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US20070006692A1 - Torque limiting device - Google Patents

Torque limiting device Download PDF

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Publication number
US20070006692A1
US20070006692A1 US11/256,036 US25603605A US2007006692A1 US 20070006692 A1 US20070006692 A1 US 20070006692A1 US 25603605 A US25603605 A US 25603605A US 2007006692 A1 US2007006692 A1 US 2007006692A1
Authority
US
United States
Prior art keywords
rod
handle
plate
surgical device
rotation
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.)
Abandoned
Application number
US11/256,036
Other languages
English (en)
Inventor
Christopher Phan
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.)
Medtronic PLC
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US11/256,036 priority Critical patent/US20070006692A1/en
Assigned to KYPHON, INC. reassignment KYPHON, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PHAN, CHRISTOPHER U.
Priority to JP2008521466A priority patent/JP4979698B2/ja
Priority to CA2615131A priority patent/CA2615131C/fr
Priority to AU2006269306A priority patent/AU2006269306A1/en
Priority to AT06800022T priority patent/ATE540631T1/de
Priority to PCT/US2006/026526 priority patent/WO2007008669A2/fr
Priority to CNA2006800330378A priority patent/CN101262829A/zh
Priority to EP06800022A priority patent/EP1909673B1/fr
Priority to KR1020087003140A priority patent/KR20080040703A/ko
Publication of US20070006692A1 publication Critical patent/US20070006692A1/en
Assigned to BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT reassignment BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: KYPHON INC.
Priority to US11/731,707 priority patent/US8317791B2/en
Priority to US11/731,385 priority patent/US8021366B2/en
Priority to US11/731,364 priority patent/US8021365B2/en
Assigned to KYPHON, INC. reassignment KYPHON, INC. TERMINATION/RELEASE OF SECURITY INTEREST Assignors: BANK OF AMERICA, N.A.
Assigned to MEDTRONIC SPINE LLC reassignment MEDTRONIC SPINE LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: KYPHON INC
Assigned to KYPHON SARL reassignment KYPHON SARL ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEDTRONIC SPINE LLC
Abandoned legal-status Critical Current

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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
    • A61B17/88—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
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/031—Automatic limiting or abutting means, e.g. for safety torque limiting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/185—Drives or transmissions
    • A61C1/186—Drives or transmissions with torque adjusting or limiting means

Definitions

  • the present invention relates to mechanical devices.
  • Embodiments of the present invention include torque limiting devices, tools comprising torque limiting devices, methods for using torque limiting devices and medical kits comprising torque limiting devices.
  • Tools such as medical tools, may undergo relatively high torque forces. If the torque force is greater than the tool can withstand, the tool may break or fracture. Tool breakage can lead to serious injuries. For example, if a medical tool breaks while still inserted in a patient, the patient may suffer serious injuries. Therefore, it is desirable to design tools such that injury inducing breakage is minimized or eliminated.
  • a groove can be cut such that a predetermined torque causes the tool to break at the groove as the predetermined torque is less than the torque that would cause other portions of the tool to break.
  • a curette Such a design has been used with a form of medical tool referred to as a curette.
  • the present invention provides torque limiting devices, tools, including medical tools, comprising a torque limiting device, methods for using torque limiting devices and medical kits comprising torque limiting devices.
  • a torque limiting device of the present invention allows a predetermined amount of torque to be applied and then disengages after the predetermined amount of torque has been reached.
  • Torque limiting devices are also referred to in the art by other names, such as, for example, slip clutches, friction torque limiters, overload clutches, torque limiting clutches and the like.
  • a torque limiting device of the present invention comprises a plurality of substantially planar surfaces disposed in a substantially parallel relationship. At least a first and a second planar surface are resiliently biased against one another such that within a predetermined torque range, rotational movement of the first planar surface results in rotational movement of the second planar surface in the same direction through surface friction. At, or above, a predetermined torque, surface friction is overcome and the first planar surface rotates independently of the second planar surface.
  • the first planar surface and second planar surface are resiliently biased through the use of a spring.
  • the spring may comprise a metal and/or a polymer.
  • the spring may comprise a coil spring, a compression spring, an extension spring or a torsion spring.
  • the first and second planar surfaces may be disposed in the interior of a housing.
  • the first planar surface may be resiliently biased against the second planar surface through the use of a spring disposed between an interior wall surface of the housing and a side of the first planar surface opposite the side facing the second planar surface.
  • a first planar surface comprises a projection and a second planar surface adjacent to the first planar surface comprises a receptacle.
  • the projection will generally extend in a substantially perpendicular direction from the planar surface.
  • the projection engages the receptacle such that rotation of the first planar surface results in rotation of the second planar surface.
  • the projection clears the notch thus forcing the planar surfaces apart.
  • the second planar surface no longer rotates upon further rotation of the first planar surface.
  • the projection and notch may be realigned and reengaged to permit further rotation.
  • Projections may comprise a tooth or a peg and may be substantially cylindrical, rectangular, pyramidal, trapezoidal or make take other three dimensional geometrical shapes.
  • the sides of the projection may be sloped.
  • a planar surface may comprise a plurality of projections.
  • a receptacle in a planar surface adjacent to the planar surface comprising the projection may comprise a void, a hole, a notch, a track etc.
  • the receptacle is adapted to receive the projection from the adjacent planar surface.
  • Torque limiting devices of the present invention are advantageous for use in tools designed to impart a rotational force.
  • a curette is a medical tool used to scrape, score, or otherwise form a cavity or create a void within one of the body's solid organs.
  • a curette comprises a tip that scrapes the bone, or other organ.
  • the tip may be made of any suitable biocompatible material, for example, stainless steel, cobalt chromium, titanium, and alloys or mixtures thereof. Because of the relatively small size of the tip and thin material wall thickness, it is possible that the tip may break or deform when too high a torque is applied to the handle of the curette.
  • a surgical tool such as a curette, with a torque limiting device of the present invention, limits the torque applied to the tip of the tool to reduce the possibility of damaging the tool.
  • the torque limiting device of the present invention may be reengaged so that the tool may be used again immediately after disengagement.
  • a surgical tool of the present invention may comprise a rod having a first and a second end, a surgical implement attached to the first end of the rod, and a handle positioned near the second end of the rod.
  • the surgical tool may further comprise a first surface attached to the rod and a second surface attached to the handle, the first surface in frictional contact with the second surface.
  • the first and second surfaces may comprise plates, a notch and a tooth, or any other configuration that will allow disengageable torque translation.
  • first and second surfaces slip, they may be reengaged so that the surgeon may immediately continue using the tool.
  • the present invention provides a surgical tool that limits torque applied to the surgical implement without permanently deforming or damaging the tool. Therefore, if a surgeon applies too high a torque to the handle of the tool, the tool will disengage without permanently damaging the tool. In addition, the tool may be reengaged so that the surgeon may continue the surgery without delay.
  • a medical kit of the present invention comprises a surgical tool of the present invention.
  • the medical kit of the present invention may further comprise additional surgical tools.
  • a tool, and/or a surgical tool, of the present invention may be used in a manner similar to prior tools and provide the added benefit of being re-settable and thus reusable if a predetermined torque is exceeded.
  • a method of the present invention comprises applying a torque to a tool comprising a torque limiting device of the present invention wherein if a predetermined torque is exceeded by an excess torque causing the first and second planar surfaces to rotate independently from each other, the method comprises applying a rotational force to the first planar surface in a direction substantially opposite the direction of the excess torque to re-engage the first and second planar surfaces and cause a rotational force applied to the first planar surface to be transmitted to the second planar surface.
  • FIG. 1 is a perspective and partially exploded view of a surgical tool according to certain embodiments of the present invention.
  • FIG. 2 is a perspective and partially exploded view of a portion of the surgical tool of FIG. 1 .
  • FIG. 3 is a section view of a surgical tool according to certain embodiments of the present invention.
  • FIG. 4 is a perspective view of the surgical tool of FIG. 3 .
  • FIG. 5 is a perspective view of a portion the surgical tool of FIGS. 3 and 4 .
  • FIG. 6 is a perspective view of the surgical tool of FIGS. 3, 4 , and 5 .
  • FIG. 7 is a block diagram representation of a method according to certain embodiments of the present invention.
  • the present invention provides a torque limiting device which may be used with medical devices or other mechanical devices to which a torque is applied.
  • the present invention provides a torque limiting device that may be incorporated into any tool or system that experiences a torque.
  • a device according to the present invention may comprise a rod having a first end and second end. The first and second ends may include the tips of the rod as well as a region of the rod near each tip.
  • the device may further comprise a surgical implement attached to the first end of the rod and a handle positioned near the second end of the rod.
  • the device may further comprise a first surface attached to the rod and a second surface attached to the handle.
  • the two surfaces may be disposed in frictional contact with each other, for example via a tooth and notch.
  • the two surfaces may be contained within a housing, which may be attached to the handle.
  • the device may further comprise a spring disposed between the housing to force the tooth into the notch when the tooth and notch are aligned.
  • the two surfaces are able to rotate independently, but when the tooth and notch are engaged, the two surfaces rotate together.
  • the tooth and notch may be designed to disengage when a torque equal to or greater than a predetermined maximum torque is applied to the device.
  • the maximum torque is the torque that is required to cause the tooth to rise out of the notch, overcoming the static friction force between the surfaces and the spring force exerted by the spring on the tooth.
  • the two surfaces may be made of a polymer, stainless steel, aluminum, or any other material or combination of materials suitable for creating friction between the two surfaces.
  • This torque limiting device may be used, for example, on a curette.
  • a curette may comprise the elements disclosed in PCT Patent Application WO 2005/023085, which is herein incorporated by reference.
  • the disengagement of the tooth from the notch protects the curette tip, for example, from an application of torque that may be sufficient to break the tip while still inserted in the patient.
  • the device of the present invention may be engaged again to resume use. After the tooth disengages from the notch, the device may be reengaged by rotating the first surface until the tooth and notch align, at which point the spring forces the tooth into the notch. When the tooth and notch are engaged again, the use of the tool may resume.
  • the ability to reengage the device is a significant advantage over previous devices, which suffer permanent damage when an excessive torque is applied. Therefore, previous torque limiting devices are useless after one instance of excessive torque, whereas the device of the present invention may be reused after many instances of excessive torque.
  • the torque limiting device of the present invention may be used on medical tools, such as a curette, as described above.
  • the torque limiting device may also be used on other surgical tools for use in human and veterinary contexts, including tools for grasping, scraping, bending, pushing, or otherwise manipulating an organ of the body, including bone.
  • the device may also be used on other tools or machines in which a maximum torque should not be exceeded.
  • the torque limiting device of the present invention could be included in a screwdriver or wrench to prevent over-tightening of the screw or bolt.
  • the torque limiting device may also be used on machines in which certain components could break when excessive torque is applied.
  • a surgical tool 10 may comprise a rod 12 having a first end 14 and a second end 16 .
  • the first end 14 and second end 16 may each comprise the tip of the rod 12 as well as a region of the rod 12 proximate each tip.
  • a surgical implement 18 may be coupled or fixedly attached to the first end 14 of the rod 12 .
  • a handle 20 may be positioned near the second end 16 of the rod 12 , and the handle 20 may be manipulated by a user.
  • a torque limiting device 22 may be attached to the handle 20 and to the rod 12 , so that a rotation of the handle 20 causes a rotation of the rod 12 , and therefore, of the implement 18 .
  • the torque limiting device 22 may comprise a first plate 24 having a notch 26 and a second plate 28 having a tooth 30 .
  • the notch and tooth can be interchangeable, i.e. the first plate can have the tooth and the second plate can have a notch.
  • the tooth 30 and notch 26 may be substantially the same shape and size so that they may fit together.
  • the tooth 30 may be V-shaped, V-shaped with a flat bottom, U-shaped, semi-circular, or any other shape that provides a non-perpendicular angle between the tooth 30 and the surface of the second plate 28 .
  • the tooth 30 and the notch 26 may be radially aligned such that the tooth 30 fits into the notch 26 when they are rotationally aligned.
  • the first plate 24 and the second plate 28 may be disposed within a housing 32 .
  • the housing 32 may be generally in the shape of a hollow cylinder having an inner diameter equal to or larger than the diameter of the larger of the first plate 24 and the second plate 28 .
  • the housing 32 may comprise a cap 34 , and a compression spring 36 may be disposed between the cap 34 and the second plate 28 .
  • the second plate 28 may comprise a collar 38 over which the spring 36 fits so that lateral movement of the spring 36 is substantially prevented.
  • the torque limiting device 22 may further comprise at least one guide pin 40 , and the second plate 28 may comprise at least one slot 42 .
  • the at least one guide pin 40 may be integrally formed with the cap 34 or with the housing 32 , or the at least one guide pin 40 may be fixedly attached to the cap 34 or to the housing 32 .
  • the second plate 28 may be positioned in the housing 32 such that the at least one guide pin 40 fits into the at least one slot 42 .
  • the at least one slot 42 allows the second plate 28 to slide longitudinally along the at least one guide pin 40 but thereby prevents the second plate 28 from rotating with respect to the housing 32 . The second plate 28 will then rotate only when the housing 32 rotates.
  • the first plate 24 may be disposed in the housing 32 such that rotational movement of the first plate 24 with respect to the housing 32 is allowed but longitudinal movement with respect to the housing 32 is prevented. This may be accomplished by providing the housing 32 with a support 44 , such as a ledge, that contacts the bottom surface of the first plate 24 , or by other suitable means. Accordingly, the first plate 24 is permitted to rotate along the support 44 but is not permitted to move longitudinally.
  • the rod 12 may be integrally formed with the first plate 24 or may be fixedly attached to the first plate 24 , such as by welding. Therefore, a rotation of the first plate 24 is directly translated to the rod 12 , and consequently to the surgical implement 18 .
  • the housing 32 may be attached to the handle 20 . Therefore, a rotation of the handle 20 is directly translated to the housing 32 , and consequently, via the at least one guide pin 40 , to the second plate 28 .
  • the rotation of the second plate 28 is translated to the first plate 24 by the frictional interface between the tooth 30 and the notch 26 .
  • rotation of the handle 20 causes rotation of the implement 18 .
  • the friction force between the tooth 30 and notch 26 and the spring force of the compression spring 36 may be overcome, and the tooth 30 may disengage from the notch 26 , that is the tooth 30 may rise out of the notch 26 and become no longer rotationally aligned.
  • a rotation of the handle 20 does not cause a rotation of the implement 18 .
  • the tooth 30 and notch 26 may be engaged again by rotating the handle 20 until the tooth 30 and notch 26 are rotationally aligned, and at that point the compression spring 36 will push the tooth 30 into the notch 26 again.
  • the maximum torque may be determined by varying any of the following: the spring rate of the compression spring; the slope of the tooth and notch; the length and height of the notch; the radial distance of the tooth and notch from the center of the plate and pedestal, respectively; and the materials used for the plate and pedestal.
  • a surgical tool of the present invention may be designed to slip at about 10 ⁇ 1 in.-lbs. torque and to break at about 13 ⁇ 1 in.-lbs. torque.
  • the tooth and notch may be designed to slip and begin to disengage when a torque of approximately 10 in.-lb, for example, is applied to the handle 20 , and then completely disengage when 13 in.-lb. is applied to handle 20
  • a torque of 15 in.-lb. would never be transmitted to the rod 12 because the tooth 30 would disengage from the notch 26 at a torque of 13 in.-lb.
  • the mean torque required to scrape normal bone is approximately 2.0 in.-lb. Therefore, a configuration that caused disengagement to begin at 10 in.-lb and complete at 13 in.-lb. would allow a torque that is required for normal scraping to be translated to the surgical implement.
  • a surgical tool 110 may comprise a rod 112 having a first end 114 and a second end 116 .
  • the first end 114 and second end 116 may each comprise the tip of the rod 112 as well as a region of the rod 112 proximate each tip.
  • a surgical implement 118 may be coupled or fixedly attached to the first end 114 of the rod 112 .
  • a handle 120 may be positioned near the second end 116 of the rod 112 , and the handle 120 may be manipulated by a user.
  • a torque limiting device 122 may be attached to the handle 120 and to the rod 112 , so that a rotation of the handle 120 causes a rotation of the rod 112 , and therefore, of the implement 118 .
  • the torque limiting device 122 may comprise a plate 124 having a depression 126 and a ball plunger 128 having a ball 130 .
  • the ball 130 and depression 126 may be substantially the same shape and size so that they may fit together.
  • the ball 30 may be V-shaped, V-shaped with a flat bottom, U-shaped, semi-circular, or any other suitable shape.
  • the ball 130 and the depression 126 may be radially aligned such that the ball 130 fits into the depression 126 when they are rotationally aligned.
  • the ball plunger 128 may comprise other components, as is commonly known.
  • the ball plunger 128 may comprise a hollow cylinder, partially within which the ball slides longitudinally.
  • the ball plunger 128 may also comprise a shaft that limits the movement of the ball and a spring that tends to push the ball longitudinally in the cylinder.
  • the ball plunger 128 may also have other configurations that allow for longitudinal movement of the ball.
  • the plate 124 and the ball plunger 128 may be disposed within a housing 132 .
  • the housing 132 may be generally in the shape of a hollow cylinder having an inner diameter equal to or larger than the diameter of the plate 124 .
  • the housing 132 may comprise a cap 134 , and the ball plunger 128 may be mounted or attached to the cap 134 . Therefore, a rotation of the housing 132 also results in a rotation of the ball plunger 128 .
  • the plate 124 may be disposed within the housing 132 such that rotational movement of the plate 124 is allowed but longitudinal movement with respect to the housing 132 is prevented. This may be accomplished by providing the housing 132 with a support 144 , such as a ledge, that contacts the bottom surface of the plate 124 , or by other suitable means.
  • the rod 112 may be integrally formed with the plate 124 or may be fixedly attached to the plate 124 , such as by welding. Therefore, a rotation of the plate 124 is directly translated to the rod 112 , and consequently to the surgical implement 118 .
  • the housing 132 may further comprise a flange 136 attached to the cap 134 .
  • the handle 120 may be attached to the housing 132 by fitting over the flange 136 in a relatively tight tolerance. Accordingly, a rotational movement of the handle 120 would be translated through the flange 136 to the housing 132 , and therefore to the ball plunger 128 .
  • the rotation of the ball plunger 128 is translated to the plate 124 by the frictional interface between the ball 130 and the depression 126 .
  • rotation of the handle 120 causes rotation of the implement 118 .
  • the ball plunger 128 may compress and the ball 130 of the ball plunger 128 may rise out of the depression 126 to a disengaged position.
  • a rotation of the handle 120 no longer causes a rotation of the implement 118 .
  • the ball 130 and depression 126 may be engaged again by rotating the handle 120 until the ball 130 and depression 126 are rotationally aligned, and at that point the ball plunger 128 will expand so that the ball 130 again rests in the depression 126 .
  • the maximum torque may be determined by varying any of the following, as described above: the spring rate of the compression spring in the ball plunger; the shape and size of the ball and depression; the radial distance of the ball and depression from the center of the plate; and the materials used for the ball and the plate.
  • the present invention may also comprise a method for using the device as described above.
  • the method 200 may comprise the steps of: inserting 210 a surgical tool into a body of a living being, the surgical tool having a rod, a surgical implement, and a handle; positioning 220 the surgical implement, such as the curette, at the desired location within the body; and applying 230 a torque to the handle.
  • the method may further comprise reengaging 240 a first surface of the surgical tool with a second surface of the surgical tool after an excessive torque has caused them to disengage. Reengaging 240 the first surface with the second surface may comprise realigning them, for example by rotating the handle until the first and second surfaces are realigned.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Epidemiology (AREA)
  • Dentistry (AREA)
  • Surgical Instruments (AREA)
  • Transmission Devices (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Mechanical Control Devices (AREA)
US11/256,036 2005-07-11 2005-10-21 Torque limiting device Abandoned US20070006692A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US11/256,036 US20070006692A1 (en) 2005-07-11 2005-10-21 Torque limiting device
KR1020087003140A KR20080040703A (ko) 2005-07-11 2006-07-10 토크 제한 장치 및 방법
EP06800022A EP1909673B1 (fr) 2005-07-11 2006-07-10 Limiteur de couple
CA2615131A CA2615131C (fr) 2005-07-11 2006-07-10 Limiteur de couple et procedes associes
AU2006269306A AU2006269306A1 (en) 2005-07-11 2006-07-10 Torque limiting device
JP2008521466A JP4979698B2 (ja) 2005-07-11 2006-07-10 トルク制限デバイス
AT06800022T ATE540631T1 (de) 2005-07-11 2006-07-10 Drehmomentbegrenzungsvorrichtung
PCT/US2006/026526 WO2007008669A2 (fr) 2005-07-11 2006-07-10 Limiteur de couple et procedes associes
CNA2006800330378A CN101262829A (zh) 2005-07-11 2006-07-10 扭矩限制设备
US11/731,707 US8317791B2 (en) 2005-07-11 2007-03-30 Torque limiting device and methods
US11/731,364 US8021365B2 (en) 2005-07-11 2007-03-30 Surgical device having interchangeable components and methods of use
US11/731,385 US8021366B2 (en) 2005-07-11 2007-03-30 Axial load limiting system and methods

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69828805P 2005-07-11 2005-07-11
US11/256,036 US20070006692A1 (en) 2005-07-11 2005-10-21 Torque limiting device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/026526 Continuation-In-Part WO2007008669A2 (fr) 2005-07-11 2006-07-10 Limiteur de couple et procedes associes

Publications (1)

Publication Number Publication Date
US20070006692A1 true US20070006692A1 (en) 2007-01-11

Family

ID=37313798

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/256,036 Abandoned US20070006692A1 (en) 2005-07-11 2005-10-21 Torque limiting device
US11/731,707 Active 2030-04-20 US8317791B2 (en) 2005-07-11 2007-03-30 Torque limiting device and methods

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/731,707 Active 2030-04-20 US8317791B2 (en) 2005-07-11 2007-03-30 Torque limiting device and methods

Country Status (9)

Country Link
US (2) US20070006692A1 (fr)
EP (1) EP1909673B1 (fr)
JP (1) JP4979698B2 (fr)
KR (1) KR20080040703A (fr)
CN (1) CN101262829A (fr)
AT (1) ATE540631T1 (fr)
AU (1) AU2006269306A1 (fr)
CA (1) CA2615131C (fr)
WO (1) WO2007008669A2 (fr)

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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ATE540631T1 (de) 2012-01-15
EP1909673B1 (fr) 2012-01-11
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AU2006269306A1 (en) 2007-01-18
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