Ultrasound heating for penile therapeutic temperature part 2
HEATING WITH ULTRASOUND WHILE CLAMPING
ABSTRACT
This test have been produced to further study heating with 1MHz 1.6w / cm^2 ultrasound, and to investigate if the application is efficient or not for producing therapeutic temperatures 39.7-43° C for clamped penis.
It have been previously proved that the particular intensity being enough to heat up flaccid stretched penis.
The heating window was chosen to be typical clamping set time of 10 minutes, and relying on former tests it was already supposed that one transducer alone with the intensity available is not powerful enough.
Test was executed with 2 transducers mounted parallel as a dual application 2x 1.6w /cm^2, A 2x4 cm^2).
As a summary the test failed to produce mean temperature at therapeutic temperatures.
METHODS
As a heating device is used dual setup of US transducers with 1.6 w/ cm^2 intensity. The area of the each transducer head being 4.0cm^2.
Urethral temperatures are measured with a plastic-coated thermocouple wiring. Two measuring channels are used (T1 and T2), measuring points separated by 6 cm distance.
The test procedure has been carried out while being at 90 % erection clamped with double cable clamp at the base.
RESULTS
Test results are documented at 10 sec intervals for T1 and T2.
T1 temperatures are measured penetrating deeper in to urethra, measurement being at first half portion the shaft. T2 is measured from the distal portion of the shaft.
Transducers separated by 7 cm moved in small circles at the the range of overlapping each other area just by a touch.
Keeping the balanced temperature on both channels the initial raise of 3-4 °C was quick but failed to produce higher temperatures. Only by sticking in a spot for seconds it was able to achieve momentary peaks to drop back down 2-3°C immediately once moved.
Struggled to top the threshold level of 39,7 °C . Temperatures clearly staying below excluding temporary peaks of 40 - 41 °C. Therapeutic level never really reached before the time out.
CONCLUSION
Reaching the therapeutic temperature for the clamped penile mass was not possible within the time restriction. The double setup of 2x 1 MHz application with 1.6 w / cm^2 intensity is not powerful enough source on heating the blood filled clamped penis yet only single transducer is effective enough to heat flaccid stretched shaft in 8-10 minutes.
DISCUSSION
Dual setup of US 1MHz with 1.6 w/ cm^2 can not be used effectively enough while clamped.
It remains under speculation if it is doable using external heat sources as a backup or with pre heater.
Further more under suspicions is if the electromagnetic fields of the transducers distort each other coils being that near each others. It should be tested if the opposite application with some clearance between the beams would be more effective way. Or using at it was put installing ceramic insulation between transducers.
Actually second test run was already about to be run with rice socks and pre heating while pumping but the setup failed and needs further preparations to be performed properly
Initial results indicated that after pumping with packed cylinder buried inside + 45-50°C rise socks using oven pre heated cylinder, the urethral temperature was no better than 35.6°C at the time clamp was on and the urethral sound was inserted.
The actual US heat cycle was interrupted.
Further tests are needed but at the moment it indicates that for clamped blood filled penile mass more intense US sources and / or effective extra heat sources are needed to reach therapeutic temperatures.
START 18/13.15 cm Jul 24th 18 (7.09/5.18") NOW 22.5/15.2 cm Fer 12th 20 (8.86/5.98") GOAL 8.5"/ 6"
When connective tissue is stretched within therapeutic temperatures ranging 102 to 110 F (38.9- 43.3 C), the amount of structural weakening produced by a given amount of tissue elongation varies inversely with the temperature. This is apparently related to the progressive increase in the viscous flow properties of the collagenous tissue when it is heated. (Warren et al (1971,1976)