US 12,214,148 B2
Multi-lumen drug delivery devices and methods
Heejin Lee, Bedford, MA (US)
Assigned to TARIS Biomedical LLC, Lexington, MA (US)
Filed by TARIS Biomedical LLC, Lexington, MA (US)
Filed on Oct. 20, 2021, as Appl. No. 17/505,897.
Application 17/505,897 is a continuation of application No. 16/070,622, granted, now 11,185,670, previously published as PCT/US2017/015122, filed on Jan. 26, 2017.
Claims priority of provisional application 62/287,193, filed on Jan. 26, 2016.
Prior Publication US 2022/0040461 A1, Feb. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 31/00 (2006.01); A61K 9/00 (2006.01); A61F 2/04 (2013.01)
CPC A61M 31/002 (2013.01) [A61K 9/0004 (2013.01); A61K 9/0034 (2013.01); A61F 2/042 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A drug delivery device for controlled release of drug into the urinary bladder of a patient comprising:
an elongated, elastic body extending between a closed first end and a closed second end, wherein the elastic body comprises a water permeable outer wall structure having a cylindrical shaped external surface extending between the first and second ends;
an elongated hub structure located within, and coaxial with, the outer wall structure and extending between the first and second ends;
two or more spoke structures extending between and connecting the outer wall structure and the hub structure, the spoke, outer wall, and hub structures defining at least one elongate drug reservoir lumen and at least one air lumen; and
a drug payload disposed in the at least one drug reservoir lumen,
wherein the device is elastically deformable between a relatively straightened shape suited for insertion of the device through a urethra and into the urinary bladder of the patient and a coiled retention shape which is suited to retain the device within the urinary bladder.