CN204971719U - Inlay lumbar vertebrae way of escape interbody fusion cage of ring that develops - Google Patents
Inlay lumbar vertebrae way of escape interbody fusion cage of ring that develops Download PDFInfo
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- CN204971719U CN204971719U CN201520556262.6U CN201520556262U CN204971719U CN 204971719 U CN204971719 U CN 204971719U CN 201520556262 U CN201520556262 U CN 201520556262U CN 204971719 U CN204971719 U CN 204971719U
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Abstract
The utility model provides an inlay lumbar vertebrae way of escape interbody fusion cage of ring that develops, belongs to medical instrument technical field. Including the main part that is the cuboid, the main part includes that the main part front end of bullet head shape, main part are terminal, is equipped with the main part upper surface of anti -skidding sawtooth, the main part lower surface that is equipped with anti -skidding sawtooth, main part left side wall, main part right side wall, main part inner chamber, the main part inner chamber comprises main part upper surface to main part lower surface, main part left side wall to main part right side wall fretwork, and main part upper surface to the main part lower surface of fretwork forms and runs through formula bone grafting window, its characterized in that, and main part left side wall is equipped with respectively to develop with main part right side wall and encircles. The utility model discloses it not only implants the convenience, can prevent to fuse ware follow intervertebral crack and deviate from, can not influence the observation that the postoperative fuses the position to the centrum moreover, and the bearing capacity is bigger in the centrum.
Description
Technical field
This utility model belongs to medical mechanical domain, is used to a kind of posterior lumbar interbody fusion device for the treatment of intervertebral disc of lumbar vertebra degeneration and lumbar instability specifically.
Background technology
Lumbar intervertebral disc each several part vertebral pulp, fibrous ring and cartilaginous lamina; especially after vertebral pulp has degenerative change in various degree; under the effect of external force factor; the Anular disruption of intervertebral disc, nucleus pulposus is given prominence to from part of breaking or emerges in rear or intraspinal tube, makes lumbar vertebra occur abnormal movement under physiological loads; cause bone and the compensatory hypertrophy of ligament; stenosis of disc space, the pathological change such as articular degeneration and spinal canal stenosis, has a strong impact on work and the life of patient.Lumbar spinal fusion is one of effective ways for the treatment of lower lumbar spine shakiness and lumbar spondylolisthesis, can recover the physiologic radian of spinal column, rebuilds lumbar stability.
Posterior lumbar interbody fusion device, when clinical practice, needs to implant from rear or proceeds posterolateral, therefore needs to reject a small amount of articular process, and set up less " implantation passage ".Narrower because implanting passage, so the factor needing emphasis to consider during design implants conveniently, prevent fusion device from deviating from from intervertebral space.There has been proposed many Invasive lumbar fusion device technical schemes, as publication number: CN103610521A " Invasive lumbar fusion device ", notification number: CN201586095U " Invasive lumbar fusion device ", notification number: CN202637192U " asymmetric cavity spinal column Invasive lumbar fusion device ", publication number: CN103919633A " a kind of vertebral column minimally invasive combination type fusion device ", " technical scheme such as notification number: CN203736352U " Anti-extrusion lumbar intervertebral fusion device ", notification number: 201612682U " a kind of posterior lumbar interbody fusion device " for this reason.It is convenient that above-mentioned technical scheme is implanted at Invasive lumbar fusion device, prevents the aspect such as deviating from from intervertebral space and played respective effect.But existing Invasive lumbar fusion device is made primarily of titanium alloy material or macromolecular material such as polyether-ether-ketone-PEEK, and the fusion device of metal easily causes stress shielding in vivo, implant site osteoporosis, osteanabrosis, implant site can be caused to subside or loosen etc. complication; Metal material also cannot pass through x-ray, affects the postoperative observation to vertebral fusion position.The spinal fusion device be made up of the macromolecular material of synthetic is as polyether-ether-ketone-PEEK, although elastic modelling quantity is close to the elastic modelling quantity of skeleton, has good corrosion resistance, can through X-ray.But the strength ratio titanium alloy of PEEK material is weak, and in vertebral body, bearing capacity is little, also can cause a series of complication: fusion device loosens; Fusion device subsides, and intervertebral space and Neuroforamen height reduce; Also has the development of PEEK fusion device X-ray in art mainly by several tiny titanium silks or tantalum wire, there is certain deficiency in the postoperative confirmation to vertebral fusion position, fusion device is easily caused to be laid not in place, syncretizing effect is poor, as the technical scheme of the latter's notification number: 201612682U " a kind of posterior lumbar interbody fusion device ".
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of posterior lumbar interbody fusion device being embedded with developing ring, it is not only implanted conveniently, can prevent fusion device from deviating from from intervertebral space, and the postoperative observation to vertebral fusion position can not be affected, in vertebral body, bearing capacity is larger.
Above-mentioned goal of the invention is achieved through the following technical solutions, a kind of posterior lumbar interbody fusion device being embedded with developing ring, comprises in cuboid; Main body comprises bullet-headed body front end, body ends, the body upper surface being provided with anti-skidding sawtooth, the body lower surface being provided with anti-skidding sawtooth, main body left side wall, main body right side wall, body lumen; Body lumen is made up of to body lower surface, main body left side wall 7 to main body right side wall hollow out body upper surface, body upper surface to the body lower surface of hollow out forms penetration type bone grafting window, its main points are, main body left side wall and main body right side wall are equipped with developing ring respectively.
As preferably, described main body adopts polyether-ether-ketone-PEEK material to make; Described developing ring adopts medical titanium alloy-TC4 material to make.
As preferably, described body ends 2 is provided with tapped through hole, is provided with auxiliary positioning groove at the main body left side wall of body ends, horizontal symmetry place, main body right side wall both sides.
This utility model compared with prior art has following beneficial effect: because, main body left side wall and main body right side wall are equipped with developing ring respectively, and main body adopts polyether-ether-ketone-PEEK material to make, polyether-ether-ketone-PEEK elasticity modulus of materials is close to the elastic modelling quantity of skeleton, there is good corrosion resistance, can through X-ray, fusion device is not easy to cause stress shielding in vivo, implant site osteoporosis, osteanabrosis, implant site can not be caused to subside or loosen etc. complication occur; Developing ring titanium alloy-TC4 material is made, so it can play reinforcing, stablize the effect of main body, can conveniently develop again, more obvious than development needle effect, pass through developing ring, can observe from main body left side wall, main body right side wall the position assessing Invasive lumbar fusion device by x-ray, the postoperative confirmation to vertebral fusion position is easy.
Accompanying drawing explanation
Fig. 1: structural representation axonometric chart of the present utility model
Fig. 2: the schematic diagram of this utility model body ends
Fig. 3: of the present utility modelly overlook diagram
Fig. 4: the structural representation of this utility model developing ring
Figure: 5: this utility model implants intervertebral disc of lumbar vertebra position view
In Fig. 1-5,1-body front end, 2-body ends, 3-body upper surface, 4-body lower surface, 5-tapped through hole, 6-auxiliary positioning groove, 7-main body left side wall, 8-main body right side wall, 9-penetration type bone grafting window, 10-body lumen, 11-main body, 12-developing ring, 13-intervertebral disc of lumbar vertebra.
Detailed description of the invention
Embodiment below just represented by figure Fig. 1-5 is further described this utility model, comprises the main body 11 in cuboid; Main body 11 comprises bullet-headed body front end 1, body ends 2, the body upper surface 3 being provided with anti-skidding sawtooth, the body lower surface 4 being provided with anti-skidding sawtooth, main body left side wall 7, main body right side wall 8, body lumen 10; Body lumen 10 is made up of body upper surface 3 to body lower surface 4, main body left side wall 7 to main body right side wall 8 hollow out, body upper surface 3 to the body lower surface 4 of hollow out forms penetration type bone grafting window 9, and main body left side wall 7 and main body right side wall 8 are equipped with developing ring 12 respectively; Described main body 11 adopts polyether-ether-ketone-PEEK material to make; Described developing ring 12 adopts medical titanium alloy-TC4 material to make; Described body ends 2 is provided with tapped through hole 5, is provided with auxiliary positioning groove 6 at the main body left side wall 7 of body ends 2, horizontal symmetry place, main body right side wall 8 both sides.
Claims (3)
1. be embedded with a posterior lumbar interbody fusion device for developing ring, comprise the main body (11) in cuboid; Main body (11) comprises bullet-headed body front end (1), body ends (2), the body upper surface (3) being provided with anti-skidding sawtooth, the body lower surface (4) being provided with anti-skidding sawtooth, main body left side wall (7), main body right side wall (8), body lumen (10); Body lumen (10) is made up of to main body right side wall (8) hollow out to body lower surface (4), main body left side wall (7) body upper surface (3), the body upper surface (3) of hollow out forms penetration type bone grafting window (9) to body lower surface (4), it is characterized in that, (8 are equipped with developing ring (12) respectively for main body left side wall (7) and main body right side wall.
2. the posterior lumbar interbody fusion device being embedded with developing ring according to claim 1, is characterized in that, described main body (11) adopts polyether-ether-ketone-PEEK material to make; Described developing ring (12) adopts medical titanium alloy-TC4 material to make.
3. the posterior lumbar interbody fusion device being embedded with developing ring according to claim 1 and 2, it is characterized in that, described body ends (2) is provided with tapped through hole (5), is provided with auxiliary positioning groove (6) at the main body left side wall (7) of body ends (2), horizontal symmetry place, main body right side wall (8) both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556262.6U CN204971719U (en) | 2015-07-29 | 2015-07-29 | Inlay lumbar vertebrae way of escape interbody fusion cage of ring that develops |
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| CN201520556262.6U CN204971719U (en) | 2015-07-29 | 2015-07-29 | Inlay lumbar vertebrae way of escape interbody fusion cage of ring that develops |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236330A (en) * | 2016-08-22 | 2016-12-21 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106923940A (en) * | 2017-03-28 | 2017-07-07 | 中奥汇成科技股份有限公司 | The preparation method and POROUS TITANIUM Invasive lumbar fusion device of POROUS TITANIUM Invasive lumbar fusion device |
| CN109730814A (en) * | 2018-12-20 | 2019-05-10 | 西安铂力特增材技术股份有限公司 | A kind of porous fusion device of titanium alloy and its processing method |
| CN111902104A (en) * | 2018-03-30 | 2020-11-06 | 华沙整形外科股份有限公司 | Radiolucent test device |
| CN111918624A (en) * | 2018-03-30 | 2020-11-10 | 华沙整形外科股份有限公司 | Radiolucent test device |
-
2015
- 2015-07-29 CN CN201520556262.6U patent/CN204971719U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236330A (en) * | 2016-08-22 | 2016-12-21 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106236330B (en) * | 2016-08-22 | 2019-03-05 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106923940A (en) * | 2017-03-28 | 2017-07-07 | 中奥汇成科技股份有限公司 | The preparation method and POROUS TITANIUM Invasive lumbar fusion device of POROUS TITANIUM Invasive lumbar fusion device |
| CN106923940B (en) * | 2017-03-28 | 2019-04-23 | 中奥汇成科技股份有限公司 | The preparation method and POROUS TITANIUM Invasive lumbar fusion device of POROUS TITANIUM Invasive lumbar fusion device |
| CN111902104A (en) * | 2018-03-30 | 2020-11-06 | 华沙整形外科股份有限公司 | Radiolucent test device |
| CN111918624A (en) * | 2018-03-30 | 2020-11-10 | 华沙整形外科股份有限公司 | Radiolucent test device |
| CN111902104B (en) * | 2018-03-30 | 2023-09-19 | 华沙整形外科股份有限公司 | Radiolucent test device |
| CN111918624B (en) * | 2018-03-30 | 2023-11-24 | 华沙整形外科股份有限公司 | Radiolucent test device |
| CN109730814A (en) * | 2018-12-20 | 2019-05-10 | 西安铂力特增材技术股份有限公司 | A kind of porous fusion device of titanium alloy and its processing method |
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