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US 10,226,419 B2Granted
Methods for manufacturing implants
AssigneeProMed Pharma, LLC
InventorsJames H. Arps, Matthew Petersen
Life of this patent
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Abstract
Pharmacologically active implants, in particular subcutaneous implants, intrauterine devices, and intravaginal rings, are provided herein. Methods for forming an active ingredient-containing core are described. Methods for laminating an active ingredient-containing core to form a rate-controlling sheath are also described.
Claims12
A method of forming a rate-controlling release membrane over a pharmacologically active ring-shaped core, the method comprising:
- positioning the ring-shaped core between two layers of film;
- applying one or more of heat and pressure to the core and film layers such that each film layer mechanically combines with one or more of the ring-shaped core and the other film layer;
- and
- trimming excess film to form a sheath having a substantially uniform thickness.
1 more element
Dependencies are inferred from the claim text.