US 12,295,811 B2
Ligature device and method of use
Richard N. Terry, Conyers, GA (US); Merle E. Olson, Calgary (CA); and Nicholas D. Allan, Victoria (CA)
Assigned to Chinook Contract Research Inc., (CA)
Filed by Chinook Contract Research Inc., Victoria (CA)
Filed on Oct. 14, 2022, as Appl. No. 17/966,722.
Application 17/966,722 is a continuation of application No. 16/638,120, granted, now 11,596,510, previously published as PCT/US2018/046150, filed on Aug. 9, 2018.
Claims priority of provisional application 62/544,662, filed on Aug. 11, 2017.
Prior Publication US 2023/0104037 A1, Apr. 6, 2023
Int. Cl. A61D 7/00 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01); A61D 1/04 (2006.01); A61D 1/06 (2006.01); A61K 31/167 (2006.01)
CPC A61D 7/00 (2013.01) [A61B 17/12009 (2013.01); A61D 1/04 (2013.01); A61D 1/06 (2013.01); A61K 31/167 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00889 (2013.01); A61B 2017/00893 (2013.01); A61B 2017/12018 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A ligation band configured for topical control of pain in a livestock animal during bloodless male castration or docking of the livestock animal, the ligation band comprising:
an elastomeric material in a form of a round band or an elongate round tube for contact with an external body part of the livestock animal, said elastomeric material infused with and coated on its outer surfaces with one or more anesthetics and a skin permeation enhancer or a skin penetration enhancer.