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An introducer comprises a sheath, a guide rod, and at least one wire stabilization guide. The guide rod is sized to fit within the inside diameter of the sheath. The guide rod has at least one slot along its length for releasably holding the wire stabilization guide. One or more wire stabilization g

An introducer comprises a sheath, a guide rod, and at least one wire stabilization guide. The guide rod is sized to fit within the inside diameter of the sheath. The guide rod has at least one slot along its length for releasably holding the wire stabilization guide. One or more wire stabilization guides are coupled to the sheath. In one exemplary embodiment, the wire stabilization guides are inserted into a wound site and are dimensioned so as to cause an outward stretching force on the wound site. In another embodiment, the wire stabilization guides may form a loop, so that when the sheath is approximated to a wound site, the loop is approximated to tissue surrounding the wound site to hold the sheath approximately centered on the wound site. In other embodiments, the wire stabilization guides may include a retention device to hold the sheath approximate to the wound site.

대표청구항 ▼

What is claimed is: 1. A medical device, comprising: a tubular sheath; a plurality of spaced apart wire stabilization guides affixed to said tubular sheath, said wire stabilization guides comprising elongated tubular members having at least a portion thereof extending from an end of said sheath; a

What is claimed is: 1. A medical device, comprising: a tubular sheath; a plurality of spaced apart wire stabilization guides affixed to said tubular sheath, said wire stabilization guides comprising elongated tubular members having at least a portion thereof extending from an end of said sheath; a retention device formed on said portion of at least one wire stabilization guide extending from said end of said sheath, said retention device comprising a portion of said wire stabilization guide adapted to selectively expand outwardly from said wire stabilization guide in at least one direction; and a guide rod sized to fit within said tubular sheath and having at least one slot formed along its length, said at least one slot releasably holding one respective said wire stabilization guide. 2. A medical device as claimed in claim 1, further comprising a wire moveably disposed within said wire stabilization guides, said wire being fixed to said wire stabilization guide at a point along said wire stabilization guide, wherein movement of said wire in a proximal direction causes a compression of said wire stabilization guide thereby forming said retention device. 3. A medical device as claimed in claim 2, said retention device comprising a slit on one or more sides of said tubular stabilization guides and wherein said wire being drawn proximally thereby compresses said retention device causing a portion of said stabilization guide about said slit to expand outwardly in at least one direction. 4. A medical device as claimed in claim 2, said retention device comprising one or more notch sections of said tubular stabilization guides and wherein said wire being drawn proximally thereby compresses said retention device and causes a portion of said stabilization guide about said notch to expand outwardly in at least one direction. 5. A medical device as claimed in claim 4, wherein said notch sections are generally symmetrical on either side of said tubular stabilization guide, wherein compression of said tubular stabilization guide causes folds at said notch sections. 6. A medical device as claimed in claim 2, said retention device comprising one or more filaments attached to said tubular stabilization guides and wherein said wire being drawn proximally compresses said retention device and causes said one or more filaments to expand outwardly in at least one direction. 7. A medical device as claimed in claim 1, said retention device securing said sheath to an arterial wall to prevent transverse movement of said sheath with respect to a wound site in said arterial wall. 8. A medical device as claimed in claim 1, wherein said wire stabilization guides being disposed opposite one another on said sheath approximately 180 degrees apart. 9. A medical device as claimed in claim 1, wherein said wire stabilization guides are placed into a wound site in an artery or vein such that said wire stabilization guides are transverse to a long axis of said artery or vein. 10. A medical device as claimed claim 9, wherein said wire stabilization guides urge said wound site into an elongated configuration. 11. A medical device, comprising: a tubular sheath having two wire stabilization guides, said wire stabilization guides each comprising an elongated tubular member having at least a portion thereof extending from an end of said sheath; a retention device formed on said portion of said wire stabilization guides extending from said end of said sheath, said retention device comprising a portion of said wire stabilization guide adapted to selectively expand outwardly in at least one direction and further comprising a wire having two ends threaded into said wire stabilization guides and moveably disposed within said wire stabilization guides and thus forming a loop extending from said end of said sheath; and, a guide rod sized to fit within said tubular sheath and having at least one slot formed along its length, said at least one slot releasably holding one respective said wire stabilization guide. 12. A medical device as claimed in claim 11, said retention device comprises a slit on at least one side of said tubular stabilization guides and wherein said wire being drawn proximally compresses said stabilization guides and causes a portion of said stabilization guide about said slit to expand outwardly in at least one direction. 13. A medical device as claimed in claim 11, said retention device comprising one or more notch sections of said wire stabilization guides and wherein said wire being drawn proximally thereby compresses said retention device and causes a portion of said stabilization guide about said notch to expand outwardly in at least one direction. 14. A medical device as claimed in claim 13, wherein said notch sections are generally symmetrical on either side of said tubular stabilization guide, wherein compression of said tubular stabilization guide causes folds at said notch sections. 15. A medical device as claimed in claim 11, wherein said retention device comprises one or more filaments attached to said wire stabilization guides and wherein said wire being drawn proximally compresses said retention device and causes said one or more filaments to expand outwardly in at least one direction. 16. A medical device as claimed in claim 11, said loop securing said sheath to an arterial wall to prevent transverse movement of said sheath with respect to a wound site in said arterial wall. 17. A medical device as claimed in claim 16, wherein said loop is internal within said wound site when said wire stabilization guides are placed within said wound site. 18. A medical device as claimed in claim 11, wherein said wire stabilization guides being disposed opposite one another approximately 180 degrees apart. 19. A medical device as claimed in claim 11, wherein said wire stabilization guides are placed into a wound site in an artery or vein such that said wire stabilization guides are transverse to a long axis of said artery or vein. 20. A medical device as claimed in claim 19, wherein said wire stabilization guides urge said wound site into an elongated configuration. 21. A medical device, comprising: a tubular sheath having two wire stabilization guides, said wire stabilization guides comprising elongated tubular members having at least a portion thereof extending from an end of said sheath; a selectively deployable retention device extending from the portion of said wire stabilization guide extending from said end of said sheath, said selectively deployable retention device securing said sheath to an arterial wall; and a guide rod sized to fit within said tubular sheath and having at least one slot formed along its length, said at least one slot releasably holding one respective said wire stabilization guide.