Subretinal fluid drainage instruments, systems, and methods

A retina and fluid technology, used in subcutaneous injection devices, drug devices, other medical devices, etc., can solve problems such as vision loss and retinal damage

Inactive Publication Date: 2019-03-15
NOVARTIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the retina is detached from the RPE/choroid, the detached portion of the retina is no longer able to recei

Method used

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  • Subretinal fluid drainage instruments, systems, and methods
  • Subretinal fluid drainage instruments, systems, and methods
  • Subretinal fluid drainage instruments, systems, and methods

Examples

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Embodiment Construction

[0021] For the purposes of promoting an understanding of the principles of the present disclosure, reference will now be made to the implementations shown in the accompanying drawings. Concrete language will be used to describe these implementations. It should be understood, however, that no limitation of the scope of the present disclosure is intended. Any changes and further modifications to the described devices, apparatuses, systems, methods and any further applications of the principles of the present disclosure will generally be well within the reach of those skilled in the art to which the present disclosure pertains. In particular, it is entirely conceivable that features, components and / or steps described for one implementation may be combined with features, components and / or steps described for other implementations of the present disclosure. For example, although explanatory references are made to "ophthalmic applications," other medical applications are also withi...

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Abstract

A surgical instrument for removal of subretinal fluid is provided herein. The surgical instrument may include a handle coupleable to an aspiration source and a first elongate tubular member having a proximal end and a distal end, the proximal end being coupled to the rotational structure such that the first elongate tubular member is rotatable around the axis. The handle may be configured to rotate around an axis of a handle body. The surgical instrument may further include a second elongate tubular member having a proximal end and a distal end, the proximal end of the second elongate tubularmember being coupled to the distal end of the first elongate tubular member, and a port formed through a wall of the second member for aspirating material from a body cavity through the first and second members. The second elongate tubular member may be curved when exposed to body temperature.

Description

technical field [0001] The present disclosure relates to devices, systems and methods for draining fluid from behind the retina of the eye. Background technique [0002] Under normal conditions in the human eye, the retina is physically attached to the choroid. The vitreous humor (a clear jelly-like substance) fills the back segment of the eye and also helps hold the retina firmly against the choroid. [0003] Several ophthalmic disorders are characterized by detachment of the retina from the retinal pigment epithelium (RPE) and choroid. This usually happens when there is a hole in the retina. Retinal tears may allow vitreous humor or aqueous humor to flow between the retina and RPE / choroid, resulting in an undesired accumulation of subretinal fluid. This may detach part of the retina from the choroid. However, when the retina is detached from the RPE / choroid, the detached portion of the retina is no longer able to receive nutrients from the choroid, which can lead to pe...

Claims

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Application Information

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IPC IPC(8): A61F9/007
CPCA61F9/00727A61F9/00736A61M1/842A61B17/3403A61M25/0136A61M25/0158A61M2205/0266
Inventor S·T·查尔斯
Owner NOVARTIS AG
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