A graft compression system for compressing soft tissue grafts used in connection with reconstructive surgery on the anterior cruciate ligament (ACL). The graft compression system includes a compression chamber having an elongate hollow shaft body having two ends that are threaded to mate with correspondingly threaded collet nuts. Collets are removably inserted into, and engage, the collet nuts fastened to opposing ends of the compression chamber A surgical graft may be inserted into a hollow compression tube having a lumen with a compressible diameter, said compression tube being sized for insertion into the collets and compression chamber. When such collet nuts are tightened by a user of the graft compression system, the inner diameters of the respective collet nuts nested within such collet nuts are decreased, causing the diameter of the lumen of the hollow compression tube to in turn be decreased and compress the surgical graft within.

A crimper includes atop iris shell defining atop iris channel. The crimper also includes abase iris shell coupled to the top iris shell at a pivot connection, the base iris shell defining a base iris channel. The top iris shell is configured to rotate about the pivot connection relative to the base shell from an open state to a closed state. When in the open state, the base iris channel is exposed for loading the expandable medical device. When in the closed state, the top iris channel and the base iris channel define a crimper chamber. The crimper also includes a handle configured to operate the clamshell crimper. The actuation of the handle decreases a volume of the crimper chamber to transition the expandable medical device from the uncompressed state to the compressed state.

Disclosed herein is a storage container for an expandable prosthetic heart valve that crimps the valve upon opening the container and removal of the valve from the container. The container includes a housing sized to receive the heart valve in its expanded configuration and a crimping mechanism. The crimping mechanism is incorporated into the container and engages the heart valve so as to operably convert the heart valve from its expanded configuration to its smaller crimped configuration upon opening the container and removing the valve.

Described here are delivery devices for delivering one or more implants to the body, and methods of using. The delivery devices may deliver implants to a variety of locations within the body, for a number of different uses. In some variations, the delivery devices have a cannula with one or more curved sections. In some variations, a pusher may be used to release one or more implants from the cannula. In some variations, one or more of the released implants may be a self-expanding device. Methods of delivering implants to one or more sinus cavities are also described here.

Disclosed herein is a method of crimping a prosthetic heart valve using a compact crimping mechanism. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.

Systems and devices for crimping a medical device and associated methods are disclosed herein. A crimping device configured in accordance with embodiments of the present technology can include, for example, a frame including a stationary plate, a movable member, and a plurality of blades arranged to form a channel and each including a pin that projects through a slot on the movable member and a corresponding slot on the stationary plate. The crimping device can be actuated to move the movable member relative to the stationary plate to drive the pins along paths defined by the slots to thereby drive the blades radially inward to crimp a medical device positioned within the channel.

A device for radially compressing a stent may include a housing including a central opening and a first iris positioned adjacent the housing. The first iris includes a first circumferential ring and a first plurality of arms extending radially inward from the first circumferential ring to define a first central opening. The device may include a second iris axially offset from the first iris and including a second circumferential ring and a second plurality of arms extending radially inward from the second circumferential ring to define a second central opening. Rotation of the circumferential ring(s) relative to the housing changes a size of their respective central opening(s). The plurality of arms may shift between a first configuration and a second configuration via rotation of the circumferential ring(s) relative to the housing.

A device for compressing a stent may include a housing extending along a central longitudinal axis, a first threaded member and a second threaded member, a first iris and a second iris, and a compressor element disposed between the second iris and the second threaded member. The first iris includes a first ring extending transverse to the axis and a first plurality of arms extending from the first ring parallel to the axis. The first plurality of arms defines a first central opening and rotation of the first threaded member changes a size of the first central opening. The second iris includes a second ring extending transverse to the axis and a second plurality of arms extending from the second ring parallel to the axis. The second plurality of arms defines a second central opening and rotation of the second threaded member changes a size of the second central opening.

Devices and methods for crimping a prosthetic heart valve onto a delivery device are described. In some embodiments, valves are crimped over an inflatable balloon and between proximal and distal shoulders mounted on a shaft inside the balloon. Crimping methods can include multiple compression steps with the valve located in different axial positions relative to the crimping jaws at each different step. In some methods, the valve may extend partially outside of the crimping jaws during certain crimping steps, such that the crimping force is only applied to the part of the valve that is inside the jaws. Exemplary crimping devices can include two or more adjacent sets of jaws that close down to different inner diameters, such that different parts of a valve get compressed to different outer diameters at the same time during a single crimping step.

Described herein are systems and methods for the treatment of branching blood vessels. The system can be introduced percutaneously or by surgical cutdown into a patient's arterial system. The bifurcation from the aorta to the iliac arteries (aortic bifurcation) is used as an example of a branching blood vessel which can be treated with the systems described herein. Also, described herein are methods for assembling the medical devices.