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CN-122006043-A - Patient interface and headgear for a respiratory device

CN122006043ACN 122006043 ACN122006043 ACN 122006043ACN-122006043-A

Abstract

The present application relates to a patient interface and headgear for a respiratory device. A patient interface with a headgear, such as a nasal cannula. The interface has a soft face mount component with a nasal prong and a base portion and a harder material gas flow manifold component with an inlet and an outlet. The gas is conveyed into the manifold inlet and out through the outlet and into the base portion of the face mount. The outlet of the manifold part includes a groove that provides clearance between the base portion of the face mount and the manifold part adjacent the area in the person, thereby providing pressure relief on the nasal septum. The headgear has a strap. The portion of the headgear that contacts the facial region has a surface region for frictionally engaging the skin. The material in these regions may be in the form of a sleeve or coating or overmolding. The remainder of the strap has different material properties than the portion of the contact face area.

Inventors

  • K.P. O'Donnell
  • S - R - frame
  • KRAMER MARTIN PAUL FRIEDRICH
  • S J Babic
  • P.G. Hawkins
  • M.S. Assy

Assignees

  • 费雪派克医疗保健有限公司

Dates

Publication Date
20260512
Application Date
20140507
Priority Date
20130507

Claims (20)

  1. 1. A nasal cannula, the nasal cannula comprising: A face mounting part having a base portion and at least one elongate wing extending laterally from one side of the base, At least one nasal prong extending laterally from the base portion and being capable of fitting in at least one user's nostril, wherein the face-mounting feature comprises a pair of nasal prongs for fitting in each of the user's nostrils, the nasal prongs being designed to not seal around the patient's nostrils, and A headgear including a strap forming a portion of the headgear for helping to retain or stabilize the nasal cannula on the user, Wherein the strap or a section of strap to be positioned on or placed in contact with the user's face or a portion of the user's face comprises at least one surface area for frictionally engaging the user's face, the surface area having a relatively higher friction surface material than the remainder of the strap forming the headgear or a portion of the headgear.
  2. 2. The nasal cannula according to claim 1, wherein the strap or a section of the strap includes two symmetrical surface areas for frictionally engaging with two symmetrical portions on either side of the user's face.
  3. 3. A nasal cannula according to claim 1 or 2, wherein the remainder of the harness is arranged to extend as a non-facial contact harness or harness section which is to extend beyond the face or part of the face of the user.
  4. 4. A nasal cannula according to any one of claims 1-3, wherein a surface area for frictionally engaging the user's face or a portion of the user's face comprising a relatively high friction surface material helps to retain or stabilize the nasal cannula on the user's face.
  5. 5. The nasal cannula according to any one of claims 1-4, wherein the surface area includes a material applied to the ligament or a corresponding segment of the ligament.
  6. 6. A nasal cannula according to claim 5, wherein the material applied is in the form of a sleeve positioned around the ligament or corresponding segment of the ligament.
  7. 7. The nasal cannula according to claim 6, wherein the sleeve is configured to be removably coupled around the ligament or ligament segment.
  8. 8. A nasal cannula according to claim 6 or 7 wherein the strap or corresponding section of strap extends through a passage in the sleeve.
  9. 9. The nasal cannula according to claim 8, wherein the lace or a corresponding segment of the lace is adapted to be threaded through the passage.
  10. 10. A nasal cannula according to claim 5, wherein the material applied is in the form of a material coated on the ligament or a corresponding segment of the ligament.
  11. 11. A nasal cannula according to claim 5, wherein the material applied is over-molded onto the ligament or corresponding segment of the ligament.
  12. 12. A nasal cannula according to any of claims 5-11, wherein the material applied is smooth and comfortable for skin contact.
  13. 13. A nasal cannula according to any of claims 5-12, wherein the material used is a thermoplastic elastomer.
  14. 14. The nasal cannula according to any one of claims 1-13, wherein the surface area is a surface having a wider surface area at an end positioned more proximal to the nasal cannula than a surface area of an opposite end positioned further from the nasal cannula.
  15. 15. The nasal cannula according to claim 14, wherein the surface area tapers from a relatively large surface area to a relatively small surface area.
  16. 16. The nasal cannula of any of claims 1-15, wherein the strap or each segment of the strap comprising the surface area further comprises a component of the strap configured to releasably couple with the nasal cannula.
  17. 17. The nasal cannula according to any one of claims 1-16, wherein each portion of a user's face includes a user's cheek.
  18. 18. The nasal cannula according to any one of claims 1-17, wherein the nasal cannula is adapted to deliver a nasal high flow, optionally in the range of 10-50L/min.
  19. 19. A harness as part of a headgear for a patient interface, the harness comprising: a harness having a pair of main ends, each of the main ends being connected to the patient interface or to a component to be connected to the patient interface, and Intermediate each of the main ends is a pair of secondary ends releasably connected to one another to establish a continuous strap of an initial length between the main ends for helping to retain the patient interface on the patient, an Wherein each secondary end is adapted to be releasably connected with a corresponding end of a further strap section so as to establish a continuous strap having an extended strap length between the primary ends relative to the starting length.
  20. 20. A headgear for a patient interface, the headgear comprising: a harness that forms a portion of the headgear for helping to retain or stabilize the patient interface on the user, Wherein the strap or a section of strap to be positioned on or placed in contact with the user's face or a portion of the user's face comprises a surface area for frictionally engaging the user's face, the surface area having a relatively higher friction surface material than the remainder of the strap forming the headgear or a portion of the headgear.

Description

Patient interface and headgear for a respiratory device The present application is a divisional application of the application patent application 202210109783.1 entitled "patient interface and headgear for respiratory devices" filed on day 29, 1, 2022. Technical Field The present invention relates particularly, but not exclusively, to delivering humidified gases to a patient in need of respiratory assistance by a patient interface, such as a nasal cannula, and a headgear for supporting or retaining the patient interface, such as the nasal cannula, on a user. Background In the design of respiratory assistance systems, it is important to provide a patient interface and headgear that are comfortable for the user, easy to wear, and maintain their operative position as the user moves during use. Alternative patient interfaces and headgear systems are provided that allow a user to select the style or type of device to be used. This selection may be made based on comfort, or the patient interface being better suited to remain on the user for improved respiratory therapy delivery, or both. For example, alternative retention arrangements or settings may be provided by different headgear for different patient interfaces. Nasal cannulae may be used to deliver high flow therapies. In some cases, pediatric patients use high flow therapies. There is a gap in the market for high flow nasal cannulas (especially for age groups of 2 to 12 years) that are capable of delivering high flow and humidity and are comfortable enough to wear overnight and can be fastened on the face of young children. It is therefore an object of the present invention to provide a patient interface or headgear, or both, which is designed to achieve some or all of the above considerations, at least to some extent, or to at least provide the public with a useful choice. Disclosure of Invention The present invention relates generally to pediatric nasal cannulas. More particularly, certain features, aspects, and advantages of the present invention relate to such cannulas designed for high flow applications. In some configurations, low resistance to the flow cannula may be used to deliver transnasal high flow over a wide flow range (e.g., 10-50L/min), especially for children aged 2-12. Advantageously, pediatric cannulas may be used at home and in hospitals. In some such configurations, the pediatric cannula allows this wide flow range to be used at low delivery pressures. In some configurations, the pediatric cannula may be used in conjunction with one or more structures for securing the pediatric cannula to a patient. For example, in some such configurations, a pediatric cannula may be used in combination with one or more of a tie and adhesive patch assembly. In such a configuration, the tie and adhesive patch assembly may be used together or in an alternating fashion. In a first aspect, the invention may broadly be said to consist in a harness as part of a headgear for a patient interface, the harness comprising: a harness having a pair of main ends, each of the main ends being connected to a patient interface or a component to be connected to the patient interface, and Intermediate each of the primary ends is a pair of secondary ends releasably connected to one another to establish a continuous strap between the primary ends of the initial length, the continuous strap being used to assist in retaining the patient interface on the patient, and Wherein each secondary end is adapted to be releasably connected with a corresponding end of a further strap segment to provide a continuous strap between the primary ends having an extended strap length relative to the starting length. Preferably, each end of the further strap section comprises a connector coupled to the strap section and each secondary end of the strap comprises a connector coupled to the strap. Preferably, the connector of each strap section is configured to couple the connector of a corresponding secondary end of the strap. Preferably, the connector of each secondary end of the tie is configured to couple the connector of the other secondary end of the tie and the connector of at least one end of the further tie segment. Preferably, the connector of each of the ends of the further strap section or the connector of each of the secondary ends of the strap or both have or include a male or female part or both for receipt by and connection to a complementary male or female part of the other corresponding connector and a friction fit part for maintaining the connection between the corresponding connectors. Preferably, the connector comprises a male part for being received by a female part of the counterpart connector and a female part for receiving the male part of the counterpart connector. Preferably, the connector is capable of receiving and retaining a corresponding terminal end of an associated strap or associated further strap segment. Preferably, the connector is configured to retain the cor