Systems and methods for making encapsulated hourglass shaped stents

US11304831B2 · kind B2 · utility

Assignee

• V-Wave Ltd. · IL

Inventors

• Nir NAE · Binyamina - Givat Ada, IL
• Lior ROSEN · Or Akiva, IL
• Neal Eigler · Malibu, US
• Erez ROZENFELD · Shoham, IL
• Werner Hafelfinger · Thousand Oaks, US
• Yeela SCOP · Nes Ziona, IL

Key dates

• Filing date: Nov 11, 2020
• Grant date: Apr 19, 2022
• Expiry date: Nov 11, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0082
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and methods for the manufacture of an hourglass shaped stent-graft assembly having an hourglass shaped stent, graft layers, and an assembly mandrel having an hourglass shaped mandrel portion. Hourglass shaped stent may have superelastic and self-expanding properties. Hourglass shaped stent may be encapsulated using hourglass shaped mandrel assembly coupled to a dilation mandrel used for depositing graft layers upon hourglass shaped mandrel assembly. Hourglass shaped mandrel assembly may have removably coupled conical portions. The stent-graft assembly may be compressed and heated to form a monolithic layer of biocompatible material. Encapsulated hourglass shaped stents may be used to treat subjects suffering from heart failure by implanting the encapsulated stent securely in the atrial septum to allow blood flow from the left atrium to the right atrium when blood pressure in the left atrium exceeds that on the right atrium. The encapsulated stents may also be used to treat pulmonary hypertension.