Evaluation of the capsular safety of a new hybrid phacoemulsification tip in a cadaver eye model

Shumway, Caleb; Ellis, Nathan; Heczko, Joshua; Jiang, Bill; Werner, Liliana; Mamalis, Nick

doi:10.1016/j.jcrs.2019.06.016

Cited by 5 publications

(14 citation statements)

References 12 publications

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“…They emphasized that the Intrepid Hybrid tip would decrease the PCR rate without reducing the phaco efficiency. 9 In our case series, while no patient in the Active Sentry handpiece and Hybrid phaco tip group experienced corneal decompression, surge-induced iris injury, or PCR, in the conventional handpiece and phaco tip group two patients had PCR and one patient had iris damage. However, the number of PCRs may be low due to the surgeon's experience.…”

Section: Discussionmentioning

confidence: 53%

“…[4][5][6][7][8] Furthermore, the Intrepid Hybrid tip is designed to minimize damage to the capsular bag and other tissues. 8,9 Herein, we aimed to evaluate the efficacy and safety of the new Intrepid Hybrid tip and Active Sentry handpiece in comparison to the conventional Intrepid Balanced tip and Centurion handpiece.…”

Section: Introductionmentioning

confidence: 99%

“…4–8 Furthermore, the Intrepid Hybrid tip is designed to minimize damage to the capsular bag and other tissues. 8,9…”

Section: Introductionmentioning

confidence: 99%

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The efficacy and safety profile of cataract procedures performed with a sensor-embedded handpiece and a new hybrid phaco tip

Sabur

Ünsal

2022

European Journal of Ophthalmology

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Objective To evaluate the efficacy and safety of the new Intrepid Hybrid tip and Active Sentry handpiece in comparison to the Intrepid Balanced tip and Centurion Ozil handpiece. Methods One hundred sixty-eight eyes were included in the study and randomized into Group 1 (Active Sentry handpiece + Intrepid Hybrid tip, n = 86) and Group 2 (Centurion Ozil handpiece + Intrepid Balanced tip, n = 82). Data were collected from the phaco device, including total U/S time, cumulative dissipated energy (CDE), the total number of active surge mitigation actuations (ASM actuations), torsional amplitude, torsional amplitude on time, estimated fluid of aspirated, and aspiration time. Endothelial cell count (ECC) and central corneal thickness (CCT) were assessed. A correlation analysis was performed between ASM actuations, phaco metrics, and patient characteristics in Group 1. Results The CDE, torsional amplitude measured in Group 1 (8.8 ± 3.9, 51.2 ± 13.3, respectively) were significantly lower than those of Group 2 (10.4 ± 4.2, 65.2 ± 9.3, respectively). While no complications were observed in group 1, there were posterior capsule rupture in 2 eyes and iris damage in 1 eye in group 2. The mean ECC and CCT were similar at 1 month. The ASM actuations were more engaged in the eyes with pseudoexfoliation and small pupils. Conclusion The combination of the new Intrepid Hybrid tip and Active Sentry handpiece enables safer cataract procedures without compromising efficacy due to its surge prevention mechanisms and special tip design. It could be a good option for residents in training.

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Section: Discussionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

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The efficacy and safety profile of cataract procedures performed with a sensor-embedded handpiece and a new hybrid phaco tip

Sabur

Ünsal

2022

European Journal of Ophthalmology

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“…19 Because the tip that we evaluated in this study has already demonstrated a decreased incidence of PCR in a laboratory setting using both a nonanimal and a cadaver eye model, and because we now show that it is unlikely to affect efficiency, the hybrid tip could be important in resident training. 6,9 As the patients with a PCR incur, on average, $1000 in extra cost, there would seem to be only an upside for general use of this tip. 12 The study was limited by the number of trials performed and the specific settings used.…”

Section: Discussionmentioning

confidence: 99%

“…The coating seems to be just enough to protect the posterior capsule, but not enough to cause a noticeable effect in its cutting ability. 9 Of interest, it was found that the longitudinal US had decreased efficiency as the power increased. This is opposite of the result seen in torsional US; the efficiency increased with increasing power.…”

Section: Discussionmentioning

confidence: 99%

Efficiency of a polymer-coated phacoemulsification tip in cataract surgery

Cardenas

Ungricht

Zaugg

et al. 2023

J Cataract Refract Surg

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In vitro analysis of clinically relevant aspects of a polymer-coated phacoemulsification tip vs a traditional tip

Zacharías¹

2023

J Cataract Refract Surg

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Purpose: To compare the in vitro incisional temperature, acoustic energy, transient cavitation, and turbulence of the polymer-coated hybrid phacoemulsification tip with the balanced tip. Setting: Pasteur Ophthalmology Clinic, Vitacura, Santiago, Chile. Design: Laboratory study Methods: The Centurion Vision System with Active Sentry handpiece was used with tips operated in torsional mode, and stroke was normalized. For thermal measurements, controlled loads were applied over the tip sleeve simulating the pressure applied at the expected level of the corneal incision. Heat generated was recorded on a blackbody filmstrip using infrared imaging. A directional hydrophone provided 360° mapping of acoustic pressure. Cavitation patterns with increasing ultrasound power were imaged with high-speed video recording. Particle image velocimetry was used to evaluate turbulence, streaming, and bubble formation. Results: The temperature rise for the hybrid and balanced tips was lower than with the control mini-flared Kelman tip (P≤0.0001). The hybrid tip generated reduced acoustic output compared with the balanced tip. Ultrasound threshold for cavitation was higher for the hybrid versus balanced tip (55% vs 25%). Fluid turbulence was more evident with the balanced tip compared with the hybrid tip at all flow conditions when normalized for stroke at 60% and 80% power for balanced and hybrid tip, respectively. Conclusion: The polymer-coated hybrid tip showed reduced heat generation compared with the control mini-flared Kelman tip and had lower acoustic output, lower cavitation, and lower turbulence compared with the balanced tip, suggesting potential for improved clinical safety.

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Evaluation of the capsular safety of a new hybrid phacoemulsification tip in a cadaver eye model

Cited by 5 publications

References 12 publications

The efficacy and safety profile of cataract procedures performed with a sensor-embedded handpiece and a new hybrid phaco tip

The efficacy and safety profile of cataract procedures performed with a sensor-embedded handpiece and a new hybrid phaco tip

Efficiency of a polymer-coated phacoemulsification tip in cataract surgery

In vitro analysis of clinically relevant aspects of a polymer-coated phacoemulsification tip vs a traditional tip

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