CN202477905U - Thoracolumbar universal type intervertebral fusion device - Google Patents
Thoracolumbar universal type intervertebral fusion device Download PDFInfo
- Publication number
- CN202477905U CN202477905U CN2011204001575U CN201120400157U CN202477905U CN 202477905 U CN202477905 U CN 202477905U CN 2011204001575 U CN2011204001575 U CN 2011204001575U CN 201120400157 U CN201120400157 U CN 201120400157U CN 202477905 U CN202477905 U CN 202477905U
- Authority
- CN
- China
- Prior art keywords
- intervertebral fusion
- screw
- fusion plate
- locking
- intervertebral
- 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
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 87
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 16
- 210000000481 breast Anatomy 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 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 provides a thoracolumbar universal type intervertebral fusion device with a sideward admission passage, which comprises two integrally formed parts, namely an intervertebral fusion plate and a locking fixation screw. The integrally formed intervertebral fusion plate comprises an intervertebral fusion part provided with a bone grafting groove along the vertical axial direction of a vertebral column, and a locking part provided with a locking threaded hole on the sideward part of the vertebral column. The locking fixation screw is divided into a screw head part fixed into a vertebral body and provided with external threads, and a screw tail part locked and fixed to the intervertebral fusion plate and provided with external threads matched with the internal threads of the locking part. The locking part of the intervertebral fusion plate is provided with locking threaded holes in upper and lower axial directions, positioned at an included angle of 30 degrees with respect to the intervertebral part of the fusion plate and provided with tapered screw threads. The tapered screw threads are matched with the tapered external threads of the screw tail part of the locking fixation screw. The upper and lower surfaces of the intervertebral fusion part of the intervertebral fusion plate are provided with inverted teeth with forward tips. The intervertebral fusion part of the intervertebral fusion plate is provided with a left hollow bone grafting window and a right hollow bone grafting window.
Description
[technical field]
This utility model relates to a kind of bone surgery with specifically a kind of pegboard systems that is used for fixing and fusing between spinal vertebral of medical apparatus.
[background technology]
In recent years, the minimally invasive spine surgery is developed rapidly, also is widely used gradually as the direct intervertebral fusion technology in the side of one of its representative (DLIF).Make the spine corrective operation that in the past need cut tens of centimetres be able in 3～5 centimetres mini-incision, accomplish.Yet, as with the down operation of passages such as Minimally Invasive Surgery, particularly DLIF, the spinal fusion apparatus that matches is not developed accordingly, the restriction that this is bigger the development of minimally invasive spine surgery.With the DLIF operation is example, and at present, that in the DLIF operation, uses only has an Invasive lumbar fusion device; And present various Invasive lumbar fusion devices all do not have fixed function; Make that the stability of postoperative spinal column is also imprecise, often need the way of escape to add LOCATION OF PEDICLE SCREW FIXATION, make the meaning of Minimally Invasive Surgery have a greatly reduced quality.
[summary of the invention]
This utility model technical problem to be solved is the deficiency that overcomes above-mentioned prior art, the intervertebral fusion pegboard systems that provides a kind of side percutaneous to place.
The technical scheme that this utility model solves the problems of the technologies described above provides the universal intervertebral fusion device of a kind of breast lumbar vertebra, and it comprises intervertebral fusion plate, locking hold-down screw; Said intervertebral fusion plate is one-body molded with side locking part 12 with intervertebral fusion part 11; Side locking part surface is oblique puts screw 14 with 30 ° of angles of intervertebral fusion plate body folder; The built-in tapered screw thread of screw; It is characterized in that: said locking hold-down screw passes intervertebral fusion plate side locking part screw 14, and is fixed in the intervertebral fusion plate side locking part screw 14 through the tapered external screw thread 22 of locking hold-down screw tail end; Bone grafting groove 13 is put by said intervertebral fusion plate intervertebral fusion part 11 central authorities, and bone grafting groove central authorities cut off, and make it to become two independently bone grafting grooves, to increase the stability in the large of intervertebral fusion plate; Pawl design 15 is put on said intervertebral fusion plate intervertebral fusion part 11 surfaces, so that firm intervertebral fusion plate prevents that it is loosening; Said locking hold-down screw adopts the ailhead part 21 and the nail portion 22 that adopts the taper screw thread design of column screw thread design.This device is placed in the percutaneous side; Invasive lumbar fusion device placement and the fixed purpose of nail-plate are incorporated in once solution; It is main through Invasive lumbar fusion device and side locking steel plate is one-body molded; Form a complete intervertebral fusion plate, for solving the problem that the volume bring thus reduces, and the diagonal that the scheme that general side locking steel plate is put hold-down screw perpendicular to vertebral body changes oblique vertebral body into is squeezed into; And with this squeeze into fixed angle with 30 ° of angles of terminal plate of vertebral body folder, thereby guaranteed the length and the fix tightly solidity of hold-down screw.Thereby, exempt the operation of way of escape fixation of pedicle.
Said intervertebral fusion plate is one-body molded with intervertebral fusion part and side locking part, and side locking part surface is oblique puts screw, the built-in tapered screw thread of screw with 30 ° of angles of intervertebral fusion plate body folder.The locking hold-down screw passes intervertebral fusion plate side locking part screw, and is fixed in the intervertebral fusion plate side locking part screw through the tapered external screw thread of locking hold-down screw tail end.
The bone grafting groove is put by said intervertebral fusion plate intervertebral fusion part central authorities, and bone grafting groove central authorities cut off, and make it to become two independently bone grafting grooves, increasing the stability in the large of intervertebral fusion plate, and arrives through the operation bone grafting and to promote bone property fusion between vertebral body.
Said intervertebral fusion plate intervertebral fusion part surface is put the pawl design, so that firm intervertebral fusion plate prevents that it is loosening.
The nail portion of said locking hold-down screw adopts the taper screw thread design and is complementary with the taper female thread of said intervertebral fusion plate side locking part screw, so as to make its can secure lock on the intervertebral fusion plate.
The ailhead of said locking hold-down screw partly adopts the self tapping design.
This utility model has adopted integraty design, the intervertebral fusion of Invasive lumbar fusion device and fixing head partly to adopt pawl design etc., has avoided the displacement and the escape of Invasive lumbar fusion device, has increased stability.The hold-down screw of fixing head adopts oblique 30 ° of angles to fix, and make fixture in bone, form " del " and can't extract, and the fixing head edge exceeds intervertebral space; Stopped and to move forward by vertebral body; Thereby make this device be locked in " original position ", thereby, maximum stability had.The self tapping design of hold-down screw guarantees that the nail road can not become flexible.The locking design of nail tail fixedly becomes one hold-down screw and intervertebral fusion plate, thereby, maximum stability is provided.
[description of drawings]
Fig. 1 is this utility model intervertebral fusion plate front sketch.
Fig. 2 is this utility model intervertebral fusion plate simplified side view.
Fig. 3 is that this utility model intervertebral fusion plate design drawing is positive.
Fig. 4 is this utility model intervertebral fusion plate design drawing side.
Fig. 5 is this utility model locking nail norma lateralis.
Fig. 6 this utility model locking nail afterbody.
[specific embodiment]
Can find out that from Fig. 1-6 the universal intervertebral fusion device of the breast lumbar vertebra of this utility model comprises intervertebral fusion plate, locking hold-down screw; Said intervertebral fusion plate is one-body molded with side locking part 12 with intervertebral fusion part 11; Side locking part surface is oblique puts screw 14 with 30 ° of angles of intervertebral fusion plate body folder; The built-in tapered screw thread of screw; It is characterized in that: said locking hold-down screw passes intervertebral fusion plate side locking part screw 14, and is fixed in the intervertebral fusion plate side locking part screw 14 through the tapered external screw thread 22 of locking hold-down screw tail end.
The novel maximization that reaches fixing-stable through multiple design of this use.It does not destroy the spinal column rear structure, and the stability of spinal column keeps best.Small and exquisite body designs so that it accomplishes operation in the otch of Wicresoft, reaches minimizing of operation injury.So it is the good and practical widely new apparatus of a application prospect.
Claims (7)
1. the universal intervertebral fusion device of breast lumbar vertebra comprises intervertebral fusion plate, locking hold-down screw; Said intervertebral fusion plate is one-body molded with intervertebral fusion part (11) and side locking part (12); Side locking part surface is oblique puts screw (14) with 30 ° of angles of intervertebral fusion plate body folder; The built-in tapered screw thread of screw; It is characterized in that: said locking hold-down screw passes intervertebral fusion plate side locking part screw (14), and is fixed in the intervertebral fusion plate side locking part screw (14) through the tapered external screw thread (22) of locking hold-down screw tail end.
2. the universal intervertebral fusion device of breast lumbar vertebra according to claim 1; It is characterized in that: said intervertebral fusion plate intervertebral fusion partly (11) central authorities is put bone grafting groove (13); Bone grafting groove central authorities cut off, and make it to become two independently bone grafting grooves, to increase the stability in the large of intervertebral fusion plate.
3. the universal intervertebral fusion device of breast lumbar vertebra according to claim 1; It is characterized in that: said intervertebral fusion plate side locking part (12) surface is oblique puts screw (14) with 30 ° of angles of intervertebral fusion plate body folder; The built-in tapered screw thread of screw; Above-mentioned screw thread and the said locking hold-down screw nail tapered external screw thread of afterbody (22) are complementary, so that will lock the hold-down screw secure lock on the intervertebral fusion plate.
4. the universal intervertebral fusion device of breast lumbar vertebra according to claim 1 is characterized in that: said locking hold-down screw adopts the ailhead part (21) of column screw thread design and adopts the nail portion (22) of taper screw thread design.
5. the universal intervertebral fusion device of breast lumbar vertebra according to claim 1; It is characterized in that: the nail portion (22) of said locking hold-down screw adopts the taper screw thread design and is complementary with the taper female thread of said intervertebral fusion plate side locking part (12) screw (14), so as to make its can secure lock on the intervertebral fusion plate.
6. the universal intervertebral fusion device of breast lumbar vertebra according to claim 1 is characterized in that: pawl design (15) is put on said intervertebral fusion plate intervertebral fusion part (11) surface, so that firm intervertebral fusion plate prevents that it is loosening.
7. the universal intervertebral fusion device of breast lumbar vertebra according to claim 1 is characterized in that: the ailhead part (21) of said locking hold-down screw adopts the self tapping design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204001575U CN202477905U (en) | 2011-10-20 | 2011-10-20 | Thoracolumbar universal type intervertebral fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204001575U CN202477905U (en) | 2011-10-20 | 2011-10-20 | Thoracolumbar universal type intervertebral fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202477905U true CN202477905U (en) | 2012-10-10 |
Family
ID=46952371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204001575U Expired - Fee Related CN202477905U (en) | 2011-10-20 | 2011-10-20 | Thoracolumbar universal type intervertebral fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202477905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8940030B1 (en) | 2011-01-28 | 2015-01-27 | Nuvasive, Inc. | Spinal fixation system and related methods |
| CN111839835A (en) * | 2020-08-31 | 2020-10-30 | 四川大学华西医院 | Lateral Anterior Approach Vertebral Body Reconstruction Interbody Fusion Fixator |
-
2011
- 2011-10-20 CN CN2011204001575U patent/CN202477905U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8940030B1 (en) | 2011-01-28 | 2015-01-27 | Nuvasive, Inc. | Spinal fixation system and related methods |
| US9913730B1 (en) | 2011-01-28 | 2018-03-13 | Nuvasive, Inc. | Spinal fixation system and related methods |
| CN111839835A (en) * | 2020-08-31 | 2020-10-30 | 四川大学华西医院 | Lateral Anterior Approach Vertebral Body Reconstruction Interbody Fusion Fixator |
| CN111839835B (en) * | 2020-08-31 | 2022-04-12 | 四川大学华西医院 | Intervertebral fusion fixer for lateral anterior approach vertebral body reconstruction |
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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: 20121010 Termination date: 20131020 |