Apparatus for implanting an artifical meshwork in glaucoma surgery
First Claim
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1. A guide knife assembly for inserting a filter member into an eye, comprising:
- a guide knife apparatus, including;
a handle portion;
a blade portion projecting distally from a distal end of said handle portion, said blade portion terminating distally in a sharp distal end, said blade portion having first and second major side surfaces;
a flange element having proximal and distal ends and first and second generally parallel, major side faces, said flange element being coupled to one of said blade portion and said handle portion and extending distally in side by side generally parallel relation to said blade portion such that the first major side face thereof is in parallel, opposed facing relation to said first major side surface of said blade portion and defining a filtering member receiving space therebetween; and
a filtering member mounted to said guide knife apparatus so that at least a portion of said filtering member is disposed in said filter element receiving space, said filtering member comprising a sheet of polymer material which has been folded to define a front portion and a back portion, side edges of said front portion being coupled to respective side edges of the back portion.
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Abstract
A method and device which is used to insert an implant in order for treating an eye with glaucoma in order to lower the intraocular pressure of the eye. The implant is an artificial meshwork. The implant is attached to a guide knife which is inserted into the anterior chamber of the eye. The knife is then removed leaving the implant in place. During the operation, a prismatic lens with c-shaped vacuum ring is used to help assist the surgeon in viewing the anterior chamber of the eye and stabilizing the eye.
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Citations
13 Claims
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1. A guide knife assembly for inserting a filter member into an eye, comprising:
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a guide knife apparatus, including; a handle portion; a blade portion projecting distally from a distal end of said handle portion, said blade portion terminating distally in a sharp distal end, said blade portion having first and second major side surfaces; a flange element having proximal and distal ends and first and second generally parallel, major side faces, said flange element being coupled to one of said blade portion and said handle portion and extending distally in side by side generally parallel relation to said blade portion such that the first major side face thereof is in parallel, opposed facing relation to said first major side surface of said blade portion and defining a filtering member receiving space therebetween; and a filtering member mounted to said guide knife apparatus so that at least a portion of said filtering member is disposed in said filter element receiving space, said filtering member comprising a sheet of polymer material which has been folded to define a front portion and a back portion, side edges of said front portion being coupled to respective side edges of the back portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A guide knife apparatus for inserting a filtering member into an eye, comprising:
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a handle portion; a blade portion projecting distally from a distal end of said handle portion, said blade portion terminating distally in a sharp distal end, said blade portion having first and second major side surfaces; a flange element having proximal and distal ends and first and second generally parallel, major side faces, said flange element being coupled to one of said blade portion and said handle portion and extending distally in side by side generally parallel relation to said blade portion such that the first major side face thereof is in parallel, opposed facing relation to said first major side surface of said blade portion so as to define a filtering member receiving space therebetween; and wherein the blade has a window which allows light to pass therethrough.
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12. A guide knife for inserting a filtering member into an eye, comprising:
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a handle portion; a blade portion projecting distally from a distal end of said handle portion, said blade portion terminating distally in a sharp distal end, said blade portion having first and second major side surfaces; a flange element having proximal and distal ends and first and second generally parallel, major side faces, said flange element being coupled to one of said blade portion and said handle portion and extending distally in side by side generally parallel relation to said blade portion such that the first major side face thereof is in parallel, opposed facing relation to said first major side surface of said blade portion so as to define a filtering member receiving space therebetween; and wherein the flange has a maximum width measured across the widest portion of one of the major side faces which is smaller than a maximum width of the blade measured across the widest portion of one of the major side surfaces. - View Dependent Claims (13)
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Specification