METHODS AND APPARATUS FOR SUPPLYING CLEAN BREATHABLE GAS
First Claim
1. An apparatus for the delivery of treatment for a patient with asthma, particularly during sleep, comprising:
- a blower to generate a flow of breathable gas under pressure, with an inlet for receiving breathable gas to said blower,a patient interface to provide said flow of breathable gas to the respiratory system of a patient,a conduit between said interface and said blower to lead said flow of breathable gas to said interface,a flow meter to generate a flow signal representative of flow to the patient,a controller to control said blower'"'"'s generation of said flow of breathable gas based in part on said flow signal, anda cleaning device to clean said breathable gas to substantially prevent allergen particulates from reaching the patient.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention features methods and apparatus for the treatment of asthma patients. A controlled supply of breathable air delivered to a patient interface or mask (4) is controlled for patient comfort to maintain a steady pressure level in a range 2 to 4 cm H2O to accommodate patient respiration. The breathable air is cleaned by a high efficiency particulate arresting filter (10) to remove allergens from the air supply. The apparatus may be programmed to automatically detect asthma-related symptoms such as an asthma attack by analyzing the respiratory flow of the patient. In response to the detection of such an attack, the apparatus may provide an audible warning or if configured with a treatment delivery module (14A, 14B), the device may administer a therapeutically effective dose of a drug or substance, for example, a broncho-dilator, to alleviate the patient'"'"'s breathing difficulty. Preferred mask designs allow for proper CO2 washout to accommodate the low pressures supplied to the mask and prevent asphyxia.
35 Citations
27 Claims
-
1. An apparatus for the delivery of treatment for a patient with asthma, particularly during sleep, comprising:
-
a blower to generate a flow of breathable gas under pressure, with an inlet for receiving breathable gas to said blower, a patient interface to provide said flow of breathable gas to the respiratory system of a patient, a conduit between said interface and said blower to lead said flow of breathable gas to said interface, a flow meter to generate a flow signal representative of flow to the patient, a controller to control said blower'"'"'s generation of said flow of breathable gas based in part on said flow signal, and a cleaning device to clean said breathable gas to substantially prevent allergen particulates from reaching the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27-60. -60. (canceled)
Specification