Handpiece tip
First Claim
Patent Images
1. A tip for a handpiece for use in an ophthalmic lens removal procedure, comprising:
- an inner tube mounted within an outer tube so as to form an annular gap between the inner tube and the outer tube; and
a tip cap sealing distal ends of the inner tube and the outer tube, the tip cap having an aspiration port in fluid communication with the inner tube, and an irrigation port in fluid communication with the annular gap and wherein a centerline of the aspiration port is offset at an angle relative to a centerline of the outer tube and a centerline of the irrigation port is offset relative to a centerline of the outer tube;
wherein the tip cap comprises a cylindrical side surface and a rounded outer distal surface on an end of the cylindrical side surface and is configured to direct fluid onto the lens from the irrigation port and aspirate fluid from the lens through the aspiration port;
wherein the aspiration port is a hole in the rounded outer distal surface; and
wherein the irrigation port is another hole in the rounded outer distal surface;
wherein the irrigation port is configured to provide irrigation and the aspiration port is configured to provide aspiration for the ophthalmic lens removal procedure.
3 Assignments
0 Petitions
Accused Products
Abstract
A tip for a surgical handpiece having two coaxial tubes or channels mounted within a body. The tip has one or more features that shape the fluid discharge so as to optimize the performance of the handpiece for varying parts of the surgical procedure.
-
Citations
19 Claims
-
1. A tip for a handpiece for use in an ophthalmic lens removal procedure, comprising:
-
an inner tube mounted within an outer tube so as to form an annular gap between the inner tube and the outer tube; and a tip cap sealing distal ends of the inner tube and the outer tube, the tip cap having an aspiration port in fluid communication with the inner tube, and an irrigation port in fluid communication with the annular gap and wherein a centerline of the aspiration port is offset at an angle relative to a centerline of the outer tube and a centerline of the irrigation port is offset relative to a centerline of the outer tube; wherein the tip cap comprises a cylindrical side surface and a rounded outer distal surface on an end of the cylindrical side surface and is configured to direct fluid onto the lens from the irrigation port and aspirate fluid from the lens through the aspiration port; wherein the aspiration port is a hole in the rounded outer distal surface; and wherein the irrigation port is another hole in the rounded outer distal surface; wherein the irrigation port is configured to provide irrigation and the aspiration port is configured to provide aspiration for the ophthalmic lens removal procedure. - View Dependent Claims (2, 3, 4, 5, 7)
-
-
6. A tip for a handpiece, comprising:
-
an inner tube mounted within an outer tube so as to form an annular gap between the inner tube and the outer tube; and a tip cap sealing distal ends of the inner tube and the outer tube, a distal end of the tip cap having an aspiration port in fluid communication with the inner tube, the aspiration port being smaller in diameter than the inner tube, and the distal end of the tip cap having an irrigation port in fluid communication with the annular gap and wherein a centerline of the aspiration port is offset at an angle relative to a centerline of the outer tube and a centerline of the irrigation port is offset at an angle relative to a centerline of the outer tube; wherein the centerline of the aspiration port is offset at an angle of less than 90 degrees from the centerline of the outer tube; and wherein the centerline of the irrigation port is offset at an angle of less than 90 degrees from the centerline of the outer tube. - View Dependent Claims (8, 9, 10, 11, 12, 16)
-
-
13. A tip for a surgical handpiece for removing a lens during cataract removal surgery, comprising:
-
an inner tube coupled within an outer tube, wherein an annular gap is formed between the inner tube and the outer tube; and a tip cap coupled over distal ends of the inner tube and the outer tube, the tip cap having an aspiration port in fluid communication with the inner tube, and an irrigation port in fluid communication with the annular gap; wherein the tip cap comprises a cylindrical side surface and a rounded outer distal surface on an end of the cylindrical side surface and is configured to direct fluid onto the lens from the irrigation port and aspirate fluid from the lens through the aspiration port; wherein the aspiration port includes at least one hole in the rounded outer distal surface; and
wherein the irrigation port includes at least one other hole in the rounded outer distal surfacer;
wherein the aspiration port is offset at an angle relative to a centerline of the outer tube; and
wherein the irrigation port is offset at an angle relative to a centerline of the outer tube. - View Dependent Claims (14, 15, 17, 18, 19)
-
Specification