PIONEER SURGICAL TECHNOLOGY, INC. Patent applications |
Patent application number | Title | Published |
20150140116 | BONE IMPLANT MATERIALS COMPRISING CROSS-LINKED BIOACTIVE HYDROGEL MATRICES - The present invention is directed to a stabilized cross-linked hydrogel matrix comprising a first high molecular weight component and a second high molecular weight component that are covalently linked, and at least one stabilizing or enhancing agent, wherein the first high molecular weight component and the second high molecular weight component are each selected from the group consisting of polyglycans and polypeptides. This stabilized hydrogel matrix may be prepared as bioactive gels, pastes, slurries, cell attachment scaffolds for implantable medical devices, and casting or binding materials suitable for the construction of medical devices. The intrinsic bioactivity of the hydrogel matrix makes it useful as a gel or paste in multiple applications, including as a cell attachment scaffold that promotes wound healing around an implanted device, as gels and pastes for induction of localized vasculogenesis, wound healing, tissue repair, and regeneration, as a wound adhesive, and for tissue bulking. | 05-21-2015 |
20140324104 | INTERVERTEBRAL IMPLANT DEVICES AND METHODS FOR INSERTION THEREOF - An implant device is provided that is configured for implantation at multiple locations between adjacent vertebrae. The implant device comprises an implant body, a first portion of the implant body, and a second portion of the implant body adjustably interconnected with the first portion. The implant body has a compact orientation and an extended orientation to allow the implant body to be shifted from one orientation to the other orientation for being positioned in any one of areas between the spinous processes of the adjacent vertebrae, between laminar regions of the adjacent vertebrae, spanning an opening in the annulus between the adjacent vertebrae, and in the intervertebral space between the adjacent vertebrae. | 10-30-2014 |
20140277473 | SYSTEMS AND METHODS FOR INSERTING AN EXPANDABLE INTERVERTEBRAL DEVICE - An expandable interbody device for implantation within an intervertebral space is provided, together with methods and tools for use therewith. The interbody devices of the present invention include upper and lower bearing members configured to expand via an expansion mechanism configured to allow the insertion of osteoconductive materials and other structures into the interior of the interbody device before and after implantation, and before and after expansion of the interbody device. The insertion tool is configured expand the interbody device and to allow insertion of materials into the interbody device through a protected pathway. | 09-18-2014 |
20140236301 | Systems and Apparatuses for Inserting an Implant in Intervertebral Space - Systems and tools for inserting and securing an implant within the intervertebral space. An intervertebral disc implant with upper and lower bearing members with an articulation interface between the members for providing relative motion therebetween. The implant may be provided with various securing members for fixing the implant within the intervertebral space. A tool may be used to insert the implant, which includes a plurality of shiftable implant engaging members that are shiftable between non-engaging and engaging configurations to alternatively release or hold the implant. | 08-21-2014 |
20140221760 | Apparatus and Method for Enlarging an Incision - A retraction system and method are provided for retracting tissues surrounding a surgical site. In one aspect, a method including engaging slide connections between a guide dilator and a plurality of tissue engaging members and sequentially enlarging an incision using the guide dilator and the plurality of tissue engaging members. In another aspect, a method of inserting a plurality of tissue engaging members into an incision including fixing tip portions of the plurality of tissue engaging members in an insertion configuration, advancing the tip portions into an incision, and restricting movement of the tip portions away from the insertion configuration. A guide dilator system comprising an elongate body, a plurality of tissue engaging members, and slide connections between the elongate body and the tissue engaging members is also provided. | 08-07-2014 |
20140128924 | Bone Plate System - Bone plate systems are provided for surgical implants and bone repair. The bone plate is multi-tiered for receiving bone anchors screws for securing a plurality of bones or bone fragments in a desired relationship. The plate members include throughbores for receiving a pivot base therein, with head ends of the bone anchors being secured in the pivot bases. The throughbores may permit and define a translation path for the pivot base and the bone anchor secured therein relative to the plate. Pivot members extending between the pivot base and the plate member facilitate pivoting and optional translation of the pivot base relative to the plate. With the bone anchor seated within the pivot base, an apparatus for inhibiting screw back out is employed. | 05-08-2014 |
20140114360 | Minimally Invasive Surgical System - A multi-stage minimally invasive surgical procedure and associated instruments are disclosed. First, the surgical site is prepared. After preparation, the bone screws or anchors are attached to the bone. Subsequent to insertion of the screws, a rod or connecting member is positioned within the yoke portion of the bone screw. Caps are then placed in a pre-lock position within the yokes. The bone screws may be compressed together or distracted along the rod or connecting member, thereby setting the final spacing of the bones or bone segments. Finally the caps are moved to a final lock position to fix the screws to the rod or connecting member to maintain the bones in position relative to each other. | 04-24-2014 |
20140066694 | IMMOBILIZED BIOACTIVE HYDROGEL MATRICES AS SURFACE COATINGS - The present invention is directed to a stabilized bioactive hydrogel matrix coating for substrates, such as medical devices. The invention provides a coated substrate comprising a substrate having a surface, and a bioactive hydrogel matrix layer overlying the surface of the medical device, the hydrogel matrix comprising a first high molecular weight component and a second high molecular weight component, the first and second high molecular weight components each being selected from the group consisting of polyglycans and polypeptides, wherein at least one of the first and second high molecular weight components is immobilized (e.g., by covalent cross-linking) to the surface of the substrate. | 03-06-2014 |
20140056950 | TRICALCIUM PHOSPHATES, THEIR COMPOSITES, IMPLANTS INCORPORATING THEM, AND METHODS FOR THEIR PRODUCTION - Methods for the synthesis of tricalcium phosphates are presented, as well as a series of specific reaction parameters that can be adjusted to tailor, in specific ways, properties in the tricalcium phosphate precursor precipitate. Particulate tricalcium phosphate compositions having an average crystal size of about 250 nm or less are provided. Compositions of the invention can be used as prosthetic implants and coatings for prosthetic implants. | 02-27-2014 |
20130345756 | ROD COUPLING ASSEMBLY AND METHODS FOR BONE FIXATION - A coupling device for securing an elongate member to the spine is provided. The coupling device comprises a compressible inner member that secures an anchor member therein when the inner member is axially shifted within an outer member. Structures are provided to prevent disassembly of the anchor and coupling device prior to locking of the elongate member. | 12-26-2013 |
20130204372 | Systems and Methods for Inserting a Spinal Device - An insertion device is provided for inserting a spinal device such as an intervertebral implant within a spinal joint. The implant includes at least first and second members, with the first having a convex articulation surface and the second member having a concave articulation surface. The two articulation surfaces provide an articulation interface to substantially mimic natural kinetic motion of the spine. The insertion device can be attached to at least one of the first and second members. In one form, the insertion device is configured such that the first and second members are movable relative to one another while being held to allow the members to form a compact wedge configuration. The insertion device is configured to actively pivot the implant about the implant gripping end of the device and to allow manipulation and release of the implant members in any pivoted orientation from approximately 0 to 90 degrees. | 08-08-2013 |
20130190825 | Bone Anchor Assembly, Bone Plate System, And Method - In one aspect, a bone anchor assembly is provided having a bone anchor with a head, a resilient locking cap extending about a portion of the bone anchor head, and a cap drive member having a depending annular wall. The annular wall and locking cap have engagement surfaces configured to engage and expand the locking cap as the cap drive member is shifted from an unlocked to a locked position. In another form, a bone plate system is provided including a bone plate having an elongated throughbore and a resilient support member received therein. The support member has an opening sized to receive a bone anchor head and an actuator device carried thereon. The bone plate and support member have interfering portions configured to be shifted to a locked orientation to lock the support member and the bone anchor head at an axial position in the throughbore. | 07-25-2013 |
20130167334 | TENSIONING INSTRUMENT AND METHOD - In one aspect, a tensioning instrument for a securing device, such as surgical cable, is provided having a pretensioning mechanism configured to allow a predetermined preload tension to be applied to the cable and a tensioning mechanism operable to increase the tension in the cable by a predetermined amount in excess of the preload tension applied by the pretensioning mechanism. The tensioning device has a first actuator operatively coupled to the pretensioning mechanism and is configured permit a predetermined preload tension to be applied to the cable. The tensioning device also has a second actuator different than the first actuator which is operatively coupled to the tensioning mechanism. The second actuator may be moved between an open position and a locked position to cause the tensioning mechanism to increase the tension in the cable by the predetermined amount in excess of the preload tension, if any. | 07-04-2013 |
20130165933 | BONE PLATE SYSTEM AND METHOD - In one aspect, a bone plate system is provided including a bone plate and a plurality of cable connector devices configured to be inserted into throughbores formed in bone portions and through openings of the bone plate member aligned therewith. The cable connector devices each include opposite end portions with one end portion configured to abut against the bone adjacent the throughbore and the other end portion configured to be operatively fixed to the bone plate member with the cable portion extending therebetween and in the bone throughbore for securing the bone plate member to the bone portion with the cable connector devices including a cable portion thereof extending in the bone throughbore. | 06-27-2013 |
20130131685 | Bone Plate Systems - Bone plate systems for surgical implants and bone repair are provided. The bone plate is multi-tiered for receiving bone anchors for securing a plurality of bones or bone fragments in a desired relationship. The plate members include throughbores for receiving a pivot base therein, with head ends of the bone anchors being secured within the pivot bases. The throughbores may permit and define a translation path for the pivot base and the bone anchor secured therein relative to the plate. The configuration of the pivot base and the throughbore facilitate pivoting and optional translation of the pivot base relative to the plate. With the bone anchor seated within the pivot base, an apparatus for inhibiting bone anchor back out is employed. | 05-23-2013 |
20120310287 | Artificial Disc Device - An artificial disc device for replacing a damaged nucleus is disclosed. In one form, the device may be inserted in components such that the device may be assembled within and retained by the natural annulus therein. In another form, the device may be inserted into the natural annulus in a collapsed or compressed state or arrangement and then be expanded within and retained by the annulus therein. In a further form, the device may be provided with a releasable connection so that the device may be connected in an insertion configuration and may be released in an operable configuration. Insertion tools and methods are also disclosed. | 12-06-2012 |
20120232349 | Apparatus And Method For Enlarging An Incision - A retraction system and method are provided for retracting tissues surrounding a surgical site. In one aspect, a method including engaging slide connections between a guide dilator and a plurality of tissue engaging members and sequentially enlarging an incision using the guide dilator and the plurality of tissue engaging members. In another aspect, a method of inserting a plurality of tissue engaging members into an incision including fixing tip portions of the plurality of tissue engaging members in an insertion configuration, advancing the tip portions into an incision, and restricting movement of the tip portions away from the insertion configuration. A guide dilator system comprising an elongate body, a plurality of tissue engaging members, and slide connections between the elongate body and the tissue engaging members is also provided. | 09-13-2012 |
20120209332 | Spinal Fixation System And Method - A spinal fixation system is provided that, in one form, comprises a pedicle screw assembly having a coupling device with an elongate member for guiding a fixation element, such as a spinal rod, into the coupling device and a lock device for fixing the spinal rod to the coupling device. The pedicle screw assembly may be passed through a small incision and connected to a vertebral bone. By connecting a second pedicle screw assembly to a second vertebral bone, the elongate members of the pedicle screw assemblies provide guideposts for directing the spinal rod subcutaneously between the pedicle screw assemblies and into the coupling devices thereof. | 08-16-2012 |
20100179595 | Intervertebral Implant Devices and Methods for Insertion Thereof - Implant apparatuses are provided for being inserted between adjacent vertebral bone portions and maintaining mechanical engagement with the vertebral bone portions. The implant apparatuses are generally constructed to be inserted in an insertion orientation and pivoted between the vertebral bone portions to an implanted orientation. The implant apparatuses are further secured in the implanted orientation to maintain engagement with the adjacent vertebral bone portions. | 07-15-2010 |
20100042216 | Implant for Deploying Bone Graft Material and Methods Thereof - Invertebral implants are provided for carrying bone graft material and extruding the bone graft material between the implant and the adjacent vertebral bodies. The implants include first and second implant extrusion members shiftable relative to one another between a pre-implantation configuration having an enlarged cavity for receiving bone graft material therein and an implantation configuration having a smaller cavity. As the first and second implant extrusion members shift during implantation to the implantation configuration bone graft material is extruded from the cavity and into gaps or spaces between the upper and lower vertebral engaging surfaces of the implant and the adjacent vertebral bodies. After extrusion the bone graft material is subjected to spinal loading and stress to encourage strong bone growth therethrough. | 02-18-2010 |
20090270927 | Bone Plate System - A bone plate system is provided that includes bone plates and bone anchor assemblies for being inserted into bone plate bores to secure the bone plates to one or more bones. In one aspect, the bone plate system includes a bone anchor assembly having a locking cap and a locking fastener connected to a head portion of a bone anchor. The bone anchor assembly is driven into a bone plate bore before the locking fastener is shifted to expand the locking cap and fix the bone anchor assembly within the bore. In another aspect, the bone plate system includes a bone anchor assembly having a locking cap that deflects radially inward due to contact with the bone plate at large bone anchor assembly insertion angles. In addition, a bone anchor assembly having a preassembled condition with a locking cap resisting back out of a locking fastener. | 10-29-2009 |
20090221153 | Electrical Connector for Surgical Systems - An apparatus for creating an electrical connection with a surgical tool is provided that is capable of engaging the shafts of rotatable surgical tools having varying diameters. In one aspect, the apparatus includes a body of nonconductive material connected to a pair of spaced, electrical contact members that provide two spaced points of contact with the tool shaft. In another aspect, a contact arm is provided which pivots within a slot formed within a housing to receive larger diameter tool shafts. Additionally, the contact arm closes an opening on the housing and resiliently shifts to an open position as the contact arm is brought into engagement with the tool shaft. A method of connecting a conductor assembly to a rotatable tool shaft is also provided which includes using tension in the conductor assembly to resist rotation of a gripping end of the assembly connected to a rotatable tool. | 09-03-2009 |
20090069635 | Retraction Apparatus And Method Of Use - A retraction apparatus and method are disclosed that provide optimized access to a surgical site. In one form, a retraction frame has a retraction opening with two sets of blades operating therein. The blades are used to sequentially retract the tissue from about an incision. The sequential retraction of the blades generates only narrow gaps between the blades so that tissue and blood encroachment during the surgical procedure are minimized. | 03-12-2009 |
20090062862 | Bone Plate System - Bone plate systems for surgical implants and bone repair are provided. The bone plate is multi-tiered for receiving bone anchors for securing a plurality of bones or bone fragments in a desired relationship. The plate members include throughbores for receiving a pivot base therein, with head ends of the bone anchors being secured within the pivot bases. The throughbores may permit and define a translation path for the pivot base and the bone anchor secured therein relative to the plate. The configuration of the pivot base and the throughbore facilitate pivoting and optional translation of the pivot base relative to the plate. With the bone anchor seated within the pivot base, an apparatus for inhibiting bone anchor back out is employed. | 03-05-2009 |
20090012571 | Bone Plate System - Bone plate systems are provided for surgical implants and bone repair. The bone plate is multi-tiered for receiving bone anchors screws for securing a plurality of bones or bone fragments in a desired relationship. The plate members include throughbores for receiving a pivot base therein, with head ends of the bone anchors being secured in the pivot bases. The throughbores may permit and define a translation path for the pivot base and the bone anchor secured therein relative to the plate. Pivot members extending between the pivot base and the plate member facilitate pivoting and optional translation of the pivot base relative to the plate. With the bone anchor seated within the pivot base, an apparatus for inhibiting screw back out is employed. | 01-08-2009 |
20080312654 | Method for Marking Orthopedic Implant - A novel process for marking implants and instruments is provided by masking a portion of the implant or instrument and then applying a treatment to alter the appearance of the unmasked area. The process may be used to mark surfaces not suitable for laser or chemical etching. | 12-18-2008 |