Spartek Medical, Inc.

Kyphon Sarl

Integrity Implants Inc.

Warsaw Orthopedic, Inc.

St. Francis Medical Technologies, Inc.

Verasonics, Inc.

Ouroboros Medical, Inc.

Other

Google Inc.

John J Flynn

Ken Y Hsu

James F Zucherman

Charles J Winslow

Henry A Klyce

Steven T Mitchell

H Adam R Klyce

Scott A Yerby

Donald L Cain

John A Markwart

John T To

Steve Mitchell

Jay A Markwart

Paul Joseph Birkmeyer

H Adam Klyce

Ronald Elvin Daigle

John Souza, Sr

Andrew Wolf

Lauren S Pflugrath

Hartmut Neven

Hartwig Adam

Ulrich Franz Buddemeier

Carl Lauryssen

Matthew Hannibal

Peter John Kaczkowski

Fernando A Brucher

Henrik C Stewenius

David Bohrer

Brian J Pflugrath

Christopher Fair

Charles A Hartjen

Laurence C Brasfield

An expansion member for distributing graft material through a cage and into an intervertebral space is provided. The expansion member has a central beam with an entry port in fluid communication with an exit port for distribution of the graft material. The central beam is inserted into a cage having a reversible collapse from an expanded state into a collapsed state, the expanded state forming a graft distribution window. The expanded state, for example, can be configured to open the graft distribution window which at least substantially closes upon the reversible collapse.

Distributing graft material from an expandable cage

An intervertebral scaffolding system is provided having a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state, the laterovertically-expanding frame having a stabilizer that slidably engages with the distal region of the laterovertically-expanding frame and is configured for retaining the laterovertically-expanding frame from a lateral movement that exceeds the expanded state. The expanded state, for example, can be configured to have an open graft distribution window that at least substantially closes upon the reversible collapse.

Methods of stabilizing an intervertebral scaffolding system

An intervertebral scaffolding system is provided having an expandable frame operable for a reversible collapse from an expanded state into a collapsed state, the expandable frame having a stabilizer, one or more tensioners, or a combination of the stabilizer with one or more tensioners. The stabilizer slidably engages with the distal region of the expandable frame and both the stabilizer and the one or more tensioners are configured for retaining the expandable frame from a lateral movement that exceeds the expanded state, and the stabilizer can include a locking element that engages with the expansion member to lock the expansion member to the stabilizer when the expansion member is fully inserted into the frame. The expanded state, for example, can be configured to have an open graft distribution window that at least substantially closes upon the reversible collapse.

Scaffolding with locking expansion member

An ultrasound transceiver that overcomes many of the deficiencies of conventional ultrasound transceivers by providing the ability to transmit high power and high frequency arbitrary waveforms with low distortion and with the ability to monitor the transmit signals through the receiver during the transmit period, the transceiver circuit having a transducer element to emit an ultrasound signal and to receive a reflected ultrasound signal, a transformer circuit having a transformer with a secondary winding coupled to the transducer element and a primary winding, an H-Bridge transmit waveform circuit coupled to the primary winding of the transformer to generate a transmit waveform signal to the transducer element via the transformer, an FET clamp coupled to the secondary winding of the transformer, and a receiver circuit having an input coupled to the FET clamp.

Ultrasound transmitter with low distortion and concurrent receive

Methods of stabilizing an inter vertebral scaffolding

An intervertebral scaffolding system is provided having a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state, the laterovertically-expanding frame having a stabilizer, one or more tensioners, or a combination of the stabilizer with one or more tensioners. The stabilizer slidably engages with the distal region of the laterovertically-expanding frame and both the stabilizer and the one or more tensioners are configured for retaining the laterovertically-expanding frame from a lateral movement that exceeds the expanded state, and the stabilizer can include a locking element that engages with the expansion member to lock the expansion member to the stabilizer when the expansion member is fully inserted into the frame. The expanded state, for example, can be configured to have an open graft distribution window that at least substantially closes upon the reversible collapse.

A method that includes transmitting coded waveforms simultaneously on multiple elements for several frames, constructing a first multi-input, single output (MISO) system from the codes to model transmit-receive paths, solving system and RF data observation by linear model theory, giving an IR set for the medium, and applying the estimates to a secondary MISO system, constructed by analogy to the first, but with pulses convenient for beamforming in the form of a focused set of single-cycle pulses for ideal focused reconstruction.

Method and system for coded excitation imaging by impulse response estimation and retrospective acquisition

Vector Doppler Imaging (VDI) improves on conventional Color Doppler Imaging (CDI) by giving speed and direction of blood flow at each pixel of a display generated by a computing system. Multiple angles of Plane wave transmissions (PWT) via an ultrasound transducer conveniently give projected Doppler measurements over a wide field of view, providing enough angular diversity to identify velocity vectors in a short time window while capturing transitory flow dynamics. A fast, aliasing-resistant velocity vector estimator for PWT is presented, and VDI imaging of a carotid artery with a 5 MHz linear array is shown using a novel synthetic particle flow visualization method.

Estimation and display for vector doppler imaging using plane wave transmissions

A staged expansion of an intervertebral scaffolding system is provided, and also include a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state. The expanded state, for example, can be configured to have an open graft distribution window that at least substantially closes upon the reversible collapse.

Staged laterovertical expansion

An intervertebral scaffolding system is provided having a rigid central beam and a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state.

Expandable scaffolding with a rigid, central beam

Stabilized laterovertically-expanding fusion cage systems with tensioner

An intervertebral scaffolding system is provided having a central beam having a proximal portion having an end, a grafting portion having a top and a bottom, a distal portion having a end, a central beam axis, a graft distribution channel having an entry port at the end of the proximal portion, a top exit port at the top of the grafting portion, and a bottom exit port at the bottom of the grafting portion. These systems can also include a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state. The expanded state, for example, can be configured to have an open graft distribution window that at least substantially closes upon the reversible collapse.

Angled, rigid intervertebral scaffolding

Stabilized, 4 beam intervertebral scaffolding system

An intervertebral scaffolding system is provided having a laterovertically-expanding frame operable for a reversible collapse from an expanded state into a collapsed state, the laterovertically-expanding frame having a stabilizer, one or more tensioners, or a combination of the stabilizer with one or more tensioners. The stabilizer slidably engages with the distal region of the laterovertically-expanding frame and both the stabilizer and the one or more tensioners are configured for retaining the laterovertically-expanding frame from a lateral movement that exceeds the expanded state. The expanded state, for example, can be configured to have an open graft distribution window that at least substantially closes upon the reversible collapse.

Laterovertically-expanding fusion cage systems

Growing community of inventors

Walnut Creek, CA, United States of America

John J Flynn