Catheter assembly with valve crimping accessories
First Claim
1. A catheter assembly for crimping an expandable prosthesis, the catheter assembly comprising:
- a handle assembly located on the proximal end of the catheter assembly;
a distal tip assembly located on the distal end of the catheter assembly and having a distal tip assembly diameter;
a first elongate member, the first elongate member extending from the handle assembly towards the distal tip assembly; and
a crimping funnel slidably positioned over the first elongate member and the distal tip assembly, the crimping funnel comprising;
a distal end having a first diameter;
a proximal end having a second diameter smaller than the first diameter, the proximal end having an axial split, wherein the second diameter is less than the distal tip assembly diameter; and
a first collar encompassing a portion of the proximal end, wherein the first collar is configured to hold the axial split in the proximal end together when the first collar is at a first axial location along the proximal end, and wherein the first collar is configured to allow the axial split in the proximal end to open when the first collar is at a second axial location along the proximal end,wherein the axial split allows the second diameter of the proximal end of the crimping funnel to increase to a diameter larger than the distal tip assembly, when the first collar is in the second axial location,wherein the crimping funnel is positioned over the first elongate member such that the first elongate member is disposed within the proximal end of the crimping funnel and the distal tip assembly is disposed within or distal of the distal end of the crimping funnel such that the distal tip assembly is disposed distal of the first diameter with the first collar at the first axial location.
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Accused Products
Abstract
Catheter assemblies including a handle assembly located on the proximal end of the catheter assembly and a distal tip assembly located on the distal end of the catheter assembly. A crimping funnel is slidably positioned along the catheter. The crimping funnel includes a distal end having a first diameter and a proximal end having a second diameter smaller than the first diameter. An axial split is formed in the proximal end. A first collar is provided encompassing a portion of the proximal end. The first collar is configured to hold the axial split in the proximal end together when the first collar is at a first axial location along the proximal end, and to allow the axial split in the proximal end to open when the first collar is at a second axial location along the proximal end, such that the crimping funnel can be removed from the catheter assembly. Various methods of retaining a prosthetic valve on the catheter assembly during the crimping process are described.
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Citations
10 Claims
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1. A catheter assembly for crimping an expandable prosthesis, the catheter assembly comprising:
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a handle assembly located on the proximal end of the catheter assembly; a distal tip assembly located on the distal end of the catheter assembly and having a distal tip assembly diameter; a first elongate member, the first elongate member extending from the handle assembly towards the distal tip assembly; and a crimping funnel slidably positioned over the first elongate member and the distal tip assembly, the crimping funnel comprising; a distal end having a first diameter; a proximal end having a second diameter smaller than the first diameter, the proximal end having an axial split, wherein the second diameter is less than the distal tip assembly diameter; and a first collar encompassing a portion of the proximal end, wherein the first collar is configured to hold the axial split in the proximal end together when the first collar is at a first axial location along the proximal end, and wherein the first collar is configured to allow the axial split in the proximal end to open when the first collar is at a second axial location along the proximal end, wherein the axial split allows the second diameter of the proximal end of the crimping funnel to increase to a diameter larger than the distal tip assembly, when the first collar is in the second axial location, wherein the crimping funnel is positioned over the first elongate member such that the first elongate member is disposed within the proximal end of the crimping funnel and the distal tip assembly is disposed within or distal of the distal end of the crimping funnel such that the distal tip assembly is disposed distal of the first diameter with the first collar at the first axial location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of crimping a prosthetic valve onto a catheter assembly, the method comprising:
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securing a prosthetic valve to a valve retaining assembly of a catheter assembly, the catheter assembly further including; a first elongate member; a crimping funnel slidably positioned over the first elongate member; and a first sleeve positioned over the first elongate member; wherein the valve retaining assembly is positioned over the first elongate member; crimping the prosthetic valve by advancing the crimping funnel in a distal direction along the first elongate member and over the first sleeve; advancing the first sleeve in a distal direction along the first elongate member until at least a proximal portion of the crimped prosthetic valve is encompassed by the first sleeve; and removing the funnel from the catheter assembly. - View Dependent Claims (10)
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Specification