发明名称 |
Para-xylene films and therapeutic uses thereof |
摘要 |
The present invention provides single sheet and compound para-xylene films for therapeutic uses. For example, the present invention provides single sheet para-xylene films useful as tissue separators and/or adhesion barriers in a subject, where the top and/or bottom surfaces of such films have a water contact angle between 75 and 95 degrees (e.g., to prevent adhesion formation). The present invention also provides compound films composed of at least two para-xylene polymer films with a therapeutic molecule layer in between. Such compound films, when used in vivo (e.g., as a tissue separator and to treat inflammation or atrial fibrillation) allow either therapeutic molecule elution through one of the para-xylene layers, or therapeutic molecule release when the compound film is pierced, such as when it is sutured in place. |
申请公布号 |
US9301927(B2) |
申请公布日期 |
2016.04.05 |
申请号 |
US201414283819 |
申请日期 |
2014.05.21 |
申请人 |
Northwestern University;University of Maryland, Baltimore;Ann & Robert H. Lurie Children's Hospital of Chicago |
发明人 |
Ho Dean;Robinson Erik M.;Kaushal Sunjay;McCarthy Patrick M. |
分类号 |
A61L31/06;A61L31/08;A61L31/10;C08L65/04;A61L29/08;A61K9/70 |
主分类号 |
A61L31/06 |
代理机构 |
Casimir Jones, S.C. |
代理人 |
Casimir Jones, S.C. |
主权项 |
1. An article of manufacture consisting essentially of: a polymer film with a top surface and a bottom surface,
wherein said polymer film consists essentially of a para-xylene polymer, wherein said polymer film has a thickness between 1 μm and 75 μm, wherein substantially all of said top surface has a water contact angle between 75 and 95 degrees and is non-adherent to tissue, wherein substantially all of said bottom surface has a water contact angle between 75 and 95 degrees and is non-adherent to tissue, and wherein said polymer film is sterilized and sized to serve as a tissue separator and/or adhesion barrier in a subject. |
地址 |
Evanston IL US |