Apparatus and methods for medical device expansion
AssigneeAbbott Laboratories
InventorsMilisav Obradovic, Rainer Bregulla
Life of this patent
Estimating the term…
Abstract
A mandrel usable for expanding a medical device is disclosed. The mandrel includes a first tube portion having a first lumen and a first tube diameter. A second tube portion extends from the first tube portion; the second tube portion is configured to receive a medical device. A second tube diameter is smaller than the first tube diameter. A plurality of tube segments are separated by a plurality of slots formed in the mandrel, while a second lumen is in communication with the first lumen. At least a portion of the plurality of tube segments is moveable outwardly to expand the medical device.
Claims21
A mandrel usable for expanding a medical device, the mandrel comprising:
- a first tube portion having a first lumen and a first tube diameter;
- and
- a second tube portion extending from the first tube portion, the second tube portion being configured to receive a medical device and having a second tube diameter smaller than the first tube diameter, a plurality of tube segments separated by a plurality of slots, and a second lumen in communication with the first lumen, at least a portion of the plurality of tube segments being moveable outwardly to expand the medical device.
A system for manufacturing a medical device comprising:
- a mandrel comprising:
- a first tube portion having a first lumen and a first tube diameter;
- and
- a second tube portion configured to receive a medical device, the second tube portion having a second tube diameter smaller than the first tube diameter, a plurality of tube segments separated by a plurality of slots, and a second lumen in communication with the first lumen;
- and
- an expansion member slidably receivable within at least a portion of the first lumen and the second lumen, the expansion member advanceable within the second lumen to move the plurality of tube segments radially outwardly to expand the medical device.
A system for manufacturing a stent comprising:
- a first mandrel comprising:
- a first tube portion having a first lumen and a first tube diameter;
- and
- a second tube portion configured to receive a stent, the second tube portion having a second tube diameter smaller than the first tube diameter, a plurality of tube segments separate by a plurality of slots, and a second lumen in communication with the first lumen;
- and
- a second mandrel configured similarly to the first mandrel, the second mandrel being slidably receivable within at least a portion of the first lumen and the second lumen, the second mandrel advanceable within the second lumen to move the plurality of tube segments radially outwardly to expand the stent.
A method of expanding the diameter of a medical device, the method comprising:
- positioning a first mandrel having a first tube portion and a second tube portion for receiving a medical device, a first tube portion diameter being larger than a second tube portion diameter;
- placing the medical device over a portion of the second tube portion;
- and
- inserting an expansion member within at least a portion of the first tube portion and the second tube portion, the expansion member increasing the second tube portion diameter to increase the diameter of the medical device.
Dependencies are inferred from the claim text.