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US5037384A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for the treatment of complicated retinal detachments

Assignee: Cornell Research Foundation Inc
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Filing: 1989-09-11
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Granted: 1991-08-06
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Expires: 2009-09-11
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Abstract

Abstract The present invention relates to an improved microsurgical instrumentation, and an improved method using a perfluorocarbon material for hydrokinetic manipulation, for the surgical treatment of complicated retinal detachments of the eye.

Inventors

  • 👤 Stanley Chang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 11:36
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/20; A61M5/2053; A61F; A61F9/00; A61F9/007; A61F9/00727; A61M5/31; A61M5/315; A61M5/31525; A61M5/31565; A61M5/31576; A61M2005/3117; A61M2005/3118; A61M2005/3128

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 105 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; removing at least a portion of the vitreous from the vitreous chamber; infusing a sufficient amount of a liquid perfluorocarbon into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; and removing the liquid perfluorocarbon from the vitreous chamber of the eye.
Claim 2
Dependent Claim 105 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; removing at least a portion of the vitreous from the vitreous chamber; infusing a sufficient amount of a liquid perfluorocarbon into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; and removing the liquid perfluorocarbon from the vitreous chamber of the eye.
Claim 3
Dependent Claim 35 words
The procedure according to claim 1 wherein the infusing of liquid perfluorocarbon into the chamber of the eye continues until from about 5 to about 85 percent of the chamber becomes filled with the perfluorocarbon.
Claim 4
Dependent Claim 28 words
A procedure according to claim 1 which further comprises removing a least a portion of the vitreous in the chamber of the eye prior to infusion with perfluorocarbon.
Claim 5
Dependent Claim 27 words
The procedure according to claim 1 which further comprises introducing a sterile gas bubble or silicon oil into the eye chamber as a long term vitreous replacement.
Claim 6
Dependent Claim 20 words
A procedure according to claim 1 wherein the liquid perfluorocarbon is removed from the chamber of the eye by aspiration.
Claim 7
Dependent Claim 50 words
The procedure according to claim 1 wherein the removal of liquid perfluorocarbon from the chamber of the eye comprises: introducing saline into the chamber of the eye and thereby causing any residual amounts of perfluorocarbon to coalesce into spheres; and removing the spherical perfluorocarbon from the the chamber by aspiration.
Claim 8
Dependent Claim 110 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; infusing a sufficient amount of a liquid perfluorocarbon into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; introducing saline into the chamber thereby causing any residual amounts perfluorocarbon to coalesce into spheres; and removing the liquid perfluorocarbon from the vitreous chamber of the eye by aspiration.
Claim 9
Dependent Claim 110 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; infusing a sufficient amount of a liquid perfluorocarbon into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; introducing saline into the chamber thereby causing any residual amounts perfluorocarbon to coalesce into spheres; and removing the liquid perfluorocarbon from the vitreous chamber of the eye by aspiration.
Claim 10
Dependent Claim 64 words
In a surgical procedure for the surgical repair of retinal detachment require requires the manipulation of the retina by the surgeon, the improvement of which comprises removing at least a portion of the vitreous from the chamber of the eye and infusing over the optic disk an amount of liquid perfluorocarbon sufficient to provide for intraoperative hydrokinetic manipulation of the retina by the surgeon.
Claim 11
Dependent Claim 64 words
In a surgical procedure for the surgical repair of retinal detachment require requires the manipulation of the retina by the surgeon, the improvement of which comprises removing at least a portion of the vitreous from the chamber of the eye and infusing over the optic disk an amount of liquid perfluorocarbon sufficient to provide for intraoperative hydrokinetic manipulation of the retina by the surgeon.
Claim 12
Dependent Claim 129 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; removing at least a portion of the vitreous from the vitreous chamber; infusing a sufficient amount of a liquid, optically clear perfluorocarbon having a specific gravity of from about 1.3 to about 2.1 and a refractive index of from about 1.25 to about 1.34 into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; and removing the liquid perfluorocarbon from the vitreous chamber of the eye.
Claim 13
Dependent Claim 129 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; removing at least a portion of the vitreous from the vitreous chamber; infusing a sufficient amount of a liquid, optically clear perfluorocarbon having a specific gravity of from about 1.3 to about 2.1 and a refractive index of from about 1.25 to about 1.34 into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; and removing the liquid perfluorocarbon from the vitreous chamber of the eye.
Claim 14
Dependent Claim 120 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment brought about by diabetic retinopathy, proliferative retinopathy, retinopathy of prematurity, retinal tearing, or ocular trauma which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; removing at least a portion of the vitreous from the vitreous chamber; infusing a sufficient amount of a liquid perfluorocarbon into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; and removing the liquid perfluorocarbon from the vitreous chamber of the eye.
Claim 15
Dependent Claim 120 words
A surgical procedure for the hydrokinetic manipulation of the retina during vitreous surgery for retinal detachment brought about by diabetic retinopathy, proliferative retinopathy, retinopathy of prematurity, retinal tearing, or ocular trauma which comprises: making at least one incision in the pars plana of the eye to gain entry to the vitreous chamber of the eye; removing at least a portion of the vitreous from the vitreous chamber; infusing a sufficient amount of a liquid perfluorocarbon into the vitreous chamber of the eye to stabilize the retina and provide for manipulation of the retina; manipulating the retina into substantially its normal position within the eye; repairing the retinal detachment; and removing the liquid perfluorocarbon from the vitreous chamber of the eye.

References Cited (Backward Citations)

US4795423A Cited
US4490351A Cited
WO1987001271A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-08-05 1995-02-04 1995-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-08-05 1999-02-04 1999-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-08-05 2003-02-04 2003-08-06 $7700.00 Window Closed / Lapsed

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