CN114668562A - Novel bioactive zero-notch cervical vertebra fusion cage - Google Patents

Novel bioactive zero-notch cervical vertebra fusion cage Download PDF

Info

Publication number
CN114668562A
CN114668562A CN202210297173.9A CN202210297173A CN114668562A CN 114668562 A CN114668562 A CN 114668562A CN 202210297173 A CN202210297173 A CN 202210297173A CN 114668562 A CN114668562 A CN 114668562A
Authority
CN
China
Prior art keywords
interface screw
regulator
adjuster
fusion cage
novel
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.)
Pending
Application number
CN202210297173.9A
Other languages
Chinese (zh)
Inventor
蒋电明
李凯
郭艾
陈司南
吴俊杰
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.)
Third Affiliated Hospital Of Cqmu (gener Hospital)
Original Assignee
Third Affiliated Hospital Of Cqmu (gener Hospital)
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 Third Affiliated Hospital Of Cqmu (gener Hospital) filed Critical Third Affiliated Hospital Of Cqmu (gener Hospital)
Priority to CN202210297173.9A priority Critical patent/CN114668562A/en
Publication of CN114668562A publication Critical patent/CN114668562A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02Inorganic materials
    • A61L27/04Metals or alloys
    • A61L27/047Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56Porous materials, e.g. foams or sponges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Transplantation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Epidemiology (AREA)
  • Neurology (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses a novel bioactive zero-notch cervical fusion cage, which comprises a main body, an adjuster and an interface screw; the body comprises a central region and a peripheral region; the middle of the main body is a central area, and the peripheral area is arranged on the periphery of the central area; the adjuster and the interface screw are arranged on the outer wall of the peripheral zone; the two ends of the regulator 2 are serrated edges, the interface screw is fixedly arranged on the main body, and when the regulator rotates to a neutral position, the serrated edges are fixed with the embedded adjacent vertebral bodies and the interface screw by rotating the regulator. The zero-incisura intervertebral fusion device required by the novel cervical vertebra fusion device combines the front end of the fusion device with a self-locking device and an interface screw. Compared with the traditional titanium plate internal fixation system, the novel titanium plate internal fixation system can reduce soft tissue injury in operation, reduce dysphagia complications after operation and improve the satisfaction degree of patients.

Description

Novel bioactive zero-notch cervical vertebra fusion cage
Technical Field
The invention relates to the technical field of medical equipment, in particular to a novel bioactive zero-notch cervical fusion cage.
Background
With the development of the socioeconomic level, the life style of people gradually changes. In China, the population aging is intensified, the long-term work staff and the head-lowering family are increased, and the number of patients with cervical vertebra degenerative diseases is increased year by year and is in a youthful trend. For many patients, the clinical symptoms of cervical spondylosis patients cannot be relieved by related conservative treatment modes such as drug treatment, traditional Chinese medicine treatment, even rehabilitation physiotherapy and the like. Surgical treatment becomes an important treatment modality for such patients.
Currently, the main clinical surgical methods include anterior cervical discectomy and decompression bone fusion (ACDF), Artificial Cervical Disc Replacement (ACDR), and other surgical methods. ACDF operation is still clinically selected at present in view of high cost of artificial cervical intervertebral discs and strict operation indications. The ideal material for repair of bone defects between vertebral bodies following ACDF surgery is autologous graft (e.g., iliac crest autograft) filling. However, the amount of the autogenous bone is small, secondary trauma is easy to cause, and complications are relatively high, so the autogenous bone is replaced by the intervertebral fusion cage in clinic. Compared with the autologous bone transplantation, the interbody fusion cage can immediately restore the intervertebral height or the physiological curvature of the vertebral body. Meanwhile, the gradually fusing device with the porous structure can increase the aperture of the intervertebral space, improve the bone grafting fusion rate, finally reduce the complications of bone collapse, infection, chronic pain and the like, and promote the recovery of patients.
Meanwhile, cervical fusion is the gold standard for treating degenerative diseases such as intervertebral disc, and the currently common operation mode is usually fixed by adding a steel plate under the condition of applying the intervertebral fusion device. The operation mode is easy to cause the steel plate to shift due to the loosening of the screw, and the steel plate is placed in the esophagus for a long time to cause potential damage. The steel plate is arranged on the surface of the cervical vertebra, so that the possibility that a patient feels foreign bodies in swallowing or swallows difficultly and even suffers from laryngeal nerve injury exists for a long time. Therefore, new bioactive materials are receiving more and more attention to making the zero-notch cervical fusion cage.
From the structure of the cervical vertebra fusion cage, the most common clinical application is the most common application of the titanium nail plate internal fixing system at present. It can increase the stability of reconstructed cervical vertebra, raise bone grafting fusion rate and lower the sinking rate of fusion device. In contrast, the anterior titanium intralamellar fixation system surgery also results in potential esophageal injury and postoperative discomfort to the patient from swallowing for a long period of time. The greater rigidity of the titanium nail plate can cause the stress of the adjacent vertebral body segment after internal fixation to be increased, and the degenerative change is accelerated.
Disclosure of Invention
In order to solve the problems in the prior art, the embodiment of the invention provides a novel bioactive zero-notch cervical fusion cage. The technical scheme is as follows:
in one aspect, a novel bioactive zero notch cervical fusion cage is provided, including: a body, an adjuster, and an interface screw; the body comprises a central region and a peripheral region; the middle of the main body is a central area, and the peripheral area is arranged on the periphery of the central area; the adjuster and the interface screw are arranged on the outer wall of the peripheral zone;
the both ends of regulator 2 are the cockscomb structure edge, interface screw fixed set up in on the main part, when the regulator is rotatory to neutral position, make cockscomb structure edge and embedding adjacent centrum and interface screw fixed through rotatory the regulator.
Further, the adjuster comprises a knob, and the knob adopts a hollow thread structure; the main body is provided with a thread groove; the adjuster is rotated to a neutral position by the thread groove.
Further, the regulator further comprises a rotary rod; the rotary rods are arranged on two sides of the rotary knob, and the tail ends of the rotary rods are saw-toothed edges.
Further, the central region employs a high porosity.
Further, the peripheral zone employs a low porosity.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. the novel cage can be made of bioactive trabecular metal (porous tantalum material) or potentially other bioactive materials. The porosity of the porous material is high, and on the premise of ensuring mechanical support, the porous material can promote nutrient exchange in human body environment, promote bone ingrowth and osseointegration, and finally promote patient recovery.
2. The interbody fusion cage designed by the method is based on the centrum anatomical data of Chinese people, and the adopted arc design is more matched with the centrum of a human body, so that the centrum sedimentation rate is reduced, and the application range is wider
3. The zero-incisura intervertebral fusion device required by the novel cervical vertebra fusion device combines the front end of the fusion device with a self-locking device and an interface screw. Compared with the traditional titanium plate internal fixation system, the novel titanium plate internal fixation system can reduce soft tissue injury in operation, reduce dysphagia complications after operation and improve the satisfaction degree of patients.
4. This novel cervical vertebra fuses ware does not need additionally to plant the bone, does not need the screw steel sheet fixed, has reduced muscle in the art, and the vascular injury risk reduces the operation risk, can indirectly promote the osseointegration.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of a novel bioactive zero notch cervical fusion cage according to an embodiment of the present invention;
FIG. 2 is a front view of a novel bioactive zero notch cervical fusion cage according to an embodiment of the present invention;
FIG. 3 is a central side sectional view of the novel bioactive zero notch cervical fusion cage according to an embodiment of the present invention;
fig. 4 is a top view of a novel bioactive zero notch cervical fusion cage according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention provides a novel bioactive zero-notch cervical fusion cage, which is shown in figures 1-4 and comprises: a body 1, an adjuster 2 and an interface screw 3; the main body 1 comprises a central zone 11 and a peripheral zone 12; the middle of the main body 1 is a central area 11, and the peripheral area 12 is arranged on the periphery of the central area 11; the adjuster 2 and the interface screw 3 are both arranged on the outer wall of the peripheral zone 12;
the two ends of the regulator 2 are serrated edges, the interface screw 3 is fixedly arranged on the main body 1, and when the regulator 2 rotates to a neutral position, the serrated edges are fixed with the embedded adjacent vertebral bodies and the interface screw by rotating the regulator.
Specifically, the position of the interface screw is fixed, that is, the interface screw is locked after the adjuster is rotated to the neutral position, so as to prevent the adjuster from being shifted too much; at the same time, the rotation of the regulator to the neutral position is intended to insert the upper and lower vertebral bodies, respectively, to fix them and finally to promote bone fusion.
In this embodiment, the intervertebral fusion cage is fixed by rotating the adjuster in front of the fusion cage to lock the upper and lower vertebral bodies, and after the adjuster rotates to the neutral position, an additional interface screw is added for fixing again to prevent displacement.
Further, the adjuster comprises a knob, and the knob adopts a hollow thread structure; the main body is provided with a thread groove; the adjuster is rotated to a neutral position by the thread groove.
Further, the regulator further comprises a rotary rod; the rotary rods are arranged on two sides of the knob, and the tail ends of the rotary rods are provided with saw-toothed edges.
Specifically, the regulator adopts a rotary regulator, and the middle circle of the regulator is designed into a thread structure and is rotated to a target position. Meanwhile, the sawtooth grooves of the rotary rod are utilized, the middle thread groove track is utilized to be inserted into the adjacent upper and lower vertebral bodies counterclockwise by 90 degrees, and the vertebral bodies are locked.
Further, the central region employs a high porosity. The peripheral zone employs a low porosity.
Specifically, the pore diameter of the porous material is adjusted by the actual characteristics of different materials on the premise of determining the lowest compressive strength of the interbody fusion cage.
In this embodiment, the cervical fusion cage is made of trabecular bone metal (porous tantalum material) with biological activity or potentially other biological active materials; the reason is as follows:
1. according to the characteristics of biological materials made of different materials, the pore diameters, the porosity and the mechanical strength of the materials can be adjusted, so that the bone tissue of a human body is simulated, the elastic modulus is close to that of normal bone, the stress shielding can be reduced, the bone ingrowth can be promoted, and the bone integration can be promoted.
2. The porous tantalum has a three-dimensional structure with holes similar to human cancellous bone and communicated with each other, has high porosity, can promote nutrient exchange in the holes, is more favorable for bone ingrowth and promotes osseointegration; porous tantalum.
3. Can construct a porous structure, and design a fusion cage which can better meet the characteristics of Chinese people through different specifications, thereby meeting the biomechanical requirements of cervical vertebra.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. the novel cage can be made of bioactive trabecular metal (porous tantalum material) or potentially other bioactive materials. The porosity of the porous material is high, and on the premise of ensuring mechanical support, the porous material can promote nutrient exchange in human body environment, promote bone ingrowth and osseointegration, and finally promote patient recovery.
2. The interbody fusion cage designed herein is based on the centrum anatomical data of Chinese people, and the adopted arc design is more matched with the centrum of human body, so that the centrum sedimentation rate is reduced, and the application range is wider
3. The zero-incisura intervertebral fusion device required by the novel cervical vertebra fusion device combines the front end of the fusion device with a self-locking device and an interface screw. Compared with the traditional titanium plate internal fixing system, the novel titanium plate internal fixing system can reduce soft tissue injury in operation, reduce dysphagia complications after operation and improve the satisfaction degree of patients.
4. This novel cervical vertebra fuses ware does not need additionally to plant the bone, does not need the screw steel sheet fixed, has reduced muscle in the art, and the vascular injury risk reduces the operation risk, can indirectly promote the osseointegration.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a novel zero notch cervical vertebra of biological activity fuses ware which characterized in that includes: a body, an adjuster, and an interface screw; the body comprises a central region and a peripheral region; the middle of the main body is a central area, and the periphery of the central area is provided with the peripheral area; the adjuster and the interface screw are arranged on the outer wall of the peripheral zone;
the both ends of regulator 2 are the cockscomb structure edge, interface screw fixed set up in on the main part, when the regulator is rotatory to neutral position, make cockscomb structure edge and embedding adjacent centrum and interface screw fixed through rotatory the regulator.
2. The novel bioactive zero notch cervical fusion cage according to claim 1, wherein the adjuster comprises a knob, the knob is of a hollow thread structure; the main body is provided with a thread groove; the adjuster is rotated to a neutral position by the thread groove.
3. The novel bioactive zero notch cervical fusion cage of claim 2, wherein said actuator further comprises a rotating rod; the rotary rods are arranged on two sides of the rotary knob, and the tail ends of the rotary rods are saw-toothed edges.
4. The novel bioactive zero notch cervical fusion cage of claim 1 wherein said central zone is of high porosity.
5. The novel bioactive zero notch cervical fusion cage of claim 1 wherein said peripheral zone is of low porosity.
CN202210297173.9A 2022-03-24 2022-03-24 Novel bioactive zero-notch cervical vertebra fusion cage Pending CN114668562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210297173.9A CN114668562A (en) 2022-03-24 2022-03-24 Novel bioactive zero-notch cervical vertebra fusion cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210297173.9A CN114668562A (en) 2022-03-24 2022-03-24 Novel bioactive zero-notch cervical vertebra fusion cage

Publications (1)

Publication Number Publication Date
CN114668562A true CN114668562A (en) 2022-06-28

Family

ID=82074139

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210297173.9A Pending CN114668562A (en) 2022-03-24 2022-03-24 Novel bioactive zero-notch cervical vertebra fusion cage

Country Status (1)

Country Link
CN (1) CN114668562A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050049590A1 (en) * 2003-03-07 2005-03-03 Neville Alleyne Spinal implant with securement spikes
EP2065016A1 (en) * 2007-11-27 2009-06-03 Jin-Fu Lin Trans-vertebral and intra-vertebral plate and fusion cage device for spinal interbody fusion and method of operation
US20100185289A1 (en) * 2009-01-20 2010-07-22 Incite Innovation Llc Interbody fusion device and method of operation
US20110230971A1 (en) * 2009-04-15 2011-09-22 Synthes Usa, Llc Arcuate fixation member
US20130073045A1 (en) * 2011-09-21 2013-03-21 Tov Inge Vestgaarden Method and apparatus for spinal interbody fusion including fixation or locking plate
US20150142114A1 (en) * 2013-11-21 2015-05-21 Perumala Corporation Intervertebral Disk Cage and Stabilizer
CN108578019A (en) * 2018-04-12 2018-09-28 深圳清华大学研究院 Rotate zero incisura Invasive lumbar fusion device of fixed anterior cervical vertebrae
CN110236746A (en) * 2019-06-19 2019-09-17 重庆医科大学附属第三医院(捷尔医院) A kind of cervical vertebral fusion cage
CN112294497A (en) * 2020-11-23 2021-02-02 博能华医疗器械(北京)有限公司 Zero-notch interbody fusion cage
KR20210020748A (en) * 2020-03-30 2021-02-24 주식회사 엔닥 Cage for vertebra
CN215535338U (en) * 2021-06-16 2022-01-18 浙江科惠医疗器械股份有限公司 Anterior cervical locking fusion cage

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050049590A1 (en) * 2003-03-07 2005-03-03 Neville Alleyne Spinal implant with securement spikes
EP2065016A1 (en) * 2007-11-27 2009-06-03 Jin-Fu Lin Trans-vertebral and intra-vertebral plate and fusion cage device for spinal interbody fusion and method of operation
US20100185289A1 (en) * 2009-01-20 2010-07-22 Incite Innovation Llc Interbody fusion device and method of operation
US20110230971A1 (en) * 2009-04-15 2011-09-22 Synthes Usa, Llc Arcuate fixation member
US20130073045A1 (en) * 2011-09-21 2013-03-21 Tov Inge Vestgaarden Method and apparatus for spinal interbody fusion including fixation or locking plate
US20150142114A1 (en) * 2013-11-21 2015-05-21 Perumala Corporation Intervertebral Disk Cage and Stabilizer
CN108578019A (en) * 2018-04-12 2018-09-28 深圳清华大学研究院 Rotate zero incisura Invasive lumbar fusion device of fixed anterior cervical vertebrae
CN110236746A (en) * 2019-06-19 2019-09-17 重庆医科大学附属第三医院(捷尔医院) A kind of cervical vertebral fusion cage
KR20210020748A (en) * 2020-03-30 2021-02-24 주식회사 엔닥 Cage for vertebra
CN112294497A (en) * 2020-11-23 2021-02-02 博能华医疗器械(北京)有限公司 Zero-notch interbody fusion cage
CN215535338U (en) * 2021-06-16 2022-01-18 浙江科惠医疗器械股份有限公司 Anterior cervical locking fusion cage

Similar Documents

Publication Publication Date Title
Matge Cervical cage fusion with 5 different implants: 250 cases
Yang et al. Comparison of anterior cervical fusion by titanium mesh cage versus nano-hydroxyapatite/polyamide cage following single-level corpectomy
US20060129243A1 (en) Interbody spinal device
CN201040010Y (en) Full contact type vertebral column titanium netted bone grafting fusion device
CN204839838U (en) Artifical neck intervertebral disc false body
US10751194B2 (en) Bionic dislocation-proof artificial lumbar vertebrae and disc complex
CN108514465A (en) Invasive lumbar fusion device filled with artificial bone
CN105726172B (en) A kind of artificial cervical joint suitable for Cervical vertebra
CN101999951B (en) Memory alloy artificial cervical intervertebral disc
Vaccaro et al. Early findings in a pilot study of anterior cervical fusion in which bioabsorbable interbody spacers were used
CN205598056U (en) Artifical cervical vertebra joint suitable for lower cervical vertebra
TWM273326U (en) Prosthetic cage for spinal fusion
CN108294850A (en) The cervical vertebra Total spondylectomy art implantable prosthesis device of 3D printing
CN1057440C (en) Carbon fibre reinforcing polyether etherketoe double screw bolt internal fixator for cervical vertebrae
CN114668562A (en) Novel bioactive zero-notch cervical vertebra fusion cage
CN105266929B (en) A kind of composable allosome cortex axis of bone is to fusion device
CN211300524U (en) 3D prints bionical anticreep movable artificial cervical vertebra and intervertebral complex of connecting
CN114469458A (en) 3D prints bionical artificial intervertebral joint prosthesis
CN220025315U (en) Metal 3D printed extreme outer side approach lumbar interbody fusion cage
CN111265347A (en) Intervertebral fusion cage
CN217448145U (en) 3D prints bionical artificial intervertebral joint prosthesis
CN205434005U (en) Neck intervertebral disc false body
CN211271424U (en) Allogeneic cortical cancellous bone embedded cervical interbody fusion cage
CN218636158U (en) Precession type integrated movable artificial cervical vertebra
CN218961042U (en) OLIF lumbar vertebra fusion device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination