Patent · US Active

Cryotherapeutic devices having integral multi-helical balloons and methods of making the same

US9095321B2 · kind B2 · utility

8Cited by

381References

15Claims

0Family size

Assignee

MEDTRONIC ARDIAN LUXEMBOURG S.A.R.L. · LU

Inventors

Jim Phelan · Galway, IE
Stephen Nash · Galway, IE

Key dates

Filing date	Nov 21, 2012
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Dec 5, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2018/0287
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A cryotherapeutic device having an integral multi-helical balloon section and methods of making the same. A method of forming the cryotherapeutic device can include forming an extruded integral shaft having first and second substantially parallel lumens. The method can further include twisting a distal section of the shaft such that the first and second lumens form intertwined helical portions. The first and second helical portions can be plastically enlarged to form an inflatable body configured to deliver therapeutically effective cryogenic cooling to a treatment site.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.