CN201492544U - Clip-type anti-slip dynamic spine fusion device - Google Patents
Clip-type anti-slip dynamic spine fusion device Download PDFInfo
- Publication number
- CN201492544U CN201492544U CN2009200726268U CN200920072626U CN201492544U CN 201492544 U CN201492544 U CN 201492544U CN 2009200726268 U CN2009200726268 U CN 2009200726268U CN 200920072626 U CN200920072626 U CN 200920072626U CN 201492544 U CN201492544 U CN 201492544U
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- China
- Prior art keywords
- fusion device
- slip
- lumbar fusion
- invasive lumbar
- clip
- 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 - Fee Related
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- 230000004927 fusion Effects 0.000 title claims abstract description 61
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 27
- 230000006378 damage Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 210000000115 thoracic cavity Anatomy 0.000 abstract description 3
- 238000002513 implantation Methods 0.000 abstract description 2
- 208000007623 Lordosis Diseases 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007943 implant Substances 0.000 description 6
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 2
- 208000036319 cervical spondylosis Diseases 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 208000005801 spondylosis Diseases 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 208000018650 Intervertebral disc disease Diseases 0.000 description 1
- 206010058046 Post procedural complication Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 208000012287 Prolapse Diseases 0.000 description 1
- 208000020307 Spinal disease Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 210000001032 spinal nerve Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
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
Landscapes
- 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
The utility model relates to the field of medical appliances, in particular to a clip-type anti-slip dynamic spine fusion device which is characterized by mainly comprising an upper support body, a lower support body and a spring. Under normal circumstances, the heads of the two support bodies are closed, the front and the rear height of the whole spine fusion device is consistent, thereby the damage to small joints and endplates upon implantation is reduced; when the tails of the support bodies are pressed, the heads can be separated, the separation angle is 0 degree to 45 degrees, thereby ensuring that the upper and the lower spine can be closely integrated when the clip-type anti-slip dynamic spine fusion device is implanted no matter the front part or the rear part are pressed, keeping the spine height and the lordosis, and preventing slip. The anti-slip teeth on the support bodies enhance the anti-slip performance of the clip-type anti-slip dynamic spine fusion device, and the large-diameter fusion pores facilitate the stuffing of bone grafting material and the promotion of spine bone fusion. The clip-type anti-slip dynamic spine fusion device is widely applicable to the anterior or the posterior approach reconstruction operation of cervical, thoracic vertebra and lumbar.
Description
Technical field
This utility model relates to medical instruments field, specifically is the anti-slip Invasive lumbar fusion device of a kind of folder formula.
Background technology
The degeneration of spinal column, inflammation, to injure deformity etc. outward be the main cause that causes unstable spine, cervical spondylosis, lumbar disc disease.At present, be the intervertebral fusion art for need the undergo surgery method often taked of patient of treatment of those unstable spines.From the forties in 20th century, begin to use spinal diseases such as Invasive lumbar fusion device treatment cervical spondylosis and prolapse of lumbar intervertebral disc abroad.Subsequently, various Invasive lumbar fusion devices occur in succession.The advantage of existing Invasive lumbar fusion device is and can provides at once stability for spinal column; Recover intervertebral height; Putting into bone grafting or other biological active substance can promote the vertebral body bone to merge.But clinical practice finds that also there are many shortcomings in Invasive lumbar fusion device: though Invasive lumbar fusion device commonly used has the branch of size, size and form all are fixed, can not adjust at different patients' concrete condition.Again because there is 5～10 ° inclination in the vertebral body surface, anterior and posterior height is inconsistent between vertebral body, preceding high back is low, the Invasive lumbar fusion device of implanting is difficult to be close to upper and lower vertebral body, postoperative may occur that Invasive lumbar fusion device skids off forward or landing backward, cause spinal nerves pressurized or adjacent tissue visceral organ injury, merge complication, finally cause operative failure.
Summary of the invention
For overcome the sliding phenomenon that existing Invasive lumbar fusion device may occur after implantation and when reducing to implant to the destruction of little joint and soleplate, make the applying of Invasive lumbar fusion device and upper and lower vertebral body tightr, this utility model provides a kind of folder formula to prevent the slip Invasive lumbar fusion device.The anti-slip Invasive lumbar fusion device of this folder formula can be close to upper and lower vertebral body when recovering intervertebral height at once, recover the physiology curvature of vertebra internode to greatest extent, prevent that Invasive lumbar fusion device from sliding between vertebral body, again because the anti-slip Invasive lumbar fusion device of this folder formula adopts the streamlined design of anterior and posterior height unanimity, when having reduced to implant to the destruction of little joint and soleplate, promote the vertebral body bone to merge, reduced post-operative complication.
The anti-slip Invasive lumbar fusion device of a kind of folder formula provided by the utility model mainly is made up of upper and lower supporter and spring.Upper and lower supporter outward appearance is identical and symmetrical.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity; Under supporter afterbody pressurized situation, head can strut, and different according to stressed size and stress point, and the angle that struts is also different, 0～45 ° of angular range.The anti-front or rear pressurized of slip Invasive lumbar fusion device all can fit tightly with upper and lower vertebral body no matter this design has guaranteed the folder formula, has kept intervertebral height, anti-sliding stop.Also be distributed with skid-resistant anti-slop serrations and the bone grafting hole that is used for bone grafting on the supporter, anti-slop serrations has been strengthened the non-skid property of the anti-slip Invasive lumbar fusion device of folder formula, and the bone grafting hole helps clogging bone-grafting material, promotes the vertebral body bone to merge.The anti-slip Invasive lumbar fusion device of this utility model folder formula is applicable to the anterior lateral cervical approach or the rear approach reconstruction operations of cervical vertebra, thoracic vertebra, lumbar vertebra.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.Accompanying drawing and explanation only are used for helping understanding of the present utility model, and the ratio of each ingredient is an illustrative nature among the figure, can not be considered as restriction of the present utility model.
Fig. 1 struts the anti-slip Invasive lumbar fusion device schematic side view of fore-clamp formula
Fig. 2 struts the anti-slip Invasive lumbar fusion device schematic side view of back clipping type
A kind of folder formula of Fig. 3 is prevented slip Invasive lumbar fusion device 3 D stereo sketch map
The anti-slip Invasive lumbar fusion device 3 D stereo sketch map of the another kind of folder formula of Fig. 4
The anti-thin portion of slip Invasive lumbar fusion device spring of Fig. 5 folder formula sketch map
Design sketch behind the anti-slip Invasive lumbar fusion device of Fig. 6 anterior lateral cervical approach implant clip formula
Design sketch behind the anti-slip Invasive lumbar fusion device of Fig. 7 rear approach implant clip formula
Symbol description among the figure:
1 folder formula is prevented the slip Invasive lumbar fusion device, 11 anti-slop serrations, 12 afterbodys, 13 heads, 14 springs, 15 supporters, 16 bone grafting holes, 17 bone graft area, vertebral body on 21,22 hypocentrums.
The specific embodiment
Below in conjunction with embodiment, the anti-slip Invasive lumbar fusion device of this utility model folder formula is described in detail.It should be understood that embodiment of the present utility model is used to illustrate this utility model rather than to restriction of the present utility model.
Embodiment 1
Form and the each several part ratio:
20 millimeters of total lengths
Long 8 millimeters of afterbody
10 millimeters of total heights
1 of bone grafting hole number (symmetry up and down)
2 millimeters of anti-slop serrations height
The anti-slip Invasive lumbar fusion device of folder formula mainly is made up of two supporters and spring, and outward appearance is streamlined.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity.Under supporter afterbody pressurized situation, head can freely strut, and different according to stressed size and stress point, and the angle that struts is also different, 0～45 ° of angular range.Be distributed with sawtooth pattern anti-slop serrations and an oval bone grafting hole on the supporter.
Embodiment 2
Form and the each several part ratio:
35 millimeters of total lengths
Long 20 millimeters of afterbody
20 millimeters of total heights
2 of bone grafting hole numbers (symmetry up and down)
4 millimeters of anti-slop serrations height
The anti-slip Invasive lumbar fusion device of folder formula mainly is made up of two supporters and spring, and outward appearance is streamlined.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity.Under supporter afterbody pressurized situation, head can freely strut, and different according to stressed size and stress point, and the angle that struts is also different, 0～45 ° of angular range.Be distributed with inverted pyramid shape anti-slop serrations and two square bone grafting holes on the supporter.
Embodiment 3
Form and the each several part ratio:
6 millimeters of total lengths
Long 3 millimeters of afterbody
5 millimeters of total heights
1 of bone grafting hole number (symmetry up and down)
0.4 millimeter of anti-slop serrations height
The anti-slip Invasive lumbar fusion device of folder formula mainly is made up of two supporters and spring, and outward appearance is streamlined.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity.Under supporter afterbody pressurized situation, head can freely strut, and different according to stressed size and stress point, and the angle that struts is also different, 0～45 ° of angular range.Be distributed with zigzag anti-slop serrations and a circular bone grafting hole on the supporter.
Embodiment 4
Form and the each several part ratio:
15 millimeters of total lengths
Long 6 millimeters of afterbody
12 millimeters of total heights
1 of bone grafting hole number (symmetry up and down)
1.5 millimeters of anti-slop serrations height
The anti-slip Invasive lumbar fusion device of folder formula mainly is made up of two supporters and spring, and outward appearance is streamlined.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity.Under supporter afterbody pressurized situation, head can freely strut, and different according to stressed size and stress point, and the angle that struts is also different, 0～45 ° of angular range.Be distributed with inverted pyramid shape anti-slop serrations and a square bone grafting hole on the supporter.
Embodiment 5
Form and the each several part ratio:
25 millimeters of total lengths
Long 10 millimeters of afterbody
15 millimeters of total heights
2 of bone grafting hole numbers (symmetry up and down)
1.5 millimeters of anti-slop serrations height
The anti-slip Invasive lumbar fusion device of folder formula mainly is made up of two supporters and spring, and outward appearance is streamlined.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity.Under supporter afterbody pressurized situation, head can freely strut, and different according to stressed size and stress point, and the angle that struts is also different, 0～45 ° of angular range.Be distributed with zigzag anti-slop serrations and two oval bone grafting holes on the supporter.
This utility model provides the anti-slip Invasive lumbar fusion device of a kind of folder formula mainly to be made up of upper and lower supporter and spring.Upper and lower supporter outward appearance is identical and symmetrical.Two supporter heads are closure state under normal conditions, and whole folder formula is prevented slip Invasive lumbar fusion device anterior and posterior height unanimity, in the time of reducing to implant to the destruction of little joint and soleplate; Under supporter afterbody pressurized situation, head can strut, and different according to stressed size and stress point, the angle that struts is also different, angular range is at 0～45 °, implant the front or rear pressurized in back and all can fit tightly no matter guaranteed the anti-slip Invasive lumbar fusion device of folder formula, kept intervertebral height and physiology curvature, anti-sliding stop with upper and lower vertebral body.Anti-slop serrations on the supporter has been strengthened the non-skid property of the anti-slip Invasive lumbar fusion device of folder formula, and wide-aperture bone grafting hole helps clogging bone-grafting material, promotes the vertebral body bone to merge.Fig. 6 and Fig. 7 have shown the effect after vertebral body is implanted on the forward and backward road of the anti-slip Invasive lumbar fusion device of this utility model folder formula respectively.The anti-slip Invasive lumbar fusion device of this utility model folder formula is applicable to the anterior lateral cervical approach or the rear approach reconstruction operations of cervical vertebra, thoracic vertebra, lumbar vertebra.
Claims (4)
1. the anti-slip Invasive lumbar fusion device of folder formula is characterized in that being made up of two supporters and spring, and it is streamlined that outward appearance is, after the supporter afterbody is stressed, head can strut, and 0～45 ° of the angular range that struts is distributed with skid-resistant anti-slop serrations and the bone grafting hole that is used for bone grafting on the supporter.
2. folder formula according to claim 1 is prevented the slip Invasive lumbar fusion device, it is characterized in that: the folder formula is prevented the identical and complete symmetry of the upper and lower supporter outward appearance of slip Invasive lumbar fusion device.
3. folder formula according to claim 1 is prevented the slip Invasive lumbar fusion device, it is characterized in that: the bone grafting hole on the anti-slip Invasive lumbar fusion device supporter of folder formula is symmetry up and down, and quantity can be 1 or 2, and the shape in bone grafting hole can be circular, oval or square.
4. folder formula according to claim 1 is prevented the slip Invasive lumbar fusion device, it is characterized in that: the shape of anti-slop serrations can be zigzag or inverted pyramid shape on the anti-slip Invasive lumbar fusion device supporter of folder formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200726268U CN201492544U (en) | 2009-05-21 | 2009-05-21 | Clip-type anti-slip dynamic spine fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200726268U CN201492544U (en) | 2009-05-21 | 2009-05-21 | Clip-type anti-slip dynamic spine fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201492544U true CN201492544U (en) | 2010-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200726268U Expired - Fee Related CN201492544U (en) | 2009-05-21 | 2009-05-21 | Clip-type anti-slip dynamic spine fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201492544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662565A (en) * | 2016-03-29 | 2016-06-15 | 苏州点合医疗科技有限公司 | X-axis and Y-axis bidirectional expansion type intervertebral support device |
| CN107669374A (en) * | 2017-10-26 | 2018-02-09 | 北京爱康宜诚医疗器材有限公司 | Centrum prosthese |
| CN109953841A (en) * | 2019-04-10 | 2019-07-02 | 上海交通大学医学院附属第九人民医院 | A construction method of a personalized porous interbody cage |
-
2009
- 2009-05-21 CN CN2009200726268U patent/CN201492544U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662565A (en) * | 2016-03-29 | 2016-06-15 | 苏州点合医疗科技有限公司 | X-axis and Y-axis bidirectional expansion type intervertebral support device |
| CN105662565B (en) * | 2016-03-29 | 2018-03-02 | 苏州点合医疗科技有限公司 | Support meanss between the two-way expansion type vertebra of a kind of X-axis, Y-axis |
| CN107669374A (en) * | 2017-10-26 | 2018-02-09 | 北京爱康宜诚医疗器材有限公司 | Centrum prosthese |
| CN109953841A (en) * | 2019-04-10 | 2019-07-02 | 上海交通大学医学院附属第九人民医院 | A construction method of a personalized porous interbody cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20130521 |