APPARATUS AND METHODS FOR DELIVERING HEMOSTATIC MATERIALS FOR BLOOD VESSEL CLOSURE
First Claim
1. Apparatus for sealing a blood vessel wall penetration disposed at an end of a tissue tract, said apparatus comprising:
- a shaft having a proximal end and a distal end;
an occlusion element near the distal end of the shaft, said occlusion element being shiftable between a radially contracted configuration for passage through the tissue tract and a radially expanded configuration for deployment within the blood vessel to occlude the penetration;
a hemostatic implant disposed over or adjacent to an exterior surface of the shaft proximal to the occlusion element; and
a protective sleeve retractably disposed over the hemostatic implant.
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0 Petitions
Accused Products
Abstract
Apparatus for sealing a vascular wall penetration disposed at the end of the tissue tract comprises a shaft, an occlusion element, a hemostatic implant, and a protective sleeve. The apparatus is deployed through the tissue tract with the occlusion element temporarily occluding the vascular wall penetration and inhibiting backbleeding therethrough. The hemostatic implant, which will typically be a biodegradable polymer such as collagen carrying an anti-proliferative agent or coagulation promoter, will then be deployed from the sealing apparatus and left in place to enhance closure of the vascular wall penetration with minimum scarring. The implant may be radiopaque to allow observation before release.
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Citations
38 Claims
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1. Apparatus for sealing a blood vessel wall penetration disposed at an end of a tissue tract, said apparatus comprising:
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a shaft having a proximal end and a distal end; an occlusion element near the distal end of the shaft, said occlusion element being shiftable between a radially contracted configuration for passage through the tissue tract and a radially expanded configuration for deployment within the blood vessel to occlude the penetration; a hemostatic implant disposed over or adjacent to an exterior surface of the shaft proximal to the occlusion element; and a protective sleeve retractably disposed over the hemostatic implant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for sealing a blood vessel penetration disposed at the end of a tissue tract,
providing an apparatus including a shaft, an occlusion element, a hemostatic implant disposed on an exterior surface of the shaft; -
introducing the shaft through the tissue tract to position the occlusion element in a lumen of the blood vessel and the hemostatic implant within the tissue tract, wherein the hemostatic implant is covered by a protective sleeve while the shaft is being introduced; deploying the occlusion element to inhibit blood flow from the blood vessel into the tissue tract; retracting the protective sleeve to expose the hemostatic implant; collapsing the occlusion element; and withdrawing the shaft and collapsed occlusion element past the hemostatic implant which remains in the tissue tract. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification