| 摘要 |
The disclosure relates to a catheter comprising a first tube (102), a second tube (108) and a third tube (104) The catheter further comprises a handle (800) having a housing (810) having a slot (812) with a length; a first linear actuator (802) located within the slot; and a sealing device (100) comprising an expandable frame formed from a plurality of wires extending from a proximal end to a distal end of the frame, wherein said expandable wire frame is at least partially encapsulated in a sealing member. The first linear actuator (802) is configured to independently advance or retract the sealing device, the first tube or the second tube. The handle (800) further comprises a second actuator (806) configured to release the sealing device after the sealing device is deployed. Said sealing device is suitable for repair of cardiac and vascular defects or tissue opening such as a patent foramen avale (PFO) or shunt m the heart, the vascular system, etc. and a particularly provides an occluder device. |
