Acta clinica Croatica, Vol. 53. No. 4., 2014.
Pregledni rad
The Use of Piezoelectric Effect to Improve Instrument Quality and Patient Safety in Laparoscopic Surgery
Željko Glavić
; Požega General County Hospital, Požega, Croatia; School of Medicine, Josip Juraj Strossmayer University, Osijek, Croatia
Goran Šantak
; Požega General County Hospital, Požega, Croatia; School of Medicine, Josip Juraj Strossmayer University, Osijek, Croatia
Marijan Cesarik
; Požega General County Hospital, Požega, Croatia
Ferdinand Slišurić
; Požega General County Hospital, Požega, Croatia
Ile Raštegorac
; Požega General County Hospital, Požega, Croatia
Goran Zukanović
; Požega General County Hospital, Požega, Croatia
Sažetak
The piezoelectric properties of some natural crystals and polymers can also be used in surgery. For this purpose, a prototype of an endoscopic instrument was constructed with piezoelectric material attached to its working end with the aim of recognizing pulsating blood vessels during laparoscopic surgery. To test the properties of the new instrument in laboratory conditions, simulated blood circulation was used with the possibility of changing pressure and frequency. The instrument was tested in the pressure range of 40-180 mm Hg at constant frequency of 72/min and frequency range of 36-130 beats per minute at constant pressure of 120 mm Hg. Test results showed that the instrument with certainty recognized a pulsating “blood vessel” in the expected pressure ranges and at different blood pump frequencies. Given the piezoelectric material’s very small dimensions and flexible form, it can be installed at the working end of most standard laparoscopic instruments and thus significantly increase certainty in the recognition of arteries during surgery, which would reduce the possibility of their injury or accidental ligation.
Ključne riječi
Piezosurgery – methods; Laparoscopy – methods; Surgical instruments
Hrčak ID:
136741
URI
Datum izdavanja:
1.12.2014.
Posjeta: 1.265 *