CN105496613A - Cervical vertebra crossover intervertebral height maintainer - Google Patents
Cervical vertebra crossover intervertebral height maintainer Download PDFInfo
- Publication number
- CN105496613A CN105496613A CN201511004687.7A CN201511004687A CN105496613A CN 105496613 A CN105496613 A CN 105496613A CN 201511004687 A CN201511004687 A CN 201511004687A CN 105496613 A CN105496613 A CN 105496613A
- Authority
- CN
- China
- Prior art keywords
- soleplate
- end plate
- cervical vertebra
- intervertebral
- passage
- 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.)
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Classifications
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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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
-
- 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
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
- A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
- A61F2310/00293—Ceramics or ceramic-like structures containing a phosphorus-containing compound, e.g. apatite
Abstract
The invention discloses a cervical vertebra crossover intervertebral height maintainer, and belongs to the field of medical apparatuses and instruments. The maintainer comprises an upper end plate, a lower end plate and a pin shaft. The upper end plate and the lower end plate are overlapped, and one end of the upper end plate and one end of the lower end plate are connected through the pin shaft. Channels are arranged in the upper end plate and the lower end plate. The upper surface and the side face of the upper end plate are communicated through the channel of the upper end plate. The lower surface and the side face of the lower end plate are communicated through the channel of the lower end plate. The crossover design concept is innovatively put forward, the fusion and replacement concept integrated design is achieved for the maintainer, and the maintainer integrates the advantages of the movement maintenance and instant excellent stability of artificial cervical intervertebral prothesis and the height maintenance, high long-term stability and cervical curvature improvement and maintenance of an interbody fusion cage; by means of the design elements of intervertebral zero incisura, the defects of replacement and fusion are overcome to a large extent, patients suffering adaption diseases are expanded more obviously, and extremely-high practicability is achieved.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of cervical vertebra intervertebral height retainer transboundary.
Background technology
Artificial cervical disc replacement is the new technique that 20 th century later occur, after the discectomy of Shi Qian road by insert at intervertebral space one can be movable device, replace original intervertebral disc and exercise its function, realizing the object retaining motion segment, secondary degeneration appears in minimizing adjacent segment.Before this, traditional operation of spondylosis Therapeutic Method is: by the discectomy of pathological changes, then bone grafting between upper and lower vertebral body, the space stayed, impels upper and lower vertebral body to merge completely after filling up discectomy simultaneously, reaches the object for the treatment of.But found by the research of clinical effectiveness: after anterior stabilization, the sections adjacent with Fusion levels can produce secondary degeneration and instability, cause original symptom recur or increase the weight of, become the key factor affecting result of anterior route cervical spondylosis late result.Because post-fusion sections obtains the stable of a kind of non-physiological state, lose corresponding motion segment, cause cervical vertebra total range of motion to reduce, Adjacent segment degeneration is accelerated, the fusion even needing to accept again adjacent segment had.Cervical vertebral space fusion (ACDF) is art formula classical in anterior cervical operation, and early stage ACDF operation uses intervertebral to implant iliac/artificial material bone grafting, and the mode of upper hypocentrum front steel plate screw is fixed.In recent years, ACDF internal fixation device has developed into the internal fixtion pattern of intervertebral macromolecular material+bone grafting+screw, i.e. the internal fixation system of zero incisura.Effectively can reduce the sense of discomfort of soft tissue before vertebra.But the Shortcomings of ACDF operation own, after mainly merging cervical vertebral segment mobility forfeiture and close on intervertebral disc degeneration and accelerate two faces, room.
Existing cervical intervertebral disc system is a kind of special device can simulating normal human subject intervertebral disc of cervical vertebra.When people suffer from the reason such as cervical spondylosis or acute cervical vertebra intervertebral disc prolapse need operative treatment time; the intervertebral disc of pathological changes is by cut; then artificial intervertebral disk is implanted the position of original intervertebral disc to replace original intervertebral disc and to exercise its function, can realize retaining motion segment, reducing the object occurring adjacent segment secondary degeneration.The current whole world all can realize the activity of permissible substitution sections for the design principle of clinical cervical artificial disc system, and maintains stable target in various degree.But the reason such as patients with cervical degree of degeneration differs and patient's operation judges standard is different, cervical vertebra can be there is after making cervical artificial disc replacement and occur that segmental is instead bent, the complication such as sections limitation of activity or sections hyperkinesia, affect patient's postoperative curative effect, severe patient may occur that segmental height is obviously lost, there is new clinical symptoms, even may increase the weight of to close on sections cervical spine degeneration simultaneously.
Summary of the invention
Novelty of the present invention proposes mentality of designing transboundary, artificial intervertebral's height retainer is made to achieve fusion, displacement two theory integrated designs, motion reservation, the Initial stability of designed intervertebral height retainer collection cervical artificial disc are excellent, the height maintenance of Invasive lumbar fusion device, good stability at a specified future date, can improve and the advantage maintaining cervical curvature, have employed again the design element of intervertebral zero incisura, the deficiency avoid displacement largely, merging, expand eligible patients group more significantly, there is high practicality.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of cervical vertebra disclosed by the invention intervertebral height retainer transboundary, comprise soleplate, lower soleplate, bearing pin, described upper soleplate is overlapping up and down with lower soleplate, pinned connection is passed through in upper soleplate and lower soleplate one end, in described upper soleplate and lower soleplate, passage is set, the passage of upper soleplate runs through upper surface and the side of soleplate, and the passage of lower soleplate runs through lower surface and the side of lower soleplate.
Preferably, the upper surface of described upper soleplate and the lower surface of lower soleplate are outwardly arc, and are equipped with sharp ridge.
Preferably, the sharp ridge of described upper soleplate and lower soleplate respectively has six, and six sharp ridges are uniformly distributed.
Further, the passage of described upper soleplate has five at the opening of upper surface, and five openings are uniformly distributed, and the passage of described lower soleplate has five at the opening of lower surface, and five openings are uniformly distributed.
Further, the passage of described upper soleplate is positioned at the one end away from bearing pin at the opening of side, and the passage of described lower soleplate is positioned at the one end away from bearing pin at the opening of side.
Preferably, described channel diameter is 2mm.
Preferably, described bearing pin is titanium alloy bearing pin.
Further, described upper soleplate and lower soleplate and pinned connection place to nearest edge arrange and limit the inclined-plane that soleplate and lower soleplate open up into maximum 11 ° of angles.
Preferably, the upper surface of described upper soleplate and the lower surface of lower soleplate are equipped with hydroxyapatite coating layer.
The present invention has following beneficial effect:
1. the present invention can maintain intervertebral height;
2. the design of arc and sharp ridge is stablized after the present invention is inserted at once, and sharp ridge design also facilitates the effect of zero incisura;
3. the design of passage, hemorrhage between abundant drain soleplate, also can be used for adding non-solid material simultaneously, promote hone lamella interface healing;
4. can not there is the attitude that upper and lower plates front closes, rear is opened in the design's prosthese, therefore there is not the anti-possibility of bending of operated level;
5. the design on titanium alloy bearing pin and inclined-plane fully allows rear hade degree;
6. hydroxyapatite coating layer, promotes that bone-board interface bone merges.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2;
In figure: soleplate, 3-passage, 4-point ridge, 5-bearing pin, 6-inclined-plane under the upper soleplate of 1-, 2-.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As Figure 1-3, the present invention includes soleplate 1, lower soleplate 2, bearing pin 5, upper soleplate 1 is overlapping with lower soleplate about 2, upper soleplate 1 is connected by bearing pin 5 with lower soleplate 2 one end, in upper soleplate 1 and lower soleplate 2, passage 3 is set, the passage 3 of upper soleplate 1 runs through upper surface and the side of soleplate 1, the passage 3 of lower soleplate 2 runs through lower surface and the side of lower soleplate 2, the upper surface of upper soleplate 1 and the lower surface of lower soleplate 2 are outwardly arc, two curved surfaces are respectively provided with six sharp ridges 4, six sharp ridges 4 are uniformly distributed in its surface, place, the passage 3 of upper soleplate 1 has five at the opening of upper surface, five openings are uniformly distributed, the passage 3 of lower soleplate 2 has five at the opening of lower surface, five openings are uniformly distributed, the passage 3 of upper soleplate 1 is positioned at the one end away from bearing pin 5 at the opening of side, the passage 3 of lower soleplate 2 is positioned at the one end away from bearing pin 5 at the opening of side, passage 3 diameter is 2mm, bearing pin 5 is titanium alloy bearing pin, upper soleplate 1 and lower soleplate 2 and bearing pin 5 junction to nearest edge arrange and limits the inclined-plane 6 that soleplate 1 and lower soleplate 2 open up into maximum 11 ° of angles, the upper surface of upper soleplate 1 and the lower surface of lower soleplate 2 are equipped with hydroxyapatite coating layer.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (9)
1. cervical vertebra intervertebral height retainer transboundary, it is characterized in that: comprise soleplate, lower soleplate, bearing pin, described upper soleplate is overlapping up and down with lower soleplate, pinned connection is passed through in upper soleplate and lower soleplate one end, in described upper soleplate and lower soleplate, passage is set, the passage of upper soleplate runs through upper surface and the side of soleplate, and the passage of lower soleplate runs through lower surface and the side of lower soleplate.
2. cervical vertebra according to claim 1 intervertebral height retainer transboundary, is characterized in that: the upper surface of described upper soleplate and the lower surface of lower soleplate are outwardly arc, and are equipped with sharp ridge.
3. cervical vertebra according to claim 2 intervertebral height retainer transboundary, it is characterized in that: the sharp ridge of described upper soleplate and lower soleplate respectively has six, six sharp ridges are uniformly distributed.
4. cervical vertebra according to claim 1 intervertebral height retainer transboundary, it is characterized in that: the passage of described upper soleplate has five at the opening of upper surface, five openings are uniformly distributed, and the passage of described lower soleplate has five at the opening of lower surface, and five openings are uniformly distributed.
5. cervical vertebra according to claim 4 intervertebral height retainer transboundary, is characterized in that: the passage of described upper soleplate is positioned at the one end away from bearing pin at the opening of side, and the passage of described lower soleplate is positioned at the one end away from bearing pin at the opening of side.
6. the cervical vertebra according to claim 1-5 any one is intervertebral height retainer transboundary, it is characterized in that: described channel diameter is 2mm.
7. cervical vertebra according to claim 1 intervertebral height retainer transboundary, is characterized in that: described bearing pin is titanium alloy bearing pin.
8. the cervical vertebra according to claim 1 or 7 is intervertebral height retainer transboundary, it is characterized in that: described upper soleplate and lower soleplate and pinned connection place to nearest edge arrange and limit the inclined-plane that soleplate and lower soleplate open up into maximum 11 ° of angles.
9. cervical vertebra according to claim 1 intervertebral height retainer transboundary, is characterized in that: the upper surface of described upper soleplate and the lower surface of lower soleplate are equipped with hydroxyapatite coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004687.7A CN105496613B (en) | 2015-12-29 | 2015-12-29 | Cervical vertebra transboundary intervertebral height maintainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004687.7A CN105496613B (en) | 2015-12-29 | 2015-12-29 | Cervical vertebra transboundary intervertebral height maintainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105496613A true CN105496613A (en) | 2016-04-20 |
| CN105496613B CN105496613B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511004687.7A Active CN105496613B (en) | 2015-12-29 | 2015-12-29 | Cervical vertebra transboundary intervertebral height maintainer |
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| Country | Link |
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| CN (1) | CN105496613B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888056A (en) * | 2020-08-05 | 2020-11-06 | 四川大学华西医院 | Vertebral body X-shaped excision decompression vertebral body shaping intervertebral fusion fixator |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4759769A (en) * | 1987-02-12 | 1988-07-26 | Health & Research Services Inc. | Artificial spinal disc |
| US20060259037A1 (en) * | 2003-10-30 | 2006-11-16 | Stephan Hartmann | Intervertebral implant |
| US20100049324A1 (en) * | 2008-08-21 | 2010-02-25 | Antonio Valdevit | Expandable interbody fusion cage with rotational insert |
| CN202568533U (en) * | 2012-04-05 | 2012-12-05 | 田纪伟 | Adjustable lumbar interbody fusion device |
| CN104042366A (en) * | 2013-03-15 | 2014-09-17 | 扩张整形外科公司 | Expandable Orthopedic Devices |
| CN203885668U (en) * | 2013-10-23 | 2014-10-22 | 李振宇 | In-vivo formation dropping-preventing biological form intervertebral manual elastic nucleus pulposus |
| CN104224410A (en) * | 2014-09-25 | 2014-12-24 | 四川大学华西医院 | Intervertebral disc prosthesis shock absorption structure |
| CN204306881U (en) * | 2014-12-01 | 2015-05-06 | 薛文 | A kind of memory alloy interbody fusion cage |
| CN204698761U (en) * | 2015-05-18 | 2015-10-14 | 无锡市人民医院 | A kind of Invasive lumbar fusion device |
| CN205434004U (en) * | 2015-12-29 | 2016-08-10 | 四川大学华西医院 | Ware is maintain to cervical vertebra transboundary intervertebral height |
-
2015
- 2015-12-29 CN CN201511004687.7A patent/CN105496613B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4759769A (en) * | 1987-02-12 | 1988-07-26 | Health & Research Services Inc. | Artificial spinal disc |
| US20060259037A1 (en) * | 2003-10-30 | 2006-11-16 | Stephan Hartmann | Intervertebral implant |
| US20100049324A1 (en) * | 2008-08-21 | 2010-02-25 | Antonio Valdevit | Expandable interbody fusion cage with rotational insert |
| CN202568533U (en) * | 2012-04-05 | 2012-12-05 | 田纪伟 | Adjustable lumbar interbody fusion device |
| CN104042366A (en) * | 2013-03-15 | 2014-09-17 | 扩张整形外科公司 | Expandable Orthopedic Devices |
| CN203885668U (en) * | 2013-10-23 | 2014-10-22 | 李振宇 | In-vivo formation dropping-preventing biological form intervertebral manual elastic nucleus pulposus |
| CN104224410A (en) * | 2014-09-25 | 2014-12-24 | 四川大学华西医院 | Intervertebral disc prosthesis shock absorption structure |
| CN204306881U (en) * | 2014-12-01 | 2015-05-06 | 薛文 | A kind of memory alloy interbody fusion cage |
| CN204698761U (en) * | 2015-05-18 | 2015-10-14 | 无锡市人民医院 | A kind of Invasive lumbar fusion device |
| CN205434004U (en) * | 2015-12-29 | 2016-08-10 | 四川大学华西医院 | Ware is maintain to cervical vertebra transboundary intervertebral height |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888056A (en) * | 2020-08-05 | 2020-11-06 | 四川大学华西医院 | Vertebral body X-shaped excision decompression vertebral body shaping intervertebral fusion fixator |
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| Publication number | Publication date |
|---|---|
| CN105496613B (en) | 2017-08-29 |
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