WO2020118509A1 - Dispositif de fixation de verrou interne suspendu de ligaments croisés - Google Patents

Dispositif de fixation de verrou interne suspendu de ligaments croisés Download PDF

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Publication number
WO2020118509A1
WO2020118509A1 PCT/CN2018/120235 CN2018120235W WO2020118509A1 WO 2020118509 A1 WO2020118509 A1 WO 2020118509A1 CN 2018120235 W CN2018120235 W CN 2018120235W WO 2020118509 A1 WO2020118509 A1 WO 2020118509A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow tube
tube body
cruciate ligament
ligament
fixator
Prior art date
Application number
PCT/CN2018/120235
Other languages
English (en)
Chinese (zh)
Inventor
卢政昌
林松彦
Original Assignee
高雄医学大学
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 高雄医学大学 filed Critical 高雄医学大学
Priority to PCT/CN2018/120235 priority Critical patent/WO2020118509A1/fr
Publication of WO2020118509A1 publication Critical patent/WO2020118509A1/fr

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Classifications

    • 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
    • A61F2/08—Muscles; Tendons; Ligaments

Definitions

  • the present invention relates to a fixator, and in particular to a cruciate ligament suspension interlocking fixator for cruciate ligament reconstruction surgery.
  • the knee joint is the largest joint in the body, which is composed of several bones of the femur, tibia, fibula and left bone (commonly known as the knee bone), supporting the weight of the human body, the flexion and extension of the knee.
  • anterior cruciate ligament (ACL) prevents tibia advancement
  • posterior cruciate ligament (PCL) prevents tibia backwards
  • lateral collateral ligament (LCL) prevents knee varus
  • Medial collateral ligament (MCL) prevents knee valgus.
  • the anterior cruciate ligament is an important structure of the knee joint, and the common condition of the anterior cruciate ligament causing injury is a sudden external force exerted on the knee joint to produce a knee valgus, eversion, or excessive straightening distortion, which causes the knee
  • the anterior cruciate ligament in the joint ruptures, and most of them occur in sports injuries, locomotive accidents and falls.
  • a ligament implant b is combined with a metal button c, and it is inserted into a femoral tunnel dl through the lateral side of a femur d (as indicated by the arrow direction) Shown), so that the metal button c can be clamped to the outside of the femur d, the ligament implant b is located in the femoral tunnel dl and falls into a tibial tunnel el of a tibia e, and then passes through an interface nail f Penetrating the tibial tunnel el from the lateral side of the tibia e, the ligament implant b can be positioned between the femur d and the tibia e.
  • one end of the ligament implant b is inserted into the femoral tunnel dl from the inside of the femur d, the ligament implant b
  • the other end falls into the tibial tunnel el of the tibia e, and then penetrates into the femoral tunnel dl from the inside of the femur d through two interface screws f, and penetrates into the tibial tunnel el from the outside of the tibia e, so that
  • the ligament implant b may be positioned between the femur d and the tibia e.
  • this fixation method makes the contact surface of the femoral tunnel dl and the ligament implant b poorly healed, and it is easy to scratch the ligament implant b, resulting in unstable joints after reconstruction, resulting in poor surgical quality.
  • the object of the present invention is to provide a cruciate ligament suspension interlocking fixator, which can make a ligament implant stable in a femur, to avoid the ligament implant unstable Shaking.
  • the object of the present invention is to provide a cruciate ligament suspension interlocking fixator, which can make the ligament implant and the femur have a large area of comprehensive integration.
  • the object of the present invention is to provide a cruciate ligament suspension interlocking fixator, which can avoid damage to the ligament implant due to scratches.
  • the object of the present invention is to provide a cruciate ligament suspension interlocking fixator, which can improve the convenience of surgery
  • the cruciate ligament suspension interlocking fixator of the present invention includes: a hollow tube body having at least one inducing growth hole and a check structure, the at least one inducing growth hole penetrating one of the hollow tube bodies An inner wall surface and an outer wall surface, the check structure is located on the outer wall surface of the hollow tube body; and a limiting member is located in the hollow tube body, and both ends of the limiting member are connected to the inner wall surface.
  • the cruciate ligament suspension interlocking fixator of the present invention is entirely implanted in the strand tunnel, the backstop structure abuts on the inner wall of the strand tunnel, and the ligament implant can hang and abut on
  • the limiting member enables the ligament implant to be stably located in the strand tunnel, thereby ensuring that the ligament implant does not generate unstable shaking and the situation where the strand tunnel is enlarged, and has improved postoperative quality and The effect of reducing related risks.
  • the hollow tube body has a first end and a second end opposite, the first end has a diameter Shrink.
  • the diameter-reduced portion can penetrate into the strand tunnel, which has the effect of improving the convenience of surgery.
  • the limiting member has a circular arc portion, the circular arc portion facing the first end of the hollow tube body.
  • the ligament implant can hang and abut on the arc portion, which has the effect of avoiding damage to the ligament implant due to scratches.
  • an axis direction is defined between the first end and the second end, and the at least one growth-inducing hole is formed as a strip-shaped hole along the axis direction.
  • the check structure has a plurality of long inclined surfaces and a plurality of short inclined surfaces, the plurality of short inclined surfaces and the plurality of long inclined surfaces are respectively connected to form a turning portion, each turning portion abuts on the strand of the tunnel Inner wall.
  • the structure is simple and easy to manufacture, and has the effect of reducing manufacturing costs.
  • the check structure forms an oblique sawtooth shape.
  • This structure is simple and easy to manufacture, and has the effect of reducing manufacturing costs.
  • the length of the hollow tube is 25-30 mm, which has sufficient length for the ligament implant to be combined, which has the effect of improving the quality of postoperative.
  • the limiting member is integrally formed with the hollow tube body. In this way, it has the effect of improving the structural strength of the interlocking ligament of the cruciate ligament.
  • FIG. 1 is a plan view of an existing anterior cruciate ligament fixation method.
  • FIG. 2 is a plan view of another existing anterior cruciate ligament fixation method.
  • FIG. 3 is a perspective view of a preferred embodiment of the present invention.
  • FIG. 4 is a partially cutaway perspective view of a preferred embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a preferred embodiment of the present invention incorporating a ligament implant.
  • FIG. 6 is a diagram of a preferred embodiment of the invention.
  • the "joint”, “combination”, or “assembly” and other similar terms described throughout the present invention mainly include a type that can be separated without damaging the component after connection, or that the component cannot be detached after connection. Common knowledge The person who knows can choose according to the material or assembly requirements of the components to be connected.
  • FIG. 3 is a preferred embodiment of the internal ligament of the cruciate ligament suspension of the present invention, including a hollow tube body 1 and a limiting member 2, the limiting member 2 is located in Inside the hollow tube 1.
  • the hollow tube body 1 may have a first end la and a second end lb opposite, the first end la and the second end lb defined between In one axis direction P, the hollow tube body 1 may be, for example, a square tube or a column of various other shapes.
  • the shape of the hollow tube body 1 is not limited by the present invention.
  • the hollow tube body 1 1 is described as a circular tube, the length of the hollow tube body 1 is preferably 25 to 30 mm, and the invention is not limited thereto.
  • the hollow tube body 1 has at least one induced growth hole 11 that penetrates an inner wall surface 12 and an outer wall surface 13 of the hollow tube body 1.
  • the at least one induced growth hole 11 may be, for example, a square
  • the size, number, and shape of the at least one growth-inducing hole 11 are not limited by the present invention.
  • the at least one growth-inducing hole 11 is formed as a strip-shaped hole along the axis direction P.
  • the number of the at least one growth-inducing hole 11 is four.
  • the hollow tube body 1 may have a check structure 14 located on the outer wall surface 13 of the hollow tube body 1.
  • the backstop structure 14 has a plurality of long inclined surfaces 14a and a plurality of short inclined surfaces 14b.
  • the plurality of long inclined surfaces 14a are connected to the outer wall surface 13 of the hollow tube body 1 from the first end la toward the first The direction of the two ends lb extends obliquely.
  • the plurality of short inclined surfaces 14b are also connected to the outer wall surface 13 of the hollow tube 1 and extend obliquely from the first end la toward the direction of the second end lb.
  • the short inclined surface 14b and the plurality of long inclined surfaces 14a are respectively connected to form a turning portion 14c, so that the check structure 14 can be formed into an inclined saw-tooth shape.
  • the first end la of the hollow tube body 1 may have a reduced diameter portion 15.
  • the limiting member 2 is located inside the hollow tube body 1, the limiting member 2 and the hollow tube body 1 are preferably integrally formed, for example, can be made by 3D printing technology, the present invention is not Be restricted.
  • the two ends of the limiting member 2 are connected to the inner wall surface 12 of the hollow tube body 1.
  • the limiting member 2 may have an arc portion 21 that faces the hollow tube body 1. The first end la.
  • the cruciate ligament suspension interlocking anchor of the present invention when used, first select a ligament implant L (as shown in FIG. 5 two-point connection), the The ligament implant L can be an artificial ligament, an allogeneic ligament or an autogenous ligament, which is not limited in the present invention, the ligament implant L is penetrated from the second end lb of the hollow tube 1 and bypasses the limiter 2, so that the ligament implant L can hang and abut on the arc portion 21 of the limiter 2, the two ends of the ligament implant L expose the second end lb of the hollow tube 1, so that Ligament The implant L forms a symmetrically bent shape.
  • the ligament implant L can be an artificial ligament, an allogeneic ligament or an autogenous ligament, which is not limited in the present invention, the ligament implant L is penetrated from the second end lb of the hollow tube 1 and bypasses the limiter 2, so that the ligament implant L can hang and abut on the arc portion 21 of the limiter 2, the two ends of the ligament implant L expose the second end l
  • both ends of the ligament implant L hang into the tibial tunnel Y1, and finally use an interface nail F to penetrate the tibial tunnel Y1 from one side of the tibia Y, so that the ligament can be Both ends of the implant L are squeezed and positioned in the tibial tunnel Y1, thereby preventing the ligament implant L from being suspended for a long distance, to ensure that the fixing force for rebuilding the ligament implant L can be increased, and To avoid unstable swaying of the ligament implant L and expansion of the tunnel XI, it has the effect of improving postoperative quality and reducing related risks.
  • the ligament implant L hangs against the arc portion 21 of the limiter 2, the ligament implant L can be prevented from being damaged due to scratches.
  • the hollow tube body 1 has at least one growth-inducing hole 11, thereby, the femur X can grow toward the inside of the hollow tube body 1 through the at least one growth-inducing hole 11, so that the ligament implant L and The femur X can be combined comprehensively in a larger area to improve the healing stability after the operation and allow the patient to recover as soon as possible after the operation.
  • the cruciate ligament suspension interlocking fixator of the present invention can be made of metal material or human body absorbable material, and the present invention is not limited.
  • the cruciate ligament suspension interlocking fixator of the present invention is entirely implanted in the strand tunnel, the backstop structure abuts on the inner wall of the strand tunnel, and the ligament implant can be hung against Connected to the limiter, so that the ligament implant can be firmly positioned in the strand tunnel, thereby ensuring that the ligament implant will not cause unstable shaking and the situation of the tunnel expansion, and has a postoperative lift Quality and effectiveness of reducing related risks

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Rehabilitation Therapy (AREA)
  • Rheumatology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

Dispositif de fixation de verrou interne suspendu de ligaments croisés, qui est utilisé pour résoudre le problème de l'état de la technique dans lequel un implant de ligaments est susceptible de se relâcher après l'opération et qui comprend : un corps de tube creux (1) ayant au moins un trou d'induction de croissance (11) et une structure de non-retour (14), le ou les trous d'induction de croissance (11) pénétrant dans une surface de paroi intérieure (12) et une surface de paroi extérieure (13) du corps de tube creux (1), et la structure de non-retour (14) étant située au niveau de la surface de paroi extérieure (13) du corps de tube creux (1) ; et un élément de limitation (2), qui est situé dans le corps de tube creux (1), deux extrémités de l'élément de limitation (2) étant reliées à la surface de paroi intérieure (12).
PCT/CN2018/120235 2018-12-11 2018-12-11 Dispositif de fixation de verrou interne suspendu de ligaments croisés WO2020118509A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/120235 WO2020118509A1 (fr) 2018-12-11 2018-12-11 Dispositif de fixation de verrou interne suspendu de ligaments croisés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/120235 WO2020118509A1 (fr) 2018-12-11 2018-12-11 Dispositif de fixation de verrou interne suspendu de ligaments croisés

Publications (1)

Publication Number Publication Date
WO2020118509A1 true WO2020118509A1 (fr) 2020-06-18

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1093773A1 (fr) * 1999-10-21 2001-04-25 Karl Storz GmbH & Co. KG Corps de fixation biodégradable
CN102625680A (zh) * 2009-07-31 2012-08-01 拉思公司-科学研究与应用实验室 用于横向固定的人工韧带及其制备方法
CN104244848A (zh) * 2011-10-03 2014-12-24 史密夫和内修有限公司 双套环微孔钢板、卵圆形隧道导向器以及使用该卵圆形隧道导向器和双套环微孔钢板的acl重建方法
CN105640668A (zh) * 2012-04-03 2016-06-08 新特斯有限责任公司 移植物锚定件系统和方法
US9801708B2 (en) * 2004-11-05 2017-10-31 Biomet Sports Medicine, Llc Method and apparatus for coupling soft tissue to a bone
CN108852557A (zh) * 2018-06-22 2018-11-23 黄建明 一种交叉韧带修复用的固定件和固定系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1093773A1 (fr) * 1999-10-21 2001-04-25 Karl Storz GmbH & Co. KG Corps de fixation biodégradable
US9801708B2 (en) * 2004-11-05 2017-10-31 Biomet Sports Medicine, Llc Method and apparatus for coupling soft tissue to a bone
CN102625680A (zh) * 2009-07-31 2012-08-01 拉思公司-科学研究与应用实验室 用于横向固定的人工韧带及其制备方法
CN104244848A (zh) * 2011-10-03 2014-12-24 史密夫和内修有限公司 双套环微孔钢板、卵圆形隧道导向器以及使用该卵圆形隧道导向器和双套环微孔钢板的acl重建方法
CN105640668A (zh) * 2012-04-03 2016-06-08 新特斯有限责任公司 移植物锚定件系统和方法
CN108852557A (zh) * 2018-06-22 2018-11-23 黄建明 一种交叉韧带修复用的固定件和固定系统

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