PIV Measurement of Fluid Flow Inside a Human Uterus Model for Cryoablation :: essays research papers

PIV MEASUREMENT OF FLUID FLOW INSIDE A HUMAN UTERUS MODEL FOR CRYOABLATION Xiaolong Luo1, Jim S.J. Chen1, Marla Wolfson2, Charles Philips2, Thomas Shaffer2 1Department of Mechanical Engineering, Temple University 2Temple University School of Medicine Theoretical †another method has been recommended that permits cryoablation to be accomplished on the whole internal surface of the endometrium by flowing freezing perfluorochemical (PFC) liquid inside the human uterus. To comprehend the PFC stream field inside the uterus during cryoablation, an uterus model was developed; a liquid conveyance framework including the liquid conveyance test was planned and worked to recreate the PFC stream during cryosurgery. With molecule picture velocimetry (PIV), the liquid stream inside the uterus was explored at room temperature to show a 2-D entire field speed form and vector plot. Catchphrases: PIV, cryoablation, PFC, endometrium I. Presentation Menorrhagia is therapeutically characterized as exorbitant seeping at menses, in length or sum. A regular reason for menorrhagia is uterine fibroid development. Customarily, hysterectomy is the fundamental treatment for menorrhagia. A few cryosurgery strategies, for example, limited cryoprobes [1] and expand removal [2] have been created as options in contrast to hysterectomy to treat the brokenness of the endometrium. Be that as it may, these are restricted strategies and now and then there is still multiplication of the endometrium. Another strategy is suggested that permits cryoablation to be accomplished on the whole inward surface of the endometrium utilizing a PFC liquid [3]. The goal of this task is to build up a productive treatment strategy for irregular uterine seeping by freezing the endometrium. It has been indicated that a temperature of â€30 C is required for wreck tissue rot [4]. The warmth move process during cryoablation was explored tentatively and numerically (1-D) with great understanding [5], in which a uniform liquid temperature limit condition was utilized in the 1-D limited contrast technique to decide the temperature history in the human uteri of eight patients. This expected the liquid stream inside the uterus is uniform, repeatable and controllable. During the trials it was discovered that the temperature distinction at the delta and outlet of the inclusion test changed from 10 ºC to 50 ºC. Conflicting liquid temperatures might be brought about by insufficient course of PFC fluid, i.e., distribution inside the uterus. The objective of this examination is to comprehend the stream field inside the uterus pit during cryoablation with the goal that the ideal stream field and uniform temperature field can be acquired, along these lines proposing an ideal inclusion test structure so least PFC fluid and medical procedure time is utilized.