Invention Grant
- Patent Title: Viscoelastic medical article
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Application No.: US15103898Application Date: 2014-12-09
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Publication No.: US10888463B2Publication Date: 2021-01-12
- Inventor: Joseph D. Rule , Naimul Karim , John J. Rogers , Guido Hitschmann
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN Saint Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN Saint Paul
- Agency: 3M IPC
- International Application: PCT/US2014/069209 WO 20141209
- International Announcement: WO2015/094792 WO 20150625
- Main IPC: A61F13/02
- IPC: A61F13/02 ; A61F13/00 ; A61F13/08

Abstract:
A medical article and methods of using same. The medical article can include a machine direction (MD) and a cross-machine direction (CMD); a support layer; and a viscoelastic layer. The viscoelastic layer can be coupled to the support layer, and the viscoelastic layer can be discontinuous in the MD and/or the CMD. The viscoelastic layer can recover at least 70% of its deformation after 48 hours at room temperature after being strained to 50% elongation, such that the medical article has a first tensile stiffness T1 at a first strain rate S1, and a second tensile stiffness T1 at a second strain rate S1. The ratio of S1/S2 can be at least 100, and the ratio of T1/T2 can be at least 1.5. The method can include wrapping the medical article around a body part; applying the first strain rate S1; and applying the second strain rate S2.
Public/Granted literature
- US20160310327A1 VISCOELASTIC MEDICAL ARTICLE Public/Granted day:2016-10-27
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