Cataract posterior/wedge chopper
First Claim
1. A chopper apparatus for performing a cataract surgery, the apparatus comprising:
- a chopping member that is elongated and bent near a distal end of the chopping member, the chopping member comprising;
a wedge portion comprising a bend in the chopping member,an arm portion extending proximally from a first side of the wedge portion of the chopping member, the arm portion terminating in a handle portion configured to be held by a user when performing the cataract surgery on a patient,a forearm portion extending proximally from a second side of the wedge portion of the chopping member, the forearm terminating at the distal end of the chopping member, the distal end being configured to be placed into an eye of the patient by the user when performing the cataract surgery,a wedge paddle formed at the wedge portion of the chopping member, the wedge paddle extending laterally on either side of the chopping member to form a scoop design for scooping a cataract in the eye of the patient,wherein the wedge paddle extends along the forearm portion of the chopping member to the distal end of the chopping member, the wedge paddle increasing a surface area of the forearm portion, andwherein the bend of the wedge portion comprises an angle of 110 degrees or less between the arm portion and the forearm portion of the chopping member.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed here is an apparatus and method for cataract surgery. The apparatus is an instrument referred to as a chopper that allows the reduction or elimination of ultrasound and/or laser energy introduced into the eye during cataract surgery. The chopper instrument is bent at an angle, such as an angle less than 110 degrees or less than 90 degrees, to provide a posterior (to anterior) chopping, and a wedge compression of the cataract. The bend in the chopper instrument, among other features, introduces refined vector forces that help in breaking/chopping the cataract with ease. The apparatus allows laser free/ultrasound free cataract extraction in dense cataracts. The chopper apparatus, a vacuum-tip and the proper vacuum settings, when used for performing a cataract surgery by a surgeon, allows the surgeon to break up the nucleus into small enough fragments that a true ultrasound-free/laser-free small incision cataract surgery can be accomplished with ease.
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Citations
20 Claims
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1. A chopper apparatus for performing a cataract surgery, the apparatus comprising:
a chopping member that is elongated and bent near a distal end of the chopping member, the chopping member comprising; a wedge portion comprising a bend in the chopping member, an arm portion extending proximally from a first side of the wedge portion of the chopping member, the arm portion terminating in a handle portion configured to be held by a user when performing the cataract surgery on a patient, a forearm portion extending proximally from a second side of the wedge portion of the chopping member, the forearm terminating at the distal end of the chopping member, the distal end being configured to be placed into an eye of the patient by the user when performing the cataract surgery, a wedge paddle formed at the wedge portion of the chopping member, the wedge paddle extending laterally on either side of the chopping member to form a scoop design for scooping a cataract in the eye of the patient, wherein the wedge paddle extends along the forearm portion of the chopping member to the distal end of the chopping member, the wedge paddle increasing a surface area of the forearm portion, and wherein the bend of the wedge portion comprises an angle of 110 degrees or less between the arm portion and the forearm portion of the chopping member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A chopper apparatus for performing a cataract surgery, the apparatus comprising:
a chopping member that is elongated and bent near a distal end of the chopping member, the chopping member comprising; a wedge portion comprising a bend in the chopping member, an arm portion extending proximally from a first side of the wedge portion of the chopping member, the arm portion terminating in a handle portion configured to be held by a user when performing the cataract surgery on a patient, a forearm portion extending proximally from a second side of the wedge portion of the chopping member, the forearm terminating at the distal end of the chopping member, the distal end being configured to be placed into an eye of the patient by the user when performing the cataract surgery, a wedge paddle formed at the wedge portion of the chopping member, the wedge paddle extending laterally on either side of the chopping member to form a scoop design for scooping a cataract in the eye of the patient, wherein the wedge paddle extends along part of the arm portion of the chopping member, the wedge paddle increasing a surface area of the arm portion, and wherein the bend of the wedge portion comprises an angle of 110 degrees or less between the arm portion and the forearm portion of the chopping member. - View Dependent Claims (13, 14, 15, 16)
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17. A chopper apparatus for performing a cataract surgery, the apparatus comprising:
a chopping member that is elongated and bent near a distal end of the chopping member, the chopping member comprising; a wedge portion comprising a bend in the chopping member, an arm portion extending proximally from a first side of the wedge portion of the chopping member, the arm portion terminating in a handle portion configured to be held by a user when performing the cataract surgery on a patient, a forearm portion extending proximally from a second side of the wedge portion of the chopping member, the forearm terminating at the distal end of the chopping member, the distal end being configured to be placed into an eye of the patient by the user when performing the cataract surgery, a wedge paddle formed at the wedge portion of the chopping member, the wedge paddle extending laterally on either side of the chopping member to form a scoop design for scooping a cataract in the eye of the patient, wherein the wedge paddle extends along both the forearm portion of the chopping member and the arm portion of the chopping member, the wedge paddle increasing a surface area of the arm and forearm portions, and wherein the bend of the wedge portion comprises an angle of 110 degrees or less between the arm portion and the forearm portion of the chopping member. - View Dependent Claims (18, 19, 20)
Specification