4 results about "Atherectomy device" patented technology

A system includes a processor circuit in communication with an intraluminal imaging device and a laser atherectomy device. An intraluminal imaging procedure is performed within a lumen with the intraluminal imaging device. The processor circuit receives the intraluminal images acquired. The intraluminal images are analyzed to determine a tissue classification for each intraluminal image. One or more laser atherectomy settings are determined for each intraluminal image based on the tissue classification. The intraluminal images and corresponding tissue classifications and laser atherectomy settings are then associated with the location at which each intraluminal image was acquired along the lumen. A laser atherectomy procedure is then performed within the same lumen. As the laser atherectomy device is moved to positions within the vessel, the laser atherectomy setting associated with each position is retrieved from the memory and automatically applied to the laser atherectomy device.

A thrombectomy or atherectomy device (10) includes a thrombectomy or atherectomy catheter (12) including a cutter (20), and a physical barrier (22, 24) disposed proximate to the cutter. In some examples, the physical barrier (22, 24) can have a stiffness effective for the physical barrier to deflect a blood vessel having a thickness less than a first predetermined thickness threshold and effective for a thrombus or atheroma on an inner wall of the blood vessel to deflect the physical barrier.

An atherectomy system may include an atherectomy device and a guidewire that is adapted to be used in combination with the atherectomy device. The atherectomy device includes a driveshaft and an atherectomy burr that is secured to the driveshaft. The guidewire includes a distal region having a distal region diameter ranging from 0.01 inches (0.254 millimeters) to 0.013 inches (0.33 millimeters) and a bending stiffness that emulates that of stainless steel having a diameter of 0.0077 inches (0.178 millimeters). The guidewire includes a proximal region having a proximal region diameter that is greater than the distal region diameter. The guidewire includes an intervening taper region. In some cases, the proximal region of the guidewire may have a bending stiffness that emulates that of stainless steel having a diameter of 0.009 inches (0.229 millimeters).

This invention belongs to the field of medical device technology and relates to a multi-stage rotary atherectomy head, a rotary atherectomy assembly, and a rotary atherectomy device. The rotary atherectomy head includes a base with multiple convex surfaces sequentially arranged along the axial direction of the base. The rotary atherectomy assembly includes a rotating shaft and a multi-stage rotary atherectomy head, with the rotary atherectomy head fixedly connected to the rotating shaft. The rotary atherectomy device includes a multi-stage rotary atherectomy head or a rotary atherectomy assembly, and further includes a power source for driving the rotation of the rotary atherectomy head. Compared with the prior art, this invention can improve the efficiency of rotary atherectomy for opening surgical sites, shorten the operation time, and reduce clinical risks.