CN102319110A - Adjustable memory alloy patella steel plate in shape like Chinese character 'jing' - Google Patents
Adjustable memory alloy patella steel plate in shape like Chinese character 'jing' Download PDFInfo
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- CN102319110A CN102319110A CN201110256973A CN201110256973A CN102319110A CN 102319110 A CN102319110 A CN 102319110A CN 201110256973 A CN201110256973 A CN 201110256973A CN 201110256973 A CN201110256973 A CN 201110256973A CN 102319110 A CN102319110 A CN 102319110A
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- memorial alloy
- sheet metal
- alloy sheet
- memory alloy
- screw hole
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
Abstract
The invention discloses an adjustable memory alloy patella steel plate in a shape like a Chinese character 'jing', which comprises a memory alloy metal sheet a with two hook-shaped ends, a memory alloy metal sheet b, a memory alloy metal sheet c and a memory alloy metal sheet d, wherein a sliding groove hole a and a sliding groove hole b are arranged on the memory alloy metal sheet a, the two ends of the memory alloy metal sheet a are respectively provided with a screw hole a, a screw hole b, a screw hole c and a screw hole d, the four memory alloy metal sheets are arranged into a shape like a Chinese character 'jing' and have the same structure, and every two of the four memory alloy metal sheets are crossed at the position of the sliding groove holes and fixed by the screw hole a, the screw hole b, the screw hole c and the screw hole d in the crossed positions. The invention has the advantages of strong moldability, simpleness for operation, less time consumption, reliable fixing and no requirement of extra fixing, and well solves the problems that clinic doctors have in the field for many years.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of adjustable " well " font memorial alloy patella steel plate.
Background technology
Patella is a sesamoid bone maximum in the human body, is a kneed important component part, and the strength of its conduction and enhancing quadriceps femoris is safeguarded kneed stable.Patella fracture belongs to intra-articular fracture, is the commonly encountered diseases of the traumatology department, accounts for 1.65% of whole body fracture, deals with improperly having a strong impact on knee joint function.
The method of at present traditional fixedly Patella fracture has cordonnet maybe can absorb thick line cycling suturing fixation, tension band wire internal fixation, Kirschner wire tension band fixation, hollow screw internal fixation, patella fracture fixator fixation, titanium alloy pawl fixation.
It is a kind of traditional operation mode that cordonnet maybe can absorb thick line cycling suturing fixation, and it can draw sclerite again and get together, and has that operation is simple need not special installation; Be applicable to the advantage of all kinds fracture, but fixing not really definite, the tension force that produces in the time of can not resisting contraction or the knee joint flexing of quadriceps femoris; Sclerite horizontal shape occurs and moves, and forms " boat shape " deformity, and needs to use external fixation; Can not carry out functional exercise in early days, joint function recovery is not good enough.
The tension band wire internal fixation places the fracture tension side with tension band wire, and the principle on the applied engineering mechanics makes the tension force of fracture eliminated by tension band; Promote union of fracture to meet biomechanical principle and become compressive stress, operation technique is simple, does not need special installation and apparatus; Expense is lower, can widely popularize to basic unit, but it is loosening to occur steel wire easily; And available sometimes bone piece of threading a needle is also limited, the pin end also forward chafe cause pain, and can influence and suffer from knee joint functional exercise.
Kirschner wire tension band fixation has biomechanics fixed effect reliably, becomes flexible but when using, be prone to internal fixation, and the very difficulty of threading a needle sometimes is difficult for gathering broken bone piece, can not produce effective compressive stress at nearly articular surface position, influences therapeutic effect.The position of Kirschner wire, thickness are grasped improper and the inside-fixture rejection possibly cause operative failure, and the pin end also possibly rotate forward, and local excitation skin causes pain, and knee joint functional exercise is suffered from influence.
The hollow screw internal fixation, simple to operate, but then can't fix pulverizing and stratiform fracture.
Patella fracture fixator is according to the anatomy and the biomechanics characteristic design of patella, patellofemoral joint, and the waist that its pawl branch connects is positioned at the patella front surface, meets the tension band principle fully; Utilize the property of material itself and the features of shape of pawl branch, can be multi-direction, centration, vertically continue automatically to apply the polymerization plus-pressure to fracture end for advocating peace, thus make the reduction of the fracture and fixing; Therefore have concurrently and reset and fixed dual function, simple to operate, but only be suitable for transverse fracture; If patella claw is excessive, then blade tooth can stretch into the joint space, influences the activity in joint; And the damage articular cartilage, it is too small that kneecap can carry out knee joint merit bone pawl in early days, then can not fracture by fine control bag; Cause the slippage of fixed claw at last, operative failure.
The titanium alloy pawl, simple to operate, but only be suitable for transverse fracture, if patella claw is excessive; Then blade tooth can stretch into the joint space, influences the activity in joint, and the damage articular cartilage, and patella claw is too small; Then can not fracture by fine control bag, cause the slippage of fixed claw at last, operative failure.
No matter which kind of fixing means all has limitation, fixing unreliable, part needs external fixation, can not early ambulant.
Summary of the invention
The purpose of this invention is to provide a kind of adjustable " well " font memorial alloy patella steel plate, have simple in structure, operation easily, reduce damage and fixing reliable advantage.
The technical scheme that the present invention adopted is, a kind of adjustable " well " font memorial alloy patella steel plate comprises that two ends are hook-shaped memorial alloy sheet metal a, memorial alloy sheet metal b, memorial alloy sheet metal c and memorial alloy sheet metal d,
Memorial alloy sheet metal a is provided with slip slotted eye a and slip slotted eye b, and memorial alloy sheet metal a two ends are respectively arranged with screw hole a, screw hole b, screw hole c and screw hole d,
Memorial alloy sheet metal b, memorial alloy sheet metal c and memorial alloy sheet metal d and memorial alloy sheet metal a are the setting of " well " font, and have identical structure,
Memorial alloy sheet metal a, memorial alloy sheet metal b and memorial alloy sheet metal c, memorial alloy sheet metal d intersect in the position that the slip slotted eye is set between any two, fix through screw a, screw b, screw c and the screw d that is arranged on the intersection location.
Beneficial effect of the present invention, simple in structure, four memorial alloy sheet metals soak the back deliquescing with frozen water; Shaping, operation technique is easy, easy, effectively reduces damage; And it is consuming time few; No matter all can reach fine fixing to monoblock and pulverizing bone piece, do not need external fixation, well solved the difficult problem of clinician in this field for many years.
Description of drawings
Fig. 1 is the structural representation of the present invention's adjustable " well " font memorial alloy patella steel plate.
Fig. 2 is the postoperative front view of the present invention's adjustable " well " font memorial alloy patella steel plate.
Fig. 3 is the postoperative side view of the present invention's adjustable " well " font memorial alloy patella steel plate.
Among the figure, 1. memorial alloy sheet metal a, 2. memorial alloy sheet metal b, 3. memorial alloy sheet metal c, 4. memorial alloy sheet metal d; 5. slip slotted eye a, 6. slip slotted eye b, 7. screw hole a, 8. screw hole b, 9. screw hole c; 10. screw hole d, 11. screw a, 12. screw b, 13. screw c, 14. screw d.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is elaborated.
The structure of the present invention's adjustable " well " font memorial alloy patella steel plate, as shown in Figure 1, comprise that two ends are hook-shaped memorial alloy sheet metal a1, memorial alloy sheet metal b2, memorial alloy sheet metal c3 and memorial alloy sheet metal d4,
Memorial alloy sheet metal a1 is provided with slip slotted eye a5 and slip slotted eye b6, and memorial alloy sheet metal a1 two ends are respectively arranged with screw hole a7, screw hole b8, screw hole c9 and screw hole d10,
Memorial alloy sheet metal b2, memorial alloy sheet metal c3 and memorial alloy sheet metal d4 and memorial alloy sheet metal a1 are the setting of " well " font, and have identical structure,
Memorial alloy sheet metal a1, memorial alloy sheet metal b2 and memorial alloy sheet metal c3, memorial alloy sheet metal d4 intersect in the position that the slip slotted eye is set between any two, fix through screw a11, screw b12, screw c13 and the screw d14 that is arranged on the intersection location.
The operation principle of the present invention's adjustable " well " font memorial alloy patella steel plate does; As shown in Figures 2 and 3; Earlier memorial alloy sheet metal a1, memorial alloy sheet metal b2, memorial alloy sheet metal c3 and memorial alloy sheet metal d4 are soaked about 2min in 0～4 ℃ brine ice, make its deliquescing, moulding according to the degree of patella pulverizing again; Memorial alloy sheet metal a1, memorial alloy sheet metal b2, memorial alloy sheet metal c3 and memorial alloy sheet metal d4 are climbed on patella; With screw a11, screw b12, screw c13 and screw d14 memorial alloy sheet metal a1, memorial alloy sheet metal b2, memorial alloy sheet metal c3 and memorial alloy sheet metal d4 are interfixed in its sliding tray hole site, and be fixed in the patella surface, be " well " font; The two ends of buckle are moulding separately with memorial alloy sheet metal a1, memorial alloy sheet metal b2, memorial alloy sheet metal c3 and memorial alloy sheet metal d4 then; Docile in the patella edge, as to pulverize according to patella again degree is at memorial alloy sheet metal a1, memorial alloy sheet metal b2, memorial alloy sheet metal c3 and the memorial alloy sheet metal d4 fixing screw of right quantity on the screw hole at two ends separately; Reach the fixed purpose in side; 40～50 ℃ of hot salt brines of reuse are after 2min is kept in hot compress pressurization in affected part, and the memorial alloy sheet solidifies, and operation finishes.
Plastic type property of the present invention is strong, and is simple to operate, consuming time few, fixing reliable, no matter all can reach fine fixing to monoblock and pulverizing bone piece, and do not need external fixation.Well solved the difficult problem of clinician in this field for many years.
Claims (1)
1. adjustable " well " font memorial alloy patella steel plate is characterized in that, comprises that two ends are hook-shaped memorial alloy sheet metal a (1), memorial alloy sheet metal b (2), memorial alloy sheet metal c (3) and memorial alloy sheet metal d (4),
Described memorial alloy sheet metal a (1) is provided with slip slotted eye a (5) and slip slotted eye b (6), and memorial alloy sheet metal a (1) two ends are respectively arranged with screw hole a (7), screw hole b (8), screw hole c (9) and screw hole d (10),
Memorial alloy sheet metal b (2), memorial alloy sheet metal c (3) and memorial alloy sheet metal d (4) and memorial alloy sheet metal a (1) are the setting of " well " font, and have identical structure,
Memorial alloy sheet metal a (1), memorial alloy sheet metal b (2) and memorial alloy sheet metal c (3), memorial alloy sheet metal d (4) intersect in the position that the slip slotted eye is set between any two, and be fixing through screw a (11), screw b (12), screw c (13) and the screw d (14) that is arranged on the intersection location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102569738A CN102319110B (en) | 2011-09-01 | 2011-09-01 | Adjustable memory alloy patella steel plate in shape like Chinese character 'jing' |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102569738A CN102319110B (en) | 2011-09-01 | 2011-09-01 | Adjustable memory alloy patella steel plate in shape like Chinese character 'jing' |
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| Publication Number | Publication Date |
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| CN102319110A true CN102319110A (en) | 2012-01-18 |
| CN102319110B CN102319110B (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102569738A Active CN102319110B (en) | 2011-09-01 | 2011-09-01 | Adjustable memory alloy patella steel plate in shape like Chinese character 'jing' |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873260A (en) * | 2015-06-01 | 2015-09-02 | 江苏艾迪尔医疗科技股份有限公司 | Patella locking plate |
| CN107928776A (en) * | 2017-12-28 | 2018-04-20 | 江苏荷普医疗科技股份有限公司 | The universal bone plate of kneecap multiaxis |
| CN110226961A (en) * | 2019-07-09 | 2019-09-13 | 王海涛 | A kind of patellar fracture reparation kneecap metal plate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TR201723089A2 (en) * | 2017-12-29 | 2019-07-22 | Dokuz Eyluel Ueniversitesi Rektoerluegue | BROKEN PLATE USED IN TRANSVERS AND PARTIAL PATELLA FRACTURES |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020052568A1 (en) * | 2000-09-28 | 2002-05-02 | Houser Russell A. | Joint braces and traction devices incorporating superelastic supports |
| US20080294079A1 (en) * | 2007-05-22 | 2008-11-27 | Bellacure, Inc. | Orthotic apparatus and method of operation |
| CN201299637Y (en) * | 2008-11-28 | 2009-09-02 | 孙洪涛 | Adjustable patella claw |
| CN201879807U (en) * | 2010-07-07 | 2011-06-29 | 襄樊禾鼎机械有限公司 | Adjustable patella claw |
| CN202211744U (en) * | 2011-09-01 | 2012-05-09 | 张建林 | Adjustable 'groined' memory alloy patella steel plate |
-
2011
- 2011-09-01 CN CN2011102569738A patent/CN102319110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020052568A1 (en) * | 2000-09-28 | 2002-05-02 | Houser Russell A. | Joint braces and traction devices incorporating superelastic supports |
| US20080294079A1 (en) * | 2007-05-22 | 2008-11-27 | Bellacure, Inc. | Orthotic apparatus and method of operation |
| CN201299637Y (en) * | 2008-11-28 | 2009-09-02 | 孙洪涛 | Adjustable patella claw |
| CN201879807U (en) * | 2010-07-07 | 2011-06-29 | 襄樊禾鼎机械有限公司 | Adjustable patella claw |
| CN202211744U (en) * | 2011-09-01 | 2012-05-09 | 张建林 | Adjustable 'groined' memory alloy patella steel plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873260A (en) * | 2015-06-01 | 2015-09-02 | 江苏艾迪尔医疗科技股份有限公司 | Patella locking plate |
| CN107928776A (en) * | 2017-12-28 | 2018-04-20 | 江苏荷普医疗科技股份有限公司 | The universal bone plate of kneecap multiaxis |
| CN110226961A (en) * | 2019-07-09 | 2019-09-13 | 王海涛 | A kind of patellar fracture reparation kneecap metal plate |
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| Publication number | Publication date |
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| CN102319110B (en) | 2013-01-23 |
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