• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The flexible and cannulated cutting device (1) for drilling and / or milling a space in bone or connective tissues comprises on the one hand a cutting element (2) consisting of a rigid tube (20) secured at one of its ends to a flexible and flexible connection (21) extending through a cannulated bur (22) and at the opposite end of a drive means provided with a security connector (23) for the uncoupling said cutting device and secondly a guide member (3) for positioning and angular deformation of the cutting element (2) within the bone or connective tissues.
    公开号:FR3046724A1
    申请号:FR1650369
    申请日:2016-01-18
    公开日:2017-07-21
    发明作者:Jean Yves Leroy；Adrien Billon；Sebastien Schuller；Guy Viart；Nicolas Virgaux
    申请人:Clariance SAS；
    IPC主号:
    专利说明:

    Flexible cutting device and cannulated
    The present invention relates to a flexible and cannulated cutting device for drilling and / or milling a space in bone or connective tissues.
    It is known from the prior patent US2013 / 0261628 of January 7, 2013 a flexible drill bit comprising a proximal shaft portion for connection to a rotational drive device, a distal portion consisting of a cutting tip for pierce bone tissue and an intermediate shaft portion extending between the proximal shaft portion and the distal portion. The intermediate shaft portion has on the one hand a longitudinal flexibility sufficient to allow the drill to deform along a radius of curvature, and secondly a torsional strength sufficient to allow the drill bit to drill a hole in bone tissue.
    It is also known from the prior patent US6053922 of July 17, 1996 a flexible shaft used for drilling a bore in the bone tissue. The flexible shaft is comprised of a tubular member having an inner longitudinal bore along the entire length of said member and a suitably shaped slot which extends in a continuous spiral or in continuous segments around said tubular member. The tubular element comprises at each opposite end of the shaft on the one hand a cutting head and on the other hand means for connection to a drive device.
    Note that the drilling devices of the prior art do not allow to drill and mill the intervertebral space between two vertebrae of a spinal segment through the pedicles of the latter.
    Indeed, the drilling devices of the prior art only pierce the bone tissue in a substantially curved direction without possible control of said radius of curvature and without guarantee of the piercing point.
    The flexible and cannulated cutting device for drilling and / or milling a space in bone or connective tissues according to the present invention comprises on the one hand a cutting element consisting of a rigid tube integral with one of its ends a flexible and flexible connection extending by a cannulated bur and at the opposite end of drive means provided with a safety connector for uncoupling said cutting device and secondly a guiding element ensuring positioning and angular deformation of the cutting element within the bone or connective tissues.
    The flexible cutter and cannula according to the present invention comprises a cutting element whose flexible and flexible connection consists of a hollow fiber strand or helical son around which is disposed a protective sheath which are respectively assembled to the cannulated bur on the one hand and the rigid tube on the other.
    The flexible cutter and cannula according to the present invention comprises a hollow strand which consists of an arrangement of at least three layers of staggered fibers or helical wires delimiting an internal bore.
    The flexible cutting device and cannulated according to the present invention comprises a hollow strand of which each layer is formed of at least eighteen fibers or son regularly arranged on the circular periphery of said strand in a helical profile along the longitudinal axis of said strand.
    The flexible cutting device and cannulated according to the present invention comprises a hollow strand of which the first and the third layer are disposed along the longitudinal axis of said strand in the same first helical direction, while the second layer interposed between the first and the second third is directed in a second helical direction which intersects said first helical direction.
    The flexible cutting device and cannula according to the present invention comprises a hollow strand which is fixed at one of its ends to the vertical edge of a first cylindrical portion of a tubular spacer integral with the rigid tube while the other end is assembled on the vertical edge of a shoulder of the canulated bur.
    The flexible cutting device and cannulated according to the present invention comprises a flexible and flexible connection whose protective sheath consists of a spring with contiguous turns coming to envelop the outer face of the fibers or helical threads of the hollow strand and each end of which is respectively integral with the rigid tube and the canulated bur.
    The flexible cutting device and cannula according to the present invention comprises a flexible and flexible connection whose protective sheath is formed of a flexible polymer sheath, each end of which is fixed to the rigid tube and the canulated bur.
    The flexible cutting device and cannula according to the present invention comprises a flexible cutting element whose cannulated bur has at least three teeth evenly distributed around an internal bore and whose cutting profile respectively ensures a swallowing of material causing damage. rotational drive of said cutting device its advancement in the bone or connective tissues.
    The flexible cutting device and cannula according to the present invention comprises a flexible cutting element whose safety connector is secured to the rigid tube by means of a pin calibrated to break under a torque which is less than that of the flexible connection and flexible with said rigid tube.
    The flexible cutting device and cannula according to the present invention comprises a guide element which consists of a rod made of Nitinol having a small diameter and a curved profile end of predetermined radius ending in a tapered tip.
    The following description with reference to the accompanying drawings, given by way of non-limiting examples, will provide a better understanding of the invention, the characteristics it has and the advantages that it is likely to provide:
    Figure 1 is a sectional view illustrating a spinal segment whose bone or connective tissue is drilled and / or milled by the flexible cutting device and cannulated according to the present invention.
    Figure 2 is an exploded perspective view showing the various parts constituting the cutting element of the flexible cutting device and cannulated according to the present invention.
    Figure 3 is a perspective view showing the assembled cutting element of the flexible cutter and cannula according to the present invention.
    Figure 4 is a sectional view illustrating in detail the arrangement of the flexible connection of the cutting element of the flexible cutter and cannula according to the present invention.
    Figure 5 is a sectional view showing the attachment of the flexible connection of the cutting element at the canulated cutter of the flexible cutting device and cannulated according to the present invention.
    Figure 6 is a perspective view showing the profile of the cannulated cutter of the flexible cutter and cannula according to the present invention.
    FIG. 1 shows a spinal segment Sr of a vertebral column whose vertebrae Va, Vb and the intervertebral disk Di are pierced and / or milled by a flexible cutter and cannula 1 according to the present invention.
    Prior to the introduction of the cutting device 1, it is anchored for example in the lower vertebra Vb a right trocar Tr for guiding said cutting device 1 in the horizontal and right drilling portion of said vertebra Va.
    The cutting device 1 consists of a flexible cutting element and cannula 2 and a guiding element 3 with a curved profile ensuring the positioning and the angular deformation of the cutting element 2 inside the bone tissues and or conjunctive. The guiding element 3 of the cutting device 1 consists of a rod 3a made of Nitinol having a small diameter and a curved profile end 3b of predetermined radius ending in a tapered tip 3c. The guide element 3 is made of a hyper-elastic material providing elastic deformation of the curved profile end 3b so as to allow it to be introduced into the right trocar Tr. The flexible cutting element and cannula 2 of the cutting device 1 consists of a rigid tube 20 secured at one of its ends with a flexible and flexible connection 21 extending by a cannulated bur 22 and at the opposite end of a security connector 23 allowing connection with means training not shown.
    The flexible and flexible connection 21 consists of a hollow strand 21a with helical fibers or threads 21d around which is disposed a protective sheath 21c which are respectively assembled to the cannulated burdle 22 on the one hand and to the rigid tube 20 on the other go.
    The hollow strand 21a consists of an arrangement of at least three layers 21b of fibers or helical threads 21d arranged in a staggered manner delimiting an internal bore 21h.
    Each layer 21b is formed of at least eighteen fibers or 21d son regularly arranged on the circular periphery of the strand 21a in a helical profile along the longitudinal axis of said strand.
    The first and third layers 21b are disposed along the longitudinal axis of the strand 21a in the same first helical direction, while the second layer 21b interposed between the first and the third is directed in a second helical direction which intersects said first helical direction.
    Each fiber or son 21 d of each layer 21b of the hollow strand 21a has the same external diameter.
    The hollow strand 21a cooperates at one of its ends with the vertical edge of a first cylindrical portion 21f of a tubular spacer 21e on which are welded the free ends of the fibers or helical wires 21d of the three layers 21b arranged in staggered rows .
    The hollow strand 21a is positioned in the extension of the first cylindrical portion 21f of the spacer 21e so that the internal bores 21h and 21] are respectively coaxial. The spacer 21e has in the extension of the first cylindrical portion 21f a second cylindrical portion 21g whose outer diameter is greater than that of said first to cooperate with the internal bore of the rigid tube 20.
    The second cylindrical portion 21g of the spacer 21e is immobilized in translation and in rotation inside the rigid tube 20 by any fastening means such as for example by welding and / or by axial deformation of the outer wall of said tube.
    The other free ends of the fibers or helical wires 21d of the three layers 21b arranged in staggered rows of the hollow strand 21a opposite to those integral with the strut 21e are fixed by welding on the vertical edge of a shoulder 22a of the cannulated bur 22.
    The hollow strand 21a is positioned relative to the cannulated bur 22 so that the internal bores 21h and 22b are respectively in the extension of one another.
    The protective sheath 21c of the flexible and flexible connection 21 consists of a spring 21k with contiguous turns 21] coming to envelop the outer face of the helical fibers or threads 21d of the hollow strand 21a and each end of which is respectively secured to the rigid tube 20 and the canulated strawberry 22.
    In this embodiment, the first free end of the spring 21k is secured to the rigid tube 20 by welding the first turn 21] on the vertical edge of the free end of said tube.
    The second free end of the spring 21k is secured to the cannulated bur 22 by the welding of the last turn 21] on the outer periphery of the shoulder 22a near the securing zone of the hollow strand 21 on the same shoulder.
    In an alternative embodiment, the protective sheath 21c may consist of a flexible polymer sheath, each end of which may be attached directly or indirectly to the rigid tube 20 and the cannulated bur 22.
    The cannulated cutter 22 of the flexible cutting element 2 has at least three teeth 22c regularly distributed around the internal bore 22b and whose cutting profile respectively ensures a swallowing of material causing during the rotational drive of the device. cuts 1 its progress in bone or connective tissues.
    The cannulated cutter 22 and sweeper reduces the compressive stresses transmitted to the flexible and flexible connection 21 during drilling or milling. The cutting angles of the teeth 22c are adapted to reduce the axial compressive forces during the removal of bone or connective tissues.
    The safety connector 23 of the flexible cutting element and cannula 2 has a breaking torque which is less than that of the flexible and flexible connection 21 with the rigid tube 20 ensuring uncoupling of said cutting device 1 with the means of training when the cannulated bur 22 encounters a dense tissue causing an increase in the resistance torque.
    The security connector 23 consists of a cylindrical sleeve 23a integral at one of its ends with a flange 23b. The sleeve 23a has an internal diameter for receiving the outer one of the rigid tube 20.
    The safety connector 23 is secured to the rigid tube 20 via a pin 23c through the sleeve 23a and said tube. The pin 23c is calibrated to break under a torque which is less than that of the flexible and flexible connection 21 with the rigid tube 20.
    It will be understood that in order to prevent the flexible and flexible connection 21 from breaking in the patient's body, the rupture is limited by a maximum torque that the pin 23c can withstand, which is sized to break before said flexible and flexible connection 21. structural arrangement of the flexible cutting element and cannula 2 and the manner in which the ends of the flexible and flexible connection 21 are fixed to the rigid tube 20 and to the cannulated burdle 22 on the one hand enable the hollow strand 21a to transmit the torque even along the curved guide element 3 and on the other hand that the protective sheath 21 undergoes axial and radial forces without rupture.
    It must also be understood that the foregoing description has been given by way of example only, and that in no way limits the scope of the invention of which we would not go out by replacing the details of execution described by any other equivalent.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Flexible cutting device and cannula for drilling and / or milling a space in bone or connective tissue, characterized in that it comprises firstly a cutting element (2) consisting of a tube rigid (20) integral at one of its ends with a flexible and flexible connection (21) extended by a cannulated bur (22) and at the opposite end of drive means provided with a safety connector ( 23) for uncoupling said cutting device and secondly a guide member (3) for positioning and angular deformation of the cutting element (2) within the bone or connective tissues.
    [2" id="c-fr-0002]
    2. Flexible cutting device and cannula according to claim 1, characterized in that the flexible and flexible connection (21) of the cutting element (2) consists of a hollow strand (21a) with fibers or helical wires ( 21 d) around which is disposed a protective sheath (21c) which are respectively assembled to the cannulated bur (22) on the one hand and the rigid tube (20) on the other hand.
    [3" id="c-fr-0003]
    3. flexible cutter and cannula according to claim 2, characterized in that the hollow strand (21a) consists of an arrangement of at least three layers (21b) of fibers or helical threads (21d) arranged in staggered delimiting an internal bore (21h).
    [4" id="c-fr-0004]
    4. Flexible cutting device and cannula according to claim 3, characterized in that each layer (21b) is formed of at least eighteen fibers or son (21d) regularly arranged on the circular periphery of the strand (21a) according to a profile helically along the longitudinal axis of said strand.
    [5" id="c-fr-0005]
    5. Flexible cutting device and cannula according to claim 3, characterized in that the first and the third layer (21b) are arranged along the longitudinal axis of the strand (21a) in the same first helical direction, while the second layer (21b) interposed between the first and the third is directed in a second helical direction which intersects said first helical direction.
    [6" id="c-fr-0006]
    6. Flexible cutting device and cannula according to claim 3, characterized in that the hollow strand (21a) is fixed at one of its ends to the vertical edge of a first cylindrical portion (21 f) of a spacer tubular (21e) integral with the rigid tube (20) while the other end is assembled on the vertical edge of a shoulder (22a) of the cannulated bur (22).
    [7" id="c-fr-0007]
    7. Flexible cutting device and cannula according to claim 2, characterized in that the protective sheath (21c) of the flexible and flexible connection (21) consists of a spring (21k) with contiguous turns (21 J.) wrap the outer face of the fibers or helical threads (21d) of the hollow strand (21a) and each end of which is respectively secured to the rigid tube (20) and the cannulated bur (22).
    [8" id="c-fr-0008]
    8. Flexible cutting device and cannula according to claim 2, characterized in that the protective sheath (21c) may consist of a flexible polymer sheath, each end of which may be attached directly or indirectly to the rigid tube (20 and 20). the canulated bur (22).
    [9" id="c-fr-0009]
    9. Flexible cutting device and cannula according to claim 1, characterized in that the cannulated bur (22) of the flexible cutting element (2) has at least three teeth (22c) evenly distributed around an internal bore ( 22b) and whose cutting profile respectively ensures a swallowing of material causing during rotation training of said cutting device (1) its advancement in bone or connective tissues.
    [10" id="c-fr-0010]
    10. Flexible cutting device and cannula according to claim 1, characterized in that the safety connector (23) is secured to the rigid tube (20) via a pin (23c) calibrated to break under a torque that is less than that of the flexible and flexible connection (21) with said rigid tube (20).
    [11" id="c-fr-0011]
    11. Flexible cutting device and cannula according to claim 1, characterized in that the guide element (3) consists of a rod (3a) made of Nitinol having a small diameter and a curved profile end (3b). of predetermined radius ending in a tapered tip (3c).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3407807B1|2020-10-07|Flexible and cannulated cutting device
    EP2667796B1|2016-07-06|Drilling device for making a bone canal with a curved profile inside the body of a vertebra
    CA2362247C|2008-12-30|Distraction/contraction device for backbone osteosynthesis
    EP1073373B1|2005-03-02|Bone implant with a reversible fixing device
    EP1532930A1|2005-05-25|Suture anchor with reversible expansion
    EP2493397B1|2015-12-16|Drive shaft for a surgical reamer
    EP2327366B1|2012-03-14|Kit for piercing the cardiac septum and implanting a transseptal probe, in particular a probe for detection/stimulation of a left cavity of the heart
    FR2702362A1|1994-09-16|Fixator for osteosynthesis of the lumbosacral spine.
    FR2718946A1|1995-10-27|Lumbar-sacral osteosynthesis fixing
    EP0180532B1|1989-03-15|Coaptor for fractured femoral necks and the like
    FR2709412A1|1995-03-10|Screw for lumbosacral fixation.
    CA2930182A1|2015-06-11|Biopsy trocar
    FR2777444A1|1999-10-22|SCREWED SUTURE ANCHOR
    FR3047657A1|2017-08-18|INTERVERTEBRAL IMPLANT OF DYNAMIC STABILIZATION AND SURGICAL KIT INCORPORATING IT
    EP2996590B1|2017-03-22|Revision assembly for an item of vertebral osteosynthesis equipment
    EP2730243A1|2014-05-14|Osteosynthesis device for treating fractures of the femoral neck
    FR2930422A1|2009-10-30|Fluid e.g. water, transporting irrigation device for use in dental instrument, has boring drill with coaxial tubular protection sheath comprising canal that opens at its proximal end near proximal outlet of sheath
    CA2966590A1|2016-05-19|Secure guide device
    FR2958531A1|2011-10-14|Device for angular indexing of fixation connector of spinal osteosynthesis equipment with respect to spherical head of pedicular screw in bone body of vertebra, has blind housing to completely limit angular displacements of connector
    CA3005328A1|2017-05-26|Dual-thread bone screw
    FR2971138A1|2012-08-10|Self-compressive surgical implant bone screw for reduction of non-displaced fractures of bone segments during osteosynthesis, has fixtures succeeding one another at minimum frequency, and distal end provided with autoperforator arrangement
    EP1361827A1|2003-11-19|Fixing screw
    EP3854340A1|2021-07-28|Device to assist with the implantation of a bone screw in the osseous medium of a living being
    FR2932688A1|2009-12-25|Guidance mandrin for probe i.e. cardiac stimulation or detection probe, of cardiac stimulation implant, has wire comprising distal part of ductile material to produce permanent flexion deformation under effect of stress applied to hand
    WO2016185120A1|2016-11-24|Surgical needle-holder
    同族专利:
    公开号 | 公开日
    WO2017125667A1|2017-07-27|
    EP3407807B1|2020-10-07|
    US10383641B2|2019-08-20|
    FR3046724B1|2021-03-05|
    US20170202563A1|2017-07-20|
    EP3407807A1|2018-12-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20030220641A1|2000-03-07|2003-11-27|Thelen Sarah L.|Method and apparatus for reducing femoral fractures|
    US20070093840A1|2005-10-06|2007-04-26|Pacelli Nicolas J|Flexible shaft|
    US20100191248A1|2009-01-27|2010-07-29|Vishal Mahul Mehta|Arthroscopic tunnel guide for rotator cuff repair|
    WO2012048050A1|2010-10-06|2012-04-12|Smith & Nephew, Inc.|A system for use in tissue repair|
    US20120203231A1|2011-02-08|2012-08-09|Howmedica Osteonics Corp.|Flexible microdrilling instrumentation, kits and methods|
    US9480485B2|2006-12-15|2016-11-01|Globus Medical, Inc.|Devices and methods for vertebrostenting|
    US9192397B2|2006-12-15|2015-11-24|Gmedelaware 2 Llc|Devices and methods for fracture reduction|
    EP3120788B1|2012-06-20|2019-09-04|Stryker Corporation|System for off-axis tissue manipulation|
    EP2919689B1|2012-11-14|2018-06-13|British Columbia Cancer Agency Branch|Cannulated hammer drill attachment|
    US9642629B2|2012-11-20|2017-05-09|Specialty Surgical Instrumentation Inc.|System and method for forming a curved tunnel in bone|
    US20150141998A1|2013-11-19|2015-05-21|Symmetry Medical Manufacturing, Inc|System and method for forming a curved tunnel in bone|
    US10751193B2|2015-04-16|2020-08-25|Clariance|Device for percutaneous transpedicular fusion|
    US10653431B2|2016-06-14|2020-05-19|Medos International Sarl|Drill assemblies and methods for drilling into bone|US10028753B2|2008-09-26|2018-07-24|Relievant Medsystems, Inc.|Spine treatment kits|
    JP6195625B2|2012-11-05|2017-09-13|リリーバント メドシステムズ、インコーポレイテッド|System and method for creating a curved pathway through bone and regulating nerves within the bone|
    US9724151B2|2013-08-08|2017-08-08|Relievant Medsystems, Inc.|Modulating nerves within bone using bone fasteners|
    WO2016090018A1|2014-12-02|2016-06-09|Akp Consulting|Active compression devices, methods of assembly and methods of use|
    US11224467B2|2016-02-26|2022-01-18|Activortho, Inc.|Active compression apparatus, methods of assembly and methods of use|
    JP2019508202A|2016-02-26|2019-03-28|アクティボーソ， インコーポレイテッド|Active compression device, method of assembly, and method of use|
    WO2021050767A1|2019-09-12|2021-03-18|Relievant Medsystems, Inc.|Systems and methods for tissue modulation|
    法律状态:
    2017-01-23| PLFP| Fee payment|Year of fee payment: 2 |
    2017-07-21| PLSC| Publication of the preliminary search report|Effective date: 20170721 |
    2018-01-25| PLFP| Fee payment|Year of fee payment: 3 |
    2020-01-27| PLFP| Fee payment|Year of fee payment: 5 |
    2021-01-25| PLFP| Fee payment|Year of fee payment: 6 |
    2022-01-25| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1650369A|FR3046724B1|2016-01-18|2016-01-18|CANNULATED FLEXIBLE Burr|FR1650369A| FR3046724B1|2016-01-18|2016-01-18|CANNULATED FLEXIBLE Burr|
    PCT/FR2017/050085| WO2017125667A1|2016-01-18|2017-01-13|Flexible and cannulated cutting device|
    EP17706531.5A| EP3407807B1|2016-01-18|2017-01-13|Flexible and cannulated cutting device|
    US15/407,880| US10383641B2|2016-01-18|2017-01-17|Flexible and fluted cutting device|
    [返回顶部]