Minimally-invasive delivery systems
First Claim
1. Apparatus, comprising:
- an implant;
comprising (i) a frame that defines a central longitudinal lumen, and (ii) prosthetic valve leaflets disposed within the lumen,constrainable, by a constraining force, in a compressed state in which the lumen has a compressed internal diameter,having an expanded state into which the implant automatically transitions upon removal of the constraining force, and in which the lumen has an expanded internal diameter; and
a tool, configured for transluminal delivery of the implant, the tool comprising;
a shaft that extends longitudinally from a proximal part of the tool;
a nosepiece fixed to the shaft, and arranged with respect to the implant such that the implant extends proximally away from the nosepiece and over the shaft; and
a balloon, in fluid communication with the proximal part of the tool,wherein;
the balloon has;
a maximally-inflated state in which the balloon (i) has a widest part that has an inflated external diameter that is smaller than the expanded internal diameter, (ii) has a tapered portion that tapers longitudinally away from the widest part and from the nosepiece, and (iii) is dimensioned such that, while the implant is in its expanded state, the balloon is withdrawable by sliding of the balloon through the lumen, between the leaflets, and out of the lumen, anda deflated state in which the widest part has a deflated external diameter that is smaller than the inflated external diameter, andthe apparatus has a delivery state in which;
the implant is in the compressed state,the balloon is in the deflated state, anda portion of the balloon is disposed within the lumen.
3 Assignments
0 Petitions
Accused Products
Abstract
A tool is configured for transluminal delivery of an implant. The tool has a proximal part and a distal part, and comprises a shaft, a nosepiece, a sheath, and a balloon. The nosepiece is fixed to the shaft, and is arranged with respect to the implant such that the implant extends proximally away from the nosepiece and over the shaft. The sheath houses the implant. The balloon is disposed at the distal part of the tool, and is in fluid communication with the proximal part of the tool. When maximally inflated, the balloon has (i) a widest part that has an inflated diameter that is less than the diameter of the sheath or at most 10 percent greater than the diameter of the sheath, and (ii) a tapered portion that tapers longitudinally away from the widest part and from the nosepiece.
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Citations
18 Claims
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1. Apparatus, comprising:
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an implant; comprising (i) a frame that defines a central longitudinal lumen, and (ii) prosthetic valve leaflets disposed within the lumen, constrainable, by a constraining force, in a compressed state in which the lumen has a compressed internal diameter, having an expanded state into which the implant automatically transitions upon removal of the constraining force, and in which the lumen has an expanded internal diameter; and a tool, configured for transluminal delivery of the implant, the tool comprising; a shaft that extends longitudinally from a proximal part of the tool; a nosepiece fixed to the shaft, and arranged with respect to the implant such that the implant extends proximally away from the nosepiece and over the shaft; and a balloon, in fluid communication with the proximal part of the tool, wherein; the balloon has; a maximally-inflated state in which the balloon (i) has a widest part that has an inflated external diameter that is smaller than the expanded internal diameter, (ii) has a tapered portion that tapers longitudinally away from the widest part and from the nosepiece, and (iii) is dimensioned such that, while the implant is in its expanded state, the balloon is withdrawable by sliding of the balloon through the lumen, between the leaflets, and out of the lumen, and a deflated state in which the widest part has a deflated external diameter that is smaller than the inflated external diameter, and the apparatus has a delivery state in which; the implant is in the compressed state, the balloon is in the deflated state, and a portion of the balloon is disposed within the lumen. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus, comprising:
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an implant; comprising (i) a frame that defines a central longitudinal lumen, and (ii) prosthetic valve leaflets disposed within the lumen, constrainable, by a constraining force, in a compressed state in which the lumen has a compressed internal diameter, having an expanded state into which the implant automatically transitions upon removal of the constraining force, and in which the lumen has an expanded internal diameter; and a tool, configured for transluminal delivery of the implant, the tool comprising; a shaft that extends longitudinally from a proximal part of the tool; a nosepiece fixed to the shaft, and arranged with respect to the implant such that the implant extends proximally away from the nosepiece and over the shaft; and a balloon, in fluid communication with the proximal part of the tool, wherein; the balloon has; a maximally-inflated state in which the balloon (i) has a widest part that has an inflated external diameter that is less than 90 percent of the expanded internal diameter, and (ii) has a tapered portion that tapers longitudinally away from the widest part and from the nosepiece, and a deflated state in which the widest part has a deflated external diameter that is smaller than the inflated external diameter, and the apparatus has a delivery state in which; the implant is in the compressed state, the balloon is in the deflated state, and a portion of the balloon is disposed within the lumen. - View Dependent Claims (8, 9, 10, 11, 12)
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13. Apparatus, comprising:
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an implant; comprising (i) a frame that defines a central longitudinal lumen, and (ii) a valve member disposed within the lumen, constrainable, by a constraining force, in a compressed state in which the lumen has a compressed internal diameter, having an expanded state into which the implant automatically transitions upon removal of the constraining force, and in which the lumen has an expanded internal diameter; and a tool, configured for transluminal delivery of the implant, the tool comprising; a shaft that extends longitudinally from a proximal part of the tool; a nosepiece fixed to the shaft, and arranged with respect to the implant such that the implant extends proximally away from the nosepiece and over the shaft; and a balloon, in fluid communication with the proximal part of the tool, wherein; the balloon has; a maximally-inflated state in which the balloon (i) has a widest part that has an inflated external diameter that is smaller than the expanded internal diameter and can fit through the valve member, (ii) has a tapered portion that tapers longitudinally away from the widest part and from the nosepiece, and a deflated state in which the widest part has a deflated external diameter that is smaller than the inflated external diameter, and the apparatus has a delivery state in which; the implant is in the compressed state, the balloon is in the deflated state, and a portion of the balloon is disposed within the lumen. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification