Iris fixated intraocular lens and instrument for attaching same to an iris
First Claim
1. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
- a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws connected for gripping said fixation loop;
d. an enclavation needle tip projecting from said insertion portion open distal end for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap;
e. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions.
1 Assignment
0 Petitions
Accused Products
Abstract
An iris fixated intraocular lens for implanting in the anterior chamber of an eye comprises an optic having an optical axis and anterior and posterior sides; and first and second fixation members, each of the fixation members having a proximal end region and a distal end region. The proximal end region of each fixation member is a single flexible strand fixed to an edge region of the optic to extend generally tangentially outwardly therefrom and the distal end region is formed into a loop having defined therein at least one narrow iris pincher gap for detachably attaching the intraocular lens to the anterior surface of the iris. The first and second fixation members are substantially identical to one another and are attached to the optic on opposite sides of the optical axis. The optic is preferably constructed from an elastically deformable plastic material, such as silicone or an acrylic, so that the resulting three-piece intraocular lens can be folded or otherwise deformed for implanting into an eye through a small, preferably sutureless, surgical incision. Variation IOLs are disclosed, such variations relating to iris pincer gaps. A combination enclavation needle and forceps instrument, capable of one-handed use, is also disclosed. The instrument may be primarily electrically or mechanically operated.
174 Citations
30 Claims
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1. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws connected for gripping said fixation loop;
d. an enclavation needle tip projecting from said insertion portion open distal end for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap;
e. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions. - View Dependent Claims (2, 3, 4)
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5. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws connected for gripping said fixation loop;
d. an enclavation needle tip projecting from said insertion portion open distal end for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap, said needle tip having an axial helical shape with a sharp distal end; and
e. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions.
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6. The combination forceps and enclavation needle instrument as claimed in claimed 5, wherein said operating and control means include means for simultaneously moving said needle tip in an axial direction and for rotating said needle tip.
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7. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws connected for gripping said fixation loop;
d. an enclavation needle tip projecting from said insertion portion open distal end for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap; and
e. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions, said operating and control means including an electric power source, a plurality of reversible electric motors and a plurality of electrical switches connected for providing electrical power to said motors from said power source. - View Dependent Claims (8, 9)
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10. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws connected for gripping said fixation loop;
d. an enclavation needle tip projecting from said insertion portion open distal end for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap; and
e. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions, said operating and control means including a plurality of manually operated thumb wheels. - View Dependent Claims (11)
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12. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws connected for gripping said fixation loop;
d. an enclavation needle tip projecting from said insertion portion open distal end for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap; and
e. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions, said operating and control means including a first, elongate slender control pin connected to said needle tip and a second, elongate slender control pin pivotally connected to one of said forceps tip jaws. - View Dependent Claims (13)
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14. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end and having an outer tubular member, c. a forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws, said first jaw being fixed and said second jaw being connected for movement between an open and a closed position relative to said first jaw;
d. an enclavation needle tip projecting from said insertion portion open distal end;
e. means for detachably connecting said insertion portion, including said needle tip and said forceps tip, to said handle portion;
f. operating and control means connected for selectively causing said second forceps jaw to move between said open and closed positions and for selectively moving said needle tip between a lifted position and a lowered position and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A combination forceps and enclavation needle instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of an ocular iris, said fixation loop being formed having a narrow pincer gap and having thickened end regions, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end and having an exterior tubular member and a major cross sectional dimension no greater than about 2.5 mm;
c. forceps tip projecting from said insertion portion open distal end, said forceps tip having first and second IOL gripping jaws said forceps tip jaws being sized for gripping said fixation loop thickened end regions;
d. an enclavation needle tip projecting from said insertion portion open distal end, said needle tip being shaped for engaging iris tissue and for lifting said engaged iris tissue into said fixation loop pincer gap;
e. means for detachably connecting said insertion portion, including said needle tip and said forceps tip, to said handle portion;
f. operating and control means connected for selectively causing said forceps tip jaws to open and close, for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions. - View Dependent Claims (24, 25, 26, 27)
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28. A hand held instrument for use in attaching a fixation loop of an anterior chamber intraocular lens (IOL) to an anterior surface of a human ocular iris, said fixation loop having a narrow iris tissue pincer gap defined therein, said instrument comprising:
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a. a handle portion sized for being held in one hand of a user;
b. a slender ocular insertion portion having an open distal end, said insertion portion being connected to said handle portion;
c. an enclavation needle tip projecting from said insertion portion open distal end, said needle being configured for engaging iris tissue and for lifting said engaged iris tissue into said pincer gap; and
d. operating and control means connected for selectively moving said needle tip between a lifted position and a lowered position, and for selectively causing partial rotation of said needle tip in clockwise and counterclockwise directions. - View Dependent Claims (29, 30)
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Specification