CN-122006050-A - Patient interface system

Abstract

A patient interface for respiratory therapy includes an interface body and a housing for receiving the interface body. The patient interface also includes a fixation member having a pair of support cushions, each of which is configured to engage a face of a user. In some configurations, the interface body may be a cannula body or a mask body. In some configurations, the housing may receive different interface bodies, and the interface bodies are interchangeable.

Inventors

• L.T. Stanley
• B. M. Howorth
• M.P. Ronald
• S.R.R. Davis
• H. Pemalaju
• 50. G. Michelson
• O. E.J. McGrady
• A. R. Berkeley
• J. D. Mitch

Assignees

• 费雪派克医疗保健有限公司

Dates

Publication Date

20260512

Application Date

20210302

Priority Date

20200303

Claims (18)

1. 1. A patient interface assembly (3000,4000), comprising: a first interface body; a second interface body; a housing configured for removable coupling with the first interface body or the second interface body, the housing comprising a pair of tube engagement portions, each of the pair of tube engagement portions at a lateral entry point on opposite ends of the housing, and A pair of mouthpiece, each of the mouthpiece being coupled to one of the pair of tube engagement portions and, when detachably coupled to the housing, allowing gas to and from a user to flow through the first or second mouthpiece body, Wherein the first interface body and the second interface body are interchangeable such that, in a first configuration, the first interface body is coupled to the housing and, in a second configuration, the second interface body is coupled to the housing, Wherein each of the first and second interface bodies includes a manifold configured to be at least partially received by the housing when the first or second interface body is detachably coupled thereto, the manifold including a first opening and a second opening that communicate with the interface tube when the first or second interface body is detachably coupled thereto, and wherein the positions of the first and second openings define a lateral entry point for gas flowing into each of the first and second interface bodies and gas flowing out of each of the first and second interface bodies.
2. 2. The patient interface assembly of claim 1, wherein the first opening and the second opening are in fluid communication with each other via the manifold.
3. 3. The patient interface assembly according to claim 1 or 2, wherein a first interface tube of the pair of interface tubes comprises an inspiratory conduit and a second interface tube of the pair of interface tubes comprises an expiratory conduit.
4. 4. The patient interface assembly of any one of the preceding claims, wherein the first opening and the second opening are on opposite sides of the manifold.
5. 5. The patient interface assembly according to any one of the preceding claims, wherein the first interface body is a cannula body and the second interface body is a mask body.
6. 6. The patient interface assembly of any one of the preceding claims, wherein the first interface body is a first size and the second interface body is a second size, wherein the first size is different from the second size.
7. 7. The patient interface assembly of any one of the preceding claims, wherein each of the first interface body and the second interface body is configured to form a seal with a face of a user.
8. 8. A patient interface assembly according to any one of the preceding claims, wherein the upper and lower edges of the housing are symmetrical.
9. 9. The patient interface assembly according to any one of the preceding claims, wherein the manifold comprises a housing coupling portion configured to be received within the housing when the first interface body or the second interface body is detachably coupled to the housing.
10. 10. The patient interface assembly according to claim 9, wherein the manifold further comprises a raised portion adjacent to the housing coupling portion, wherein the raised portion is configured to inhibit rotation of the manifold about the housing when the first interface body or the second interface body is detachably coupled to the housing.
11. 11. A patient interface assembly according to claim 9 or 10, wherein the housing coupling portion and the manifold are configured for insertion into and receipt by the housing and form an airtight seal with the housing.
12. 12. The patient interface assembly according to any one of claims 9 to 11, wherein the housing coupling portion comprises a trapezoidal shape defined between a first patient-facing side and an opposite second side of the housing coupling portion, and the housing comprises a shape complementary to the trapezoidal shape of the housing coupling portion.
13. 13. The patient interface assembly of any one of the preceding claims, wherein the manifold includes a ridge at each of the first and second openings, the ridge configured to form an airtight seal with the housing.
14. 14. The patient interface assembly of claim 13, the ridge being an annular ridge.
15. 15. A patient interface assembly according to any one of the preceding claims, wherein the manifold includes a visual indicator for indicating proper positioning and proper alignment with the housing.
16. 16. A patient interface assembly according to claim 15 when dependent on claim 13 or 14, wherein the visual indicator comprises a coloured ring on or around a ridge of the manifold.
17. 17. A patient interface assembly according to any one of the preceding claims, further comprising a securing member coupled to the housing, the securing member comprising a support cushion for attachment to a user's face or headgear.
18. 18. The patient interface assembly according to any one of the preceding claims, further comprising a midline fixation member coupleable to the housing at a first end and having a support cushion at a second end, wherein the support cushion is attachable to a user's face or headgear.

Description

Patient interface system The present application is a divisional application with application number 2021800187317, the application number 2021, 3/2, and the name "patient interface system". Technical Field The present disclosure relates generally to components of medical systems for delivering gas to and/or from a patient. In one particular aspect, the present disclosure relates to a patient interface forming part of a respiratory system. Background In assisted breathing, breathing gas is supplied to a patient through a patient interface via one or more flexible breathing tubes. The patient interface may be a nasal cannula, nasal mask, full face mask or oronasal mask, endotracheal tube or other known type of interface. The exhaled gas from the patient may be directed through a similar breathing tube to other devices (valves, ventilators, pressure devices, etc.) or vented to the patient's surroundings. In medical applications, such as assisted breathing, the patient inhaled gas is preferably delivered near body temperature (typically between 33 ℃ and 37 ℃) and high relative humidity (typically near saturation). In other medical applications, such as Continuous Positive Airway Pressure (CPAP) systems or positive airway pressure systems that provide positive pressure breathing gas to patients suffering from Obstructive Sleep Apnea (OSA), these breathing gases may be heated and/or humidified to different levels to improve user comfort or supplied without heating or humidification. In this specification, reference is made to patent specifications, other external documents, or other sources of information, which are generally intended to provide a context for discussing the features of the disclosure. Unless explicitly stated otherwise, references to such external documents should not be construed as an admission that such documents, or such sources of information, are prior art in any jurisdiction or form part of the common general knowledge in the art. Other aspects and advantages of the present disclosure will become apparent from the following description, given by way of example only. Disclosure of Invention It would be advantageous to provide a system for gas delivery therapy with interchangeable patient interfaces, such as nasal cannula, nasal mask, or oral nasal mask. Such alternative or improved systems may further assist in improved compliance and flexibility of the gas delivery therapy. An aspect of the present disclosure relates to a patient interface assembly including a first interface body, a second interface body, and a housing configured to detachably couple with the first interface body or the second interface body. The first interface body and the second interface body are interchangeable such that in a first configuration, the first interface body is coupled to the housing and in a second configuration, the second interface body is coupled to the housing. In some configurations, the first interface body is a cannula body. In some configurations, the cannula body includes one or more prongs. In some configurations, the one or more prongs are configured to be inserted into the nostrils of the user and form a seal. In some configurations, the second interface body is a mask body. In some configurations, the second interface body is a nasal mask. In some configurations, the second interface body is an oronasal mask. In some configurations, the mask defines a breathing chamber and has a user contact surface configured to contact a user's face and to surround at least the nostrils of the user. In some configurations, the housing includes an upper edge and a lower edge. In some configurations, the upper and lower edges of the housing are symmetrical. In some configurations, the lower edge of the housing is curved inwardly toward the housing. In some configurations, each of the first interface body and the second interface body includes a manifold, wherein the manifold is configured to be at least partially received by the housing when the first interface body or the second interface body is detachably coupled to the housing. In some configurations, the manifold includes a housing coupling portion configured to be received within the housing when the first interface body or the second interface body is detachably coupled to the housing. In some configurations, the manifold further comprises a raised portion adjacent to the housing coupling portion, wherein the raised portion is configured to inhibit rotation of the manifold about the housing when the first interface body or the second interface body is detachably coupled to the housing. In some configurations, the housing and/or the manifold includes a feedback mechanism to provide visual or audible feedback when the first interface body or the second interface body is detachably coupled to the housing. In some configurations, the patient interface assembly further includes one or more interface tubes. In some configurations, the housing includes one