CN102772240A - Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device - Google Patents
Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device Download PDFInfo
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- CN102772240A CN102772240A CN2012102982886A CN201210298288A CN102772240A CN 102772240 A CN102772240 A CN 102772240A CN 2012102982886 A CN2012102982886 A CN 2012102982886A CN 201210298288 A CN201210298288 A CN 201210298288A CN 102772240 A CN102772240 A CN 102772240A
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- bone fracture
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Abstract
The invention discloses an intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device, comprising a body and expansion forks, wherein the expansion forks are respectively arranged on two sides of the body and are made of a memory alloy material. The bone fracture resetting and fixing device disclosed by the invention is made of a nickel titanium memory alloy material, is based on the characteristic that the material generates memory deformation in a temperature range of 0-40 DEG C, and is optimally designed in combination with ergonomics. When in use, the bone fracture resetting and fixing device is put in brine ice of 0-5 DEG C, the two expansion forks are closed, the device is put into a scaphoid bone from the bone fracture node after drilling, hot brine of 40 DEG C is wetly dressed on the fixing device, and dynamic stress is generated due to the martensitic effect of the nickel titanium memory alloy plate, so that the stress is natural and soft, the device and the bone are combined steadily and reliably, and the device is favorable to stress resetting and bone fracture fixation. The intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device is wide in application and especially suitable for resetting and fixation of fracture of scaphoid, external fixation is not required after internal fixation, the operation is simple, postoperative infection is avoidable, and postoperative early movement and recovery of wrist functions of a patient are facilitated.
Description
Technical field
The invention belongs to technical field of medical instruments, further belong to the orthopedic instrument technical field, be specifically related to a kind of converged fixed of fracturing that is used to, be particularly suitable for fracture of scaphoid bone of wrist reset with fixed bone in the runback form height imitate the reduction of the fracture and fixture.
Background technology
Fracture is the human body frequent situation that sustains an injury, and the reduction of the fracture fixedly is the most frequently used medical procedure.Wrist is mankind's functional parts the most flexibly, and carpal bone is that the bone bonded by the polylith different structure forms, and structure is very complicated.In case come to harm, it resets fixing bigger than the reduction of the fracture difficulty at other positions.The general fixedly fracture of the carpal bone positions that reset such as Kirschner wire, fixation steel plate of adopting that reset of prior art; Because these apparatuses are fixing the intercarpal joints position there is not pressurization; Postoperative needs the external fixation of long period, recovers to affect for patient's postoperative function, promptly recovers slower.And steel plate screw is fixing will on less carpal bone, hole, and complicated operation increases operation wound, influence function of joint, and for the fixing of wrist nut bone, complication such as pain and wound infection possibly appear in postoperative, and are totally unfavorable to carpal post-operative recovery especially.Therefore, research and develop a kind of recovery that helps patient's postoperative early ambulant and wrist joint function, easy and simple to handle, the bone fracture internal fixing device that can avoid infection again is extremely important, is the best mode that overcomes the prior art defective.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, operation technique is easy, helps the recovery of patient's postoperative early ambulant and wrist joint function, and the runback form height is imitated the reduction of the fracture and fixture in the bone that can avoid infection again.
The objective of the invention is to realize like this, comprise body, expansion fork, described body both sides are provided with the expansion fork respectively, and make with memory alloy material.
The present invention adopts the Ultimum Ti material, in 0 ℃ ~ 40 ℃ scopes, produces the characteristic of memory deformation according to material, and combines the human engineering optimal design.During use, the present invention makes its two expansion forks closed in 0 ℃ ~ 5 ℃ brine ice; Dispose the nut bone from the fracture tuberosity boring back, on fixture, utilizes Ultimum Ti sheet material Ma Shi effect to produce dynamic plus-pressure with 40 ℃ hot salt brine soaks; Pressurization nature, soft; Device, bone are combined together, and secure helps pressurization and resets and fracture fixation.The present invention is simple in structure, low preparation cost.The scope of application is extensive, is particularly suitable for resetting with fixing of fracture of scaphoid bone, need not external fixation behind the internal fixation, and is easy and simple to handle, can avoid postoperative infection again, helps the recovery of patient's postoperative early ambulant and wrist joint function.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Fig. 2 is another embodiment structural representation of the present invention;
Fig. 3 is the third embodiment of the invention structural representation;
Fig. 4 is the four embodiment of the invention structural representation;
Fig. 5 is the fifth embodiment of the invention structural representation;
Fig. 6 is the sixth embodiment of the invention structural representation.
Among the figure: the 1-body, 2-expands fork, the hook-shaped structure of 21-, 22-tooth-shape structure, 211-zigzag structure, 3-fixed teeth, the secondary expansion fork of 4-.
The specific embodiment
Below in conjunction with accompanying drawing invention is described further, but never in any form the present invention is limited, any conversion based on training centre of the present invention is done all falls into protection scope of the present invention.
As shown in Figure 1: novel body 1, the expansion fork 2 of comprising of this use, described body 1 both sides are provided with expansion fork 2 respectively, and make with memory alloy material.
Described expansion fork 2 is a symmetrical structure, and the circular arc transition connects between the antitrope.
Fig. 2 illustrates the structure of another embodiment of the present invention, and the hook-shaped structure 21 of 2 front end arranged outside is pitched in described expansion.
Fig. 3 illustrates the structure of the third embodiment of the present invention, and described expansion is pitched 2 exterior front tooth-shape structure 22 is set.
Fig. 4 illustrates the structure of the 4th kind of embodiment of the present invention, and described expansion is pitched rear portion, 2 outside secondary expansion fork 4 is set.Secondary expansion fork 4 helps to cooperate main expansion to fork better fixation.
Fig. 5 illustrates the structure of the 5th kind of embodiment of the present invention, and described expansion is pitched rear portion, 2 outside and near body 1 place fixed teeth 3 is set.This mode helps the mate-assist expansion to fork fixation
Fig. 6 illustrates the structure of the 6th kind of embodiment of the present invention, on the described hook-shaped structure 21 zigzag structure 211 is set.Help hook-shaped structure division and better play the support fixation effect, avoid occurring skidding.
The thickness of described body 1 is 2 ~ 5mm.
Described body 1 middle part is an engraved structure, and weight reduction effectively helps plastic deformation again, is suitable for the use situation of the big expansive force of aperture.
The opening angle of said expansion fork 2 is 10 ° ~ 25 °, is optimized for 15 °.
The thickness of described expansion fork 2 is 1 ~ 5mm.
When described body 1 middle part width launches for expansion fork 2 fully 1/3 ~ 2/3 of width.
The present invention adopts the Ultimum Ti material, and other memory alloy materials with complex characteristic can be realized the object of the invention equally.
Be fixed as the example explanation with fracture of scaphoid bone of wrist below
Operation principle of the present invention and work process:
In 0 ° C to 40 ° C temperature range, produce the characteristic of memory deformation according to material, utilize the dynamic plus-pressure that produces in the change procedure to reset, fixedly carpal bone is avoided patient's traumatic infection, is beneficial to the carpal functional rehabilitation of patient.The design that the present invention expands fork, hook and special angle thereof more helps the reduction of the fracture with fixing, helps patient's postoperative early ambulant.
Use when of the present invention; At first being placed in 0 ° makes inner fixing device of the present invention softening to the brine ice of 5 ° of C; Draw the expansion fork of inner fixing device in closure, insert in the fixing hole of accomplishing fluently at the tubercle of scaphoid bone place, after inner fixing device is implanted in the nut bone with convenient; With 40 ℃ hot salt brine soak inner fixing device, the restoring force that is produced in inner fixing device form recovery process nature aggregates into one with sclerite.The hook that expansion is stuck will pressurize to prevent that two fracture ends from separating or displacement.Need not as the prior art fixture, to fix, avoid fracture site caused secondary damage and cause infection influencing rehabilitation of patients by external force or external parts.
Claims (10)
1. the interior runback form height of bone is imitated the reduction of the fracture and fixture, comprises body (1), expansion fork (2), and it is characterized in that: described body (1) both sides are provided with expansion respectively and pitch (2), and make with memory alloy material.
2. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 1, it is characterized in that: described expansion fork (2) is symmetrical structure, and the circular arc transition connects between the antitrope.
3. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 1 and 2, it is characterized in that: the described expansion fork hook-shaped structure of (2) front end arranged outside (21).
4. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 1 and 2, it is characterized in that: described expansion fork (2) exterior front is provided with tooth-shape structure (22).
5. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 1 and 2, it is characterized in that: rear portion, described expansion fork (2) outside is provided with secondary expansion fork (4).
6. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 1 and 2, it is characterized in that: fixed teeth (3) is located to be provided with near body (1) in rear portion, described expansion fork (2) outside.
7. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 3, it is characterized in that: zigzag structure (211) is set on the described hook-shaped structure (21).
8. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 3, it is characterized in that: rear portion, described expansion fork (2) outside is provided with secondary expansion fork (4).
9. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 3, it is characterized in that: fixed teeth (3) is located to be provided with near body (1) in rear portion, described expansion fork (2) outside.
10. the runback form height is imitated the reduction of the fracture and fixture in the bone according to claim 4, it is characterized in that: rear portion, described expansion fork (2) outside is provided with secondary expansion fork (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298288.6A CN102772240B (en) | 2012-08-21 | 2012-08-21 | Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298288.6A CN102772240B (en) | 2012-08-21 | 2012-08-21 | Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102772240A true CN102772240A (en) | 2012-11-14 |
| CN102772240B CN102772240B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210298288.6A Expired - Fee Related CN102772240B (en) | 2012-08-21 | 2012-08-21 | Intra-osseous self-restoring high-efficiency bone fracture resetting and fixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280753A (en) * | 2017-07-28 | 2017-10-24 | 兰州西脉记忆合金股份有限公司 | A kind of calcaneum ladder steel plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205186Y (en) * | 1994-05-06 | 1995-08-16 | 湖南医科大学附属湘雅医院 | Double flat intramedullary nail system |
| CN2206095Y (en) * | 1994-12-28 | 1995-08-30 | 李建民 | Combined self-locking rotating intramedullary pin |
| FR2846545B1 (en) * | 2002-10-30 | 2005-09-09 | Bouali Amara | INTRAMEDULAR OSTEOSYNTHESIS IMPLANT |
| US20080177262A1 (en) * | 2005-04-14 | 2008-07-24 | Marc Augoyard | Intramedullar Osteosynthetic Device of Two Bone Parts, In Particular of the Hand and/or Foot |
| US20100131014A1 (en) * | 2007-03-20 | 2010-05-27 | Memometal Technologies | Osteosynthesis device |
-
2012
- 2012-08-21 CN CN201210298288.6A patent/CN102772240B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205186Y (en) * | 1994-05-06 | 1995-08-16 | 湖南医科大学附属湘雅医院 | Double flat intramedullary nail system |
| CN2206095Y (en) * | 1994-12-28 | 1995-08-30 | 李建民 | Combined self-locking rotating intramedullary pin |
| FR2846545B1 (en) * | 2002-10-30 | 2005-09-09 | Bouali Amara | INTRAMEDULAR OSTEOSYNTHESIS IMPLANT |
| US20080177262A1 (en) * | 2005-04-14 | 2008-07-24 | Marc Augoyard | Intramedullar Osteosynthetic Device of Two Bone Parts, In Particular of the Hand and/or Foot |
| US20100131014A1 (en) * | 2007-03-20 | 2010-05-27 | Memometal Technologies | Osteosynthesis device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107280753A (en) * | 2017-07-28 | 2017-10-24 | 兰州西脉记忆合金股份有限公司 | A kind of calcaneum ladder steel plate |
| CN107280753B (en) * | 2017-07-28 | 2020-12-08 | 兰州西脉记忆合金股份有限公司 | Calcaneus ladder steel plate |
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| Publication number | Publication date |
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| CN102772240B (en) | 2014-07-09 |
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Effective date of registration: 20190212 Address after: 650032 No. 212 Daguan Road, Xishan District, Kunming City, Yunnan Province Patentee after: 92nd Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army Address before: 650032 Orthopaedic Hospital Affiliated to Kunming Hospital, Chengdu Military Region, Daguan Road, Xishan District, Kunming City, Yunnan Province Co-patentee before: Wu Yipi Patentee before: Xu Yongqing |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20190821 |