CN201445571U - Composite arthrosis of artificial cervical spine - Google Patents
Composite arthrosis of artificial cervical spine Download PDFInfo
- Publication number
- CN201445571U CN201445571U CN200920034141XU CN200920034141U CN201445571U CN 201445571 U CN201445571 U CN 201445571U CN 200920034141X U CN200920034141X U CN 200920034141XU CN 200920034141 U CN200920034141 U CN 200920034141U CN 201445571 U CN201445571 U CN 201445571U
- Authority
- CN
- China
- Prior art keywords
- vertebral body
- body parts
- retainer ring
- spherical surface
- link
- 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.)
- Expired - Lifetime
Links
Images
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
- A61F2/30—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
Abstract
The utility model discloses a composite arthrosis of artificial cervical spine, which consists of two fixing parts that are arranged symmetrically up and down, a centrum part connected between the two fixing parts by connecting parts, and two connecting parts; the fixing part is in L-shape and is divided into a front wing part and a base part; the front wing part is provided with a locking screw hole; the middle of the base part of the fixing part is provided with a convex inverted-dentation antiskid trough; the middle part of the centrum part is provided with a transversely through bone-grafting hole; the upper side and the lower side of the center of the axis line of the centrum part are provided with a cavity which is used for installing the connecting parts; one end of the connecting part is arranged in the cavity by a fixed ring; and the other end of the connecting part is connected with the fixing part, thus forming a stable ball-socket chute arthrosis. In the utility model, the composite arthrosis is expected to replace the existing bone-drafting method and become a standard method for the reconstruction of clinical centrum.
Description
Technical field
This utility model carries out the device that cervical vertebra is rebuild after relating to time full excision of a kind of cervical vertebral body, be particularly related to a kind of artificial cervical complex joint, this artificial cervical complex joint adopts that the normal cervical vertebra of simulation carries out that cervical vertebra is dissected, stability and motion are tripartite looks unfamiliar the bionical of rational reconstruction and is achieved.
Background technology
For infection, tumor or the degenerated disease of cervical vertebra, need to carry out cervical vertebral body time full excision under a lot of situations clinically, then need afterwards the sections of excision is rebuild.At present, common clinically method for reconstructing mainly comprises two kinds, i.e. sections bone-graft fusion and artificial vertebral body displacement.The method of bone-graft fusion as the standard method of present clinical capable cervical vertebral body time full excision back reconstruction, is to use from body or allograph bone to organize the damaged sections of filling, and additional simultaneously internal fixation carries out cervical stability and rebuilds.This method has realized the stability reconstruction of cervical vertebra by bone grafting and last the next interpyramidal bone fusion, eliminated pain, but this reconstruction mode is not ideal dissection to be rebuild, and make the reconstruction sections completely lose activity, influenced the mass motion function of cervical vertebra, at a specified future date simultaneously also can causing closed on the concentrated regression that causes of sections intervertebral disc stress.The existing so far multiple design of artificial vertebral body, but all be that there is the sections LOM equally in the stability of rebuilding cervical vertebra by the mode of bone-graft fusion or fixing certainly or additional internal fixation, the problem of neighbouring section intervertebral disc degeneration at a specified future date is not physiological reconstruction truly.Minority is considered restructure from motion and the artificial vertebral body that designs, all because its motion mode is different with the motion mode under the physiological conditions, or the reason of poor stability, and cause proving an abortion.Non-clinically at present melting property reconstruction has become development trend, at this problem, produced artificial hip joint, knee joint, ankle joint, product miscellaneous such as elbow joint and artificial intervertebral disk, and be widely used in clinical, cure fast, respond well, clinical long-term effect is reliable, for spinal surgery, the generation of artificial intervertebral disk is with historically new significance undoubtedly, artificial intervertebral disk is ripe gradually at present, the unisegmental non-fusion of cervical vertebra is rebuild, produced such as Bryandisc, good quality production such as Prestige, but rebuild for the non-fusion after the cervical vertebra subtotal ectomy, also there is not good method to solve this problem at present, therefore, the applicant has designed a kind of artificial cervical complex joint in earlier stage, preliminary biomechanics Research shows, its ball-and-socket joint has kept cervical vertebrate active degree to a certain extent, on the road of non-fusion reconstruction, new thinking has been proposed, on this basis, the applicant has further studied the proper motion pattern of cervical vertebra, comprehensive former studies is reached a conclusion, the motion of cervical vertebra is not simple rotation, but the coupled motions of rotation and translation are coupled with interpyramidal relative displacement between the adjacent vertebral bodies in rotation, the next relatively vertebral body of upper vertebral body has the variable center that rotatablely moves, initial stage design-the ball-and-socket joint of artificial cervical complex joint has the fixed center that rotatablely moves like this, and its motor pattern is simple rotatablely moving, and exists than big difference with the motor pattern of normal cervical vertebra.
According to the data-searching that the applicant did, up to now, also there is not a kind of method can take into account stability and mobility and the special coupled motions pattern of cervical vertebra, the real physiological that realizes is rebuild, the artificial joint that has only a kind of uniqueness of design, simulate the motor pattern of normal cervical vertebra, it is bionical to realize truly that cervical vertebra is rebuild.
The utility model content
The purpose of this utility model is, a kind of artificial cervical complex joint is provided, this artificial cervical complex joint is by " reproducing " original intervertebral disc and vertebral body, can recover mobility between vertebral body, realized the physiological reconstruction of cervical vertebra, both recover the dissection sequence and the stability of cervical vertebra, kept the normal physiological activity degree of damaged sections simultaneously again.
In order to realize above-mentioned task, this utility model is taked following technical solution:
A kind of artificial cervical complex joint is characterized in that, this artificial cervical complex joint is made up of symmetrically arranged fixed part, vertebral body parts and two links about in the of two, and the vertebral body parts are connected between the fixed part by link;
Described fixed part is divided into upper fixing element and following fixture, the shape of upper fixing element and following fixture is the L type, be divided into forward wing and basilar part on the fixture, wherein, the forward wing of upper fixing element and its basilar part form less than 90 ° of angles, and the forward wing of following fixture and its basilar part form greater than 90 ° of angles; Screw hole is arranged on forward wing, in the middle of basilar part, be provided with the pawl shape anti-slip tank of projection;
The middle part of described vertebral body parts is provided with the bone grafting hole of lateral direction penetrating, is provided with the die cavity that is used for mounting and connection parts in the both sides up and down at vertebral body component axes center, and this die cavity comprises reentrant cylindrical cavity and is positioned at the spherical surface hill of cavity bottom center;
The shape of described link is divided into column and spherical structure, and spherical structure comprises concave spherical surface, and the spherical surface hill of concave spherical surface and vertebral body component type intracavity matches; Vertebral body parts both sides are respectively equipped with the alignment pin lock hole, and retainer ring is provided with the retainer ring lock hole, by alignment pin retainer ring are locked in the reentrant cylindrical cavity;
Link one end is installed in the die cavity by retainer ring, and the other end is connected with fixed part, constitutes stable ball-and-socket chute joint.
Relative motion mode between described fixed part and the vertebral body parts is the spherical surface hill slip of the spherical structure of link along vertebral body component type intracavity.
The spherical structure of described link is along the spherical surface hill rotation of vertebral body component type intracavity, produce the degrees of rotation of revolving of 0-14 degree between fixed part and the vertebral body parts in all directions, the column of link is swung in the space between itself and the retainer ring, produce the displacement of 0-2mm between fixed part and the vertebral body parts, form the coupled motions pattern in ball-and-socket chute joint.
The technical characterstic that artificial cervical complex joint of the present utility model brings is can recover the coupled motions mode under the cervical vertebra sections normal condition when rebuilding cervical stability, thereby reach real physiological reconstruction.The method that is expected to replace existing bone-graft fusion becomes the standard method of clinical capable vertebral body reconstruction.
Description of drawings
Fig. 1 is an artificial cervical complex joint contour structures sketch map of the present utility model.
Fig. 2 be Fig. 1 vertically to profile.
Fig. 3 is the side structure sketch map of Fig. 1.
Fig. 4 is the Facad structure sketch map of Fig. 1.
Fig. 5 is a fixed part sphere stereoscopic structural representation among Fig. 1.
Fig. 6 be among Fig. 1 the fixed part sphere vertically to profile.
Fig. 7 is the structural representation of retainer ring among Fig. 1.
Fig. 8 be among Fig. 1 retainer ring vertically to profile.
Fig. 9 is the structural representation of fixed part among Fig. 1.
Figure 10 is the structural representation of vertebral body parts among Fig. 1.
Among the figure: 1, fixed part; 2, vertebral body parts; 3, link; 4, fixed part basilar part; 5, screw hole; 6, fixed part forward wing; 7, alignment pin lock hole; 8, pawl shape anti-slip tank; 9, retainer ring; 10, retainer ring lock hole; 11, retainer ring arcwall face; 12, the column of link; 13, spherical structure; 14, spherical surface hill; 15, concave spherical surface; 16, reentrant cylindrical cavity; 17, retainer ring outlet diameter; 18, retainer ring inlet diameter; 19, column diameter; 20, the corresponding string of spherical structure section circular arc; 21, bone grafting hole.
Below in conjunction with drawings and Examples this utility model is described in further detail.
The specific embodiment
Studies show that, carry out vertebral body prosthesis and bone-graft fusion merely and come the damaged sections that is equivalent to two intervertebral disc and a vertebral body is rebuild, can not fundamentally solve the difficult problem of physiological cervical vertebral reconstructing.Have only " reproducing " original intervertebral disc and vertebral body fully, recover the mobility of articuli intervertebrales, could truly carry out the physiological reconstruction cervical vertebra.
Referring to accompanying drawing 1, artificial cervical complex joint of the present utility model is made up of symmetrically arranged fixed part 1 and vertebral body parts 2 and two links 3 about in the of two, and vertebral body parts 2 are connected between the fixed part 1 by link 3;
Fixed part 1 is divided into upper fixing element and following fixture, the shape of upper fixing element and following fixture is the L type, be divided into forward wing 6 and basilar part 4 on the fixture, wherein, the forward wing 6 of upper fixing element forms less than 90 ° of angles with its basilar part 4, and the forward wing 6 of following fixture forms greater than 90 ° of angles with its basilar part 4; Screw hole 5 is arranged on forward wing 6, in the middle of basilar part 4, be provided with the pawl shape anti-slip tank 8 of projection;
The vertebral body parts are symmetrical structure up and down, the middle part of vertebral body parts 2 is provided with the bone grafting hole 21 of lateral direction penetrating, both sides up and down in vertebral body parts 2 axis centre are provided with the die cavity that is used for mounting and connection parts 3, and this die cavity comprises reentrant cylindrical cavity 16 and is positioned at the spherical surface hill 14 of cavity bottom center;
The shape of link 3 is divided into column 12 and spherical structure 13, and spherical structure 13 comprises concave spherical surface 15, and concave spherical surface 15 matches with the spherical surface hill 14 of vertebral body component type intracavity;
Concave spherical surface 15 is homocentric with the spherical surface hill 14 of vertebral body component type intracavity, spherical structure 13 differs 1mm with spherical surface hill 14 radiuses, be the thickness of spherical structure 13, retainer ring outlet diameter 17 is than link column diameter 19 big 2mm, but retainer ring inlet diameter 18 is less than the length of the corresponding string 20 of spherical structure 13 section circular arcs, when guaranteeing not only to slide in the joint, the column 12 of link can not deviate from, and when having realized the joint rotation, relative displacement between fixed part 1 and the vertebral body parts 2, its motion mode are that the spherical structure 13 of link slides along the spherical surface body projection 14 of vertebral body parts.
The spherical structure 13 of link 3 is along spherical surface hill 14 rotations of vertebral body component type intracavity, produce the degrees of rotation of revolving of 0-14 degree between fixed part 1 and the vertebral body parts 2 in all directions, the column 12 of link is swung in the space between itself and the retainer ring 9, produce the displacement of 0-2mm between fixed part 1 and the vertebral body parts 2, form the coupled motions pattern in ball-and-socket chute joint.
Below be the specific embodiment that the utility model people provides, need to prove that this utility model is not limited to this embodiment.
The formation that in Fig. 1,2,3,4, has shown the artificial cervical complex joint of present embodiment. to form by two symmetric fixed parts 1, intermediary vertebral body parts 2 and two links 3. fixed part 1 is divided into upper fixing element and following fixture, the shape of upper fixing element and following fixture is the L type, be divided into forward wing 6 and basilar part 4 on the fixture, 2 screw hole 5 are arranged on the forward wing 6, wherein, the forward wing 6 of upper and lower two fixtures is different with the angle that separately basilar part 4 forms respectively, be respectively 80 degree, 100 degree, to adapt to the normal curvature of cervical vertebra; There is pawl shape anti-slip tank 8 at the center of basilar part 4, be used for fixing the artificial cervical complex joint system, basilar part 4 is being connected with the column 12 of link 3 with the center of forward wing 6 relative sides, and link 3 is made of column 12 and spherical structure 13, and spherical structure 13 comprises concave spherical surface 15; Vertebral body parts 2 are rectangular structure, and the axis centre in vertebral body parts both sides about in the of 2 is useful on the die cavity of mounting and connection parts 3, do not connect between the die cavity, and die cavity comprises reentrant cylindrical cavity 16 and is positioned at the spherical surface hill 14 of cavity bottom center; Spherical structure 13 for link 3 between fixed part 1 and the vertebral body parts 2 is combined closely with spherical surface hill 14; Vertebral body parts 2 both sides are respectively equipped with alignment pin lock hole 7, and retainer ring 9 is provided with retainer ring lock hole 10, by alignment pin retainer ring 9 are locked in the cavity; Link 3 one ends are installed in the die cavity by retainer ring 9, and the other end is connected with fixed part 1, form stable ball-and-socket chute joint.
On the make, should make the concave spherical surface 15 of link parts 3 homocentric with the spherical surface hill 14 of reentrant cylindrical cavity 16 bottom center of vertebral body parts 2, the outlet diameter 17 of retainer ring 9 is than the diameter 19 big 2mm of the column 12 of link, but the inlet diameter 18 of retainer ring 9 is less than the length of the corresponding string 20 of spherical structure 13 section circular arcs, when guaranteeing not only to slide in the joint, the column 12 of link can not deviate from, and when having realized the joint rotation, relative displacement between fixed part 1 and the vertebral body parts 2, its motion mode are spherical surface hill 14 slips of the spherical structure 13 of link along the vertebral body parts; And should make the degrees of rotation of revolving that has the 0-14 degree between fixed part 1 and the vertebral body parts 2 in all directions, and in rotation, produce the displacement of 0-2mm, form the coupled motions pattern in ball-and-socket chute joint.Its maximum displacement is column diameter 19 poor of retainer ring outlet diameter 17 and link 3.The middle part of vertebral body parts 2 is provided with the bone grafting hole 21 of lateral direction penetrating, as bone grafting.
The shape of link 3 is divided into column 12 and spherical structure 13 shown in Fig. 5,6, and spherical structure 13 comprises concave spherical surface 15, and concave spherical surface 15 matches with the spherical surface hill 14 of vertebral body component type intracavity; Fixed part basilar part 4 is connected with the column 12 of link by screw thread with the center of fixed part forward wing 6 relative sides, the concave spherical surface 15 of link 3 is homocentric with the spherical surface hill 14 of reentrant cylindrical cavity 16 bottom center of vertebral body parts 2, spherical structure 13 differs 1mm with spherical surface hill 14 radiuses, is the thickness of spherical structure 13.
The structure of retainer ring as shown in Figure 7, it is a circular ring, retainer ring outlet diameter 17 is than link column diameter 19 big 2mm, but retainer ring inlet diameter 18 is less than the length of the corresponding string 20 of spherical structure 13 section circular arcs, the arcwall face 11 of its lower surface contacts with spherical structure 13, alignment pin with retainer ring 9 lockings, forms stable ball-and-socket chute joint by retainer ring lock hole 10.
Fixed part 1 structure as shown in Figure 8, fixed part 1 is divided into upper fixing element and following fixture, its shape is L-shaped, be divided into forward wing 6 and basilar part 4 on the fixture, forward wing 6 has certain radian, can better fit with the cervical vertebral body leading edge, fixture forward wing 6 is provided with 2 screw hole 5, lock screw is implanted vertebral body by screw hole 5, on, the forward wing 6 of following two fixtures is different with the angle that its basilar part 4 forms respectively, is respectively 80 degree and 100 degree, and the normal curvature that adapts to cervical vertebra changes, basilar part 4 has pawl shape anti-slip tank 8 with the center of forward wing homonymy, is used for fixing artificial cervical complex joint.
The structure of vertebral body parts as shown in Figure 9, vertebral body parts 2 are cuboid, the middle part of vertebral body parts 2 is provided with the bone grafting hole 21 of lateral direction penetrating, both sides up and down in vertebral body parts 2 axis centre are provided with the die cavity that is used for mounting and connection parts 3, this die cavity comprises reentrant cylindrical cavity 16 and is positioned at the spherical surface hill 14 of cavity bottom center, alignment pin passes alignment pin lock hole 7, ends at retainer ring lock hole 10, locking retainer ring 9; Form crude shape hydroxyapatite coating layer around the bone grafting hole 21 of vertebral body parts 2.
The artificial cervical complex joint of present embodiment preparation has been realized the physiological reconstruction of cervical vertebra, at first this structure has realized stability, recovered the physiological activity degree of cervical vertebra, this structure is when sliding in addition, produced relative displacement between the spherical surface hill 14 of the column 12 of link and vertebral body parts 2 die cavity bottom surfaces, limit the size of its displacement by retainer ring 9, guarantee that the stability in this joint and the physiological of cervical vertebra motor pattern rebuild.
The making material of the artificial cervical complex joint of present embodiment preparation is selected vitallium.
Artificial cervical complex joint operation principle of the present utility model is, during implantation, make the screw hole 5 on the fixture forward wing 6 be implanted into screw by intervertebral disc to adjacent normal vertebral body, thread lock screw by screw hole, and make combining closely between pawl shape anti-slip tank 8 and adjacent vertebral bodies, thereby obtain the stable at once of fixed part 1; Induce bone to grow into by the titanium porous coating of fixed part basilar part 4 dorsal parts and obtain at a specified future date stablizing.The powerful frictional force of the crude shape hydroxyapatite coating layer by vertebral body parts one side reaches the stable at once of vertebral body parts 2; By bone grafting in the bone grafting pipeline that connects and time part vertebral fusion of full excision back two ends remnants, and the bone of side matsurface grows into, and the long term that obtains vertebral body is stable.By the locking of retainer ring 9 and alignment pin, form stable ball-and-socket chute joint, make the ball-and-socket chute close internode and be difficult to dislocation, the nearly long term that reaches articuli intervertebrales is stable.Like this intervertebral disc and vertebral body are carried out the anatomical reconstruction, both recovered the stability of cervical vertebra, recovered the mobility of articuli intervertebrales again, realized the relative displacement in active procedure between vertebral body, the coupled motions pattern in this joint reaches the effect of the motor pattern of the normal cervical vertebra of simulation.
Claims (6)
1. artificial cervical complex joint, it is characterized in that, this artificial cervical complex joint is made up of symmetrically arranged fixed part (1) and vertebral body parts (2) and two links (3) about in the of two, and vertebral body parts (2) are connected between the fixed part (1) by link (3);
Described fixed part (1) is divided into upper fixing element and following fixture, the shape of upper fixing element and following fixture is the L type, be divided into forward wing (6) and basilar part (4) on the fixture, wherein, the forward wing of upper fixing element (6) forms less than 90 ° of angles with its basilar part (4), and the forward wing of following fixture (6) forms greater than 90 ° of angles with its basilar part (4); Screw hole (5) is arranged on forward wing (6), in the middle of basilar part (4), be provided with the pawl shape anti-slip tank (8) of projection;
The middle part of described vertebral body parts (2) is provided with the bone grafting hole (21) of lateral direction penetrating, both sides up and down in vertebral body parts (2) axis centre are provided with the die cavity that is used for mounting and connection parts (3), and this die cavity comprises reentrant cylindrical cavity (16) and is positioned at the spherical surface hill (14) of cavity bottom center;
The shape of described link (3) is divided into column (12) and spherical structure (13), and spherical structure (13) comprises concave spherical surface (15), and concave spherical surface (15) matches with the spherical surface hill (14) of vertebral body component type intracavity;
Described vertebral body parts (2) both sides are respectively equipped with alignment pin lock hole (7), and retainer ring (9) is provided with retainer ring lock hole (10), by alignment pin retainer ring (9) are locked in the reentrant cylindrical cavity (16);
One end of link (3) is installed in the die cavity by retainer ring (9), and the other end is connected with fixed part (1), constitutes stable ball-and-socket chute joint.
2. artificial cervical complex joint as claimed in claim 1, it is characterized in that the relative motion mode between described fixed part (1) and the vertebral body parts (2) is spherical surface hill (14) slip of the spherical structure (13) of link (3) along vertebral body component type intracavity.
3. artificial cervical complex joint as claimed in claim 1, it is characterized in that, the spherical structure (13) of described link (3) is along spherical surface hill (14) rotation of vertebral body component type intracavity, produce the degrees of rotation of revolving of 0-14 degree between fixed part (1) and the vertebral body parts (2) in all directions, the column of link (12) is swing in the space between itself and the retainer ring (9), produce the displacement of 0-2mm between fixed part (1) and the vertebral body parts (2), form the coupled motions pattern in ball-and-socket chute joint.
4. artificial cervical complex joint as claimed in claim 1 is characterized in that, described concave spherical surface (15) is homocentric with described spherical surface hill (14).
5. artificial cervical complex joint as claimed in claim 1, it is characterized in that, the outlet diameter of described retainer ring (9) is than the big 2mm of column (12) diameter on the link (3), but retainer ring (9) inlet diameter is less than the length of the corresponding string of spherical structure section circular arc (20).
6. artificial cervical complex joint as claimed in claim 1 is characterized in that, described vertebral body parts (2) are rectangular structure, is coated with crude shape hydroxyapatite coating layer on its side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920034141XU CN201445571U (en) | 2009-08-06 | 2009-08-06 | Composite arthrosis of artificial cervical spine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920034141XU CN201445571U (en) | 2009-08-06 | 2009-08-06 | Composite arthrosis of artificial cervical spine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201445571U true CN201445571U (en) | 2010-05-05 |
Family
ID=42550281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920034141XU Expired - Lifetime CN201445571U (en) | 2009-08-06 | 2009-08-06 | Composite arthrosis of artificial cervical spine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201445571U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015031A1 (en) * | 2009-08-06 | 2011-02-10 | Lei Wei | Artificial cervical vertebra composite joint |
| CN102648879A (en) * | 2011-02-24 | 2012-08-29 | 四川大学华西医院 | Artificial intervertebral disc |
| US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
-
2009
- 2009-08-06 CN CN200920034141XU patent/CN201445571U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015031A1 (en) * | 2009-08-06 | 2011-02-10 | Lei Wei | Artificial cervical vertebra composite joint |
| US8613770B2 (en) | 2009-08-06 | 2013-12-24 | Wei Lei et al. | Artificial cervical vertebrae composite joint |
| CN102648879A (en) * | 2011-02-24 | 2012-08-29 | 四川大学华西医院 | Artificial intervertebral disc |
| US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| US10485672B2 (en) | 2011-03-20 | 2019-11-26 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| US11389301B2 (en) | 2011-03-20 | 2022-07-19 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101627931B (en) | Artificial cervical complex joint | |
| US11666450B2 (en) | Method for installing a stemless shoulder implant | |
| EP3482719B1 (en) | Sacrum repair device | |
| CN111031968A (en) | Perfected total shoulder joint prosthesis | |
| CN101019787B (en) | Physiological cervical vertebral reconstructing system | |
| JP2020503983A (en) | Modular augmentation components | |
| WO2021169746A1 (en) | 3d printed bionic artificial cervical intervertebral joint | |
| CN206651895U (en) | Acetabular bone fills block assembly and has its Hip System | |
| CN103702618A (en) | Combination reamer/drill bit for shoulder arthroplasty | |
| CN107049563B (en) | Intervertebral disc prosthesis | |
| CN105853031B (en) | A kind of bionical anti-artificial lumbar vertebrae of dislocation and interverbebral disc junctional complex | |
| CN201445571U (en) | Composite arthrosis of artificial cervical spine | |
| CN107049562B (en) | A kind of double acting joint cervical prosthesis | |
| CN202821726U (en) | Artificial intervertebral disc prosthesis | |
| CN203388966U (en) | Femoral component prosthesis for hip joint of human body | |
| CN201182659Y (en) | Structure for locking acetabular cup and inner lining in artificial hip joint system | |
| CN115227460A (en) | Variable-curvature unicondylar knee joint prosthesis and manufacturing method thereof | |
| CN110584838A (en) | Acetabular prosthesis | |
| CN102166140B (en) | High-simulation customized combined artificial vertebra | |
| CN201040015Y (en) | Artificial vertebrae cervicables composite joint device | |
| CN112043464A (en) | Acetabular prosthesis and hip prosthesis | |
| CN105078623A (en) | Biological self-locking artificial intervertebral disk system and application thereof | |
| CN201977964U (en) | Artificial intervertebral disc | |
| CN204971720U (en) | It is biological from artifical intervertebral disc system of lock | |
| CN101828979B (en) | Artificial cervical vertebral body and intervertebral disc composite body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100505 Effective date of abandoning: 20090806 |