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Ophthalmic microsurgical tools, systems, and methods of use

A surgical instrument and fluid system technology, which is applied in ophthalmic surgery, suction irrigation system, laser surgery, etc., and can solve problems such as corneal endothelial cell damage

Pending Publication Date: 2021-04-23
CARL ZEISS MEDITEC CATARACT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when larger volumes of irrigation fluid are used, the flow rate through the eye is higher and thus there may be additional turbulence of the irrigation fluid and this further causes corneal endothelial cell damage

Method used

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  • Ophthalmic microsurgical tools, systems, and methods of use
  • Ophthalmic microsurgical tools, systems, and methods of use
  • Ophthalmic microsurgical tools, systems, and methods of use

Examples

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Embodiment Construction

[0076] Described herein are systems, devices, and methods for ophthalmic microsurgical tools useful for intraocular fragmentation and removal of lenses, vitreous, and other tissues during intraocular surgery. Various systems, devices, and methods are configured to perform one or more functions useful in ophthalmic procedures, including, but not limited to, cutting, crushing, emulsifying, aspiration, and / or flushing present at a target site during a procedure in ophthalmology s material. As used herein, "material" can include fluid (from or supplied to the eye), tissue or fragments of tissue, such as lens tissue, vitreous, cells, and during procedures in the eye (such as cataract procedures, vitrectomy procedures, etc.) Any other fluid or tissue or other material that may be present. The systems, devices, and methods described herein are configured to apply vacuum and deliver fluid to maintain pressure balance within the eye. The systems, devices, and methods described herein...

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PUM

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Abstract

A system for extracting lens material from an eye including an instrument having a first aspiration pump driven by a drive mechanism having a motor, and an elongate member sized and configured to extend through an anterior chamber to a capsular bag of the eye. The elongate member configured to be oscillated by the drive mechanism includes an inner lumen fluidly coupled to the first aspiration pump and defining at least a portion of an aspiration waste line, and an open distal end having a distal cutting tip. The system can further include a fluid system remote from the surgical instrument including a second aspiration pump and a fluid line configured to deliver background aspiration from the second aspiration pump to the inner lumen of the elongate member to aspirate the lens material from the eye towards the inner lumen. Related devices, systems, and methods are also provided.

Description

[0001] Cross References to Related Applications [0002] This application requires serial number No. 62 / 680,723 filed on June 5, 2018; serial number No. 62 / 692,443 filed on June 29, 2018; serial number No. 62 / 692,443 filed on January 7, 2019 62 / 789,348; and the priority of co-pending U.S. Provisional Patent Application Serial No. 62 / 846,280, filed May 10, 2019. The disclosure of the provisional application is hereby incorporated by reference in its entirety. technical field [0003] The present technology relates generally to ophthalmic microsurgical tools and systems, and more particularly to ophthalmic microsurgical tools and systems with integrated pumping and fluid management systems. Background technique [0004] Certain types of routine eye surgery require breaking up lens tissue and intraocular objects such as the intraocular lens or vitreous so that they can be removed from the eye. For example, lens extraction for cataract surgery is one of the most common surgic...

Claims

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Application Information

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IPC IPC(8): A61F9/007
CPCA61M2210/0612A61M2205/50A61M2205/3344A61M2205/3561A61M2205/3334A61F9/00745A61M2209/08A61M3/022A61M1/81A61M1/74A61M1/741A61M1/75F04B49/12F04B43/1253F04B23/02F04B5/02F04B9/042F04B49/065A61M1/77A61F9/008A61F9/00754A61F2009/00887A61F2250/0093
Inventor C·巴尔肯布施P·本特利L·W·克劳森M·内维尔M·沙勒
Owner CARL ZEISS MEDITEC CATARACT TECH INC
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