EFFECTS OF A MODIFIED VITRECTOMY PROBE IN SMALL-GAUGE VITRECTOMY An Experimental Study on the Flow and on the Traction Exerted on the Retina

Stanislao Rizzo, Gualtiero Fantoni, Giovanni De Santis, Jaw-Chyng Lormen Lue, Jonathan Ciampi, Michele Palla, Federica Genovesi Bert, Carmelo De Maria, Giovanni Vozzi, Rodrigo A. Brant Fernandes, Francesco Faraldi, Giuseppe Criscenti

Risultato della ricerca: Contributo in rivistaArticolo in rivista

1 Citazioni (Scopus)

Abstract

Purpose: Thorough this experimental study, the physic features of a modified 23-gauge vitrectomy probe were evaluated in vitro.Methods: A modified vitrectomy probe to increase vitreous outflow rate with a small-diameter probe, that also minimized tractional forces on the retina, was created and tested. The "new" probe was created by drilling an opening into the inner duct of a traditional 23-gauge probe with electrochemical or electrodischarge micromachining. Both vitreous outflow and tractional forces on the retina were examined using experimental models of vitreous surgery.Results: The additional opening allowed the modified probe to have a cutting rate of 5,000 cuts per minute, while sustaining an outflow approximately 45% higher than in conventional 23-gauge probes. The modified probe performed two cutting actions per cycle, not one, as in standard probes. Because tractional force is influenced by cutting rate, retinal forces were 2.2 times lower than those observed with traditional cutters.Conclusion: The modified probe could be useful in vitreoretinal surgery. It allows for faster vitreous removal while minimizing tractional forces on the retina. Moreover, any available probe can be modified by creating a hole in the inner duct.
Lingua originaleEnglish
pagine (da-a)1765-1774
Numero di pagine10
RivistaRetina
Volume37
Stato di pubblicazionePubblicato - 2017

Keywords

  • flow rate
  • holed vitrectomy probe
  • modified vitrectomy probe
  • surgical cutter
  • tractional force
  • vitrectomy probe
  • vitreoretinal surgery

Fingerprint Entra nei temi di ricerca di 'EFFECTS OF A MODIFIED VITRECTOMY PROBE IN SMALL-GAUGE VITRECTOMY An Experimental Study on the Flow and on the Traction Exerted on the Retina'. Insieme formano una fingerprint unica.

Cita questo