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Alternate Strength Member

IP.com Disclosure Number: IPCOM000241442D
Publication Date: 2015-Apr-27
Document File: 1 page(s) / 141K

Publishing Venue

The IP.com Prior Art Database

Abstract

For the FFR guidewire, a ribbon, round coil, or braid can be mounted on the ID of the high torque sleeve encapsulating the fiber optic sensor shaft providing an additional strength member in the device.

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Title

Alternate Strength Member

Abstract

For the FFR guidewire, a ribbon, round coil, or braid can be mounted on the ID of the high torque sleeve

encapsulating the fiber optic sensor shaft providing an additional strength member in the device.

The outer high torque sleeve (HTS) is acting as the tensile bearing member in the FFR device. The fiber opticalong the ID of the HTS is made of glass and is not used as a tensile bearing member, it is used to sense thepressure changes in the lesion. This invention provides a safety wire that increases the ability of the guidewireto withstand the forces introduced during a typical cath lab procedure.

A secondary load bearing member (rectangular or round coil, braid, or single wire) can be loaded inside theHTS. The secondary member is attached to the ID of the HTS in 2 or more locations. If the HTS would break,the secondary member would act as an additional load bearing member allowing the wire to remain in onepiece.

This design relates to the FFR wire, as this is the only wire that does not have a solid core wire along the ID of the device.