Device for surgical interventions

摘要

A device for locating an operational unit within a patient's body within the framework of a minimally-invasive surgery intervention includes a shaft having a distal end carrying an operational unit. The device includes an illuminator located at the distal end of the shaft. The illuminator is selectively adjustable to provide a selectively variable lighting field in correspondence with the operational unit. The device may be, for example, a delivery system for a heart valve or a balloon device for post-dilation of such a heart valve once implanted.

主权项

1. A device for implanting a minimally-invasive prosthetic heart valve at an implantation site, the prosthetic heart valve including an anchoring structure and a plurality of leaflets, the prosthetic heart valve having a collapsed configuration for delivery and an expanded configuration for anchoring at the implantation site, the device including:
a shaft extending from a handle at a proximal end to a valve holder at a distal end, the valve holder adapted to couple to the prosthetic heart valve and maintain the prosthetic heart valve in the collapsed configuration, the shaft having a diameter at the proximal end where the shaft extends from the handle that is smaller than a diameter of the handle; an illuminator selectively adjustable to provide a variable lighting field, the illuminator coupled at or near the distal end of the shaft; an optical fiber extending through at least a portion of the shaft, the optical fiber having a proximal end extending from the proximal end of the shaft and a distal end coupled to the illuminator, the optical fiber is adapted to transmit the lighting field from the illuminator to the distal end of the shaft, and adapted to be axially slidable with respect to the shaft to selectively displace the illuminator to provide a selectively variable lighting field; an actuator coupled to the illuminator and adapted to effect a change to the variable lighting field; and a lock means actuatable to permit the optical fiber to be axially slidable with respect to the shaft to allow the illuminator to be positioned at multiple selective locations in order to provide the selectively variable lighting field, and the lock means being actuatable to prevent the optical fiber from being axially slidable with respect to the shaft in order to lock the illuminator at a particular selective location, wherein the lock means is located proximal to the handle and proximal to the valve holder.