Placement catheter assembly
First Claim
1. A placement catheter assembly comprising:
- a hollow outer shaft comprising a distal part, said distal part comprising a distal end;
an inner shaft, having a distal end, movably housed within the outer shaft;
a radially-expansible endoluminal prosthesis mounted about the inner shaft between the distal ends of the inner and outer shafts;
a distal end attachment device comprising a distal end release element carried by the inner shaft and releasably securing the prosthesis to the inner shaft;
a proximal end attachment device comprising;
an elongate, tubular proximal end release element holder extending axially away from the distal end of the outer shaft;
a proximal end release element carried by the outer shaft with a part of the proximal end release element passing through the holder;
the holder having a side opening from which a portion of the proximal end release element extends to engage the prosthesis thereby releasably securing the prosthesis to the outer shaft; and
the prosthesis in a radially contracted state and the distal and proximal end release elements together having a maximum diameter which is at most about equal to the diameter of the distal part of the outer shaft so that placement of the prosthesis is facilitated.
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Accused Products
Abstract
An embodiment of a placement catheter assembly (2) comprises an inner shaft (10) movably housed within a hollow outer shaft (8). A radially-expansible endoluminal prosthesis (6) is mounted about the inner shaft between the distal ends of the inner and outer shafts. Distal and proximal end release elements (22/28, 16/34), such as pull wires, are carried by the inner and outer shafts and releasably secure the prosthesis to the inner and outer shafts. The prosthesis in the radially contracted state and the distal and proximal end release elements together have a maximum diameter which is at most about equal to the diameter of the distal part (48) of the outer shaft to facilitate placement of the prosthesis.
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Citations
12 Claims
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1. A placement catheter assembly comprising:
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a hollow outer shaft comprising a distal part, said distal part comprising a distal end;
an inner shaft, having a distal end, movably housed within the outer shaft;
a radially-expansible endoluminal prosthesis mounted about the inner shaft between the distal ends of the inner and outer shafts;
a distal end attachment device comprising a distal end release element carried by the inner shaft and releasably securing the prosthesis to the inner shaft;
a proximal end attachment device comprising;
an elongate, tubular proximal end release element holder extending axially away from the distal end of the outer shaft;
a proximal end release element carried by the outer shaft with a part of the proximal end release element passing through the holder;
the holder having a side opening from which a portion of the proximal end release element extends to engage the prosthesis thereby releasably securing the prosthesis to the outer shaft; and
the prosthesis in a radially contracted state and the distal and proximal end release elements together having a maximum diameter which is at most about equal to the diameter of the distal part of the outer shaft so that placement of the prosthesis is facilitated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification