Implantable biocompatible expander suitable for treatment of constrictions of body lumen

US10881539B2 · kind B2 · utility

Assignee

• THE PROVOST, FELLOWS, FOUNDATION SCHOLARS, & THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY & UNDIV. TRINITY OF QUEEN ELIZABETH, NEAR DUBLIN · IE

Inventors

• Conor Harkin · Dublin, IE
• Garrett Ryan · Sydney, AU
• Bruce Murphy · Dublin, IE
• James Redmond · Ennis, IE

Key dates

• Filing date: Nov 14, 2016
• Grant date: Jan 5, 2021
• Expiry date: Mar 5, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0067
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An implantable biocompatible expander suitable for implantation into a urinary duct, comprises an elongated sinusoidal ring comprising at least two proximal prongs and at least two distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander is configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.