Abstract: A strap system is useable with an anesthesia/respiratory face mask having an axially extending gas port connector and a gasket member. The gas port connector has a first diameter, and the gasket member is engageable with and conformable to a face of a patient. The strap system includes a strap member having a first end portion, a second end portion and a middle portion, and a collar. The collar includes an axially extending portion having a second diameter. The strap system includes a strap having a first end portion, and a second end portion; the collar also includes a radially extending portion having at least a first and a second slot through which the first and second end portions, respectively of the strap can pass. The slots are sized for adjustably receiving and fixedly positioning the first and second end portions of the strap.

Abstract: An anesthesia delivery device can be coupled to a ventilation system. The device includes an inspiratory gas line having a machine end and a patient end. The machine end can be fluidly coupled to the ventilation system, and the patient end can be received within the naris of the patient. A face mask having a dome portion can cover the patient's nose without covering the patient's mouth and defines an inside air space between the patient's nose and the dome portion, and an outside air space exterior of the dome portion. A vent allows gas to pass between the inside and outside air spaces. An exhaust port can be fluidly coupled to the exhaust gas output. The exhaust port and vent can cooperatively exert a negative pressure on the outside air space for preventing inspiratory gas from entering the outside air space.

Abstract: A unilimb breathing circuit has a proximal end coupling member, a distal end coupling member, an expiratory tube extending between the proximal and distal end coupling members, and an inspiratory tube extending between the proximal and distal end coupling members. The expiratory tube is a corrugated expiratory tube that is expandable between a fully compressed rest position, and a fully expanded rest position, and has a plurality of intermediate rest positions. At the plurality of intermediate rest positions, the expiratory tube is capable of maintaining its rest length without the exertion of an external force. The inspiratory tube is a corrugated inspiratory tube having a length that is variable between a fully compressed rest position and a fully expanded rest position, and includes a plurality of intermediate rest positions between the fully expanded rest position and the fully compressed rest position.

Abstract: A strap system is useable with an anesthesia/respiratory face mask having an axially extending gas port connector and a gasket member. The gas port connector has a first diameter, and the gasket member is engageable with and conformable to a face of a patient. The strap system includes a strap member having a first end portion, a second end portion and a middle portion, and a collar. The collar includes an axially extending portion having a second diameter. The strap system includes a strap having a first end portion, and a second end portion; the collar also includes a radially extending portion having at least a first and a second slot through which the first and second end portions, respectively of the strap can pass. The slots are sized for adjustably receiving and fixedly positioning the first and second end portions of the strap.

Abstract: A unilimb breathing circuit has a proximal end coupling member, a distal end coupling member, an expiratory tube extending between the proximal and distal end coupling members, and an inspiratory tube extending between the proximal and distal end coupling members. The expiratory tube is a corrugated expiratory tube that is expandable between a fully compressed rest position, and a fully expanded rest position, and has a plurality of intermediate rest positions. At the plurality of intermediate rest positions, the expiratory tube is capable of maintaining its rest length without the exertion of an external force. The inspiratory tube is a corrugated inspiratory tube having a length that is variable between a fully compressed rest position and a fully expanded rest position, and includes a plurality of intermediate rest positions between the fully expanded rest position and the fully compressed rest position.

Abstract: In accordance with the present invention an anesthesia delivery device is disclosed for use on a patient having a mouth and a nose having a naris. The delivery device is capable of being coupled to a ventilation system having an inspiratory gas input for delivering gas to the patient and an exhaust gas output for delivering gas from a patient to the ventilation system. The anesthesia device includes an inspiratory gas line having a machine end and a patient end. The machine end is capable of being fluidly coupled to the inspiratory gas input of the ventilation system, and the patient end is configured for being received within the naris of the patient for delivering inspiratory gas to the naris of the patient. The device also includes a face mask having a dome portion sized to cover the patient's nose without covering the patient's mouth. The dome portion defines an inside air space between the patient's nose and the dome portion, and an outside air space exterior of the dome portion.