CN105411659B - A kind of external fixator for orthopedics dep - Google Patents

A kind of external fixator for orthopedics dep Download PDF

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Publication number
CN105411659B
CN105411659B CN201510895686.XA CN201510895686A CN105411659B CN 105411659 B CN105411659 B CN 105411659B CN 201510895686 A CN201510895686 A CN 201510895686A CN 105411659 B CN105411659 B CN 105411659B
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China
Prior art keywords
provided
bulb
hole
nail
shaped folder
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Application number
CN201510895686.XA
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Chinese (zh)
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CN105411659A (en
Inventor
韩庆斌
徐留海
李素玉
张道鑫
曾勇
董璐
孙德修
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山东航维骨科医疗器械股份有限公司
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Priority to CN201510895686.XA priority Critical patent/CN105411659B/en
Publication of CN105411659A publication Critical patent/CN105411659A/en
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Publication of CN105411659B publication Critical patent/CN105411659B/en

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Abstract

A kind of external fixator for orthopedics dep of the present invention, including support bar, nail rod clamp system and nail, nail rod clamp system are provided with array, and every group is mainly made up of U-shaped folder I, bulb handle, bolt.Bulb handle one end is provided with bulb, centre is provided with neck, the other end is provided with taper thread hole, taper thread hole is used to install nail, U-shaped folder I two sides tip inside is provided with ball-and-socket, bulb is placed in ball-and-socket, bulb is provided with endoporus, endoporus is made up of two taper holes, it is outside that the osculum of two taper holes docks big mouth, U-shaped folder I has elasticity, its bottom is set to semi-circular thin-walled, and extended internally out two boss along its Inner arc, for embracing support bar, ball-and-socket side is provided with screwed hole, opposite side is provided with unthreaded hole, screw bolt passes unthreaded hole and endoporus are simultaneously threaded onto on screwed hole, during bolt is screwed, semi-circular thin-walled deforms clamp support bar first, then the two side of U-shaped folder I is deformed clamping bulb again, make operation easier, clamping force is bigger, locking is more reliable.

Description

A kind of external fixator for orthopedics dep

Technical field

The present invention relates to orthopedic medical device field, especially a kind of external fixator for orthopedics dep.

Background technology

Existing external fixator for orthopedics dep, the single-side universal orthopedic external fixator as disclosed in the patent No. 98221136.8, its Basic structure includes support bar, bulb handle and for connection support bar and the fixture block of bulb handle, and is fixed on bulb handle one end Nail.Every two fixture block is one group, and one end of every group of fixture block is clipped on support bar, and the other end is clipped on the bulb of bulb handle, in Between be bolted fastening two fixture blocks.After fixing the bone nail of fracture site both sides and bulb handle during operation, then fit After when the position of each fixture block on regulation support bar and bulb handle and support bar fastenings, so that it may realize fracture site both sides bone Replacement and fixation.Although the external fixator for orthopedics dep of said structure is using more convenient, every two pieces of fixture block is one group, is assembled more multiple It is miscellaneous and not big enough to the clamping force of bulb.

The content of the invention

The invention discloses a kind of external fixator for orthopedics dep, drawbacks described above is overcome.It mainly includes that support bar, nail rod are clamped Mechanism and nail, the nail rod clamp system are provided with array, and every group is mainly made up of U-shaped folder I, bulb handle, bolt.The nail Rear end is provided with taper thread ailhead, and front end is provided with bone thread nail rod, and described bulb handle one end is provided with bulb, and centre is provided with neck, another End is provided with the taper thread hole of insertion side, and the taper thread hole is used to install the nail, and the U-shaped folder I is provided with two side, two Side wall ends inner side is provided with ball-and-socket, and the ball-and-socket inner face distance is more than the radial direction full-size of the neck, and the bulb is placed in In the ball-and-socket, and the bulb handle multi-direction can swing, it is characterised in that:The bulb is provided with and the taper thread hole Endoporus in the same direction, the endoporus is made up of two taper holes, and osculum docking, the big mouth of two taper hole are outwards and reverse each other, the U Type folder I has elasticity, and its bottom is set to semi-circular thin-walled, and two boss are extended at two ends along its Inner arc respectively inwards, use In embracing the support bar, the ball-and-socket side is provided with the screwed hole of insertion, and opposite side is provided with the unthreaded hole of insertion, the bolt according to It is secondary through the unthreaded hole and the endoporus and to be threaded onto on the screwed hole, it is described semi-circular during the bolt is screwed There is elastic deformation and clamp the support bar in thin-walled, then the two side of U-shaped folder I produces elastic deformation to press from both sides bulb again first Tightly.The expansion in order that hunting range of the bulb handle is tried one's best, the ball-and-socket outward flange is provided with chamfering.

As a further improvement, a kind of external fixator for orthopedics dep of the invention increased on the basis of the first implementation method Compound nail rod clamp system and composite support strut, the compound nail rod clamp system are main by U-shaped folder II, bulb handle, peach-shaped hole Bolt, packing ring and nut composition, the U-shaped folder II is, by the screwed hole of the side wall of the U-shaped folder I, to be changed to and opposite side Wall identical unthreaded hole, one end of the packing ring is provided with V-groove, and the front end of the bar portion of peach-shaped hole bolt is provided with screw rod, bolt Head is provided with the peach-shaped hole of insertion side wall, and the composite support strut is placed in the peach-shaped hole, and the screw rod sequentially passes through the pad Circle, the endoporus of unthreaded hole and the bulb simultaneously screw on the nut, the V-groove bandit on the composite support strut, screwing During stating nut, there is elastic deformation and clamp the support bar in the semi-circular thin-walled of U-shaped folder II, then the U first The two side of type folder II produces elastic deformation to clamp bulb again, while peach-shaped hole coordinates composite support strut with the V-groove Clamp.The composite support strut is provided with nail rod clamp system and the nail, and the nail fixes bone from the other direction of bone Bone, forms with the nail being fixed on support bar and intersects compound fixed structure

A kind of external fixator for orthopedics dep of the present invention, simple structure is easy to operate, using bolt directly through in ball-and-socket and bulb The method in hole clamps bulb, and clamping force is bigger, and locking is more reliable, and by a screwing bolts or the structure side of nut Formula, while locking support bar and fixed handle and composite support strut, make operation faster, can shorten operating time.

Brief description of the drawings

Fig. 1 is a kind of the first implementation method schematic diagram of external fixator for orthopedics dep of the invention;

Fig. 2 is the structural representation of U-shaped folder I in Fig. 1;

Fig. 3 is the structural representation of bulb handle in Fig. 1;

Fig. 4 is the sectional view of Fig. 3;

Fig. 5 is a kind of second implementation method schematic diagram of external fixator for orthopedics dep of the invention;

Fig. 6 is the structural representation of U-shaped folder II in Fig. 5;

Fig. 7 is the structural representation of peach-shaped hole bolt in Fig. 5;

Fig. 8 is the structural representation of Fig. 5 middle washers.

In accompanying drawing:1 support bar, 2 nail rod clamp systems, 3 nails, 4 compound nail rod clamp systems, 5 composite support struts, 21U Type folder I, 22 bulb handles, 23 bolts, 211 ball-and-sockets, 212 chamferings, 213,413 semi-circular thin-walleds, 214 boss, 215 screwed holes, 216th, 416 unthreaded hole, 217,417 side walls, 221 bulbs, 222 necks, 223 taper thread holes, 224 endoporus, 41U types folder II, 42 peach-shaped holes Bolt, 43 packing rings, 44 nuts, 421 peach-shaped holes, 431V type grooves.

Specific embodiment

Two kinds of implementation methods to a kind of external fixator for orthopedics dep of the invention elaborate below in conjunction with the accompanying drawings.

Fig. 1 to Fig. 4 shows a kind of the first implementation method of external fixator for orthopedics dep of the invention, and it mainly includes support bar 1st, nail rod clamp system 2 and nail 3, the nail rod clamp system 2 are provided with array, and every group main by U-shaped folder I 21, bulb handle 22nd, bolt 23 is constituted, and the rear end of the nail 3 is provided with taper thread ailhead, and front end is provided with bone thread nail rod, described one end of bulb handle 22 Bulb 221 is provided with, centre is provided with neck 222, and the other end is provided with the taper thread hole 223 of insertion side, and the taper thread hole 223 is used for The nail 3 is installed, the U-shaped folder I 21 is provided with two side 217, and the tip inside of two side 217 is provided with ball-and-socket 211, the ball The inner face of nest 211 distance is more than the radial direction full-size of the neck 222, and the bulb 221 is placed in the ball-and-socket 211, and The bulb handle 22 multi-direction can swing, it is characterised in that:The bulb 221 is provided with the same direction with the taper thread hole 223 Endoporus 224, the endoporus 224 is made up of two taper holes, and osculum docking, the big mouth of two taper hole are outwards and reverse each other, the U Type folder I 21 has elasticity, and its bottom is set to semi-circular thin-walled 213, and to extend two respectively inwards convex along the two ends of its Inner arc Platform 214, for embracing the support bar 1, the side of the ball-and-socket 211 is provided with the screwed hole 215 of insertion, and opposite side is provided with insertion Unthreaded hole 216, the bolt 23 sequentially passes through the unthreaded hole 216 and the endoporus 224 and is threaded onto on the screwed hole 215, in institute State during bolt 23 screws, the semi-circular thin-walled 213 occurs elastic deformation and clamps the support bar 1 first, then U Type folder I 21 two sides 217 produce elastic deformation to clamp bulb 221 again.In order that the hunting range of the bulb handle 22 is tried one's best Expand, the outward flange of the ball-and-socket 211 is provided with chamfering 212.

Fig. 3 to Fig. 8 shows a kind of second implementation method of external fixator for orthopedics dep of the invention, and the external fixator for orthopedics dep is Improvement to the first implementation method, its primary structure is to increased compound nail rod on the basis of the first implementation method to clamp Mechanism 4 and composite support strut 5, the compound nail rod clamp system 4 are main by U-shaped folder II41, bulb handle 22, peach-shaped hole bolt 42nd, packing ring 43 and nut 44 are constituted, and the U-shaped folder II 41 is, by the screwed hole 215 of the side wall of the U-shaped folder I 21, to change It is to be provided with V-groove 431, the bar portion of peach-shaped hole bolt 42 with opposite side wall identical unthreaded hole 416, one end of the packing ring 43 Front end be provided with screw rod, its head is provided with the peach-shaped hole 421 of insertion side wall, and the composite support strut 5 is placed in the peach-shaped hole 421 Interior, the screw rod sequentially passes through the endoporus 224 of the packing ring 43, unthreaded hole 416 and the bulb 221 and screws on the nut 44, , on the composite support strut 5, during the nut 44 is screwed, U-shaped folder II's is semi-circular thin for the bandit of the V-groove 435 There is elastic deformation and clamp the support bar 1 in wall 413, then the U-shaped folder II41 two sides 417 produce elastic deformation first Bulb 221 is clamped, while peach-shaped hole 421 coordinates with the V-groove 431 clamping composite support strut 5.The composite support strut 5 are provided with nail rod clamp system 2 and the nail 3, and the nail 3 and is fixed on support from the other direction fix bone of bone Nail 3 on bar 1 is formed and intersects compound fixed structure.

Claims (3)

1. a kind of external fixator for orthopedics dep, mainly including support bar (1), nail rod clamp system (2) and nail (3), the nail rod folder Tight mechanism (2) is provided with array, and every group is mainly made up of U-shaped folder I (21), bulb handle (22), bolt (23), after the nail (3) End is provided with taper thread ailhead, and front end is provided with bone thread nail rod, and described bulb handle (22) one end is provided with bulb (221), and centre is provided with Neck (222), the other end is provided with the taper thread hole (223) of insertion side, and the taper thread hole (223) is for installing the nail (3), U-shaped folder I (21) is provided with two side (217), and two side (217) tip inside is provided with ball-and-socket (211), the bulb (221) it is placed in the ball-and-socket (211), and the bulb handle (22) multi-direction can swing, it is characterised in that:The bulb (221) endoporus (224) in the same direction with the taper thread hole (223) is provided with, the endoporus (224) is made up of two taper holes, described two Osculum docking, the big mouth of taper hole are outwards and reverse each other, and with elasticity, its bottom is set to semi-circular thin-walled to U-shaped folder I (21) (213) two boss (214) are extended at the two ends, and along its Inner arc respectively inwards, described for embracing the support bar (1) Ball-and-socket (211) side is provided with the screwed hole (215) of insertion, and opposite side is provided with the unthreaded hole (216) of insertion, and the bolt (23) is successively Through the unthreaded hole (216) and the endoporus (224) and it is threaded onto on the screwed hole (215), is screwed in the bolt (23) During, there is elastic deformation and clamp the support bar (1) in the semi-circular thin-walled (213), then U-shaped folder I (21) first Two side (217) produce again elastic deformation by bulb (221) clamp.
2. a kind of external fixator for orthopedics dep according to claim 1, it is characterised in that:The external fixator for orthopedics dep also includes compound nail Bar clamp system (4) and composite support strut (5), the compound nail rod clamp system (4) are main by U-shaped folder II (41), bulb handle (22), peach-shaped hole bolt (42), packing ring (43) and nut (44) composition, U-shaped folder II (41) is by the U-shaped folder I (21) screwed hole (215) of side wall, is changed to be set with opposite side wall identical unthreaded hole (416), one end of the packing ring (43) The front end for having V-groove (431), the bar portion in peach-shaped hole bolt (42) is provided with screw rod, and bolt head is provided with the peach-shaped of insertion side wall Hole (421), the composite support strut (5) is placed in the peach-shaped hole (421), the screw rod sequentially pass through the packing ring (43), The endoporus (224) of unthreaded hole (416) and the bulb (221) simultaneously screws on the nut (44), and V-groove (431) bandit is in described On composite support strut (5), during the nut (44) is screwed, the semi-circular thin-walled (413) of U-shaped folder II (41) is sent out first Raw elastic deformation clamps the support bar (1), and then the two side (417) of U-shaped folder II (41) produces elastic deformation again Bulb (221) is clamped, while peach-shaped hole (421) coordinate with the V-groove (431) clamp composite support strut (5), it is described multiple Close support bar (5) and be provided with nail rod clamp system (2) and the nail (3), the nail (3) fixes bone from the other direction of bone Bone, forms with the nail (3) being fixed on support bar (1) and intersects compound fixed structure.
3. a kind of external fixator for orthopedics dep according to claim 1 and 2, it is characterised in that:Ball-and-socket (211) outward flange sets There is chamfering (212).
CN201510895686.XA 2015-12-03 2015-12-03 A kind of external fixator for orthopedics dep CN105411659B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510895686.XA CN105411659B (en) 2015-12-03 2015-12-03 A kind of external fixator for orthopedics dep

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510895686.XA CN105411659B (en) 2015-12-03 2015-12-03 A kind of external fixator for orthopedics dep

Publications (2)

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CN105411659A CN105411659A (en) 2016-03-23
CN105411659B true CN105411659B (en) 2017-07-07

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Publication number Priority date Publication date Assignee Title
US5683389A (en) * 1994-12-05 1997-11-04 Smith & Nephew, Inc. External fixator for distal radius fractures
CN2322564Y (en) * 1998-03-02 1999-06-09 孙德修 Single-side universal orthopedic external fixator
IT1307909B1 (en) * 1999-01-21 2001-11-29 Medicalplastic S R L External fixation for orthopedics and traumatology.
CN2394588Y (en) * 1999-11-25 2000-09-06 高涛 One side bone outside fixing frame
CN2469897Y (en) * 2001-03-19 2002-01-09 高涛 Nail-locking device for bone external-fixing rack
CN2497731Y (en) * 2001-10-23 2002-07-03 孙德修 Pin locking device for external fixer of orthopedics
US20140180338A1 (en) * 2007-01-10 2014-06-26 Globus Medical, Inc System and Method for Bone Anchorage
EP1857064A1 (en) * 2006-05-15 2007-11-21 Biomet Spain Orthopaedics S.L. Surgical screw system
CN201085679Y (en) * 2007-09-28 2008-07-16 陈唯宁 Fastening type vertebral column nail and stick fixing nail
CN201168024Y (en) * 2008-04-01 2008-12-24 贾新路 Reset type fracture external fixing rack
CN103919593B (en) * 2013-01-11 2016-01-06 付备刚 A femoral distraction reduction and its Applications
CN205307071U (en) * 2015-12-03 2016-06-15 山东航维骨科医疗器械股份有限公司 Orthopaedic external fixing frame

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