Intraocular lens delivery devices and methods of use

Abstract

Intraocular lens delivery devices and methods of use.

Claims

1. An intraocular lens loading assembly, comprising: an intraocular lens having an optic portion, a leading haptic, and a trailing haptic; and a loading device having a leading haptic receiving area, an optic receiving area, a trailing haptic receiving area, and a channel proximal to the optic receiving area, the leading haptic receiving area disposed distal to the trailing haptic area, the trailing haptic area extending laterally away from an axis passing through the channel, the optic receiving area, and the leading haptic receiving area, wherein the intraocular lens and the loading device are both configured with surfaces so that, when the leading haptic is positioned in the leading haptic receiving area and extending distally away from the optic portion towards a distal port, the leading haptic is in a deformed state relative to an at-rest configuration, and when the trailing haptic is positioned in the trailing haptic receiving area, the trailing haptic is deformed relative to an at-rest configuration.

2. The loading assembly of claim 1, wherein the assembly is configured to interface with an intraocular lens delivery device.

3. The loading assembly of claim 2 wherein the loading channel is configured to be in communication with a delivery channel within the intraocular lens delivery device.

4. The loading assembly of claim 1 wherein the leading haptic receiving area comprises a tapered portion.

5. The loading assembly of claim 1, the loading device further comprising a first portion and a second portion coupled to the first portion, the second portion configured to be in open and closed positions relative to the first portion.

6. The loading assembly of claim 5 wherein the leading haptic receiving area and the trailing haptic area are disposed in the first portion.

7. The loading assembly of claim 6 wherein the second portion has complimentary leading and trailing haptic receiving areas.

8. The loading assembly of claim 5 wherein the first portion and second portion are coupled at a hinge.

9. The loading assembly of claim 1 wherein the leading haptic receiving area is distal to the optic receiving area.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) A better understanding of the features and advantages of the present disclosure will be obtained by reference to the following detailed description that sets forth illustrative embodiments, in which the principles of the disclosure are utilized, and the accompanying drawings of which:

(2) FIGS. 1A-1C illustrate an exemplary delivery system including a delivery device and cartridge.

(3) FIGS. 2A-2C illustrate an exemplary cartridge and intraocular lens.

(4) FIGS. 3A-3E illustrate an exemplary method of delivering an intraocular lens using the delivery device and cartridge.

DETAILED DESCRIPTION OF THE INVENTION

(5) One aspect of the disclosure is a delivery system including a delivery device adapted to receive a cartridge therein. The cartridge is adapted to receive an intraocular lens. In use, the delivery system delivers the intraocular lens from the cartridge and the delivery device and into an eye.

(6) FIGS. 1A-1C show an exemplary system including delivery device 10 and cartridge 20 disposed therein. An intraocular lens is not show in the cartridge for clarity, and a variety of intraocular lenses could be used with the systems herein. Delivery device 10 includes elongate body 11 extending between proximal portion 22 and distal portion 16. Elongate body 11 is adapted to receive plunger 12 therein, such that device functions similarly to a syringe. Elongate body 11 includes a port extending therethrough, adapted to receive cartridge 20. Device 10 also includes first actuator 14 and second actuator 18, the latter in the form of a trigger. Distal portion 16 is in the form of a nozzle with a distal port from which the intraocular lens is deployed. In this embodiment the distal port has a beveled end. Distal portion 16 is also tapered towards the distal end. The cross section at the distal end is generally elliptical. FIGS. 1B and 1C show side view and bottom views, respectively, of cartridge 20 disposed within device 10.

(7) FIG. 2A illustrates cartridge 20 in an open configuration and adapted to receive an intraocular lens therein. Cartridge 20 is hinged with a first portion 32 and a second portion 34 coupled by any type of hinge 36 (e.g., a living hinge). Cartridge 20 has been formed with an intraocular lens receiving area, which includes an optic portion receiving area 38, leading haptic receiving area 40, and trailing haptic receiving area 42. In some embodiments the cartridge is molded with these areas formed therein. Cartridge also includes channel 56 disposed proximal to the lens receiving area, adapted to receive a portion of delivery system, a fluid, etc., therethrough.

(8) FIG. 2B shows an exemplary intraocular lens disposed within cartridge 20. In this embodiment, intraocular lens includes an optic portion 50 and haptics 52 and 54. Optic 50 has been positioned within optic receiving area 38, haptic 54 has been positioned within leading haptic receiving area 40, and haptic 52 has been positioned within trailing haptic receiving area 42. Haptic 54 is disposed distal to the optic 50, while haptic 52 is positioned generally to the side of optic 50, but could be disposed in any position relative to the optic. For example, haptic 52 could be positioned in a more trailing position if haptic receiving area 42 were formed in such a position.

(9) In this exemplary embodiment, the intraocular lens is a fluid-driven intraocular lens, such as is described in US 2008/0306588, filed Jul. 22, 2008, now U.S. Pat. No. 8,328,869, the disclosure of which is incorporated by reference herein. Optic portion 50 is in fluid communication with haptics 52 and 54. Fluid distribution during delivery and other methods of use that can be incorporated into the systems herein can be found in US 2009/0030425, filed Jul. 23, 2008, the disclosure of which is incorporated by reference herein.

(10) In FIG. 2C, first portion 32 has been closed relative to second portion 34 such that the cartridge is in a closed position, ready to be positioned within delivery device 10. When portion 32 is closed, some of the fluid within the lens may be slightly redistributed within the lens, or it may not be.

(11) FIG. 3A illustrates cartridge 20 with an intraocular lens disposed therein, and delivery device 10, including port 66 adapted to receive cartridge 20 therethrough. Device 10 also includes positioning element 68 adapted to maintain cartridge 20 at a predetermined position with respect to port 66. The positioning element 68 is positioned to align a channel within device 10 with channel 56 in cartridge 20. This allows a fluid, a portion of delivery device, etc., to be advanced through the delivery device and the cartridge to deploy the intraocular lens, as described below.

(12) FIG. 3B shows cartridge 20 advanced through port 66 (which could also be a top port or bottom port) and engaging positioning element 68.

(13) Actuator 70 is then retracted in the proximal direction (P), which activates, or primes, fluid delivery. In FIG. 3D, actuator 18 in the form of a trigger is actuated, causing actuator 70 to be advanced forward, moving a fluid (or mechanical component) through channel 56 in cartridge 20. This causes the intraocular lens to be advanced through cartridge and loaded into the nozzle of device 10. As is it being loaded, the haptics and/or optic are deformed into a delivery configuration. Positioning the haptics as described with respect to FIGS. 2A-2C, the leading haptic is first loaded, followed by the optic, and then by the trailing haptic. This configuration eases the loading on the lens. While actuation of actuator 18 can move a fluid through the system to load the lens, actuating actuator 18 can alternatively or in addition to move a piston or plunger component that engages and pushes the lens into the nozzle. The plunger can be adapted to engage the optic, bypassing the trailing haptic.

(14) In FIG. 3E, plunger 12 is advanced with respect to body 11 and within body 11, causing plunger 80 to be advanced relative to body 11 and to the intraocular lens. This plunger is advanced until it engages with the lens and drives it out of the nozzle and into an eye.

(15) Intraocular lenses with different configurations can be delivered with the cartridges and delivery devices herein, as long as the cartridge is adapted to receive them. For example, the cartridge may need to be molded in a different way to receive a different intraocular lens.

(16) While preferred embodiments of the present disclosure have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the disclosure. It should be understood that various alternatives to the embodiments of the disclosure described herein may be employed in practicing the disclosure.