摘要:
The present invention prevents the leakage of anesthetic gas, and enables in vivo observation of a specimen such as small laboratory animals over a long period of time. An in-vivo examination apparatus (1) comprises: a stage (2) for mounting a specimen (A) such as a laboratory animal; an anesthetizing chamber (3) which is disposed on the stage (2) for housing the specimen (A); and an anesthetic gas supply device (4) for supplying anesthetic gas (G) into the anesthetizing chamber (3); wherein a transparent window (3c) is provided on at least a part of the anesthetizing chamber (3).
摘要:
Breathing apparatuses which utilize active scrubbing in a closed loop system providing for scrubbing of air on exhalation, but inhalation to be from a clean air source without the air from that source passing back through an active filter immediately prior to inhalation. The systems and methods may also use endothermic reactions from repressurization of make-up air to cool the clean air source providing further comfort.
摘要:
Dry powder aerosol generators and related methods are provided. The dry powder aerosol generator includes a dispersion chamber having an internal cavity therein capable of receiving a dry powdered drug. The dispersion chamber includes a dosing port defined therein that is in fluid communication with the internal cavity. A dosing chamber for receiving a test subject is attachable to the dosing port, such that, when an airflow is created within the internal cavity, any dry powdered drug contained therein may fluidize and travel into the dosing chamber to provide opportunity for inhalation of the dry powdered drug by a test subject contained within the dosing chamber.
摘要:
A ventilation system is adapted to synchronize the delivery of both positive pressure ventilation and negative pressure ventilation to a patient. The ventilation system is structured to produce a positive pressure flow of gas which is delivered to the patient's airway and a negative pressure flow of gas which is converted into a negative extrathoracic pressure. The negative extrathoracic pressure is communicated to the patient in synchronism with the delivery of the positive pressure flow of gas.
摘要:
A respiratory support system for providing respiratory support to a patient comprising an oscillating pump. The oscillating pump pressurizes ambient air to a pressure suitable for delivery to the patient for respiratory support. The system further comprises a sensor and a microprocessor to control the oscillating pump in response to patient breath attempts.
摘要:
The invention relates to a method for providing a mini/microenvironment, separating a determined zone from a surrounding space while providing said zone a window access opening without loss of protection against hazardous agents either entering or leaving the protected zone. More particularly, an embodiment describes personal respiratory protection provided against hazardous airborne particulates and pathogens without the requirement of a solid barrier over the oral-nasal portion of the face. High breathing resistance, impaired voice communication, thermal stress, and uncomfortable straps holding a mask tightly over the mouth and nose are eliminated. Thereby, considerable increased comfort during long-term use is realized without compromising protection.
摘要:
An arrangement and method for detecting spontaneous respiratory effort of a patient receiving ventilatory support via a breathing circuit. A patient/breathing circuit interface is adapted to provide a closed connection between a breathing passage of the patient and the breathing circuit. A sensor is disposed at least partially in the breathing passage of the patient and arranged to sense flow of gas through the breathing passage. The arrangement and method individually or in addition to the airway pressure measurement promotes reliable and rapid detection of breathing efforts of a non-intubated patient to promote efficient augmentation of patient breathing.
摘要:
A cannula receives respiratory airflows and ambient airflows and a differential pressure transducer determine pressures differentials between the respiratory airflows and the ambient airflows. Another receives respiratory airflows and interface airflows and a differential pressure transducer determine pressures differentials between the respiratory airflows and the interface airflows. And another receives i) respiratory airflows from a subject and ii) interface airflows from an area near the cannula; and a differential pressure transducer determines pressure differentials between the respiratory airflows and the interface airflows. Corresponding respiratory monitoring methods also receive and determine the same.
摘要:
Normobaric infection control apparatus and method utilizing a portable, inflatable oxygen treatment type hood having an inlet port to which an inhalation gas conduit is connected and an outlet port to which an exhaled gas conduit is connected, and in which, in a first structural embodiment and method, provides normobaric infection control of a user's exhalations by means of exhaled gas filter means disposed in the exhaled gas conduit, and which, in a second structural embodiment and method, provides normobaric infection control of the inhalations of a user by means of inhalation gas filter means disposed in the inhalation gas conduit.
摘要:
A device for artificial respiration without the aid of masks, particularly for neonates and premature infants, comprising a frame that is provided with a first environment for accommodating the head of a patient and with a second environment that forms a resting surface for the back of the patient, the first and second environments being separated hermetically, and the first environment being sealed hermetically and being provided with at least one port for connection to a ventilation unit, the second environment further containing an abutment surface that can be arranged according to the length of the trunk of the patient.