CN-121971768-A - Breathing assistance device and/or components thereof

Abstract

The present application relates to breathing assistance devices and/or components thereof. A breathing assistance apparatus has a housing with an engagement feature and an electrical component in the housing and a detachable component (171). The electrical component has a container (233). The removable component (171) has an electrical connector (178) that fits closely or tightly in the receptacle (233) of the electrical component to help maintain the removable component (171) connected to the electrical component. The detachable member has a tab (172) with an end portion (172 b) that is bendable relative to the rest of the detachable member. An engagement feature (174) is provided on the distal portion of the tab and engages the engagement feature of the housing to prevent disconnection of the detachable member from the housing without actuating the distal portion (172 a) of the detachable member to flex the tab.

Inventors

• A. Van Sharquk
• R.A. MILLER
• S.W. Kaffman
• E. M. Meisel
• A. E. Mackenzie
• O. M. Clark
• P. J. Dickinson
• S. C.M. sangsong
• H. N.A. Jacobi

Assignees

• 费雪派克医疗保健有限公司

Dates

Publication Date

20260505

Application Date

20191105

Priority Date

20181105

Claims (17)

1. 1. A breathing assistance apparatus comprising: A housing having a gas port configured to couple with a port of a liquid chamber, and A seal on the gas port for providing a pneumatic seal with the port of the liquid chamber, wherein the seal is a single seal comprising two seal elements, wherein each seal element comprises a pressure seal.
2. 2. A breathing assistance apparatus according to claim 1 wherein each sealing element comprises a radially outwardly located bulbous tip.
3. 3. A breathing assistance apparatus according to claim 2 wherein each sealing element comprises a narrowed abdominal section between said tip and the base of said seal.
4. 4. A breathing assistance apparatus according to any one of claims 1 to 3 wherein said sealing elements are annular sealing elements, wherein one of said sealing elements is closer to the end of the gas port than the other of said sealing elements, and wherein the diameter of the one of said sealing elements that is located closer to the end of the gas port is greater than the other of said sealing elements.
5. 5. A breathing assistance apparatus according to any one of claims 1 to 4 wherein said seal comprises a further sealing element at or near an end of said seal opposite to the end of said gas port.
6. 6. A breathing assistance apparatus according to claim 5 wherein said further sealing element comprises an outwardly tapering portion and a radially protruding flange at or near an end of said seal opposite the end of said gas port.
7. 7. A breathing assistance apparatus according to claim 5 or 6 wherein said further sealing element is configured to form a seal with a second component different to said liquid chamber.
8. 8. A breathing assistance apparatus according to claim 6 or claim 7 when dependent on claim 6 wherein said flange projects radially further outwardly than said pressure seal such that said flange is configured to connect with a second component having an inner diameter greater than a port of said liquid chamber.
9. 9. A breathing assistance apparatus according to claim 6, claim 7 when dependent on claim 6, or claim 8 wherein said flange is configured to connect with a component of a disinfection kit.
10. 10. A breathing assistance apparatus according to any one of claims 1 to 9 wherein the ports of said liquid chamber comprise inlet or outlet ports.
11. 11. A breathing assistance apparatus according to any one of claims 1 to 10 wherein said gas port comprises a recessed portion for receiving said seal.
12. 12. A breathing assistance apparatus according to any one of claims 1 to 11 wherein said housing comprises two gas ports and wherein one said seal is provided on each said gas port.
13. 13. A breathing assistance apparatus according to any one of claims 1 to 12 wherein said gas port is part of a removable component, wherein said breathing assistance apparatus comprises an electrical component in said housing, said electrical component comprising a socket, wherein said removable component comprises an electrical connector for receipt in said socket and a seal configured to engage on a portion of said socket.
14. 14. A breathing assistance apparatus according to claim 13 wherein said seal configured to engage on said portion of said socket comprises a pressure seal.
15. 15. A breathing assistance apparatus according to claim 13 or 14 wherein said seal configured to engage on said portion of said socket comprises one or more sealing elements.
16. 16. A breathing assistance apparatus according to any one of claims 13 to 15 wherein said seal configured to engage on said portion of said socket comprises an overmolded seal.
17. 17. A breathing assistance apparatus according to claim 16 wherein said electrical connector comprises a Printed Circuit Board (PCB) electrical connector, wherein said PCB electrical connector is partially housed in a cavity of said detachable component, and wherein said detachable component comprises a molded base member integrally molded with a seal configured to engage on said portion of said socket and covering a portion of said PCB electrical connector housed in said cavity.

Description

Breathing assistance device and/or components thereof The present application is a divisional application of the application patent application 201980072383.4 entitled "breathing assistance device and/or components thereof" filed on 5/11/2019. Technical Field The present invention relates to a breathing assistance apparatus and/or components thereof. Background Breathing assistance devices are used in various environments (such as hospitals, medical facilities, hospitalization or home environments) to deliver a flow of gas to a user or patient. Breathing assistance devices come in a variety of forms, such as stand-alone humidifier devices, continuous Positive Airway Pressure (CPAP) devices, high flow devices, or respirators. The self-contained humidifier device may deliver heated and humidified gases for various medical procedures, including respiratory therapy, laparoscopy, and the like. These devices may be configured to control temperature and/or humidity. The apparatus may also include a medical circuit including various components that may be used to deliver heated and/or humidified gases to and from a patient. For example, in some breathing circuits, patient inhaled gases are delivered from a heater-humidifier through an inhalation tube or conduit. As another example, a tube may deliver humidified gas (typically CO 2) into the abdominal cavity in the insufflation circuit. This can help prevent the patient's internal organs from drying out or "drying out" and can reduce the time required to recover from surgery. The heating wire may extend inside at least a portion of the tubing, thereby forming a circuit for preventing or at least reducing the likelihood of forming a substantial amount of condensate. The stand alone humidifier apparatus typically includes a heating base and a humidification liquid chamber. The heating base may include a heating plate. The liquid chamber may be configured to hold a volume of liquid, such as water. The heating plate may be configured to heat a volume of liquid contained within the liquid chamber to produce a vapor. The liquid chamber may be removable from the heated base to allow the liquid chamber to be more easily sterilized or disposed of, or to be refilled with liquid. The body of the liquid chamber may be formed of a non-conductive glass or plastic material, but the liquid chamber may also include a conductive member. For example, the liquid chamber may include a high thermal conductivity base (e.g., an aluminum base) in contact with or associated with a heating plate on the heating base. The heating base may also include electronic controls, such as a master controller. In response to a user-set humidity or temperature value entered via the user interface and other inputs, the master controller determines when (or at what level) to energize the heating plate to heat the liquid within the liquid chamber. The stand alone humidifier apparatus may comprise a gas supply for delivering gas to the liquid chamber. In some configurations, the gas supply may include a respirator, blower, or any other suitable source of pressurized gas suitable for breathing or use in a medical procedure. The stand alone humidifier device may be used with respiratory therapy, positive pressure devices, non-invasive ventilation, surgical procedures including, but not limited to, laparoscopy, and the like. Desirably, the humidifier apparatus may be adapted to supply moisture or vapour to the gas supply. The humidifier device may be used with a continuously variable or bi-level PAP system or other form of respiratory therapy. In some configurations, the humidifier device may be integrated into a system that delivers any of this type of therapy. An exemplary stand-alone humidifier device is described in WO 2015/038013. The CPAP device is a gas supply means, optionally a gas humidification device. The device is operable to provide respiratory assistance to a patient or user in need of a positive pressure (humidified or otherwise) gas supply for the treatment of a condition such as Obstructive Sleep Apnea (OSA), snoring or Chronic Obstructive Pulmonary Disease (COPD). CPAP devices typically include a humidified fluid chamber to form a combined auxiliary breathing unit and humidifier. When used with a humidifier, CPAP apparatus typically has a configuration in which gas at a desired pressure is delivered from a secondary respiratory unit or blower unit to a liquid chamber downstream of the blower. As the gas passes through the liquid chamber, the liquid vapor (e.g., water vapor) saturates the gas. A flexible tubular gas conduit delivers gas to a user or patient downstream of the humidifier chamber. An exemplary CPAP device is described in WO 2011/056080. High flow devices may be used to deliver high gas flow or high flow therapies to a patient to assist in breathing and/or to treat respiratory disorders including Chronic Obstructive Pulmonary Disease (COPD). The high flow device comprises a gas sup