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David T Hawkes, David R Warnick, Michael D Ensign: Polyaxial pedicle screw assembly. AlpineSpine, Bryan G Pratt, Rader Fishman & Grauer, November 4, 2008: US07445627 (122 worldwide citation)

A fastener and a bone fixation assembly for the internal fixation of vertebral bodies such as a pedicle screw is provided which allows a detachable tulip to be provisionally locked to a pedicle screw, while separately, the rod securely locks to the tulip. According to one exemplary embodiment, the t ...


2
Hawkes David T, Ensign Michael D: Dynamic pedicle screw system. Alpinespine, PRATT Bryan G, March 20, 2008: WO/2008/034130 (71 worldwide citation)

A system (100) for stabilizing at least one spinal motion segment includes a fastener (130) including an anchoring portion (320) and a coupling portion (310), and a longitudinal support member (110, 512) coupled to the fastener (130), wherein a portion of the system (100) is formed from a super- ela ...


3
Hawkes David T, Warnick David R, Ensign Michael D, Sweeney Thomas M: Pedicle screw system configured to receive a straight or a curved rod. Alpinespine, Hawkes David T, Warnick David R, Ensign Michael D, Sweeney Thomas M, PRATT Bryan G, October 2, 2008: WO/2008/119006 (35 worldwide citation)

A fastener (180) and a bone fixation assembly for the internal fixation of vertebral bodies such as a pedicle screw (180) is provided which allows a detachable tulip (100) to be provisionally locked to a pedicle screw (180) in a first position, while securely locking the tulip assembly to the pedicl ...


4
Ensign Michael D, Hawkes David T: Press-on pedicle screw assembly. Alpinespine, PRATT Bryan G, June 12, 2008: WO/2008/070840 (10 worldwide citation)

A tulip assembly (100, 800) configured to be coupled to a screw head (110) having a first diameter (550) includes a housing (106, 806), wherein the housing (106, 806) defines an inner diameter (500, 750, 755) configured to engage the first diameter (550) of the screw head (110). The exemplary inner ...


5
Warnick David R, Ensign Michael D: Pivotable vetrebral spacer. Alpinespine, PRATT Bryan G, March 27, 2008: WO/2008/036636 (4 worldwide citation)

According to one exemplary embodiment, a pivotable interbody spacer (100) system includes an insertion instrument (200) configured to manipulate a pivotable interbody spacer (100) during surgical insertion, wherein the insertion instrument (200) includes means for coupling the interbody spacer (100) ...


6
Ensign Michael D, Hawkes David T: Low rider pedicle screw system. Alpinespine, Ensign Michael D, Hawkes David T, PRATT Bryan G, November 13, 2008: WO/2008/137933 (1 worldwide citation)

A pedicle screw and rod assembly is provided which has a low profile in the final position. The pedicle screw includes a screw (140) having a threaded portion (165) and a head portion (155). A tulip body (130) is positioned on the head portion (155) of the screw (140). A tulip saddle (120) is couple ...


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Warnick David R, Ensign Michael D: Pivotable vetrebral spacer. Alpinespine, June 3, 2009: EP2063819-A2

According to one exemplary embodiment, a pivotable interbody spacer (100) system includes an insertion instrument (200) configured to manipulate a pivotable interbody spacer (100) during surgical insertion, wherein the insertion instrument (200) includes means for coupling the interbody spacer (100) ...


9
Ensign Michael D, Hawkes David T: Low profile pedicle screw and rod assembly. Alpinespine, Ensign Michael D, February 6, 2008: EP1883359-A2

A pedicle screw (16, 42) and rod (20, 56) assembly is provided which has a low profile in the final assembled position. The pedicle screw (16, 42) includes a screw (16, 42) having a threaded portion (44) and a head portion (46). A tulip (22, 48) is positioned on the head portion (46) of the screw (1 ...


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Hawkes David T, Sweeney Thomas M, Ensign Michael D: Minimally traumatic portal. Alpinespine, Hawkes David T, Sweeney Thomas M, Ensign Michael D, PRATT Bryan G, November 27, 2008: WO/2008/144104

A less invasive access port (100) for use in minimally invasive surgery allows for manipulation of the viewing angle into the working site in a transverse plane. According to one exemplary embodiment, the less invasive access port (100) is designed to minimize the need for muscle retraction. Additio ...