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WO2025103926A1 - Ensemble ouvre-bouche - Google Patents

Ensemble ouvre-bouche Download PDF

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Publication number
WO2025103926A1
WO2025103926A1 PCT/EP2024/081817 EP2024081817W WO2025103926A1 WO 2025103926 A1 WO2025103926 A1 WO 2025103926A1 EP 2024081817 W EP2024081817 W EP 2024081817W WO 2025103926 A1 WO2025103926 A1 WO 2025103926A1
Authority
WO
WIPO (PCT)
Prior art keywords
bite block
insert
insert head
block arrangement
channel
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
PCT/EP2024/081817
Other languages
German (de)
English (en)
Inventor
Lutz Freitag
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.)
Oxygain Institute GmbH
Original Assignee
Oxygain Institute GmbH
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 Oxygain Institute GmbH filed Critical Oxygain Institute GmbH
Publication of WO2025103926A1 publication Critical patent/WO2025103926A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B13/00—Instruments for depressing the tongue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
    • A61B90/16—Bite blocks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/90—Oral protectors for use during treatment, e.g. lip or mouth protectors
    • 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
    • A61M16/0488—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. ventilators; 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen

Definitions

  • the invention relates to a bite block arrangement according to the features of patent claim 1.
  • Bite blocks are used to facilitate the passage of an endoscope during gastroscopy or bronchoscopy. Forceful manipulation or excessively thick or non-lubricated tubes pose a risk of injury to the pharyngeal wall or perforation, especially when using rigid endoscopes, catheters, or stent delivery systems.
  • the invention is based on the object of demonstrating an improved bite block arrangement which reduces the risk of injuries, simplifies endoscopy and ensures a supply of breathing air or respiratory support.
  • the invention is solved by a bite block arrangement having the features of patent claim 1.
  • the bite block assembly is intended for endoscopic procedures, namely for gastroscopy and bronchoscopy.
  • the bite block assembly comprises a bite block and an elongated insert.
  • the bite block for placement between the teeth, has a front side facing away from the patient's oral cavity and a rear side facing the oral cavity, as well as upper and lower biting surfaces.
  • a bite block opening extends through the bite block from the front side to the rear side. It serves to precisely accommodate the elongated insert.
  • the elongated insert has an insert head at its proximal end that clamps into the bite opening and can be inserted.
  • the insert head is positioned in the bite block opening in a positionally oriented and releasable manner.
  • the position is oriented longitudinally, i.e., the insertion depth is limited. Furthermore, the position is oriented with respect to rotation around the longitudinal axis, which is reliably prevented.
  • the bite block opening is non-circular. The insert head cannot be rotated into the bite block opening.
  • the insert head engage positively with the bite block opening and be secured in the bite block opening, for example, by a type of snap connection.
  • the cross-section of the insert head is functionally matched to the cross-section of the bite block opening.
  • the insert head and/or the bite block are made of a resilient material, particularly plastic.
  • the bite block assembly is preferably used only once. It is a disposable item.
  • the insert head establishes the detachable connection between the bite block and the elongated insert.
  • the insert head is followed by an atraumatically rounded arch section oriented towards the patient’s oral cavity to protect the palate, whereby
  • the rounded arch section has a distal end oriented toward the trachea.
  • the curvature of the arch section is adapted to the anatomy of the palate.
  • the arch section has a palatal bridge along its length to protect the palate and the posterior pharyngeal wall.
  • an endoscope can subsequently be inserted through the insert head and the bite block opening into the oral cavity, whereby the endoscope abuts the palatal bar of the arch section without the risk of injuring or even perforating the mucous membranes in the palate or pharynx.
  • the elongated insert has at least one jet channel for breathing air on the side, i.e., buccal to the palatal bridge, extending from the insert head to the distal end.
  • Jet channels are preferably provided on both sides of the palatal bridge. The jet channels end at the distal end of the arch section, with the outlet openings always facing the trachea and, in particular, the glottis due to the curvature of the arch section. Breathing air can be supplied via the jet channel(s).
  • the insert head has a central longitudinal channel for accommodating the endoscope.
  • the longitudinal channel is open at one edge of the insert head.
  • the longitudinal channel which is open at the edge, allows the elongated insert to be subsequently inserted into the oral cavity at any time, even if an endoscope has already been passed through the bite block. This is best done when the patient's gag reflex has been eliminated by deep sedation.
  • an existing endoscope can be inserted into the longitudinal channel through a slot in the edge of the insert head. This step takes place outside the oral cavity.
  • the curved section is then inserted into the oral cavity first.
  • the insert head is moved longitudinally of the endoscope until the insert head is located in the bite block opening.
  • the tongue is pressed down, leaving a clear passage for the endoscope and breathing. Once the sedation is reduced and the patient awakens, the inserted insert head is removed, leaving the bite block in place for bite protection.
  • the slot through which the endoscope can be inserted into the longitudinal channel is preferably designed so that the endoscope cannot slip out of the longitudinal channel unhindered.
  • the slot can, for example, be angled in the longitudinal direction of the channel.
  • the insertion head can also be made of a resilient material, with the slot being narrower than the diameter of the endoscope. To insert the endoscope, the slot must be widened. The material of the head springs back, so that the slot returns to its original width.
  • the bite block assembly according to the invention consists in particular of a bite block and a combination of several inserts with differing geometries and/or sizes. Different sizes are intended for different patients, e.g., children or adults. Different geometries can be determined by the intended use; for example, the curved section at its distal end can have a slightly different curvature depending on whether a bronchoscopy or a gastroscopy is to be performed.
  • the curved section primarily serves to guide the endoscope in a tissue-friendly manner.
  • the distal end serves to direct the air toward the glottis. Accordingly, depending on the application and patient, inserts with varying geometries or sizes are provided as a set with a standardized bite block.
  • the patient's respiratory support or ventilation is provided via at least one jet channel in the curved section.
  • the insert head has a connection for jet ventilation.
  • the connection is, in particular, a Connection piece to which a hose can be attached that is connected to a ventilation unit.
  • the bite block assembly according to the invention advantageously has buccal cheek elements arranged along its curved section, so that the curved section is U-shaped in cross-section and open at the mandibular end.
  • the curved section open towards the tongue now fulfills additional functions: Firstly, the palate and the posterior pharyngeal wall are protected by the palatal bar. Furthermore, a U-shaped channel open at the mandibular end is created via the buccal cheek elements, which serves as a guide channel for an endoscope. This channel can also be referred to as a working channel.
  • the cheek elements can serve as bar-shaped tongue depressors to keep the airway clear.
  • a tongue depressor is a closed, spatula-like surface parallel to the surface of the tongue.
  • the buccal cheek elements are assemblies that are angled relative to the palatal bar, in particular at a 90° angle to the palatal bar.
  • These bar- or disc-shaped tongue hold-down devices press on the tongue with their free edge facing the tongue, thereby creating the working channel between the cheek elements.
  • the tongue depressor function can also be fulfilled if the cheek elements have buccal openings.
  • the openings can be so large that they consist only of individual rod- or bar-shaped cheek elements, which are attached to the insert head at their proximal ends and connected to the palatal bar at a distance from the insert head at their distal ends.
  • the slot in the insert head connected to the longitudinal channel is preferably located in a mandibular region of the insert head. If there are no such wall elements, the slot can also be arranged buccally.
  • at least one lingual bar is located on the insert head at a distance from the palatal bar as a tongue retractor.
  • the palatal bar and the lingual bar are not connected to each other, but only via their proximal ends to the insert head.
  • an endoscope cannot be inserted from the mandibular side of the insert head into the central longitudinal channel of the insert head. Consequently, the slot in this embodiment is arranged buccally, so that the endoscope can be inserted laterally between the palatal bar and the lingual bar. If two parallel lingual bars are provided as tongue retractors, the slot can again be arranged mandibularly.
  • At least one suction channel for fluids is arranged in the tongue depressor, more precisely in at least one of the cheek elements, preferably in both cheek elements. Suctioning the fluids reduces the risk of fluids being entrained from the oral cavity by the jet stream and entering the lungs.
  • the insert according to the invention is preferably made of a plastic material intended for single use.
  • the curved section can accordingly have a predetermined elasticity which should be sufficient so that, when used as intended, the curved section is slightly bent relative to the insert head upon contact with the palate or back of the throat. This ensures that the distal end of the curved section always points towards the trachea, so that air from the jet channel can be directed specifically to the trachea.
  • the elasticity of the curved section can even increase depending on body temperature.
  • the elasticity of the curved section can also increase gradually or in stages. On the one hand, the elasticity can increase due to the shape, i.e., the curved section is less rigid, e.g., narrower, towards its distal end. It is also conceivable that there is a material-related gradient, so that the material at the distal end is more flexible than at the proximal end of the arc section, with the same geometry and at the same temperature.
  • the bite block assembly according to the invention is particularly advantageous when using semi-rigid or rigid endoscopes or catheters, which would inevitably collide with the back of the throat and, in the worst case, could lead to perforation. Sliding against a plastic tongue, such as that formed by a palatal bar of the arch section, reliably prevents such injuries.
  • Figure 1 shows a bite block arrangement for an endoscopy procedure on a model of the oral cavity
  • Figure 2 shows the bite block arrangement of Figure 2 on an anatomical model
  • Figure 3 shows a bite block in a frontal view
  • Figure 4 shows an insert of the bite block arrangement in a side view
  • Figure 5 shows the insert of Figure 4 in a view from below
  • FIG. 6 shows the use of figures 4 and 5 in three different perspectives
  • Figure 7 shows a further embodiment of an insert in a perspective view
  • Figure 8 shows the insert of Figure 8 in a side view
  • Figure 9 shows a further embodiment of an insert
  • Figure 10 shows another embodiment of an insert
  • Figure 11 shows another embodiment of an insert
  • Figure 12 shows another embodiment of an insert.
  • Figures 1 and 2 show, with the aid of an anatomical model made of plastic, a bite block arrangement 1 comprising a bite block 2 and a elongated insert 3.
  • the bite block 2 is located in a model 4 of the oropharynx.
  • the bite block 2 has a front side 6 facing away from the oral cavity 5 of the patient or the model 4, a rear side 7 opposite the front side 6 as well as upper and lower biting surfaces 8, 9 and a bite block opening 10 extending from the front side 5 to the rear side 7, which serves to receive an endoscope 11 (Figure 2) or the insert 3.
  • the elongated insert 3 has a proximal end 12 with an insert head 13.
  • the insert head 13 is designed to be clamped into the bite block opening 10.
  • the insert head 13 has an outer contour corresponding to the bite block opening 10 (Figure 3).
  • Figure 3 shows that the bite block opening 10 is essentially rectangular, but has curved constrictions in its lateral areas, i.e., toward the corners of the mouth, so that the cross-section of the bite block opening 10 can be described as cushion-shaped. This prevents accidental misinsertion.
  • the bite block 2 has six lateral fastening tabs 14, 15 on its front side for securing the bite block 2 via straps.
  • the bite block 2 further has at least one nozzle-shaped connection 15, 16, either in the lateral corner area or on its front side 6.
  • the connections 15, 16 serve for the passage of gases or as measuring connections.
  • Channels (not shown) are formed in the bite block 2, which open laterally into the bite block opening 10. These internal channels are used to transmit, for example, ventilation gases to adapters that
  • the elongated insert 3 has, in addition to the insert head 13, which fits into the bite block opening 10, an atraumatically rounded curved section 17 adjoining the insert head 13.
  • Atraumatic in this context means that the curved section 17 is rounded in such a way that it protects the palate or the pharynx and has no sharp edges.
  • Figure 2 shows the use on model 4.
  • an area 19 can be seen on the posterior pharyngeal wall 18 that should not be injured or even punctured during endoscopy.
  • the curved section 17 protects the posterior pharyngeal wall from injury when the endoscope 11 is inserted by deflecting the flexible endoscope 11 ( Figure 2).
  • the special feature of the bite block arrangement according to the invention is that the insert 3 can still be inserted into the bite block opening 10 even when the endoscope 11 is already in the bite block opening 10.
  • the elongated insert is not designed as a tube.
  • the curved section 17 has a palatal ridge 20 extending longitudinally from the proximal to the distal end to protect the palate and the posterior pharyngeal wall 18. Furthermore, it has a jet channel 22 for breathing air buccal to the palatal ridge 20, extending from the insert head 13 to the distal end 21 ( Figure 5).
  • the insert head 13 has a central longitudinal channel 23 that is open toward an edge 24 of the insert head 13 ( Figure 5).
  • the longitudinal channel 23 serves to accommodate the endoscope 11 and other instruments that are to be inserted into the oral cavity 5.
  • the longitudinal channel in the insert head 13 is not closed around its circumference, but is open toward the edge 24 of the insert head 13.
  • the open edge 24 is located opposite the palatal bar 20 in the embodiment of Figures 1 to 6.
  • a slot 25 in the insert head 13, which is connected to the longitudinal channel 23, is located in the embodiment of Figure 5 in the edge 24 opposite the palatal bar 20. In relation to the position of the patient, this is the mandibular side of the insert head 13.
  • the slot 25 runs obliquely to the longitudinal direction of the arcuate insert 3 at its lower end in the image plane.
  • the width of the slot 25 is selected such that an endoscope 11 can be inserted through this slot 25 into the longitudinal channel 23. This can be done outside the body or model 4.
  • the distal end 21 of the elongated insert 3 can then be inserted into the bite block opening 10.
  • the oblique course 25 of the slot 25 prevents the endoscope 11 from slipping out of the longitudinal channel 23.
  • Figures 4 and 5 show that a nozzle-shaped connection 26 is arranged on the insert head 13.
  • the lateral connection 26 is connected via internal channels to the two parallel jet channels 22, which carry air for jet ventilation to the distal end 21 of the curved section 17.
  • the insert head 13 has a head region 27 with a larger cross-section, in which the slot 25 is located.
  • This larger head region 27 adjoins a head region 28 with a smaller diameter.
  • the smaller head region 28 has an outer contour that is adapted to the inner contour of the bite block opening 10.
  • the narrower head region 28 has lateral concave constrictions that are adapted to the convex constrictions in the bite block opening 10.
  • the larger head region 27 limits the insertion depth of the elongated insert 3 by coming into contact with the front side 6 of the bite block 2 ( Figures 1 and 2).
  • FIG. 1 to 6 further shows that buccal cheek elements 29, 30, which serve as tongue retractors, are formed on the arch section 17.
  • These buccal cheek elements 29, 30 are web-shaped and extend at a distance from the palatal bar 20. Thus, they define a working channel 31 between them, through which, for example, the endoscope 11 shown in Figure 2 is guided.
  • the buccal cheek elements 29, 30 can also fulfil the function of the tongue depressor if there are openings 32, 33 in the cheek elements 29, 30.
  • the openings 32, 33 extend almost over the entire length of the cheek elements 29, 30, which in this case
  • the distal and proximal ends of the bar-shaped cheek elements 29, 30 are arranged on the one hand on the insert head 13, specifically on the narrower head region 28 and are supported distally by an angled portion located adjacent to the distal end on the underside of the palatal bar 20.
  • the angled ends of the bar-shaped cheek elements 29, 30 extend in the direction of the jet channels 22 located to the sides of the palatal bar 20.
  • the arch section therefore has a substantially U-shaped cross-section in the length region of the cheek elements 28, 29, which is open mandibularly and, through the openings 32, 33, is also predominantly open buccally.
  • the curved section 17, which is U-shaped in cross section, has a working channel 31 which is sufficiently large to accommodate all the elements required for endoscopy.
  • Oxygen channels are also integrated into the bite block. They serve to maximize oxygen enrichment by radiating toward the larynx. However, the resulting pressure is not sufficient to periodically fill (ventilate) the lungs. This requires targeted blowing through the glottis, building up a ventilation pressure in the range of more than 10 mbar.
  • respiratory support or ventilation of the patient can be provided via the integrated jet channels, whereby the distal opening of the jet channels 22 is always directed towards the glottis or the trachea.
  • the bite block arrangement according to the invention preferably comprises a set of inserts 3 which have a different shape, so that it is always ensured that the distal end of the jet channels 22 is aligned with the The trachea or glottis is directed.
  • Figures 7 to 11 show various exemplary embodiments, whereby the previously introduced reference numerals continue to be used uniformly for components with essentially the same function.
  • Figure 7 shows a bite block assembly 1 with a bite block 2, as described above, in combination with an elongated insert 3.
  • the elongated insert 3 is mounted in the bite block 2. It has a curved section 17 with lateral jet channels 22.
  • Figure 8 shows the insert of Figure 7 again in a side view.
  • the insert 3 has an insert head 13 with the mandibularly arranged slot 25 in the insert head 13 described above. In contrast to the embodiment of Figures 1 to 6, however, no buccal cheek elements 29, 30 are present.
  • the insert 3 has a tongue depressor 34.
  • the tongue depressor 34 is designed in two parts, so that an endoscope 11 can still be inserted into the working channel 31 via the mandibularly arranged slot 25 in the insert head 13 before the elongated insert is inserted into the bite block 2. If the tongue depressor 34 forms a closed surface, similar to the palatal bar 20, the slot 25 would have to be arranged buccally, which is also possible within the scope of the invention.
  • FIG. 10 The embodiments of Figures 10 and 11 correspond essentially to those of Figures 1 to 6.
  • the elongated insert 3 has a distal end 21 which is arranged at a slightly different angle than the distal end 21 in the embodiment of Figure 11.
  • the difference may be due to the fact that the insert 3 according to Figure 10 is used for bronchoscopy, while the insert of Figure 3 is used for Gastroscopy is used.
  • the use of a suitable insert 3 should ensure that, in combination with a uniform bite block 2, two different endoscopy procedures can be performed and that sufficient airflow or oxygen can always be precisely directed to the glottis.
  • the illustrated components are preferably made of plastic and are intended for single use.
  • the material composition can change gradually, continuously, or discontinuously along the length of the arched section 17.
  • the arched section 17 be in close contact with the patient's body, i.e., with the palate, so that body heat is transferred to the bite block assembly.
  • the body heat can contribute to increasing the elasticity of the arched section 17, thereby facilitating adaptation to the patient's anatomy, so that the medical examination or treatment can be carried out even more gently.
  • FIG. 12 shows an elongated insert 3 which, with regard to the design of the tongue depressor, is similar to that of Figure 9.
  • the distal ends of the tongue depressor are not connected to the palate protector.
  • the tongue depressor 34 also serves as a suction outlet for liquids.
  • the two suction channels 35, 36 extend in the longitudinal direction of the cheek elements 29, 30 and are open distally. Proximally, i.e., in the insert head 13, the two suction channels 35, 36 are connected to one another via a connecting channel.
  • the connecting channel 37 is connected to a suction nozzle
  • the distal end of the palate protector i.e. the arched section 17, is intended to convey oxygen or respiratory air towards the trachea, whereby there is a risk that fluids from the oral cavity are entrained.
  • the tongue-side suction described above can be provided.

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  • Radiology & Medical Imaging (AREA)
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Abstract

L'invention concerne un ensemble ouvre-bouche (1) pour procédures endoscopiques, l'ensemble ouvre-bouche comprenant les éléments suivants : a) un ouvre-bouche (2) comprenant une face avant (6) opposée à la cavité buccale (5) d'un patient, une face arrière (7) faisant face à la cavité buccale, et des surfaces faciales masticatoires supérieure et inférieure (8, 9), une ouverture d'ouvre-bouche (10) s'étendant, de la face avant à la face arrière, à travers l'ouvre-bouche et étant conçue pour recevoir un insert s'étendant longitudinalement ; b) l'insert s'étendant longitudinalement (3) présentant à son extrémité proximale (12) une tête d'insertion (13), qui peut être insérée par serrage dans l'ouverture d'ouvre-bouche, et une partie arquée (17), qui est adjacente à la tête d'insertion et qui est arrondie de manière atraumatique afin de protéger le palais, la partie arquée arrondie possédant une extrémité distale orientée par rapport au tube d'air ; c) la partie arquée présentant le long de son extension longitudinale un élément de bande palatinale (20) pour protéger le palais et la paroi arrière (18) de la gorge, et présentant, sur le côté buccal de l'élément de bande palatinale, au moins un canal de jet (22), s'étendant de la tête d'insertion à l'extrémité distale (21), pour l'air respiratoire ; d) la tête d'insertion présentant un canal longitudinal central (23), le canal longitudinal étant ouvert au niveau d'une face de bord (24) de la tête d'insertion.
PCT/EP2024/081817 2023-11-14 2024-11-11 Ensemble ouvre-bouche Pending WO2025103926A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202023106688.7 2023-11-14
DE202023106688.7U DE202023106688U1 (de) 2023-11-14 2023-11-14 Beißblockanordnung

Publications (1)

Publication Number Publication Date
WO2025103926A1 true WO2025103926A1 (fr) 2025-05-22

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ID=89809109

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/081817 Pending WO2025103926A1 (fr) 2023-11-14 2024-11-11 Ensemble ouvre-bouche

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DE (1) DE202023106688U1 (fr)
WO (1) WO2025103926A1 (fr)

Citations (10)

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US2127215A (en) * 1937-03-27 1938-08-16 James T Gwathmey Expansible respiratory airway
US4067331A (en) * 1976-07-23 1978-01-10 Berman Robert A Intubating pharyngeal airway
US4270531A (en) * 1978-12-11 1981-06-02 Blachly Paul H Oropharyngeal airway and bite block assembly and method of use for closed pulmonary ventilation
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US20110126840A1 (en) * 2009-03-23 2011-06-02 Daniel Ogilvie Adjustable Oral Airway Devices, And Adjustable Oral Airway Kits
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