CN103445843B - Knee-joint activity and inertia-combined adjusting control outer fixer - Google Patents
Knee-joint activity and inertia-combined adjusting control outer fixer Download PDFInfo
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- CN103445843B CN103445843B CN201310400953.2A CN201310400953A CN103445843B CN 103445843 B CN103445843 B CN 103445843B CN 201310400953 A CN201310400953 A CN 201310400953A CN 103445843 B CN103445843 B CN 103445843B
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Abstract
A knee-joint activity and inertia-combined adjusting control outer fixer comprises an upper C-shaped hole ring arranged at a thighbone far end, and a lower C-shaped hole ring arranged at a tibia near end; the upper C-shaped hole ring is upwards connected with two upper tubular connection rods by a T-shaped connection plate; two dual-groove steel needle fixing clamps are fixed on the two upper tubular connection rods; point ends of two thread semi-needles are fixed on a femoral shaft; an arc arch is connected between the upper C-shaped hole ring and the upper tubular connection rods; the tail ends of the thread semi-needles are fixed with a single-groove steel needle fixing clamp on the arc arch; the point ends of the thread semi-needles are fixed on the femoral shaft. The upper C-shaped hole ring and the lower C-shaped hole ring are connected by a knee elbow joint device. The knee-joint activity and inertia-combined adjusting control outer fixer is firm in static fixing and balanced in dynamic fixing, can adjust and control the kneel joint gap, can promote the fracture healing and reduce or avoid the stiffness of the knee joint and is an advanced and excellent treatment method for the knee joint fracture, particularly the severe comminuted fracture.
Description
Technical field
The present invention relates to a kind of knee joint exter-nal fixer.
Background technology
In recent years, along with the improvement of the conception replacing of bone extenal fixation, technical perfection and appliance function, bone External fixation knee joint function disorder also obtains new breakthrough.While simplifying the operation and improving curative effect, for complexity knee joint function disorder, particularly serious splintered fracture and the existing fractures infected provide new selection.
The theory of bone External fixation knee joint function disorder is that stage static state is fixed and the Therapeutic Principle that dynamically fixing, drawing-off is fixed and locally fixed, fractures combines with use suffering limb.Static state as early implementation trans-articular is fixed with and is beneficial to repair in trauma and blood for rebuilding; Carry out dynamic drawing-off mid-term and be fixed with the break-in and joint nutrition that are beneficial to articular cartilage, reduce the generation of the complication such as ankylosis; In conjunction with the simple internal fixtion such as cancellous bone screw, Kirschner wire or to add local such as wearing extenal fixation draw point fixing between folded block, the anatomical reduction of articular surface can be guaranteed, and increase the stability of fracture local.Therefore, bone extenal fixation is association of activity and inertia, stage application, take into account entire and part, dynamically with the Therapeutic Principle of balance, function of joint can be made to obtain the soonest, use to greatest extent, final realize fracturing healing and functional rehabilitation.
For configuration and the function of the external fixator of knee joint position, the requirement of articular fracture treatment concept be met, its structure should be convenient to carry out entire combination, can dismantle that to implement local fixing again; Fixing and drawing-off function should be had, also will have the dynamic equilibrium function allowing joint motion.
In the last few years, still have the report of application bone External fixation knee joint part fracture, illustrate that the method has certain Clinical practice Practice of Value and proves, but yet there is a lot of shortcomings, as holder Heavy Weight, hinder limb activity, component poor universality, draw point cannot adjusting angle, and assemble dumb, function is few.
Like product has AO external fixator and Ilizarov ring type external fixator.This intuitive knowledge external fixator has the following disadvantages respectively:
1, AO external fixator: can only implement static fixing, can not carry out drawing-off to knee joint, therapeutic process can not carry out the functional trainings such as joint motion, easily causes knee stiffness or dysfunction.
2, Ilizarov ring type external fixator: structure is numerous and diverse, full pin layout, draw point needs to pass through muscle, and not only operation easier is large, and hinders joint exercise, and the incidence rate of the complication such as pin tract infection is also high.
Summary of the invention
The object of this invention is to provide a kind of knee joint to be association of activity and inertia regulation and control external fixator, existing knee joint position exter-nal fixer complex structure be solved, be inconvenient to regulate and control, technical problem that Heavy Weight, function singleness, therapeutic effect are bad.
For achieving the above object, the present invention adopts following technical scheme:
This knee joint is association of activity and inertia regulation and control external fixator, comprise the upper C shape hole ring being located at distal femur and the lower C shape hole ring being located at proximal tibia, described upper C shape hole hoop is connected with two upper tubular linkage by T-shaped connecting plate, two double flute steel needle fixing clamps are fixed on two upper tubular linkage, two screw thread half backshank ends are fixed with two double flute steel needle fixing clamps respectively, and the tip of two screw thread half pins is fixed in femoral shaft; Be connected with arc between upper C shape hole ring and upper tubular linkage to bend, arc bow is fixed with single cavity steel needle fixing clamp, and a screw thread half backshank end and single cavity steel needle fixing clamp are fixed, and tip is fixed in femoral shaft; Upper C shape hole ring is also fixed with full pin and two screw thread half pins, full pin is through distal femur, and its two ends are fixed on C shape hole ring, and two screw thread half backshank ends are separately fixed at C shape hole ring two ends, and tip is fixed on distal femur;
Described upper C shape hole ring is connected by knee joint elbow joint device with between lower C shape hole ring;
A lower tubular linkage is connected with under described lower C shape hole hoop, two single cavity steel needle fixing clamps are fixed on lower tubular linkage, two screw thread half backshank ends are fixed with two single cavity steel needle fixing clamps respectively, and the tip of two screw thread half pins is fixed on tibial shaft; Be connected with arc between lower C shape hole ring and lower tubular linkage to bend, arc bow is fixed with single cavity steel needle fixing clamp, and a screw thread half backshank end and single cavity steel needle fixing clamp are fixed, and tip is fixed on tibial shaft; Lower C shape hole ring is also fixed with full pin, and full pin is through proximal tibia, and its two ends are fixed on lower C shape hole ring;
Described single cavity steel needle fixing clamp and double flute steel needle fixing clamp form by draw point pressure pad, draw point pad, base and bolt; Hole on screw bolt passes draw point pressure pad, draw point pad and base is also locked;
Draw point pressure pad center has screwed hole, and draw point pressure pad encloses chimb towards the one side of draw point pad with one, chimb is intervally distributed with draw point installing port corresponding between two;
Draw point pad center has unthreaded hole;
Base has screwed hole, and base is having one or two groove towards the one side of draw point pad, forms single cavity base or double flute base; The steel needle fixing clamp being provided with single cavity base forms single cavity steel needle fixing clamp, and the steel needle fixing clamp being provided with double flute base forms double flute steel needle fixing clamp.
One end of described arc bow is fixed on C shape hole ring by locking joint device, and the other end is fixed by universal joint and tubular linkage.
Described full pin two ends are fixed on upper C shape hole ring or lower C shape hole ring by bolt or single cavity steel needle fixing clamp.
Described two screw thread half backshank ends are fixed on upper C shape hole ring two ends by bolt or single cavity steel needle fixing clamp respectively.
Described lower tubular linkage upper end is fixed by bolt and lower C shape hole ring.
In two grooves on described double flute base, one is C shape groove, and another is U-shaped groove.
The chimb of described draw point pressure pad with the contact surface of draw point pad on have sawtooth corrugation.
Described knee joint elbow joint device by upper connecting rod, lower link, be connected to the otic placode of upper connecting rod bottom surface and lower link end face, and hinge is formed; Upper connecting rod and lower link are articulated and connected through the earhole on otic placode by hinge.
The upper connecting rod top of described knee joint elbow joint device is fixed by bolt and upper C shape hole ring, and lower link bottom is fixed by bolt and lower C shape hole ring.
Compared with prior art the present invention has following characteristics:
1, overall structure is made up of distal femur, proximal tibia orifice ring trigonometric expression and trans-articular sound fixture, meets Mechanobiology requirement.
2, distal femur, proximal tibia orifice ring trigonometric expression external fixator have the adaptability of good anatomy and fixing joint fracture; Draw point can not pass through muscle, simple and safe operation;
3, connected by knee joint elbow joint device between distal femur, proximal tibia orifice ring trigonometric expression external fixator.Treatment can be implemented static fixing by fastening knee joint elbow joint device in early days; Middle and advanced stage, can loosen joint device in one's power and implement dynamically fixing.The screw rod of knee joint elbow joint device has drawing-off pressurization function, can effectively maintain and control knee space, both can imitate and avoid cartilage lesion, to reduce or to avoid the generation of traumatic arthritis.
4, tubular linkage, single cavity steel needle fixing clamp, double flute steel needle fixing clamp and draw point are targetedly, personalized carrying out combine, regulate and control, and substantially increase the safety of bone External technique, advance, practicality and clinical value.
Steel needle fixing clamp has single cavity and double flute two kinds, with the use of, there is flexible operation, conveniently regulating and controlling, lightweight advantage.Assemble rear fastening nut steel needle fixing clamp and tubular linkage to be fixed, and by draw point and steel needle fixing clamp fixation, unscrewed nut and can regulate draw point angle and upper-lower position.
Tubular linkage device enforcement thread a needle fixing after, maneuver (staff) can be passed through and directly carry out reduction (orthopedic) adjustment, also can reset rapidly by means of by fracture reposition instrument (by Beijing Institute of External Skeletal Fixation Technology's development and production), operative treatment quality can be ensured, reduce workload again, save time, laborsaving, economize medical care expenses.
Compared with prior art beneficial effect of the present invention is as follows:
1, overall structure meets anatomy, therapeutics and Mechanobiology requirement more, and fixing stable, regulation and control are convenient.
2, operation technique is easy, achieves and implement reduction of the fracture operation under Wicresoft's condition.The damage once again avoiding fracture local soft tissue and blood to transport to greatest extent, is conducive to promoting bone remoulding, healing, meets and resets satisfied and protect blood for conforming principle.
3, treatment can be implemented static fixing by fastening locking joint device in early days; Middle and advanced stage, can loosen joint device in one's power and implement dynamically fixing, while the healing of guarantee draw point, can take into account again training and the early rehabilitation of knee joint function.
4, can effectively maintain and control knee space, both can imitate and avoid cartilage lesion, to reduce or to avoid the generation of traumatic arthritis.
5, the Structure and Properties of external fixator, meets modern articular fracture anatomical reduction and sound fixes the treatment requirement with early functional training.
The present invention's static state is fixing stable, and dynamic stable equilibrium, has the adaptability of good anatomy, therapeutics and mechanical property.The different phase for the treatment of, according to the biological processes of union of fracture, can implement static state and fixes or dynamically fix, controllable knee space, to the comminuted fracture of difficulty or ease anatomical reduction, affected use can be ground by knee articulation, make the reduction of the fracture more satisfied, make therapeutic process more reasonable, curative effect is satisfaction more, both can promote union of fracture, can reduce again or avoid knee stiffness, knee joint function disorder, particularly serious splintered fracture advanced person and superior treatment method.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is the exploded view of Lower Half of the present invention.
Fig. 2 is the exploded view of the first half of the present invention.
Fig. 3 is the exploded view of entirety of the present invention.
Fig. 4 is the structural representation after the present invention assembles.
Fig. 5 is application drawing of the present invention.
The upper tubular linkage of Reference numeral: 1-, 2-single cavity steel needle fixing clamp, 3-double flute steel needle fixing clamp, 4-screw thread half pin, the full pin of 5-, 6-single cavity base, tubular linkage under 7-, 8-draw point pad, 9-draw point pressure pad, 9.1-draw point installing port, 10-double flute base, 10.1-groove, 11-bolt, 12-T shape connecting plate, 13-knee joint elbow joint device, 13.1-upper connecting rod, 13.2-lower link, 13.3-otic placode, 13.4-hinge, 14-arc bends, 15-upper C shape hole ring, C shape hole ring under 16-, 17-universal joint, 18-femur, 19-tibia, 20-locks joint device.
Detailed description of the invention
Embodiment is see shown in Fig. 3 ~ 5, and this knee joint is association of activity and inertia regulation and control external fixator, comprises the upper C shape hole ring 15 being located at femur 18 far-end and the lower C shape hole ring 16 being located at tibia 19 near-end.
Described upper C shape hole ring 15 is upwards connected with two upper tubular linkage 1 by T-shaped connecting plate 12, two double flute steel needle fixing clamps 3 are fixed on two upper tubular linkage 1, two screw thread half pin 4 tail ends are fixed with two double flute steel needle fixing clamps 3 respectively, and the tip of two screw thread half pins 4 is fixed in femoral shaft; Be connected with arc between upper C shape hole ring 15 and upper tubular linkage 1 and bend 14, one end of described arc bow 14 can be fixed on C shape hole ring by locking joint device 20, the other end is fixed by universal joint 17 and tubular linkage, arc bow 14 is fixed with single cavity steel needle fixing clamp 2, screw thread half pin 4 tail end and single cavity steel needle fixing clamp 2 are fixed, and tip is fixed in femoral shaft; Upper C shape hole ring 15 is also fixed with full pin 5 and two screw thread half pins 4, full pin is through distal femur, its two ends are bolted on upper C shape hole ring 15, and two screw thread half pin 4 tail ends are fixed on upper C shape hole ring 15 two ends by single cavity steel needle fixing clamp respectively, and tip is fixed on distal femur.
Described upper C shape hole ring 15 is connected by knee joint elbow joint device 13 with between lower C shape hole ring 16.
Described lower C shape hole ring 16 is connected with a lower tubular linkage 7 downwards, and lower tubular linkage 7 upper end is fixed by bolt and lower C shape hole ring 16.Two single cavity steel needle fixing clamps 2 are fixed on lower tubular linkage 16, and two screw thread half pin 4 tail ends are fixed with two single cavity steel needle fixing clamps 2 respectively, and the tip of two screw thread half pins 4 is fixed on tibial shaft; Be connected with arc between lower C shape hole ring 16 and lower tubular linkage 7 and bend 14, arc is fixed with single cavity steel needle fixing clamp 2, screw thread half pin 4 tail end on bending and single cavity steel needle fixing clamp 2 is fixed, and tip is fixed on tibial shaft; Lower C shape hole ring 16 is also fixed with full pin 5, and full pin is through proximal tibia, and its two ends are bolted on lower C shape hole ring 16.
Shown in Fig. 1, Fig. 2, described single cavity steel needle fixing clamp 2 and double flute steel needle fixing clamp 3 form by draw point pressure pad 9, draw point pad 8, base and bolt 11; Bolt 11 passes the hole on draw point pressure pad 9, draw point pad 8 and base successively and locks;
Draw point pressure pad 9 center has screwed hole, and draw point pressure pad 9 encloses chimb towards the one side of draw point pad 8 with one, chimb is intervally distributed with draw point installing port 9.1 corresponding between two.
Draw point pad 8 center has unthreaded hole.
Base has screwed hole, and base is having one or two groove towards the one side of draw point pad 8, forms single cavity base 6 or double flute base 10; The steel needle fixing clamp being provided with single cavity base forms single cavity steel needle fixing clamp 2, and the steel needle fixing clamp being provided with double flute base forms double flute steel needle fixing clamp 3.
Shown in Fig. 2 ~ 5, described knee joint elbow joint device 13 by upper connecting rod 13.1, lower link 13.2, be connected to the otic placode 13.3 of upper connecting rod bottom surface and lower link end face, and hinge 13.4 is formed; Upper connecting rod 13.1 and lower link 13.2 are articulated and connected through the earhole on otic placode 13.3 by hinge 13.4.
Upper connecting rod 13.1 top of described knee joint elbow joint device 13 is fixed by bolt and upper C shape hole ring 15, and lower link 13.2 bottom is fixed by bolt and lower C shape hole ring 16.
Number of assembling steps of the present invention is as follows:
1, femoral component:
(1) on two, tubular linkage is inserted in double flute base; Draw point pressure pad and draw point pad are penetrated in bolt successively, then bolt is screwed in double flute base, double flute steel needle fixing clamp is fixed on tubular linkage.Screw thread half pin is penetrated in the hole slot of double flute steel needle fixing clamp, tights a bolt, draw point is locked on double flute steel needle fixing clamp.Another group double flute base, steel needle fixing clamp and draw point are fixed with reference to above method.
(2) by T-shaped connecting plate, two upper tubular linkage are connected with the upper C shape hole ring of distal femur.
(3) on arc bow, penetrate single cavity base, and be screwed into bolt, single cavity steel needle fixing clamp is fixed on arc bow.Screw thread half pin is penetrated single cavity steel needle fixing clamp, after angle of determining to thread a needle, tights a bolt, fixing draw point.
(4) one end of arc bow is fixed on the upper C shape hole ring of distal femur by utilizing locking joint device, and arc bow is connected and fixed with upper tubular linkage by other end universal joint.
(5) on the edge hole at upper C shape hole ring two ends, single cavity steel needle fixing clamp and draw point is fixed with bolt.
2, tibia part:
(1) under, tubular linkage upper end is fixed by bolt and lower C shape hole ring.
(2) single cavity steel needle fixing clamp is installed on tubular linkage, according to the angle be applicable to, fixing draw point is installed.
(3) first on arc bow, single cavity base be installed and fix single cavity steel needle fixing clamp and screw thread half pin.
(4) fix tubular linkage with universal joint and arc bends, the one end of being bent by arc is connected and fixed by the lower C shape hole ring of locking joint device and proximal tibia.
3, knee joint elbow joint device is utilized to connect above-mentioned femoral component and tibia part.
Method of threading a needle of the present invention is as follows:
1, femur is threaded a needle:
(1) femoral shaft is threaded a needle: place 2 pieces of diameter 4mm or 5mm screw thread half pin in lateral side of femur.
(2) distal femur is threaded a needle: the full pin placing 1 piece of 2.5 ~ 3mm diameter on condyle of femur, fixes, and carry out tension with the hole ring of far-end, then penetrates two pieces of screw thread half pins.
2, tibia is threaded a needle:
(1) tibial shaft is threaded a needle: before tibia, inner side places 3 pieces of diameter 4mm or 5mm tapered thread half pin, the multidirectional layout in multiple spot.
(2) proximal tibia is threaded a needle: can intersect the Kirschner wire placing diameter 1.5 ~ 2mm during permission.If fracture is pulverized serious, also can wear again by middle and late stage.
Claims (9)
1. knee joint is association of activity and inertia a regulation and control external fixator, comprises upper C shape hole ring (15) being located at femur (18) far-end and lower C shape hole ring (16) being located at tibia (19) near-end, it is characterized in that:
Described upper C shape hole ring (15) is upwards connected with two upper tubular linkage (1) by T-shaped connecting plate (12), two double flute steel needle fixing clamps (3) are fixed on two upper tubular linkage (1), two screw thread half pin (4) tail ends are fixed with two double flute steel needle fixing clamps (3) respectively, and the tip of two screw thread half pins (4) is fixed in femoral shaft; Be connected with arc between upper C shape hole ring (15) and upper tubular linkage (1) to bend (14), arc bow (14) is fixed with single cavity steel needle fixing clamp (2), screw thread half pin (4) tail end and single cavity steel needle fixing clamp (2) are fixed, and tip is fixed in femoral shaft; Upper C shape hole ring (15) is also fixed with full pin (5) and two screw thread half pins (4), full pin is through distal femur, its two ends are fixed on C shape hole ring (15), and two screw thread half pin (4) tail ends are separately fixed at C shape hole ring (15) two ends, and tip is fixed on distal femur;
Described upper C shape hole ring (15) is connected by knee joint elbow joint device (13) with between lower C shape hole ring (16);
Described lower C shape hole ring (16) is connected with a lower tubular linkage (7) downwards, two single cavity steel needle fixing clamps (2) are fixed on lower tubular linkage (16), two screw thread half pin (4) tail ends are fixed with two single cavity steel needle fixing clamps (2) respectively, and the tip of two screw thread half pins (4) is fixed on tibial shaft; Be connected with arc between lower C shape hole ring (16) and lower tubular linkage (7) to bend (14), arc bow is fixed with single cavity steel needle fixing clamp (2), screw thread half pin (4) tail end and single cavity steel needle fixing clamp (2) are fixed, and tip is fixed on tibial shaft; Lower C shape hole ring (16) is also fixed with full pin (5), and full pin is through proximal tibia, and its two ends are fixed on lower C shape hole ring (16);
Described single cavity steel needle fixing clamp (2) and double flute steel needle fixing clamp (3) form by draw point pressure pad (9), draw point pad (8), base and bolt (11); Bolt (11) passes the hole on draw point pressure pad (9), draw point pad (8) and base successively and locks;
Draw point pressure pad (9) center has screwed hole, and draw point pressure pad (9) encloses chimb towards the one side of draw point pad (8) with one, chimb is intervally distributed with draw point installing port (9.1) corresponding between two;
Draw point pad (8) center has unthreaded hole;
Base has screwed hole, and base is having one or two groove towards the one side of draw point pad (8), forms single cavity base (6) or double flute base (10); The steel needle fixing clamp being provided with single cavity base forms single cavity steel needle fixing clamp (2), and the steel needle fixing clamp being provided with double flute base forms double flute steel needle fixing clamp (3).
2. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: one end of described arc bow (14) is fixed on C shape hole ring by locking joint device (20), and the other end is fixed by universal joint (17) and tubular linkage.
3. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: described full pin (5) two ends are fixed on upper C shape hole ring (15) or lower C shape hole ring (16) by bolt or single cavity steel needle fixing clamp.
4. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: described two screw thread half pin (4) tail ends are fixed on upper C shape hole ring (15) two ends by bolt or single cavity steel needle fixing clamp respectively.
5. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: described lower tubular linkage (7) upper end is fixed by bolt and lower C shape hole ring (16).
6. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: in two grooves on described double flute base (10), one is C shape groove, and another is U-shaped groove.
7. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: the chimb of described draw point pressure pad (9) with the contact surface of draw point pad (8) on have sawtooth corrugation.
8. knee joint according to claim 1 is association of activity and inertia regulation and control external fixator, it is characterized in that: described knee joint elbow joint device (13) by upper connecting rod (13.1), lower link (13.2), be connected to the otic placode (13.3) of upper connecting rod bottom surface and lower link end face, and hinge (13.4) is formed; Upper connecting rod (13.1) and lower link (13.2) are articulated and connected through the earhole on otic placode (13.3) by hinge (13.4).
9. knee joint according to claim 8 is association of activity and inertia regulation and control external fixator, it is characterized in that: upper connecting rod (13.1) top of described knee joint elbow joint device (13) is fixed by bolt and upper C shape hole ring (15), and lower link (13.2) bottom is fixed by bolt and lower C shape hole ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310400953.2A CN103445843B (en) | 2013-09-06 | 2013-09-06 | Knee-joint activity and inertia-combined adjusting control outer fixer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310400953.2A CN103445843B (en) | 2013-09-06 | 2013-09-06 | Knee-joint activity and inertia-combined adjusting control outer fixer |
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| CN103445843A CN103445843A (en) | 2013-12-18 |
| CN103445843B true CN103445843B (en) | 2015-05-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622736B (en) * | 2013-12-12 | 2016-02-03 | 游硕 | For the fracture reduction fixator of extremity long diaphysis |
| CN109966106B (en) * | 2019-04-11 | 2023-11-21 | 潍坊钰鼎生物科技有限公司 | Auxiliary reduction mechanism for fracture |
| CN113974805A (en) * | 2021-12-09 | 2022-01-28 | 河北医科大学第三医院 | External fixator for tibiofibula |
| CN116115319B (en) * | 2023-01-05 | 2023-09-12 | 无锡市第九人民医院 | Tibia platform fracture positioning and guiding equipment under arthroscope |
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| DE102006027155A1 (en) * | 2006-06-08 | 2007-12-13 | Ernst-Moritz-Arndt-Universität Greifswald | Dynamic knee joint fixature for patient, has upper and lower sections fastened at thigh bone and shin bone of patient by bone screws, where upper section and lower section are connected by upper clamp and lower clamp, respectively |
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| CN103006302A (en) * | 2012-10-22 | 2013-04-03 | 夏和桃 | Spherical universal joint for external bone fixator and regulating type bionic external bone fixator |
| CN203425025U (en) * | 2013-09-06 | 2014-02-12 | 江苏广济医疗科技有限公司 | Knee joint dynamic and static combination regulating external fixator |
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| US6162223A (en) * | 1999-04-09 | 2000-12-19 | Smith & Nephew, Inc. | Dynamic wrist fixation apparatus for early joint motion in distal radius fractures |
| DE102006027155A1 (en) * | 2006-06-08 | 2007-12-13 | Ernst-Moritz-Arndt-Universität Greifswald | Dynamic knee joint fixature for patient, has upper and lower sections fastened at thigh bone and shin bone of patient by bone screws, where upper section and lower section are connected by upper clamp and lower clamp, respectively |
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