CN205144803U - Artificial vertebral body - Google Patents
Artificial vertebral body Download PDFInfo
- Publication number
- CN205144803U CN205144803U CN201520974981.XU CN201520974981U CN205144803U CN 205144803 U CN205144803 U CN 205144803U CN 201520974981 U CN201520974981 U CN 201520974981U CN 205144803 U CN205144803 U CN 205144803U
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- vertebral body
- artificial vertebral
- soleplate
- locking device
- 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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Abstract
The utility model discloses an artificial vertebral body relates to medical equipment technical field. Including inner skleeve and outer sleeve, the outer sleeve has locking device, inclined hole and soleplate, locking device is located the outer sleeve head, the inclined hole is located outer sleeve section of thick bamboo wall, the soleplate is located the outer sleeve afterbody, the inner skleeve afterbody is connected with the outer sleeve head. Interior outer sleeve is network structure, implants the high back of artificial vertebral body adjustment, can install the autologous bone once more and reach, the porous net column structure can provide the contact surface of maximize, improves the integration rate.
Description
Technical field
This utility model relates to technical field of medical equipment, is specifically related to a kind of artificial vertebral body.
Background technology
Clinically, the diseases such as vertebral tumor and serious burst vertebral fracture, deformity of spine, need the capable vertebra corpectomy in front road or the way of escape or facet locking or vertebral body entirely to cut, and need the height of recovery vertebral body and support reliably and merge.
The titanium net of current clinical practice and artificial vertebral body are all undesirable, particularly posterior transpedicle is cut or the secondary patient entirely cut entirely, because there is the interference of spinal cord safety, settle the artificial vertebral body that uses clinically at present or titanium net extremely not aspect and dangerous, and sometimes size and highly very improper, the titanium net used clinically at present and artificial vertebral body are as simple support type: this type artificial vertebral body is only played a supporting role, and does not possess fixation, and titanium network capacity easily has vertebral body to cave in; Strut fixed pattern, the exercise performance of natural spine unit can be simulated, little on the mechanical environment impact of spinal column after implant into body, but its inside had can not bone grafting, what have can bone grafting but fixing not firm, and after implanting, itself length is fixed and can not regulate, and therefore selects stricter during application, otherwise be not only difficult to recover desirable vertebral height, and have the danger come off.
There is simple adjustable fixed pattern artificial vertebral body clinically at present, can only simple adjustment height, by fixing with adjacent endplates pricking object shape, fixing not firm, mainly to fix by nail rod.
Utility model content
For the deficiencies in the prior art, this utility model discloses a kind of artificial vertebral body, can solve existing artificial vertebral body crystallized ability poor, needs the problem that external device (ED) is auxiliary.
For realizing above object, this utility model is achieved by the following technical programs:
A kind of artificial vertebral body, comprise inner sleeve and outer sleeve, described outer sleeve has locking device, inclined hole and soleplate, and described locking device is positioned at outer sleeve head, and described inclined hole is positioned at outer sleeve barrel, and described soleplate is positioned at outer sleeve afterbody; Described inner sleeve afterbody is connected with outer sleeve head.
Preferably, described inner sleeve head and soleplate afterbody all have engaging tooth, and described engaging tooth cross section is triangle.
Preferably, described locking device comprises screw and screw.
Preferably, described inclined hole is at least provided with four.
Preferably, described soleplate has screw hole.
Preferably, described screw hole is provided with three.
This utility model discloses a kind of artificial vertebral body, and inside and outside sleeve is network structure, after implantable artificial vertebral body adjustment height, again can install autologous bone and reach; Porous network structure can provide maximized contact surface, improves fusion rate.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure 1, inner sleeve, 2, outer sleeve, 101, engaging tooth, 201, locking device, 202, inclined hole, 203, soleplate, 204, engaging tooth.
Detailed description of the invention
For making the object of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
As shown in Figure 1, a kind of artificial vertebral body described in this utility model embodiment, possesses height-adjustable device.Possess the neighbouring soleplate be closely connected, end face is triangle engaging tooth, has with upper hypocentrum contact area large, the advantage that enabling capabilities is strong, adds constant intensity and merges area.
The outer sleeve of different-diameter can be uncapped and with locking device, advantage is: diameter is not etc., the artificial vertebral body varied in size can be installed, autologous bone bone-graft fusion in hypocentrum and artificial vertebral body kept supplying by inner sleeve, outer sleeve can be uncapped, implant autologous bone inadequate time, the autologous bone of filling can be installed again, locking device is locked after installation bone grafting is satisfied, ensures that whole artificial vertebral body is an entirety.Sidewall porous, soleplate porous network structure, can provide contact surface for autologous bone and vertebral body and improve fusion rate.
Four oblique lock screw pore structures, installation artificial vertebral body and adjustment height and position satisfied after, be screwed into 2-3 piece of pinning screw to vertebral body, ensure that artificial vertebral body does not loosen, do not produce displacement.
This design has taken into account the stability of immediate postoperative, takes into account long-time stability again, can form permanent bone merge with vertebral body; Fully can recover the height of vertebral body; Implant convenient and safe; Titanium alloy material has good biocompatibility and good anti-fatigue performance, provides safe and reliable stability, titanium alloy material before reaching Bony union, does not affect MRI and checks.
This utility model discloses a kind of artificial vertebral body in sum, and inside and outside sleeve is network structure, after implantable artificial vertebral body adjustment height, again can install autologous bone and reach; Porous network structure can provide maximized contact surface, improves fusion rate.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail this utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.
Claims (6)
1. an artificial vertebral body, is characterized in that: comprise inner sleeve and outer sleeve, and described outer sleeve has locking device, inclined hole and soleplate, and described locking device is positioned at outer sleeve head, and described inclined hole is positioned at outer sleeve barrel, and described soleplate is positioned at outer sleeve afterbody; Described inner sleeve afterbody is connected with outer sleeve head.
2. artificial vertebral body as claimed in claim 1, it is characterized in that: described inner sleeve head and soleplate afterbody all have engaging tooth, described engaging tooth cross section is triangle.
3. artificial vertebral body as claimed in claim 1, is characterized in that: described locking device comprises screw and screw.
4. artificial vertebral body as claimed in claim 1, is characterized in that: described inclined hole is at least provided with four.
5. artificial vertebral body as claimed in claim 1, is characterized in that: described soleplate has screw hole.
6. artificial vertebral body as claimed in claim 5, is characterized in that: described screw hole is provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974981.XU CN205144803U (en) | 2015-11-30 | 2015-11-30 | Artificial vertebral body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974981.XU CN205144803U (en) | 2015-11-30 | 2015-11-30 | Artificial vertebral body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205144803U true CN205144803U (en) | 2016-04-13 |
Family
ID=55680550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520974981.XU Expired - Fee Related CN205144803U (en) | 2015-11-30 | 2015-11-30 | Artificial vertebral body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205144803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324406A (en) * | 2017-12-25 | 2018-07-27 | 南京中医药大学 | A kind of cylinder mould that length can freely extend |
| CN110141404A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Cervical vertebra implant system |
-
2015
- 2015-11-30 CN CN201520974981.XU patent/CN205144803U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324406A (en) * | 2017-12-25 | 2018-07-27 | 南京中医药大学 | A kind of cylinder mould that length can freely extend |
| CN110141404A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Cervical vertebra implant system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161130 |