초록 ▼

An absorbable and expandable closure member used to occlude or exclude a body lumen or cavity, such as a blood vessel, fallopian tube, duct, aneurysmal sac, etc., comprising a closure member comprising one of more sheets of a biomaterial that are rolled, stacked, or folded to form a multilayer const

An absorbable and expandable closure member used to occlude or exclude a body lumen or cavity, such as a blood vessel, fallopian tube, duct, aneurysmal sac, etc., comprising a closure member comprising one of more sheets of a biomaterial that are rolled, stacked, or folded to form a multilayer construct of a generally cylindrical configuration for deployment through a delivery system, either as a singularly or part of a multiplicity of closure members. The biomaterial is derived from a source material, such as small intestinal submucosa or another remodelable material (e.g., an extracellular matrix) having properties for stimulating ingrowth of adjacent tissue into the biomaterial deployed within the bodily lumen. The closure member is deployed to the bodily lumen from a delivery sheath, cartridge, and/or over a inner guiding member, such as a wire guide or catheter.

대표청구항 ▼

1. A method for closing a passageway in a body of a patient, comprising: providing a closure device suitable for delivery to the body passageway, said closure device comprising a remodelable collagenous extracellular matrix sheet material, the extracellular matrix sheet material being isolated as a

1. A method for closing a passageway in a body of a patient, comprising: providing a closure device suitable for delivery to the body passageway, said closure device comprising a remodelable collagenous extracellular matrix sheet material, the extracellular matrix sheet material being isolated as a sheet material from a collagenous-based tissue source, the remodelable collagenous extracellular matrix sheet material being rolled or folded to provide a closure device construct in which the remodelable collagenous extracellular matrix sheet material spans the entirety of the length of the closure device construct and provides extracellular matrix material extending across the full width of the closure device construct prior to delivery with adjacent layers of the extracellular matrix sheet material contacting one another in the construct, the closure device construct being sized to occlude the passageway and the remodelable collagenous extracellular matrix sheet material being effective upon implantation of the closure device construct to provide new tissue growth in the body passageway for filling the passageway with tissue of the patient, wherein the isolated extracellular matrix sheet material has not been subjected to crosslinking; andinserting the closure device in the passageway. 2. The method of claim 1, wherein said inserting comprises delivering the closure device into the body passageway in a delivery sheath lumen. 3. The method of claim 1, wherein said inserting comprises delivering the closure device into the body passageway over a guide wire. 4. The method of claim 1, wherein the extracellular matrix sheet material is effective to stimulate angiogenesis in the patient. 5. The method of claim 1, wherein the closure device consists essentially of the extracellular matrix sheet material. 6. The method of claim 1, wherein the extracellular matrix sheet material comprises submucosal tissue. 7. The method of claim 1, wherein the construct includes multiple layers of the extracellular matrix sheet material providing a generally cylindrical configuration. 8. The method of claim 2, wherein the body passageway is a fallopian tube, vas deferens tube or gastroenteric fistula. 9. The method of claim 8, wherein the closure device includes a rolled amount of the extracellular matrix sheet material providing a generally cylindrical shape. 10. The method of claim 1, wherein the extracellular matrix sheet material comprises submucosal tissue. 11. The method of claim 1, wherein the construct includes multiple layers of the extracellular matrix sheet material providing a generally cylindrical configuration. 12. The method of claim 1, wherein the bodily passageway is a fallopian tube. 13. The method of claim 1, wherein the bodily passageway is a vas deferens tube. 14. The method of claim 1, wherein the bodily passageway is an extravascular fistula. 15. The method of claim 1, wherein the bodily passageway is a vascular vessel. 16. The method of claim 1, wherein the adjacent layers of the extracellular matrix sheet material are substantially uninterrupted across the width of the closure device construct. 17. The method of claim 16, wherein the remodelable collagenous extracellular matrix sheet material is rolled to provide the device construct, and wherein the device construct is formed by rolling and compressing the remodelable collagenous extracellular matrix sheet material. 18. The method of claim 1, wherein the remodelable collagenous extracellular matrix sheet material is rolled to provide the device construct, and wherein the remodelable collagenous extracellular matrix sheet material is stabilized in a compressed and generally cylindrical rolled configuration. 19. The method of claim 18, wherein the remodelable collagenous extracellular matrix sheet material is pre-wetted. 20. The method of claim 1, wherein the remodelable collagenous extracellular matrix sheet material is lyophilized. 21. The method of claim 1, wherein the remodelable collagenous extracellular matrix sheet material is folded to provide the closure device construct. 22. A method for closing a fallopian tube, vas deferens tube, extravascular fistula or gastroenteric fistula in a body of a patient, comprising: providing a closure device suitable for delivery to the body passageway, said closure device comprising a remodelable collagenous extracellular matrix sheet material, the extracellular matrix sheet material being isolated as a sheet material from a collagenous-based tissue source, the remodelable collagenous extracellular matrix sheet material being rolled or folded to provide a closure device construct in which the remodelable collagenous extracellular matrix sheet material spans the entirety of the length of the closure device construct and provides extracellular matrix material extending across the full width of the closure device construct prior to delivery with adjacent layers of the extracellular matrix sheet material contacting one another in the construct, the closure device construct being sized to occlude the passageway and the remodelable collagenous extracellular matrix sheet material being effective upon implantation of the closure device construct to provide new tissue growth in the body passageway for filling the passageway with tissue of the patient; andinserting the closure device in the fallopian tube, vas deferens tube, extravascular fistula or gastroenteric fistula. 23. A method for closing a passageway in a body of a patient, comprising: providing a closure device that includes an isolated remodelable collagenous extracellular matrix sheet material isolated as a sheet material from a collagenous-based tissue source, the remodelable collagenous extracellular matrix sheet material being rolled or folded to provide a closure device construct in which the remodelable collagenous extracellular matrix sheet material spans the entirety of the length of the closure device construct and where, prior to delivery, extracellular matrix material extends across the full width of the closure device construct with adjacent layers of the extracellular matrix sheet material situated in the center of the closure device construct, the remodelable collagenous extracellular matrix sheet material being effective upon implantation to provide new tissue growth in the body passageway for closing the body passageway with tissue of the patient, wherein said adjacent layers of the extracellular matrix sheet material contact one another in the closure device construct; andinserting the closure device in the body passageway so as to close the body passageway, wherein said inserting is conducted without advancing the closure device over a delivery device, wherein the closure device is sized and configured to close the body passageway without folding the closure device upon itself, and wherein the body passageway is a fistula. 24. The method of claim 23, wherein said adjacent layers of the extracellular matrix sheet material contact one another in the closure device construct. 25. The method of claim 24, wherein the adjacent layers of the extracellular matrix sheet material are substantially uninterrupted across the width of the closure device construct. 26. The method of claim 23, wherein the closure device construct comprises a generally cylindrical construct. 27. The method of claim 23, with the remodelable collagenous extracellular matrix sheet material being rolled to provide the closure device construct.