Patent EP0674419A2 successfully refreshed from Google Patents.
US6733491B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cataract extraction apparatus and method
Assignee: Johnson and Johnson Surgical Vision Inc
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Filing: 2001-09-07
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Granted: 2004-05-11
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Expires: 2021-09-07
Abstract
Abstract Apparatus for the removal of lens tissue includes a first handpiece having a laser emitting probe sized for insertion into a lens capsule and radiating a lens therein. The laser emitting probe includes a lumen for introducing irrigation fluid into the lens capsule. A second handpiece includes a vibrated needle for insertion into the lens capsule and emulsifying laser eradiated lens tissue. The vibrated needle includes a lumen therethrough for aspiration of emulsified lens tissue and irrigation fluid.
Inventors
- 👤 Kenneth E. Kadziauskas
- 👤 Mark E. Steen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:43
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/008; A61F9/00736; A61F9/00745; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B2017/32007; A61B2017/320084; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61F2009/00861; A61F2009/0087; A61F2009/00885; A61F2009/00887
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A method for removing lens tissue from a lens capsule, said method comprising: inserting a laser emitting probe having an irrigation lumen into said lens capsule; inserting a vibratable needle having an aspiration lumen into said lens capsule; introducing irrigation fluid into said lens capsule through said irrigation lumen; softening said lens tissue by exposure to laser energy from said laser emitting probe; vibrating the needle to emulsify softened lens tissue; controlling operation of the laser emitting probe and vibratable needle simultaneously and sequentially in order to effect emulsification of the lens tissue; and aspirating emulsified lens tissue and irrigation fluid from said lens capsule through said aspiration lumen.
Claim 2
Independent Claim
109 words
A method for removing lens tissue from a lens capsule, said method comprising: inserting a laser emitting probe having an irrigation lumen into said lens capsule; inserting a vibratable needle having an aspiration lumen into said lens capsule; introducing irrigation fluid into said lens capsule through said irrigation lumen; softening said lens tissue by exposure to laser energy from said laser emitting probe; vibrating the needle to emulsify softened lens tissue; controlling operation of the laser emitting probe and vibratable needle simultaneously and sequentially in order to effect emulsification of the lens tissue; and aspirating emulsified lens tissue and irrigation fluid from said lens capsule through said aspiration lumen.
Claim 3
Dependent Claim
12 words
The method according to claim 1 wherein the needle is vibrated ultrasonically.
Claim 4
Independent Claim
112 words
A method for removing lens tissue from a lens capsule, said method comprising: inserting a laser emitting probe having an irrigation lumen into said lens capsule; inserting a vibratable needle having an aspiration lumen into said lens capsule; introduction irrigation fluid into said lens capsule through said irrigation lumen; fracturing said lens tissue by exposure to laser energy from said laser emitting probe; vibrating the needle to emulsify fractured lens tissue; controlling the fracturing of said lens tissue and emulsification of fractured lens tissue simultaneously and sequentially in order to effect emulsification of the lens tissue; and aspirating emulsified lens tissue and irrigation fluid from said lens capsule through said aspiration lumen.
Claim 5
Independent Claim
112 words
A method for removing lens tissue from a lens capsule, said method comprising: inserting a laser emitting probe having an irrigation lumen into said lens capsule; inserting a vibratable needle having an aspiration lumen into said lens capsule; introduction irrigation fluid into said lens capsule through said irrigation lumen; fracturing said lens tissue by exposure to laser energy from said laser emitting probe; vibrating the needle to emulsify fractured lens tissue; controlling the fracturing of said lens tissue and emulsification of fractured lens tissue simultaneously and sequentially in order to effect emulsification of the lens tissue; and aspirating emulsified lens tissue and irrigation fluid from said lens capsule through said aspiration lumen.
Claim 6
Dependent Claim
12 words
The method according to claim 3 wherein the needle is vibrated ultrasonically.
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