摘要:
Apparatus and methods for retrieving a vascular filter from vessel from a vessel are provided wherein a retrieval adapter is delivered to a teatment site concurrently along with an interventiona ldevice to reduce the number of steps required to remove the vascular filter. The retrieval adapter also reduces the possibility of entangling the vascular filter with a stent disposed within the vessel during removal of the vascular filter. A separate retrieval catheter is also described for use in conjunction with the retrieval adapter.
摘要:
Apparatus (20) and methods are provided for use in filtering emboli from a vessel and/or performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops (24) connected near a distal end (23) of a guide wire, each support hoop (24) having an articulation region, and a blood permeable sac (28) affixed to the support hoop (24) or hoops to form a mouth of the blood permeable sac (28). The mouth of the sac (28) closes when the apparatus (20) is collapsed for removal to prevent material from escaping from the sac (28).
摘要:
Apparatus (20) is provided for use in filtering emboli from a vessel (17) such as the ascending aorta, wherein a vascular device comprises a support hoop (24) having an articulation region (26) connected near a distal end (23) of an elongated member, a blood permeable sac (28) affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac, a guide wire (22), and a delivery sheath. The articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.
摘要:
Apparatus (20) is provided for use in filtering emboli from a vessel; and/or performing thrombectomy, and embolectomy. A vascular device (50) comprises one or more support hoops (263, 264) connected near a distal end of a guide wire (252), and a blood permeable sac (258) affixed to the support hoop or hoops to form a mouth of the blood permeable sac. The mouth of the sac closes when the apparatus is collapsed for removal to prevent material from escaping from the sac.
摘要:
Apparatus (20) is provided for use in filtering emboli from a vessel (17) such as the ascending aorta, wherein a vascular device comprises a support hoop (24) having an articulation region (26) connected near a distal end (23) of an elongated member, a blood permeable sac (28) affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac, a guide wire (22), and a delivery sheath. The articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.