Respiration monitor and x-ray triggering apparatus

Details Respiration monitor and x-ray triggering apparatus Respiration monitor and x-ray triggering apparatus

1981-04-06

1983-06-14

Kamm, William E.

Surgery

Truss

Pad

A61B 508

Patent

active

043877222

ABSTRACT:
Apparatus for generating a triggering signal to an x-ray machine in accordance with the respiration of a subject. A trigger signal is selectably generated to the x-ray machine just prior to occurrence of a selected respiration extrema. The value of the respiration signal at a sample occurring just after detection of the selected extrema is stored, and modified in accordance with the resolution of the system. The x-ray trigger signal is generated, if not otherwise inhibited, upon detection of the next occurrence of the modified value in the respiration wave form. Apparatus for generating signals indicative of respiration rate, respiration extrema, and heart rate is also disclosed. Apnea alarms are generated if a predetermined decrease in respiration rate is detected in successive periods in conjunction with a predetermined number of decelerating heart beats. An alarm also generated if the respiration rate and heart rate signals appear to indicate that the respiration and heart rates are equal for a predetermined number of periods, or if the respiration or heart rates stray outside of preset threshold values. Provisions are included for adaptive DC offset, and to eliminate electromagnetic interference. Amplitude, time domain, and slew rate discrimination against artifacts are also provided.

REFERENCES:
patent: 3344275 (1967-09-01), Marchal et al.
patent: 3433217 (1969-03-01), Rieke
patent: 3524058 (1970-08-01), Robertson et al.
patent: 3678296 (1972-07-01), Day
patent: 3871360 (1975-03-01), Van Horn et al.
patent: 3993995 (1976-11-01), Kaplan et al.
patent: 4036217 (1977-07-01), Ito et al.

Affiliated with

Also associated with

Rating

Respiration monitor and x-ray triggering apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Respiration monitor and x-ray triggering apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Respiration monitor and x-ray triggering apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-159331