초록 ▼

Intrapleural pressure of a newborn subject is measured by detecting relative movement between adjacently-proximate cranial bones. The preferred device for measuring such bone movements is a surface inductive plethysmographic transducer secured on the subject\s head across at least two adjacently-pro

Intrapleural pressure of a newborn subject is measured by detecting relative movement between adjacently-proximate cranial bones. The preferred device for measuring such bone movements is a surface inductive plethysmographic transducer secured on the subject\s head across at least two adjacently-proximate cranial bones. The output signal generated by the transducer may be calibrated to provide a measurement of actual intrapleural pressure by temporarily manually occluding the subject\s nose or, if intubal, the endotracheal tube, measuring the airway pressure during such occlusion as the makes an inspiratory effort, and adjusting the transducer output signal to equal the airway pressure measured with the nose occluded.

대표청구항 ▼

A method of non-invasively monitoring and detecting changes in intrapleural pressure of a newborn subject, comprising: mounting an external means for detecting movement across at least two adjacently-proximate cranial bones of the subject to detect relative movement between said bones; and generatin

A method of non-invasively monitoring and detecting changes in intrapleural pressure of a newborn subject, comprising: mounting an external means for detecting movement across at least two adjacently-proximate cranial bones of the subject to detect relative movement between said bones; and generating a signal indicative of changes in the relative positions of said cranial bones detected by said means, changes in said signal being indicative of changes in intrapleural pressure of the subject.