HOW NEGATIVE IS THE PRESSURE USED IN THE SURGICAL WOUND TREATMENT WITH NEGATIVE PRESSURE THERAPY ?

  • B.M. CIUNTU “Grigore T. Popa” University of Medicine and Pharmacy Iasi
  • St.O. GEORGESCU “Grigore T. Popa” University of Medicine and Pharmacy Iasi
  • D.V. TIMOFTE “Grigore T. Popa” University of Medicine and Pharmacy Iasi
  • Doina AZOICAI “Grigore T. Popa” University of Medicine and Pharmacy Iasi
  • St.L. TOMA “Gh. Asachi” Technical University, Iasi

Abstract

The study aims to assess the significance of negative pressure therapy in the treatment of surgical wounds and using the ANSYS simulation software for fluid dynamics calculation will give us the possibility to determine the fluid flow dynamics inside the vacuum kit during its use. Material and methods: To predict the speed, pressure and temperature of the fluid inside a vacuum kit, we used numerical modeling, using the finite element method, of the gas fluid flow phenomenon. Results: The pressure of the liquid fluid is higher in the area of contact with the wound, compared to the pressure of the liquid fluid in the outlet area of the capillary tube, accentuating with increasing pressure applied to the end of the tube. 32% of the fluid pressure at the interface between the sponge and the wound. Conclusions: The rate of pressure transmission inside the sponge is variable favoring the appearance of ischemia areas on contact with the wound.

Author Biographies

B.M. CIUNTU, “Grigore T. Popa” University of Medicine and Pharmacy Iasi

Faculty of Medicine
Department of Surgery (I)

St.O. GEORGESCU, “Grigore T. Popa” University of Medicine and Pharmacy Iasi

Faculty of Medicine
Department of Surgery (I)

D.V. TIMOFTE, “Grigore T. Popa” University of Medicine and Pharmacy Iasi

Faculty of Medicine
Department of Surgery (I)

Doina AZOICAI, “Grigore T. Popa” University of Medicine and Pharmacy Iasi

Faculty of Medicine
Department of Preventive Medicine and Interdisciplinarity

St.L. TOMA, “Gh. Asachi” Technical University, Iasi

Faculty of Science and Materials Engineering

References

1. Maier D, Becker U, Kinzl L, et al. Physical basics of the vacuum sealing therapy. Zentralbl Chir 2000; 125(S1): 82.
2. Willy C, Augustin M, Zschocke I, et al. Side effects and risks of vacuum therapy - an overview. MMW Fortschr Med 2006; 148: 33-40.
3. Wackenfros A, Sjogren J, Algotsson L, et al. Effects of vacuum-assisted closure therapy on inguinal wound edge microvascular blood flow. Wound Repair Regen 2004; 12(6): 600-606.
4. Ciuntu BM, Vasiluta C, Negru R, et al. Negative pressure therapy in the surgical treatment of diabetic foot. Rev Chim (Bucharest) 2017; 68(7): 1648-1651.
5. Saxena V, Hwang CW, Huang S, et al. Vacuum-assisted closure: micro deformations of wounds and cell proliferation. Plast Reconstr Surg 2004; 114(5): 1086-1096.
6. Isago T, Nozaki M, Kikuchi Y, et al. Effects of different negative pressures in reduction of wounds in negative pressure dressing. J Dermatol 2003; 30(8): 596-601.
Published
2021-09-30