CN104758038A - Assembled type memory alloy bone fracture fixation plate - Google Patents
Assembled type memory alloy bone fracture fixation plate Download PDFInfo
- Publication number
- CN104758038A CN104758038A CN201510164970.XA CN201510164970A CN104758038A CN 104758038 A CN104758038 A CN 104758038A CN 201510164970 A CN201510164970 A CN 201510164970A CN 104758038 A CN104758038 A CN 104758038A
- Authority
- CN
- China
- Prior art keywords
- plate
- arm plate
- arm
- bone fracture
- locating slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
-
- 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
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
-
- 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
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
Abstract
The invention discloses an assembled type memory alloy bone fracture fixation plate. The assembled type memory alloy bone fracture fixation plate comprises a long-strip-shaped bone fracture fixation main plate and at least two surrounding arms, wherein positioning grooves matched with the surrounding arms are formed in the outer surface of the bone fracture fixation main plate along the width direction; an inward concave notch is formed in the position, located on the positioning grooves, of the side surface of a long edge of the bone fracture fixation main plate; upward convex positioning convex heads, which are close to the edges of the positioning grooves, are formed in the two sides of the positions of the two end parts of the positioning grooves; a clamping plate is formed in the bone fracture fixation main plate at the position of the notch; an inner clamping plate is formed on the bone fracture fixation main plate and located in the middle positions of the positioning grooves; a fixed convex head is formed on the lower surface of the inner clamping plates; each surrounding arm is composed of a memory alloy arm plate and a titanium alloy arm plate; one end of the memory alloy arm plate is a trapezoid connection part with a wide outer end and a narrow inner end; a trapezoid hole is formed in the trapezoid connection part; chucks which are matched and clamped with two sides of the trapezoid connection part are formed on the two sides of one end of the titanium alloy arm plate. The assembled type memory alloy bone fracture fixation plate has a firm and reliable structure after being mounted and is convenient to detach.
Description
Technical field
The invention belongs to area of medical devices, be specifically related to blade plate technical field of structures.
Background technology
Existing assembled memory alloy plate osteosynthesis is mostly integral type structure, multiple arm of encircling integrally is connected on a mainboard, first blade plate cooling is made it bent distortion during use, progressively restPose under body temperature effect after blade plate is in place, easy to use, substantially reduce the time of fracture reduction operation.But this kind of blade plate overall volume is relatively large, need to cut larger operative incision when taking out blade plate, add patient suffering, in order to solve this problem, there is split type assembled memory alloy plate osteosynthesis, namely encircle arm to be separated with mainboard, be fixedly connected with mainboard after encircling arm recovery of shape, can take out separately when taking out blade plate like this and eachly encircle arm, operative incision is relatively much little, but the bonding strength encircling arm and mainboard is not high, and easily produce displacement, result of use is undesirable.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency existed for prior art, provides a kind of rational in infrastructure, the reliable assembled memory alloy plate osteosynthesis of intensity.
For realizing the object of the present invention, be achieved by the following technical solutions: a kind of assembled memory alloy plate osteosynthesis, include the synthetism mainboard of a strip and at least two encircle arm, described synthetism mainboard outer surface forms in the width direction and the locating slot encircled arm and coordinate, the long side face of synthetism mainboard is positioned at the breach of the position formation indent of locating slot, the both sides of position, locating slot both ends form the location plush copper protruding upward near locating slot edge, and position synthetism mainboard being positioned at breach forms the external splint extended in opposite directions; Medium position synthetism mainboard being positioned at locating slot forms inner splint, the gap of a U-shaped is formed between inner splint and synthetism mainboard, the two ends in U-shaped gap extend to outside locating slot along synthetism main board length direction, inner splint lower surface forms fixing plush copper, and fixing plush copper is positioned at the center of locating slot; Described arm of encircling is made up of a memorial alloy arm plate and a titanium alloy arm plate, memorial alloy arm plate one end offers the circular port coordinated with fixing plush copper, the other end is the narrow trapezoidal connecting portion in wide the inner, outer end, trapezoidal connecting portion position also offers trapezoidal hole, and the position near circular port and away from memorial alloy arm plate end on memorial alloy arm plate forms one group of locating hole; Described titanium alloy arm plate one end offers the slotted eye coordinated with fixing plush copper, the both sides of the other end form and coordinate with two waists of trapezoidal connecting portion the chuck clamped, and the position near slotted eye and away from titanium alloy arm plate end on titanium alloy arm plate forms at least two group locating holes; The inner surface of described memorial alloy arm plate and titanium alloy arm plate all forms raised line.
Synthetism mainboard also forms screw hole; The described thickness encircling arm is the 2/3-3/4 of the degree of depth of locating slot; Described external splint upper surface is concordant with synthetism mainboard, and the thickness of external splint is the 1/2-2/3 of clamping slot depth.Can not reset into initial position when external splint restores like this, the outer end of external splint produces a prestressing force to encircling arm all the time, makes to encircle arm and is closely adjacent to and is not shifted in locating slot.
Compared with prior art, the invention has the beneficial effects as follows: synthetism mainboard of the present invention carries out spacing, fixing by molding locating slot, location plush copper, external splint, inner splint, fixing plush copper multi-angle to encircling arm, make to encircle configuration state after arm is connected to synthetism mainboard to stablize, bonding strength with encircle no significant difference compared with intensity that arm is molded directly within synthetism mainboard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1.
Fig. 3 is the structural representation of synthetism mainboard.
Fig. 4 is the structural representation encircling arm.
1, synthetism mainboard; 11, screw hole; 12, external splint; 13, plush copper is located; 14, locating slot; 15, inner splint; 16, fixing plush copper; 2, arm is encircled; 201, circular port; 202, slotted eye; 203, locating hole; 204, raised line; 21, memorial alloy arm plate; 211, trapezoidal connecting portion; 212, trapezoidal hole; 22, titanium alloy arm plate; 221, chuck.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
Embodiment 1.
According to shown in Fig. 1 to Fig. 4, the present embodiment is a kind of assembled memory alloy plate osteosynthesis, include the synthetism mainboard 1 of a strip and at least two encircle arm 2, described synthetism mainboard outer surface forms in the width direction and the locating slot 14 encircled arm and coordinate, the long side face of synthetism mainboard is positioned at the breach of the position formation indent of locating slot, the both sides of position, locating slot both ends form the location plush copper 13 protruding upward near locating slot edge, and position synthetism mainboard being positioned at breach forms the external splint 12 extended in opposite directions; Medium position synthetism mainboard being positioned at locating slot forms inner splint 15, the gap of a U-shaped is formed between inner splint and synthetism mainboard, the two ends in U-shaped gap extend to outside locating slot along synthetism main board length direction, inner splint lower surface forms fixing plush copper 16, and fixing plush copper is positioned at the center of locating slot; Described arm of encircling is made up of a memorial alloy arm plate 21 and a titanium alloy arm plate 22, memorial alloy arm plate one end offers the circular port 201 coordinated with fixing plush copper, the other end is the narrow trapezoidal connecting portion 211 in wide the inner, outer end, trapezoidal connecting portion position also offers trapezoidal hole, and the position near circular port and away from memorial alloy arm plate end on memorial alloy arm plate forms one group of locating hole 203; Described titanium alloy arm plate one end offers the slotted eye 202 coordinated with fixing plush copper, the both sides of the other end form and coordinate with two waists of trapezoidal connecting portion the chuck 221 clamped, and the position near slotted eye and away from titanium alloy arm plate end on titanium alloy arm plate forms at least two group locating holes; The inner surface of described memorial alloy arm plate and titanium alloy arm plate all forms raised line 204.
Described trapezoidal hole makes trapezoidal connecting portion position more easily bend after the cooling of memorial alloy arm plate, trapezoidal connecting portion is heated when restoring and has again good elasticity, trapezoidal connecting portion is due to wide outside and narrow inside, thus make to produce relative motion between trapezoidal connecting portion and memorial alloy arm plate, produce lasting pretightning force.
Synthetism mainboard also forms screw hole 11, to be connected with bone by screw that to guarantee that bone obtains in the longitudinal direction good fixing, coordinate the protection of encircling arm, stable support can be reached, be especially applicable to the situation of bone breaking part both sides with longitudinal bone splits.
The described thickness encircling arm is the 2/3-3/4 of the degree of depth of locating slot; Described external splint upper surface is concordant with synthetism mainboard, and the thickness of external splint is the 1/2-2/3 of clamping slot depth.Can not reset into initial position when external splint restores like this, the outer end of external splint produces a prestressing force to encircling arm all the time, makes to encircle arm and is closely adjacent to and is not shifted in locating slot.
During use, first at least individual brill hole, bone breaking part both sides, the position in hole is corresponding with the position of two screw holes on synthetism mainboard, then arm will be encircled and synthetism mainboard cools, by each external splint, inner splint is broken into two with one's hands, put into synthetism mainboard, screw is first used to be fixed on bone by synthetism mainboard, titanium alloy arm plate and memorial alloy arm plate are assembled into and encircle arm and load subsequently, during assembling, the trapezoidal connecting portion end of memorial alloy arm plate is suitably bent, locating hole on adjustment titanium alloy arm plate on correct position snaps in the location plush copper of correspondence position, encircle and with warm saline, heating is carried out to synthetism mainboard after arm is all in place and make external splint, inner splint recovers original-shape, encircle arm namely with synthetism mainboard secure fit, thus bone is fixed.After blade plate is in place, trapezoidal connecting portion part restPoses gradually under body temperature effect, trapezoidal connecting portion is due to wide outside and narrow inside, thus make to produce relative motion between trapezoidal connecting portion and memorial alloy arm plate, thus make to encircle arm opposite bone and clamp further, produce the pretightning force of sufficient intensity, higher to the constant intensity of bone.
Claims (1)
1. an assembled memory alloy plate osteosynthesis, include the synthetism mainboard of a strip and at least two encircle arm, it is characterized in that: described synthetism mainboard outer surface forms in the width direction and the locating slot encircled arm and coordinate, the long side face of synthetism mainboard is positioned at the breach of the position formation indent of locating slot, the both sides of position, locating slot both ends form the location plush copper protruding upward near locating slot edge, and position synthetism mainboard being positioned at breach forms the external splint extended in opposite directions; Medium position synthetism mainboard being positioned at locating slot forms inner splint, the gap of a U-shaped is formed between inner splint and synthetism mainboard, the two ends in U-shaped gap extend to outside locating slot along synthetism main board length direction, inner splint lower surface forms fixing plush copper, and fixing plush copper is positioned at the center of locating slot; Described arm of encircling is made up of a memorial alloy arm plate and a titanium alloy arm plate, memorial alloy arm plate one end offers the circular port coordinated with fixing plush copper, the other end is the narrow trapezoidal connecting portion in wide the inner, outer end, trapezoidal connecting portion position also offers trapezoidal hole, and the position near circular port and away from memorial alloy arm plate end on memorial alloy arm plate forms one group of locating hole; Described titanium alloy arm plate one end offers the slotted eye coordinated with fixing plush copper, the both sides of the other end form and coordinate with two waists of trapezoidal connecting portion the chuck clamped, and the position near slotted eye and away from titanium alloy arm plate end on titanium alloy arm plate forms at least two group locating holes; The inner surface of described memorial alloy arm plate and titanium alloy arm plate all forms raised line; Described synthetism mainboard also forms screw hole; The described thickness encircling arm is the 2/3-3/4 of the degree of depth of locating slot; Described external splint upper surface is concordant with synthetism mainboard, and the thickness of external splint is the 1/2-2/3 of clamping slot depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164970.XA CN104758038B (en) | 2015-04-08 | 2015-04-08 | A kind of assembly type memory alloy plate osteosynthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164970.XA CN104758038B (en) | 2015-04-08 | 2015-04-08 | A kind of assembly type memory alloy plate osteosynthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104758038A true CN104758038A (en) | 2015-07-08 |
| CN104758038B CN104758038B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510164970.XA Active CN104758038B (en) | 2015-04-08 | 2015-04-08 | A kind of assembly type memory alloy plate osteosynthesis |
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| CN (1) | CN104758038B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518939A (en) * | 2015-12-24 | 2017-12-29 | 李峰 | A kind of memory alloy plate osteosynthesis |
| CN112856925A (en) * | 2021-01-23 | 2021-05-28 | 江苏弘扩信息科技有限公司 | Cooling equipment for fried food processing and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257913B (en) * | 1991-06-14 | 1995-08-09 | Woo Shin Cho | Wiring bone plate for internal fixation of fracture |
| US20090198286A1 (en) * | 2008-02-05 | 2009-08-06 | Zimmer, Inc. | Bone fracture fixation system |
| CN201379638Y (en) * | 2009-04-17 | 2010-01-13 | 宝鸡市三立有色金属有限责任公司 | Shape-memory alloy circumferential bone plate |
| CN103494637A (en) * | 2013-08-30 | 2014-01-08 | 浙江省中医院 | Clipping and locking bone fracture plate |
-
2015
- 2015-04-08 CN CN201510164970.XA patent/CN104758038B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2257913B (en) * | 1991-06-14 | 1995-08-09 | Woo Shin Cho | Wiring bone plate for internal fixation of fracture |
| US20090198286A1 (en) * | 2008-02-05 | 2009-08-06 | Zimmer, Inc. | Bone fracture fixation system |
| CN201379638Y (en) * | 2009-04-17 | 2010-01-13 | 宝鸡市三立有色金属有限责任公司 | Shape-memory alloy circumferential bone plate |
| CN103494637A (en) * | 2013-08-30 | 2014-01-08 | 浙江省中医院 | Clipping and locking bone fracture plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518939A (en) * | 2015-12-24 | 2017-12-29 | 李峰 | A kind of memory alloy plate osteosynthesis |
| CN112856925A (en) * | 2021-01-23 | 2021-05-28 | 江苏弘扩信息科技有限公司 | Cooling equipment for fried food processing and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104758038B (en) | 2017-09-26 |
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Effective date of registration: 20180702 Address after: 215625 Jinjiang Fengzhen venture Road, Zhangjiagang City, Suzhou, Jiangsu Patentee after: SUZHOU YOUBEITE MEDICAL DEVICES CO., LTD. Address before: 214000 Qingyang Road 299, Nanchang District, Wuxi, Jiangsu Patentee before: Zhao Quanming |