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Surgical instruments for minimally invasive tissue aspiration

A tissue and equipment technology, applied in the direction of surgical instruments for suctioning substances, medical flushing surgical instruments, parts of surgical instruments, etc., can solve the problems of short pulses lacking in the transmission of optical waveguide beams, unrealized handheld instruments, etc.

Active Publication Date: 2022-05-17
LIGHT MATTER INTERACTION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The latter technique suffers from the need for a projection system and has not been implemented in hand-held instruments due to the lack of efficient optical waveguide beam delivery for such short pulses

Method used

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  • Surgical instruments for minimally invasive tissue aspiration
  • Surgical instruments for minimally invasive tissue aspiration
  • Surgical instruments for minimally invasive tissue aspiration

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Embodiment Construction

[0021] In some examples, the present invention provides a handheld laser phacoemulsification device for destroying and removing cataractous lens tissue.

[0022] In some examples, the present invention provides an apparatus that facilitates providing improved suction rates for surgical instruments 54 as compared to conventional instruments by utilizing laser energy to destroy tissue in contact with fiber optic tip 16 . The fiber optic tip 16 is located co-linearly within the small diameter of the suction channel adapted for manual positioning within the anterior capsule of the human eye. The optical fiber 16 can be advanced or retracted within the aspiration channel to enhance the aspiration rate of the tissue and also minimize the risk of damaging tissue not intended for aspiration.

[0023] In some examples, the present invention integrates the control of fluid (suction and irrigation devices) and laser destruction through an algorithm based on user input as well as sensor o...

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Abstract

A device used to destroy cataracts in the lens tissue. The device comprises a housing; a source of pulsed laser radiation and an optical waveguide. The optical waveguide is configured to conduct pulsed laser radiation from a pulsed laser radiation source and is coupleable to the pulsed laser radiation source at a proximal end of the optical waveguide to receive pulsed laser radiation from the pulsed laser radiation source. The device also includes a drive mechanism coupled to the optical waveguide to controllably vary a relative position of the optical waveguide to the distal end of the housing.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 564,019, entitled "Surgical Instruments for Minimally Invasive Aspiration of Tissue," filed September 27, 2017, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention generally relates to devices and methods for use in cataract surgery. More particularly, the present invention relates to surgical laser ablation devices and methods for destroying and aspiration of cataractous lens tissue. Background technique [0004] Cataract surgery was developed to treat blindness caused by the clouding of tissue in the lens of the human eye. Although most cases of cataracts are related to the aging process, occasionally children are born with the condition, or they may develop after eye injury, inflammation, and other eye diseases. The treatment of cataract lens tissue is one of the most commonly perfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/008A61F9/011
CPCA61F9/00802A61F9/009A61F9/00834A61F9/00825A61F2009/00872A61F2009/00897A61F2009/00887A61F2009/0087A61B18/22A61B2018/00577A61B2018/00642A61B2018/00732A61B2018/00863A61B2018/2005A61B2218/002A61F9/00821A61B2218/007A61B2018/00196A61B17/00234
Inventor D·克伦默
Owner LIGHT MATTER INTERACTION INC