CN104758038B - A kind of assembly type memory alloy plate osteosynthesis - Google Patents

A kind of assembly type memory alloy plate osteosynthesis Download PDF

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Publication number
CN104758038B
CN104758038B CN201510164970.XA CN201510164970A CN104758038B CN 104758038 B CN104758038 B CN 104758038B CN 201510164970 A CN201510164970 A CN 201510164970A CN 104758038 B CN104758038 B CN 104758038B
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China
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arm
locating slot
position
arm plate
plate
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CN201510164970.XA
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Chinese (zh)
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CN104758038A (en
Inventor
赵全明
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赵全明
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Priority to CN201510164970.XA priority Critical patent/CN104758038B/en
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Publication of CN104758038B publication Critical patent/CN104758038B/en

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Abstract

The invention discloses a kind of assembly type memory alloy plate osteosynthesis, the synthetism mainboard and at least two for including a strip encircles arm, the locating slot of arm cooperation is formed and encircled in the width direction on described synthetism mainboard outer surface, the long side face of synthetism mainboard is located at the breach of the position formation indent of locating slot, the position that the both sides of locating slot both ends position form on the positioning plush copper protruding upward close to positioning groove edge, synthetism mainboard positioned at breach forms clamping plate;Medium position on synthetism mainboard positioned at locating slot forms inner splint, and inner splint lower surface forms fixed plush copper;Described arm of encircling is made up of a memorial alloy arm plate and a titanium alloy arm plate, and memorial alloy arm plate one end is the narrow trapezoidal connecting portion in the wide the inner in outer end, and trapezoidal connecting portion position is further opened with trapezoidal hole;Titanium alloy arm plate one end both sides form the chuck being matched for clamping tightly with two waists of trapezoidal connecting portion.Mounted configuration of the present invention is solid and reliable, convenient disassembly.

Description

A kind of assembly type memory alloy plate osteosynthesis

Technical field

The invention belongs to area of medical devices, and in particular to bone plate technical field of structures.

Background technology

Existing assembly type memory alloy plate osteosynthesis is mostly integral type structure, and multiple arms of encircling are integrally attached to a master On plate, bone plate cooling is first allowed to bent deformation when using, bone plate progressively recovers after being installed in place under body temperature effect Original state, it is easy to use, substantially reduce the time of fracture reduction operation.But this kind of bone plate overall volume is relatively large, takes Need to cut larger operative incision when going out bone plate, add patient suffering, in order to solve the problem, occur in that split type Assembly type memory alloy plate osteosynthesis, that is, encircle arm and separated with mainboard, be fixedly connected, so exist with mainboard after encircling arm recovery of shape Take out bone plate when can individually take out it is each encircle arm, operative incision is relatively much smaller, but encircles the connection of arm and mainboard Intensity is not high, easily produces displacement, and using effect is undesirable.

The content of the invention

The technical problems to be solved by the invention are:In view of the deficienciess of the prior art, providing a kind of rational in infrastructure, by force Spend reliable assembly type memory alloy plate osteosynthesis.

To realize the purpose of the present invention, it is achieved using following technical scheme:A kind of assembly type memory alloy plate osteosynthesis, The synthetism mainboard and at least two for including strip encircle on arm, described synthetism mainboard outer surface in the width direction into Type has and encircled the locating slot that arm coordinates, and the long side face of synthetism mainboard is located at the breach of the position formation indent of locating slot, fixed The both sides of position groove both ends position, which form to be located on the positioning plush copper protruding upward close to positioning groove edge, synthetism mainboard, to be lacked The position of mouth forms the external splint extended towards;Medium position on synthetism mainboard positioned at locating slot forms inner splint, interior The gap of a U-shaped is formed between clamping plate and synthetism mainboard, the two ends in U-shaped gap are extended to along synthetism main board length direction determines Outside the groove of position, inner splint lower surface forms fixed plush copper, and fixed plush copper is located at the center of locating slot;Described encircles arm It is made up of a memorial alloy arm plate and a titanium alloy arm plate, memorial alloy arm plate one end offers what is coordinated with fixed plush copper Circular port, the other end is the narrow trapezoidal connecting portion in the wide the inner in outer end, and trapezoidal connecting portion position is further opened with trapezoidal hole, memorial alloy Position on arm plate close to circular port and remote memorial alloy arm plate end forms one group of positioning hole;The titanium alloy arm plate one End offers the slotted eye coordinated with fixed plush copper, and the both sides of the other end are formed to be matched for clamping tightly with two waists of trapezoidal connecting portion Chuck, close to slotted eye and the position away from titanium alloy arm plate end forms at least two groups positioning on titanium alloy arm plate Hole;The inner surface of memorial alloy arm plate and titanium alloy the arm plate forms raised line.

Screw hole is also formed on synthetism mainboard;The thickness for encircling arm is the 2/3-3/4 of the depth of locating slot;It is 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.So restored in external splint Shi Buneng resets into initial position, and 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 It is not shifted in locating slot.

Compared with prior art, the beneficial effects of the invention are as follows:The synthetism mainboard of the present invention is by being molded locating slot, determining Position plush copper, external splint, inner splint, fixed plush copper multi-angle carry out spacing, fixed to encircling arm, make to encircle arm and are connected to synthetism master Configuration state is stable after plate, bonding strength no significant difference compared with encircling the intensity that arm is molded directly within synthetism mainboard.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention.

Fig. 2 is Fig. 1 A portions mplifying structure schematic diagram.

Fig. 3 is the structural representation of synthetism mainboard.

Fig. 4 is the structural representation for encircling arm.

1st, synthetism mainboard;11st, screw hole;12nd, external splint;13rd, plush copper is positioned;14th, locating slot;15th, inner splint;16th, it is solid Determine plush copper;2nd, arm is encircled;201st, circular port;202nd, slotted eye;203rd, positioning hole;204th, raised line;21st, memorial alloy arm plate; 211st, trapezoidal connecting portion;212nd, trapezoidal hole;22nd, titanium alloy arm plate;221st, chuck.

Embodiment

The embodiment of the present invention is made a detailed explanation below according to accompanying drawing.

Embodiment 1

According to Fig. 1 to Fig. 4, the present embodiment is a kind of assembly type memory alloy plate osteosynthesis, includes a strip Synthetism mainboard 1 and at least two encircle and form and encircle in the width direction arm on arm 2, described synthetism mainboard outer surface and match somebody with somebody The locating slot 14 of conjunction, the long side face of synthetism mainboard is located at the breach of the position formation indent of locating slot, locating slot two-end part The both sides put form the positioning plush copper 13 protruding upward close to positioning groove edge, be located on synthetism mainboard the position of breach into Type has the external splint 12 extended towards;Medium position on synthetism mainboard positioned at locating slot forms inner splint 15, inner splint with Form the gap of a U-shaped between synthetism mainboard, the two ends in U-shaped gap along synthetism main board length direction extend to locating slot it Outside, inner splint lower surface forms fixed plush copper 16, and fixed plush copper is located at the center of locating slot;Described encircles arm by one Individual memorial alloy arm plate 21 and a titanium alloy arm plate 22 are constituted, and memorial alloy arm plate one end offers what is coordinated with fixed plush copper Circular port 201, the other end is the narrow trapezoidal connecting portion 211 in the wide the inner in outer end, and trapezoidal connecting portion position is further opened with trapezoidal hole, remembers Recall the position on alloy arm plate close to circular port and remote memorial alloy arm plate end and form one group of positioning hole 203;The titanium Alloy arm plate one end offers the slotted eye 202 coordinated with fixed plush copper, and the both sides of the other end are formed and trapezoidal connecting portion The chuck 221 that is matched for clamping tightly of two waists, on titanium alloy arm plate close to slotted eye and the position away from titanium alloy arm plate end into Type has at least two groups positioning holes;The inner surface of memorial alloy arm plate and titanium alloy the arm plate forms raised line 204.

Described trapezoidal hole makes trapezoidal connecting portion position be easier to bend after the cooling of memorial alloy arm plate, trapezoidal connection Portion is heated has good elasticity again when restoring, trapezoidal connecting portion is due to wide outside and narrow inside, so that trapezoidal connecting portion and memory conjunction Relative motion is produced between golden arm plate, lasting pretightning force is produced.

Screw hole 11 is also formed on synthetism mainboard, being connected by screw with bone ensures that bone is obtained in the longitudinal direction Good fixation, coordinates the protection for encircling arm, can reach stable support, is especially suitable for bone breaking part both sides with longitudinal bone Situation about splitting.

The thickness for encircling arm is the 2/3-3/4 of the depth of locating slot;Put down with synthetism mainboard the external splint upper surface Together, the thickness of external splint is the 1/2-2/3 of clamping slot depth.Initial position so can not be reset into when external splint restores, outside The outer end of clamping plate produces a prestressing force to encircling arm all the time, makes to encircle arm to be closely adjacent to and is not shifted in locating slot.

In use, a hole is first at least respectively bored in bone breaking part both sides, position and two screws on synthetism mainboard in hole The position correspondence in hole, will then encircle arm and synthetism mainboard is cooled down, each external splint, inner splint are broken into two with one's hands, synthetism is put into Synthetism mainboard, is first fixed on bone, subsequent titanium alloy arm plate and memorial alloy arm plate, which is assembled into, to be encircled by mainboard using screw Arm simultaneously loads, and suitably bends the trapezoidal connecting portion end of memorial alloy arm plate during assembling, suitable position on adjustment titanium alloy arm plate The positioning hole put is snapped into the positioning plush copper of correspondence position, encircles after arm is all installed in place and synthetism mainboard to be carried out with warm saline Heating make external splint, inner splint recover original-shape, encircle arm i.e. with synthetism mainboard secure fit, so as to be consolidated to bone It is fixed.After bone plate is installed in place, trapezoidal connecting portion part gradually restPoses under body temperature effect, trapezoidal company Socket part is due to wide outside and narrow inside, so that relative motion is produced between trapezoidal connecting portion and memorial alloy arm plate, so that encircling arm Opposite bone is further clamped, and produces the pretightning force of sufficient intensity, and the fixing intensity to bone is higher.

Claims (1)

1. a kind of assembly type memory alloy plate osteosynthesis, the synthetism mainboard and at least two for including a strip encircles arm, its It is characterised by:The locating slot of arm cooperation, synthetism mainboard are formed and encircled in the width direction on described synthetism mainboard outer surface Long side face be located at the position of locating slot and form the breach of indent, the both sides of locating slot both ends position are formed close to positioning Position on the positioning plush copper protruding upward of groove edge, synthetism mainboard positioned at breach forms the external splint extended towards;Connect Medium position on bone mainboard positioned at locating slot forms inner splint, and the seam of a U-shaped is formed between inner splint and synthetism mainboard Gap, the two ends in U-shaped gap are extended to outside locating slot along synthetism main board length direction, and it is convex that inner splint lower surface forms fixation Head, fixed plush copper is located at the center of locating slot;Described encircles arm by a memorial alloy arm plate and a titanium alloy arm Plate is constituted, and memorial alloy arm plate one end offers the circular port coordinated with fixed plush copper, and the other end is the narrow ladder in the wide the inner in outer end Shape connecting portion, trapezoidal connecting portion position is further opened with trapezoidal hole, memorial alloy arm plate close to circular port and away from memorial alloy The position of arm plate end forms one group of positioning hole;Described titanium alloy arm plate one end offers the ellipse coordinated with fixed plush copper Hole, the both sides of the other end are formed on the chuck being matched for clamping tightly with two waists of trapezoidal connecting portion, titanium alloy arm plate close to ellipse The position of hole and remote titanium alloy arm plate end forms at least two groups positioning holes;Memorial alloy arm plate and titanium alloy the arm plate Inner surface form raised line;Screw hole is also formed on the synthetism mainboard;The thickness for encircling arm is locating slot The 2/3-3/4 of depth;The external splint upper surface is concordant with synthetism mainboard, and the thickness of external splint is the 1/2-2/ of clamping slot depth 3。
CN201510164970.XA 2015-04-08 2015-04-08 A kind of assembly type memory alloy plate osteosynthesis CN104758038B (en)

Priority Applications (1)

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CN201510164970.XA CN104758038B (en) 2015-04-08 2015-04-08 A kind of assembly type memory alloy plate osteosynthesis

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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

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CN104758038A CN104758038A (en) 2015-07-08
CN104758038B true CN104758038B (en) 2017-09-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107320170A (en) * 2015-12-24 2017-11-07 李峰 Memory alloy plate osteosynthesis

Citations (3)

* Cited by examiner, † Cited by third party
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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090198286A1 (en) * 2008-02-05 2009-08-06 Zimmer, Inc. Bone fracture fixation system

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
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

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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