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
  • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
  • A61B17/8875—Screwdrivers, spanners or wrenches
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
  • A61B17/1613—Component parts
  • A61B17/1631—Special drive shafts, e.g. flexible shafts
• • 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
• • 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
• • 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
  • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
  • A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
• • 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
  • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
  • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
  • B25B23/0007—Connections or joints between tool parts
  • B25B23/0021—Prolongations interposed between handle and tool
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
  • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
  • B25B23/0007—Connections or joints between tool parts
  • B25B23/0028—Angular adjustment means between tool head and handle
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
  • A61B2017/00238—Type of minimally invasive operation
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B17/064—Surgical staples, i.e. penetrating the tissue
  • A61B2017/0647—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks
  • A61B2017/0648—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks threaded, e.g. tacks with a screw thread

Definitions

• Figure 3F illustrates a perspective view of an example driver head.
• Figure 4A illustrates a perspective view of an example distal portion of the fastening tool of Figure 2, with support walls and an outer housing not shown for illustration purposes.
• Figure 4B illustrates operation of an example articulating (e.g., bevel gear) arrangement of the fastening tool of Figure 4A.
• articulating e.g., bevel gear
• Figure 5F illustrates operation of the bevel gear arrangement of Figure 5A.
• Figure 6A illustrates a perspective view of the fastening tool of Figure 2, with the outer housing not shown and a collet housing shown as transparent for illustration purposes.
• Figure 6B illustrates a detailed view of the distal portion of the fastening tool of Figure 6A.
• Figure 7A illustrates a perspective view of the fastening tool of Figure 2 coupled to an articulating driver head at an acute angle with respect to a longitudinal axis of the fastening tool.
• Figure 8 illustrates operation of another example articulating arrangement.
• Figure 10B illustrates a side view of the articulating arrangement of Figure 10A with a head tilted to a first angle.
• Figure 10D illustrates a top view of another articulating arrangement.
• Figure 15 illustrates an example cam and/or pin articulating arrangement.
• Figure 16 illustrates an example swash plate or angled plate articulating arrangement.
• Figure 17 illustrates a shaft rotating mechanism configured for rotating the driver head.
• an articulating tool 1 is configured to facilitate endoscopic placement of fasteners.
• the articulating tool 1 may be used to drive screws into bone during a surgical procedure.
• the articulating tool 1 can include a handpiece 10 and a fastening tool 20.
• the handpiece 10 can be a powered device, such as having a battery and electric motor.
• the handpiece 10 can include a grip for a user to grasp and manipulate the articulating tool 1.
• the handpiece 10 can include controls (e.g., buttons) to operate the articulating tool 1, such as to direct driving action, speed, and/or direction (e.g., clockwise or counter clockwise).
• the fastening tool 20 can be coupled to the handpiece 10, such as at a proximal end of the fastening tool 20.
• the fastening tool 20 can be removably connected to the handpiece 10.
• the fastening tool 20 is coupled to the handpiece 10 with a quick-release mechanism.
• the quick-release mechanism comprises a release button or lever on the fastening tool 20 or the handpiece 10 so that actuating (e.g., depressing) the button or lever can release the attachment of the fastening tool 20 to the handpiece 10.
• the fastening tool 20 can include an articulating driver head adapter 22 at a distal end of the fastening tool 20.
• the adapter 22 can couple to a driver head 30 (e.g., a bit configured to engage with the head of a screw).
• the adapter 22 can couple to the driver head 30 releasably and/or via a quick-release mechanism, such as a detent.
• the body interface 304 can have a lumen that is continuous from the lumens of the collet housing 302 and the elongate outer housing 202 and configured to accommodate the collet shaft 308.
• a proximal end of the collet shaft 308 can terminate inside the lumen of the body interface 304, which can protect the proximal end of the collet shaft 308 from external impacts.
• the proximal end of the collet shaft 308 can be configured to couple with a handpiece drive shaft, which can be operably coupled to the motor.
• the collet shaft 308 can include a rotation-limiting shape, such as at least one flat surface. In some embodiments, such as shown in Figures 3A and 3B, the rotation limiting shape can include two opposing flat surfaces 309. When the collet shaft 308 engages the drive shaft, rotation of the drive shaft causes rotation of the collet shaft 308.
• the driver head adapter 212 can include a second opening 221 that has a greater internal dimension than the square opening 220.
• a driver head shaft 402 can be retained in the adapter 212.
• the driver head shaft 402 can be retained with a friction fit, detent mechanism, or otherwise.
• the driver head shaft 402 of the driver head 400 can include two or more opposing prongs 404 separated by a gap such that a distance between outer surfaces of the prongs 404 is greater than a width of the generally square opening 220.
• the prongs 404 can deflect slightly toward each other when inserted into the generally square opening 220.
• the second bevel gear 228, the gear support shaft 224, and the third bevel gear 229 rotate in a second direction perpendicular to the first direction (e.g., to the left).
• the rotation of the third bevel gear 229 causes the fourth bevel gear 230 and the output shaft 214 to rotate in the same direction as the first direction (e.g., counterclockwise).
• the articulating torque transmission unit 210 in Figures 4A-4B and 5A-5F can allow for improved ranges of motion, such as between the first gear 226 and the third gear 230 in the embodiment shown in Figures 4A-4B and between the first gear 226 and the fourth gear 230 in the embodiment shown in Figures 5B-5D.
• An embodiment of the articulating torque transmission unit 210 with four bevel gears, such as shown in Figures 5A- 5F, can advantageously allow the rotation of the output shaft 224 to be in the same direction as the first shaft 208. For example, input rotation in a direction from the handpiece 10 can result in output rotation in the same direction at the driver head 400.
• the opening of the stopper 238 that engages the proximal portion of the second shaft 234 can have a shape generally complementary to the rotation limitation feature 236.
• the stopper 238 can be fixedly attached to the distal end of the collet housing 302 such as the second shaft 234 is prevented substantially from rotational movements.
• the adapter 212 and/or the driver head 300 can be articulated relative to the housing 202.
• the articulation occurs as a result of movement of the second shaft 234, such due to rotation of the wheel 240 and the threaded engagement of the wheel 240 and the second shaft 234.
• proximal movement of the second shaft 234 e.g., relative to housing 202 and/or wheel 240
• the support walls 232 can include proximal and distal portions 245, 247 pivotally coupled at a second hinge 246, which is coupled to the gear support shaft 224.
• a articulation unit of an articulating fastening tool can include a chain or belt 950.
• the belt 950 can extend the point from with the motion is transferred from one set of bevel gears to the set of bevel gears.
• An input shaft 956 can act on a set of bevel gears 952, one of which can be rigidly connected to a belt pulley or chain cog 954.
• the linkage can translate rotational motion about the shaft axis to an axis generally perpendicular to the shaft axis and about which the driver head can rotate or articulate.
• rotation of the adapter adjust dial 1468 can rotate the worm gear 1466 and the driver head adapter accordingly.
• Some embodiments can have a stationary cam or pin 1570 such as shown in Figure 15, for articulating the driver head adapter and/or the driver head.
• Gear B and the cam or pin 1570 are mounted to the same shaft or axis, but are free to rotate independently of one another.
• the cam or pin 1570 is connected to the shaft, while Gear B has a bearing that allows Gear B to rotate independently of the shaft.
• the center of Gear C is fixed to the end of the cam or pin 1570.
• the cam or pin 1570 can protrude into the moveable output bevel gear (such as Gear C described above), but does not rotate with respect to the rotation of the moveable output bevel gear.
• the fastening tool can enable the input shaft to be rotated 360°.
• the 360° rotation of the input shaft is achieved by retracting the pins allowing for discrete rotation of the driver head adapter with respect to the driver unit.
• rotation of the input shaft is achieved with a friction fit between the input shaft and the body interface (e.g., the housing 202) so that the input shaft can be manually rotated to the desired orientation.
• the 360° rotation of the input shaft 1756 can be achieved by utilizing a gear type system by which an adjustment dial 1770 (e.g., in a direction perpendicular to the rotation of the input shaft 1756) can be used to rotate a gear 1772.
• the gear 1772 can control the orientation of the shaft 1756 with respect to the driver unit.
• the driver head can stay fixed to the fastening tool as the gear 1772 is rotated to rotate the driver head.

Landscapes

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

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Applications Claiming Priority (6)

Related Child Applications (1)

Publications (1)

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ID=65271597

Family Applications (1)

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Cited By (3)

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Citations (9)

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• 2018
  • 2018-08-08 JP JP2020506780A patent/JP7250758B2/ja active Active
  • 2018-08-08 WO PCT/US2018/045851 patent/WO2019032729A1/en not_active Ceased
  • 2018-08-08 EP EP18844527.4A patent/EP3664726B1/en active Active
  • 2018-08-08 NZ NZ761369A patent/NZ761369A/en unknown
  • 2018-08-08 CA CA3072082A patent/CA3072082A1/en active Pending
  • 2018-08-08 AU AU2018313842A patent/AU2018313842B2/en active Active
• 2020
  • 2020-02-06 US US16/783,596 patent/US11259855B2/en active Active
• 2022
  • 2022-02-08 US US17/650,362 patent/US12201338B2/en active Active
• 2023
  • 2023-02-02 JP JP2023014617A patent/JP7466719B2/ja active Active
  • 2023-12-28 AU AU2023286020A patent/AU2023286020B2/en active Active
• 2025
  • 2025-01-17 US US19/031,181 patent/US20250160919A1/en active Pending

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