Patent · US Active

Drug loaded microspheres for post-operative chronic pain

US10449152B2 · kind B2 · utility

1Cited by

55References

15Claims

0Family size

Assignee

Covidien LP · US

Inventors

Rachit Ohri · Framingham, US
Gary R. Strichartz · Boston, US
Phillip Blaskovich · Salem, US

Key dates

Filing date	Sep 9, 2015
Grant date	Oct 22, 2019
Priority date	—
Expiry date	Feb 19, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P29/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A microsphere is claimed which includes at least one biodegradable polymer and at least one local anesthetic, wherein about 75% of the at least one local anesthetic is released by about 72 hours and from about 80% to about 90% of the at least one local anesthetic is released by about 120 hours, thereby relieving chronic pain for at least 28 days.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.