Mechanism for securing to a corporeal lumen and method of manufacturing
First Claim
Patent Images
1. A mechanism for securing an endoprosthesis to corporeal tissue of a corporeal lumen, the mechanism comprising:
- a tubular frame having a central axis;
an elongate member having a first end attached to the tubular frame and a second end that is movable away from the tubular frame so as to impinge upon corporeal tissue;
an incision formed through the tubular frame, the incision creating an opening in the tubular frame extending from a beginning of the incision at the first end, around the second end, and to an ending of the incision at the first end of the elongate member, wherein the elongate member includes a middle portion between the first end and the second end; and
a pair of stress relief cut-outs formed through the tubular frame and located adjacent the first end of the elongate member at both ends of the incision;
wherein the incision defines the first and second ends and a point on the second end of the elongate member that have a combined shape that corresponds to a shape of the opening in the tubular frame;
wherein a length from the first end to the point on the second end of the elongate member is oriented along the central axis; and
wherein the tubular frame has a compressed configuration at which the second end of the elongate member extends a first distance from the frame in a first direction and at which the middle portion extends a second distance from the frame in a second direction opposite the first direction.
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Abstract
An improved hood provides for the attaching of endoluminal prosthesis within corporeal lumens. The hook is integrally formed with framing structure and is preset into an outward bend, but is resiliently flexible so as to form a substantially straight profile when compressed. The hook is capable of impinging upon the corporeal lumen and thereby securing the prosthesis. The hook may be configured for intraluminal delivery and deployment. A novel method of manufacturing said hook is also provided.
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Citations
20 Claims
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1. A mechanism for securing an endoprosthesis to corporeal tissue of a corporeal lumen, the mechanism comprising:
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a tubular frame having a central axis; an elongate member having a first end attached to the tubular frame and a second end that is movable away from the tubular frame so as to impinge upon corporeal tissue; an incision formed through the tubular frame, the incision creating an opening in the tubular frame extending from a beginning of the incision at the first end, around the second end, and to an ending of the incision at the first end of the elongate member, wherein the elongate member includes a middle portion between the first end and the second end; and a pair of stress relief cut-outs formed through the tubular frame and located adjacent the first end of the elongate member at both ends of the incision; wherein the incision defines the first and second ends and a point on the second end of the elongate member that have a combined shape that corresponds to a shape of the opening in the tubular frame; wherein a length from the first end to the point on the second end of the elongate member is oriented along the central axis; and wherein the tubular frame has a compressed configuration at which the second end of the elongate member extends a first distance from the frame in a first direction and at which the middle portion extends a second distance from the frame in a second direction opposite the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mechanism for securing an endoprosthesis to corporeal tissue of a corporeal lumen, the mechanism comprising:
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a tubular frame having a central axis; an incision formed through the tubular frame, the incision creating an opening in the tubular frame extending from a beginning of the incision at a first end, around a second end, and to an ending of the incision at the first end of an elongate member, wherein the elongate member includes a middle portion between the first end and the second end; a pair of stress-relief cut-outs formed through the tubular frame and located adjacent the first end of the elongate member at both ends of the incision; and the elongate member having a pointed end movable away from the tubular frame so as to impinge upon corporeal tissue, the elongate member formed on the tubular frame by an incision through the frame that defines the first and second ends and a point on the second end of the elongate member that have a combined shape that corresponds to a shape of the opening in the tubular frame; wherein a length from the first end to the point on the second end of the elongate member is oriented along the central axis; and wherein the tubular frame has a compressed configuration at which the second end of the elongate member extends a first distance from the frame in a first direction and at which the middle portion extends a second distance from the frame in a second direction opposite the first direction. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of manufacturing a mechanism for securing an endoprosthesis to corporeal tissue of a corporeal lumen, the method comprising:
forming an elongate member on a tubular frame having a central axis, wherein the elongate member is formed with an incision formed through the tubular frame creating an opening in the tubular frame extending from a beginning of the incision at a first end, around a second end, and to an ending of the incision at the first end of the elongate member, wherein the elongate member includes a middle portion between the first end and the second end and wherein the elongate member has the first end attached to the tubular frame and a pointed second end that is movable from the frame so as to impinge upon corporeal tissue, including removing material from the frame to form an incision extending around the pointed end that defines the first and second ends and a point on the second end of the elongate member that have a combined shape that corresponds to a shape of the opening in the tubular frame, wherein a length from the first end to the point on the second end of the elongate member is oriented along the central axis and wherein the tubular frame has a compressed configuration at which the second end of the elongate member extends a first distance from the frame in a first direction and at which the middle portion extends a second distance from the frame in a second direction opposite the first direction, and removing additional material from the frame to form a pair of stress relief cut-outs located adjacent the first end of the elongate member at both ends of the incision. - View Dependent Claims (18, 19, 20)
Specification