Title:
PRESERVATIVE REMOVAL FROM EYE DROPS
Document Type and Number:
WIPO Patent Application WO/2020/223527
Kind Code:
A3
Abstract:
A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of oxidized polyolefin (OxPO). The microparticles are irregular-shaped rigid aggregates and are sized and packed to yield a hydraulic permeability greater than 0.01 Da. The OxPO have absorbed portions of a preservative to be removed and/or a drug for delivery in solution, as can the copolymer.
Inventors:
WILSON MICHAEL (US)
WILLIAMS MICHAEL (US)
HAY DENIZ (US)
MALANGA MICHAEL (US)
WILLIAMS MICHAEL (US)
HAY DENIZ (US)
MALANGA MICHAEL (US)
Application Number:
PCT/US2020/030801
Publication Date:
April 29, 2021
Filing Date:
April 30, 2020
Export Citation:
Assignee:
TEARCLEAR CORP (US)
International Classes:
A61J1/14; B01D15/00; B01J20/30
Domestic Patent References:
| WO2019060846A1 | 2019-03-28 | |||
| WO2005066219A1 | 2005-07-21 | |||
| WO2018102817A1 | 2018-06-07 |
Foreign References:
| US20100285192A1 | 2010-11-11 | |||
| US20130127071A1 | 2013-05-23 | |||
| US20100305259A1 | 2010-12-02 | |||
| US20170224531A1 | 2017-08-10 | |||
| US5056689A | 1991-10-15 |
Other References:
ANONYMOUS: "Polyethylene waxes, technical data", DEUREX THE WAX COMPANY, 2020, pages 1 - 8, XP055867778, Retrieved from the Internet
ANONYMOUS: "Licolub(R) H 12 fine grain. Oxidized, high density polyethylene wax", CLARIANT INTERNATIONAL LTD., pages 2, XP009531802
ANONYMOUS: "Licolub(R) H 12 fine grain. Oxidized, high density polyethylene wax", CLARIANT INTERNATIONAL LTD., pages 2, XP009531802
Attorney, Agent or Firm:
ELKINS, Madeline H. (US)
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