CN103445843A - 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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- CN103445843A CN103445843A CN2013104009532A CN201310400953A CN103445843A CN 103445843 A CN103445843 A CN 103445843A CN 2013104009532 A CN2013104009532 A CN 2013104009532A CN 201310400953 A CN201310400953 A CN 201310400953A CN 103445843 A CN103445843 A CN 103445843A
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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 bone external fixator.
Background technology
In recent years, along with the outer fixing theory of bone is upgraded, technology is improved and the improvement of appliance function, bone External fixation knee joint fracture also obtains new breakthrough.When simplifying the operation and improving curative effect, for complexity knee joint fracture, particularly serious splintered fracture and the existing fractures infected provide new selection.
The theory that bone External fixation knee joint is fractured is the Therapeutic Principle that interim static state is fixed and dynamically fixed, drawing-off is fixing and part is fixed, fractures combines with the use suffering limb.As being fixed with, the static state of early implementation trans-articular is beneficial to repair in trauma and blood for rebuilding; Carry out dynamic drawing-off mid-term and be fixed with break-in and the joint nutrition that is beneficial to articular cartilage, reduce the generation of the complication such as ankylosis; Fix in simple in conjunction with cancellous bone screw, Kirschner wire etc. between folded block or add local fixing such as wearing outer fixedly draw point, can guarantee the anatomical reduction of articular surface, and increasing the local stability of fracture.Therefore, bone fixedly is association of activity and inertia outward, stage application, take into account entire and part, dynamically with the Therapeutic Principle of balance, can make function of joint obtain the soonest, use to greatest extent, final healing and the functional rehabilitation of fracturing realized.
The configuration and the function that are used for the external fixator of knee joint position, meet the requirement of articular fracture treatment theory, should be convenient to carry out entire combination on its structure, can dismantle and implement local fixing again; Should there is fixing and drawing-off function, also will there is the dynamic equilibrium function that allows joint motion.
In the last few years, still have the report of application bone External fixation knee joint section fracture, illustrate that the method has certain clinical use value and facts have proved, but yet there is a lot of shortcomings, as the holder Heavy Weight, hinder limb activity, the member versatility is poor, draw point can't adjusting angle, assembles dumbly, and 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, to knee joint, can not carry out drawing-off, 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 card clothing office, and draw point need 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 purpose of this invention is to provide a kind of knee joint regulation and control external fixator of being association of activity and inertia, solve existing knee joint position bone external fixator complex structure, inconvenient regulation and control, Heavy Weight, function singleness, the bad technical problem of therapeutic effect.
For achieving the above object, the present invention adopts following technical scheme:
This knee joint regulation and control external fixator of being association of activity and inertia, comprise the upper C shape hole ring of being located at distal femur and the lower C shape hole ring of being located at proximal tibia, be connected with two upper tubulose connecting rods by T shape connecting plate on described upper C shape hole hoop, two double flute steel needle fixing clamps are fixed on two upper tubulose connecting rods, 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 on femoral shaft; Be connected with arc bow between upper C shape hole ring and upper tubulose connecting rod, on the arc bow, be fixed with the single cavity steel needle fixing clamp, screw thread half backshank end and single cavity steel needle fixing clamp are fixed, and tip is fixed on femoral shaft; Also be fixed with full pin and two screw thread half pins on upper C shape hole ring, 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;
Between described upper C shape hole ring and lower C shape hole ring, by knee joint elbow joint device, be connected;
Be connected with a lower tubulose connecting rod under described lower C shape hole hoop, two single cavity steel needle fixing clamps are fixed on lower tubulose connecting rod, 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 bow between lower C shape hole ring and lower tubulose connecting rod, on the arc bow, be fixed with the single cavity steel needle fixing clamp, screw thread half backshank end and single cavity steel needle fixing clamp are fixed, and tip is fixed on tibial shaft; Also be fixed with full pin on lower C shape hole ring, 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 locking;
Draw point pressure pad center has screwed hole, and the draw point pressure pad with a circle chimb, is intervally distributed with corresponding in twos draw point installing port towards the one side of draw point pad on chimb;
Draw point pad center has unthreaded hole;
Have screwed hole on base, base has one or two groove in the one side towards the draw point pad, forms single cavity base or double flute base; The steel needle fixing clamp that is provided with the single cavity base forms the single cavity steel needle fixing clamp, and the steel needle fixing clamp that is provided with the double flute base forms the 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 tubulose connecting rod.
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 threads, half backshank end is fixed on upper C shape hole ring two ends by bolt or single cavity steel needle fixing clamp respectively.
Described lower tubulose connecting rod 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 the U-shaped groove.
The chimb of described draw point pressure pad has the sawtooth ripple on the contact surface with the draw point pad.
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 forms; 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 the 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 comprised of distal femur, proximal tibia orifice ring trigonometric expression and trans-articular sound fixture, meets the 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, between distal femur, proximal tibia orifice ring trigonometric expression external fixator, by knee joint elbow joint device, connected.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 the 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, tubulose connecting rod, single cavity steel needle fixing clamp, double flute steel needle fixing clamp and draw point targetedly, personalized being combined, regulated and controled, greatly improved safety, advance, practicality and the clinical value of bone External technique.
Steel needle fixing clamp has two kinds of single cavity and double flutes, is used in conjunction with, and has flexible operation, conveniently regulating and controlling, lightweight advantage.Having assembled rear fastening nut can fix steel needle fixing clamp and tubulose connecting rod, and, by draw point and steel needle fixing clamp fixation, unscrews nut and can regulate draw point angle and upper-lower position.
Tubulose connecting rod device implement to thread a needle fixing after, can directly carry out reduction (orthopedic) adjustment by maneuver (staff), also can be by means of by fracture reposition instrument, (by Beijing Institute of External Skeletal Fixation Technology's development and production) reset rapidly, can guarantee the operative treatment quality, reduce again workload, 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, has realized implementing reduction of the fracture operation under Wicresoft's condition.Avoid to greatest extent the fracturing damage once again of local soft tissue and blood fortune, be conducive to promote that bone is rebuild, healing, meet reset satisfied with protection 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 to fix, and when guaranteeing the draw point healing, 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 of external fixator and performance, meet the treatment requirement of the fixing and early functional training of modern articular fracture anatomical reduction and sound.
The present invention is static fixing stable, and dynamically stable equilibrium has the adaptability of good anatomy, therapeutics and mechanical property.The different phase for the treatment of, can, according to the biological processes of union of fracture, implement static fixing or dynamically fixing, can regulate and control knee space, to the comminuted fracture of difficulty or ease anatomical reduction, can grind affected use by the knee joint activity, make the reduction of the fracture more satisfied, make therapeutic process more reasonable, curative effect is more satisfied, both can promote union of fracture, can reduce or avoid knee stiffness again, knee joint fracture, the advanced and good Therapeutic Method of serious splintered fracture particularly.
The 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 integral body 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 tubulose connecting rod 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, tubulose connecting rod under 7-, 8-draw point pad, 9-draw point pressure pad, 9.1-draw point installing port, 10-double flute base, 10.1-groove, the 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 bow, the upper C shape of 15-hole ring, C shape hole ring under 16-, the 17-universal joint, the 18-femur, the 19-tibia, 20-locking joint device.
The specific embodiment
Embodiment is referring to shown in Fig. 3～5, and this knee joint regulation and control external fixator of being association of activity and inertia, comprise the upper C shape hole ring 15 of being located at femur 18 far-ends and the lower C shape hole ring 16 of being located at tibia 19 near-ends.
Described upper C shape hole ring 15 upwards is connected with two upper tubulose connecting rods 1 by T shape connecting plate 12, two double flute steel needle fixing clamps 3 are fixed on two upper tubulose connecting rods 1, two screw thread half pin 4 tail ends are fixing with two double flute steel needle fixing clamps 3 respectively, and the tip of two screw thread half pins 4 is fixed on femoral shaft; Be connected with arc bow 14 between upper C shape hole ring 15 and upper tubulose connecting rod 1, 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 tubulose connecting rod, be fixed with single cavity steel needle fixing clamp 2 on arc bow 14, screw thread half pin 4 tail end and single cavity steel needle fixing clamp 2 are fixing, and tip is fixed on femoral shaft; Also be fixed with full pin 5 and two screw thread half pins 4 on upper C shape hole ring 15, 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 the single cavity steel needle fixing clamp respectively, and tip is fixed on distal femur.
Between described upper C shape hole ring 15 and lower C shape hole ring 16, by knee joint elbow joint device 13, be connected.
Described lower C shape hole ring 16 is connected with a lower tubulose connecting rod 7 downwards, and lower tubulose connecting rod 7 upper ends are fixing by bolt and lower C shape hole ring 16.Two single cavity steel needle fixing clamps 2 are fixed on lower tubulose connecting rod 16, and two screw thread half pin 4 tail ends are fixing 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 bow 14 between lower C shape hole ring 16 and lower tubulose connecting rod 7, arc is fixed with 2, screw threads of single cavity steel needle fixing clamp, half pin 4 tail ends on bending and single cavity steel needle fixing clamp 2 is fixing, and tip is fixed on tibial shaft; Also be fixed with full pin 5 on lower C shape hole ring 16, 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 is successively through the hole on draw point pressure pad 9, draw point pad 8 and base locking;
Draw point pressure pad 9 centers have screwed hole, and draw point pressure pad 9 with a circle chimb, is intervally distributed with corresponding in twos draw point installing port 9.1 towards the one side of draw point pad 8 on chimb.
Have screwed hole on base, base has one or two groove in the one side towards draw point pad 8, forms single cavity base 6 or double flute base 10; The steel needle fixing clamp that is provided with the single cavity base forms single cavity steel needle fixing clamp 2, and the steel needle fixing clamp that is provided with the 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 forms; 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 tops of described knee joint elbow joint device 13 are fixing by bolt and upper C shape hole ring 15, and lower link 13.2 bottoms are fixing by bolt and lower C shape hole ring 16.
Number of assembling steps of the present invention is as follows:
1, femoral component:
(1) be inserted in the double flute base on the tubulose connecting rod on two; Draw point pressure pad and draw point pad are penetrated in bolt successively, then bolt is screwed in the double flute base, the double flute steel needle fixing clamp is fixed on the tubulose connecting rod.Screw thread half pin is penetrated in the hole slot of double flute steel needle fixing clamp, tight a bolt, draw point is locked on the 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 shape connecting plate, two upper tubulose connecting rods are connected with the upper C shape hole ring of distal femur.
(3) penetrate the single cavity base on the arc bow, and be screwed into bolt, the single cavity steel needle fixing clamp is fixed on the arc bow.Screw thread half pin is penetrated to the single cavity steel needle fixing clamp, after determining the angle of threading a needle, tight a bolt, fixedly draw point.
(4) end that arc bends is locked the joint device by utilization and is fixed on the upper C shape hole ring of distal femur, and other end universal joint is connected and fixed the arc bow with upper tubulose connecting rod.
(5) on the edge hole at upper C shape hole ring two ends with bolt fixedly single cavity steel needle fixing clamp and draw point.
2, tibia part:
(1) lower tubulose connecting rod upper end is fixed by bolt and lower C shape hole ring.
(2) the single cavity steel needle fixing clamp is installed on the tubulose connecting rod, according to applicable angle, fixedly draw point is installed.
(3) single cavity base fixedly single cavity steel needle fixing clamp and screw thread half pin first are installed on the arc bow.
(4) with fixing tubulose connecting rod and the arc bow of universal joint, the lower C shape hole ring by an end of arc bow by locking joint device and proximal tibia is connected and fixed.
3, utilize knee joint elbow joint device to connect above-mentioned femoral component and tibia part.
The 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: in lateral side of femur, place 2 pieces of diameter 4mm or 5mm screw thread half pin.
(2) distal femur is threaded a needle: place the full pin of 1 piece of 2.5～3mm diameter on condyle of femur, fix with the hole ring of far-end, and carry out tension, then penetrate two pieces of screw thread half pins.
2, tibia is threaded a needle:
(1) tibial shaft is threaded a needle: before tibia, inboard places 3 pieces of diameter 4mm or 5mm tapered thread half pin, is the multidirectional layout of multiple spot.
(2) proximal tibia is threaded a needle: can intersect the Kirschner wire that places diameter 1.5～2mm during permission.If fracture is pulverized serious, also can wear again by middle and late stage.
Claims (9)
1. the knee joint regulation and control external fixator of being association of activity and inertia, comprise the upper C shape hole ring (15) of being located at femur (18) far-end and be located at the lower C shape hole ring (16) of tibia (19) near-end, it is characterized in that:
Described upper C shape hole ring (15) upwards is connected with two upper tubulose connecting rods (1) by T shape connecting plate (12), two double flute steel needle fixing clamps (3) are fixed on two upper tubulose connecting rods (1), two screw thread half pins (4) tail end is fixing with two double flute steel needle fixing clamps (3) respectively, and the tip of two screw thread half pins (4) is fixed on femoral shaft; Be connected with arc bow (14) between upper C shape hole ring (15) and upper tubulose connecting rod (1), be fixed with single cavity steel needle fixing clamp (2) on arc bow (14), screw thread half pin (4) tail end and single cavity steel needle fixing clamp (2) are fixing, and tip is fixed on femoral shaft; Also be fixed with full pin (5) and two screw thread half pins (4) on upper C shape hole ring (15), full pin is through distal femur, it is upper that its two ends are fixed on C shape hole ring (15), and two screw thread half pins (4) tail end is separately fixed at C shape hole ring (15) two ends, and tip is fixed on distal femur;
Between described upper C shape hole ring (15) and lower C shape hole ring (16), by knee joint elbow joint device (13), be connected;
Described lower C shape hole ring (16) is connected with a lower tubulose connecting rod (7) downwards, two single cavity steel needle fixing clamps (2) are fixed on lower tubulose connecting rod (16), two screw thread half pins (4) tail end is fixing 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 bow (14) between lower C shape hole ring (16) and lower tubulose connecting rod (7), be fixed with single cavity steel needle fixing clamp (2) on the arc bow, screw thread half pin (4) tail end and single cavity steel needle fixing clamp (2) are fixing, and tip is fixed on tibial shaft; Also be fixed with full pin (5) on lower C shape hole ring (16), 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) is successively through the hole on draw point pressure pad (9), draw point pad (8) and base locking;
Draw point pressure pad (9) center has screwed hole, and draw point pressure pad (9) with a circle chimb, is intervally distributed with corresponding in twos draw point installing port (9.1) towards the one side of draw point pad (8) on chimb;
Draw point pad (8) center has unthreaded hole;
Have screwed hole on base, base has one or two groove in the one side towards draw point pad (8), forms single cavity base (6) or double flute base (10); The steel needle fixing clamp that is provided with the single cavity base forms single cavity steel needle fixing clamp (2), and the steel needle fixing clamp that is provided with the double flute base forms double flute steel needle fixing clamp (3).
2. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, it is characterized in that: an 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 tubulose connecting rod.
3. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, 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. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, it is characterized in that: described two screw thread half pins (4) tail end is fixed on upper C shape hole ring (15) two ends by bolt or single cavity steel needle fixing clamp respectively.
5. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, it is characterized in that: described lower tubulose connecting rod (7) upper end is fixing by bolt and lower C shape hole ring (16).
6. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, it is characterized in that: in two grooves on described double flute base (10), one is C shape groove, and another is the U-shaped groove.
7. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, it is characterized in that: the chimb of described draw point pressure pad (9) has the sawtooth ripple on the contact surface with draw point pad (8).
8. the knee joint according to claim 1 regulation and control external fixator of being association of activity and inertia, 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) forms; 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. the knee joint according to claim 8 regulation and control external fixator of being association of activity and inertia, it is characterized in that: upper connecting rod (13.1) top of described knee joint elbow joint device (13) is fixing by bolt and upper C shape hole ring (15), and lower link (13.2) bottom is fixing by bolt and lower C shape hole ring (16).
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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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| CN201310400953.2A CN103445843B (en) | 2013-09-06 | 2013-09-06 | Knee-joint activity and inertia-combined adjusting control outer fixer |
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| CN103445843B CN103445843B (en) | 2015-05-13 |
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| CN103622736A (en) * | 2013-12-12 | 2014-03-12 | 游硕 | Fracture restoration fixer for long bones of limbs |
| CN109966106A (en) * | 2019-04-11 | 2019-07-05 | 潍坊钰鼎生物科技有限公司 | A kind of fracture auxiliary reset mechanism |
| CN113974805A (en) * | 2021-12-09 | 2022-01-28 | 河北医科大学第三医院 | External fixator for tibiofibula |
| CN116115319A (en) * | 2023-01-05 | 2023-05-16 | 无锡市第九人民医院 | Tibia platform fracture positioning and guiding equipment under arthroscope |
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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 |
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| CN113974805A (en) * | 2021-12-09 | 2022-01-28 | 河北医科大学第三医院 | External fixator for tibiofibula |
| CN116115319A (en) * | 2023-01-05 | 2023-05-16 | 无锡市第九人民医院 | Tibia platform fracture positioning and guiding equipment under arthroscope |
| 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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