CN1214769C - Self -fixing type artificial vertebral body and mounting tool thereof - Google Patents
Self -fixing type artificial vertebral body and mounting tool thereof Download PDFInfo
- Publication number
- CN1214769C CN1214769C CN 03134429 CN03134429A CN1214769C CN 1214769 C CN1214769 C CN 1214769C CN 03134429 CN03134429 CN 03134429 CN 03134429 A CN03134429 A CN 03134429A CN 1214769 C CN1214769 C CN 1214769C
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- China
- Prior art keywords
- vertebral body
- self
- type artificial
- fixing type
- artificial vertebral
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- 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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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
-
- 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
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- 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 present invention relates to a self-fixing type artificial vertebral body and installation tools thereof. A middle sleeve, two side sleeves, and two end sleeve terminal plates are assembled to form the self-fixing type artificial vertebral body. The integral structure of the self-fixing type artificial vertebral body is symmetrical up and down, the interior of the self-fixing type artificial vertebral body is hollow, and the length of the self-fixing type artificial vertebral body is adjustable. The middle of the self-fixing type artificial vertebral body is bent a certain angle to ensure a physiological curve of a vertebral column. The present invention comprises three installation tools of a manual trepanation, an arc spanner, a sighting device, etc. When the self-fixing type artificial vertebral body is embedded into a human body, ratchet pawls of the end sleeve terminal plates are penetrated into an upper vertebral body and a lower vertebral body, the side sleeves are rotated, and the ratchet pawls are tapped into the upper vertebral body and the lower vertebral body by tapping threads. The upper vertebral body and the lower vertebral body are fixed by transverse locking pins. Inner fixers for vertebral columns do not need to be artificially used in a combined mode, and damage to circumferential tissue is lightened. The present invention is mainly suitable for a case whose diseased vertebra is widely ablated due to the blowout fracture or the bone tumour of chest and lumbar vertebrae.
Description
Technical field
The present invention relates to the artificial vertebral body of medical industry, particularly a kind of from fixed artificial vertebral body.
Background technology
Breast lumbar vertebra bursting fracture or bone tumor etc. cause disease vertebra wide excision to cause that human spine's bulk bone is damaged, and displacement of normal both at home and abroad employing artificial vertebral body and inner bone-graft fusion are come filling bone defects, rebuild spinal stability at present.Artificial vertebral body need be united the use spinal column internal fixation device in use mostly in clinical, with enhanced stability, but also caused a series of problems: 1) artificial vertebral body is fixing by the compression of spinal column internal fixation device pretension, this fixed form that is press-fitted can temporarily play stable purpose, but the use of internal fixation of spine apparatus can only be fixed on a side, and is of long duration, and the spinal column physiological bending can be affected, in case pretightning force disappears, artificial vertebral body is easy to loosening or displacement; 2) use of spinal column internal fixation device can make operating difficulty and wound strengthen undoubtedly, and it is bulky, has limited the active space of spinal column, the more important thing is that the activity of spinal column can cause its damage and compression to peripheral vessels, nervous tissue, easily leads to complications.
Summary of the invention
The object of the present invention is to provide and a kind ofly after artificial vertebral body is implanted, need not associating use spinal column internal fixation device, can play the effect of held stationary equally, and the normal height of efficient recovery spinal column can be arranged and lose physiological curve on the shape face, realize its steady in a long-term merge from fixed artificial vertebral body.
Another object of the present invention is to provide a kind of patent instrument from fixed artificial vertebral body.
For achieving the above object, the present invention comprises from fixed artificial vertebral body: crooked middle cover and be separately positioned in overlap the end cage plate at two ends, be characterized in, put between the cage plate of two ends and also be provided with the both sides cover, the limit cover is provided with tapping screw thread and locking nail hole with the end that the end cage plate links to each other, and the other end of limit cover is respectively arranged with locating hole and draw-in groove; In between cover and the limit cover by being threaded, and the inside of middle cover is a cavity structure, there are 6～12 angle of bend of spending at the middle part of middle cover according to human spine's physiological bending; The end cage plate overlaps by being threaded with the limit, and the outline of end cage plate is a waist shape structure, and the outer face of end cage plate is provided with jag spike.
The manual jumping through rings that the present invention installs from fixed artificial vertebral body comprises handle, is characterized in, is provided with and the vertical zigzag annular bit of handle at the leading section of handle, and the diameter of annular bit overlaps with the limit and equates.The arc spanner that the present invention installs from fixed artificial vertebral body comprises handle, is characterized in being provided with cylindrical boss at the leading section of handle.
The localizer that the present invention installs from fixed artificial vertebral body comprises handle, is characterized in, is provided with the sleeve of arc dowel pin and hold-down screw at the leading section of handle.
Because cover inner hollow, middle bent certain angle, adjustable length in of the present invention, the normal height of efficient recovery spinal column and the physiological curve on the mistake shape face can be arranged, and can realize its secular stable fusion, and the limit cover has tapping screw thread, other adds horizontal pinning and fixes, realization artificial vertebral body homeostasis is fixed, and utilizes the specific purpose tool that vertebral body is installed to make things convenient for the implantation of worker vertebral body again, has reduced the damage to surrounding tissue.
Description of drawings
Fig. 1 is the overall structure sketch map of the artificial vertebral body of the present invention;
Fig. 2 is the structural representation of cover 1 among the present invention;
Fig. 3 is the structural representation of limit of the present invention cover 4;
Fig. 4 is the structural representation of end cage plate 7 of the present invention;
Fig. 5 is the structural representation of the manual trepan of erecting tools of the present invention;
Fig. 6 is the structural representation of erecting tools arc spanner of the present invention;
Fig. 7 is the structural representation of erecting tools of the present invention location sight.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Referring to Fig. 1,2,3,4, overlap 4 and two ends of 1, two limit cover cage plate, 7 compositions of the present invention comprising from fixed artificial vertebral body in one, with being threaded, on the end cage plate 7 two jag spikes are arranged between middle cover 1, limit cover 4 and the end cage plate 7.Overall structure is symmetry up and down, inner hollow, adjustable length, the inside of middle cover 1 is a cavity structure, be used to dose bone grafting or bone morphogenetic protein(BMP) (BMP) to realize the long-term stability fusion of artificial vertebral body and vertebra, there are the angle of bend of 6～12 degree at the middle part of middle cover 1 according to human spine's physiological bending, to recover the physiological curve of spinal column, limit cover 4 is provided with tapping screw thread 6 and locking nail hole 3 with the end that end cage plate 7 links to each other, the other end of limit cover 4 is respectively arranged with locating hole 2 and draw-in groove 5, the outline of end cage plate 7 is a waist shape structure, and the outer face of end cage plate 7 is provided with jag spike 8.
Referring to Fig. 5,6,7, be used to install and fix the present invention and comprise manual jumping through rings, arc spanner and localizer from the specific purpose tool of fixed artificial vertebral body.Manually jumping through rings comprise handle 9 and be arranged on handle 9 leading sections with handle 9 vertical zigzag annular bits 10, the diameter of annular bit 10 overlaps 4 with the limit and equates; The cylindrical boss 11 that the arc spanner comprises handle 9 and is arranged on handle 9 leading sections; Localizer comprises handle 9 and is arranged on the arc dowel pin 12 of handle 9 leading sections and the sleeve 13 of hold-down screw.
Need at first to determine the height of restoration and reconstruction spinal column in use, regulate the distance between the two ends cage plate 7, stiff end cage plate 7 and middle cover 1 are regulated limit cover 4 and are made its front end not exceed end cage plate 7 then, insert from body bone and artificial bone in middle cover 1, in order to using; Because the cortical bone densification is hard, the tapping screw thread 6 of limit cover 4 must get out annular groove when shooting hypocentrum, uses manual trepan head sharp sawteeth shape annular bit 10, cuts the cortex osteoplaque on upper end vertebral body and lower end vertebral body face; The jag spike 8 of end cage plate 7 is thrust hypocentrum, the cylindrical boss 11 of arc spanner leading section is inserted in the draw-in groove 5 of limit cover 4, by arc spanner rotation limit cover 4, limit cover 4 is shot hypocentrum by tapping screw thread 6, regulate screw thread with control vertebral body length, satisfy the treatment requirement, for reducing operation technique blindness, designed special-purpose localizer at artificial vertebral body of the present invention, the arc dowel pin 12 of localizer is inserted fixed locator in the locating hole 2 of limits cover 4, the sleeve 13 of hold-down screw is corresponding with locking nail hole 3 positions, sleeve 13 is used for the guiding of drill bit, utilize the localizer electricity consumption to be drilled in, beat transverse holes on the hypocentrum, last cross screw, fixedly artificial vertebral body and last hypocentrum is connected.
The invention has the advantages that after fixed artificial vertebral body is implanted to need not associating use spinal column internal fixation device, and can play the effect of held stationary equally.This artificial vertebral body inner hollow, middle bent certain angle, adjustable length can have the normal height and the physiological curve of efficient recovery spinal column simultaneously, and can realize that its secular stabilization of bony tissue merges.
Claims (3)
1, from fixed artificial vertebral body, comprise crooked middle cover [1] and the end cage plate [7] that is separately positioned on middle cover [1] two ends, it is characterized in that: on the middle cover [1] between the two ends cage plate [7], also be provided with both sides covers [4], limit cover [4] is provided with tapping screw thread [6] and locking nail hole [3] with the end that end cage plate [7] links to each other, and the other end of limit cover [4] is respectively arranged with locating hole [2] and draw-in groove [5].
2, according to claim 1 from fixed artificial vertebral body, it is characterized in that: middle cover [1] overlaps between [4] by being threaded with the limit, and the inside of middle cover [1] is a cavity structure, and there is the angle of bend of 6～12 degree at the middle part of middle cover [1] according to human spine's physiological bending.
3, according to claim 1 from fixed artificial vertebral body, it is characterized in that: said end cage plate [7] overlaps [4] by being threaded with the limit, and the outline of end cage plate [7] is a waist shape structure, and the outer face of end cage plate [7] is provided with jag spike [8].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03134429 CN1214769C (en) | 2003-07-23 | 2003-07-23 | Self -fixing type artificial vertebral body and mounting tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03134429 CN1214769C (en) | 2003-07-23 | 2003-07-23 | Self -fixing type artificial vertebral body and mounting tool thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1483389A CN1483389A (en) | 2004-03-24 |
| CN1214769C true CN1214769C (en) | 2005-08-17 |
Family
ID=34154483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03134429 Expired - Fee Related CN1214769C (en) | 2003-07-23 | 2003-07-23 | Self -fixing type artificial vertebral body and mounting tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1214769C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101019787B (en) * | 2006-12-31 | 2012-09-05 | 中国人民解放军第四军医大学 | Physiological cervical vertebral reconstructing system |
| US9700425B1 (en) | 2011-03-20 | 2017-07-11 | Nuvasive, Inc. | Vertebral body replacement and insertion methods |
| US10278833B2 (en) * | 2016-09-14 | 2019-05-07 | Globus Medical, Inc. | Center lordotic mesh cage |
| US11596526B2 (en) | 2016-09-14 | 2023-03-07 | Globus Medical Inc. | Systems and methods for expandable corpectomy spacer implantation |
| CN110192937A (en) * | 2019-05-29 | 2019-09-03 | 北京市春立正达医疗器械股份有限公司 | Centrum prosthese |
| CN110141406B (en) * | 2019-06-21 | 2024-06-18 | 上海长征医院 | Thoracolumbar implant and artificial vertebral body for thoracolumbar |
-
2003
- 2003-07-23 CN CN 03134429 patent/CN1214769C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1483389A (en) | 2004-03-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou IDEAL Medical Appliance Co., Ltd. Assignor: Xi'an Jiaotong University Contract record no.: 2010320000897 Denomination of invention: Self -fixing type artificial vertebral body and mounting tool thereof Granted publication date: 20050817 License type: Exclusive License Open date: 20040324 Record date: 20100712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050817 Termination date: 20150723 |
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| EXPY | Termination of patent right or utility model |