Patent ID: 8864791

Claim:
An aspiration catheter system comprising: a first catheter including a first proximal end, a first elongated body, a first distal end, and a first lumen extending through the first elongated body from the first proximal end to the first distal end, the first proximal end comprising a fitting that defines a first opening and a second opening, the first opening being D-shaped to form a first key joint component, and the second opening being D-shaped to form a second key joint component; a second catheter including a second elongated body, a second distal end, a second proximal end, a second lumen extending through the second elongated body to the second distal end, a pre-formed bend proximal to the second distal end, and a third key joint component that corresponds with the first key joint component, the third key joint component being defined by a D-shaped cross-section of the second catheter that corresponds to the D-shape of the first opening of the first key joint component; and a third catheter including a third elongated body, a third distal end, a third proximal end, a third lumen extending through the third elongated body, a pre-formed bend proximal to the third distal end, and a fourth key joint component that corresponds with the second key joint component, the fourth key joint component being defined by a D-shaped cross-section of the third catheter that corresponds to the D-shape of the second opening of the second key joint component, wherein the first key joint component and the third key joint component are configured to be coupled together when the second catheter is slidably disposed within the first catheter such that a rotational orientation of the second catheter is fixed relative to a rotational orientation of the first opening, wherein the second key joint component and the fourth key joint component are configured to be coupled together when the third catheter is slidably disposed within the first catheter such that a rotational orientation of the third catheter is fixed relative to the rotational orientation of the second opening, wherein the pre-formed bend of the second catheter extends at a non-zero angle relative to a longitudinal axis of the first catheter when the second distal end is extended from the lumen of the first catheter, and wherein the pre-formed bend of the third catheter extends at a non-zero angle relative to a longitudinal axis of the first catheter when the third distal end is extended from the lumen of the first catheter.