AU2008201049A1 - Lens delivery system - Google Patents
Lens delivery system Download PDFInfo
- Publication number
- AU2008201049A1 AU2008201049A1 AU2008201049A AU2008201049A AU2008201049A1 AU 2008201049 A1 AU2008201049 A1 AU 2008201049A1 AU 2008201049 A AU2008201049 A AU 2008201049A AU 2008201049 A AU2008201049 A AU 2008201049A AU 2008201049 A1 AU2008201049 A1 AU 2008201049A1
- Authority
- AU
- Australia
- Prior art keywords
- injector body
- plunger
- delivery system
- gate
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 210000004087 cornea Anatomy 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Landscapes
- Prostheses (AREA)
Description
d
AUSTRALIA
Patents Act COMPLETE SPECIFICATION
(ORIGINAL)
Class Int. Class Application Number: Lodged: Complete Specification Lodged: Accepted: Published: Priority Related Art: Name of Applicant: Alcon Manufacturing Ltd.
Actual Inventor(s): David A Downer Address for Service and Correspondence: PHILLIPS ORMONDE FITZPATRICK Patent and Trade Mark Attorneys 367 Collins Street Melbourne 3000 AUSTRALIA Invention Title: LENS DELIVERY SYSTEM Our Ref: 823839 POF Code: 453863/457655 The following statement is a full description of this invention, including the best method of performing it known to applicant(s): -1- 0 ooeq 00
O
O
LENS DELIVERY SYSTEM S This application claims priority from US Application No. 11/682,622 filed on 6 March i 2007, the contents of which are to be taken as incorporated herein by this reference.
O
This invention relates to intraocular lenses (IOLs) and more particularly to devices 0use to inject TOLs into an eye.
Background of the Invention 00 The human. eye in its simplest terms functions to provide vision by transmitting and refracting light through a clear outer portion called the cornea, and further focusing the image by way of the lens onto the retina at the back of the eye. The quality of the focused image depends on many factors including the size, shape and length of the eye, and the shape and transparency of the cornea and lens.
When trauma, age or disease cause the lens to become less transparent, vision deteriorates because of the diminished light which can be transmitted to the retina. This is deficiency in the lens of the eye is medically known as a cataract. The treatment for this condition is surgical removal of the lens and implantation of an artificial lens or IOL.
While early JOLs were made from hard plastic, such as polymethylmethacrylate (PMMA), soft, foldable IOLs made from silicone, soft acrylics and hydrogels have become increasingly popular because of the ability to fold or roll these soft lenses and insert them through a smaller incision. Several methods of rolling or folding the lenses are used. One popular method is an injector cartridge that folds the lenses and provides a relatively small diameter lumen through which the lens may be pushed into the eye, usually by a soft tip plunger. The most commonly used injector cartridge design is illustrated in U.S. Patent No. 4,681,102 (Bartell), and includes a split, longitudinally hinged cartridge. Similar designs are illustrated in U.S. Patent Nos. 5,494,484 and 5,499,987 (Feingold) and 5,616,148 and 5,620,450 (Eagles, et In an attempt to avoid the claims of U.S. Patent No. 4,681,102, several solid cartridges have been investigated, see for example U.S. Patent No. 5,275,604 (Rheinish, et al.) and 5,653,715 (Reich, et al.).
These devices all require that the lens be shipped separately from the cartridge.
This requires that the lens be removed from its shipping container and placed in the cartridge prior to use. This requires additional handling of the lens, with the resulting potential for damage to the lens. Two prior art devices, disclosed in U.S. Patent No.
6,471,708 B1 (Green) and 7,156,854 (Brown, et al.) disclose lens delivery systems that is also suitable for use as a lens shipment container as well as a delivery device. As Page 1A 00 SRe: 3235 US t recognized in U.S. Patent Number 7,156,854, during shipment, the plunger can be inadvertently moved forward, which can adversely affect the lens. Accordingly, a need continues to exist for a combination lens shipment device and delivery system.
s Brief Summary of the Invention 00 The present invention improves upon prior art by providing a combination lens packaging/shipment container and delivery system having a plunger, an injector body and Ca nozzle portion connected to the injector body. A sliding gate is attached to a flange located on the proximal end of the injector body. The gate engages a receptor slot in the plunger and prevents movement of the plunger until released.
It is accordingly an object of the present invention to provide a lens delivery system suitable for the storage, shipment and delivery of a lens into an eye without the use of any additional devices.
It is a further object of the present invention to provide a lens delivery system that is suitable for folding lenses made from a soft acrylic material.
It is a further object of the present invention to provide a lens delivery system having a slidable gate that limits movement of the plunger during storage and shipment.
Other objects, features and advantages of the present invention will become apparent with reference to the drawings, and the following description of the drawings and claims.
Brief Description of the Drawings FIG. 1 is an enlarged perspective view of a first embodiment of the lens delivery system of the present invention.
FIG. 2 is an enlarged partial perspective view of the proximal end of a first embodiment of the lens delivery system of the present invention looking distally.
FIG. 3 is an enlarged partial side elevational view of the proximal end of a first embodiment of the lens delivery system of the present invention.
FIG. 4 is an enlarged partial perspective view of the proximal end of the lens delivery system of the present invention looking proximally.
FIG. 5 is an enlarged top plan view of a gate that may be used with the lens delivery system of the present invention.
Page 2 00 SRe: 3235 US FIG. 6 is an enlarged end elevational view of a first embodiment of a gate that may be used with the lens delivery system of the present invention.
FIG. 7 is an enlarged partial perspective view of the proximal end of a second embodiment of the lens delivery system of the present invention looking distally.
Detailed Description of the Preferred Embodiments 00 As best seen in FIGS. 1-3, lens delivery system 10 of the present invention generally includes nozzle portion 12, injector body 14 and plunger 16. Nozzle portion 12, body 14 and plunger 16 can be molded from any suitable thermoplastic, such as polypropylene, and the thermoplastic may contain a lubricity enhancing agent such as those disclosed in U.S. Pat. No. 5,716,364, the entire contents of which are incorporated herein by reference. Alternatively, nozzle portion 12 may be integrally formed with body 14. Nozzle portion 12 contains distal nozzle 22 that is preferably is round, oval or is elliptical in cross-section and has a cross-sectional area of between around 1.0 mm 2 to around 2.6 mm 2 Injector body 14 contains at least one finger flange 18. As best seen in FIG. 4, finger flange 18 contains at least one slot 20 that has the function described below. Plunger 16 generally consists of plunger rod 26 connected to proximally located plunger cap 24 that cooperates with finger flange 18 to provide a means to reciprocate plunger 16 within body 14 in a manner similar to the operation of a syringe.
As best seen in FIGS. 5 and 6, gate 28 is of similar size and shape as finger flange 18 and contains at least one snap-locking tab 30 that are sized and shaped to fit within slot(s) 20 of finger flange 18, but tabs 30 are slightly shorter than slots 20. Gate 28 may also contain knurling 32 or other texturing opposite tabs 30 to provide the user with a more positive grip.
In use, tabs 30 on gate 28 are snapped into place within slots 20 on finger flange 18 so as to hold gate 28 against finger flange 18. Tabs 30, being shorter than slot(s) allow gate 28 to slide upon finger flange 18 within slot(s) 20. Plunger 16 is inserted into body 14 so that receptor notch 34 on plunger rod 26 is aligned with gate 28, as seen in FIG. 3. Gate 28 is pushed downward toward plunger rod 26 until gate 28 engages receptor notch 34, as seen in FIG. 1. Once engaged with receptor notch 34, gate 28 prevent further movement of plunger rod 26 and plunger 16. To release plunger 16, gate 28 is pushed in the opposite direction until gate 28 is once again clear of receptor notch 34.
Page 3 00 SRe: 3235 US In Alternatively, as seen in FIG. 7, gate 28' may contain notch 55 sized and shaped O to fit over web 59 on plunger rod 26'. Ribs 61 on plunger rod 26' engage gate 28' and prevent movement of plunger rod 26'. Rib of ribs 61 can be placed at any desired location along plunger rod 61.
While celrtain embodiments of the present invention have been described above, these descriptions are given for purposes of illustration and explanation. Variations, 00 changes, modifications and departures from the systems and methods disclosed above may be adopted without departure from the scope or spirit of the present invention.
Page 4
Claims (3)
- 2. The lens delivery system of claim 1 wherein the gate engages the notch in the plunger rod.
- 3. An intraocular lens delivery system, comprising: a) a injector body having a hollow interior, the injector body further having a nozzle portion having a hollow interior received on the distal end of the injector body; b) at least one finger flange located at a proximal end of the injector body opposite the nozzle portion, the finger flange having at least one slot; c) a plunger adapted to reciprocate within the hollow interior of the injector body, the plunger having a plunger rod and at least one rib; and d) a gate having at least one tab and a notch, the tab sized and shaped to be received within the slot so as to slidably retain the gate against the finger flange.
- 4. The lens delivery system of claim 1 wherein the notch on the gate engages the rib on the plunger rod. An intraocular lens delivery system, comprising: a) a injector body having a hollow interior, the injector body further having a nozzle portion having a hollow interior received on the distal end of the injector body; Page 00 Re: 3235 US it b) at least one finger flange located at a proximal end of the injector body opposite the nozzle portion, the finger flange having at least one slot; c) a plunger adapted to reciprocate within the hollow interior of the injector body, the plunger having a plunger rod; and 0 5 d) a slidable gate for engaging the plunger rod and preventing movement of the plunger rod. 00 Page 6
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38262207A | 2007-03-06 | 2007-03-06 | |
| US11/382,622 | 2007-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2008201049A1 true AU2008201049A1 (en) | 2008-09-25 |
Family
ID=39796920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2008201049A Abandoned AU2008201049A1 (en) | 2007-03-06 | 2008-03-05 | Lens delivery system |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2008201049A1 (en) |
-
2008
- 2008-03-05 AU AU2008201049A patent/AU2008201049A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK5 | Application lapsed section 142(2)(e) - patent request and compl. specification not accepted |