WO2019148344A1 - Implant de bobine extensible pour chirurgie de la colonne vertébrale mini-invasive - Google Patents

Implant de bobine extensible pour chirurgie de la colonne vertébrale mini-invasive Download PDF

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Publication number
WO2019148344A1
WO2019148344A1 PCT/CN2018/074673 CN2018074673W WO2019148344A1 WO 2019148344 A1 WO2019148344 A1 WO 2019148344A1 CN 2018074673 W CN2018074673 W CN 2018074673W WO 2019148344 A1 WO2019148344 A1 WO 2019148344A1
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WO
WIPO (PCT)
Prior art keywords
coil
hollow tube
expansion
minimally invasive
ring
Prior art date
Application number
PCT/CN2018/074673
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English (en)
Chinese (zh)
Inventor
肖志娟
Original Assignee
肖志娟
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 肖志娟 filed Critical 肖志娟
Priority to PCT/CN2018/074673 priority Critical patent/WO2019148344A1/fr
Publication of WO2019148344A1 publication Critical patent/WO2019148344A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs

Definitions

  • the invention relates to the technical field of medical instruments, and in particular to an implantable extension coil of a minimally invasive spine.
  • Spinal vertebral collapse caused by osteoporosis is a common disease.
  • the conventional surgical treatment of spinal surgery is to adjust and control the intervertebral distance of the spine vertebral collapse, and to inject cement into the cavity to fix it. Forming.
  • the double-cutting operation is generally adopted, that is, two incisions are made in the posterior of the spine. First, the spine balloon is inserted from one incision, and the developable liquid is injected to expand the spinal interstitial space, and the spine spacing is basically restored.
  • the distance to the original gap is then inserted into the bone cement perfusion device from another incision, and the bone cement is injected into the fracture of the vertebral body of the spine, and the bone cement is injected while reducing the balloon until the bone cement is solidified and repaired.
  • Chinese patent CN105188614A discloses a coiled spinal implant for replacement or reconstruction of an intervertebral disc, vertebral body and spinal motion segment, the coiled spinal implant comprising a plurality of loops and a gap between the loops, Wherein the ring is formed of a hollow material and has a plurality of holes or longitudinal slits extending through the sidewall of the ring to the hollow center; the coiled implant includes one or more located within the hollow center A gap between the balloon, the coil loops, and/or the central void surrounded by the coils.
  • the present invention aims to provide an implantable extension coil of a minimally invasive spine, which can enter from a single incision in a spinal vertebral body repair and form a support structure in the minimally invasive spinal vertebral body.
  • Directional injection and wrapping of the bone cement is completed.
  • the present invention provides an implantable extension coil of a minimally invasive spine, which is spirally wound around a shaft by a length of hollow tube, including a plurality of adjacent coil loops; An inner side of the coil ring is provided with an elastic deformation slit and a dense liquid discharge hole.
  • the lower surface of the coil ring is provided with an anti-expansion boss.
  • the upper surface of the coil ring is provided with an anti-expansion groove, and the adjacent coil ring passes through The anti-expansion boss and the anti-expansion groove are vertically matched; the coil ring is provided with a hollow tube hole, and the liquid discharge hole is in communication with the hollow tube hole.
  • the hollow tube can be prevented from being formed due to the relative slip of the adjacent coil ring when it is coiled, and the implantable extension coil is collapsed after being stressed, so that the minimally invasive spine cannot be supported.
  • the invention can enter from a single incision in the spinal vertebral body repair, and form a support structure in the minimally invasive spinal vertebral body to complete the directional injection and wrapping of the bone cement, thereby reducing the risk of surgery and the burden on the patient.
  • the front end of the implantable extension coil is provided with a bevel cut.
  • the guide is easily inserted through the beveled cut.
  • an outer side of the implantable extension coil is provided with an anti-skid curve.
  • the four corners of the cross section of the hollow tube are rounded into an arc shape, and the hollow tube hole has a circular cross section.
  • the implantable extension coil of the minimally invasive spine of the invention has the advantages of simple structure and convenient use, and the linear hollow tube is convenient for storage in vitro, and is gradually implanted into the spine body to form a spiral coil after being inserted into the body;
  • the entire process of positioning, vertebral body expansion and intra-arterial infusion of bone cement, while the injected bone cement has a coil enveloping package will not leak out to oppress other tissues and peripheral nerves, reducing the risk of surgery and patient burden.
  • FIG. 1 is a schematic view showing the overall structure of an implantable extension coil of a minimally invasive spine according to an embodiment of the present invention
  • FIG. 2 is a perspective view of an implantable extension coil of a minimally invasive spine according to an embodiment of the present invention.
  • the embodiment relates to an implantable extension coil of a minimally invasive spine, which is spirally wound around a shaft by a hollow tube, and includes: a plurality of adjacent coil loops 1 and a coil loop. 1 is provided with a hollow tube hole 8; the inner side of the coil ring 1 is provided with an elastic deformation slit 6 and a dense liquid discharge hole 4, and the lower surface of the coil ring 1 is provided with an anti-expansion boss 2, on the coil ring 1 The surface is provided with an anti-expansion groove 3, and the adjacent coil ring 1 is fitted up and down by the anti-expansion boss 2 and the anti-expansion groove 3, so as to prevent the adjacent coil ring 1 from slipping when the hollow tube is coiled, and cannot be formed.
  • the implantable extension coil collapses after being forced to support the minimally invasive spine; the drain hole 4 communicates with the hollow tube hole 8 to facilitate bone cement injection and filling.
  • the front end of the implantable extension coil of the present invention is provided with a beveled slit 5 for facilitating insertion of the guide, and an anti-slip curve 7 is provided on the outer side of the implantable extension coil.
  • the four corners of the hollow tube are rounded into an arc shape to facilitate the molding of the implantable expansion coil and the wrapping of the bone cement; the hollow tube hole 8 preferably has a circular cross section.
  • the number of the coil loops 1 varies depending on the size of the spine pitch to be supported.
  • the head of the hollow tube is first inserted into the end hole of the guide, and the rotating coil adjusting handle screwes the hollow tube into the guide and leaves the tail of the hollow tube; then the memory alloy guiding tube is Insert the tail of the hollow tube, rotate the guide tube to adjust the handle to the sleeve of the guide tube into the sleeve at the front end of the guide, and place the sleeve in the special thermostat heater of the guide until the temperature of the guide tube rises to 37 ° C;
  • the front end of the guide is inserted from the surgical incision into the vertebral body of the spine to be repaired, and the rotating guide tube adjusting handle rotates the guiding tube from the side hole of the sleeve at the front end of the guide, and the memory alloy guiding tube is driven when it is unscrewed.
  • the empty tube forms a spiral implantable extension coil, and gradually expands the spine vertebral body gap until the requirement is met; finally, the rotation guide tube adjustment handle gradually withdraws the guide tube, and injects from the tail of the guide tube during the gradual withdrawal of the guide tube.
  • the bone cement and the bone cement enter the implantable expansion coil through the hollow tube hole 8 and are injected into the coil cofferdam from the liquid discharge hole 4 until the filling is completed, and the guide is taken after the bone cement is filled and solidified. Out of the body.

Abstract

L'invention concerne un implant de bobine extensible pour une chirurgie de la colonne vertébrale mini-invasive. L'implant de bobine extensible est formé par enroulement d'un tube creux autour d'un axe dans une bobine en spirale et comprend une pluralité d'anneaux de bobine adjacents (1). Une encoche de déformation élastique (6) et des orifices de sortie de liquide répartis de manière dense (4) sont disposés sur un côté interne de l'anneau de bobine (1). Une saillie anti-expansion (2) est disposée au niveau d'une surface inférieure de l'anneau de bobine (1), et un évidement anti-expansion (3) est disposé au niveau d'une surface supérieure de celle-ci. Les anneaux de bobine adjacents (1) viennent en prise l'un avec l'autre de haut en bas au moyen de la saillie anti-expansion (2) et de l'évidement anti-expansion (3). Une ouverture de tube creux (8) est disposée à l'intérieur de l'anneau de bobine (1) et en communication avec les orifices de sortie de liquide (4). L'implant de bobine extensible présente une structure simple et est facile à utiliser. La bobine adopte une forme de tube creux linéaire lorsqu'elle est à l'extérieur du corps, de façon à faciliter le stockage, et après avoir été insérée à l'intérieur du corps, forme progressivement une bobine en spirale lorsqu'elle est implantée dans un corps vertébral. Pendant la chirurgie, une seule incision est nécessaire pour achever des procédures entières, telles que le positionnement, l'expansion de corps vertébral et l'injection de ciment osseux dans la bobine, et le ciment osseux injecté est enfermé et entouré par la bobine afin d'empêcher une fuite et une compression sur d'autres tissus ou nerfs périphériques, ce qui permet d'atténuer les risques chirurgicaux et les charges sur les patients.
PCT/CN2018/074673 2018-01-31 2018-01-31 Implant de bobine extensible pour chirurgie de la colonne vertébrale mini-invasive WO2019148344A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/074673 WO2019148344A1 (fr) 2018-01-31 2018-01-31 Implant de bobine extensible pour chirurgie de la colonne vertébrale mini-invasive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/074673 WO2019148344A1 (fr) 2018-01-31 2018-01-31 Implant de bobine extensible pour chirurgie de la colonne vertébrale mini-invasive

Publications (1)

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WO2019148344A1 true WO2019148344A1 (fr) 2019-08-08

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080234827A1 (en) * 2005-08-16 2008-09-25 Laurent Schaller Devices for treating the spine
US20130131810A1 (en) * 2005-08-16 2013-05-23 Benvenue Medical, Inc. Apparatus and method for treating bone
US20140107789A1 (en) * 2005-08-16 2014-04-17 Benvenue Medical, Inc. Devices for treating the spine
US20140277481A1 (en) * 2013-03-14 2014-09-18 Benvenue Medical, Inc. Spinal fusion implants and devices and methods for deploying such implants
CN105188614A (zh) * 2013-03-14 2015-12-23 德普伊新特斯产品公司 可膨胀线圈脊椎植入物
EP2705809B1 (fr) * 2005-08-16 2016-03-23 Benvenue Medical, Inc. Dispositifs de distraction de tissu rachidien

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080234827A1 (en) * 2005-08-16 2008-09-25 Laurent Schaller Devices for treating the spine
US20130131810A1 (en) * 2005-08-16 2013-05-23 Benvenue Medical, Inc. Apparatus and method for treating bone
US20140107789A1 (en) * 2005-08-16 2014-04-17 Benvenue Medical, Inc. Devices for treating the spine
EP2705809B1 (fr) * 2005-08-16 2016-03-23 Benvenue Medical, Inc. Dispositifs de distraction de tissu rachidien
US20140277481A1 (en) * 2013-03-14 2014-09-18 Benvenue Medical, Inc. Spinal fusion implants and devices and methods for deploying such implants
CN105188614A (zh) * 2013-03-14 2015-12-23 德普伊新特斯产品公司 可膨胀线圈脊椎植入物

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