Method and Apparatus for Determining Status of Approximation Structures on Anastomosis Device
First Claim
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1. An anastomosis device, comprising:
- a catheter body having a proximal end and a distal end, wherein said catheter body includes an external surface, and internal surface and at least one approximating aperture;
at least one tissue approximating structure contained by the internal surface of said catheter body, wherein said tissue approximating structure includes a hub and an extendible and retractable tine; and
a radiographic marker positioned about the external surface of the catheter body, wherein alignment of the hub with the radiographic marker provides indication of the tine being in an extended or retracted position.
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Abstract
An anastomosis device (10) in which radiographic band markers (26, 28) are used to determine fluoroscopically whether approximation structures (24) have been deployed based upon the observed alignment of the radiographic band markers and the approximation structures. The radiographic band markers are positioned proximate a distal end (22) of the anastomosis device wherein a medical professional can fluoroscopically compare a position of crimp hubs (30) on the approximation structures with the radiographic band markers.
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Citations
15 Claims
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1. An anastomosis device, comprising:
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a catheter body having a proximal end and a distal end, wherein said catheter body includes an external surface, and internal surface and at least one approximating aperture; at least one tissue approximating structure contained by the internal surface of said catheter body, wherein said tissue approximating structure includes a hub and an extendible and retractable tine; and a radiographic marker positioned about the external surface of the catheter body, wherein alignment of the hub with the radiographic marker provides indication of the tine being in an extended or retracted position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for verifying a retention status of an anastomosis device, comprising:
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providing an anastomosis device having a catheter body with a proximal end and a distal end, the anastomosis device including at least one tissue approximating structure disposed within the catheter body and at least one radiographic marker positioned on an exterior wall of the catheter body; and verifying a position of the at least one tissue approximating structures relative to the at least one radiographic marker. - View Dependent Claims (11, 12, 13, 14)
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15. An anastomosis device, comprising:
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a catheter body having a proximal end and a distal end, the distal end comprising an outer body wall and an inner body wall defining a hollow central channel, and an inner drainage lumen, each extending at least a portion of a length of the catheter body, the outer body wall including a drainage aperture at the distal end for communication with the proximal end through the inner drainage lumen, the outer wall further including a pair of approximating apertures; an inflatable balloon positioned at the distal end of the catheter body, a pair of tissue approximating structures disposed within the hollow central channel, each tissue approximating structure including a hub, a deflector and a set of protruding tines; and a pair of spaced apart radiographic markers positioned on the outer body wall, wherein alignment of each radiographic marker with the corresponding hub of the corresponding tissue approximating structure is indicative of the protruding tines being in a fully retracted disposition within the inner body wall.
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Specification