Aligning device for stent graft delivery system
First Claim
1. A system for implanting a prosthesis, comprising:
- a) a prosthesis that is asymmetric about a major longitudinal axis;
b) a prosthesis delivery sheath in direct contact with and constraining the prosthesis for delivering the prosthesis to a treatment site; and
c) an alignment device connected to said prosthesis delivery sheath, each component of the alignment device appearing asymmetric relative to a respective axis running through a center of the component and transverse to the major longitudinal axis when viewed along the transverse axis, each component also being asymmetric relative to an axis parallel to a major longitudinal axis of the prosthesis delivery sheath, wherein said alignment device is visible to a user, thereby indicating a rotational and an axial position of the sheath with respect to the treatment site and said alignment device is a pair of markers, said markers having a contact diameter and being symmetrical about said contact diameter on opposing sides of said contact diameter.
1 Assignment
0 Petitions
Accused Products
Abstract
A prosthesis implanting system includes a delivery sheath for receiving the prosthesis and delivering it to the treatment site and an alignment device on the sheath visible to a user for indicating a rotational and an axial position of the sheath with respect to the treatment site. The alignment device is part of a delivery assembly slidably disposed in a handle. The delivery assembly has a hollow first lumen for slidably receiving therein a guidewire, a hollow second lumen slidably disposed about the first lumen, a hollow third lumen slidably disposed about the second lumen and having a distal end at which the sheath is connected and is disposed about the first and second lumen. The sheath holds the prosthesis therein prior to implantation and the alignment device is connected to the sheath. A relatively stiff outer lumen is slidably disposed about the third lumen and sheath.
569 Citations
36 Claims
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1. A system for implanting a prosthesis, comprising:
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a) a prosthesis that is asymmetric about a major longitudinal axis; b) a prosthesis delivery sheath in direct contact with and constraining the prosthesis for delivering the prosthesis to a treatment site; and c) an alignment device connected to said prosthesis delivery sheath, each component of the alignment device appearing asymmetric relative to a respective axis running through a center of the component and transverse to the major longitudinal axis when viewed along the transverse axis, each component also being asymmetric relative to an axis parallel to a major longitudinal axis of the prosthesis delivery sheath, wherein said alignment device is visible to a user, thereby indicating a rotational and an axial position of the sheath with respect to the treatment site and said alignment device is a pair of markers, said markers having a contact diameter and being symmetrical about said contact diameter on opposing sides of said contact diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for implanting a prosthesis, comprising:
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a) a prosthesis that is asymmetric about a major longitudinal axis; b) a prosthesis delivery sheath in direct contact with and constraining the prosthesis for delivering the prosthesis to a treatment site; and c) an alignment device connected to said prosthesis delivery sheath, each component of the alignment device appearing asymmetric relative to a respective axis running through a center of the component and transverse to the major longitudinal axis when viewed along the transverse axis, each component also being asymmetric relative to an axis parallel to a major longitudinal axis of the prosthesis delivery sheath, wherein said alignment device is visible to a user, thereby indicating a rotational and an axial position of the sheath with respect to the treatment site and said alignment device is a pair of radiopaque markers each having a first shape and being connected to opposing sides of said sheath, each of said first shapes including an alignment segment, and, in a plan view of one said markers, said alignment segments aligning with one another to, together, define a second shape different from said first shape. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A delivery device for implanting a prosthesis, comprising:
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a) a handle; b) a prosthesis that is asymmetric about a major longitudinal axis; c) a sheath lumen slidably disposed in said handle between a retracted position and an extended position, said sheath lumen having a distal end; d) a prosthesis delivery sheath connected to said distal end of said sheath lumen and in direct contact with and constraining the prosthesis for delivery the prosthesis to an implantation site; e) an outer lumen that is stiff relative to the prosthesis delivery sheath and axially fixedly connected to said handle about said sheath lumen and prosthesis delivery sheath; and f) an alignment device connected to said prosthesis delivery sheath visible to a user, each component of the alignment device being asymmetric relative to an axis parallel to a major longitudinal axis of the prosthesis delivery sheath, each component of the alignment device also appearing asymmetric relative to a respective axis running through a center of the component and transverse to the major longitudinal axis when viewed along the transverse axis, wherein the alignment device is a pair of markers, said markers each having a contact diameter and being symmetrical about said contact diameter on opposing sides of said contact diameter, thereby indicating rotational and axial position of the prosthesis delivery sheath with respect to the implantation site. - View Dependent Claims (29, 30, 31)
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32. A system for traversing a guidewire and implanting a prosthesis at an implantation site in a patient, comprising a prosthesis and a delivery device, wherein the delivery device includes:
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a) a handle; b) a prosthesis that is asymmetric about a major longitudinal axis; and c) a prosthesis delivery assembly slidably disposed in said handle between a retracted position and an extended position, said delivery assembly having; i) at least one guidewire lumen for slidably receiving therein the guidewire; ii) an apex release lumen slidably disposed about said at least one guidewire lumen; iii) a sheath lumen slidably disposed about said apex release lumen and having a distal end; iv) a prosthesis delivery sheath that is flexible relative to the sheath lumen and connected to said distal end of said sheath lumen and disposed about said at least one guidewire lumen and said apex release lumen, said prosthesis delivery sheath in direct contact with and constraining said prosthesis therein at least prior to implantation of said prosthesis at the implantation site; and v) an alignment device connected to said relatively flexible prosthesis delivery sheath, each component of the alignment device being asymmetric relative to an axis parallel to a major longitudinal axis of the prosthesis delivery sheath and, wherein the alignment device is visible to a user for aligning a prosthesis placed in said prosthesis delivery sheath with an implantation site both rotationally and axially, each component of the alignment device also appearing asymmetric relative to a respective axis running through a center of the component and transverse to the major longitudinal axis when viewed along the transverse axis, wherein said alignment device is a pair of markers, said markers having a contact diameter and being symmetrical about said contact diameter on opposing sides of said contact diameter; and vi) an outer lumen that is stiff relative to the prosthesis delivery sheath and slidably disposed about said at least one guidewire lumen and said sheath lumen, and slidably disposed about said prosthesis delivery sheath when said prosthesis delivery sheath is at least partially inside said outer lumen; and
having a proximal end connected to said handle to axially fix said outer lumen with respect to said handle. - View Dependent Claims (33, 34, 35)
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36. A system for implanting a prosthesis, comprising:
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a) a prosthesis that is asymmetric about a major longitudinal axis; b) a prosthesis delivery sheath in direct contact with and constraining the prosthesis for delivering the prosthesis to a treatment site; and c) an alignment device proximate to the prosthesis delivery sheath, each component of the alignment device being asymmetric relative to an axis parallel to a major longitudinal axis of the prosthesis delivery sheath, and wherein said alignment device is visible to a user, each component of the alignment device also appearing asymmetric relative to an axis running through a center of the component and transverse to the major longitudinal axis when viewed along the transverse axis, wherein said alignment device is a pair of markers, said markers having a contact diameter and being symmetrical about said contact diameter on opposing sides of said contact diameter, thereby indicating a rotational and an axial position of the sheath with respect to the treatment site.
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Specification