摘要:
This invention discloses a chamber adapted for the administration of medication from a source of aerosolized drug, such as a metered dose inhaler (MDI) or nebulizer, comprising a conduit with an oval cross section, a mounting for the MDI at the rear, an annular one-way valve at the front in fluid communication with the inhalation airway of the patient that permits air to flow out of the chamber during an inhalation by the patient, but prevents exhaled air from entering the chamber, an exhaust valve in the front section that provides an effective seal during inhalation, and a solid state whistle, wherein the whistle is adapted to making a sound if the air pressure within the chamber is below a predefined threshold. The inventive chamber may be used to directly administer inhaled medication to the mouth of a patient, or it may be used with an inhalation mask.
摘要:
A breathing mask for use in administering inhalable medications to a patient in need of an inhaled drug is provided. The mask disclosed herein is particularly useful for use with very young children. The mask is made from a flexible molded plastic silicone or elastomeric material, and has an anthropometrically/anatomically/ergonomically contoured shape to provide a good seal, a comfortable fit, and minimal dead space within the mask. The airway is aligned with nose. There may be an orifice for use with a soother device to calm a child using the mask. Also provided is a visual flow indicator to provide an indication of the quality of the seal of the mask on the face.
摘要:
A microsurgical irrigation/aspiration system is provided, including a controller having a pump roller head, actuators for occluding fluid lines, a suction sensor, and means for mounting a pump cassette. The system cassette is suitable for mounting on the controller and has an opening with a pump segment passing along an arcuate wall of the opening. When the cassette is mounted on the console, the roller head is engaged in the cassette opening and compresses the pump segment against the arcuate wall. An infusion line passes through the cassette and is occludable by one of the actuators, and a vent line connected to the pump segment is occludable by a second actuator. A suction sensing port on the cassette couples with the suction sensor in the controller. In an alternate embodiment, a cassette is disclosed within which both vacuum and peristaltic pumping is possible. Latching may be accomplished by a plunger attached to the sensory port of the cassette.
摘要:
A microsurgical irrigation/aspiration system is provided, including a controller having a pump roller head, actuators for occluding fluid lines, a suction sensor, and means for mounting a pump cassette. The system cassette is suitable for mounting on the controller and has an opening with a pump segment passing along an arcuate wall of the opening. When the cassette is mounted on the console, the roller head is engaged in the cassette opening and compresses the pump segment against the arcuate wall. An infusion line passes through the cassette and is occludable by one of the actuators, and a vent line connected to the pump segment is occludable by a second actuator. A suction sensing port on the cassette couples with the suction sensor in the controller. In an alternate embodiment, a cassette is disclosed within which both vacuum and peristaltic pumping is possible. Latching may be accomplished by a plunger attached to the sensory port of the cassette.
摘要:
A receptacle is provided for a removable and replaceable tool of a reusable device. The receptacle has a receptacle body shaped to accommodate a portion of the tool. A passageway is provided at one end of the receptacle body and a receiving member is provided at the other end of the receptacle body. The receiving member is mounted for reciprocal movement with respect to the receptacle body. An exterior end portion of the receiving member is positioned outside the receptacle body for manipulation of the receiving member. An internal end portion is positioned within the receptacle body and is shaped to engage a portion of the tool. Also provided is a method for removing a removable and replaceable tool from a reusable device.