| 摘要 |
<p>Apparatus for monitoring the respiration of subjects, particularly hospital patients or infants, includes an inductive coil of insulated wire mounted on elasticated tape 12, the tape being sewn or threaded in channels 13 on a garment 14 as a single length in alternating rows, arranged so that in use the coil comprises a plurality of turns encircling the body, each turn being wound in the opposite sense to the preceding turn, and the garment may be opened completely without breaking any electrical connections. The coil may form an inductive element in a variable frequency oscillator, frequency changes in which can be processed electronically to provide continuous information of the respiratory parameters. In an embodiment particularly suitable for use with infants, the coil may form a radiative element in a battery-powered oscillator isolated from the remainder of the monitor circuit. The radiation is detected and transmitted to the circuit by an aerial which may be conveniently placed under a cot mattress. <IMAGE></p> |
