The invention discloses a tissue engineering retina diaphragm intravitreal injector, including elastic plastic casing and microforceps, microforceps including operating forceps forceps handle and the front end is provided with a micro forceps microforceps piece tube handle, microforceps tube handle and the end of operation forceps forceps handle through the linkage device is connected with the elastic plastic casing, including the outer sleeve and the outer sleeve handle, outer casing sliding sleeve in microforceps tube handle, microforceps piece is located in front of the outer sleeve inside the rubber ring sealing block is arranged between the outer sleeve and the central tube micro forceps handle, the handle and the outer casing outer casing from the end plate connection microforceps, fastening outer casing outer handle. The sliding sleeve, microforceps piece is located at the end of the outer casing external. The invention successfully avoids the weakness of the diaphragm insertion and contraction, and the retina diaphragm can be accurately delivered to the designated site by the direction of the cell surface toward the retinal surface. The invention can effectively reduce the surgical trauma and protect the seed cells carried on the tissue engineering scaffold.
【技术实现步骤摘要】
一种组织工程视网膜膜片玻璃体腔内推注器
本专利技术涉及医疗器械领域,尤其涉及一种组织工程视网膜膜片玻璃体腔内推注器。
技术介绍
随着近年来干细胞替代治疗的研究迅速发展,利用干细胞修复视网膜细胞损伤成为了眼科领域颇有前景的潜在治疗方案。诱导多能干细胞(inducedpluripotentstemcells,iPSCs)是目前在细胞替代治疗领域应用与研究最为广泛的干细胞之一。它可由患者自身体细胞重编程获得,具有自我更新和多向分化的潜能。由患者特异的iPSCs诱导分化为目的细胞,并进行移植具有低免疫原性等多重优势。目前,在治疗视网膜疾病的iPSCs替代治疗研究中,视网膜下腔注射的植入方式应用较为广泛,其原因除了部分视网膜疾病主要损伤的为光感受器及视网膜色素上皮(RPE)细胞,视网膜下腔移植符合其本身解剖结构以外,更有重要的原因在于,视网膜下腔作为潜在腔隙,细胞的送入及固定均较为便捷。而对于另外一些视网膜疾病,如青光眼的视网膜损伤,其损伤层次主要位于视网膜玻璃体侧,此处无潜在腔隙可供细胞附着,因而限制了该类型细胞替代治疗研究的进展。为解决该难题,专利技术人前期选择可降解聚 ...
【技术保护点】
一种组织工程视网膜膜片玻璃体腔内推注器,其特征在于,包括弹性塑料套管和显微镊,所述显微镊包括操作镊镊柄(1)和前端设有显微镊片(2)的显微镊管柄(3),所述显微镊管柄(3)末端与操作镊镊柄(1)通过联动装置连接,所述弹性塑料套管包括外层套管(5)和外层套管手柄(6),所述外层套管(5)滑动套于显微镊管柄(3)上,显微镊片(2)前端位于外层套管(5)内部,且外层套管(5)的中部与显微镊管柄(3)之间设有用于将外层套管(5)和显微镊管柄(3)密封连接的橡胶环形密封块(4),所述外层套管手柄(6)与外层套管(5)远离显微镊片(2)的一端连接,扣紧外层套管手柄(6),外层套管(5) ...
【技术特征摘要】
1.一种组织工程视网膜膜片玻璃体腔内推注器,其特征在于,包括弹性塑料套管和显微镊,所述显微镊包括操作镊镊柄(1)和前端设有显微镊片(2)的显微镊管柄(3),所述显微镊管柄(3)末端与操作镊镊柄(1)通过联动装置连接,所述弹性塑料套管包括外层套管(5)和外层套管手柄(6),所述外层套管(5)滑动套于显微镊管柄(3)上,显微镊片(2)前端位于外层套管(5)内部,且外层套管(5)的中部与显微镊管柄(3)之间设有用于将外层套管(5)和显微镊管柄(3)密封连接的橡胶环形密封块(4),所述外层套管手柄(6)与外层套管(5)...
【专利技术属性】
技术研发人员:葛坚,罗子明,李凯婧,李康,
申请(专利权)人:中山大学中山眼科中心,
类型:发明
国别省市:广东,44
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