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WO2025076022A1 - Réducteur de tige avec verrou de sangle - Google Patents

Réducteur de tige avec verrou de sangle Download PDF

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Publication number
WO2025076022A1
WO2025076022A1 PCT/US2024/049508 US2024049508W WO2025076022A1 WO 2025076022 A1 WO2025076022 A1 WO 2025076022A1 US 2024049508 W US2024049508 W US 2024049508W WO 2025076022 A1 WO2025076022 A1 WO 2025076022A1
Authority
WO
WIPO (PCT)
Prior art keywords
base frame
rod
locking
rod reducer
locking finger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/US2024/049508
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English (en)
Inventor
David Wayne DANIELS
Chad DERF
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orthopediatrics Corp
Original Assignee
Orthopediatrics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orthopediatrics Corp filed Critical Orthopediatrics Corp
Publication of WO2025076022A1 publication Critical patent/WO2025076022A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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, e.g. 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
    • A61B17/7086—Rod reducers, i.e. devices providing a mechanical advantage to allow a user to force a rod into or onto an anchor head other than by means of a rod-to-bone anchor locking element; rod removers

Definitions

  • Spinal fixation systems may be used to surgically fix, adjust, and/or align the spinal column.
  • One type of spinal fixation system employs a spinal rod for supporting the spine and fixing, adjusting, and/or aligning all or portions of the spinal column into a desired orientation. Attachment of the spinal rod to the spinal column has been achieved using a variety of vertebral anchors. Pedicle screws have been used successfully as vertebral anchors. Pedicle screws and connectors in combination with spinal rods can align and correct deformities in the natural spinal alignment as well as repair traumatic injury. In general, a pedicle screw has a head with a receiving opening into which a spinal rod can be secured.
  • FIG. 2 depicts an exploded perspective view of a base frame and a tulip head locking assembly of the rod reducer of FIG. 1A;
  • FIG. 4A depicts partial cross-sectional view of the rod reducer of FIG. 1 A detached from, yet adjacent to the anchored pedicle screw of FIG. 1A, where the locking assembly of FIG. 2 is in an unlocked configuration;
  • FIG. 4C depicts partial cross-sectional view of the rod reducer of FIG. 1A secured to the tulip head of the anchored pedicle screw of FIG. 1A, where the locking assembly of FIG. 2 is in a locked configuration;
  • FIG. 4D depicts partial cross-sectional view of the rod reducer of FIG. 1A secured to the tulip head of the anchored pedicle screw of FIG. 1A, where the locking assembly of FIG. 2 is in the locked configuration, where the rod engagement anvil of FIG. 1A is actuated into the distal position to thereby force a recently inserted spinal fixation rod into the rod seat of the pedicel screw head;
  • FIG. 4E depicts cross-sectional view of the rod reducer of FIG. 1A secured to the tulip head of the anchored pedicle screw of FIG. 1A, where the locking assembly of FIG. 2 is in the locked configuration, where the rod engagement anvil of FIG. 1A in the distal position, where a set screw is attached to the tulip head to thereby attach the spinal fixation rod to the tulip head of the anchored pedicle screw;
  • FIG. 5 depicts a perspective view of another illustrative rod reducer
  • FIG. 6 depicts an exploded perspective view of a base frame and a tulip head locking assembly of the rod reducer of FIG. 5;
  • pedicel screw (100) may have any suitable features, as would be apparent to one skilled in the art in view of the teachings herein, configured to be driven by a driving tool (e.g., a manual screwdriver, a powered screwdriver, etc.) in order to drive/anchor shank (102) and thread (104) into the pedicel (P) of a vertebra (V).
  • a driving tool e.g., a manual screwdriver, a powered screwdriver, etc.
  • each tulip arm (106) defines internal female threading (112) configured to mesh with a set screw (122) (see FIGS. 4E-4F).
  • set screw (122) may be threadedly coupled with female threading (112) when spinal fixation rod (120) is suitably housed within the channel defined by tulip arms (108) and rod seat (110) in order to secure spinal fixation rod (120) to pedicel screw (100).
  • each tulip arm (108) defines a respective engagement pocket (114) disposed on an outer surface of tulip arm (108).
  • engagement pockets (114) are dimensioned to receive a portion of a tulip head locking assembly (230) (see FIG. 2) of rod reducer (200) to enable rod reducer (200) to selectively attach to a respective tulip head (106).
  • rod reducers (200) may be used to temporarily contain a spinal rod (120) with an anchored pedicle screw (100), and then drive the spinal rod (120) into suitable engagement with a head (106) of the anchored pedicle screw (100).
  • rod reducers (200) it may be desirable to secure rod reducer (200) the head (106) of an anchored pedicle screw (100), thereby allowing rod reducers (200) to act as a temporary extension of an anchored pedicle screw (100) and also allowing a surgeon to manipulate an anchored pedicle screw (100) by applying leverage, or other suitable forces, to rod reducer (200).
  • Threaded rod (202) includes a proximal rotary knob (206) that is located proximal to base frame (210). A portion of threaded rod (202) extends longitudinally within central opening (214) defined by frame (210). A user may rotate threaded rod (202) relative to base frame (210) via proximal rotary knob (206). Due to the threaded relationship between sleeve (224) and threaded rod (202), such rotation of threaded rod (202) relative to base frame (210) longitudinally actuates threaded rod (202) relative to base frame (210).
  • a user may rotate threaded rod (202) in a first angular direction about its long axis in order to drive threaded rod (202) distally relative to base frame (210); and also rotate threaded rod in a second, opposite, angular direction about its long axis in order to drive threaded rod (202) proximally relative to base frame (210).
  • a pair of laterally presented rod engagement anvils (204) are located at a distal end of threaded rod (202). Laterally presented rod engagement anvils (204) are slidably disposed on an outer surface of tulip arm supports (215). However, a portion of anvils (204) extend laterally inward and are configured to engage spinal fixation rod (120) in accordance with the description herein. Rod engagement anvils (204) are configured to translate with threaded rod (202) relative to base frame (210), but are rotationally constrained relative to base frame (210) about the longitudinal axis of base frame (210). As shown between FIGS.
  • a user may gradually actuate anvil (204) from the position shown in FIG. 1A to the position shown in FIG. IB with intermediate pauses therebetween.
  • Such intermediate pauses between actuating anvils (204) from the position shown FIG. 1A to the position shown in FIG. IB may allow a surgeon to make gradual adjustments to other rod reducers (200) coupled to other anchored pedicel screws (100), adjust the alignment of a spinal fixation system as a whole, or for any other suitable reasons as would be apparent to one skilled in the art in view of the teachings herein.
  • Inward facing protrusion (234) of each locking finger (232) is dimensioned to fit within a respective engagement pocket (114) of tulip head (106) when tulip arm support (215) suitably houses tulip head (106) and tulip head locking assembly (230) is in the locked configuration (see FIGS. 4C-4E).
  • Engagement between inward facing protrusions (234) and the surfaces defining engagement pocket (114) while tulip head locking assembly (230) is in the locked configuration is configured to selectively attach rod reducer (200) with head (106) of pedicle screw (100) such that rod reducer (200) may be utilized in adjust spinal fixation system in accordance with the description herein.
  • Each locking finger (232) defines a pin hole (236) dimensioned to receive camming body (238).
  • Camming body (238) is housed within pin hole (236) such that camming body (238) actuates with a respective locking finger (232) relative to base frame (210).
  • camming body (238) extends through pin hole (236) of a respective locking finger (232) and within obliquely oriented camming slots (218).
  • Engagement between camming body (238) and obliquely oriented camming slots (218) drives locking fingers (232) between the unlocked configuration (see FIGS. 4A-4B and 4F) and the locked configuration (see FIGS. 4C-4E).
  • translating member (240) is inhibited from rotating relative to base frame (210) about the long axis of base frame (210). Therefore, rotation of rotating body (250) about the long axis of base frame (210) drives translation of translating member (240) relative to base frame (210) due to the engagement between threaded top (244) and internal threading (254).
  • translating member (240) is attached to locking fingers (232) via pivot (235) such that translation of translating member (240) drives corresponding translation of locking fingers (232). Therefore, rotation of rotating body (250) about the longitudinal axis of base frame (210) drives translation of both translating member (240) and locking fingers (232) relative to base frame (210). In other words, the rotational position of rotating body (250) determines the longitudinal position of translating member (240) and locking fingers (232) relative to base frame (210).
  • threaded engagement between rotating body (250) and translating member (240) drives translation of translating member (240) in response to rotation of rotating body (250) about the long axis of base frame (210).
  • any other suitable means of driving translation of translating member (240) relative to base frame (210) may be utilized as would be apparent to one skilled in the art in view of the teachings herein.
  • rotating body (250) may come with a mechanism configured to lock the rotational position of rotating body (250) relative to proximal sleeve (224) to thereby keep locking fingers (232) in the desired locked configuration (e.g., the desired pivotal position relative to legs (242) about pivot (235)).
  • rotating body (250) controls whether tulip head locking assembly (230) is in the unlocked configuration or the locked configuration
  • a user may easily maintain tulip head locking assembly (230) in the unlocked position while advancing rod reducer (200) toward tulip head assembly (106) by simply refraining from pivoting rotating body (250) about the long axis of rod reducer (200) relative to translating body (240).
  • a user may rotate rotating body (250) in a first angular direction to thereby drive locking fingers (232) laterally inward in accordance with the description herein.
  • the user may rotate rotating body (250) until protrusions (234) are sufficiently engaged with a portion of tulip head (106) defining engagement pocket (114). While protrusions (234) are sufficiently engaged with tulip head (106), tulip head locking assembly (230) is considered in a locked configuration. It should be understood that, while in the locked configuration, the user may rotate rotating body (250) to control and alter the amount of clamping force locking fingers (232) impart on tulip head (106).
  • a user may release rod reducer (200), and rod reducer (200) may substantially maintain its position and orientation relative to pedicle screw (100).
  • rod reducer (200) may substantially maintain its position and orientation relative to pedicle screw (100).
  • a user may insert spinal fixation rod (120) into the channel defined by tulip head (106) and actuate anvils (204) to engage spinal fixation rod (120) in accordance with the description herein.
  • a user may adjust the position of pedicle screw (100) by imparting forces on rod reducer (200).
  • tulip head locking assembly (230) suitably maintains its locked configuration while such adjustments are made.
  • spinal fixation rod (120) is attached to the anchored pedicle screw (100)
  • a user may rotate rotating body (250) in the second, opposite, angular direction such that locking fingers (232) are pivoted laterally outward into the unlocked configuration.
  • rod reducer (200) may be removed.
  • suitable means other than threaded engagement between rotating body (250) and translating member (240) may be utilized to drive actuation of locking fingers (232) between the unlocked configuration see FIGS. 4A-4B), the fully locked configuration (see FIGS. 4C-4E), and any number of suitable positions between the two.
  • tulip head locking assembly (230) may include a mechanism configured to selectively secure locking fingers (232) in the desired locked configuration.
  • rod reducer (300) includes a cinch lock (370) configured to engage suitable portions of pivoting lever (350) to selectively lock the pivotal position of pivoting lever (350) relative to a base frame (310) in order to selectively affix the corresponding position of locking fingers (332) relative to base frame (310). Therefore, cinch lock (370) may be utilized to secure locking fingers (323) in the desired unlocked and/or locked configuration during illustrative use in accordance with the description herein.
  • Rod reducer (300) includes a base frame (310), a threaded rod (302) threadedly coupled to base frame (310), and a tulip head locking assembly (330) configured to selectively secure rod reducer (300) to tulip head (106) of pedicle screw (100).
  • Base frame (310) and threaded rod (302) may be substantially similar to base frame (210) and threaded rod (202) described above, with differences elaborated below.
  • Base frame (310) extends between a proximal end (320) and a distal end (322).
  • Base frame (310) includes a pair of longitudinally extending arms (312) that together define a central opening (314).
  • Longitudinally extending arms (312) are substantially similar to longitudinally extending arms (212) described above, with differences elaborated herein.
  • each longitudinally extending arm (312) also defines a respective longitudinally extending lock finger housing slot (316) and a pair of obliquely oriented camming slots (318) positioned near distal end (322).
  • lock finger housing slots (316) and obliquely oriented camming slots (318) may be substantially similar to lock finger housing slot (216) and camming slots (218) described above, with differences elaborated herein. Therefore, lock finger housing slots (316) are dimensioned to slidably house a respective locking finger (332) of tulip head locking assembly (330); while obliquely oriented cam slots (318) are configured to engage a camming body (338) to drive locking fingers (332) between the fully locked configuration (see FIG. 8A), the unlocked configuration (see FIG. 8B), and any suitable number of positions between the two.
  • rod reducer (300) When rod reducer (300) is suitably coupled to tulip head (106) and spinal fixation rod (120) is located within the confines of tulip arms (108) and tulip arm supports (315) in accordance with the description herein, a user may rotate threaded rod (302) via knob (306) in order to drive translation of anvils (304) distally. The user may rotate threaded rod (302) such that anvils (304) suitably engage and drive spinal fixation rod (120) into suitable alignment with rod seat (110) of tulip head (106).
  • Locking fingers (332) may be substantially similar to locking fingers (232) described above, with differences elaborated herein. Therefore, locking fingers (332) are slidably and pivotally disposed within a respective lock finger housing slot (316) of a corresponding longitudinally extending arm (313) of base frame (310). Movement of locking fingers (332) relative to a corresponding longitudinally extending arm (312) drives tulip head locking assembly (330) between an unlocked configuration (see FIG. 8B) and a locked configuration (see FIG. 8A).
  • each locking finger (332) defines a pin hole (336) dimensioned to receive camming body (338).
  • Camming body (338) is housed within pin hole (336) such that camming body (338) actuates with a respective locking finger (332) relative to base frame (310).
  • camming body (338) extends through pin hole (336) of a respective locking finger (332) and within obliquely oriented camming slots (318).
  • Engagement between camming body (338) and obliquely oriented camming slots (318) drives locking fingers (332) between the unlocked configuration (see FIG. 8B) and the locked configuration (see FIG. 8A) in response to locking fingers (332) moving along a predetermined path within a respective lock finger housing slot (316) defined by base frame (310).
  • pivoting lever (350) is configured to drive a translating body (340) via engagement between slots (355) and corresponding protrusions (345) to thereby actuate locking fingers (332) between a locked configuration (see FIG. 8A), an unlocked configuration (see FIG. 8B), and any number of suitable positions between the two.
  • Pivoting lever (350) is pivotally coupled to mounting body (380) via pin (365) and pin holes (352, 385). Pivoting lever may pivot about pin (365) relative to base (310) between a first angular position (see FIG. 8A), a second angular position (see FIG. 8B), and a plurality of angular positions therebetween.
  • pivoting lever (350) also defines a spring bias recess (360) that houses a bias spring (362).
  • Bias spring (362) is interposed between a spring housing recess (390) defined by mounting body (380) and spring bias recess (360) of lever (350).
  • Bias spring (362) is configured to impart a bias force onto lever (350) in order to urge lever (350) to pivot toward the locked configuration (see FIG. 8A).
  • a cinch lock (370) may be utilized in order to allow a user to maintain the pivotal position of lever (350) without directly engaging lever (350).
  • bias spring (362) may pivot lever (350) toward the locked configuration (see FIG. 8A). Therefore, during illustrative use, a user may easily maintain tulip head locking assembly (330) in the unlocked configuration (see FIG> 8B) (via cinch lock 370)) while initially coupling tulip arm support (315) with tulip head (106) of pedicle screw (100) (in substantially similar manner to that shown in FIGS.
  • bridge (358) of lever (350) includes a plurality of locking teeth (354).
  • the plurality of locking teeth (354) and other portions of lever (350) define a mating slot (356) dimensioned to receive a plurality of locking teeth (374) of cinch lock (370).
  • cinch lock (370) also defines a mating slot (376) that is dimensioned to house the plurality of locking teeth (354) of lever (350). Therefore, lever (350) and cinch lock (370) include complementary locking teeth (354, 374) and mating slots (356, 376).
  • locking teeth (354, 374) are configured to selectively engage each other such that cinch lock (370) may lock the pivotal position of lever (350) relative to base frame (310) in order to selective affix the corresponding position of locking finger (332) relative to base frame (310).
  • a user may disengage locking teeth (354, 374) from each other and/or forcefully overcome the engagement between locking teeth (354, 374) to thereby pivot lever (350) relative to cinch lock (370) and base frame (310) in order to move locking fingers (332) between the locked configuration (see FIG. 8A), the unlocked configuration (see FIG. 8B), and any number of suitable positions between the two configurations.
  • locking teeth (374) are configured to engage complementary locking teeth (354) of lever (350) in order to lock the pivotal position of lever (350) relative to base frame (310). Engagement between teeth (354, 374) may be sufficient to inhibit pivotal movement of lever (350) relative to base frame (310) caused by forces associated with bias spring (362) and/or suitable engagement between locking fingers (332) and the surfaces of tulip arms (108) defining engagement pockets (114) during illustrative use (e.g., when a surgeon uses rod reducer (300) to impart leverage onto pedicle screw (100)).
  • Laterally extending frame engagement surface (377) is configured to abut against corresponding engagement surfaces (384) of mounting body (380).
  • Contact between engagement surfaces (377, 384) of cinch lock (370) and mounting body (380) may bias cinch lock (370) toward a locked configuration such that locking teeth (354, 374) of lever (350) and cinch lock (370) are suitably engaged with each other to inhibit pivotal movement of lever (350).
  • a user may press downward on ledge (378) (see FIG. 9B) in order to pivot cinch lock (370) about pin (365) such that locking teeth (354, 374) disengage. With locking teeth (354, 374) disengaged, cinch lock (370) may no longer inhibit pivotal movement of lever (350).
  • mounting body (380) defines a cinch lock recess (382), at least one pin hole (385), a pair of laterally presented openings (386), a central through hole (388), and a spring housing recess (390).
  • Cinch lock recess (382) is dimensioned to house at least a portion of cinch lock (370) such that locking teeth (374) of cinch lock (370) may suitably interact with locking teeth (354) of pivoting lever (350).
  • Mounting body (380) also includes a pair of cinch lock engagement surfaces (384) that are configured to interact with laterally extending frame engagement surface (377) (see FIG. 6) of cinch lock (370).
  • contact between lock engagement surfaces (384) of mounting body (380) and frame engagement surfaces (377) of cinch lock (370) may bias cinch lock (370) toward a locked configuration, thereby inhibiting pivotal movement of pivoting lever (350) which in turn inhibits movement of locking fingers (332).
  • protrusions (345) of translating body (340) extend through a respective laterally presented opening (386), thereby allowing protrusions (345) to suitably engage pivoting lever (350) in accordance with the description herein.
  • Laterally presented openings (386) are dimensioned a suitable length in order to accommodate movement of protrusions (345) relative to mounting body (380) to thereby allow translating body (340) to drive locking fingers (332) between the unlocked (see FIG. 8B) and locked configurations (see FIG. 8A).
  • a user may desire to selectively couple tulip head (106) of pedicle screw (100) with rod reducer (300).
  • a user may desire to acuate locking fingers (332) into the unlocked configuration (see FIG. 8B) in order to allow locking fingers (332) to suitably receive tulip head (106).
  • a user may push downward on ledge (378) of cinch lock (370) in order to disengage locking teeth (354, 374).
  • a user may then pivot lever (350) upwardly in order to transition tulip head locking assembly (330) from the locked configuration (see FIG. 8A) into the unlocked configuration (see FIG. 8B) (or any other suitable position of lever (350) as would be apparent to one skilled in the art in view of the teachings herein).
  • pivoting lever (350) reaches the desired position (e.g., a position associated with locking finger (332) being in the unlocked configuration)
  • the user may release ledge (378) such that locking teeth (374) of cinch lock (370) return into suitable engagement with locking teeth (354) of lever (350).
  • a user may not be required to pivot cinch lock (370), but may pivot lever (350) with suitable force in order to force locking teeth (354, 374) to slip relative to each other in order to pivot lever (350).
  • tulip head locking assembly (330) is in the unlocked configuration such that locking fingers (332) may be inserted over tulip head (106) in accordance with the description herein.
  • a rod reducer comprising: (a) a base frame; (b) a rod engagement anvil slidably coupled with the base frame, wherein the rod engagement anvil is configured to actuate between a proximal position and a distal position; and (c) a tulip head locking assembly, comprising: (i) at least one locking finger configured to actuate relative to the base frame between an unlocked position, an intermediate position, and a locked position, wherein the intermediate position is located between the unlocked position and the locked position, wherein the at least one locking finger is configured to selectively attach the rod reducer to a pedicle screw in the locked position, and (ii) a locking finger driver configured to move relative to the base frame in order to driver the at least one locking finger between the unlocked position, the locked position, and the intermediate position, wherein the locking finger driver comprises a cinching lock assembly configured to both: (A) control a locking force generated by the locking finger driver, and (B) inhibit movement of locking finger driver relative to base
  • the locking finger driver further comprises a rotating body configured to rotate relative to the base frame in order to drive translation of the locking finger driver along the predefined path.
  • Example 1 The rod reducer of Example 9, wherein the base frame comprises a proximal sleeve, wherein the threaded rod extends through the proximal sleeve.
  • a rod reducer comprising: (a) a base frame comprising a tulip arm support configured to operatively engage a pedicle screw; (b) a rod engagement anvil slidably coupled with the base frame, wherein the rod engagement anvil is configured to actuate between a proximal position and a distal position; and (c) a tulip head locking assembly, comprising: (i) a pair of locking fingers configured to actuate relative to the base frame between an unlocked position, a locked position, and at least one intermediate position located between the unlocked position and the locked position, wherein the pair of locking fingers is configured to selectively attach the rod reducer to a pedicle screw in the locked position, and (ii) a locking finger driver configured to move relative to the base frame in order to drive the pair of locking fingers between the unlocked position, the locked position, and the at least one intermediate position, wherein the locking finger driver comprises a cinching lock assembly configured to both: (A) control a locking force generated

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Neurology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

Un réducteur de tige comprend un cadre de base, une enclume de mise en prise de tige et un ensemble de verrouillage de tête de tulipe. L'ensemble de verrouillage de tête de tulipe comprend au moins un doigt de verrouillage et un dispositif d'entraînement de doigt de verrouillage. Le ou les doigts de verrouillage peuvent être actionnés par rapport au cadre de base entre une position déverrouillée, une position intermédiaire et une position verrouillée. Le ou les doigts de verrouillage peuvent fixer sélectivement le réducteur de tige à une vis pédiculaire. Le dispositif d'entraînement de verrouillage peut entraîner le ou les doigts de verrouillage entre la position déverrouillée, la position verrouillée et la ou les positions intermédiaires. Le dispositif d'entraînement de doigt de verrouillage comprend un ensemble verrou de serrage qui peut à la fois commander une force de verrouillage générée par le dispositif d'entraînement de doigt de verrouillage et un mouvement d'inhibition du dispositif d'entraînement de doigt de verrouillage par rapport au cadre de base tandis que le ou les dispositifs d'entraînement de doigt de verrouillage se trouvent dans la ou les positions intermédiaires.
PCT/US2024/049508 2023-10-03 2024-10-02 Réducteur de tige avec verrou de sangle Pending WO2025076022A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202363542128P 2023-10-03 2023-10-03
US63/542,128 2023-10-03

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WO2025076022A1 true WO2025076022A1 (fr) 2025-04-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130046344A1 (en) * 2008-06-11 2013-02-21 K2M, Inc. Rod reduction device
US20140052197A1 (en) * 2012-08-17 2014-02-20 Warsaw Orthopedic, Inc. Spinal implant system and method
US20150100098A1 (en) * 2013-10-07 2015-04-09 K2M, Inc. Rod reducer
US20150173809A1 (en) * 2013-12-20 2015-06-25 Globus Medical, Inc. Orthopedic Fixation Devices and Instruments for Installation Thereof
US9486256B1 (en) * 2013-03-15 2016-11-08 Nuvasive, Inc. Rod reduction assemblies and related methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130046344A1 (en) * 2008-06-11 2013-02-21 K2M, Inc. Rod reduction device
US20140052197A1 (en) * 2012-08-17 2014-02-20 Warsaw Orthopedic, Inc. Spinal implant system and method
US9486256B1 (en) * 2013-03-15 2016-11-08 Nuvasive, Inc. Rod reduction assemblies and related methods
US20150100098A1 (en) * 2013-10-07 2015-04-09 K2M, Inc. Rod reducer
US20150173809A1 (en) * 2013-12-20 2015-06-25 Globus Medical, Inc. Orthopedic Fixation Devices and Instruments for Installation Thereof

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