Automated viscous fluid control in vitreoretinal surgery

A viscous fluid and vitreous cavity technology, applied in ophthalmic surgery, flow monitors, and instruments introduced into the body, can solve problems such as difficult extraction

Pending Publication Date: 2019-01-04
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, during liquid tampon aspiration, the high viscosity of the liquid tampon may make it difficult to withdraw

Method used

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  • Automated viscous fluid control in vitreoretinal surgery
  • Automated viscous fluid control in vitreoretinal surgery
  • Automated viscous fluid control in vitreoretinal surgery

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Embodiment Construction

[0020] For the purposes of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe them. 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, apparatus, systems, methods, and any further applications of the principles of the disclosure are fully contemplated as would normally occur to one skilled in the art to which the disclosure pertains. In particular, it is fully contemplated that features, components and / or steps described with respect to one embodiment may be combined with features, components and / or steps described with respect to other embodiments of the present disclosure. For simplicity, in some cases, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

[0021] The present di...

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Abstract

Ophthalmic surgical devices, systems, and methods for automatically controlling the injection or extraction of viscous fluids from a patient's eye are provided. A syringe pump connected with an actuation line and a powered syringe provides pressures for viscous fluid injection or extraction in a vitreous chamber of the eye. A sensor disposed adjacent to or inside the eye determines sensor data relating to an intraocular pressure (IOP). The controller receives the sensor data and regulates the injection or extraction of the viscous fluid in response to the detected IOP, such as by controlling the syringe pump. The controller may determine whether the IOP is above an upper threshold or below a lower threshold and may control the syringe pump to regulate the injection or extraction of viscousfluid to maintain the IOP between the upper and the lower thresholds.

Description

technical field [0001] The present disclosure relates to ophthalmic surgical devices, systems and methods. More specifically, but without limitation, the present disclosure relates to devices, systems, and methods for automating viscous fluid control for filling and removing fluid tampons in a patient's eye during ophthalmic surgery. Background technique [0002] Microsurgical procedures often require precise cutting and / or removal of various body tissues. For example, certain eye surgery procedures require cutting and removing part of the vitreous humor, the clear, jelly-like substance that fills the back segment of the eye. The vitreous humor, or vitreous, is composed of many microscopic fibrils that often attach to the retina. Therefore, the vitreous must be cut and removed very carefully to avoid traction on the retina, separation of the retina from the choroid, retinal tears, or in the worst case, cutting and removal of the retina itself. In particular, delicate proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007A61M1/00A61M3/02
CPCA61F9/00736A61M5/142A61M5/16877A61M2005/14208A61M2205/3344A61M2005/1726A61M2205/502A61M2205/52A61M2210/0612A61B3/16A61F9/0017A61F9/00781A61M5/1723
Inventor T·黑伦A·D·约翰逊
Owner ALCON INC
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