CN103054638A - Memory alloy distractor - Google Patents
Memory alloy distractor Download PDFInfo
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- CN103054638A CN103054638A CN2013100018706A CN201310001870A CN103054638A CN 103054638 A CN103054638 A CN 103054638A CN 2013100018706 A CN2013100018706 A CN 2013100018706A CN 201310001870 A CN201310001870 A CN 201310001870A CN 103054638 A CN103054638 A CN 103054638A
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- memory alloy
- plate
- push pedal
- distractor
- reed spring
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Abstract
The invention relates to a memory alloy distractor which comprises a lower cover plate. A distraction plate is arranged on the lower cover plate, a push plate is arranged at the upper end of the distraction plate, a groove is arranged at the front end of the push plate, a first leaf spring is arranged in the groove, and a second leaf spring is arranged at the front end of the outer portion of the groove. The memory alloy distractor can be automatically stressed, is small in size, has a shape memory function, can be completely embedded in a human body, is not easy to cause infection, is convenient to use, and solves the problem that tissues such as muscles and skins of a patient cannot be healed in a long time and are easy to infect due to the fact that a part of an existing distractor needs to extend out of a human body when the existing distractor is used.
Description
Technical field
The present invention relates to distraction osteogenesis apparatus field, is a kind of memory alloy pull-stretch device specifically.
Background technology
(such as deformity, the plastic operation that increases etc.) needs to solve the problem of skeletonization stretching in plastic operation, for example the some patients were mandibular bone is less, mandibular bone can be divided, the 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 that uses at present mostly need extend to external, and the mode by external manual adjustment realizes stretching.Although this technology is easy to adjust, because apparatus needs outside the ennation, muscle skin etc. are organized and be can not get for a long time healing, are easy to cause infection; And because apparent size is larger, action and the maintenance in patient's orthopedic treatment stage caused very large inconvenience.
Summary of the invention
Technical problem to be solved by this invention is that the muscle skin that existing stretching apparatus causes the patient in use etc. is organized and can not get for a long time healing, is easy to infect etc., thereby a kind of memory alloy pull-stretch device is provided.
The technical solution adopted for the present invention to solve the technical problems is:
Memory alloy pull-stretch device comprises a lower cover, establishes a stretching plate on the described lower cover, 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 the described groove, and described groove outer front end is provided with the second reed spring.
Described push pedal lower end contacts with the stretching plate and partly is provided with tooth, and the front end of described stretching plate is provided with the tooth that matches.
The tooth of described push pedal and stretching plate is unidirectional tooth.
Described lower cover front end is established a fixing head, 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, and the upper cover plate inboard is to dividing into a boss.
Described the first reed spring and the second reed spring all adopt memory alloy material to make.
The 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 ℃; The super bullet characteristic of apply materials, the default phase transition temperature (Af) of the second reed spring is about 30 ℃.Owing to implant rear ambient temperature about 37 ℃, the second reed spring is in parent phase state performance elastic performance all the time, and promoting all the time the push pedal lower end provides 〉=active force of 20N; The first reed spring then is in martensitic phase, and is comparatively soft, externally do not apply effective active force.But the present invention's automatic driving-force adding, volume is little, and shape memory function is arranged, and can be embedded in fully in the body, and easy infection is not easy to use.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is cutaway view of the present invention;
Fig. 3 is the plate pushing structure sketch map;
Fig. 4 is stretching plate structure sketch map.
The specific embodiment
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, and upper cover plate 2 inboards are to dividing into a boss 3.One stretching plate 4 is installed on the lower cover 1, and stretching plate 4 upper ends connect a push pedal 5, and push pedal 5 lower ends contact with stretching plate 4 and partly are provided with unidirectional tooth, and the front end of stretching plate 4 also is provided with the unidirectional tooth that matches.Push pedal 5 front ends have a groove 8, groove 8 interior installation the first reed springs 6, boss 3 restrictions the first position of reed spring 6 in groove 8 on the upper cover plate 2; Groove 8 outer front end are equipped with the second reed spring 7.The first reed spring 6 and the second reed spring 7 are the memorial alloy manufacturing.The first reed spring 6 uses the memory performance of memory alloy material, and default phase transition temperature Af is about 45 ℃; The second reed spring 7 uses the super bullet characteristic of memory alloy material.
The present invention installs a fixing head 10 at lower cover 1 front end, and bone nail 11 is housed on the fixing head 10; Bone nail 11 also is equipped with in stretching plate 4 rear ends, after using nail that this memory alloy pull-stretch device is implanted, the ambient temperature in the body is about 37 ℃, and the second reed spring 7 is in the parent phase state all the time, the performance elastic performance, promoting all the time push pedal 5 provides 〉=active force of 20N; The first reed spring 6 then is in martensitic phase, and is comparatively soft, externally do not apply effective active force.After using more than the Ultrasonic Heating to 45 ℃, the first reed spring 6 reverts to the parent phase state, continues externally to apply active force, and this active force overcomes the elasticity of the second reed spring 7, promotes push pedal 5 generation displacements.Because stretching this moment plate 4 is fixed in the side seam bone by nail, and less with respect to push pedal 5 sizes, the strength (i.e. the first reed spring 6 produce restoring forces) that push pedal 5 produces displacements makes stretching plate 4 be taken off tooth by downward top under the ramp effect of unidirectional tooth, and stretching plate 4 meshes with next tooth of push pedal 5 under elasticity afterwards.The displacement of the first reed spring 6 is limited by the size of upper cover plate 2 cavitys, can only promote about push pedal displacement 1.5mm, and the tooth pitch of push pedal and stretching plate is set to 1mm, so each heating can only promote stretching plate displacement 1mm.Along with stopping of heating, the first reed spring 6 changes again martensitic phase into, becomes relatively soft, and the second reed spring 7 i.e. the external power of generations 〉=20N again, promotes push pedal 5, and push pedal 5 drives 4 motions of stretching plates, the process of repetition stretching.
Claims (7)
1. memory alloy pull-stretch device, comprise a lower cover, it is characterized in that: establish a stretching plate (4) on the described lower cover (1), 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 the described groove (8), described groove (8) outer front end is provided with the second reed spring (7).
2. memory alloy pull-stretch device according to claim 1 is characterized in that: described push pedal (5) the lower end part that contacts with stretching plate (4) is provided with tooth, and the front end of described stretching plate (4) is provided with the tooth that matches.
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, it is characterized in that: described lower cover (1) front end is established a fixing head (10), and fixing head (10) is provided with bone nail (11).
5. memory alloy pull-stretch device according to claim 1 and 2, it 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) is inboard to dividing into a boss (3).
7. memory alloy pull-stretch device according to claim 1 and 2 is characterized in that: described the first reed spring (6) all adopts memory alloy material to make with the second reed spring (7).
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103054638A true CN103054638A (en) | 2013-04-24 |
| CN103054638B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972061A (en) * | 2021-02-04 | 2021-06-18 | 胡军 | Novel anti-infection periosteum stretching device and application |
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| CN103054638B (en) | 2015-11-18 |
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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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