Delivery device for medical implant and medical procedure
First Claim
1. A medical procedure for reducing cardiac valve regurgitation including the steps of:
- measuring the geometry of a dilated cardiac valve of a patient including the shape and size of a dilated annulus thereof;
determining the downsized shape and size of said dilated annulus;
selecting a resilient annuloplasty implant having in a tissue engaging conformation a shape and size to be arranged at said dilated annulus based on said determined downsized shape and size of said dilated annulus;
introducing said annuloplasty implant in a delivery device in a compressed state via a catheter to said dilated cardiac valve;
releasing an aggregate of a distal portion of said delivery device and said annuloplasty implant in a stretched state in said delivery device from said catheter such that said annuloplasty implant assumes an expanded shape;
positioning said aggregate at said dilated annulus;
affixing said distal portion to said dilated annulus by activating suction of suction units;
providing and/or verifying a desired apposition of said distal portion at said dilated annulus prior to releasing said annuloplasty implant;
releasing and anchoring said annuloplasty implant into said dilated annulus;
reducing the size of said delivery device and/or annuloplasty implant for reshaping said dilated annulus to said downsized shape;
determining a reduction of said dilated cardiac valve regurgitation, andremoving said delivery device and catheter if the reduction is satisfactory, or removing said annuloplasty implant together with said delivery device when said reduction is determined as not being satisfactory; and
includingapplying a catheter-based medical system for reducing said cardiac dilated cardiac valve regurgitation, said medical system having said annuloplasty implant for reducing the size of said dilated annulus of said dilated cardiac valve for reducing said regurgitation, and a delivery device for said annuloplasty implant having a distal hollow portion for receiving said annuloplasty implant and having an opening arranged to be in opposition against said dilated annulus of said dilated cardiac valve;
said procedure further includingreleasably mounting said annuloplasty implant in said distal hollow portion with said resilient anchoring elements arranged in a restrained spring loaded delivery conformation in said hollow, for said introducing;
positioning said aggregate at said dilated annulus;
providing and/or verifying a desired apposition of said distal portion at said dilated annulus prior to releasing said annuloplasty implant;
releasing and anchoring said annuloplasty implant into said dilated annulus.
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Accused Products
Abstract
A catheter (4) based medical system (1) and medical procedure for reducing cardiac valve regurgitation are disclosed. The system comprises a resilient curvilinear shaped annuloplasty implant (3) for reducing the size of a dilated annulus (18) of said valve for reducing said regurgitation having resilient anchoring elements (300), and a delivery device (2) for said annuloplasty implant (3) having a distal curvilinear shaped portion (200) that is hollow to mount said annuloplasty implant (3) and has an annular opening (201) arranged to be in apposition against an annulus (18) of said cardiac valve. A plurality of suction units allows for a atrial approach and symmetric implantation of said implant.
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Citations
7 Claims
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1. A medical procedure for reducing cardiac valve regurgitation including the steps of:
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measuring the geometry of a dilated cardiac valve of a patient including the shape and size of a dilated annulus thereof; determining the downsized shape and size of said dilated annulus; selecting a resilient annuloplasty implant having in a tissue engaging conformation a shape and size to be arranged at said dilated annulus based on said determined downsized shape and size of said dilated annulus; introducing said annuloplasty implant in a delivery device in a compressed state via a catheter to said dilated cardiac valve; releasing an aggregate of a distal portion of said delivery device and said annuloplasty implant in a stretched state in said delivery device from said catheter such that said annuloplasty implant assumes an expanded shape; positioning said aggregate at said dilated annulus; affixing said distal portion to said dilated annulus by activating suction of suction units; providing and/or verifying a desired apposition of said distal portion at said dilated annulus prior to releasing said annuloplasty implant; releasing and anchoring said annuloplasty implant into said dilated annulus; reducing the size of said delivery device and/or annuloplasty implant for reshaping said dilated annulus to said downsized shape; determining a reduction of said dilated cardiac valve regurgitation, and removing said delivery device and catheter if the reduction is satisfactory, or removing said annuloplasty implant together with said delivery device when said reduction is determined as not being satisfactory; and
includingapplying a catheter-based medical system for reducing said cardiac dilated cardiac valve regurgitation, said medical system having said annuloplasty implant for reducing the size of said dilated annulus of said dilated cardiac valve for reducing said regurgitation, and a delivery device for said annuloplasty implant having a distal hollow portion for receiving said annuloplasty implant and having an opening arranged to be in opposition against said dilated annulus of said dilated cardiac valve;
said procedure further includingreleasably mounting said annuloplasty implant in said distal hollow portion with said resilient anchoring elements arranged in a restrained spring loaded delivery conformation in said hollow, for said introducing; positioning said aggregate at said dilated annulus; providing and/or verifying a desired apposition of said distal portion at said dilated annulus prior to releasing said annuloplasty implant; releasing and anchoring said annuloplasty implant into said dilated annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification