23 Jul Absorbable vascular filter
Abstract
The utility model relates to the field of tissue engineering technology, in particular to an absorbable vascular filter, which comprises a supporting body and a capture net, the center of the capture net is arranged on the axis of the supporting body, the capture net is composed of at least three absorbable threads, the central points of the absorbable threads are connected with one another, both ends of every absorbable thread are connected with the supporting body, the absorbable threads are radially and symmetrically arranged from the central points to both ends in the supporting body, the diameter of the cross section of every absorbable thread is gradually reduced from both ends to the central point, and the diameter of the cross section at any position of every absorbable thread is greater than the diameter of the node of the intersection between the central points of the absorbable threads. The absorbable vascular filter has the following advantages: the absorbable vascular filter can be partially or completely self-degraded in a blood vessel as action time goes on, and the time of taking out the absorbable vascular filter is not limited; in the process of natural degradation, iatrogenic embolism which is caused by dropping blocks flowing along with blood because the blocks drop from the capture net cannot take place, and the injuries of the wall of the blood vessel caused by the mutual friction between a stent and the blood vessel are reduced.
Year: 2015
Country: CN
Doc No: 204411025