US20100145348A1 - Spinal distractor, compressor, and rod engaging system and method - Google Patents
Spinal distractor, compressor, and rod engaging system and method Download PDFInfo
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- US20100145348A1 US20100145348A1 US12/704,473 US70447310A US2010145348A1 US 20100145348 A1 US20100145348 A1 US 20100145348A1 US 70447310 A US70447310 A US 70447310A US 2010145348 A1 US2010145348 A1 US 2010145348A1
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- connecting element
- coupled
- collet
- locking pin
- compressor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
- A61B17/7077—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for moving bone anchors attached to vertebrae, thereby displacing the vertebrae
- A61B17/7079—Tools requiring anchors to be already mounted on an implanted longitudinal or transverse element, e.g. where said element guides the anchor motion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7011—Longitudinal element being non-straight, e.g. curved, angled or branched
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
- A61B17/7077—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for moving bone anchors attached to vertebrae, thereby displacing the vertebrae
- A61B17/708—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for moving bone anchors attached to vertebrae, thereby displacing the vertebrae with tubular extensions coaxially mounted on the bone anchors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7083—Tools for guidance or insertion of tethers, rod-to-anchor connectors, rod-to-rod connectors, or longitudinal elements
- A61B17/7089—Tools for guidance or insertion of tethers, rod-to-anchor connectors, rod-to-rod connectors, or longitudinal elements wherein insertion is along an arcuate path
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7091—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for applying, tightening or removing longitudinal element-to-bone anchor locking elements, e.g. caps, set screws, nuts or wedges
Definitions
- the invention relates generally to apparatus and methods for distracting or compressing the distance between a first and second boney structure.
- the present invention provides such a system and method.
- the present invention includes apparatus and methods for controllably distracting or compressing the distance between a first and second boney structure via a connecting element.
- FIG. 1A is an isometric diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments
- FIG. 1B is a side, partial sectional diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments
- FIG. 1C is a top diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments
- FIG. 1D is a side, sectional diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments
- FIG. 1E is an exploded diagram of a compressor and distracter apparatus and a connecting element according to various embodiments
- FIG. 1F is an exploded diagram of a section of a compressor and distracter apparatus according to various embodiments
- FIG. 2A is a diagram of a compressor and distracter apparatus coupled to a connecting element employed to compress or distract the disc space between two vertebra according to various embodiments;
- FIG. 2B is a diagram of a connecting element and bony structure interface system for engaging the connecting element to a bony structure according to various embodiments;
- FIG. 2C is a diagram of a compressor and distracter apparatus coupled to a connecting element and a bony structure interface system to distract the bony structure relative to another structure according to various embodiments;
- FIG. 2D is a diagram of a compressor and distracter apparatus coupled to a connecting element and a bony structure interface system to compress the bony structure relative to another structure according to various embodiments;
- FIG. 2E is a horizontal view of two connecting elements coupled to respective bony structure interface systems, the systems coupled to a bony structure according to various embodiments.
- FIG. 2F is a sagittal view of a connecting element coupled to a first and a second bony structure interface system, the first system coupled to a first bony structure and the second system coupled to the second bony structure according to various embodiments.
- FIG. 1A is an isometric diagram of a compressor and distracter apparatus 100 coupled to a connecting element 120 according to various embodiments.
- the apparatus 100 includes a ratchet body or base 104 , ratchet mechanism 117 , ratchet actuator handle 106 , ratchet direction selector 102 , slidable hook 105 , and hook slide recess and connecting element holder 126 .
- the hook slide 105 is coupled to the ratchet mechanism 117 where the slide 105 moves relative to the connecting element holder 126 .
- the slide 105 may move toward or away from the connecting element 126 as a function of the ratchet direction selection 102 .
- the connecting element 120 distal end 123 may be fixably coupled to a first bony structure ( 12 in FIG. 2A ).
- the hook slide catch 125 may be physically coupled to a second bony structure ( 14 in FIG. 2A ).
- the ratchet mechanism 117 As the ratchet mechanism 117 is operated by handle 106 the second bony structure 14 may be compressed toward or distracted away the first bony structure 12 . Due the ratchet mechanism 117 , the compression or distraction is controllably performed in discrete increments based on the direction 102 and handle actuations 106 .
- the connecting element holder 126 may have a curvature radius, R 1 .
- the connecting element 120 may a curvature radius, R 2 .
- R 1 may be similar to R 2 to enable smooth compression or distraction between two bony structures 12 , 14 .
- movement between the bony structures 12 , 14 may follow a curvature radius, R 3 where R 1 and R 2 are similar to R 3 .
- R 3 may be approximately equal to the lordosis between a first vertebra 12 and a second vertebra 14 .
- FIG. 1B is a side, partial sectional diagram of the compressor and distracter apparatus 100 coupled to a connecting element 120 according to various embodiments.
- the apparatus 100 includes a master pin 109 and main ratchet gear 101 .
- the master pin 109 is couples the direction selector 102 to the ratchet mechanism 117 .
- the main ratchet gear 101 have a fixed number of gears having a fixed tooth shape and size.
- the gear 101 is coupled to reciprocal teeth in the hook slide ( 124 in FIGS. 1D and 1E ). Accordingly, when the ratchet mechanism 117 is actuated (via handle 106 ), the hook slide 105 is moved a fixed, predetermined distance, permitting an apparatus 100 user to controllably distract or compress the space or distance between two bony structures 12 , 14 .
- FIG. 1C is a top diagram of a compressor and distracter apparatus 100 coupled to a connecting element 120 according to various embodiments.
- the apparatus 100 may include a connecting element connector 121 .
- the connecting element connector 121 may include a compressible collet that may be inserted into a connecting element 120 recess ( 122 in FIG. 1E ).
- a locking pin ( 109 in FIG. 1E ) may be inserted into the collet 121 via the locking pin 109 actuator 128 ( FIG. 1C ).
- the locking pin 109 insertion may fixably expand the collet 121 within the connecting element 120 recess 122 and prevent separation of the connecting element 120 from the holder 126 .
- the connecting element 120 is a cylindrical rod that is substantially incompressible along its longitudinal axis.
- the connecting element 120 may be any element 120 may span between two bony structures and a substantially incompressible longitudinal axis.
- the connecting element 120 may include a dynamic connector where the dynamic connector may be made substantially incompressible along its longitudinal axis during insertion or implantation.
- FIG. 1D is a side, sectional diagram of the compressor and distracter apparatus 100 coupled to a connecting element 120 according to various embodiments.
- the connecting element holder 126 includes a sleeve for the hook slide 105 .
- the hook slide 105 includes a plurality of teeth 124 at is proximal end.
- the teeth 124 are configured to mate with the ratchet mechanism 117 main ratchet gears 101 .
- the ratchet mechanism 117 is actuated via the handle 106 the hook slide 105 is translated with the connecting element holder 126 so the hook slide 105 catch 125 is moved relative to the fixed connecting element coupler (collet in an embodiment) 121 .
- a first bony structure is fixably coupled to connecting element 120 distal end 123 .
- a second bony structure may be fixably coupled to another apparatus that is releasably couplable to the hook slide 105 catch 125 .
- the apparatus 100 may then be actuated to translate the hook slide 105 relative the coupled connecting element 120 .
- the second bony structure 14 may be compressed toward or distracted away from the first bony structure 12 .
- the first and the second bony structure may be single anatomical bony structure that has been separated such as long bone fracture.
- FIG. 1E is an exploded diagram of the compressor and distracter apparatus 100 and a connecting element 120 according to various embodiments.
- FIG. 1F is an exploded diagram of a section of the ratchet mechanism 117 of the compressor and distracter apparatus 100 according to various embodiments.
- the apparatus 100 may include a ratchet housing/handle 104 , director selector 102 , main ratchet gear 101 , pin advancer 103 , hook slide 105 , ratchet actuator 106 , hook slide cover 107 , lee spring 108 , master pin 109 , ball spring plunger 110 , screw 111 , lee spring 112 , ratchet lock pin 113 , ratchet lock pin 114 , block pin advancer 115 , pin advancer 116 , ratchet mechanism 117 , screws 118 , connecting element locking pin 119 , connecting element coupler (collet) 121 , hook slide gear 124 , hook slide recess/connecting element holder 126 , slide path 127 , and locking pin control 128 .
- the apparatus 100 enables a user to incrementally translate the hook slide 105 relative to the hook slide recess/connecting element holder 126 .
- FIG. 2A is a diagram of a compressor and distracter apparatus 100 coupled to a connecting element 120 employed to compress or distract the disc space 13 between two vertebra 12 , 14 of a spine 10 according to various embodiments.
- the spine 10 may include a plurality of vertebra 12 , 14 covered by skin 16 .
- the connecting element 120 may be fixably coupled to the first vertebra 12 via a bone connecting element ( 30 in FIG. 2B ).
- the hook slide 105 may be coupled to the second vertebra 14 via a bone connecting element 30 and connecting cannula 22 B.
- a connecting cannula 22 A may be coupled to first vertebra 12 via the bone connecting element.
- actuation of handle 106 may distract the second vertebra 14 away from the first vertebra 12 ( FIG. 2C ) or may compress the second vertebra 14 toward the first vertebra 12 ( FIG. 2D ).
- FIG. 2B is a diagram of a connecting element 120 and bony structure coupling system 200 for engaging the connecting element to a bony structure according to various embodiments.
- the bony structure coupling system 200 may include a bone screw 30 coupled to a connecting element 120 receiver 32 via a pin 38 , a connecting element engaging saddle 34 rotatably coupled to a receiver locking element 36 , a locking element driver 40 , and a cannula couplable to the receiver 32 .
- the locking element driver 40 may be releasably coupled to the receiver locking element 36 .
- the cannula 22 may include a cannula slot 24 that the hook slide catch 125 of the hook slide 105 may releasably engage.
- FIG. 2C is a diagram of the compressor and distracter apparatus 100 coupled to a connecting element 120 and a bony structure coupling system 200 to distract a bony structure coupled to the system 200 relative to another bony structure fixably coupled to the connecting element 120 according to various embodiments.
- the system 200 is also distracted away from the connecting element 120 .
- FIG. 2D is a diagram of the compressor and distracter apparatus 100 coupled to a connecting element 120 and a bony structure coupling system 200 to compress a bony structure coupled to the system 200 toward another bony structure fixably coupled to the connecting element 120 according to various embodiments.
- the system 200 is also compressed toward the connecting element 120 .
- FIG. 2E is a horizontal view of two connecting elements coupled to respective bony structure system 200 , the systems coupled to a bony structure 14 according to various embodiments.
- a bone screw 30 in placed on a left and a right pedicle of a vertebra 14 .
- Bone dowels 42 may also be placed in a facet joints.
- FIG. 2F is a sagittal view of a connecting element 120 coupled to a first and a second bony structure coupling system 200 .
- the first system 200 may be coupled to a first bony structure 14 and the second system 200 may be coupled to the second bony structure 12 according to various embodiments.
- the compressor and distracter apparatus 100 may be used to distract or compress the disc space 13 .
Abstract
Apparatus and methods for distracting or compressing distance between a first and second honey structure and for engaging a connecting element.
Description
- This application is a continuation of co-pending U.S. patent application Ser. No. 11/604,134, entitled “Spinal Distractor, Compressor, and Rod Engaging System and Method,” filed Nov. 24, 2006, which claims the benefit of priority to U.S. Provisional Patent Application Ser. No. 60/739,268, filed Nov. 23, 2005. Priority of the aforementioned filing dates is hereby claimed and the entire disclosures of which are hereby incorporated by reference.
- The invention relates generally to apparatus and methods for distracting or compressing the distance between a first and second boney structure.
- It is desirable to enable a user to distract or compress the distance between a first and second boney structure. The present invention provides such a system and method.
- The present invention includes apparatus and methods for controllably distracting or compressing the distance between a first and second boney structure via a connecting element.
- The features, objects, and advantages of the present invention will become more apparent from the detailed description set forth below when taken in conjunction with the drawings in which like reference characters identify correspondingly throughout and wherein:
-
FIG. 1A is an isometric diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments; -
FIG. 1B is a side, partial sectional diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments; -
FIG. 1C is a top diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments; -
FIG. 1D is a side, sectional diagram of a compressor and distracter apparatus coupled to a connecting element according to various embodiments; -
FIG. 1E is an exploded diagram of a compressor and distracter apparatus and a connecting element according to various embodiments; -
FIG. 1F is an exploded diagram of a section of a compressor and distracter apparatus according to various embodiments; -
FIG. 2A is a diagram of a compressor and distracter apparatus coupled to a connecting element employed to compress or distract the disc space between two vertebra according to various embodiments; -
FIG. 2B is a diagram of a connecting element and bony structure interface system for engaging the connecting element to a bony structure according to various embodiments; -
FIG. 2C is a diagram of a compressor and distracter apparatus coupled to a connecting element and a bony structure interface system to distract the bony structure relative to another structure according to various embodiments; -
FIG. 2D is a diagram of a compressor and distracter apparatus coupled to a connecting element and a bony structure interface system to compress the bony structure relative to another structure according to various embodiments; -
FIG. 2E is a horizontal view of two connecting elements coupled to respective bony structure interface systems, the systems coupled to a bony structure according to various embodiments; and -
FIG. 2F is a sagittal view of a connecting element coupled to a first and a second bony structure interface system, the first system coupled to a first bony structure and the second system coupled to the second bony structure according to various embodiments. - Throughout this description, embodiments and variations are described for the purpose of illustrating uses and implementations of the invention. The illustrative description should be understood as presenting examples of the invention, rather than as limiting the scope of the invention.
-
FIG. 1A is an isometric diagram of a compressor anddistracter apparatus 100 coupled to a connectingelement 120 according to various embodiments. Theapparatus 100 includes a ratchet body orbase 104,ratchet mechanism 117,ratchet actuator handle 106,ratchet direction selector 102,slidable hook 105, and hook slide recess and connectingelement holder 126. Thehook slide 105 is coupled to theratchet mechanism 117 where theslide 105 moves relative to the connectingelement holder 126. Theslide 105 may move toward or away from theconnecting element 126 as a function of theratchet direction selection 102. In operation, the connectingelement 120distal end 123 may be fixably coupled to a first bony structure (12 inFIG. 2A ). Thehook slide catch 125 may be physically coupled to a second bony structure (14 inFIG. 2A ). As theratchet mechanism 117 is operated byhandle 106 thesecond bony structure 14 may be compressed toward or distracted away thefirst bony structure 12. Due theratchet mechanism 117, the compression or distraction is controllably performed in discrete increments based on thedirection 102 andhandle actuations 106. - The connecting
element holder 126 may have a curvature radius, R1. Theconnecting element 120 may a curvature radius, R2. In embodiment R1 may be similar to R2 to enable smooth compression or distraction between twobony structures bony structures first vertebra 12 and asecond vertebra 14.FIG. 1B is a side, partial sectional diagram of the compressor and distracterapparatus 100 coupled to a connectingelement 120 according to various embodiments. Theapparatus 100 includes amaster pin 109 andmain ratchet gear 101. Themaster pin 109 is couples thedirection selector 102 to theratchet mechanism 117. Themain ratchet gear 101 have a fixed number of gears having a fixed tooth shape and size. Thegear 101 is coupled to reciprocal teeth in the hook slide (124 inFIGS. 1D and 1E ). Accordingly, when theratchet mechanism 117 is actuated (via handle 106), thehook slide 105 is moved a fixed, predetermined distance, permitting anapparatus 100 user to controllably distract or compress the space or distance between twobony structures -
FIG. 1C is a top diagram of a compressor anddistracter apparatus 100 coupled to a connectingelement 120 according to various embodiments. Theapparatus 100 may include a connectingelement connector 121. The connectingelement connector 121 may include a compressible collet that may be inserted into a connectingelement 120 recess (122 inFIG. 1E ). In an embodiment after thecollet 121 is inserted into the connectingelement 120recess 122, a locking pin (109 inFIG. 1E ) may be inserted into thecollet 121 via thelocking pin 109 actuator 128 (FIG. 1C ). Thelocking pin 109 insertion may fixably expand thecollet 121 within the connectingelement 120recess 122 and prevent separation of the connectingelement 120 from theholder 126. In an embodiment the connectingelement 120 is a cylindrical rod that is substantially incompressible along its longitudinal axis. The connectingelement 120 may be anyelement 120 may span between two bony structures and a substantially incompressible longitudinal axis. The connectingelement 120 may include a dynamic connector where the dynamic connector may be made substantially incompressible along its longitudinal axis during insertion or implantation. -
FIG. 1D is a side, sectional diagram of the compressor anddistracter apparatus 100 coupled to a connectingelement 120 according to various embodiments. As shown inFIG. 1D the connectingelement holder 126 includes a sleeve for thehook slide 105. Thehook slide 105 includes a plurality ofteeth 124 at is proximal end. Theteeth 124 are configured to mate with theratchet mechanism 117 main ratchet gears 101. When theratchet mechanism 117 is actuated via thehandle 106 thehook slide 105 is translated with the connectingelement holder 126 so thehook slide 105catch 125 is moved relative to the fixed connecting element coupler (collet in an embodiment) 121. In an embodiment a first bony structure is fixably coupled to connectingelement 120distal end 123. A second bony structure may be fixably coupled to another apparatus that is releasably couplable to thehook slide 105catch 125. Theapparatus 100 may then be actuated to translate thehook slide 105 relative the coupled connectingelement 120. Accordingly the secondbony structure 14 may be compressed toward or distracted away from the firstbony structure 12. In an embodiment the first and the second bony structure may be single anatomical bony structure that has been separated such as long bone fracture. -
FIG. 1E is an exploded diagram of the compressor anddistracter apparatus 100 and a connectingelement 120 according to various embodiments.FIG. 1F is an exploded diagram of a section of theratchet mechanism 117 of the compressor anddistracter apparatus 100 according to various embodiments. Theapparatus 100 may include a ratchet housing/handle 104,director selector 102,main ratchet gear 101,pin advancer 103,hook slide 105,ratchet actuator 106,hook slide cover 107,lee spring 108,master pin 109,ball spring plunger 110,screw 111,lee spring 112, ratchetlock pin 113, ratchetlock pin 114,block pin advancer 115,pin advancer 116,ratchet mechanism 117,screws 118, connectingelement locking pin 119, connecting element coupler (collet) 121,hook slide gear 124, hook slide recess/connectingelement holder 126,slide path 127, and lockingpin control 128. As can be shown inFIGS. 1E and 1F theapparatus 100 enables a user to incrementally translate thehook slide 105 relative to the hook slide recess/connectingelement holder 126. -
FIG. 2A is a diagram of a compressor anddistracter apparatus 100 coupled to a connectingelement 120 employed to compress or distract thedisc space 13 between twovertebra spine 10 according to various embodiments. Thespine 10 may include a plurality ofvertebra skin 16. The connectingelement 120 may be fixably coupled to thefirst vertebra 12 via a bone connecting element (30 inFIG. 2B ). Thehook slide 105 may be coupled to thesecond vertebra 14 via abone connecting element 30 and connectingcannula 22B. A connectingcannula 22A may be coupled tofirst vertebra 12 via the bone connecting element. Depending on thedirection selection 102, actuation ofhandle 106 may distract thesecond vertebra 14 away from the first vertebra 12 (FIG. 2C ) or may compress thesecond vertebra 14 toward the first vertebra 12 (FIG. 2D ). -
FIG. 2B is a diagram of a connectingelement 120 and bonystructure coupling system 200 for engaging the connecting element to a bony structure according to various embodiments. The bonystructure coupling system 200 may include abone screw 30 coupled to a connectingelement 120receiver 32 via apin 38, a connectingelement engaging saddle 34 rotatably coupled to areceiver locking element 36, a lockingelement driver 40, and a cannula couplable to thereceiver 32. The lockingelement driver 40 may be releasably coupled to thereceiver locking element 36. Thecannula 22 may include acannula slot 24 that thehook slide catch 125 of thehook slide 105 may releasably engage. -
FIG. 2C is a diagram of the compressor anddistracter apparatus 100 coupled to a connectingelement 120 and a bonystructure coupling system 200 to distract a bony structure coupled to thesystem 200 relative to another bony structure fixably coupled to the connectingelement 120 according to various embodiments. As shown inFIG. 2C as the hook slide is incrementally slide away from the connecting element 120 (force vector 130), thesystem 200 is also distracted away from the connectingelement 120.FIG. 2D is a diagram of the compressor anddistracter apparatus 100 coupled to a connectingelement 120 and a bonystructure coupling system 200 to compress a bony structure coupled to thesystem 200 toward another bony structure fixably coupled to the connectingelement 120 according to various embodiments. As shown inFIG. 2D as the hook slide is incrementally slide toward the connecting element 120 (force vectors 130), thesystem 200 is also compressed toward the connectingelement 120. -
FIG. 2E is a horizontal view of two connecting elements coupled to respectivebony structure system 200, the systems coupled to abony structure 14 according to various embodiments. InFIG. 2E abone screw 30 in placed on a left and a right pedicle of avertebra 14. Bone dowels 42 may also be placed in a facet joints.FIG. 2F is a sagittal view of a connectingelement 120 coupled to a first and a second bonystructure coupling system 200. Thefirst system 200 may be coupled to a firstbony structure 14 and thesecond system 200 may be coupled to the secondbony structure 12 according to various embodiments. The compressor anddistracter apparatus 100 may be used to distract or compress thedisc space 13. - While this invention has been described in terms of a best mode for achieving the objectives of the invention, it will be appreciated by those skilled in the art that variations may be accomplished in view of these teachings without deviating from the spirit or scope of the present invention.
Claims (9)
1. A device for engaging a bony structure connecting rod having a recess positioned at a proximal end, the device comprising:
an elongated arm; and
a collet on a distal end of the elongated arm, the collet configured to be collapsed to a first outer diameter for insertion within the recess of the connecting rod and expanded to a second outer diameter within the recess of the connecting rod such that the collet is prevented from separating from the connecting rod.
2. A device of claim 1 , wherein the collet comprises a bushing and a flexible section including a plurality of flexible arms surrounding a central bore.
3. A device of claim 2 , wherein the distal end of the elongated arm is coupled to the bushing of the collet.
4. The device of claim 2 , further comprising a locking pin configured to extend through the central bore to expand the plurality of flexible arms away from one another and maintain the flexible section in the expanded second outer diameter.
5. The device of claim 4 , wherein the locking pin is sized to prevent the flexible section of the collet from collapsing from the second outer diameter and maintain the collet in a locked association with the connecting rod.
6. The device of claim 5 , wherein the locking pin when inserted through the central bore of the collet couples the connecting rod to the elongated arm.
7. The device of claim 6 , wherein the elongated arm is coupled to a handle at a proximal end region.
8. The device of claim 6 , further comprising a locking pin advancer having a proximal end coupled to the handle and a distal end coupled to the locking pin, wherein the locking pin advancer extends through an inner channel in the elongate arm.
9. The device of claim 8 , further comprising a locking pin actuator that slidably controls the locking pin advancer through the inner channel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/704,473 US20100145348A1 (en) | 2005-11-23 | 2010-02-11 | Spinal distractor, compressor, and rod engaging system and method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US73926805P | 2005-11-23 | 2005-11-23 | |
US11/604,134 US7951152B2 (en) | 2005-11-23 | 2006-11-24 | Spinal distractor, compressor, and rod engaging system and method |
US12/704,473 US20100145348A1 (en) | 2005-11-23 | 2010-02-11 | Spinal distractor, compressor, and rod engaging system and method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/604,134 Continuation US7951152B2 (en) | 2005-11-23 | 2006-11-24 | Spinal distractor, compressor, and rod engaging system and method |
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US20100145348A1 true US20100145348A1 (en) | 2010-06-10 |
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US11/604,134 Expired - Fee Related US7951152B2 (en) | 2005-11-23 | 2006-11-24 | Spinal distractor, compressor, and rod engaging system and method |
US12/704,473 Abandoned US20100145348A1 (en) | 2005-11-23 | 2010-02-11 | Spinal distractor, compressor, and rod engaging system and method |
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Application Number | Title | Priority Date | Filing Date |
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US11/604,134 Expired - Fee Related US7951152B2 (en) | 2005-11-23 | 2006-11-24 | Spinal distractor, compressor, and rod engaging system and method |
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US (2) | US7951152B2 (en) |
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US8142437B2 (en) | 2010-06-18 | 2012-03-27 | Spine Wave, Inc. | System for percutaneously fixing a connecting rod to a spine |
US8394108B2 (en) | 2010-06-18 | 2013-03-12 | Spine Wave, Inc. | Screw driver for a multiaxial bone screw |
US8454664B2 (en) | 2010-06-18 | 2013-06-04 | Spine Wave, Inc. | Method for fixing a connecting rod to a thoracic spine |
US8512383B2 (en) | 2010-06-18 | 2013-08-20 | Spine Wave, Inc. | Method of percutaneously fixing a connecting rod to a spine |
US8777954B2 (en) | 2010-06-18 | 2014-07-15 | Spine Wave, Inc. | Pedicle screw extension for use in percutaneous spinal fixation |
US20140257416A1 (en) * | 2013-03-06 | 2014-09-11 | Nathan Meyer | Percutaneous rod inserter |
US9295500B2 (en) | 2013-06-12 | 2016-03-29 | Spine Wave, Inc. | Screw driver with release for a multiaxial bone screw |
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US8540719B2 (en) | 2010-02-09 | 2013-09-24 | Aesculap Implant Systems, Llc | Percutaneous rod insertion system and method |
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AU2015301959B2 (en) | 2014-08-11 | 2020-06-25 | Spinal Elements, Inc. | Articulating rod inserter |
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US9295500B2 (en) | 2013-06-12 | 2016-03-29 | Spine Wave, Inc. | Screw driver with release for a multiaxial bone screw |
Also Published As
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US20090036895A1 (en) | 2009-02-05 |
US7951152B2 (en) | 2011-05-31 |
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