CN204683847U - Expansible Invasive lumbar fusion device - Google Patents
Expansible Invasive lumbar fusion device Download PDFInfo
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- CN204683847U CN204683847U CN201520243938.6U CN201520243938U CN204683847U CN 204683847 U CN204683847 U CN 204683847U CN 201520243938 U CN201520243938 U CN 201520243938U CN 204683847 U CN204683847 U CN 204683847U
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- invasive lumbar
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Abstract
The utility model discloses a kind of expansible Invasive lumbar fusion device, comprise the shell body be made up of two expansion block (1) splits, it is characterized in that: be cavity structure (2) in described shell body, inside is provided with leading truck (3) and position-limited rack (4); Described position-limited rack (4) upper end is placed in the inside casing top of leading truck (3) and is connected with leading truck (3) by screw (5), is fitted with leading truck (3) by the dislocation inclined-plane (6) of both sides in middle part; Position-limited rack (4) inside casing bottom is fixed in described leading truck (3) bottom.Fusion device device of the present utility model is screwed in shell body by screw and makes leading truck and position-limited rack relative movement, and then strut the effect that shell body plays expansion, medical personnel can adjust expanded height arbitrarily according to the intervertebral situation of patient, can realize good expansion effect.
Description
Technical field
This utility model relates to area of medical devices, particularly relates to a kind of expansible Invasive lumbar fusion device.
Background technology
Autologous bone bone grafting is regarded as the goldstandard of spinal column intervertebral fusion always, but complication is more, except existence is for except bone district pain, easy infection, also often occurs that plant bone mass slippage is deviate from, or subsides because of insufficient strength.Intervertebral disc fusion failure can be caused during bone grafting quantity not sufficient, cause spinal fusion surgery failure.Since having started fusion device technology the eighties in 20th century, because fusion device has advantages such as at once supporting and prevent bone grafting displacement, accepted by clinician soon and promoted.
Current fusion device is all fixing model, spine structure size due to different bone grafting patient there are differences and surgical wound is also different, doctor often needs the model being determined the fusion device implanted in operation by die trial, but this also usually can not meet the fusion device model of intervertebral space of fitting most.Simultaneously current fusion device surface only provides the physical support on mechanics, can not the growing into of induced osteogenesis.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of distensible Invasive lumbar fusion device, and this fusion device can make entirety realize the expansion of certain length scope by internal structure, to meet interpyramidal support requirement.
Technical problem to be solved in the utility model is achieved through the following technical solutions:
A kind of expansible Invasive lumbar fusion device, comprise the shell body be made up of the split of two expansion blocks, be cavity structure in described shell body, inside is provided with leading truck and position-limited rack; Described position-limited rack upper end is placed in the inside casing top of leading truck and is connected with leading truck by screw, is fitted by the dislocation inclined-plane of both sides and leading truck in middle part; Position-limited rack inside casing bottom is fixed in described leading truck bottom.
Be imitative bone trabecula 3D stereoscopic graticule pore structure in the middle part of described expansion block, top is fixed with leading truck fixture block, and bottom is fixed with position-limited rack fixture block, and side has T-shaped through hole.
In described cavity structure, two ends are respectively equipped with isosceles trapezoid draw-in groove and square draw-in groove.
Described leading truck lower end is clamped by the isosceles trapezoid draw-in groove of triangular bump and cavity structure; The square draw-in groove that described position-limited rack upper end leads to trapezoidal projection and cavity structure clamps.
Described leading truck fixture block top has the semicircular spin slot adapted with described screw external diameter.
Described leading truck bottom is fixed by pin and position-limited rack.
Described position-limited rack fixture block bottom has the semicircle cotter slot adapted with pin external diameter.
Described screw top is concave hexagonal (hexagon)nut.
The top of described leading truck and position-limited rack all has screw; The bottom of described leading truck and position-limited rack all has pin hole.
Described expansion block lateral surface is also in sawtooth corrugation shape.
This utility model adopt technique scheme have technique effect be:
(1) fusion device device of the present utility model leads to the screw rod can crossing pull-push piece and screws in shell body and make taper seat relative movement, and then strut the effect that shell body plays expansion, medical personnel can adjust expanded height arbitrarily according to the intervertebral situation of patient, can realize good expansion effect.
(2) the imitative trabecular bone structure of shell body can induce Bone Ingrowth, improves bone fusion rate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail
Fig. 1 is front view before fusion device expansion
Fig. 2 is front view after fusion device expansion
Fig. 3 is top view before fusion device expansion
Fig. 4 is top view after fusion device expansion
Fig. 5 is leading truck structure chart
Fig. 6 is spacing shelf structure figure
Fig. 7 is expansion block axonometric chart
Fig. 8 is expansion block side view
Fig. 9 is screw figure
Figure 10 is pin figure
Wherein, 1-expands block, 2-cavity structure, 3-leading truck, 4-position-limited rack, 5-screw, 6-misplaces inclined-plane, 7-leading truck fixture block, 8-position-limited rack fixture block, 9-T shape through hole, 10-isosceles trapezoid draw-in groove, the square draw-in groove of 11-, 12-triangular bump, the trapezoidal projection of 13-, 14-semicircular spin slot, 15-pin, the semicircle cotter slot of 16-, 17-screw, 18-pin hole
Detailed description of the invention
The expansible Invasive lumbar fusion device of one as shown in Fig. 1-Figure 10, comprise the shell body be made up of the split of two expansion blocks 1, be cavity structure 2 in shell body, inside is provided with leading truck 3 and position-limited rack 4; Described position-limited rack 4 upper end is placed in the inside casing top of leading truck 3 and is connected with leading truck 3 by screw 5, is fitted with leading truck 3 by the dislocation inclined-plane 6 of both sides in middle part; Position-limited rack 4 inside casing bottom is fixed in described leading truck 3 bottom.This fusion device can make leading truck and position-limited rack relative movement strut expansion block by the stroke of rotary screw as required and then realize the object of adjustment expanded height arbitrarily, meets interspinous support requirement.
Principle of the present utility model is: screw matches with two inclined plane slide block internal thread holes, can promote slide block by rotary screw, and then realizes expansion.
Be imitative bone trabecula 3D stereoscopic graticule pore structure in the middle part of expansion block 1, Bone Ingrowth can be induced, improve bone fusion rate, and then improve success rate of operation; Top is fixed with leading truck fixture block 7, and bottom is fixed with position-limited rack fixture block 8, and side has T-shaped through hole 9, can facilitate growing into of autologous bone, contributes to postoperative bone growth and recovers.
In cavity structure, two ends are respectively equipped with isosceles trapezoid draw-in groove 10 and square draw-in groove 11.
Leading truck 3 lower end is clamped by the isosceles trapezoid draw-in groove 10 of triangular bump and cavity structure 12; Described position-limited rack 4 upper end leads to trapezoidal projection 13 and clamps with the square draw-in groove 11 of cavity structure.
The semicircular spin slot 14 adapted with described screw 5 external diameter is had in the middle part of leading truck fixture block 7.
Leading truck 3 bottom is fixed by pin 15 and position-limited rack 4; The semicircle cotter slot 16 adapted with pin 15 external diameter is had in the middle part of position-limited rack fixture block 8.
The top of leading truck 3 and position-limited rack 4 all has screw 17; The bottom of described leading truck and position-limited rack 4 all has pin hole 18.
Screw 5 top is concave hexagonal (hexagon)nut.
Expansion block 1 lateral surface is also in sawtooth corrugation shape, and ripple can be that fusion device and intervertebral inner chamber increase frictional force, prevents fusion device slip mistake.
Claims (10)
1. an expansible Invasive lumbar fusion device, comprise the shell body be made up of two expansion block (1) splits, it is characterized in that: be cavity structure (2) in described shell body, inside is provided with leading truck (3) and position-limited rack (4); Described position-limited rack (4) upper end is placed in the inside casing top of leading truck (3) and is connected with leading truck (3) by screw (5), is fitted with leading truck (3) by the dislocation inclined-plane (6) of both sides in middle part; Position-limited rack (4) inside casing bottom is fixed in described leading truck (3) bottom.
2. expansible Invasive lumbar fusion device according to claim 1, it is characterized in that: described expansion block (1) middle part is imitative bone trabecula 3D stereoscopic graticule pore structure, top is fixed with leading truck fixture block (7), bottom is fixed with position-limited rack fixture block (8), and side has T-shaped through hole (9).
3. expansible Invasive lumbar fusion device according to claim 1, is characterized in that: described cavity structure (2) interior two ends are respectively equipped with isosceles trapezoid draw-in groove (10) and square draw-in groove (11).
4. expansible Invasive lumbar fusion device according to claim 1, is characterized in that: described leading truck (3) lower end is clamped by the isosceles trapezoid draw-in groove (10) of triangular bump (12) with cavity structure (2); Described position-limited rack (4) upper end leads to trapezoidal projection (13) and clamps with the square draw-in groove (11) of cavity structure (2).
5. expansible Invasive lumbar fusion device according to claim 2, is characterized in that: described leading truck fixture block (7) middle part has the semicircular spin slot (14) adapted with described screw (5) external diameter.
6. expansible Invasive lumbar fusion device according to claim 1, is characterized in that: described leading truck (3) bottom is fixed by pin (15) and position-limited rack (4).
7. expansible Invasive lumbar fusion device according to claim 2, is characterized in that: described position-limited rack fixture block (8) middle part has the semicircle cotter slot (16) adapted with pin (15) external diameter.
8. expansible Invasive lumbar fusion device according to claim 1, is characterized in that: described screw (5) top is concave hexagonal (hexagon)nut.
9. expansible Invasive lumbar fusion device according to claim 1, is characterized in that: the top of described leading truck (3) and position-limited rack (4) all has screw (17); The bottom of described leading truck and position-limited rack (4) all has pin hole (18).
10. expansible Invasive lumbar fusion device according to claim 2, is characterized in that: described expansion block (1) lateral surface is also in sawtooth corrugation shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243938.6U CN204683847U (en) | 2015-04-21 | 2015-04-21 | Expansible Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243938.6U CN204683847U (en) | 2015-04-21 | 2015-04-21 | Expansible Invasive lumbar fusion device |
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| CN204683847U true CN204683847U (en) | 2015-10-07 |
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| CN201520243938.6U Active CN204683847U (en) | 2015-04-21 | 2015-04-21 | Expansible Invasive lumbar fusion device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726171A (en) * | 2016-04-05 | 2016-07-06 | 广州爱锘德医疗器械有限公司 | Adjustable fusion cage device |
| CN106726020A (en) * | 2017-02-14 | 2017-05-31 | 广州爱锘德医疗器械有限公司 | Lifting Invasive lumbar fusion device |
| CN108289742A (en) * | 2015-07-17 | 2018-07-17 | 脊柱诊察公司 | Intervertebral device and correlation technique |
| CN108472143A (en) * | 2015-12-30 | 2018-08-31 | 纽文思公司 | Lordotic deployable fusion implant |
| CN109758272A (en) * | 2019-02-26 | 2019-05-17 | 珠海维尔康生物科技有限公司 | One kind can intermediate bone grafting be height-adjustable struts fusion device |
| TWI694808B (en) * | 2017-04-26 | 2020-06-01 | 義守大學 | Bone expander |
-
2015
- 2015-04-21 CN CN201520243938.6U patent/CN204683847U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289742A (en) * | 2015-07-17 | 2018-07-17 | 脊柱诊察公司 | Intervertebral device and correlation technique |
| CN108289742B (en) * | 2015-07-17 | 2021-02-05 | 脊柱诊察公司 | Intervertebral device and related methods |
| CN108472143A (en) * | 2015-12-30 | 2018-08-31 | 纽文思公司 | Lordotic deployable fusion implant |
| CN105726171A (en) * | 2016-04-05 | 2016-07-06 | 广州爱锘德医疗器械有限公司 | Adjustable fusion cage device |
| CN106726020A (en) * | 2017-02-14 | 2017-05-31 | 广州爱锘德医疗器械有限公司 | Lifting Invasive lumbar fusion device |
| CN106726020B (en) * | 2017-02-14 | 2018-09-07 | 广州爱锘德医疗器械有限公司 | Lift Invasive lumbar fusion device |
| TWI694808B (en) * | 2017-04-26 | 2020-06-01 | 義守大學 | Bone expander |
| US10695190B2 (en) | 2017-04-26 | 2020-06-30 | I-Shou University | Bone expandable device |
| CN109758272A (en) * | 2019-02-26 | 2019-05-17 | 珠海维尔康生物科技有限公司 | One kind can intermediate bone grafting be height-adjustable struts fusion device |
| CN109758272B (en) * | 2019-02-26 | 2020-01-17 | 珠海维尔康生物科技有限公司 | Distracting fusion cage with adjustable middle bone grafting height |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180125 Address after: 102299 Beijing Changping District science and Technology Park, No. 37 Zhongguancun Xingye garden, No. 5, No. two, north side Patentee after: Beijing Zhongnuo Hengkang Biotechnology Co., Ltd. Address before: 100029 Haidian District, Beijing on the road to information on the international entrepreneurship Park No. 2 D Dong 707D Patentee before: Li Peng |
|
| TR01 | Transfer of patent right |