The Use of a Pneumatic Zero Correction System and a Storage Oscilloscope with the Body Plethysmograph

2015 ◽  
pp. 61-63
Author(s):  
W. T. Suermondt
Keyword(s):  
The Body ◽  
Storage Oscilloscope ◽  
Correction System ◽  
Body Plethysmograph

A VALVE FOR RESPIRATORY STUDIES IN INFANTS

PEDIATRICS ◽  
1961 ◽  
Vol 27 (4) ◽  
pp. 645-647
Author(s):  
Richard J. Golinko ◽  
Abraham M. Rudolph
Keyword(s):  
Dead Space ◽  
Newborn Infants ◽  
Dilution Effect ◽  
Face Mask ◽  
The Body ◽  
Large Head ◽  
The Face ◽  
Residual Capacity ◽  
Respiratory Valve ◽  
Body Plethysmograph

PULMONARY function studies in small infants have been limited in the past by failure to develop practical methods for collecting expired gas samples. Adaption of a respiratory valve suitable for use in small subjects with small tidal volumes has been difficult and has led to the use of techniques with the body plethysmograph, contour face mask and large head chamber. The body plethysmograph offers only indirect data and requires considerable prepration before each study. In addition, it has the disadvantage that once the infant is placed in the plethysmograph chamber further manipulations of the infant are not possible. Systems using the contour face mask on head chamber involve a large dead space which may be quite significant when one considers the small volumes dealt with. In order to overcome the problem of large dead space, Cayler et al., similar to others, circulated air across the face of the contour mask. However, because of the dilution effect, differences in the composition of the inspired and expired gases were very small and therefore the chance for error in the calculations was increased. Berglund and Karlberg, and Geubelle et al., while studying functional residual capacity in infants, found that practically all quiet, healthy newborn infants breathe through the nose and can also tolerate the insertion of small tubes in their nostrils for varying periods. On the basis of these observations, a respiratory valve has been designed for insertion directly into the nostrils, permitting collection of total expired air. The valve, especially adapted for use in small infants, offers minimal resistance to respiration and has a dead space of 0.8 ml.

scholarly journals The Body Plethysmograph

1961 ◽  
Vol 37 (427) ◽  
pp. 257-258 ◽  
Author(s):  
G. Cumming
Keyword(s):  
The Body ◽  
Body Plethysmograph

A new electropneumatic flowmeter for the body plethysmograph.

1967 ◽  
Vol 23 (2) ◽  
pp. 276-278 ◽  
Author(s):  
N B Karatzas ◽  
G D Lee ◽  
F D Stott
Keyword(s):  
The Body ◽  
Body Plethysmograph

scholarly journals MECHANICAL EFFECTS OF THE HEART BEAT ON THE PRESSURE IN THE BODY PLETHYSMOGRAPH

Heart ◽  
1965 ◽  
Vol 27 (4) ◽  
pp. 527-539 ◽  
Author(s):  
R. J. Mills ◽  
P. Harris
Keyword(s):  
Heart Beat ◽  
The Body ◽  
Mechanical Effects ◽  
Body Plethysmograph

A bag-in-box system for maintaining gases at body temperature within the body plethysmograph

1964 ◽  
Vol 19 (3) ◽  
pp. 534-535 ◽  
Author(s):  
Marvin A. Sackner ◽  
Khalil A. Feisal ◽  
Arthur B. DuBois
Keyword(s):  
Body Temperature ◽  
Dead Space ◽  
The Body ◽  
Pulmonary Tissue ◽  
Tissue Volume ◽  
Pulmonary Tissue Volume ◽  
Body Plethysmograph

Measurements of the tissue volume and CO2 dissociation slope of the lungs by a plethysmographic technique require maintenance of the inspired gases at body temperature and saturation with water. For such a purpose, the design of a thermostatically controlled bag-in-box system which introduces negligible dead space between the mouth and bags is described. apparatus for measurement of pulmonary tissue volume; bag-in-box system with negligible dead space; thermostatically controlled bag-in-box system Submitted on August 26, 1963

Ventilation by high-frequency oscillation of thorax or at trachea in rats

1984 ◽  
Vol 56 (1) ◽  
pp. 155-160 ◽  
Author(s):  
A. Harf ◽  
C. Bertrand ◽  
H. K. Chang
Keyword(s):  
Partial Pressure ◽  
High Frequency ◽  
The Body ◽  
Whole Body ◽  
High Frequency Oscillation ◽  
Frequency Oscillation ◽  
Co2 Partial Pressure ◽  
Tracheal Cannula ◽  
O2 Partial Pressure ◽  
Body Plethysmograph

The efficiency of ventilation by high-frequency oscillation (HFO) applied to the thorax (external HFO) has been compared with that of HFO applied through a tracheal cannula (internal HFO) in a group of normal rats. Anesthetized, paralyzed, tracheotomized rats were placed in a whole-body plethysmograph. External HFO was achieved by varying the pressure surrounding the animal by means of a piston pump connected to the body plethysmograph; internal HFO was obtained in the same animals by connecting the pump to the tracheal cannula. Arterial CO2 and O2 partial pressures were measured in blood sampled from a carotid artery and were compared for external and internal HFO applied at 20 Hz with matched tidal volumes of 0.8, 1.4, 1.9, and 2.4 ml/kg. With increasing tidal volume, the mean arterial CO2 partial pressure decreased progressively from 68 to 30 Torr and was identical in the two modes of HFO; no difference was noted for the CO2 elimination or for the arterial O2 partial pressure. These results indicate that, in terms of gas exchange, external and internal HFO are equally efficient in normal rats.

scholarly journals Yoga Pose Detection and Correction System

2021 ◽  
Vol 9 (VII) ◽  
pp. 2771-2779
Author(s):  
Pooja Y U
Keyword(s):  
Assisted Living ◽  
The Body ◽  
Body Parts ◽  
Verbal Instructions ◽  
Pose Detection ◽  
Breathing Techniques ◽  
Key Points ◽  
Home Health Monitoring ◽  
Sports Arbitration ◽  
Correction System

Activity recognition is useful in many domains. These include biometrics, video -surveillance, human-computer interaction, assisted living, sports arbitration, in-home health monitoring, etc. The health status of an individual can be evaluated and predicted by monitoring and recognizing their activities. Yoga is one such domain that can be used to bring harmony to both body and mind with the help of asana, meditation, and various other breathing techniques. Nowadays in a fast-paced lifestyle, people do not have time to go to yoga classes. Hence, they prefer practicing yoga at home. However, there is a need for a tutor to assess their yoga poses. Hence, the system is presented where the user needs to do the yoga pose which is recognized in real-time video. Then, PoseNet is used to generate key points for the body parts. The identified pose is then compared with the target pose. Based on the comparison status generated by the function, verbal instructions are provided for the user to correct the yoga pose.

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