Temperature monitoring for high frequency welding of soft biological tissues: A prospective study.

Background: Monitoring of temperature changes and accurately determining the moment of electrode removal during open heart operations is not well recognized.

Objective: We investigated the temperature fields distribution in the biological tissues affected by electrosurgery upon use of an infrared thermograph.

Methods: The dynamics of temperature distribution in the tissue was registered by the thermal imaging camera FLIR i7.

The IR-thermal imaging method for evaluation of the status of myocardial coronary vessels under the condition of artificial blood circulation.

Background: In this paper a method is proposed to evaluate the heart's coronary vessels' status based on the elimination of large coronary branches from IR-thermal image. This method makes it possible to determine nutrient cardiac blood circulation by calculation of the rate of heat spreading in small coronary vessels in the myocardium at hypothermia and hyperthermia under the conditions of artificial blood circulation.

Objective: The objective of the paper includes a theoretical substantiation of the proposed method for evaluation of the heart's coronary vessels' status and an experimental investigation of the efficiency of the method.

[The influence of the leg load and the support mobility under leg on the anticipatory postural adjustment].

Anticipatory postural adjustment is an essential part of equilibrium maintainance during standing in human. So changes in stance condition could affect both control of equilibrium and anticipatory adjustment. Anticipatory changes in the stabilogram of each leg were studied in standing subject during the early stage of quick right arm lifting while legs were on two separated supports.

[Influence of the movable support under one leg on human vertical posture during standing with asymmetric load on legs].

The posture in standing subjects was studied when the legs were placed on supports of different degrees of mobility, as well as, when a part of body weight was voluntary transferred to one leg. The aim of these experiments was to explore how the mobility of support under the feet affects the balance and how this influence could be changed by the load distribution between the legs during standing. When both legs were on rigid immovable supports, the posture maintaining was accomplished by control of center of pressure (CP) of both legs.

[Influence of Achilles tendon vibration on the human vertical posture during standing with asymmetrical leg loading].

The shift of center of pressure (CP) of body and CP of each leg was studied during Achilles tendon vibration of one or both legs while subject was standing with symmetrical load on the legs or with the load transferred on one leg. The CP shift of standing subject during unilateral Achilles tendon vibration depended both on the side of the tendon vibration and on the leg load. When standing with a load transferred on one leg the shift of common CP was larger than when the vibration was applied to the loaded leg.