EP4605048A1 - Tube médical - Google Patents

Tube médical

Info

Publication number
EP4605048A1
EP4605048A1 EP23879320.2A EP23879320A EP4605048A1 EP 4605048 A1 EP4605048 A1 EP 4605048A1 EP 23879320 A EP23879320 A EP 23879320A EP 4605048 A1 EP4605048 A1 EP 4605048A1
Authority
EP
European Patent Office
Prior art keywords
tube
medical tube
medical
wall
support structure
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
EP23879320.2A
Other languages
German (de)
English (en)
Inventor
Suzanne Marie BELL
Michael John ANDRESEN
David VAN BOKHOVEN
Fadi Karim Moh'd MASHAL
Brent Ian Laing
David Johnathan Seymour Graham
Thomas James Edwards
Elmo Benson Stoks
Leo McKenzie RODGER
Jason Allan KLENNER
Kevin Blake Powell
Michael Paul Ronayne
Matthew Joseph LUCAS
Sean Alexander CRAIG
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.)
Fisher and Paykel Healthcare Ltd
Original Assignee
Fisher and Paykel Healthcare 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 Fisher and Paykel Healthcare Ltd filed Critical Fisher and Paykel Healthcare Ltd
Publication of EP4605048A1 publication Critical patent/EP4605048A1/fr
Pending legal-status Critical Current

Links

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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0875—Connecting 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. ventilators; 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • 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
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0833—T- or Y-type connectors, e.g. Y-piece
    • 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
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • 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
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • 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
    • A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
    • 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
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
    • A61M2205/584—Means for facilitating use, e.g. by people with impaired vision by visual feedback having a color code
    • 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
    • A61M2205/75—General characteristics of the apparatus with filters

Definitions

  • the present disclosure relates to a medical tube and, in particular, a medical tube for conveying a gas to a patient.
  • This disclosure also relates to a patient gas delivery system.
  • Various medical tubes are available for conveying a breathable gas to a patient.
  • some medical tubes provide a corrugated monolithic polymer wall to assist in delivering a breathable gas to a patient.
  • Other medical tubes provide a polymer membrane, supported by a reinforcing bead, to deliver a gas to a patient.
  • these traditional tubes are applied in a relatively generic manner and are not tailored to particular applications. This can lead to, for example, less desirable patient experiences.
  • the connector portions associated with medical tubes may be press fit, glued, fastened or overmoulded onto a tube wall. These assembly processes may be time consuming, adding to the cost of the tubes. Furthermore, some assemblies may leak and/or mechanically fail, given the nature of the connection between the connector and tube wall, which provides a number of issues.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; a support structure together with the barrier forming a tube wall, such that a lumen is provided; and a connector configured to connect to a device in order to allow gas flow within the lumen, wherein at least part of the connector is integrally formed with the support structure.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; and a support structure together with the barrier forming a tube wall, such that a lumen is provided for gas flow, wherein the tube wall comprises differences in mechanical properties therealong.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; and a support structure together with the barrier forming a tube wall, such that a lumen is provided for gas flow, wherein the barrier encapsulates the support structure.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube including: a barrier; and a support structure, the support structure being configured to interact with the barrier to assist in defining a tube wall, wherein the support structure includes one or more tube-wall shaping members connected to one or more connecting members to assist in resisting a Brazier effect.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; and a support structure together with the barrier forming a tube wall, such that a lumen is provided for gas flow, wherein the support structure comprises differences in mechanical properties therearound.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; and a support structure together with the barrier forming a tube wall, such that a lumen is provided for gas flow, wherein the support structure comprises a visual indicator to provide connection indicia.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; a support structure together with the barrier forming a tube wall, such that a lumen is provided; and a patient interface, wherein at least part of the tube wall is integrally formed with at least part of the patient interface.
  • the present disclosure provides a medical tube for conveying a gas to a patient, the medical tube comprising: a barrier; a support structure together with the barrier forming a tube wall, such that a lumen is provided; and an accessory, wherein at least part of the tube wall is integrally formed with the accessory.
  • the accessory may be a coupler.
  • the coupler may be a tube clip.
  • the coupler may include an engagement portion.
  • the engagement portion may be configured to engage with a patient interface.
  • connection indicia may assist in determining an orientation for connecting.
  • connection indicia may include a colour and/or shade.
  • the colour and/or shade may be different to surrounding colour and/or shades of the medical tube.
  • the support structure may provide one or more apertures transverse to the gas flow.
  • the tube wall may include an outer shape, wherein the outer shape is varied to provide differences in mechanical properties.
  • the outer shape has an associated cross section and the associated cross section may vary to provide differences in mechanical properties.
  • the outer shape may vary with respect to a longitudinal axis of the tube wall.
  • the outer shape may include a taper to provide differences in mechanical properties.
  • the taper may provide a portion of a first cross sectional area that is larger than another portion of a second cross sectional area.
  • the support structure may include one or more members.
  • the one or more members may vary to provide differences in mechanical properties.
  • the one or more members may include at least one member where its size varies over its length.
  • the one or more members may include one set of members that are located outboard, in a direction away from a central axis, compared to another set of members.
  • the one or more members may assist in defining the outer shape.
  • the one or more members may be integrally formed.
  • the one or more members may include a plurality of members that provide a skeletal- type structure.
  • the one or more members may include one or more tube-wall shaping members and/or one or more bridging members.
  • the one or more tube-wall shaping members may be annular.
  • An inner shaping surface of the one or more tube-wall shaping members may be different to an outer shaping surface of the one or more tube-wall shaping members.
  • the inner shaping surface may be substantially planar in a direction parallel to the longitudinal axis of the tube wall.
  • the one or more tube-wall shaping members may extend at an oblique angle to the longitudinal axis of the tube wall.
  • a thickness of the one or more tube-wall shaping members may vary along the tube wall.
  • a pitch of the one or more tube-wall shaping members may vary.
  • the pitch may vary with respect to the longitudinal axis of the tube wall.
  • the pitch may be measured at a unstretched state of the tube wall.
  • the one or more bridging members may connect the one or more tube-wall shaping members together.
  • a number of the one or more bridging members connecting to the one or more tube-wall shaping members may vary between regions of the tube wall.
  • the one or more bridging members may connect to the one or more tube-wall shaping members in: a first orientation; and a second orientation, wherein the first orientation is different to the second orientation.
  • the first orientation may be in a first area and the second orientation may be in a second area.
  • the first orientation may be approximately 90 degrees offset from the second orientation.
  • the one or more bridging members may include at least two bridging members providing a connection between parts of the one or more tube-wall shaping members.
  • the at least two bridging members may be positioned on opposite sides of the tube wall to each other.
  • the one or more bridging members may extend in a linear direction.
  • the one or more bridging members may extend parallel to the longitudinal axis of the tube wall.
  • a region of the support structure may favour bending about a side thereof where the one or more bridging members are omitted.
  • the region of the support structure may be constrained in bending about a further side thereof due to the one or more bridging members.
  • the support structure and barrier may define a second lumen for gas flow.
  • the second lumen may be adjacent, nested, coaxial, partitioned and/or colinear with the lumen.
  • the support structure may be resiliently biased to conform to a first curvature along a length of the tube wall.
  • the support structure may include a first region and a second region.
  • the first region may be configured with a first flexibility and the second region may be configured with a second flexibility.
  • the second flexibility may be greater than the first flexibility.
  • the first region and the second region may have different radial compliance.
  • the first region may be configured to bend in a first direction with respect to a first plane and the second region is configured to bend in a second direction with respect to a second plane.
  • the first direction and the second direction may be different.
  • the first region may be constrained from bending in the second direction and/or the second region may be constrained from bending in the first direction.
  • a structure of the first region may be different to a structure of the second region.
  • the barrier may encapsulate the support structure in a manner to mechanically position the support structure in place.
  • a portion of the barrier may be configured to rotate with respect to a portion of the support structure.
  • the barrier may be a breathable material.
  • a connector may be integrally formed with the support structure.
  • the connector may include a swivelling connector.
  • One end of the tube wall may include the swivelling connector.
  • the support structure may connect to a manifold.
  • the manifold may form part of a patient interface.
  • the support structure may comprise a connector at a second end that is configured to connect to a patient interface and/or medical device.
  • the connector at the second end may be integrally formed with the support structure.
  • the medical tube may further include a filter.
  • the tube wall may comprise two or more limbs.
  • the tube wall may comprise three or more limbs.
  • a size of one limb may be different to a size of another limb.
  • the size of the one limb or the another limb may relate to a diameter, cross-sectional area and/or length.
  • the diameter may be an internal diameter.
  • the diameter may relate to an internal diameter of the one limb and/or the another limb.
  • One limb may include a different connector to another limb.
  • the support structure and barrier may assist in defining at least three lumens.
  • the tube wall may be configured to collapse and/or expand from a first configuration to a second configuration.
  • the support structure assists in forming one or more frustoconical portions.
  • the one or more frustoconical portions may be configured to collapse and/or expand.
  • the one or more frustoconical portions may include two frustoconical portions, whereby the size of the two frustoconical portions may be different.
  • the barrier may have a biasing crease.
  • the biasing crease may promote deflection into or out of the lumen during tube bending or water absorption.
  • the one or more medical tubes may include a plurality of medical tubes.
  • the system may further include a patient interface connected to the one or more medical tubes.
  • the patient interface may be a nasal cannula, a mask and/or a insufflation tube.
  • the mask may be in the form of a continuous positive airway pressure (CPAP) mask.
  • CPAP continuous positive airway pressure
  • Figure 1 illustrates a perspective view of a medical tube for conveying a gas to a patient, according to an example of the present disclosure
  • Figure 2 illustrates a perspective view of a support structure of the medical tube shown in Figure 1 ;
  • Figure 3 illustrates a close up view 'A' of the support structure shown in Figure 2;
  • Figure 4 illustrates a close up view ' B' of the support structure shown in Figure 2;
  • Figure 5 illustrates an end view of the support structure shown in Figure 2;
  • Figure 6 illustrates a cross sectional side view of the support structure, taken across line C-C in Figure 5;
  • Figure 8 illustrates a partial cross sectional view of the medical tube shown in Figure 1;
  • Figure 9 illustrates a perspective cross sectional view of a further support structure, according to an example of the present disclosure.
  • Figure 12 illustrates an end view of a third multiple lumen arrangement, according to an example of the present disclosure
  • Figure 13 illustrates an end view of a fourth multiple lumen arrangement, according to an example of the present disclosure
  • Figure 14 illustrates a perspective view of bifurcated medical tube, according to an example of the present disclosure
  • Figure 15 illustrates a perspective view of a further bifurcated medical tube, according to an example of the present disclosure
  • Figure 16 illustrates a front view of a patient gas delivery system, according to an example of the present disclosure
  • Figure 17 illustrates a front view of a medial tube incorporating a filter, according to an example of present disclosure
  • Figure 18 illustrates a perspective view of the medical tube in Figure 17 connected to a patient interface, according to an example of the present disclosure
  • Figure 19 illustrates a perspective view of a medical tube, in a first configuration, according to an example of the present disclosure
  • Figure 23 illustrates a perspective view of a medical tube including a patient interface, according to an example of the present disclosure
  • Figure 25 illustrates a front view of a connecting part as shown in Figure 24
  • Figure 26 illustrates a perspective view of a medical tube, according to an example of the present disclosure
  • Figure 28 illustrates a cross sectional end view of the medical tube as shown in Figure 26;
  • Figure 29 illustrates a partial view of the cross sectional view shown in Figure 27, according to an example of the present disclosure
  • Figure 30 illustrates a further cross sectional end view of the medical tube as shown in Figure 26;
  • Figure 31 illustrates a perspective view of a further medical tube, according to an example of the present disclosure
  • Figure 32 illustrates a cross sectional view of the further medical tube shown in Figure 31 ;
  • Figure 33 illustrates a partial cross sectional view of a medical tube, according to an example of the present disclosure.
  • Figure 34 illustrates a partial cross sectional view of a further medical tube, according to an example of the present disclosure
  • Figure 35 illustrates a perspective cross sectional view of a further support structure, according to an example of the present disclosure.
  • Figure 36 illustrates a perspective view of a multi-limb medical tube, according to an example of the present disclosure.
  • the present disclosure relates to a medical tube that can be tailored to provide a range of mechanical properties, including at both a structural and material level, to achieve better patient outcomes.
  • the stiffness, weight and strength of the medical tube may be varied along the tube to provide a better, tailored product.
  • the supporting structure 1000a is formed from nylon but, as mentioned, a range of polymers could be implemented (including thermoset plastics or a preferable thermoplastic). Overall, the support structure 1000a is uniquely different to prior art forms and is not, for instance, bound by two dimensional die shapes. Desirable properties for the material from which the supporting structure 1000a is formed include an appropriate elastic or flexural modulus, toughness (including recovery from crush), softness or hardness (including softness for patient contacting portions), optical transmission/transparency (including for condensate, sputum, and other foreign matter within the lumen), biocompatibility, rheology (for processing), reusability (including suitability for sterilisation and other such characteristics) and other such properties. In addition, desirable properties of the supporting structure (and barrier 2000a) may include end-of-life considerations (eg, recyclability, disposable etc).
  • the outer shaping surface 1114a includes a curved area in a direction parallel with the longitudinal axis 12.
  • the inner and outer surfaces 1112a, 1114a are different in this embodiment. More specifically, a cross-section of each tube-wall shaping member 1110a, taken along the longitudinal axis 12, can be substantially D-shaped (as shown in Figure 8).
  • the dimensions and shape of the inner and outer shaper surface 1112a, 1114a may be varied depending on the application. For example, the thickness of the tube-wall shaping members 1110a may be increased or decreased depending on a desired structural strength.
  • the inner and outer surfaces 1112a, 1114a may provide a cross-section, for each tube-wall shaping member 1110a, which is triangular, square, trapezoidal, polygonal, circular, or any other shape.
  • the supporting structure 1000a provides a number of apertures 1116a.
  • the apertures 1116a are located: i) between portions of the tube-wall shaping member(s) 1110a; or ii) between separate tube-wall shaping members 1110a.
  • the apertures 1116a extend transversely to the gas flow through the lumen 110a. In this regard, the apertures 1116a extend in a direction towards the longitudinal axis 12.
  • the apertures 1116a extend peripherally about the support structure 1000a. In this embodiment, the apertures 1116a are partially annular. That is, the apertures 1116a are at least partially ring shaped.
  • the bridging member 1120a may extend in a direction that is at an oblique angle to the longitudinal axis 12.
  • the bridging members include a first end 1122a, which connects to a portion of one tube-wall shaping member 1110a.
  • a second end 1124a of the bridging members 1120a connects to a separate tube-wall shaping member 1110a but, in further embodiment, it may connect to a further portion of the same tube-wall shaping member 1110a.
  • this may occur when the tube-wall shaping member 1110a extends along an arcuate path or, for instance, the bridging members 1120a extend arcuately.
  • the members 1100a are differently arranged between a first region 1010a, a second region 1020a, a third region 1030a and a fourth region 1040a of the supporting structure 1000a.
  • the different arrangements and/or orientations of the members 1100a allow tailored mechanical properties to be achieved.
  • the fourth region 1040a (closer to a patient) may be more flexible compared to one or more of the other regions 1020a, 1030a, 1040a.
  • the stiffness of the tube 10a is greater further away from the connector 300a. This may be due to a variety of reasons, including the arrangement of bridging members 1120a (or the lack of bridging members 1120a closer to the patient).
  • the crush resistance, or radial compliance may also vary between regions of the supporting structure 1000a.
  • the stiffness, flexural strength, toughness and weight of the tube 10a may be varied and tailored to certain applications. This variation may, for example, be achieved by: i) changing the size, location and/or number of bridging members 1120a between the tube-wall shaping members 1110a; ii) changing the shape and/or size of the tube-wall shaping members 1110a; iii) changing the pitch of the tube-wall shaping members 1110a (the pitch being relative to the longitudinal axis 12 when the tube 10a is at a resting, unstretched state); and/or iv) changing the materials, in part or as a whole, of the bridging members 1120a and/or tube-wall shaping members 1110a.
  • a) Increasing thickness, density and/or axial alignment of bridging members 1120a may increase stiffness and flexural strength (dependent on the relative plane of bending). For instance, as the area moment of inertia of the bridging members 1120a increases due to a great thickness, the resulting stress in the bridging members 1120a will decrease, providing greater flexural strength. Similarly, bending stiffness will increase as the area moment of inertia of the bridging members 1120a increases. In addition, more bridging members 1120a helps distribute the force load associated with the tube 10a. Aligning the bridging members 1120a can also increase the stiffness / flexural strength in the aligned plane of the bridging members 1120a.
  • I ncreasing the thickness for the tube-wall shaping members 1110a may increase mechanical properties such as radial crush resistance and strength. For instance, in a similar manner to increasing the thickness of the bridging members 1120a, increasing the thickness of the tube-wall shaping members 1110a will increase the area moment of inertia of the tube-wall shaping members 1110a. This increases the strength and stiffness of the tube-wall shaping members 1110a and other mechanical properties such as crush resistance. Crush resistance may be considered the ability of the tube to resist applied force(s) which acts to reduce the cross-sectional area of the lumen. c) Increasing the pitch between tube-wall shaping members 1110a may increase flexibility of the tube 10a.
  • the first region 1010a includes two bridging members 1120a between each of tube-wall shaping members 1110a.
  • the two bridging members 1120a are located at equidistant positions from each other around the tube-wall shaping members 1110a.
  • the two bridging members 1120a are substantially located at 180° from each other around the tube-wall shaping members 1110a.
  • the location / orientation of the bridging members 1120a alternates between adjacent tube- wall shaping members 1110a. That is, the location of two bridging members 1120a is offset 90° between each tube-wall shaping member 1110a.
  • the bridging members 1120a are located on: i) a left/right side of one side of a tube-wall shaping member 1110a; and ii) a top/bottom side of another side of the tube-wall shaping member 1110a.
  • the tube-wall shaping members 1110a closest to the connector 200a are integrally formed with the connector 200a, either directly or via integrally formed bridging member(s) 1120a.
  • the diameter of the tube-wall shaping members 1110a is larger closer to connector 200a compared to the connector 300a.
  • the first region 1010a is configured to bend along plane xz and plane yz, and all planes rotationally in between the xz and yz planes.
  • the first region 1010a bends, for example, into and out of line with the z axis.
  • the first plane 1012a extends in the same direction as the xy plane shown in Figure 7.
  • the alternating nature of the bridging members 1120a in the first region 1010a also constrains the ability to twist or extend the first region 1010a along the longitudinal axis 12. This ability to resist twist or extension may also allow for a thinner barrier 2000a.
  • a thinner barrier 2000a may be desirable compared to a relatively thicker barrier 2000a as it may, for example, increase breathability (where a breathable material is used), increase clarity, increase flexibility, and/or minimise material usage.
  • each pair of tube-wall shaping members 1110a is limited to movement relative to each other by pivoting about the opposing bridging members 1120a.
  • Each pair of tube-wall shaping members 1110a may form a unit and, as these units are connected together, the overall properties of a region are provided based on the nature and connection of these units.
  • the second region 1020a includes two bridging members 1120a between each of the tube-wall shaping members 1110a.
  • the bridging members 1120a in the second region 1020a are arranged in a linear array. Accordingly, sets of bridging members 1120a extend in a linear formation along opposing sides of the tube-wall shaping members 1110a in the second region 1020a. This provides a difference in flexibility in the supporting structure 1000a between the lateral and vertical planes of the second region 1020a. That is, the second region 1020a can bend in line with the yz plane with further ease. However, the second region 1020a is limited from flexing in the xz plane (from left to right).
  • the third region 1030a includes two bridging members 1120a, between each of tube-wall shaping members 1110a, which are arranged in a linear array.
  • the linear arrays of bridging members 1120a in the third region 1030a are offset 90° compared to the linear arrays of bridging members 1120a in the second region 1020a. That is, the bridging members 1120a extend along the xz plane in the second region 1020a whilst they extend along the yz plane in the third region 1030a. In this regard, the bridging members 1120a in the third region 1030a extend along a different side of the support structure 1000a compared to the bridging members 1120a in the second region 1020a.
  • the third region 1030a is configured to favour pivoting/bending about either the second plane 1022a or a third plane 1032a on sides of the tube-wall shaping members 1110a where the bridging members 1120a are omitted.
  • third region 1030a is constrained from pivoting in the yz plane.
  • the third region 1030a is however configured to bend in line with the xz plane shown in Figure 7.
  • the support structure 1000a may be biased in a manner causing the tube to adapt to a curvature suited to the cheek/face of a patient (or another region of the patient). That is, the support structure 1000a has a neutral position which accommodates the curvature of a region of a patient.
  • the support structure may have regions that preferentially flex in a certain direction (whilst being restrained in one or more other directions).
  • the thickness of the barrier 2000a may also be varied to provide preferential flexing. For example, the thickness of the barrier 2000a may be thinner in certain areas, allowing further flexibility. In other areas, the barrier 2000a may be thicker to limit flexing.
  • the fourth region 1040a includes a tube-wall shaping member 1110a that spirals, in a circular, tapered manner, towards connector 300a.
  • the tube-wall shaping member(s) 1110a in the fourth region are therefore angled at an oblique angle to the longitudinal axis 12.
  • the fourth region 1040a does not have bridging members 1120a between parts of the tube-wall shaping member 1110a. Accordingly, the tube-wall shaping member 1110a is continuous in this region and is not formed from separate components.
  • the tube-wall shaping member 1110a extends along a helical path in the fourth region 1040a, being somewhat analogous to a (tapered helical) spring.
  • Figure 10 illustrates a tube 10c with a first lumen 110c adjacent a second lumen 110c';
  • Figure 13 illustrates a tube 10f with a lumen that has been partitioned into a first lumen 110f and a second lumen 110f .
  • Figure 36 illustrates a further multi-limb medical tube 10p.
  • the medical tube 10p includes a first connector 200p, a second connector 300p, a third connector 400p and a fourth connector 500p.
  • the connectors 200p, 300p, 400p, 500p are connectors that are configured to connect to other components.
  • the connectors 200p, 300p, 400p, 500p may be standard-type medical connectors.
  • the nature of the connector can differ between one or more of the connectors 200p, 300p, 400p, 500p. That is, one connector could be, for example, a twist-type connector whilst another connector could be a push-fit connector or swivelling connector.
  • the swivelling connector can pivot about an axis.
  • At least part of the connectors 200p, 300p, 400p may be integrally formed with the support structure 1000p.
  • part of it may be integrally formed with the support structure whilst another part is configured to swivel.
  • the support structure 1000p includes tube-wall shaping member(s) 111 Op with bridging member(s) 1120p therebetween.
  • the support structure 1000p forms a multi-limb structure to assist in defining multiple lumens.
  • the size and/or geometry of the tube-wall shaping member(s) 1110p may vary.
  • the size of the shaping member(s) 1110p may vary along each limb.
  • size may vary in, for example, diameter, cross-sectional area and/or length. This may assist in defining different size lumens.
  • the diameter of the lumens may define an internal diameter of the tube wall 100p.
  • the multi-limb medical tube 10p includes three lumens 110p, 110p', 11 Op".
  • One lumen 11 Op is in fluid communication with the first connector 200p.
  • the other lumens 11 Op', 11 Op" are respectively in fluid communication with the second connector 300p and third connector 400p.
  • the lumens 110p, 11 Op', 11 Op" are also in fluid communication with the fourth connector 500p.
  • the splitting / joining of the limbs of the medical tube 10p need not be located at the same point. For example, one limb may be split into two limbs and then one of those limbs may be further subdivided.
  • the branching / splitting of the limbs can be tailored to the medical requirements.
  • FIG. 16 illustrates a patient gas delivery system 3000h.
  • the system 3000h comprises a plurality of tube and adaptors.
  • each tube may comprise a tailored support structure.
  • tubes may be integrally moulded which provides fewer connection points from which respiratory gas may leak.
  • the system 3000h includes a patient interface 3100h.
  • the patient interface 3100h may comprise a laryngeal mask airway (LMA).
  • the patient interface 3100h may comprise an endotracheal tube (ET).
  • LMA laryngeal mask airway
  • ET endotracheal tube
  • the patient interface 3100h is connected to one of the multi-limb tubes 10g, 10h.
  • FIG. 19 illustrates a medical tube 10j.
  • the medical tube 10j includes a first connector 200j and a second connector 300j.
  • the connectors 200j, 300j form part of the support structure 1000j.
  • the support structure 10OOj comprises a plurality members 110Oj including tube-wall shaping members 1110j.
  • the tube wall-shaping members 1110j include a first size tube wallshaping member 110Oj and a second size tube wall-shaping member 110Oj.
  • Between the first and second size tube wall-shaping members 1110j are bridging members 1120j .
  • the bridging members 1120j are resiliently flexible.
  • the combination of the tube-wall shaping members 1110j and bridging members 1120j forms frustoconical portions.
  • the tube-wall shaping members 1110j are also connected with the assistance of the barrier 2000j.
  • the barrier 2000j is resiliently flexible, this allows the tube 10j to be collapsible/extendable.
  • the bridging members 1120j may be omitted with the barrier 2000j connecting the tube-wall shaping members 1110j together.
  • the resilient flexible nature of the barrier 2000j may be such that the tube 10j can be collapsed and expanded in a variety of ways to assist in patient therapies. For example, the tube 10j may be retracted and expanded based on the patient's position in a bed.
  • the integration of the patient interface 3100k with the tube-wall shaping members 1110k can assist in replacing an elbow structure and ball joint connection. That is, the tailoring of the barrier 2000k and support structure 1000k can provide adequate flexibility with the patient interface 3100k, which eliminates the need for, for instance, an elbow structure and ball joint connection. Furthermore, the integration of the support structure 1000k, barrier 2000k and patient interface 3100k reduces the potential for any uncontrolled leaks. This improves reliability.
  • the tube 10k may comprise a series of apertures/vents to maintain a controlled leak for bias flow in a NIV/CPAP system.
  • the tube receiving portion 3222I is substantially circular but it may be other shapes in other examples.
  • the tube receiving portion 3222I is configured to receive the patient interface tube.
  • the connecting part 3200I is integrally form with the support structure 10001 and/or the barrier 20001. This fixes the connecting part 32001 in place and prevents the connecting part 32001 from sliding along the tube 101. Furthermore, less individual parts are provided in the system, easing manufacturing, assembly and use. [0141]
  • Figure 26 illustrates a further medical tube 10m.
  • the medical tube 10m may provide a connection between a heated breathing tube and prongs (or a portion thereof).
  • the tube 10m could be (integrally) connected with one of connectors 3300b, 3300o, in the form of a manifold, whilst at its other end it could be connected to a heater breathing tube.
  • the prongs could also include prongs 3400o.
  • the medical tube 10m includes a tube wall 100m.
  • the tube wall 100m assists in defining a lumen 110m.
  • the tube wall 100m has an outer shape 120m. As shown further in Figure 29, the outer shape 120m is made up of the tube-wall shaping members 1100m and the outer surface 2200m of the barrier 2000m.
  • the tube wall 100m assists in defining a lumen 110m.
  • the medical tube 10m includes a first connector 200m and a second connector 300m.
  • the tube-wall shaping members 1100m of the support structure 1000m are connected to the first connector 200m and the second connector 300m.
  • the first connector 200m may be configured to connect to a heated breathing tube.
  • the second connector 300m may be configured to connect to a cannula manifold.
  • the support structure 1000m is similar to the support structures 1000b, 1000o, shown in Figures 9 and 35 respectively, by providing, amongst other things, a tapered structure etc.

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • External Artificial Organs (AREA)

Abstract

Tube médical pour transporter un gaz vers un patient, le tube médical comprenant : une barrière ; une structure de support formant conjointement avec la barrière une paroi de tube, de telle sorte qu'une lumière est formée ; et un connecteur conçu pour le raccordement à un dispositif afin de permettre un écoulement de gaz à l'intérieur de la lumière, au moins une partie du connecteur étant formée d'un seul tenant avec la structure de support.
EP23879320.2A 2022-10-21 2023-10-20 Tube médical Pending EP4605048A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263380475P 2022-10-21 2022-10-21
PCT/IB2023/060597 WO2024084445A1 (fr) 2022-10-21 2023-10-20 Tube médical

Publications (1)

Publication Number Publication Date
EP4605048A1 true EP4605048A1 (fr) 2025-08-27

Family

ID=90737186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23879320.2A Pending EP4605048A1 (fr) 2022-10-21 2023-10-20 Tube médical

Country Status (6)

Country Link
EP (1) EP4605048A1 (fr)
JP (1) JP2025534070A (fr)
CN (1) CN120091843A (fr)
MX (1) MX2025004627A (fr)
TW (1) TW202430236A (fr)
WO (1) WO2024084445A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007506B4 (de) * 2000-02-18 2006-02-02 Map Medizin-Technologie Gmbh Atemgasschlauchanordnung zur Zufuhr eines Atemgases
US20050165366A1 (en) * 2004-01-28 2005-07-28 Brustad John R. Medical tubing having variable characteristics and method of making same
US10034995B2 (en) * 2007-09-20 2018-07-31 Resmed Limited Retractable tube for CPAP
ES2736776T3 (es) * 2010-10-18 2020-01-07 Fisher & Paykel Healthcare Ltd Cánula nasal, conducto y sistema de sujeción
EP4039311B1 (fr) * 2011-03-15 2024-07-31 ResMed Pty Ltd Conduit de distribution d'air
EP3827864A1 (fr) * 2011-06-08 2021-06-02 ResMed Pty Ltd Conduit de distribution d'air
US20140277058A1 (en) * 2013-03-12 2014-09-18 Acclarent, Inc. Airway dilation shaft with staggered adjacent internal lumens
JP2020534895A (ja) * 2017-09-28 2020-12-03 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 膨張可能な導管及び当該膨張可能な導管を含むヘッドギア
JP7416732B2 (ja) * 2018-06-26 2024-01-17 レスメド・プロプライエタリー・リミテッド 患者インターフェースのためのヘッドギアチュービング
CN116096447B (zh) * 2020-06-30 2026-02-17 瑞思迈亚洲私人有限公司 可充气头带和患者接口
CN115120821A (zh) * 2021-03-26 2022-09-30 深圳迈瑞生物医疗电子股份有限公司 新生儿呼吸机及其压力发生器

Also Published As

Publication number Publication date
TW202430236A (zh) 2024-08-01
WO2024084445A1 (fr) 2024-04-25
JP2025534070A (ja) 2025-10-09
MX2025004627A (es) 2025-07-01
CN120091843A (zh) 2025-06-03

Similar Documents

Publication Publication Date Title
US20260108696A1 (en) Swivel elbow and connector assembly for patient interface systems
US8978648B2 (en) Air delivery conduit
AU2007222974B2 (en) Multi-sectioned conduit assembly
US6571794B1 (en) Multi-lumen hose for respirators
US7726309B2 (en) Flexible connector
CN104853796B (zh) 旋转流体联接件
CN107684652B (zh) 鼻插管、导管和固定系统
US8701668B2 (en) Nasal assembly
US8025058B2 (en) Variable CPAP respiratory interface
US8196584B2 (en) Endotracheal cuff and technique for using the same
JP6502862B2 (ja) 呼吸インターフェイス装置のマニホールドアセンブリ
US20120325219A1 (en) Patient interface device with tubing assembly
AU2020352295B2 (en) Medical tube
WO2024084445A1 (fr) Tube médical
CN103476449B (zh) 包胶模制的旋转联接组件
US20240100313A1 (en) Coupling arrangement for air delivery circuits
NZ728431B2 (en) Swivel Elbow and Connector Assembly for Patient Interface Systems

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250422

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)