Apparatus and methods for positioning a vascular sheath
First Claim
1. An apparatus for introduction into an opening in a wall of a body lumen, comprising:
- a sheath having proximal and distal ends, the distal end having a size and shape for insertion into a body lumen, the distal end including first and second ports therein, the first port being disposed at a more distal location than the second port;
an elongate member disposed within the sheath, the elongate member including a distal region configured for sealingly engaging an inner surface of the sheath, the elongate member including first and second openings in the distal region, the first and second openings being alignable with the first and second ports in the sheath; and
first and second lumens extending distally from the proximal end of at least one of the sheath and the elongate member, the first and second lumens communicating with the first and second openings, respectively.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for positioning an introducer sheath includes a sheath having a distal end including first and second ports, the second port being located distally from the first port. An obturator is slidable within the sheath that includes a distal region that sealingly engages an interior surface of the sheath. The obturator includes first and second openings in the distal region that are alignable with the first and second ports in the sheath. A housing is slidable on the exterior of the sheath that releasably holds a closure element. The sheath may be inserted into an incision communicating with a blood vessel, the first and second ports providing backbleed indication of the depth of the insertion of the sheath into the vessel. The housing is actuated to deploy the closure element to engage and close the incision.
245 Citations
37 Claims
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1. An apparatus for introduction into an opening in a wall of a body lumen, comprising:
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a sheath having proximal and distal ends, the distal end having a size and shape for insertion into a body lumen, the distal end including first and second ports therein, the first port being disposed at a more distal location than the second port;
an elongate member disposed within the sheath, the elongate member including a distal region configured for sealingly engaging an inner surface of the sheath, the elongate member including first and second openings in the distal region, the first and second openings being alignable with the first and second ports in the sheath; and
first and second lumens extending distally from the proximal end of at least one of the sheath and the elongate member, the first and second lumens communicating with the first and second openings, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for delivering a vascular closure element into engagement with tissue adjacent an opening into a body lumen, comprising:
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a sheath having proximal and distal ends and an exterior surface, the sheath including an interior surface defining a first lumen extending between the proximal and distal ends, and one or more ports in the distal end communicating with the first lumen;
a housing slidably disposed on the exterior of the sheath, the housing being configured for releasably holding a closure element, the housing being actuable from a proximal end of the sheath for advancing the closure element distally during deployment of the closure element; and
an elongate member insertable into the first lumen of the sheath, the elongate member including a distal region configured for sealingly engaging the interior surface of the sheath, thereby defining an annular region between the elongate member and the sheath proximal to the distal region, the annular region communicating with the one or more ports when the elongate member is fully inserted into the sheath. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for positioning an introducer sheath in an opening in a wall of a body passage, the introducer sheath including a plurality of lumens extending distally from its proximal end and communicating with respective ports in its distal end, each port being disposed at a different distal location on the distal end, the method comprising:
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inserting the distal end of the introducer sheath through a patient'"'"'s skin towards the body passage via the opening; and
positioning the distal end with respect to the body passage until one or more of the ports enter the body passage, whereupon fluid pressure within the body passage causes fluid from within the body passage to enter the respective one or more lumens communicating with the one or more ports in the body passage, thereby providing a visual indication of depth of insertion of the introducer sheath. - View Dependent Claims (23, 24, 25)
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26. An apparatus for introduction into an opening in a wall of a body lumen, comprising:
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a sheath having proximal and distal ends, the distal end having a size and shape for insertion into a body lumen, the distal end including first and second ports therein, the second port being disposed at a more distal location than the first port; and
an elongate member disposed within the sheath, the elongate member including a distal region having a size for sealingly engaging an inner surface of the sheath, the elongate member being movable with respect to the sheath for selectively opening and closing the first and second side ports to permit fluid flow therethrough to the proximal end of the sheath. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification