Catheter tubing with tailored modulus response
US10596302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2017 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Aug 12, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Catheter tubing comprises: an elongate body comprising a base thermoplastic polyurethane; and a compounded thermoplastic polyurethane co-extruded with the base thermoplastic polyurethane to provide a section of catheter tubing discrete from the elongate body, the compounded thermoplastic polyurethane comprising a thermoplastic polyurethane and a radiopaque material, wherein the catheter tubing comprises a first elastic modulus under first conditions prior to entry into a patient; and wherein when exposed to second conditions comprising two or more in vivo stimuli for a duration of time the catheter tubing comprises a second elastic modulus that is not more than fifty percent of the first modulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.