Embodiments of the present disclosure are directed to perforated polymer films and methods of making the same. In some embodiments, the films are for use with implantable medical devices. In one embodiment there is a flexible body including a polymer film having a first surface and an opposing second surface, the film having a plurality of apertures extending from the first surface to the second surface and a plurality of raised lips protruding from the first surface such that each of the plurality of apertures is surrounded by a one of the plurality of raised lips. In one embodiment, the film comprises a single layer, and in another embodiment, the film can comprise a plurality of layers. In certain embodiments, the film can comprise an adhesive layer. In another embodiment, one or more of the layers may be a drug containing layer and/or a rate controlling layer for drug release.本揭示之實施例係針對多孔聚合物薄膜及其製作方法。在一些實施例中，薄膜係配合植入式醫療裝置使用。在一實施例中，有一種撓性體，其包括一具有一第一表面及一相對第二表面之聚合物薄膜，該薄膜具有複數個從該第一表面延伸至該第二表面的孔隙、以及複數個從該第一表面突出的隆起端緣，使得各該複數個孔隙係由該複數個隆起端緣之一者所包圍。在一實施例中，薄膜包含一單一層，且在另一實施例中，薄膜可包含複數層。在特定實施例中，薄膜可包含一黏著劑層。在另一實施例中，一或多個該等層可為一含藥物層及/或一用於藥物釋出之速率控制層。
