuration.
In order to attach additional devices, such as an oxygen or a feeding tube, the oropharyngeal airway device may further comprise a connector 7 arranged in a proximal part of the oropharyngeal airway device 1, as shown in the side view of the embodiment shown in Fig. 1. The connector 7 may be an (integral) part of the singular body 2, e.g. implemented as a groove, or may be a separate connector member.
In addition, or alternatively, the oropharyngeal airway device 1 may further comprise a flanged end member 8, e.g. in the form of a mouth piece, arranged in a proximal part of the oropharyngeal airway device 1. Again the end member 8 may be implemented as an (integral) part of the singular body 2, or as a separate member. Furthermore, a bite block member 9 may be arranged in a proximal part of the oropharyngeal airway device 1, e.g. as part of the end member 8 (mouth piece). The bite block member 9 is arranged to protect a patient’s teeth, e.g. by using a soft(er) material.
The embodiments of which side views are shown in Fig. 1 and in Fig. 4 relate to an oropharyngeal airway device 1 having six stub portions 4. In further embodiments, the substantially uniform cross section comprises at least four stub portions 4, e.g. five or six stub portions. More stub portions 4 will result in an enhanced support against tissue such as the trachea wall or mucosa. Even then, there is still sufficient open area (in cross section) to keep the airway sufficiently open, and additionally one or two sections may be used for guiding further tubes (e.g. to provide air, fluid, etc. down the airway of the patient.
P6080658NL 4 In a cross sectional view (see e.g. the cross sectional view of the embodiments shown in Fig. 2 and 3, each having three stub portions 4), the present invention oropharyngeal airway device 1 looks like a star. In further embodiments, e.g. the one shown in cross sectional view in Fig. 3, the at least three stub portions 4 extend from a center part 5 of the uniform cross section. The center part 5 provides a more robust structure of the singular body 2. In an even further embodiment, the center part 5 is provided with an aperture 5a for providing a hollow central longitudinal channel, along the substantially longitudinal axis 3. This hollow central longitudinal channel provides an even further additional airway path, or may be used for channelling other fluids, etc.
Fig. 4 shows a side view of an embodiment of the present invention oropharyngeal airway device 1, wherein the at least three stub portions 4 comprise a plurality of apertures 6. The apertures 6 extending through the stub portions 4 improve air permeability by communication between the (air) channels formed during actual use. The apertures 6 can be in the form of holes (as shown), and alternatively or additionally, in the form of slits with various shapes, i.e. circular, oval, elliptical, triangular, rectangular, etc.
As shown in the cross sectional view of an exemplary embodiment of Fig. 2, the at least three stub portions 4 have a rounded-off radial tip portion 4c. This will enhance an easy application of the oropharyngeal airway device 1 into a patient's airway.
In an alternative embodiment, end portions 4a of the at least three stub portions 4 have an end portion thickness ta which is larger than a mid-portion thickness ts of mid portions 4b of the at least three stub portions 4, as shown in the exemplary embodiment's cross sectional view of Fig. 3. Again, this will enhance an ease of application of the oropharyngeal airway device 1 into a patient's airway, and also a better support against e.g. the trachea wall, ensuring sufficiently open sections between the stub portions 4 for an unobstructed flow of air.
The exemplary embodiments shown in Fig. 2 and Fig. 3 include the feature that the at least three stub portions 4 have an equal radial length Li. Depending on the number of stub portions 4, the singular body 2 during actual use will span a triangular, square, pentagonal, etc. cross section, which provided a good fitting within a generally circular cross section of the airway.
In an alternative embodiment, the at least three stub portions 4 have an unequal radial length Li. Again, the singular body 2 will then span a triangular, rectangular, pentagonal, etc. cross section, but the unequal radial length L; will allow the singular body 2 to fit within e.g. an oval or elliptic cross section.
In all embodiments described above with reference to the examples shown in Fig. 1-4, the singular body 2 is made of a single material, e.g. the first material is a flexible material. Such flexible material can be PVC, silicone, etc. which is regularly used for medical devices such as tubes and instruments. In alternative embodiments, the first material is a non-flexible material, such as PE, which has the advantage of a higher rigidity allowing better manipulation of the oropharyngeal airway device 1.
For production of large quantities of oropharyngeal airway devices 1 in accordance with any of the embodiments described herein, a method of manufacturing an oropharyngeal airway 40 device 1 may be provided, comprising moulding of the singular body 2 (e.g. injection moulding).
P6080658NL Separate moulds may be provided for various sizes and dimensions of the oropharyngeal airway device 1.
Alternatively, a method of manufacturing an oropharyngeal airway device 1 is provided, comprising three dimensional printing of the singular body 2. The three dimensional printing may 5 be advantageous when small series are needed, e.g. with specific dimensions of (parts of) the oropharyngeal airway device 1. The shape of the oropharyngeal airway device 1 allow various types of three dimensional printing, such as fused deposition modelling (FDM) or additive manufacturing (AM) techniques.
The present invention can be implemented in various embodiments, such as the exemplary embodiments described above with reference to the attached drawings. The invention can also be summarized as the following set of interdependent embodiments.
Embodiment 1. Oropharyngeal airway device comprising a singular body (2) of a first material, the singular body (2) having an elongate shape along a substantially longitudinal axis (3) and having a substantially uniform cross section perpendicular to the substantially longitudinal axis (3), the substantially uniform cross section comprising at least three stub portions (4) extending radially from the substantially longitudinal axis (3).
Embodiment 2. Oropharyngeal airway device according to embodiment 1, wherein the substantially uniform cross section comprises at least four stub portions (4). Embodiment 3. Oropharyngeal airway device according to embodiment 1 or 2, wherein the at least three stub portions (4) extend from a center part (5) of the uniform cross section.
Embodiment 4. Oropharyngeal airway device according to any one of embodiments 1-3, wherein the at least three stub portions (4) comprise a plurality of apertures (6).
Embodiment 5. Oropharyngeal airway device according to any one of embodiments 1-4, wherein the at least three stub portions (4) have a rounded-off radial tip portion (4c).
Embodiment 6. Oropharyngeal airway device according to any one of embodiments 1-5, wherein end portions (4a) of the at least three stub portions (4) have an end portion thickness (ta) which is larger than a mid-portion thickness (ts) of mid portions (4b) of the at least three stub portions (4). Embodiment 7. Oropharyngeal airway device according to any one of embodiments 1-6, wherein the at least three stub portions (4) have an equal radial length (Li).
Embodiment 8. Oropharyngeal airway device according to any one of embodiments 1-6, wherein the at least three stub portions (4) have an unequal radial length (Li).
Embodiment 9. Oropharyngeal airway device according to any one of embodiments 1-8, wherein peripheral stub tip portions (4d) of the at least three stub portions (4) are arranged parallel to the substantially longitudinal axis (3).
Embodiment 10. Oropharyngeal airway device according to any one of embodiments 1-8, wherein peripheral stub tip portions (4d) of the at least three stub portions (4) are arranged non- parallel to the substantially longitudinal axis (3).
Embodiment 11. Oropharyngeal airway device according to any one of embodiments 1-10, wherein the singular body (2) comprises a distal end (2a) with a rounded off tip.
P6080658NL 6 Embodiment 12. Oropharyngeal airway device according to any one of embodiments 1-11, further comprising a connector (7) arranged in a proximal part of the oropharyngeal airway device (1). Embodiment 13. Oropharyngeal airway device according to any one of embodiments 1-12, further comprising a flanged end member (8) arranged in a proximal part of the oropharyngeal airway device (1). Embodiment 14. Oropharyngeal airway device according to any one of embodiments 1-13, further comprising a bite block member (9) arranged in a proximal part of the oropharyngeal airway device (1). Embodiment 15. Oropharyngeal airway device according to any one of embodiments 1-14, wherein the first material is a flexible material.
Embodiment 16. Oropharyngeal airway device according to any one of embodiments 1-14, wherein the first material is a non-flexible material.
Embodiment 17. Method of manufacturing an oropharyngeal airway device according to any one of embodiments 1-16, comprising moulding of the singular body (2). Embodiment 18. Method of manufacturing an oropharyngeal airway device according to any one of embodiments 1-16, comprising three dimensional printing of the singular body (2). The present invention has been described above with reference to a number of exemplary embodiments as shown in the drawings.
Features of these embodiments may be combined in even further embodiments.
Modifications and alternative implementations of some parts or elements are possible, and are included in the scope of protection as defined in the appended claims.

Claims (18)

P8080658NL 7 ConclusiesP8080658EN 7 Conclusions 1. Oropharyngeale luchtweginrichting omvattend een singulier lichaam (2) van een eerste materiaal, waarbij het singuliere lichaam (2) een langgerekte vorm heeft langs een in hoofdzaak longitudinale as (3) en een in hoofdzaak uniforme doorsnede heeft loodrecht op de in hoofdzaak longitudinale as (3), waarbij de in hoofdzaak uniforme doorsnede ten minste drie uitsteekdelen (4) omvat die zich radiaal uitstrekken vanaf de in hoofdzaak longitudinale as (3).An oropharyngeal airway device comprising a singular body (2) of a first material, the singular body (2) having an elongated shape along a substantially longitudinal axis (3) and having a substantially uniform cross-section perpendicular to the substantially longitudinal axis (3), wherein the substantially uniform cross-section includes at least three protrusions (4) extending radially from the substantially longitudinal axis (3). 2. Oropharyngeale luchtweginrichting volgens conclusie 1, waarbij de in hoofdzaak uniforme doorsnede ten minste vier uitsteekdelen (4) omvat.The oropharyngeal airway device of claim 1, wherein the substantially uniform cross-section includes at least four protrusions (4). 3. Oropharyngeale luchtweginrichting volgens conclusie 1 of 2, waarbij de ten minste drie uitsteekdelen (4) zich uitstrekken vanaf een middendeel (5) van de uniforme doorsnede.The oropharyngeal airway device of claim 1 or 2, wherein the at least three protrusions (4) extend from a central portion (5) of the uniform cross section. 4. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-3, waarbij de ten minste drie uitsteekdelen (4) een veelvoud openingen (6) omvat.The oropharyngeal airway device of any one of claims 1 to 3, wherein the at least three protrusions (4) comprise a plurality of openings (6). 5. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-4, waarbij de ten minste drie uitsteekdelen (4) een afgerond radiaal tipgedeelte (4c) hebben.The oropharyngeal airway device of any of claims 1 to 4, wherein the at least three protruding portions (4) have a rounded radial tip portion (4c). 6. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-5, waarbij einddelen (4a) van de ten minste drie uitsteekdelen (4) een einddeeldikte (ta) hebben die groter is dan een middendeeldikte (tb) van middendelen (4b) van de ten minste drie uitsteekdelen (4).Oropharyngeal airway device according to any one of claims 1 to 5, wherein end parts (4a) of the at least three protruding parts (4) have an end part thickness (ta) that is greater than a middle part thickness (tb) of middle parts (4b) of the ten at least three protrusions (4). 7. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-6, waarbij de ten minste drie uitsteekdelen (4) een gelijke radiale lengte (Li) hebben.The oropharyngeal airway device of any one of claims 1 to 6, wherein the at least three protrusions (4) are of equal radial length (Li). 8. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-6, waarbij de ten minste drie uitsteekdelen (4) een ongelijke radiale lengte (Li) hebben.The oropharyngeal airway device of any one of claims 1-6, wherein the at least three protrusions (4) have unequal radial length (Li). 9. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-8, waarbij omtreksuitsteektipdelen (4d) van de ten minste drie uitsteekdelen (4) parallel aan de in hoofdzaak longitudinale as (3) ingericht zijn.The oropharyngeal airway device according to any of claims 1 to 8, wherein peripheral protrusion tip portions (4d) of the at least three protrusion members (4) are arranged parallel to the substantially longitudinal axis (3). 10. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-8, waarbij omtreksuitsteektipdelen (4d) van de ten minste drie uitsteekdelen (4) niet-parallel aan de in hoofdzaak longitudinale as (3) ingericht zijn.The oropharyngeal airway device of any of claims 1 to 8, wherein peripheral protrusion tip portions (4d) of the at least three protrusion members (4) are arranged non-parallel to the substantially longitudinal axis (3). 11. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-10, waarbij het 40 singuliere lichaam (2) een distaal uiteinde (2a) omvat met een afgeronde tip.The oropharyngeal airway device of any one of claims 1-10, wherein the singular body (2) comprises a distal end (2a) with a rounded tip. P8080658NL 8P8080658EN 8 12. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-11, verder omvattend een connector (7) die is ingericht in een proximaal deel van de oropharyngeale luchtweginrichting (1).The oropharyngeal airway device of any of claims 1-11, further comprising a connector (7) disposed in a proximal portion of the oropharyngeal airway device (1). 13. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-12, verder omvattend een van een flens voorzien einddeel (8) dat is ingericht in een proximaal deel van de oropharyngeale luchtweginrichting (1).An oropharyngeal airway device according to any of claims 1-12, further comprising a flanged end portion (8) disposed in a proximal portion of the oropharyngeal airway device (1). 14. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-13, verder omvattend een bijtblokkeerdeel (9) dat is ingericht in een proximaal deel van de oropharyngeale luchtweginrichting (1).The oropharyngeal airway device according to any of claims 1-13, further comprising a bite blocking portion (9) disposed in a proximal portion of the oropharyngeal airway device (1). 15. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-14, waarbij het eerste materiaal een flexibel materiaal is.The oropharyngeal airway device of any of claims 1 to 14, wherein the first material is a flexible material. 16. Oropharyngeale luchtweginrichting volgens één van de conclusies 1-14, waarbij het eerste materiaal een niet-flexibel materiaal is.The oropharyngeal airway device of any of claims 1 to 14, wherein the first material is a non-flexible material. 17. Werkwijze voor vervaardigen van een oropharyngeale luchtweginrichting volgens één van de conclusies 1-18, omvattend gieten van het singuliere lichaam (2).A method of manufacturing an oropharyngeal airway device according to any one of claims 1-18, comprising casting the singular body (2). 18. Werkwijze voor vervaardigen van een oropharyngeale luchtweginrichting volgens één van de conclusies 1-16, omvattend driedimensionaal printen van het singuliere lichaam (2).A method of manufacturing an oropharyngeal airway device according to any of claims 1-16, comprising three-dimensional printing of the singular body (2). KAEKKAKKKAEKKAKK
NL2023355A 2019-06-21 2019-06-21 Oropharyngeal airway device NL2023355B1 (en)

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NL2023355A NL2023355B1 (en) 2019-06-21 2019-06-21 Oropharyngeal airway device
PCT/NL2020/050390 WO2020256547A1 (en) 2019-06-21 2020-06-18 Oropharyngeal airway device

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