US 12,734,054 B2Granted

Stent system deployment apparatus for bifurcated lesion

OwnerKhalid Al-Saadoninventor

Life of this patent

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Abstract

A deployment apparatus and method for deploying one or more stents to a bifurcated vessel is provided. The invention is particularly suited for T-type bifurcated vessels where a side branch extends from a main branch. The deployment apparatus has a primary inflatable portion for engagement within the main branch and a secondary inflatable portion for engagement within the side branch. A main stent is arranged on the primary inflatable portion and radially expanded within the main branch while the secondary inflatable portion maintains registration with the side branch. A side branch stent is then arranged on the secondary inflatable portion and expanded within the side branch while the primary inflatable portion maintains registration with the expanded main stent. A bifurcated stent system suitable for bifurcated lesions is also provided comprising a side branch stent with a shaped end designed to engage a similarly shaped side opening in a main stent.

Claims20

Dependent claims

An inflatable balloon system for use in a bifurcated vessel having a main branch from which a side branch extends therefrom comprising:

a first balloon and a second balloon each having proximal and distal end portions;
the first balloon having a pre-formed, recessed longitudinal groove defined in a wall of the proximal end portion of the first balloon, the groove being dimensioned to receive at least a portion of a circumference of the proximal end portion of the second balloon;
and
the proximal end portion of the second balloon being at least partially seated lengthwise within the longitudinal groove and remaining at least partially seated within the groove after inflation and after deflation of the first balloon and the second balloon, wherein the proximal end portion of the second balloon remains at least partially seated within the groove after full inflation of the first balloon and the second balloon;
and
wherein the proximal ends portions of the first and second balloons and the distal end portion of the first balloon form a primary inflatable portion for the main branch of the bifurcated vessel and wherein the distal end of the second balloon forms a secondary inflatable portion for the side branch of the bifurcated vessel.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/837,568Filed 10 Jun 2022 · continuation
Priority: 19 Aug 2011
Published: US 2022/0296400 A122 Sep 2022
Granted: 15 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61F 2/954
Instruments specially adapted for placement or removal of stents or stent-grafts: for placing stents or stent-grafts in a bifurcation
A61F 2/856
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents: single tubular stent with a side portal…
A61F 2/958
Instruments specially adapted for placement or removal of stents or stent-grafts: inflatable balloons for placing stents or stent-grafts
A61F 2002/821
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents: ostial stents

Family

Application61/525,627Us provisional application · filed 19 Aug 2011
Application14/239,611Parent of this division · filed 20 Aug 2012
PCT/CA2012/000771Parent of this division · filed 20 Aug 2012
Application15/274,766Parent of this division · filed 23 Sep 2016
US 9,486,342 B2Parent of this division · filed 8 Nov 2016
Application16/590,743Parent of this continuation · filed 2 Oct 2019
US 10,463,518 B2Parent of this division · filed 5 Nov 2019
US 2022/0296400 A1Pre-grant publication · published 22 Sep 2022
US 11,376,143 B2Parent of this continuation
Application16/590,743Parent of this division
US 2014/0214147 A1Published application
US 2017/0007431 A1Published application
US 2020/0030128 A1Published application
US 12,734,054 B2This patent

From the US filing history. Foreign family members aren’t listed.