Depuy Synthes Products, Inc.

Synthes Usa, LLC

41medical Ag

Other

Synthes Gmbh

41hemiverse Ag

Robert Frigg

Beat Lechmann

Tom Overes

Andreas Appenzeller

Silas Zurschmiede

Cyril Voisard

Ross Hamel

Reto Nardini

Claude Mathieu

Paul Pavlov

Roger Buerki

Stefan Schwer

Urs Hulliger

Dieter Schmidli

Nicolas Bouduban

Dominique Burkard

Robert Mathys

Konrad Schaller

Elliott A Gruskin

Lawton Laurence

Sean Hamilton Kerr

Thomas R Keyer

Edward J McShane, Iii

Mark T Fulmer

Joshua McManus

Patrick Burki

Joseph Capozzoli

David A Armbruster

Eric McDivitt

Daniel Fluri

Max Aebi

Daniel Vennard

Stefan Saladin

Thierry Stoll

Samuel Leuenberger

Justin Coppes

Jamie Manos

Jens Richter

Christof Dutoit

Markus Buettler

Markus Hehli

Stephan M Perren

Alfred Niederberger

Philippe Lindenmann

Philippe Gedet

Armin Studer

Nigel G Smith

Michael Mayer

Johannes F Schlapfer

Franco Cicoira

André Schlienger

Geoffrey Flexner

Harald Saner

Stuart Weikel

Roger Bürki

Robert Schavan

Christian Brunner

Adrian Baumgartner

Carl Peter Cornelius

Eric Hattler

Rolf Schneider

Gregor Feigenwinter

Paul Gisin

Marcel Fuhrer

Robert Ferus

Ladislav Nagy

Robert M Rauker

Walter Widmer

Andre Schlienger

Martin Schnider

Philippe Gédet

Thomas Overes

Paul F Heini

Michael Wagner

Elena Barrios

Stephan Küppers

Alfred Benoit

Florian Beutter

Simon Stucki

Goetz Thorwarth

Yvonne Schumacher

Ronald Schwyn

Peter Steiger

Thomas Amrein

Stephen M Perren

Elliot A Gruskin

Simone Volzer

Mario Gago

Peter Brunner

Linda Trebing

Peter D&auml;scher

Pascal Schori

Roger Burki

Thomas Kuenzi

Bruno Läng

Christoph Fuerst

Christopher Stabley

Marco Spichiger

Daniel Odermatt

Beat Spörri

The invention concerns a bone plate system comprising: a bone fastening element comprising a shaft with a first thread, the fastening element further comprising a head with a second thread on its outer surface, the outer surface having a first hardness; and a bone plate having a second hardness which is smaller than the first hardness, the bone plate comprising a through hole for receiving the bone fastening element. The head is oxygen diffusion hardened.

Bone plate system comprising a fastening element having a hard surface

The present invention is directed to a system and method for performing tissue, preferably bone tissue manipulation. The system and method may include implanting markers on opposite sides of a bone, fractured bone or tissue to facilitate bone or tissue manipulation, preferably in-situ closed fracture reduction. The markers are preferably configured to be detected by one or more devices, such as, for example, a detection device so that the detection device can determine the relative relationship of the markers. The markers may also be capable of transmitting and receiving signals. An image may be captured of the bone or tissue and the attached markers. From the captured image, the orientation of each marker relative to the bone fragment may be determined. Next, the captured image may be manipulated in a virtual or simulated environment until a desired restored orientation has been achieved. The orientation of the markers in the desired restored orientation may then be determined. The desired relationship between markers may then be programmed into, for example, the detection device. Next, actual physical reduction and/or manipulation of the bone may begin. During the manipulation procedure, the orientation of the markers may be continuously monitored and when the markers substantially align with the virtual or simulated orientation of the markers in the desired restored orientation, an indicator signal is transmitted.

Simulated bone or tissue manipulation

The invention concerns a bone plate system comprising: a bone fastening element comprising a shaft with a first thread with a first lead length, the fastening element further comprising a head with a second thread on its outer surface, the second thread having a second lead length, the outer surface having a first hardness; and a bone plate with a second hardness which is smaller than the first hardness, the bone plate comprising a non-threaded through hole in a non-assembled state for receiving the bone fastening element, the hole comprising a first hole portion with a first three-dimensional shape and a second hole portion with a second, different three-dimensional shape. The first lead length substantially equals the second lead length, and the second thread is arranged to irreversible deform the wall of the hole to form a female thread on the wall.

Variable angle bone plate system

A device for bone fixation comprising: a bone plate () which has a plate hole () suitable for receiving a bone screw (), the plate hole () having an inner wall () made of a material which has a hardness H; and a hollow cylinder- or hollow cone-shaped insert which is mounted in the plate hole (), at least partially abuts the inner wall () and is suitable for accommodating the head () of a bone screw (), the insert () being arranged in the plate hole () such that it is secured against rotation and consisting of a material that has a hardness H&#x3c;H.

Device for bone fixation

An implant assembly includes a first implant member, a second implant member, and a contractible element that is connected between the first and second implant members. The first implant member is configured to be placed against a first bone portion, and the second implant member is configured to be placed against a second bone portion. The contractible element is fixed at a first end to one of the first and second implant members, and movable at a second end with respect to one of the first and second implant members so as to induce tension in the suture, thereby providing a compressive force against the first and second bone portions. The second end can then be fixed with respect to the first and second implant members. The contractible element can contract in length in response to bodily fluids, thereby ensuring adequate post-operative compression. An instrument is also disclosed that is configured to implant the first and second implant members adjacent the first and second bone portions, respectively.

Implants

A drug-impregnated sleeve for encasing a medical implant is provided. In one embodiment, the sleeve may include a body made of a biologically-compatible material that defines an internal cavity configured to receive the medical implant. In one embodiment, the biologically-compatible material is bioresorbable. The body may include a plurality of apertures, such as perforations or holes, extending from the cavity through the body. The sleeve may further include a first end, a second end, and a drug impregnated into the resorbable sheet. In one possible embodiment, the first end of the sleeve may be open for receiving the medical implant therethrough and the second end may be closed. The implant may be encased in the sleeve and implanted into a patient from which the drug is dispensed in vivo over time to tissue surrounding the implantation site. In one embodiment, the body is made from at least one sheet of a biologically-compatible material.

Drug-impregnated encasement

A fixation device for treating an epiphyseal fracture, comprises a shaft extending longitudinally along a central axis from a first end to a second end configured to slidably engage a bone implant opening and a having a maximum radius r and a spherical head element attached to the first end of the shaft and having a radius R&#x3e;r, the spherical head element configured to be inserted into a fragmented portion of bone such that the fragmented portion rotates about the spherical head element relative to the central axis of the shaft.

Fixation device for treating a bone fracture

An intervertebral prosthesis or disk prosthesis comprising a front side, a rear side, an upper side which can be placed on the base plate of vertebral body, a lower side which can be placed on the base plate of a vertebral body, a right side, a left side, a cavity which can receive a fluid hydraulic osteocementum, an opening in the cavity and several outlets out from the cavity. The total of the transversal surfaces of the outlets Son the front side, the total of the transversal surfaces of the outlets Son the rear side, the total of the transversal surfaces of the outlets Son the right side and the total of the transversal surfaces of the outlets on the left side satisfy the following conditions: S&#x3e;Sor S&#x3e;Sor S&#x3e;Sor S&#x3e;S.

Intervertebral prosthesis or disk prosthesis

An expandable implant includes an implant body defining an internal void, the implant body including a plurality of interconnected linkages. A first plurality of the linkages has an expansion characteristic that is different from a second plurality of the linkages. An expandable bladder is sized to be disposed in the internal void. The bladder defines a bore configured to receive an expansion material, such that the expansion material applies an expansion force against the bladder, which thereby applies the expansion force against the implant body so as to cause the first linkage to expand greater than the second linkage. The expandable implant can be placed in a fracture location so as to restore height to a fractured target bone.

Expandable bone implant

A device is for anchoring a suture to a bone. The device includes a suture engaged with an elastically deformable ring biased toward an unstressed state in which an outer diameter of the ring is D. The ring is compressible for insertion through a hole in a bone stabilization device having a diameter smaller than the diameter D.

Device for anchoring a suture

An artificial joint implant () comprising a first element () with a socket () and a second element () with a ball head (), wherein said ball head () is insertable in said socket () such as to form a ball-and-socket connection between said first element () and said second element (), and the movement of said ball head () in said socket () is restricted by means of a protrusion () engaged in a groove (), whereby said protrusion () has a central axis Aand is protruding from the surface of said socket () and said groove () is provided on the surface of said ball head () or vice versa; &#x2014;said groove () is positioned along a great circle of said ball head () or of said socket (), &#x2014;said protrusion () has a shape allowing rotation of the protrusion around its central axis Awhen received in the groove (); and&#x2014;the surface roughness of the protrusion () and/or of the groove () is at most 25 micrometers.

Artificial joint implant

An expandable spinal implant assembly for insertion between two adjacent vertebral bodies includes a first body with a first superior endplate and a first inferior endplate, which are connected together. A strut is comprised by said first body and connects with one of said endplates, said strut including a first threaded through bore with a central axis. The spinal implant assembly further includes a substantially hollow second body having a second superior endplate and a second inferior endplate, and is engaged within said first body. At least one track is arranged on a second top inside face of said second superior endplate and/or on a second bottom inside face of said second inferior endplate, said track being oriented at an acute angle relative to the central axis of said first threaded through bore when said substantially hollow second body is at least partially engaged with said first body.

Expandable spinal implant

Intervertebral implant () comprising (i) a first elongated implant member () with a longitudinal axis (), an upper surface () and a lower surface () for apposition to the endplates of two adjacent vertebrae, and with a lateral circumferential surface () and (ii) a second elongated implant member () with a longitudinal axis (), an upper surface () and a lower surface () for apposition to the same endplates and with a lateral circumferential surface (). Said elongated implant members () are rotatably coupled to a central body () for rotation in a central plane (essentially parallel to said upper and lower surfaces. Further, a) said first and second elongated implant members () comprise each an inner end portion () which comprises a segment of a toothed wheel () with gear teeth () and with an axis of rotation () essentially orthogonal to the central plane of the intervertebral implant; and a free outer portion (); and whereby said free outer portions () of said first and second elongated implant members () are rotatable around the axis of rotation () of the segment of a toothed wheel () of their respective inner end portions ().

Intervertebral implant

Growing community of inventors

Bettlach, Switzerland

Robert Frigg