A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 9/22 (2006.01) A61M 1/00 (2006.01) A61M 5/00 (2006.01) A61M 25/00 (2006.01) A61M 31/00 (2006.01) A61M 35/00 (2006.01)
Patent
CA 2336571
A method and apparatus for performing surgery inside the human retina (26) using fluidic internal limited membrane separation (FILMS) to remove the internal limiting retinal layer (22) from the neural retinal layer (26) at the macula, is claimed. The method comprises inserting a hollow microcannula (14) between the retinal internal limiting membrane (ILM) (22) and the neural retinal layer at or near the macula and injecting a sterile fluid (20), such as sodium hyaluronate, through the microcannula (14) and thereby raising the macular ILM retinal layer (22) away from the neural retina (26) such that it can then be removed by conventional means, while simultaneously smoothing the neural retina (26) by localized pressure. The microcannula (14) maintains a distal end (12) shaped to conform tangentially to the retinal surface (26). The sharply beveled distal tip (14) is adapted for fluid discharge, and easy insertion under the ILM retinal layer (22).
L'invention concerne une technique et un dispositif permettant d'effectuer une intervention chirurgicale dans la rétine humaine (26) par séparation fluidique de la membrane limitante interne (ILM) (FILMS), afin de séparer la couche rétinienne limitante interne (22) de la neuro-rétine (26) au niveau de la macula. Selon la technique, on insère une micro-canule creuse (14) entre la membrane limitante interne (ILM) et la neuro-rétine au niveau ou à proximité de la macula ; on injecte un fluide stérile (20), tel que du hyaluronate de sodium, par la micro-canule (14), ce qui soulève la couche ILM (22) maculaire et la sépare de la neuro-rétine (26) ; et on enlève ladite couche ILM par les moyens classiques, tout en lissant la neuro-rétine par application d'une pression localisée. La micro-canule (14) conserve à son extrémité distale (12) une forme lui permettant de s'adapter tangentiellement à la surface rétinienne (26). La pointe distale (14) chanfreinée et acérée est conçue pour permettre l'évacuation du fluide et pour faciliter son insertion dans la couche ILM (22) de la rétine.
Morris Robert E.
Smart & Biggar
LandOfFree
Method and apparatus for performing surgery inside the human... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for performing surgery inside the human..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for performing surgery inside the human... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1454965