Injection force comparison of the old and new dexamethasone implant insertion needles in porcine eyes and synthetic sclera
Copyright 2014, SLACK Incorporated.
| Publié dans: | Ophthalmic surgery, lasers & imaging retina. - 2013. - 45(2014), 3 vom: 24. Mai, Seite 232-8 |
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| Auteur principal: | |
| Autres auteurs: | , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2014
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| Accès à la collection: | Ophthalmic surgery, lasers & imaging retina |
| Sujets: | Comparative Study Journal Article Research Support, Non-U.S. Gov't Drug Implants Glucocorticoids Dexamethasone 7S5I7G3JQL |
| Résumé: | Copyright 2014, SLACK Incorporated. BACKGROUND AND OBJECTIVE: Determine whether the new dexamethasone intravitreal implant (Ozurdex; Allergan, Irvine, CA) injector needle design can reduce the force needed for insertion when compared to the original needle design MATERIALS AND METHODS: In vitro testing assessed the force required for insertion from five new-design and five old-design Ozurdex needles on a synthetic test medium and explanted porcine eyes. Maximum penetration force was measured in grams-force, while the total work of the needle was measured in joules RESULTS: The new design required 29% and 68% less overall work to perform an injection in the synthetic medium (P = .0002) and porcine eyes (P = .009), respectively. The maximum force required to insert the new needle was 25% and 61% that of the old needle in the synthetic medium (P = .001) and porcine eyes (P = .007), respectively CONCLUSION: The new needle design significantly reduces the force and work needed for insertion, which should improve physician control as well as patient safety and comfort |
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| Description: | Date Completed 05.12.2014 Date Revised 25.11.2016 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 2325-8179 |
| DOI: | 10.3928/23258160-20140430-01 |