Novel Needle for Intravitreal Drug Delivery: Comparative Study of Needle Tip Aspirates, Injection Stream and Penetration Forces
نویسندگان
چکیده
منابع مشابه
Comparative cyto-histological study of needle tip aspirates and entry sites after intravitreal injection using different needle types
A comparison of the cellular content of needle tip aspirates and entry sites after transconjunctival intravitreal injection (IVI) using different needle types was performed. White outbred rats and human cadaver eyes were used for IVI by hypodermic 27 gauge (G) and 30G needles, and spinal anesthesia Pencan 27G needles. Aspiration of vitreous for quantitative morphological and cell cultivation an...
متن کاملNeedle-Free Insulin Drug Delivery
For most patients with type 1 diabetes, the worst part of the disease is to tolerate needle after needle, both for glucose measurement and to deliver insulin. In the last two decades, concept of insulin therapy by multiple-dose injection has undergone a miraculous change. Needle-free insulin delivery appeared to be a wonderful approach, and its allure rested in being comfortable and safe. In to...
متن کاملBacterial contamination of needle points after intravitreal injection.
PURPOSE Evaluation of the magnitude and pattern of bacterial contamination of needle points with conjunctival bacteria during the intravitreal injection. Analysis of the efficacy of preinjection prophylaxis. METHODS A total of 550 intravitreal injections were done in 414 patients (n=425 eyes). A total of 289 patients were injected once, while 125 patients received several injections. Before t...
متن کاملComputerized Diagnosis of Breast Fine-Needle Aspirates
The goal of this work is to determine the accuracy of computer-based image analysis in diagnosing breast fine-needle aspirates (FNA). On 192 FNAs, the computerbased diagnostic accuracy was 97.9%. This is consistent with the 97.5% accuracy projected by machine learning methods during the initial training in 1994 with 569 FNAs. One of the attributes of this system is the rendering of a value that...
متن کاملAdequacy of core needle biopsy specimens and fine-needle aspirates for molecular testing of lung adenocarcinomas.
OBJECTIVES Molecular testing of lung adenocarcinomas for epidermal growth factor (EGFR) mutations and an anaplastic lymphoma kinase (ALK) translocation is important to guide directed therapy with tyrosine kinase inhibitors. The goal of this study was to determine whether transthoracic computed tomography-guided core needle biopsy (CNB) and fine-needle aspiration (FNA) biopsy specimens were equa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Clinical Ophthalmology
سال: 2021
ISSN: 1177-5483
DOI: 10.2147/opth.s297139