Medical device for treating a heart valve insufficiency or stenosis
First Claim
1. A self-expandable endoprosthesis for treating a heart valve insufficiency, comprising a plurality of positioning arches configured to be respectively positioned within a plurality of pockets of a native heart valve, a plurality of retaining arches configured to anchor the endoprosthesis within a patient, and at least one imperforate retaining head for releasably connecting the endoprosthesis to a catheter.
7 Assignments
0 Petitions
Accused Products
Abstract
A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient'"'"'s body and expanded to secure a heart valve prosthesis in the patient'"'"'s aorta with a catheter. In an embodiment, the endoprosthesis has a plurality of positioning arches configured to be positioned with respect to a patient'"'"'s aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a collapsed mode during the process of introducing it into the patient'"'"'s body and an expanded mode when it is implanted. The endoprosthesis may be introduced into a patient'"'"'s body and expanded via a catheter. In an embodiment, the catheter has first and second slide mechanisms configured to independently manipulate first and second sleeve elements to sequentially expand the endoprosthesis from the collapsed mode to the expanded mode.
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Citations
102 Claims
- 1. A self-expandable endoprosthesis for treating a heart valve insufficiency, comprising a plurality of positioning arches configured to be respectively positioned within a plurality of pockets of a native heart valve, a plurality of retaining arches configured to anchor the endoprosthesis within a patient, and at least one imperforate retaining head for releasably connecting the endoprosthesis to a catheter.
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8-23. -23. (canceled)
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25-36. -36. (canceled)
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39. (canceled)
- 40. A catheter tip configured to sequentially release an endoprosthesis having a plurality of positioning arches, a plurality of retaining arches, and a plurality of retaining heads, the catheter tip comprising a retaining mechanism having a plurality of retaining pockets each configured to receive a respective one of the plurality of retaining heads, each Docket being substantially complementary in shape to a respective one of the retaining heads.
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41-42. -42. (canceled)
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45-46. -46. (canceled)
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50. (canceled)
- 51. Catheter system for use in treating a heart valve, the catheter system comprising a catheter tip at a proximal end of the catheter system and including a retaining element having at least one pocket formed therein and configured to releasably connect to and retain an endoprosthesis via the at least one pocket in a first pre-definable mode and sequentially release the endoprosthesis to a second pre-definable mode, wherein the endoprosthesis is in a folded state in its first mode and in an expanded state in its second mode.
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55. (canceled)
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57-64. -64. (canceled)
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65. A catheter for implanting an endoprosthesis having a plurality of positioning arches, a plurality of retaining arches, and a body portion, comprising:
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a retaining portion configured to selectively fix the endoprosthesis to the catheter via a plurality of pockets formed in the catheter; a first housing portion configured to selectively retain the plurality of retaining arches in a collapsed state; and a second housing portion configured to selectively retain the plurality of positioning arches and the body portion in a collapsed state. - View Dependent Claims (66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
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76. A catheter comprising:
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a tip portion at a proximal end of the catheter configured to sequentially release an endoprosthesis from a collapsed state to an expanded state, the tip portion including; a first sleeve element configured to selectively surround a first portion of the endoprosthesis, and a second sleeve element configured to selectively surround a second portion of the endoprosthesis and the first sleeve element; and a handle portion at a distal end of the catheter configured to affect manipulation of the tip portion to sequentially release the endoprosthesis, the handle portion including; a first slide mechanism configured to selectively move between first and second stops to selectively manipulate the first sleeve to release the first portion of the endoprosthesis, and a second slide mechanism configured to selectively move between third and fourth stops to selectively manipulate the second sleeve and release the second portion of the endoprosthesis, wherein the first and second slide mechanisms are each configured to move between the respective stops independent of one another. - View Dependent Claims (77, 78, 79, 80)
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81. A method of implanting an endoprosthesis including a plurality of positioning arches, a plurality of retaining arches, and a plurality of retaining elements, the method comprising:
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positioning the endoprosthesis relative to a native heart valve; manipulating a first slide mechanism of a catheter to affect movement of a first sleeve element to uncover the plurality of positioning arches; positioning the positioning arches within pockets of the native heart valve; manipulating a second slide mechanism of the catheter to affect movement of a second sleeve element to uncover the plurality of retaining arches; and further manipulating the first slide mechanism to affect further movement of the first sleeve to uncover the plurality of retaining elements. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90)
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91. A method of explanting an endoprosthesis including a plurality of positioning arches, a plurality of retaining arches, and a plurality of retaining elements, the method comprising:
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manipulating a first slide mechanism of a catheter to affect movement of a first sleeve to collapse a portion of the endoprosthesis and cover the plurality of retaining elements; manipulating a second slide mechanism to affect movement of a second sleeve element to collapse the plurality of retaining arches; and further manipulating the first slide mechanism to affect further movement of the first sleeve element to collapse the plurality of positioning arches. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102)
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Specification