Methods and devices for removing obstructing material from the human body
AssigneeCardioprolific Inc.
InventorMichael P. Wallace
Life of this patent
Estimating the term…
Abstract
A device for removing obstructive material from a patient may include an elongate rotational member having a distal end and a proximal end, an internal irrigation catheter at least partially surrounding the rotational member, and an aspiration catheter at least partially surrounding the rotational member and the irrigation catheter. The distal portion of the rotational member is configured to change compliance of the obstructive material and facilitate obstructive material aspiration outside the patient.
Claims21
A device for removing obstructive material from a patient, the device comprising:
- an elongate rotational member having a distal end, a proximal end and a longitudinal axis wherein the distal end is radially offset from the longitudinal axis;
- an internal irrigation catheter at least partially surrounding the rotational member;
- an aspiration catheter at least partially surrounding the rotational member and the irrigation catheter;
- and
- a motor having a motor shaft that is coupled to the proximal end of the elongate rotational member, wherein the motor shaft is configured to rotate the proximal end of the elongate rotational member in an orbital manner about a longitudinal axis defined by a center of rotation of the motor shaft and to simultaneously reciprocate the elongate rotational member axially in a direction parallel to the longitudinal axis,
- wherein a distal portion of the rotational member is configured to change compliance of the obstructive material and facilitate obstructive material aspiration outside the patient.
A device for removing obstructive material from a human body, the device comprising:
- a rotational member having a proximal portion and a distal portion, wherein the rotational member includes at least two or more bends;
- a motor coupled to the proximal portion of the rotational member via a motor shaft, wherein the motor is configured to rotate the motor shaft in an orbital manner so that the proximal portion of the rotational member orbits about a longitudinal axis defined by a center of rotation of the motor shaft and so that the rotational member simultaneously reciprocates axially and parallel to a longitudinal axis of the rotational member;
- an aspiration catheter disposed over the rotational member;
- and
- means to deliver irrigation inside the aspiration catheter.
A device for removing obstructing matter from a human body, the device comprising:
- an elongate rotational member comprising a proximal end, a distal end and a longitudinal axis;
- an aspiration catheter;
- a motor coupled to the proximal end of the elongate rotational member via a motor shaft, wherein the motor shaft is coupled to the elongate rotational member via a converter that creates a non-zero angle between the elongate rotational member and a longitudinal axis defined by a center of rotation of the motor shaft, wherein the converter is configured to simultaneously rotate so that the proximal end of the elongate rotational member orbits about the longitudinal axis of the motor shaft and so that the elongate rotational member simultaneously reciprocates axially along the longitudinal axis of the elongate rotational member;
- and
- an irrigation catheter.
Dependencies are inferred from the claim text.