Nasolacrimal drainage system implants for drug therapy

A technology of implants and therapeutic agents, applied in the field of implants, can solve problems such as blindness, vision loss in patients, and implants without drugs being delivered.

Active Publication Date: 2009-08-12
MATI THERAPEUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this approach may provide some improvement over eye drops, some potential issues with this approach may include implantation of the implant at the desired tissue site, retention of the implant at the desired tissue site, and drug delivery in the desired tissue site. Sustaine...

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  • Nasolacrimal drainage system implants for drug therapy
  • Nasolacrimal drainage system implants for drug therapy
  • Nasolacrimal drainage system implants for drug therapy

Examples

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Embodiment Construction

[0079] Picture 1-1 and Figure 1-2 The anatomical structure of the eye 2 suitable for treatment with the implant according to an embodiment of the present invention is represented. The eye 2 includes the cornea 4 and the iris 6 . The sclera 8 surrounds the cornea 4 and the sclera 6 and appears white. The conjunctival layer 9 is substantially transparent and lies over the sclera 8 . The lens 5 is located in the eye. The retina 7 is located near the back of the eye 2 and is generally sensitive to light. The retina 7 includes the fovea 7F which provides high visual acuity and color vision. The cornea 4 and the lens 5 refract light to form an image on the fovea 7F and the retina 7 . The optical power of the cornea 4 and lens 5 facilitates image formation on the fovea 7F and retina 7 . The relative positions of the cornea 4, lens 5 and fovea 7F are also important for image quality. For example, eye 2 may be myopic if eye 2 grows from the axis of cornea 4 to retina 7F. Furt...

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Abstract

Implant devices, systems and methods for insertion into a punctum of a patient optionally comprises a drug core and a sheath body disposed over the drug core. The drug core includes a therapeutic agent deliverable into the eye, and the sheath defines at least one exposed surface of the drug core. The exposed surface(s) of the drug core may contact a tear or tear film fluid and release the therapeutic agent at therapeutic levels over a sustained period when the implant is implanted for use. The implant may include a retention element to retain the drug core and sheath body near the punctum, optionally comprising a shape memory alloy that can resiliently expand. An occlusive element may be attached to the retention element to at least partially occlude tear flow through the canalicular lumen.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Provisional Application No. 60 / 787,775, filed March 31, 2006, and US Provisional Application No. 60 / 871,864, filed December 26, 2006, under 35 USC 119(e), all of which are The disclosure is incorporated herein by reference. technical field [0003] The present application relates to implants for use in or around a nasolacrimal drainage system, and in particular provides lacrimal canaliculus implants, lacrimal sac implants, lacrimal plugs, and lacrimal plugs with drug delivery capabilities. Background technique [0004] In the field of ocular drug delivery, patients and physicians face various challenges. Specifically, the reproducibility of treatment (multiple injections per day, multiple eye drop regimens per day), associated costs, and lack of patient compliance can significantly impact the possible treatment outcomes, leading to vision loss, many times Can cause blindness. ...

Claims

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Application Information

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IPC IPC(8): A61F2/02
CPCA61K31/5575A61F2250/0067A61F9/00772A61K9/0051A61K47/34A61F9/0017A61F9/0026
Inventor 小尤金·德朱昂斯蒂芬·博伊德卡里·赖希艾伦·拉帕茨基汉森·S·吉福德马克·迪姆
Owner MATI THERAPEUTICS
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