Apparatus and methods for sealing a vascular puncture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/08
A61F-002/92
A61B-017/00
A61B-017/22
출원번호
US-0770573
(2010-04-29)
등록번호
US-8852230
(2014-10-07)
발명자
/ 주소
Sawhney, Amarpreet S.
Khosravi, Farhad
Pai, Suresh S.
Sershen, Scott R.
출원인 / 주소
Incept LLC
대리인 / 주소
English, William A.
인용정보
피인용 횟수 :
2인용 특허 :
129
초록▼
Apparatus and methods for sealing a puncture through tissue or otherwise treating a body lumen of a patient. The carrier includes at least one, but not all, of the adherent layer components required to form a tacky or sticky adherent layer on the carrier. The remaining adherent layer precursor(s) ar
Apparatus and methods for sealing a puncture through tissue or otherwise treating a body lumen of a patient. The carrier includes at least one, but not all, of the adherent layer components required to form a tacky or sticky adherent layer on the carrier. The remaining adherent layer precursor(s) are delivered to the carrier in situ to form a sticky and/or tacky adherent layer on the carrier that enhances the attachment and retention of the carrier to tissue surrounding a target treatment location in which the carrier is delivered. The carrier may include hydrogel and/or other porous material, e.g., for releasing one or more agents carried by the carrier at the treatment location.
대표청구항▼
1. A system for sealing a puncture extending through tissue, comprising: a cartridge comprising a tubular member sized for insertion into a puncture;a carrier carried within the tubular member and having a predetermined shape and sized for delivery into the puncture, the carrier formed from material
1. A system for sealing a puncture extending through tissue, comprising: a cartridge comprising a tubular member sized for insertion into a puncture;a carrier carried within the tubular member and having a predetermined shape and sized for delivery into the puncture, the carrier formed from material configured to expand upon exposure to an aqueous physiological environment to occlude the puncture and carrying at least one adherent layer component;a delivery device comprising at least one additional adherent component therein and configured for delivering the at least one additional adherent layer component to the carrier in situ; andwherein contact between the at least one adherent layer component and the at least one additional adherent layer component in situ causes them to react with one another to create an adherent layer on the carrier,wherein the carrier has a lumen extending between ends of the carrier, the system further comprising a positioning member extending through the carrier lumen and the cartridge, the positioning member comprising an expandable positioning element on a distal end thereof beyond the cartridge, the positioning element expandable from a contracted condition for advancement through the puncture into the blood vessel and an expanded condition for preventing the carrier from being deployed within the blood vessel. 2. The system of claim 1, wherein the carrier comprises a bioabsorbable mass. 3. The system of claim 1, wherein the at least one adherent layer component comprises at least one of a first hydrogel precursor, a second hydrogel precursor, and an activating agent, and wherein the at least one additional adherent layer component comprises the other of the first hydrogel precursor, the second hydrogel precursor, and the activating agent that are not carried by the carrier, the first and second hydrogel precursors combining to create a hydrogel in the presence of the activating agent. 4. The system of claim 3, wherein the activating agent comprises a pH adjusting agent. 5. The system of claim 4, wherein one of the at least one adherent layer component and the at least one of additional adherent layer component further comprises ester-terminated polymer. 6. The system of claim 1, wherein the at least one adherent layer component comprises at least one of an amine-terminated polymer and an ester-terminated polymer. 7. The system of claim 6, wherein the at least one additional adherent layer component comprises the other of the amine-terminated polymer and the ester-terminated polymer. 8. The system of claim 6, wherein one of the at least one adherent layer component and the at least one of additional adherent layer component further comprises sodium borate. 9. The system of claim 1, wherein the at least one adherent layer component comprises an amine-terminated polymer. 10. The system of claim 9, wherein the amine-terminated polymer comprises a polypeptide. 11. The system of claim 1, wherein the at least one adherent layer component comprises an amine-terminated polymer and the at least one additional adherent component comprises sodium borate. 12. The system of claim 1, wherein the at least one adherent layer component comprises an ester-terminated polymer and the at least one addition adherent layer component comprises sodium borate. 13. The system of claim 1, wherein the carrier comprises a rolled sheet having a generally circular cross-sectional shape. 14. A system for sealing a puncture extending through tissue to a blood vessel, comprising: a cartridge comprising a tubular member sized for insertion into a puncture and a pusher member slidably disposed within the tubular member;a carrier disposed within the tubular member distal to the pusher member having a predetermined shape and size for sealing a puncture extending through tissue to a blood vessel, the carrier formed from material configured to expand upon exposure to an aqueous physiological environment to occlude the puncture and carrying at least one adherent layer component;a delivery device comprising at least one additional adherent component therein and configured for delivering the at least one additional adherent layer component to the carrier in situ via the cartridge; andwherein contact between the at least one adherent layer component and the at least one additional adherent layer component in situ causes them to react with one another to create an adherent layer on the carrier,wherein the carrier has a lumen extending between ends of the carrier, the system further comprising a positioning member extending through the carrier lumen and the cartridge, the positioning member comprising an expandable positioning element on a distal end thereof beyond the cartridge, the positioning element expandable from a contracted condition for advancement through the puncture into the blood vessel and an expanded condition for preventing the carrier from being deployed within the blood vessel. 15. The system of claim 14, wherein the delivery device comprises a syringe coupled to at least one of the tubular member and the pusher member for delivering the at least one additional adherent layer component to the carrier. 16. The system of claim 14, wherein the at least one adherent layer component comprises at least one of a first hydrogel precursor, a second hydrogel precursor, and an activating agent, and wherein the at least one additional adherent layer component comprises the other of the first hydrogel precursor, the second hydrogel precursor, and the activating agent that are not carried by the carrier, the first and second hydrogel precursors combining to create a hydrogel in the presence of the activating agent. 17. The system of claim 14, wherein the carrier comprises a rolled sheet having a generally circular cross-sectional shape. 18. The system of claim 14, wherein the carrier is bioabsorbable. 19. A system for sealing a puncture extending through tissue to a body lumen, comprising: a generally cylindrical core having a size and shape for delivery into the puncture, the core comprising bioabsorbable material configured to expand upon exposure to an aqueous physiological environment to occlude the puncture and carrying at least one adherent layer component;a delivery device comprising at least one additional adherent component therein and configured for delivering the at least one additional adherent layer component to the core in situ; andwherein contact between the at least one adherent layer component and the at least one additional adherent layer component in situ causes them to react with one another to create an adherent layer on the core to enhance retention of the expanded core within the puncture,wherein the core has a lumen extending between ends of the core, the system further comprising a positioning member extending through the core lumen, the positioning member comprising an expandable positioning element on a distal end thereof, the positioning element expandable from a contracted condition for advancement through the puncture into the blood vessel and an expanded condition for preventing the core from being deployed within the blood vessel. 20. The system of claim 19, wherein the core comprises a rolled sheet having a generally circular cross-sectional shape.
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