Patent ID: 11944327
Assignee: NEURAVI LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system for retrieving an obstruction in a blood vessel, the system comprising:
an outer catheter; and
an inner clot retrieval catheter disposed within the outer catheter, the inner clot retrieval catheter comprising:
an expansile tip comprising a porous framework and an open distal mouth disposed at the distal end of the expansile tip, the expansile tip having a folded delivery state and an expanded deployed state;
a support tube proximal to the expansile tip comprising:
two longitudinally extending spines located on opposing sides of the support tube;
a plurality of loop ribs connected along the length of each of the two spines and external to each of the two spines, the loop ribs being axisymmetric with a longitudinal axis of the inner clot retrieval catheter and defining a lumen of the inner clot retrieval catheter extending therethrough; and

a cover radially disposed around at least a portion of the support tube and at least a portion of the expansile tip;

wherein the expansile tip has a radial dimension in the folded delivery state less than a maximum radial dimension of the expansile tip in the expanded deployed state;
wherein in the expanded deployed state, the expansile tip is self-expanded from the folded delivery state to project radially outwardly of the support tube with at least a portion of the expansile tip having the maximum radial dimension of the expansile tip; and
wherein the maximum radial dimension of the expansile tip is greater than an inner diameter of the outer catheter.