Device for fragmentation of thrombi
First Claim
1. A device for fragmentation of thrombi, comprising an external catheter having, an inner lumen/an internal catheter passed through the external catheter, a torsion-resistant flexible shaft journalled in the internal catheter, and an action body connected with the flexible shaft to be fixed relative to the flexible shaft, characterized in that the internal catheter (2) is composed of a proximal and a distal part (3, 4), between which the action body (6) is arranged with the flexible shaft being (5) (6) journalled in both parts (3,4) of the internal catheter, the action body (6) being concentrically surrounded by a resiliently deformable grid body (7), comprising legs (8) by which the distal and proximal parts (3, 4) of the internal catheter are connected with each other.
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Accused Products
Abstract
Thrombi are fragmented by a rotating action body secured on a torsion-resistant flexible shaft. The shaft is journalled in two parts of an internal catheter between which the action body is located. A grid surrounding the action body is formed by curved biassed resilient legs which connect the two parts of the internal catheter together.
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Citations
8 Claims
- 1. A device for fragmentation of thrombi, comprising an external catheter having, an inner lumen/an internal catheter passed through the external catheter, a torsion-resistant flexible shaft journalled in the internal catheter, and an action body connected with the flexible shaft to be fixed relative to the flexible shaft, characterized in that the internal catheter (2) is composed of a proximal and a distal part (3, 4), between which the action body (6) is arranged with the flexible shaft being (5) (6) journalled in both parts (3,4) of the internal catheter, the action body (6) being concentrically surrounded by a resiliently deformable grid body (7), comprising legs (8) by which the distal and proximal parts (3, 4) of the internal catheter are connected with each other.
Specification