US 2026/0069856 A1 · Explant Plug Devices for Use in VAD Explantation

Abstract

Explant plug devices for attachment to a ventricular cuff during explantation of a ventricular assist device. An explant plug device includes a blood flow blocking component and a retention clip. The blood flow blocking component is configured to be mounted to the ventricular cuff to block flow of blood out of the ventricle via the ventricular cuff. The retention clip is coupled with the blood flow blocking component. The retention clip is repositionable relative to the blood flow blocking component from a retracted position that accommodates mounting of the blood flow blocking component to the ventricular cuff and a retention position that retains the blood flow blocking component to the ventricular cuff.

Claims23

Dependent claims

An explant plug device mountable to a ventricular cuff in fluid communication with a ventricle to block blood from flowing out of the ventricle through a blood flow channel of the ventricular cuff, the explant plug device comprising:

a seal assembly configured for insertion into the blood flow channel and blocking blood flow through the blood flow channel;
and
a retention assembly comprising one or more retention members and a spring assembly coupled with the one or more retention members, wherein the retention assembly is reconfigurable between an insertion configuration and a retention configuration, wherein each of the one or more retention members in the insertion configuration is positioned to accommodate insertion of the retention assembly into the blood flow channel of the ventricular cuff, and wherein the spring assembly in the retention configuration is configured to hold each of the one or more retention members in engagement with an inner surface of the ventricular cuff that defines the blood flow channel.

An explant plug device mountable to a ventricular cuff in fluid communication with a ventricle to block blood from flowing out of the ventricle through the ventricular cuff, wherein the ventricular cuff comprises an outwardly facing annular flange, an outwardly facing annular groove, and a blood flow channel for an inlet cannula of a blood pump, the explant plug device comprising:

a blood flow blocking component configured to be mounted to the ventricular cuff to block flow of blood out of the ventricle via the ventricular cuff;
and
a retention clip coupled with the blood flow blocking component, wherein the retention clip is repositionable relative to the blood flow blocking component from a retracted position that accommodates mounting of the blood flow blocking component to the ventricular cuff and a retention position that engages the outwardly facing annular flange to retain the blood flow blocking component to the ventricular cuff.

Dependencies are inferred from the claim text.

Explant Plug Devices for Use in VAD Explantation

Life of this patent

Explant Plug Devices for Use in VAD Explantation

Life of this patent

Abstract

Claims23