Patents Assigned to Astura Medical Inc.
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Publication number: 20230149051Abstract: A crosslink mechanism features a locking clip with interlocking teeth. When being deployed, the surgeon will compress the spring loaded clips, freeing rotation on both sides of the mechanism. Once clipped onto the sequential reducers, the surgeon releases the clips allowing the spring to lock the teeth and therefore lock rotational freedom out of the mechanism.Type: ApplicationFiled: November 17, 2022Publication date: May 18, 2023Applicant: Astura Medical Inc.Inventors: Ross Dusterhoft, Thomas Purcell
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Publication number: 20230149054Abstract: An En Bloc connector configured to couple with multiple sequential reducers or extenders, such as spinal screw reducers, to correct a rotation deformity of the spine by turning or rotating the deformed spine structure toward a normal position. In the embodiments shown, the En Bloc connector holds three sequential reducers in the retracted configuration and four sequential reducers in the extended configuration.Type: ApplicationFiled: November 17, 2022Publication date: May 18, 2023Applicant: Astura Medical Inc.Inventors: Ross Dusterhoft, Thomas Purcell
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Publication number: 20230143005Abstract: The present invention is directed to a rod reducer that is both a lateral rod reducer and an axial rod reducer that uses an entirely different mechanism never before used for lateral rod reduction. The lateral rod reducer is configured to move a spinal fixation rod that is not aligned with the pedicle screw to a position above the tulip slot or U-shaped channel. Once in position, the lateral rod reducer also provides an axial rod reducer to advance the spinal fixation rod axially into the tulip slot. Splitting the reducer body geometry to create a hinged jaw that is then driven by a linkage system is novel. The lateral rod reducer of the present invention allows for incremental lateral reduction that utilizes a threaded linkage feature for increased power/mechanical advantage when laterally reducing. This will allow for new techniques of lateral rod manipulation in deformity cases.Type: ApplicationFiled: November 4, 2022Publication date: May 11, 2023Applicant: Astura Medical Inc.Inventors: Ross Dusterhoft, Thomas Purcell
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Patent number: 11638650Abstract: A standalone anterior cervical interbody spacer (ACIF) that includes a spacer body and plate rigidly couple via flexible pins.Type: GrantFiled: September 24, 2020Date of Patent: May 2, 2023Assignee: ASTURA MEDICAL INCInventors: Anthony Valkoun, Thomas Purcell
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Patent number: 11633290Abstract: A fastener retention system for a standalone interbody spacer that includes flexible members to configure to rotate from an “unlocked to a “locked” state to cover the screw holes in the interbody space to prevent bone engagement fasteners from backing out.Type: GrantFiled: September 30, 2021Date of Patent: April 25, 2023Assignee: ASTURA MEDICAL INCInventors: Anthony Valkoun, Thomas Purcell
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Publication number: 20220395381Abstract: An expandable interbody spacer for placement between adjacent vertebrae having two or more upper and lower endplates and lateral expansion wedges configured to couple a drive means to expand both a height and a width of the expandable interbody spacer from a collapsed state to an expanded state.Type: ApplicationFiled: June 15, 2022Publication date: December 15, 2022Applicant: Astura Medical Inc.Inventors: Anthony Valkoun, Thomas Purcell
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Publication number: 20220387190Abstract: An expandable interbody spacer that is delivered in the anterior approach with adjustable height and end plate angulation (lordosis). The expandable interbody spacer is configured to have an initial collapsed state having a first height suitable for being inserted into an intervertebral space defined by a pair of adjacent vertebrae, and an expanded state having a second height that is greater than the first height. The expandable interbody spacer may be expanded from the initial collapsed state to the expanded state in-situ. The expanded state increases the distance between the adjacent vertebrae and provides support to the adjacent vertebrae while bone fusion occurs and also provides rigid support between the adjacent vertebrae that withstands compressive forces.Type: ApplicationFiled: June 3, 2022Publication date: December 8, 2022Applicant: Astura Medical Inc.Inventors: Keith Klausman, Thomas Purcell
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Publication number: 20220378488Abstract: A stylet screw driver assembly having a screw driver/ratcheting handle assembly which houses a stylet, pre-assembled to a set length based on the screw length in use, fixed in place by a spring loaded button mechanism located on the proximal end of the ratcheting handle. The spring loaded button mates with the stylet assembly, providing various stylet protrusion lengths.Type: ApplicationFiled: August 8, 2022Publication date: December 1, 2022Applicant: Astura Medical Inc.Inventors: Keith Klausman, Thomas Purcell, Anthony Valkoun
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Publication number: 20220354478Abstract: A tissue retractor having a spring loaded retractor blade that provides constant downward pressure on the spine to eliminate/reduce tissue from creeping underneath the tips of the blades during use, which decreases operation time and reduces patient risk.Type: ApplicationFiled: May 7, 2022Publication date: November 10, 2022Applicant: Astura Medical Inc.Inventors: Keith Klausman, Joel Gambrell, Thomas Purcell
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Patent number: 11458026Abstract: A derotation reducer linkage with polyaxial locking connector for use with screw reducers/extenders in spinal fusion surgery.Type: GrantFiled: May 7, 2020Date of Patent: October 4, 2022Assignee: ASTURA MEDICAL INCInventors: Thomas Purcell, Eric Quaal, Anthony Valkoun
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Patent number: 11457906Abstract: A tissue retractor having a central body, a posterior housing slidably coupled to the central body via a first two way overrunning clutch, a posterior arm slidably coupled to the posterior housing via a second two way overrunning clutch, a right arm rotatably coupled to the central body via a hinge pin and third two way overrunning clutch and a left arm rotatably coupled to the central body via a hinge pin and fourth two way overrunning clutch.Type: GrantFiled: September 25, 2020Date of Patent: October 4, 2022Assignee: ASTURA MEDICAL INCInventor: Keith Klausman
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Publication number: 20220125596Abstract: An expandable interbody spacer for placement between adjacent vertebrae having two or more upper and lower endplates having compound-angle linear rods coupled to compound-angle bores configured to couple with the compound-angle linear rods a drive means having corresponding compound-angle slots, ramps or rails configured to slidingly engage the compound-angle slots, ramps or rails of the two or more upper and lower endplates, wherein movement of the drive means in a first direction moves the two or more upper and lower endplates away from each other both vertically and horizontally to expand both a height and a width of the expandable interbody spacer from a collapsed state to an expanded state.Type: ApplicationFiled: October 28, 2021Publication date: April 28, 2022Applicant: Astura Medical Inc.Inventors: Anthony Valkoun, Thomas Purcell
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Publication number: 20220096246Abstract: A fastener retention system for a standalone interbody spacer that includes flexible members to configure to rotate from an “unlocked to a “locked” state to cover the screw holes in the interbody space to prevent bone engagement fasteners from backing out.Type: ApplicationFiled: September 30, 2021Publication date: March 31, 2022Applicant: Astura Medical Inc.Inventors: Anthony Valkoun, Thomas Purcell
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Publication number: 20210369466Abstract: Disclosed is a standalone anterior lumbar interbody spacer that includes a lumbar spacer body and lumbar plate with a unique locking system to rigidly couple the spacer body and plate via a spring loaded lock tab.Type: ApplicationFiled: September 24, 2020Publication date: December 2, 2021Applicant: Astura Medical Inc.Inventors: Anthony Valkoun, Thomas Purcell
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Publication number: 20210251770Abstract: An expandable cage for placement between adjacent vertebrae having two or more upper and lower end plates having compound-angled slots, ramps or rails, and a drive means having corresponding compound-angled slots, ramps or rails configured to slidingly engage the compound-angled slots, ramps or rails of the two or more upper and lower end plates, wherein movement of the drive means in a first direction moves the two or more upper and lower end plates away from each other both vertically and horizontally to expand both a height and a width of the expandable cage from a collapsed state to an expanded state.Type: ApplicationFiled: April 20, 2021Publication date: August 19, 2021Applicant: Astura Medical Inc.Inventors: Thomas Purcell, Greg Martin
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Patent number: 10980644Abstract: An expandable cage for placement between adjacent vertebrae having two or more upper and lower end plates having compound-angled slots, ramps or rails, and a drive means having corresponding compound-angled slots, ramps or rails configured to slidingly engage the compound-angled slots, ramps or rails of the two or more upper and lower end plates, wherein movement of the drive means in a first direction moves the two or more upper and lower end plates away from each other both vertically and horizontally to expand both a height and a width of the expandable cage from a collapsed state to an expanded state.Type: GrantFiled: June 20, 2019Date of Patent: April 20, 2021Assignee: Astura Medical IncInventors: Thomas Purcell, Greg Martin
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Publication number: 20210085308Abstract: A tissue retractor having a central body, a posterior housing slidably coupled to the central body via a first two way overrunning clutch, a posterior arm slidably coupled to the posterior housing via a second two way overrunning clutch, a right arm rotatably coupled to the central body via a hinge pin and third two way overrunning clutch and a left arm rotatably coupled to the central body via a hinge pin and fourth two way overrunning clutch.Type: ApplicationFiled: September 25, 2020Publication date: March 25, 2021Applicant: Astura Medical Inc.Inventor: Keith Klausman
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Publication number: 20210085488Abstract: A fixation member inserter instrument attaches to an interbody spacer and assists in the insertion of the interbody spacer into the intravertebral spacer. The distal end of the fixation member inserter instrument includes a fixation member guide with two or more fixation members that is configured to simultaneously deliver the two or more fixation members during the fixation member impaction process. The interbody spacer is attached to the inserter instrument by a threaded rod adjacent to the main body of the fixation member inserter instrument. There is an impaction rod extending through the device which connects to the two or more fixation members in the fixation member guide. When the impaction rod is impacted on a proximal end, the distal end contacts the two or more fixation members simultaneously and forces them into the vertebral body at the same time.Type: ApplicationFiled: September 25, 2020Publication date: March 25, 2021Applicant: Astura Medical Inc.Inventors: Fred Murillo, Thomas Purcell
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Publication number: 20210085370Abstract: A compressor/distractor instrument that provides internal set screw engagement for threaded reduction capabilities while also providing bending support of the screw extenders during compression or distractor manipulation. Threaded reduction is performed by engaging compressor/distractor support tubes at the proximal end with a compressor/distractor driver. A removable locking pull pin secures the left and right handles of the compressor/distractor driver together during use, and removal of the pin releases the compression and tension built up in the device for ease of removal.Type: ApplicationFiled: September 24, 2019Publication date: March 25, 2021Applicant: Astura Medical Inc.Inventors: Keith Klausman, Thomas Purcell, Joel Gambrell
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Publication number: 20210085476Abstract: A standalone anterior cervical interbody spacer (ACIF) that includes a spacer body and plate rigidly couple via flexible pins.Type: ApplicationFiled: September 24, 2020Publication date: March 25, 2021Applicant: Astura Medical Inc.Inventors: Anthony Valkoun, Thomas Purcell