CN101999951B - Memory alloy artificial cervical intervertebral disc - Google Patents

Memory alloy artificial cervical intervertebral disc Download PDF

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Publication number
CN101999951B
CN101999951B CN201010572813XA CN201010572813A CN101999951B CN 101999951 B CN101999951 B CN 101999951B CN 201010572813X A CN201010572813X A CN 201010572813XA CN 201010572813 A CN201010572813 A CN 201010572813A CN 101999951 B CN101999951 B CN 101999951B
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China
Prior art keywords
artificial intervertebral
intervertebral disc
intervertebral disk
artificial
disk body
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CN201010572813XA
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Chinese (zh)
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CN101999951A (en
Inventor
杜东鹏
达国祖
马悦辉
缪祥文
郭靖
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Lanzhou Lanfei Medical Instrument Co., Ltd.
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Xiamei Marmem Co Ltd Lanzhou
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    • 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
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Neurology (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)

Abstract

A memory alloy artificial cervical intervertebral disc comprises an artificial intervertebral disc body and a support plate sleeved with the artificial intervertebral disc body, wherein the artificial intervertebral disc body has conicity; drop preventing reverse stings are distributed on the upper and lower surfaces of the artificial intervertebral disc body; fixed branches are arranged at the two sides of the upper and lower surfaces; and drop preventing pawls are respectively arranged at the two ends at the inner side of each fixed branch. The intervertebral disc has simple process and shape, is easy to deform and insert, is stable in installation after complex, is convenient to use in operation, is secure and reliable in fixation, maintains the cervical vertebra motion range, reduces adjacent vertebral body complications, not only shortens the operation time and simplifies the operation, but also dispenses with bone removal and grafting, reduces more pains of the patient, maintains or increases the motion range of the vertebral articulations with lesions to some extent, avoids load of the adjacent vertebral articulations from increasing after fusion and fixation of the vertebral articulations with lesions, slows down degeneration of the adjacent vertebral articulations and realizes the aims of maintaining the movement functions and delaying and reducing secondary degeneration of the adjacent segments.

Description

Memorial alloy cervical vertebra artificial intervertebral disk
Technical field
The present invention relates to medical instruments field, particularly surgery, orthopaedics, spinal surgery are used for implanting Intrapyramidal a kind of memorial alloy cervical vertebra artificial intervertebral disk.
Background technology
At present common cervical vertebra treatment method has: cervical traction, enclose neck, massage, acupuncture, block therapy, through the excision of preceding road intervertebral disc of cervical vertebra, interbody bone graft fusion, Bryan cervical vertebra artificial intervertebral disk replacement operation etc., more than these expectant treatments, fusion or artificial intervertebral disk replacement operation all have problems: cervical traction, physical therapy, enclose therapies such as neck, massage, acupuncture, block therapy, herbal treatment, Western medicine therapy, all be relief of symptoms, can not effect a permanent cure.The cervical intervertebral disk excision of preceding road, intervertebral bone grafting (ilium piece) fusion generally can be removed patient's nerve compression preferably, improve corresponding clinical symptoms, but because its reconstruction mode is the movable sections of cervical vertebra is fixed and to be merged, cervical vertebra after the fusion is stable to be the stable of non-physiological state, cervical vertebra has lost corresponding motion segment, cause total range of motion to reduce, and may exist long term the neighbouring section regression to accelerate after surgery, finally cause new cervical vertebra sections to be got involved, the particularly fusion of multi-segmental, reduced the flexibility ratio of patient's life, its shortcoming is that wound is big, and is hemorrhage many, operating time is long, the complication rate height, it is big to get the bone amount from body, gets bone head of district time pain, the postoperative plant bone mass comes off easily, and postoperative can not early ambulation etc.For fear of these shortcomings, add again thereafter with the fixing plant bone mass of anterior plate, the probability that the plant bone mass postoperative is come off obviously lowers, and reaches postoperative greatly to get the shortcoming of bone district pain still unresolved but get the bone amount.Bryan cervical vertebra artificial intervertebral disk is the core by a polyurethane, and outside upper and lower surface titanium alloy casing coats and forms.This artificial intervertebral disk is the circular prosthese of an equal thickness, does not meet the thin physiological structure in the preceding thick back of intervertebral disc, need draw back during operation.And before the vertebral body callus is arranged on the patient's X-ray film in 3 years about 50% of postoperative, this vertebra joint loses degrees of motion.
Summary of the invention
The present invention will solve problems of the prior art exactly, provide a kind of be conducive to artificial intervertebral disk with suffer from intervertebral closely contact and fix, artificial intervertebral disk replacement operator in operation under the less destruction cervical vertebra prerequisite is inserted conveniently, effectively shorten operating time, implant the memorial alloy cervical vertebra artificial intervertebral disk that the back increases the stability of artificial intervertebral disk body.
Technical problem of the present invention adopts following technical proposals to solve:
A kind of memorial alloy cervical vertebra artificial intervertebral disk, form by an artificial intervertebral disk body with a gripper shoe of its suit, described artificial intervertebral disk body has tapering, be distributed with the anticreep agnail on the upper and lower surface of artificial intervertebral disk body, the dual-side of upper and lower surface is provided with fixing branch, and the inboard two ends of each fixing branch are respectively equipped with the anticreep pawl.Described gripper shoe cooperates socket with described artificial intervertebral disk body.
Described gripper shoe is horizontal U-shaped structure, and outer end, U-shaped mouth top and bottom is provided with mousing-hook.
The shape side-looking of described artificial intervertebral disk body is " W " type.
The present invention adopts the structure of being made by sheet material that certain taper is arranged, utilize the memory characteristic of memory alloy material, persistent pressure function after the recovery of shape, be conducive to artificial intervertebral disk with suffer from intervertebral closely contact and fix the strong fixing stability that can increase the trouble vertebra of formation; Adopt the fixing branch of band pawl simple in structure, fixing branch is inserted conveniently, effectively shortens operating time.Implant the stability that the back increases the artificial intervertebral disk body; Its main body two sides are respectively equipped with three anticreep agnails, can prevent deviating from of main body after the recovery of shape, have strengthened the stability of intervertebral disc more; The gripper shoe of the U-shaped structure of being made by sheet material after the recovery of shape, has the effect of persistent pressure, support to the intervertebral disk body, and its four mousing-hooks are simultaneously inserted in the hole of intervertebral disk bodies, and both are become one, and finish fixing jointly.The present invention can movable memory alloy artificial intervertebral disc by implant one at intervertebral space, has not only shortened operating time, has simplified operation technique, and has not needed to get bone, bone grafting, has reduced the many miseries of patient;-decide the mobility that degree keeps or increased pathological changes vertebra joint, reduced due to illness become vertebra joint converged fixed after, the phenomenon that adjacent vertebra joint load increases, slow down the regression that adjacent vertebra joint produces therefrom, realized keeping motor function, delay and reducing the purpose that the Secondary cases regression appears in adjacent segment.
With the artificial intervertebral disc of the basis of board making, art shapes is simple, and easily deformable inserting installed stable after the complex.Easy to use in operation, fixation, reliable.After this artificial intervertebral disk is installed, keep cervical vertebrate active degree, reduced contiguous vertebral body complication.Present technique has excellent application value and application prospect, and rational Application can obtain satisfactory effect, compares the quality of life that more helps to improve the patient to a certain extent with cervical fusion surgery, has good economic and social benefit.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is artificial intervertebral disk side view;
Fig. 4 is artificial intervertebral disk body front view;
Fig. 5 is the gripper shoe sketch map;
Fig. 6 is the gripper shoe vertical view.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described in further detail:
A kind of memorial alloy cervical vertebra artificial intervertebral disk is made up of an artificial intervertebral disk body 1 and a gripper shoe 2 that is mated socket.Artificial intervertebral disk body 1 has tapering, and this tapered configuration meets the physiological structure of cervical vertebral body, and distortion can be better docile and obedient after installing; Respectively be distributed with three anticreep agnails 4 on the upper and lower surface of artificial intervertebral disk body 1, after main body was installed, agnail was replied shape, strengthens its stability more.The dual-side of upper and lower surface respectively has two fixing branches 3 that play the persistent pressure effect, and the inboard two ends of each fixing branch 3 are respectively equipped with three anticreep pawls 5 respectively, after the installation, can effectively prevent from, and increase the stability of artificial intervertebral disk; The outside is provided with anticreep pawl 5.The shape side-looking of artificial intervertebral disk body 1 is " W " type.The horizontal U-shaped structure that gripper shoe 2 is made for sheet material has the effect of persistent pressure, support to the intervertebral disk body after the recovery of shape.Outer end, U-shaped mouth top and bottom is provided with 6, four mousing-hooks of two mousing-hooks respectively and inserts in the hole of intervertebral disk body, and intervertebral disc and gripper shoe are become one, and finishes the function of fixed support jointly.
Manufactured materials of the present invention is selected for use has the temperature memory function in the prior art, the material that has excellent biological compatibility simultaneously, and as Ti-Ni marmem, safe in human body, nontoxic in the clinical practice, nothing rejection.

Claims (2)

1. memorial alloy cervical vertebra artificial intervertebral disk, it is characterized in that being formed by an artificial intervertebral disk body (1) and a gripper shoe (2), described artificial intervertebral disk body (1) has tapering, the upper and lower surface of artificial intervertebral disk body (1) at one end connects, the other end is open structure, be distributed with anticreep agnail (4) on the lateral surface of upper and lower surface, the dual-side on the lateral surface of upper and lower surface is provided with fixing branch (3), and the inboard two ends of each fixing branch (3) are respectively equipped with anticreep pawl (5); The shape side-looking of described artificial intervertebral disk body (1) is " W " type, and described gripper shoe (2) is horizontal U-shaped structure, and gripper shoe (2) is arranged between the upper and lower surface of artificial intervertebral disk body (1), cooperates socket with described artificial intervertebral disk body (1).
2. memorial alloy cervical vertebra artificial intervertebral disk according to claim 1 is characterized in that outer end, described gripper shoe (2) U-shaped mouth top and bottom is provided with mousing-hook (6).
CN201010572813XA 2010-12-04 2010-12-04 Memory alloy artificial cervical intervertebral disc Active CN101999951B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010572813XA CN101999951B (en) 2010-12-04 2010-12-04 Memory alloy artificial cervical intervertebral disc

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Application Number Priority Date Filing Date Title
CN201010572813XA CN101999951B (en) 2010-12-04 2010-12-04 Memory alloy artificial cervical intervertebral disc

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CN101999951A CN101999951A (en) 2011-04-06
CN101999951B true CN101999951B (en) 2013-09-11

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103800101B (en) * 2014-02-28 2016-01-13 西安交通大学 A kind of anti-dislocation formula non-fused artificial cervical and intervertebral disc system
CN109157311B (en) * 2014-07-27 2020-09-15 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 Minimally invasive implantation shape memory interbody fusion cage
CN104546229B (en) * 2015-01-19 2017-01-04 南京航空航天大学 A kind of cervical artificial disc of the corner cut Ω type structure with superelevation mobility
CN104939953A (en) * 2015-06-29 2015-09-30 北京贝思达生物技术有限公司 Intervertebral disk prosthesis
CN110368149B (en) * 2019-08-05 2024-03-15 北京爱康宜诚医疗器材有限公司 Intervertebral disc prosthesis

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1457750A (en) * 2003-05-26 2003-11-26 沈强 Human cervical vertebrae saddle joint
US20080161924A1 (en) * 2007-01-02 2008-07-03 Zimmer Spine, Inc. Universal joint total disc replacement
CN201912273U (en) * 2010-12-04 2011-08-03 兰州西脉记忆合金股份有限公司 Artificial intervertebral disc of cervical vertebra made from memory alloy

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050222683A1 (en) * 2004-03-31 2005-10-06 Sdgi Holdings Shape memory alloy disc replacement device
CN2885175Y (en) * 2006-02-28 2007-04-04 杨洪武 Self-locking artificial cervical intervertebral disc
CN2904983Y (en) * 2006-02-28 2007-05-30 赵定麟 An artificial cervical articulatio intercentralis made from shape memory alloy
US20070239278A1 (en) * 2006-04-06 2007-10-11 Sdgi Holdings, Inc. Intervertebral prosthetic devices and methods
US20080249569A1 (en) * 2007-04-03 2008-10-09 Warsaw Orthopedic, Inc. Implant Face Plates
US8808380B2 (en) * 2007-08-27 2014-08-19 William Casey Fox Method and apparatus for an osteotomy fixation or arthrodesis cage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1457750A (en) * 2003-05-26 2003-11-26 沈强 Human cervical vertebrae saddle joint
US20080161924A1 (en) * 2007-01-02 2008-07-03 Zimmer Spine, Inc. Universal joint total disc replacement
CN201912273U (en) * 2010-12-04 2011-08-03 兰州西脉记忆合金股份有限公司 Artificial intervertebral disc of cervical vertebra made from memory alloy

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Effective date of registration: 20170526

Address after: 730000 No. 575 Chang Zhang Tan, Lanzhou hi tech Industrial Development Zone, Gansu, China

Patentee after: Lanzhou Lanfei Medical Instrument Co., Ltd.

Address before: 730000 Lanzhou, Chengguan District, Gansu Yan Nan Road, No. 14

Patentee before: Xiamei Marmem Co., Ltd., Lanzhou