DYNAMIC ANNULOPLASTY RING SIZER
First Claim
1. A sizing device, comprising:
- a device body having a proximal end and a distal end;
a handle portion positioned adjacent the proximal end of the device body;
an adjustable annuloplasty ring replica positioned adjacent the distal end of the device body, wherein the adjustable annuloplasty ring replica is configured to be adjusted to a plurality of different sizes; and
a shaft that couples the adjustable annuloplasty ring replica to the handle portion.
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Accused Products
Abstract
A dynamic, adjustable annuloplasty ring sizer can include an adjustable ring replica, which can be adjusted through a range of sizes corresponding to available prosthetic annuloplasty repair ring sizes. Actuation of an adjustment trigger on a handle portion of the ring sizer can displace tension wires that extend through a malleable shaft and through a plurality of articulating segments that form the ring replica. Displacement of the tension wires causes flexion of the joints between adjacent articulating segments, thereby reducing the overall size of the ring replica. Releasing the tension wires can allow an elastic extension wire to act on the ring replica, enlarging the ring replica to its maximum, at-rest size. In this manner, the appropriate size of annuloplasty ring prosthesis can be determined with a single device, without requiring a plurality of static ring sizers that require individual insertion and placement for the conventional trial-and-error sizing methods.
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Citations
20 Claims
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1. A sizing device, comprising:
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a device body having a proximal end and a distal end; a handle portion positioned adjacent the proximal end of the device body; an adjustable annuloplasty ring replica positioned adjacent the distal end of the device body, wherein the adjustable annuloplasty ring replica is configured to be adjusted to a plurality of different sizes; and a shaft that couples the adjustable annuloplasty ring replica to the handle portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. The device according to claim 16, wherein the tension wire channel is configured to receive at least one elongated member.
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18. A device comprising:
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a handle portion positioned adjacent a proximal end of the device; an adjustable C-shaped annuloplasty ring replica positioned adjacent a distal end of the device, wherein the adjustable C-shaped annuloplasty ring replica comprises a first free end and a second free end; a malleable shaft coupling the handle portion to the adjustable C-shaped annuloplasty ring replica via an articulating joint, the malleable shaft being configured to receive at least one tension wire; and an adjustment trigger positioned adjacent the handle portion, wherein actuation of the adjustment trigger is configured to displace the at least one tension wire, and wherein displacement of the at least one tension wire is configured to contract and/or expand the adjustable C-shaped annuloplasty ring replica; wherein the C-shaped adjustable annuloplasty ring replica comprises a backbone segment coupled to the malleable shaft, wherein the backbone segment comprises a first backbone end and a second backbone end opposite the first backbone end, wherein a first plurality of articulating segments serially coupled to one another extend in an elongated manner from the first backbone end to the first free end of the ring replica, and wherein a second plurality of articulating segments serially coupled to one another extend in an elongated manner from the second backbone end to the second free end of the ring replica, wherein the C-shaped adjustable annuloplasty ring replica comprises an extension wire channel adjacent an outer ring surface and a tension wire channel adjacent an inner ring surface, and wherein displacement of the at least one tension wire is configured to move each respective articulating segment with respect to each adjacent articulating segment and/or the backbone segment. - View Dependent Claims (19, 20)
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Specification