Adjustable annuloplasty ring sizing indicator
AssigneeSt. Jude Medical, Inc.
InventorEric E. Bielefeld
Life of this patent
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Abstract
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.
Claims30
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.
A tool for adjusting the size of an adjustable annuloplasty ring, the tool comprising:
- a housing having a scale thereon to indicate the size of the annuloplasty ring and an opening therein, the housing including a proximal end and a distal end;
- a threaded barrel coupled to the housing and extending along at least a portion of the length of the housing within the opening;
- a knob rotatably disposed about the threaded barrel and longitudinally moveable within the opening along the barrel, the knob having threads adapted to engage the threaded barrel;
- a shaft extending within the knob supported within the housing and being coupled to the knob for rotation with the knob, wherein rotation of the shaft by the knob adjusts the size of the annuloplasty ring;
- an adjustment head arranged on a distal end of the shaft and being adapted to engage an adjustable annuloplasty ring;
- and
- a pointer arranged on the knob and adapted to align with the scale when moved longitudinally within the opening of the housing.
A method of adjusting the size of an adjustable annuloplasty ring, comprising:
- engaging an adjustable annuloplasty ring with an adjustment tool, the adjustment tool comprising:
- a housing having a scale thereon and an opening therein;
- a knob rotatably disposed within the opening of the housing;
- a pointer arranged on the knob to align with the scale;
- and
- a shaft coupled to the knob for rotation therewith and including a distal end adapted to engage the adjustable annuloplasty ring;
- rotating the knob for moving the knob longitudinally within the opening relative to the housing such that the pointer aligns with the scale;
- and
- determining the size of the adjustable annuloplasty ring corresponding to the scale with which the pointer aligns.
A method of adjusting the size of an adjustable annuloplasty ring, comprising:
- engaging an adjustable annuloplasty ring with an adjustment tool, the adjustment tool comprising:
- a housing having a scale thereon and an opening therein, the housing including a distal end and a proximal end,
- a threaded barrel coupled to the housing within the opening,
- a knob rotatably disposed about the threaded barrel, the knob including threads adapted to engage the threaded barrel,
- a shaft extending within the knob supported within the housing, the shaft being coupled to the knob for rotation therewith,
- an adjustment head arranged on the shaft and being adapted to engage the adjustable annuloplasty ring, and
- a pointer arranged on the knob and adapted to align with the scale;
- rotating the knob such that the shaft and the adjustment head thereof rotate with respect to the threaded barrel and such that the knob is displaced along a longitudinal direction of the threaded barrel within the opening;
- and
- determining the adjustment to the size of the adjustable annuloplasty ring resulting from the rotation of the adjustment head and location of the pointer relative to the scale resulting from the displacement of the knob.
Dependencies are inferred from the claim text.