CN103054638B - Memory alloy pull-stretch device - Google Patents
Memory alloy pull-stretch device Download PDFInfo
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- CN103054638B CN103054638B CN201310001870.6A CN201310001870A CN103054638B CN 103054638 B CN103054638 B CN 103054638B CN 201310001870 A CN201310001870 A CN 201310001870A CN 103054638 B CN103054638 B CN 103054638B
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- memory alloy
- push pedal
- reed spring
- stretching plate
- stretch device
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Abstract
The present invention relates to a kind of memory alloy pull-stretch device, comprise a lower cover, described lower cover is established a stretching plate, a push pedal is established in stretching plate upper end, described push pedal front end is provided with groove, is provided with the first reed spring in described groove, and described groove outer front end is provided with the second reed spring.The present invention can automatic driving-force adding, and volume is little, has shape memory function, can be embedded in body completely, not easy infection, easy to use, solving when existing Distraction Apparatus uses needs part thereof to extend to external and patient muscle's skin etc. that is that cause and organizes and can not get healing for a long time, is easy to the problem infected.
Description
Technical field
The present invention relates to distraction osteogenesis apparatus field, is a kind of memory alloy pull-stretch device specifically.
Background technology
In plastic operation, (as deformity, the plastic operation to increase etc.) need solve the problem of skeletonization stretching, such as some patients mandibular bone is less, mandibular bone can be divided, utilization special instrument is implanted, the mandibular bone of slow stretching bilateral segmentation, after the growth of bone site of cleavage makes new advances bone, accomplish the end in view.The stretching apparatus of current use mostly needs to extend to external, by the mode of external manual adjustment, realizes stretching.Although this technology is easy to adjust, because apparatus needs outside ennation, muscle skin etc. are organized and be can not get healing for a long time, are easy to cause infection; And because apparent size is comparatively large, very large inconvenience is caused to the action in patient's orthopedic treatment stage and maintenance.
Summary of the invention
Technical problem to be solved by this invention is that muscle skin etc. that existing stretching apparatus causes patient is in use organized and can not get healing for a long time, is easy to infect, thus provides a kind of memory alloy pull-stretch device.
The technical solution adopted for the present invention to solve the technical problems is:
Memory alloy pull-stretch device, comprises a lower cover, described lower cover is established a stretching plate, and a push pedal is established in stretching plate upper end, and described push pedal front end is provided with groove, is provided with the first reed spring in described groove, and described groove outer front end is provided with the second reed spring.
Described push pedal lower end contacts with stretching plate and is partly provided with tooth, and the front end of described stretching plate is provided with the tooth matched.
The tooth of described push pedal and stretching plate is unidirectional tooth.
A fixing head is established in described lower cover front end, and fixing head is provided with bone nail.
Described stretching plate rear end is provided with bone nail.
A upper cover plate is established in described lower cover upper end, to dividing into a boss inside upper cover plate.
Described first reed spring and the second reed spring all adopt memory alloy material to make.
First reed spring of the present invention and the second reed spring all adopt memorial alloy, the memory performance of apply materials, and the default phase transition temperature (Af) of the first reed spring is about 45 DEG C; The superelastic properties of apply materials, the default phase transition temperature (Af) of the second reed spring is about 30 DEG C.Because ambient temperature after implanting is at about 37 DEG C, the second reed spring is in parent phase state all the time and plays elastic performance, promotes push pedal lower end all the time and provides >=the active force of 20N; First reed spring is then in martensitic phase, comparatively soft, does not externally apply effective active force.The present invention can automatic driving-force adding, and volume is little, has shape memory function, can be embedded in body completely, not easy infection, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional view of the present invention;
Fig. 3 is plate pushing structure schematic diagram;
Fig. 4 is stretching plate structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details:
As shown in Figure 1 and Figure 2, a kind of memory alloy pull-stretch device, comprises a lower cover 1, lower cover 1 upper end cover one upper cover plate 2, to dividing into a boss 3 inside upper cover plate 2.Lower cover 1 is installed a stretching plate 4, stretching plate 4 upper end connects a push pedal 5, and push pedal 5 lower end contacts with stretching plate 4 and is partly provided with unidirectional tooth, and the front end of stretching plate 4 is also provided with the unidirectional tooth matched.There is a groove 8 push pedal 5 front end, and install the first reed spring 6 in groove 8, the boss 3 on upper cover plate 2 limits the first position of reed spring 6 in groove 8; Groove 8 outer front end is provided with the second reed spring 7.First reed spring 6 and the second reed spring 7 are memorial alloy manufacture.First reed spring 6 uses the memory performance of memory alloy material, and presetting phase transition temperature Af is about 45 DEG C; Second reed spring 7 uses the superelastic properties of memory alloy material.
The present invention installs a fixing head 10 in lower cover 1 front end, fixing head 10 is equipped with bone nail 11; Bone nail 11 is also equipped with in stretching plate 4 rear end, after using nail to be implanted by this memory alloy pull-stretch device, the ambient temperature in body is at about 37 DEG C, and the second reed spring 7 is in parent phase state all the time, play elastic performance, promote push pedal 5 all the time and the >=active force of 20N is provided; First reed spring 6 is then in martensitic phase, comparatively soft, does not externally apply effective active force.After using Ultrasonic Heating to 45 DEG C above, the first reed spring 6 reverts to parent phase state, continues externally to apply active force, and this active force overcomes the elasticity of the second reed spring 7, and promotion push pedal 5 produces displacement.Because now stretching plate 4 is fixed in the skeleton of side by nail, and it is less relative to push pedal 5 size, the strength (i.e. the restoring force of the first reed spring 6 generation) that push pedal 5 produces displacement makes stretching plate 4 be pushed up de-tooth downwards under the ramp effect of unidirectional tooth, and stretching plate 4 engages with next tooth of push pedal 5 under elasticity afterwards.The displacement of the first reed spring 6 limit by the size of upper cover plate 2 cavity, push pedal displacement about 1.5mm can only be promoted, and the tooth pitch of push pedal and stretching plate is set to 1mm, therefore each heating can only promote stretching plate displacement 1mm.Along with the stopping of heating, the first reed spring 6 changes martensitic phase into again, becomes flexible relative, and the power of the not only but also external generations >=20N of the second reed spring 7, promote push pedal 5, push pedal 5 drives stretching plate 4 to move, the process of repetition stretching.
Claims (6)
1. a memory alloy pull-stretch device, comprise a lower cover, it is characterized in that: described lower cover (1) is established a stretching plate (4), a push pedal (5) is established in stretching plate (4) upper end, described push pedal (5) front end is provided with groove (8), be provided with the first reed spring (6) in described groove (8), described groove (8) outer front end is provided with the second reed spring (7), and described first reed spring (6) and the second reed spring (7) all adopt memory alloy material to make.
2. memory alloy pull-stretch device according to claim 1, is characterized in that: described push pedal (5) lower end contacts with stretching plate (4) and is partly provided with tooth, and the front end of described stretching plate (4) is provided with the tooth matched.
3. memory alloy pull-stretch device according to claim 2, is characterized in that: described push pedal (5) is unidirectional tooth with the tooth of stretching plate (4).
4. memory alloy pull-stretch device according to claim 1 and 2, is characterized in that: a fixing head (10) is established in described lower cover (1) front end, and fixing head (10) is provided with bone nail (11).
5. memory alloy pull-stretch device according to claim 1 and 2, is characterized in that: described stretching plate (4) rear end is provided with bone nail (11).
6. memory alloy pull-stretch device according to claim 1, is characterized in that: a upper cover plate (2) is established in described lower cover (1) upper end, and upper cover plate (2) inner side is to dividing into a boss (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001870.6A CN103054638B (en) | 2013-01-05 | 2013-01-05 | Memory alloy pull-stretch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001870.6A CN103054638B (en) | 2013-01-05 | 2013-01-05 | Memory alloy pull-stretch device |
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| Publication Number | Publication Date |
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| CN103054638A CN103054638A (en) | 2013-04-24 |
| CN103054638B true CN103054638B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310001870.6A Active CN103054638B (en) | 2013-01-05 | 2013-01-05 | Memory alloy pull-stretch device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112972061A (en) * | 2021-02-04 | 2021-06-18 | 胡军 | Novel anti-infection periosteum stretching device and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415660A (en) * | 1994-01-07 | 1995-05-16 | Regents Of The University Of Minnesota | Implantable limb lengthening nail driven by a shape memory alloy |
| CN1308509A (en) * | 1998-07-02 | 2001-08-15 | 威顿斯坦股份有限两合公司 | Bone distraction device |
| CN1589123A (en) * | 2001-11-19 | 2005-03-02 | 维特恩斯坦股份公司 | Skeletal distraction device |
| CN101336094A (en) * | 2005-12-08 | 2008-12-31 | 新特斯有限责任公司 | Apparatus and methods for treating bone |
| CN101938950A (en) * | 2008-03-19 | 2011-01-05 | 阿尔托大学基金会 | Internal osteodistraction device |
| CN203220427U (en) * | 2013-01-05 | 2013-10-02 | 兰州西脉记忆合金股份有限公司 | Memory alloy distractor |
-
2013
- 2013-01-05 CN CN201310001870.6A patent/CN103054638B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5415660A (en) * | 1994-01-07 | 1995-05-16 | Regents Of The University Of Minnesota | Implantable limb lengthening nail driven by a shape memory alloy |
| CN1308509A (en) * | 1998-07-02 | 2001-08-15 | 威顿斯坦股份有限两合公司 | Bone distraction device |
| CN1589123A (en) * | 2001-11-19 | 2005-03-02 | 维特恩斯坦股份公司 | Skeletal distraction device |
| CN101336094A (en) * | 2005-12-08 | 2008-12-31 | 新特斯有限责任公司 | Apparatus and methods for treating bone |
| CN101938950A (en) * | 2008-03-19 | 2011-01-05 | 阿尔托大学基金会 | Internal osteodistraction device |
| CN203220427U (en) * | 2013-01-05 | 2013-10-02 | 兰州西脉记忆合金股份有限公司 | Memory alloy distractor |
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| CN103054638A (en) | 2013-04-24 |
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Owner name: CENG RONGSHENG Free format text: FORMER OWNER: XIAMEI MARMEM CO LTD, LANZHOU Effective date: 20130607 Owner name: XIAMEI MARMEM CO LTD, LANZHOU Free format text: FORMER OWNER: CENG RONGSHENG Effective date: 20130607 |
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Effective date of registration: 20130607 Address after: 730000 Lanzhou, Chengguan District, Gansu Yan Nan Road, No. 14 Applicant after: Xiamei Marmem Co., Ltd., Lanzhou Applicant after: Zeng Rongsheng Address before: 730000 Lanzhou, Chengguan District, Gansu Yan Nan Road, No. 14 Applicant before: Zeng Rongsheng Applicant before: Xiamei Marmem Co., Ltd., Lanzhou |
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