Zimmer Spine S.a.s.

Implanet, Societe Anonyme

Zimmer Spine, Inc.

Abbott Spine

Implanet

Christian Baccelli

Regis Le Couedic

Keyvan Mazda

Karl Pierre Belliard

Régis Le Couedic

Paolo Mangione

Régis Le Couëdic

A method and instrument for tensioning a flexible tie used for fastening an implant on a bony element by forming a first loop around it. In some embodiments, the instrument comprises a shaft having a distal end configured for contact with a rod, a moving part slidably engaged with the shaft, a holder connected to the moving part and configured to hold an end of the flexible tie, and a tension control member comprising a trigger that pivots relative to the moving part. In some embodiments, the method comprises coupling the end of the flexible tie to the instrument and squeezing the trigger to shorten the first loop of the flexible tie around the bony element, causing the moving part and the holder holding the end of the flexible tie to move in translation away from the distal end of the shaft, thereby exerting tension on the flexible tie.

Method and instrument for tensioning a flexible tie

This disclosure relates to a spinal implant that can provisionally retain a rod in an assembly head without having to first lock the rod relative to the assembly head. The spinal implant has a clip insert structured to retain the rod in the assembly head. The clip insert has a top portion with a cylindrical opening and extending over the cylindrical opening to cover the connection rod in part when the connection rod is engaged in the clip insert. The top portion is deformable by application of force on the connection rod to engage the connection rod with the clip insert. The clip insert and the assembly head are mechanically decoupled and can be fully received within the assembly head. The mechanical forces to which the assembly head is subjected are not transmitted to the clip insert.

Spinal implant

The present invention concerns an intersomatic implant () comprising a body () suitable for being inserted between two vertebrae () to space them a predetermined distance apart, the body () being provided on either side, respectively, with a contact surface (') with the corresponding vertebrae (). The body () is formed from an oblong part of predetermined thickness provided at a first so-called proximal end with a gripping cam () mounted movable in rotation relative to the part about an axis perpendicular to the two surfaces (&#x2032;), between two predetermined angular positions. The contact surfaces (&#x2032;) are either parallel or substantially parallel to one another, and each contact surface (&#x2032;) of the body () with a corresponding vertebra () comprises a set of curved longitudinal protrusions () which decrease in height towards the distal ends thereof.

Intersomatic implant and tool for installing such an implant

A spinal implant can be fastened on a bony element of a patient via a flexible tie. In some embodiments, the spinal implant has two jaws, each having a recess and an opening. The recess is configured to receive a portion of a rod. A portion of the flexible tie is passed through the opening and between a wall of the recess and a surface of the rod to form a loop that can be placed around the bony element. The two jaws are hinged at one end and engaged at the opposite end via a locking member. The locking member can be adjusted to simultaneously hold the jaws together in a fixed position relative to the rod and lock the flexible tie, which has been properly tensioned, in translation relative to the spinal implant.

Spinal implant with flexible tie

A vertebral attachment system and method for retaining a spinal vertebra () on a rod () employ a device () including a body () for attachment to the rod, a flexible strip () for linking the vertebra to the attachment body and a means () for adjustably locking the flexible strip on the attachment body. The attachment body () is made of a single part having a U-shaped cross-section, for passing the rod between the bottom wall () of the U and the adjustable locking means. The adjustable locking means () consists of a linking part () connecting the opposite ends of the two arms () of the U, arranged such as to compress the rod against the wall. The arms () each include a recess () opposite thereof, located on the bottom side of the U, for passing the two ends of the strip between the bottom and the rod in order to form a loop for attachment to a vertebra.

Vertebral attachment device and method

Vertebral attachment methods

A vertebral fixation device and corresponding method of fixation hold a spinal vertebra on a rod. The device has a fixation element including a component of substantially U-shaped cross section with a first branch, a bottom and a second branch. A loop is formed by a flexible band for connecting the vertebra to the component, and which passes through recesses provided in the branches. Adjustable means for immobilizing the flexible band are provided. Those means include a connector screw having a head for longitudinal immobilization of the screw with respect to the first branch a thread for screwing in the second branch. A removable sleeve for passage of the screw, insertable in the first branch, in longitudinal abutment with the head of the screw is provided and presents a chamfered part designed to cooperate with the rod to compress the band between the rod and the bottom of the component.

Vertebral fixation device and system for holding a vertebra on a rod, and method for immobilizing a loop using such a device

A vertebral fixing system suitable for being mounted on a vertebra of the spine for connecting it to a rod. The system includes: a connecting part suitable for being connected to the rod, a flexible ligature of elongate shape having two free ends suitable for connecting together the connecting part and at least a portion of a vertebra and/or a rib, and an adjustable locking member mounted on the connecting part. The connecting part defines at least one passageway for passing the ligature in such a manner that two distinct strands of the ligature can be engaged in the passageway so that the two strands of the ligature define a first ligature portion forming a loop extending from one side of the connecting part, and second and third ligature portions extending from the other side of the connecting part.

Vertebral fixing system

Vertebral attachment device

This is a system and an assembly for tensioning a flexible strip () to hold a bony element on an implant, comprising a shank () and means () for adjustably immobilizing a component () that is capable of translational movement with respect to a portion () of the device. The shank () comprises a handle () for gripping at its second end (), the portion () of the device () making an angle with the shank (), the flexible strip () having two free ends. The component () capable of movement comprises a wheel () free to rotate with respect to a pivot pin () perpendicular to the portion (), for guiding the strip () around its rounded periphery () comprising two distinct elements () for anchoring the flexible strip ().

Device for tensioning a flexible strip and assembly comprising such a device with flexible strip

The present invention relates to a vertebral fixation device () for holding a vertebra (V) on a rod (), having a body () of U-shaped or substantially U-shaped cross section, a flexible band (') for connecting said vertebra to the fixation body which is provided with slits () for passage of the band and of means (M) for adjustably blocking the flexible band against the rod in the fixation body. The flexible hand (&#x2032;) comprises a loop (&#x2032;) closed on itself and provided with a flexible lamella (&#x2032;) which is able to form a guide for passage around the vertebra and into the fixation body.

Vertebral fixation device

A device () is provided for tensioning a flexible band () used to maintain a bone element on an implant. The device includes a rod () having a first end () provided with means () for bearing on the implant, a movable part () for hooking the flexible band onto a portion () of the device, and means () for adjustably locking the movable part in translation in relation to the portion of the device. The rod () includes a gripping handle () at the second end () thereof. The aforementioned portion of the device forms an angle &#x3b1; with the rod () to which it is rigidly connected at an intermediary point, the direction of the band being altered at an angle, and the aforementioned adjustable locking means () includes manual screwing means () for actuating the movable part.

Device for tensioning a flexible band

A vertebral fixing system comprising a connecting part with two longitudinal elements coupled to each other at a first end and having mutually facing recesses for receiving a rod. A portion of a flexible ligature extends through orifices of the two longitudinal elements to define a loop opposite two free ends of the flexible ligature. The two longitudinal elements are engaged at a second end of the connecting part via a locking means. When the two longitudinal elements of the connecting part are locked at the second end of the connecting part, two strands of the flexible ligature are pinched between the rod and a wall of the mutually facing recesses of the two longitudinal elements of the connecting part, preventing the flexible ligature from moving in translation relative to the connecting part.

Growing community of inventors

Saucats, France

Christian Baccelli