Adjustable annuloplasty ring sizing indicator

摘要

An adjustment tool enables manipulation of a prosthetic anatomical device such as an annuloplasty ring. The tool includes a compression member which is operative for retarding rotation of the adjustment shaft to preclude inadvertent rotation thereof during use of the tool by the surgeon. A locking device is associated with the adjustment tool to enable the releasable attachment of the tool to the anatomical device during its adjustment by manipulation of the tool. The locking device is oriented into operative and inoperative positions by the engagement and disengagement of locking elements. A scale may be provided on the adjustment tool to assist a surgeon in determining the size or amount of adjustment to the size of the anatomical device during its adjustment.

主权项

1. A tool for adjusting the size of an adjustable annuloplasty ring, comprising:
a housing having a scale thereon configured to indicate the size of the annuloplasty ring and an opening therein; a knob rotatable and longitudinally moveable within the opening of the housing; a shaft coupled to the knob for rotation therewith and including a distal end adapted to engage an adjustable annuloplasty ring, wherein rotation of the shaft by the knob adjusts the size of the annuloplasty ring; and a pointer arranged on the knob to indicate the size of the adjustable annuloplasty ring corresponding to the scale aligned with the pointer when moved longitudinally within the opening of the housing.