Kensey Nash Corporation

Dsm IP Assets B.v.

The Spectranetics Corporation

Kansey Nash Corporation

William T Fisher

John E Nash

Dennis M Sauro

Douglas G Evans

Charles W Dodson, Jr

Mark Eberhart

Greg A Walters

Gino Bradica

Mark Eberhardt

Gregory Walters

Joseph W Kaufmann

David E Yaeger

John Michael Henderson

H Michael Cunningham

Timothy Ringeisen

David E Yeager

Tim O'NEIL

Centrifuges are useful to, among other things, remove red blood cells from whole blood and retain platelets and other factors in a reduced volume of plasma. Platelet rich plasma (PRP) and or platelet poor plasma (PPP) can be obtained rapidly and is ready for immediate injection into the host. Embodiments may include valves, operated manually or automatically, to open ports that discharge the excess red blood cells and the excess plasma into separate receivers while retaining the platelets and other factors in the centrifuge chamber. High speeds used allow simple and small embodiments to be used at the patient's side during surgical procedures. The embodiments can also be used for the separation of liquids or slurries in other fields such as, for example, the separation of pigments or lubricants.

Centrifuge

A centrifuge device is provided for the sizing and separation of constituents of a biologic mixture, e.g., adipose tissue. The device provides for the mechanical breaking down of the fibrous structure in the tissue by centrifugation causing the tissue to pass through a mesh element, or a sizing helix, or an extrusion element, whereupon the material is reduced to a slurry. This processed material may then be separated by centrifugation into its constituents, in order to harvest the fraction containing the multipotent cells. These multipotent cells may be utilized for various medical procedures to stimulate healing and tissue regeneration.

Adipose tissue centrifuge and method of use

Disclosed are radially expanding debridement tools configured to pass through an access channel present in a first tissue of a living being, expand radially, and create a void in a second tissue of the living being upon being advanced distally through the access channel and into the second tissue while being rotated, wherein the shape of the void comprises at least one step. Further disclosed are debridement systems and methods of treating tissue defects in living beings.

Radially expanding debridement tools

A device suitable for removing material from a living being is provided, featuring at least an aspiration pump, powered by a motor. The aspiration pump and any optional infusate pump preferably feature a helical pumping mechanism, and operate at a high rate of rotation, thereby ensuring adequate pumping performance and flexibility. The helical pumping mechanism may be a helical coiled wire about a central core tube. The helical coil wire, whether together with, or independent of, the core tube, may be rotated to cause a pumping action. Additionally, a narrow crossing profile is maintained, ensuring that the device may reach more tortuous regions of the vasculature. In one embodiment, the system comprises a wire-guided mono-rail catheter with a working head mounted on a flexible portion of the catheter that can laterally displace away from the guide wire to facilitate thrombus removal. The working head may be operated to separate and move away from the guide wire to come within a closer proximity of the obstructive material to more effectively remove it from the vessel.

Thrombectomy and soft debris removal device

Various embodiments of an offset catheter are provided. In some embodiments, an offset catheter includes a guidewire tube and a catheter coupled with an elastic and/or compressible rib. The compressible rib provides an offset or separation between the catheter and the guidewire tube in its resting state. The rib has an initial resting state, but may be forced into a compressed state. When released from the compressed state, the rib returns to its resting state. An offset catheter may be compressed and slid through a sheath. When the offset catheter emerges from the sheath, the distal tip will return to its resting state providing an operation offset.

Offset catheter

Growing community of inventors

Schwenksville, PA, United States of America

William T Fisher