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641 results about "Bone Anchors" patented technology

Bone anchors or suture anchors are devices which attach soft tissue to bone. This may be achieved by tieing one end of a suture to soft tissue and the other end to a device which "anchors" the suture to the bone.

Polyaxial bone anchor and method of spinal fixation

The present invention is directed to a polyaxial bone anchor for attaching a rod to a bone comprising an anchor member for attachment to the bone, a body member having a U-shaped channel for receiving the rod and a compressible recess for receiving a head of the anchor member such that the anchor member can initially polyaxially angulate with respect to the body member, a collar slidably disposed about the body member and capable of compressing the recess around the head, and a fastener capable of pressing the rod against the collar. The body member may define a first axis, an upper bounding edge, and a lower bounding edge, and the lower bounding edge may include a countersunk region to permit increased angulation of the anchor member with respect to the first axis when the anchor member is oriented toward the countersunk region. Other structures for providing increased angulation of the anchor member are disclosed as well. Further, the present invention is directed to methods of fixation of the cervical region of the spine.
Owner:SYNTHES USA

Polyaxial bone anchors with increased angulation

A polyaxial bone anchor has a locking element shaped and configured to allow an anchoring member (e.g., a screw or hook) to polyaxially rotate at large angles about a central axis of the bone anchor before compression locking the anchoring member within an anchor head.
Owner:SYNTHES USA

Implants for replacing cartilage, with negatively-charged hydrogel surfaces and flexible matrix reinforcement

ActiveUS9314339B2Strong and durableStrong and secure anchoringFinger jointsWrist jointsFiberChemical agent
A permanent non-resorbable implant allows surgical replacement of cartilage in articulating joints, using a hydrogel material (such as a synthetic polyacrylonitrile polymer) reinforced by a flexible fibrous matrix. Articulating hydrogel surface(s) are chemically treated to provide a negative electrical charge that emulates the negative charge of natural cartilage, and also can be treated with halogenating, cross-linking, or other chemical agents for greater strength. For meniscal-type implants, the reinforcing matrix can extend out from the peripheral rim of the hydrogel, to allow secure anchoring to soft tissue such as a joint capsule. For bone-anchored implants, a porous anchoring layer enables tissue ingrowth, and a non-planer perforated layer can provide a supportive interface between the hard anchoring material and the softer hydrogel material.
Owner:FORMAE

Articulating spinal fixation rod and system

The present invention relates generally to systems and methods for aligning and implanting orthopedic fixation or stabilization implants within the body. In one embodiment, the system includes at least two bone anchors, at least one of which is provided with a transverse portal and a locking member. In one aspect, the system also includes at least one linkage rod, for linking two or more bone anchors through their respective locking members. The linking rod may include at least one angularly adjustable joint, which may be fixed by actuating the locking member. The bone anchors and the linkage rod may be locked into place to form a spinal fusion or fixation prosthesis.
Owner:WARSAW ORTHOPEDIC INC

Comprehensive tissue attachment system

Bone anchors, methods for deploying anchors, and systems for attaching ligaments and tendons to bone are disclosed. The bone anchors of the present invention are operative to remain firmly positioned within a target site of bone and provide means for selectively adjusting the degree of tension to one or more sutures secured thereto. The bone anchors are further operative to be utilized to connect tendons and ligaments directly to bone, as well as may be selectively utilized to adjustably position an implant or other anatomical structure held thereby. There is further disclosed methods for deploying a bone anchor utilizing a blind procedure that is expeditious, accurate and substantially less traumatic than prior art bone deployment techniques.
Owner:GEDEBOU TEWODROS

Tack anchor systems, bone anchor systems, and methods of use

ActiveUS20080275469A1Preventing the suture from slippingEasy to placeSuture equipmentsLigamentsTissue fixingFlange
Systems, apparatuses and methods for securing tissue to bone using tack anchors, bone anchoring systems are described. The tack anchor may include a body and a securing element. The body may include one or more compressible flanges, an opening and, a cavity. The cavity may include an opening near or proximate the flanges, and be configured to receive a suture. The securing element may be configured to slide into the opening of the body to secure a portion of one or more sutures in the cavity such that the ends of the sutures are accessible through the cavity opening. In some embodiments, tack anchor tool for insertion of a tack anchor into tissue and / or bone is described.
Owner:HOWMEDICA OSTEONICS CORP

Dynamic spinal stabilization system

A dynamic stabilization construct for implantation within the spine comprises bone anchors that include a flexible portion between the bone engaging and head portions of the anchor. The head portion is configured to mate with different types of stabilization elements adapted to span between spinal motion segments. The engagement portion can also be configured for different types of fixation to a motion segment, such as within the pedicle of a vertebra. The flexible portion permits limited bending of the bone anchor beneath the level of the stabilization element. In one embodiment, the flexible portion is integrated into the body of the bone anchor in the form of hinge elements. In another embodiment, a separate flexible element, such as a spacer or spring, is interposed between the head and engagement portions. In a further embodiment, the bone anchor includes a portion having a reduced cross-section. The flexible bone anchors may be used to tailor the dynamic flexibility of spinal stabilization instrumentation at each level of the construct.
Owner:SPINEWAVE

Method and apparatus for attaching connective tissues to bone using a knotless suture anchoring device

An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone are described herein Such devices and methods permit a suture attachment that lies beneath the cortical bone surface and does not require tying of knots in the suture.
Owner:ARTHROCARE

Percutaneous system for dynamic spinal stabilization

A minimally invasive, percutaneous system that allows for dynamic stabilization of the spine is provided, together with methods of using the system. The system comprises a first bone anchoring member that is anchored in a first vertebra, and a second bone anchoring member that is anchored in a second, adjacent, vertebra. The first and second bone anchoring members include a first head portion and second head portion, respectively, that are designed to hold first and second ends of a flexible, elongated member, or cord. In certain embodiments, the cord is provided with a stiffened, relatively inflexible, end portion that is fixedly attached to the cord and that facilitates threading of the cord through the first and second head portions.
Owner:NEUROPRO TECH

Bone anchor-insertion tool and surgical method employing same

An anchor-insertion tool for securing an anchor having a suture extending therefrom to a structure within a patient's body is provided. The anchor-insertion tool comprises an elongate shaft having distal and proximal ends, an anchor-receiving tip at the distal end, at least one groove extending from the tip at least partially along the length of the shaft, and at least one depression extending about the circumference of the shaft and intersecting the groove. A loaded anchor-insertion tool is provided, along with a surgical method for employing the anchor-insertion tool. A surgical template and suture retriever are also provided.
Owner:R J & J A FAMILY LLP +1

Spinal stabilization using bone anchor and anchor seat with tangential locking feature

A stabilization system for implantation in a patient includes: a bone anchor including a head and a shaft, the shaft extending away from the head in a bone insertion direction and being operable for connection to a bone of the patient; and a tulip including: at least one channel having an opening for receiving an elongate member, the opening being oriented in a receiving direction having at least a component thereof substantially opposite to the bone insertion direction of the anchor, and (ii) a fastening mechanism operable to apply a tangential load on the elongate member to maintain the elongate member within the channel, wherein the tangential load is transverse to at least the receiving direction.
Owner:ALTUS PARTNERS

Spine fixation method and apparatus

A spine fixation assembly connecting a first vertebra to a second vertebra includes first and second mounting assemblies and a first spinal stabilization component. The first mounting assembly is configured to be attached to a first location of the first vertebra and includes a first bone anchor housing and first and second spinal stabilization component housings extending from the first bone anchor housing. The second mounting assembly is configured to be attached to a first location of the second vertebra and includes a second bone anchor housing and third and fourth spinal stabilization component housings extending from the second housing. The first spinal stabilization component includes an elongated body having a first end and a second end and is configured to connect the first mounting assembly to the second mounting assembly. The first spinal stabilization component housing is adapted to receive and connect to the first end of the spinal stabilization component and the third spinal stabilization component housing is adapted to receive and connect to the second end of the spinal stabilization component.
Owner:KIC VENTURES LLC

Multi-axial bone anchor system

InactiveUS6858031B2Improved multi-axial capabilityEase of use and stabilitySuture equipmentsInternal osteosythesisSpinal implantBiomedical engineering
A spinal implant system is disclosed for the fixation of bone segments in the spine. The system includes an elongated member, one or more bone anchor assemblies, and stabilizer members which are fitted within the elongated member. A bone anchor is attached to a bone, and the elongated member and stabilizer are fitted over the bone anchor. A rounded washer and nut having a corresponding rounded underside surface are fitted on to the bone anchor over the elongated member, and tightened. The configuration of the bone anchor assembly, including an intermediate portion of the bone anchor, the arcuate washer, and the nut, along with the configuration of the sliding support, allows multi-axial positioning of the bone anchor with respect to the elongated member at a plurality of locations along a slotted member.
Owner:SDGI HLDG

Bone Anchor With Locking Cap and Method of Spinal Fixation

ActiveUS20080294202A1Reduce the clamping processSuture equipmentsInternal osteosythesisSet screwEngineering
A bone anchor (100) for attaching a rod (108) to a bone has an anchor member (106) for attachment to the bone and an anchor head (104) having a U-shaped opening for receiving the rod. The bone anchor also includes a locking cap (102) that has a main body (900) and a set screw (1000). Advantageously, in one embodiment the locking cap preferably is designed such that a single tool can be used to lock the locking cap in place on the anchor body preferably with a 90° turn and preferably then drive the set screw to clamp the rod. The locking cap also preferably non-threadingly engages the anchor body. The anchor body preferably has an inclined surface on its top surface which elastically deflects extending tabs on the main body to secure the locking cap to the anchor body. A method of implantation and assembly of the bone anchor are also described.
Owner:DEPUY SYNTHES PROD INC

Orthopedic clamp and extension rod

A spinal implant for connecting to an elongated rod is disclosed. The spinal implant includes a yoke having a first end and a second end, the first end having a first and second rod engaging portion and a channel between the first and second rod engaging portions for encompassing a first bone anchor, and the second end being spaced apart from the first end. An extension rod is also provided which extends from the second end of the yoke parallel to the elongated rod. The first and second rod engaging portions are configured and dimensioned to receive first and second securing member for securing the elongated rod.
Owner:GLOBUS MEDICAL INC

Multiaxial connection for osteosynthesis

A multiaxial connection osteosynthesis system for the spine having a bone anchor, a connector and a connecting member. The bone anchor may be implanted into a vertebral body with a connector being attached to a head of the bone anchor. The connector includes a seat for receiving the connecting member. As the connecting member is locked into position it causes walls of the connector to inwardly deform and lock the head of the bone anchor relative to the connector.
Owner:STRYKER EURO OPERATIONS HLDG LLC

Polyaxial bone anchor with helical capture connection, insert and dual locking assembly

A medical implant assembly includes a polyaxial bone anchor having a shank, a receiver, a lower compression insert with surfaces for closely receiving an elongate connecting member and a dual closure structure that may include a single flange or helical flange. The dual closure structure independently engages the connecting member and the lower compression insert. A threaded capture connection of the bone anchor includes a shank upper surface exclusively engaging the lower compression insert and a retainer threadably attached to the shank and spaced from the upper surface, the retainer configured for polyaxial motion with respect to the receiver prior to locking.
Owner:JACKSON

Bone anchor installer and method of use

Systems, apparatuses and methods for securing tissue to bone using a bone anchoring system are described. Methods and apparatuses may allow transformation between locked and unlocked states, thereby allowing adjustment of the tension in the suture. The apparatus and / or methods may allow unidirectional movement of a suture, while preventing slippage or movement of the suture and tissue in the opposite direction. Ends of a suture may be individually tensioned to adjust positioning of a tissue with respect to a bone.
Owner:HOWMEDICA OSTEONICS CORP

Instrument and method for guiding surgical implants and instruments during surgery

An apparatus is provided for guiding a surgical implant to a bone anchor during surgery. The apparatus includes a bone anchor extender releasably attachable to the bone anchor wherein the bone anchor extender clips onto a head portion of the bone anchor to assist in guiding the surgical implant to the bone anchor.
Owner:WARSAW ORTHOPEDIC INC

Head-to-head connector spinal fixation system

A spinal fixation system comprising at least two bone anchors, a rod connecting the bone anchors and a connecting plate extending from a proximal surface of at least one of the bone anchors. A method of fixing vertebrae relative to each other comprising the steps of: implanting bone anchors in two adjacent vertebrae, each bone anchor having a rod receiving portion; placing a rod in the rod receiving portions, thereby connecting the bone anchors; threadably engaging set screws in the rod receiving portions of at least a portion of the bone anchors, thereby fixing the rod to the bone anchors; mating one end of a connecting plate to a proximal bearing surface of at least a portion of the bone anchors; and engaging a cap with at least a portion of the set screws, thereby fixing the connecting plate to the bone anchors.
Owner:DEPUY SYNTHES PROD INC

Bone anchor and deployment device therefor

A rivet-like bone anchor has a floating washer at its head that can adapt to an angled bone surface and, thereby, better secure a tissue thereto. The anchor includes a rivet, an expandable sleeve, and a washer. The rivet includes a head and an elongate body having proximal and distal ends, the head being mounted on the proximal end of the elongate body. The expandable sleeve has an inner bore adapted to receive the rivet body. The washer “floats” at a proximal end of the sleeve. As the rivet is inserted into sleeve, the sleeve expands into an interference fit with the bone. The head of the rivet, moreover, forces the floating washer into contact with the tissue at an angle that conforms to that of the underlying bone surface. A deployment tool permits the anchor to be deployed without application of unnecessary counterforce. The tool includes an outer tube, the distal end of which can hold the anchor housing, e.g., via a screw fit. A rod, which is slidably disposed within the bore of the tube, can be used to push the rivet into the expandable sleeve so that the sleeve expands into the bone, so that the floating washer is forced into position against the bone surface, and so that anchor is broken away from the housing. This can be effected, for example, by squeezing the distal ends of the outer tube and the rod together, e.g., in the manner that the end of a syringe is squeezed.
Owner:INNOVASIVE DEVICES

Snap-in washers and assemblies thereof

This invention relates to an apparatus for spinal fixation, in particular, for joining a bone anchor with spinal stabilizers such as a spinal rod or spinal plate in a polyaxial fashion. The invention is also directed to polyaxial connectors which incorporate arcuate washers. The polyaxial features of this invention are achieved preferably with snap-in washers which minimize the numbers of parts that a surgeon may have to handle during surgery.
Owner:DEPUY ACROMED INC

Method And Apparatus For Stitching Tendons

ActiveUS20130116730A1Distribute loadMaximize direct contactSuture equipmentsSurgical needlesBiomedical engineeringTendon
Methods and apparatuses for repairing a tear in soft tissue are disclosed. A method according to the principles of the present disclosure includes connecting an intermediate member to a bone anchor and placing the intermediate member on the soft tissue. The method further includes inserting a first suture through the intermediate member and the soft tissue to attach the intermediate member to the soft tissue and fixing the bone anchor to bone to secure the soft tissue to the bone.
Owner:BIOMET SPORTS MEDICINE
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