CN203425021U - Tubular drawing pressurizing connection rod control device and external fixator - Google Patents
Tubular drawing pressurizing connection rod control device and external fixator Download PDFInfo
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- CN203425021U CN203425021U CN201320551307.1U CN201320551307U CN203425021U CN 203425021 U CN203425021 U CN 203425021U CN 201320551307 U CN201320551307 U CN 201320551307U CN 203425021 U CN203425021 U CN 203425021U
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Abstract
Provided are a tubular drawing pressurizing connection rod control device and an external fixator. The device is composed of a drawing pressurizing connection rod, a steel needle fixing clip and steel needles. The drawing pressurizing connection rod is composed of a full threaded connection rod, at least one sleeve sleeved on the full threaded connection rod and nuts connected onto the full threaded connection rod at two ends of the sleeve. The steel needle fixing clip is connected onto the drawing pressurizing connection rod and is composed of a steel needle press cushion, a threaded hole gasket, a base, a screw, an upper nut and a lower nut. The screw sequentially penetrates holes in the center of the steel needle press cushion, the threaded hole gasket and the base, an upper nut is connected with the screw above the steel needle press cushion through threads, and a lower nut is connected with the screw under the base through threads. The control device is flexible in combination and convenient to operate, has functions of static fixing, mechanical drawing and pressurizing, has good fixing, anti-shearing and anti-rotating capability, is applicable to external fixation of spiral fracture and oblique fracture of the tibia and the thighbone, intertrochanteric unstable fracture and especially comminuted fracture.
Description
Technical field
This utility model relates to the bone external fixation device that a kind of Orthopeadic Surgery is used, and the holder that adopts the not isomorphism type that this device is combined into.
Background technology
Fracture mostly is the key elements such as daily life, work, violence and causes injury, and is more common in person between twenty and fifty and teenager.After fracture of ulna and radius, between bone stump, can overlap, rotation, angulation and lateral displacement deformity, incidence rate accounts for 12% left and right of fracture sum.The function of forearm is one of principal character of human evolution, and spinfunction is significant to increasing upper limb and hand dexterity, so after forearm fracture, how to keep to greatest extent using function, is to affect the treatment to evaluate vital key element.Forearm wound mostly is open damage, many with serious soft tissue injury.During debridement, as removed soft tissue, too much easily affect function, very few easily causing infects.Though can adopt repeatedly debridement, sometimes still be difficult to the result of the last debridement of judgement.Once have skeleton to expose, be fixed with the misgivings of delayed infection in use.The easy generation osteofascial compartment syndrome that soft tissue injury is serious, is used the interior fixing fascia chamber volume that increases of steel plate to cause tension force to increase, and is unfavorable for that soft tissue blood fortune is supplied and wound is recovered.Because the anatomical shape of radius contains a rotation bow, use intramedullary pin easily to make this physiological bending change, cause the ulna broken ends of fractured bone separated, spinfunction after impact more.Chi, fracture of radius open reduction have the possibility that the disunion of chi radius occurs, and relevant greatly with peeling operation scope, ulna and radius have higher delayed union and disunion rate.The fracture of dislocation of distal radioulnar joint in merging, resets easily, but maintain to reset, has certain difficulty.In ulna marrow, fixedly Spin Control is not good, and radius pulp cavity is large, and intramedullary needle is fixed to be more difficult to control and revolved, and therefore selects protection blood transport and can provide the fixed form of rational biomechanics environment to seem extremely important.
Use fixedly forearm fracture of bone External technique treatment, can effectively avoid the generation of the problems referred to above, obtain good clinical effectiveness.But also there is complicated operation in existing bone external fixator, adjust the problem of very flexible, at therapeutic process, cannot require to realize mechanical commutation draft and pressurization function according to treatment, can not promote knitting.Application limitation is large, is difficult to for different fracture situation, and flexible combination becomes the not holder of isomorphism type.
Utility model content
The purpose of this utility model is to provide a kind of tubulose drawing-off pressurization connecting rod control device and bone external fixator, solve existing bone external fixator and be difficult to adjust, and does not possess drawing-off pressurization function, technical problem that cannot flexible assembling configuration.
For achieving the above object, this utility model adopts following technical scheme:
This tubulose drawing-off pressurization connecting rod control device, is comprised of drawing-off pressurization connecting rod, steel needle fixing clamp, draw point;
Described drawing-off pressurization connecting rod by full thread connecting rod, at least one is placed on the sleeve pipe on full thread connecting rod, and the nut being connected on the full thread connecting rod at sleeve pipe two ends forms;
Described steel needle fixing clamp is connected on drawing-off pressurization connecting rod, and steel needle fixing clamp is comprised of draw point pressure pad, screw pad, base, screw rod, top nut and lower nut; Screw rod is successively through the hole on draw point pressure pad, screw pad and base, and top nut is connected with screw rod by screw thread above draw point pressure pad, and lower nut is connected with screw rod by screw thread below base, and the diameter of screw rod is identical with the diameter of full thread connecting rod;
Described draw point pressure pad center has without threaded interior hole, the reverse side of draw point pressure pad is with a circle chimb, chimb is carved with sawtooth ripple on the contact surface with screw pad, on chimb, be intervally distributed with corresponding between two draw point installing port, the tail end of draw point is through draw point installing port, and be clamped between draw point pressure pad and screw pad, the tip of draw point is connected on art bone;
Described screw pad center has inner bolt hole;
On described base, have without threaded perforations, described base has the effective groove of one or two clamping cover in the one side towards screw pad, forms single cavity base or double flute base; The steel needle fixing clamp that is provided with single cavity base forms single cavity steel needle fixing clamp, and the steel needle fixing clamp that is provided with double flute base forms double flute steel needle fixing clamp.
Described steel needle fixing clamp is connected on the sleeve pipe of drawing-off pressurization connecting rod, or is directly connected on the full thread connecting rod of drawing-off pressurization connecting rod.
Described full thread connecting rod is external thread rod, and length is 150～300 mm;
Described sleeve pipe is without female thread, and length is 120～250mm.
In two grooves on described double flute base, one is C shape groove, and another is U-shaped groove.
Described draw point is screw thread half pin, without screw thread half pin or full pin.
The one-sided configuration bone of the front boom external fixator that this employing tubulose drawing-off pressurization connecting rod control device is assembled into, this holder is comprised of a drawing-off pressurization connecting rod, at least four single cavity steel needle fixing clamps and four draw points;
Described drawing-off pressurization connecting rod is by upper and lower two sleeve pipes, a full thread connecting rod, and the nut being connected on the full thread connecting rod at sleeve pipe two ends forms;
Wherein two single cavity steel needle fixing clamps are connected on the sleeve pipe of drawing-off pressurization connecting rod upside, and two other single cavity steel needle fixing clamp is connected on the sleeve pipe of drawing-off pressurization connecting rod downside;
Wherein the tail end of two draw points is fixed on two single cavity steel needle fixing clamps of upside, and tip is connected on the art bone of fracture top; The tail end of other two draw points is fixed on two single cavity steel needle fixing clamps of downside, and tip is connected on the art bone of fracture below.
The two one-sided configuration bone of the bar external fixators of femur that this employing tubulose drawing-off pressurization connecting rod control device is assembled into, this holder is comprised of two drawing-offs pressurization connecting rods, five double flute steel needle fixing clamps, single cavity steel needle fixing clamp and six roots of sensation draw point;
Described two drawing-offs pressurization connecting rod parallel arranged Rhizoma Atractylodis Macrocephalae bone one side, each drawing-off pressurization connecting rod is by three of upper, middle and lower sleeve pipe, a full thread connecting rod, and the nut being connected on the full thread connecting rod at sleeve pipe two ends forms;
One of them double flute steel needle fixing clamp and a single cavity steel needle fixing clamp are connected on the sleeve pipe of drawing-off pressurization connecting rod upside, and all the other four double flute steel needle fixing clamps are connected on the sleeve pipe of drawing-off pressurization connecting rod middle part and downside between two;
Wherein draw point is according to the fracture situation setting that is inclined upwardly, and its tail end is fixed on single cavity steel needle fixing clamp, and tip is connected on art bone; Other five draw points pressurize with drawing-off, and connecting rod is vertical to be arranged, and its tail end is separately fixed on five double flute steel needle fixing clamps, and tip is connected on art bone.
The near end of thighbone lever configuration bone external fixator that this employing tubulose drawing-off pressurization connecting rod control device is assembled into, this holder is comprised of two drawing-off pressurization connecting rods, eight single cavity steel needle fixing clamps and four draw points;
Described two drawing-offs pressurization connecting rod parallel arranged Rhizoma Atractylodis Macrocephalae bone one side, every drawing-off pressurization connecting rod is by a sleeve pipe, a full thread connecting rod, and the nut being connected on the full thread connecting rod at sleeve pipe two ends forms;
Wherein on the sleeve pipe of a drawing-off pressurization connecting rod, be connected with two single cavity steel needle fixing clamps, and on the full thread connecting rod below sleeve pipe, be directly connected with two single cavity steel needle fixing clamps that remove screw rod; The connected mode of another root drawing-off pressurization connecting rod is identical with the former;
Wherein two draw points are according to the fracture situation setting that is inclined upwardly, and its tail end is fixed on two single cavity steel needle fixing clamps on sleeve pipe simultaneously, and tip is connected on art bone; Connecting rod is vertical arranges in other two draw points and drawing-off pressurization, and its tail end is fixed on two full thread connecting rods on direct-connected single cavity steel needle fixing clamp simultaneously, and tip is connected on art bone.
The ring type triangle configuration hip joint that this employing tubulose drawing-off pressurization connecting rod control device is assembled into is rebuild bone external fixator, and this holder is combined by two drawing-off pressurization connecting rods, double flute steel needle fixing clamp, single cavity steel needle fixing clamp, screw thread half pin, full pin and ring type, half-ring external fixators;
Described two drawing-offs pressurization connecting rod each by a full thread connecting rod, sleeve pipe, and the nut being connected on the full thread connecting rod at sleeve pipe two ends forms; Two full thread connecting rod bottoms are connected with the upper opening ring of ring type, half-ring external fixator by universal joint, a described single cavity steel needle fixing clamp is fixed on the sleeve pipe of a drawing-off pressurization connecting rod upside, screw thread half backshank end is connected with this single cavity steel needle fixing clamp, and the end of thread is fixed near end of thighbone; Two double flute steel needle fixing clamps are connected on the sleeve pipe at two drawing-off pressurization connecting rod middle parts, and screw thread half backshank end is connected with double flute steel needle fixing clamp, and the end of thread is fixed in femoral shaft;
Described ring type, half-ring external fixator comprise upper and lower two and half hole rings or full hole ring, between upper opening ring and lower hole ring, are connected with connecting rod; Between upper opening ring and a drawing-off pressurization connecting rod, be connected with arc bow, be connected with single cavity steel needle fixing clamp on upper opening ring, screw thread half backshank end and this single cavity steel needle fixing clamp are fixed, and the end of thread is fixed in femoral shaft; On lower hole ring, be connected with screw thread half pin and full pin, full pin is through distal femur, and the end of thread and the distal femur of screw thread half pin are fixed.
Described connecting rod adopts quick drawing-off bar, drawing-off bar includes threaded rod, interior bar cover and outer bar cover fast, described threaded rod is from top to bottom inserted in interior bar cover, and described interior bar cover is from top to bottom inserted in outer bar cover, and the lower end of described outer bar cover is provided with the threaded connector that is connected use with hole ring; Described threaded connector is arranged on the internal thread hole of outer bar cover lower end;
The upper end of described interior bar cover is provided with flanging, and be provided with pressure controller between the upper end of interior bar cover and threaded rod, described pressure controller controls cover by adjusting sleeve, pressure and Compress Spring forms, the upper end of described adjusting sleeve is threaded with threaded rod, the bottom of adjusting sleeve is controlled external threading with pressure and is connected, the interior bar that described pressure control cover is movably set in flanging downside puts, and described Compress Spring is enclosed within on the threaded rod between the upper end of adjusting sleeve and the flanging of interior bar cover;
It is uncovered that the medial wall, upper end of described outer bar cover is provided with taper, the lateral wall, upper end of outer bar cover is provided with external thread section, and be provided with lock-on connection between the upper end of outer bar cover and interior bar cover, described lock-on connection is comprised of taper elastic ring and locking nut, described locking nut is by the be threaded upper end of the cover of bar outside of external thread section, described taper elastic ring be inserted in taper uncovered in, be clipped between interior bar cover and outer bar cover, and the fixing of the upper end of taper elastic ring is on the upper end of locking nut;
Between the medial wall of the lateral wall, bottom of described interior bar cover and outer bar cover, be provided with bar cover pad, the medial surface of bar cover pad is provided with union joint, described interior bar puts and is provided with the locating hole corresponding with union joint, and bar cover pad is fixed on interior bar and puts by union joint is relative with locating hole;
The lower end of described outer bar cover is provided with gimbal suspension, gimbal suspension by Connection Block, hinged otic placode, in pin, axle sleeve and bearing pin form, wherein hinged otic placode is arranged on the lower end of outer bar cover, axle sleeve and bearing pin are articulated and connected on hinged otic placode by middle pin, Connection Block is articulated and connected again on bearing pin, and described threaded connector is arranged on Connection Block.
Compared with prior art the utlity model has following characteristics and beneficial effect:
This tubulose drawing-off pressurization connecting rod control device is comprised of pressurize connecting rod, steel needle fixing clamp, draw point of drawing-off, by adjusting the nut at drawing-off pressurization connecting rod sleeve pipe two ends, can make draw point axial displacement, and can adjust the angle of draw point, realize pressurization and the drawing-off of draw point, appropriateness drawing-off pressurization function is conducive to the reset of fracture, is also beneficial to fracture recovering.In addition, because steel needle fixing clamp has adopted screw pad, and be equipped with top nut and lower nut, after lower nut locking, can make draw point position fix, by unclamping of top nut, adjust the angle of draw point.And need to change draw point apart from time, use fixedly draw point of top nut, unclamp steel needle fixing clamp lower nut, can make steel needle fixing clamp move on drawing-off pressurization connecting rod, adjust draw point distance, by the axial displacement of adjustment draw point, realize pressurization and the drawing-off of draw point.
Steel needle fixing clamp of the present utility model can be connected on the sleeve pipe of drawing-off pressurization connecting rod, also can directly be connected on the full thread connecting rod of drawing-off pressurization connecting rod, combination flexibly, handled easily, there is static fixing and mechanical commutation draft and pressurization function, have well fixing, anti-shearing and prevent rotatory power, applicable to tibia, the spiral fracture of femur, oblique fracture, unstable fracture between rotor, particularly comminuted fracture is outer fixing, can select single pole one-sided according to classification of fracture, the one-sided configuration of two bars, lever configuration, configuration is easy flexibly, static fixed function is good, be conducive to the control of rigidity of fixation, to promote union of fracture.
Tubulose drawing-off pressurization connecting rod control device can make mechanical energy (mechanical environment) and bioenergy (tissue regeneration) have the good compatibility (reasonability of Mechanobiology environment), and can meet fracture early implementation strong flexible fastening, later stage fixing, that provide axially mid-term and combined stress stimulates provides balance fixing requirement.
Tubulose drawing-off pressurization connecting rod control device can combine according to the needs for the treatment of, meet respectively the fixing of Fracture Simple, complicated fracture and comminuted fracture, overcome the shortcoming that existing product whole system is cured, manufacturing cost is high, it is expensive to use, medical expense is high.
After employing tubulose drawing-off pressurization connecting rod control device is implemented to thread a needle and is fixed, 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 operative treatment quality, reduce again workload, save time, laborsaving, economize medical care expenses.
The treatment applied range of tubulose drawing-off pressurization connecting rod control device, can realize following functions:
1, can be according to treatment requirement, by inherent function and the adjusting device of controlling type Bionics Bone external fixator, for fractures provides the function of the reduction of the fracture and adaptability rigidity; 2, for bone is damaged, the treatment of skin injury and shortening deformity of extremity provides the function of slow prolongation; 3, the treatment for B&J deformity provides progressively drawing-off orthopaedic function; 4, the comprehensive mechanical function under complex situations, provides the biomechanics adapting with bone and soft tissue regeneration environment.Above-mentioned these specific functions are that other apparatus and Therapeutic Method are not available.
Adopted the external fixator of tubulose drawing-off pressurization connecting rod control device to there is multiple comprehensive function: static fixing, dynamically fixing, drawing-off, pressurization, rectification angulation deformity, correct side displacement, rotation deformity and rigidity and control function.In clinical practice, these functions both can be brought into play specific effect, also can play total effect, as:
1, static fixed function: both can implement the fixing (such as femoral trochanteric of whole-course treatment, condyle of femur, tibial metaphysis fracture, radius far-end fracture, the whole process of the treatments such as articular fracture is fixed, or omnidistance fixing in conjunction with fractures fixing in simple), the implementation phase of again, property is fixed (such as the strong fixedly stage of fracture fixation adaptability rigidity, with interim fixing such as the damaged serious splintered fractures of bone, the early stage fixing and osteotomy of osteotomy orthopaedy extends pre-delay fixing), or can implement fixing (such as both legs intersects fixing) of special circumstances.
2, adaptability rigidity of fixation function: in the different phase of fractures, by the regulation and control of external fixator structure and mechanical property, for union of fracture, new bone mineralising provide strong fixing, axial elasticity is fixed, comprehensive flexible fastening and the different rigidity of fixations such as balance is fixing, to realize the optimized reconstruction of bone function.
3, bone and limb lengthening function: application controlling type Bionics Bone external fixator can extend bone length, as osteotomy slowly extends operation, can realize bone transport and limbs synchronous lengthening.
4, osteotomy orthopaedic function progressively: in osteotomy orthopaedy, during the extension orthopaedy of joint, the drawing-off governor motion that utilizes external fixator is drawing-off correction deformity progressively, as osteotomy, drawing-off rescues that knee joint is inside and outside turns over, and slowly drawing-off is rescued etc.
5, joint drawing-off orthopaedic function: the in the situation that of osteotomy not, with controlling type Bionics Bone external fixator, progressively drawing-off is orthopedic, arthrogryposis deformity is rescued under noinvasive condition, as knee sprung contracture deformity progressively drawing-off rescue, the progressively drawing-off of ankle and foot deformity is rescued etc.
6, the horizontal drawing-off function of bone: the horizontal drawing-off function of bone, refer to that at the longitudinal axis along tibia, to cut a long bone fast, application controlling type Bionics Bone external fixator progressively retracts it, and bone footpath is increased.This art can be used for treating ischemic disease of lower extremity, as vasculitis etc., also can be used for making bone footpath to increase.
7, skin drawing-off function: controlling type Bionics Bone external fixator can be implemented the drawing-off of various directions to skin, with used for reparing skin defect and wound surface.Can be used for the various types of skin injury of lower limb.In clinical practice, the less independent use of above-mentioned various functions, is in most cases the use in conjunction of two or more functions.Therefore, the several functions that this utility model has carries out use in conjunction, can obtain beyond thought clinical effectiveness.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is the perspective view of tubulose drawing-off pressurization connecting rod control device.
Fig. 2 is the assembly drawing of tubulose drawing-off pressurization connecting rod control device.
Fig. 3 is the structural representation of screw pad.
Fig. 4 is the assembly drawing of the one-sided configuration bone of front boom external fixator.
Fig. 5 is the structural representation of the one-sided configuration bone of front boom external fixator.
Fig. 6 is the structural representation of the two bar type of external fixators of femur.
Fig. 7 is the structural representation of near end of thighbone lever configuration bone external fixator.
Fig. 8 is the structural representation that ring type triangle configuration hip joint is rebuild bone external fixator.
Fig. 9 is that the master of quick drawing-off bar looks schematic diagram.
Figure 10 is the decomposing schematic representation of quick drawing-off bar.
Figure 11 is the assembling schematic diagram of quick drawing-off bar.
Figure 12 is the schematic diagram of the external thread section on the lateral wall, upper end of lock-on connection and outer bar cover.
Figure 13 is the structural representation of quick drawing-off bar.
Figure 14 is the enlarged diagram at I place in Figure 13.
Figure 15 is the enlarged diagram at II place in Figure 13.
Reference numeral: 1-drawing-off pressurization connecting rod, 2-steel needle fixing clamp, 3-draw point, 4-sleeve pipe, 5-full thread connecting rod, 6-nut, 7-single cavity steel needle fixing clamp, 8-double flute steel needle fixing clamp, 9-draw point pressure pad, 9.1-draw point installing port, 9.2-sawtooth ripple, 10-base, 10.1-groove, 11-screw rod, 12-screw pad, 13-top nut, 14-lower nut, 15-upper opening ring, 16-universal joint, 17-art bone, 18-connecting rod, 18.1-threaded rod, bar cover in 18.2-, the outer bar cover of 18.3-, 18.4-adjusting sleeve, 18.5-Compress Spring, 18.6-pressure is controlled cover, 18.7-taper is uncovered, 18.8-taper elastic ring, 18.9-external thread section, 18.10-locking nut, 18.11-bar cover pad, 18.12-threaded connector, 18.13-flanging, 18.14-bearing pin, 18.15-axle sleeve, 18.16-middle pin, 18.17-hinged otic placode, 18.18-Connection Block, 18.19-union joint, 18.20-locating hole, hole ring, 20-arc bow, 21-screw thread half pin, the full pin of 22-under 19-.
The specific embodiment
Embodiment is referring to shown in Fig. 1～3, and this tubulose drawing-off pressurization connecting rod control device, is comprised of drawing-off pressurization connecting rod 1, steel needle fixing clamp 2, draw point 3.
Described drawing-off pressurization connecting rod 1 by full thread connecting rod 5, at least one is placed on the sleeve pipe 4 on full thread connecting rod 5, and the nut 6 connecting on the full thread connecting rod 5 at sleeve pipe 4 two ends forms.
Described steel needle fixing clamp 2 is connected on drawing-off pressurization connecting rod 1, and steel needle fixing clamp is comprised of draw point pressure pad 9, screw pad 12, base 10, screw rod 11, top nut 13 and lower nut 14; Screw rod 11 is successively through the hole on draw point pressure pad 9, screw pad 12 and base 10, top nut 13 is connected with screw rod 11 by screw thread above draw point pressure pad 9, lower nut 14 is connected with screw rod 11 by screw thread below base, and the diameter of screw rod 11 is identical with the diameter of full thread connecting rod 5.
Described draw point pressure pad 9 centers have without threaded interior hole, the reverse side of draw point pressure pad 9 is with a circle chimb, chimb is carved with sawtooth ripple 9.2 on the contact surface with screw pad 12, on chimb, be intervally distributed with corresponding between two draw point installing port 9.1, the tail end of draw point 3 is through draw point installing port 9.1, and be clamped between draw point pressure pad 9 and screw pad 12, the tip of draw point 3 is connected on art bone 17.
Described screw pad 12 centers have inner bolt hole.
On described base 10, have without threaded perforations, base has the groove 10.1 of clamping sleeve pipe 4 use in the one side towards screw pad 12.
Described steel needle fixing clamp 2 is connected on the sleeve pipe 4 of drawing-off pressurization connecting rod 1, or is directly connected on the full thread connecting rod 5 of drawing-off pressurization connecting rod 1.
Described full thread connecting rod 5 is external thread rod, and length is 150～300 mm;
Described sleeve pipe 4 is without female thread, and length is 120～250mm.
Described base 10 has the groove 10.1 of one or two clamping sleeve pipe 4 use in the one side towards screw pad 12, form single cavity base or double flute base; The steel needle fixing clamp that is provided with single cavity base forms single cavity steel needle fixing clamp 7, and the steel needle fixing clamp that is provided with double flute base forms double flute steel needle fixing clamp 8.In two grooves on described double flute base, one is C shape groove, and another is U-shaped groove.
Described draw point 3 is screw thread half pins, without screw thread half pin or full pin.
Shown in Fig. 4, Fig. 5, the one-sided configuration bone of the front boom external fixator that this employing tubulose drawing-off pressurization connecting rod control device is assembled into, this holder is comprised of a drawing-off pressurization connecting rod 1, at least four single cavity steel needle fixing clamps 7 and four draw points 3;
Described drawing-off pressurization connecting rod 1 is by upper and lower two sleeve pipes 4, a full thread connecting rod 5, and the nut 6 being connected on the full thread connecting rod 5 at sleeve pipe 4 two ends forms;
Wherein two single cavity steel needle fixing clamps 7 are connected on the sleeve pipe 4 of drawing-off pressurization connecting rod 1 upside, and two other single cavity steel needle fixing clamp 7 is connected on the sleeve pipe 4 of drawing-off pressurization connecting rod 1 downside;
Wherein the tail end of two draw points 3 is fixed on two single cavity steel needle fixing clamps 7 of upside, and tip is connected on the art bone 17 of fracture top; The tail end of other two draw points 3 is fixed on two single cavity steel needle fixing clamps 7 of downside, and tip is connected on the art bone 17 of fracture below.
The one-sided configuration of front boom, simple in structure, easy to operate, postoperative patient comfort level is higher, oneself's nursing difficulty is less, is applicable to Fracture Simple, the fracture fixation after fixing in conjunction with internal fixation screw.
The operational approach of the one-sided configuration bone of front boom external fixator is as follows:
1. tibia is threaded a needle
(1) proximal tibia is threaded a needle: should accurately locate the body surface position of capitulum fibulae, entry point can be in the leading edge of capitulum fibulae, and the parallel tibia that runs through, to avoid damaging blood vessel after common peroneal nerve and tibia.
(2) distal tibial is threaded a needle: the position that places full pin is 2cm place on articular surface of ankle, and by the parallel tibia that runs through of anterior margin of fibula, going out pin mark should pass from great saphenous vein rear.
(3) tibial shaft is threaded a needle: on tibial shaft, avoid as far as possible wearing full pin.While placing half pin, should avoid drill bit or draw point to pass offside cortex and injured nerve blood vessel.
2. bone contact priority principle, for serious splintered fracture, should make bone stump have enough bone contact interfaces during reset, to guarantee union of fracture and regeneration quality, and does not take too much the loss of bone length into account.The bone length of losing can be made up by bone transport, or carries out limb lengthening after union of fracture.
3. wound repair priority principle will be excelled at leveraging the reparation that tissue regeneration principle solves bone and soft tissue defects, avoids applying other complexity surgical repair technology.Can shorten if desired bone length and make wound repair, then carry out bone prolongation simultaneously.So, wound repair can be guaranteed, Wicresoft's consciousness can be fully demonstrated again.
Shown in Figure 6, the two one-sided configuration bone of the bar external fixators of femur that this employing tubulose drawing-off pressurization connecting rod control device is assembled into, this holder is comprised of two drawing-offs pressurization connecting rods 1, five double flute steel needle fixing clamps 8, single cavity steel needle fixing clamp 7 and six roots of sensation draw point 3;
Described two drawing-offs pressurization connecting rod 1 parallel arranged Rhizoma Atractylodis Macrocephalae bone 17 1 sides, each drawing-off pressurization connecting rod 1 is by three of upper, middle and lower sleeve pipe 4, a full thread connecting rod 5, and the nut 6 being connected on the full thread connecting rod 5 at sleeve pipe 4 two ends forms;
One of them double flute steel needle fixing clamp 8 and a single cavity steel needle fixing clamp 7 are connected on the sleeve pipe 4 of drawing-off pressurization connecting rod 1 upside, and all the other four double flute steel needle fixing clamps 8 are connected on the sleeve pipe of drawing-off pressurization connecting rod 1 middle part and downside between two;
Wherein draw point 3 is according to the fracture situation setting that is inclined upwardly, and its tail end is fixed on single cavity steel needle fixing clamp 7, and tip is connected on art bone 17; Other five draw points and the vertical setting of drawing-off pressurization connecting rod 1, its tail end is separately fixed on five double flute steel needle fixing clamps 8, and tip is connected on art bone 17.
The base of double flute steel needle fixing clamp 8 has double flute, can be on the sleeve pipe 4 of connecting rod 1 be pressurizeed in drawing-off mobile adjustment, steel needle fixing clamp is provided with screw pad 9, adjust change the angle of draw point and draw point apart from time, two kinds of operations are not interfere with each other; On steel needle fixing clamp, there are top nut, lower nut, unclamp top nut and can adjust the angle that changes draw point, while unclamping lower nut, can make steel needle fixing clamp move on drawing-off pressurization connecting rod, adjust draw point distance, by adjusting draw point axial displacement, realize pressurization and the drawing-off of draw point.
The two one-sided configurations of bar of femur, easy static fixed function is good, easy and simple to handle, has certain mechanical commutation draft and pressurization function, is conducive to the control of rigidity of fixation flexibly, to promote union of fracture, is applicable to the fixing of transverse fracture or comminuted fracture.
The operating procedure of the two one-sided configuration bone of the bar external fixators of femur can be with reference to the operation sequence of ring type triangle configuration and the operating procedure of unilateral external fixator.
The effect comprehensive assessment of the two one-sided configurations of bar of femur is as follows:
Within 2006, cooperate with Russian Ilizarov technique center, carried out comparatively systematic research and clinical practice.And to IRHJ technology and carried out some improvement, to 2012, in Fengtai, Beijing Guanji hospital etc., carry out clinical practice and test 86 examples: follwing-up in average 3.3 years.Postoperative patient hip pain symptom, Trendelenburg gait all disappear, and limbs are isometric, noresidue deformity. and to therapeutic outcome, adopt SPSS 17.0 statistics softwares to analyze.Result: preoperative Harris hip score average out to 37.91 ± 2.14, postoperative Harris hip score average out to 89.23 ± 1.29.Postoperative 30 routine patients' curative effect is splendid, and moderate pin site infection occurs 12 examples, 6 routine knee joint limitation of activity, and 2 routine stumps are subjected to displacement, and after again processing, all patients are satisfied with to final effect, and life is taken care of oneself completely, and gait is improved.Proof: the two one-sided configurations of bar of improvement femur are compared with traditional operation, have improved draw point layout, have optimized configuration, stablize adjustable, Energy and comfort, clinical therapeutic efficacy is satisfied, has overcome the deficiency that traditional operation apparatus and operation method exist, expanded indication, clinic is promoted.
Near end of thighbone lever configuration bone external fixator shown in Figure 7, this employing tubulose drawing-off pressurization connecting rod control device is assembled into, this holder is comprised of two drawing-offs pressurization connecting rods 1, eight single cavity steel needle fixing clamps 7 and four draw points 3;
Described two drawing-offs pressurization connecting rod 1 parallel arranged Rhizoma Atractylodis Macrocephalae bone 17 1 sides, every drawing-off pressurization connecting rod 1 is by a sleeve pipe 4, a full thread connecting rod 5, and the nut 6 being connected on the full thread connecting rod 5 at sleeve pipe 4 two ends forms;
Wherein on the sleeve pipe 4 of a drawing-off pressurization connecting rod 1, be connected with two single cavity steel needle fixing clamps 7, and on the full thread connecting rod 5 below sleeve pipe 4, be directly connected with two single cavity steel needle fixing clamps 7 that remove screw rod 11; The connected mode of another root drawing-off pressurization connecting rod 1 is identical with the former;
Wherein two draw points 3 are according to the fracture situation setting that is inclined upwardly, and its tail end is fixed on two single cavity steel needle fixing clamps 7 on sleeve pipe 4 simultaneously, and tip is connected on art bone 17; The vertical setting of other two draw points and drawing-off pressurization connecting rod 1, its tail end is fixed on two full thread connecting rods 5 on direct-connected single cavity steel needle fixing clamp 7 simultaneously, and tip is connected on art bone 17.
Near end of thighbone lever configuration is fixing stable, according to lever principle design, and the shearing force of energy antagonism near end of thighbone load.Postoperative can be by adjusting drawing-off or the pressurization in interior side lever or outside, control collodiaphyseal angle, be applicable to unstable fracture between rotor, particularly comminuted fracture, and hip joint comminuted fracture and dislocation.
The operating procedure of near end of thighbone lever configuration is as follows:
1) to capital restraining forces and stability how neck of femur is threaded a needle: according to neck of femur axis, wear screw thread half pin of diameter 4 or 5mm, and with X perspective, confirm the correctness of draw point position, must conscientiously assess draw point.
2) femoral shaft is threaded a needle: in outside, suffering limb femur stage casing, wear screw thread half pin of diameter 4mm or 5mm.
Shown in Figure 8, the ring type triangle configuration hip joint that this employing tubulose drawing-off pressurization connecting rod control device is assembled into is rebuild bone external fixator, and this holder is combined with ring type, half-ring external fixator by two drawing-off pressurization connecting rods 1, double flute steel needle fixing clamp 8, single cavity steel needle fixing clamp 7, screw thread half pin 21, full pins 22;
Described two drawing-offs pressurization connecting rod 1 each by a full thread connecting rod 5, sleeve pipe 4, and the nut 6 being connected on the full thread connecting rod 5 at sleeve pipe 4 two ends forms; Two full thread connecting rod 5 bottoms are connected with the upper opening ring 15 of ring type, half-ring external fixator by universal joint 16, a described single cavity steel needle fixing clamp 7 is fixed on the sleeve pipe of drawing-off pressurization connecting rod 1 upside, screw thread half pin 21 tail ends are connected with this single cavity steel needle fixing clamp 7, and the end of thread is fixed near end of thighbone; Two double flute steel needle fixing clamps 8 are connected on the sleeve pipe 4 at two drawing-off pressurization connecting rod 1 middle parts, and screw thread half pin 21 tail ends are connected with double flute steel needle fixing clamp 8, and the end of thread is fixed in femoral shaft;
Described ring type, half-ring external fixator comprise upper and lower two and half hole rings or full hole ring, between upper opening ring 15 and lower hole ring 19, are connected with connecting rod 18; Between upper opening ring 15 and a drawing-off pressurization connecting rod 1, be connected with arc bow 20, be connected with single cavity steel needle fixing clamp 7 on upper opening ring 15, screw thread half pin 21 tail ends and this single cavity steel needle fixing clamp 7 are fixing, and the end of thread is fixed in femoral shaft; On lower hole ring 19, be connected with screw thread half pin 21 and full pin 22, full pin is through distal femur, and the end of thread and the distal femur of screw thread half pin are fixed.
Functional characteristics and indication that ring type triangle configuration hip joint is rebuild bone external fixator comprise following intension:
1. rebuild the mechanical structure of hip joint, make to move in the force of pelvic support, shorten and centre of body weight moment, rebuild the weight bearing power of hip joint.
2. maintain the dynamic equilibrium of hip joint, eliminate Trendelenburg disease, improve gait.
3. guarantee that hip joint approaches normal range of movement.
4. eliminate turning up of Valgus osteotomy art, rebuild lower limb normal mechanical axle.
5. extend suffering limb simultaneously, make two lower limb isometric.
6. eliminate and control pelvis lordosis deformity.
7. curative effect is permanent, is equal to and Normal Hip.
8. overall appearance meets lower limb aesthetic requirement.
Classical configuration and draw point layout, cause obvious impact to patient's postoperative life quality, and the impaired complication rate of neural blood vessel is higher, and patient's acceptance is greatly affected.Therefore, some scholars have attempted in conjunction with the hip joint reconstruction technique extending in marrow, and for various reasons, and not yet extensive use selects femur ring type triangle and full pin to be combined configuration or one-sided half pin configuration with half pin at present more.
The basic structure that ring type triangle configuration hip joint is rebuild bone external fixator is 3-d modelling, and mechanical property is good, fixing strong, there is adjustability, adopt full pin and half pin, the multidirectional draw point layout of multiple spot, muscle flexibly, is not worn in the position of threading a needle, not fixing joint, portable propelling.Be applicable to the whole-course treatment of supracondylar fracture of the femur.
The operating procedure that drawing-off pressurization connecting rod ring type triangle configuration hip joint is rebuild external fixator is as follows:
1, the first osteotomy line location with thread a needle: patient is flat sleeping, and the imperial palace of hip is received, and osteotomy line position ischial tuberosity and femur intersection are definite with X line perspective.Afterwards in the first bone section, wear parallel with pelvic planes put two piece of 5 mm screw needle and fixed, and notes making to turn in femur while threading a needle.
2, Wicresoft's boring osteotomy: row 1cm skin incision, insert osteotomy device sleeve pipe, carry out pin hole osteotomy.
3, use osteotome to carry out osteotomy, after knochenbruch, make distal femur abduction, and inwardly displaced 1/2.
4, whole external fixator is installed: the far and near end of external fixator is connected.
5, the second osteotomy line location, place and osteotomy: second place's osteotomy line, the i.e. vertical line of pelvis parallel lines and first place's osteotomy point---with the CORA center of tibia mechanical axis.And carry out arc Wicresoft boring osteotomy.The second bone section near-end is worn two pieces of 5mm spiral half pins, is connected and fixed with the first bone section, maintains the position of abduction, and fixes with apparatus.And in distal femur, place one piece of full pin of 2.5mm, two pieces of 5mm screw thread half pins.
6, lengthening gradually, finally realizes hip joint and rebuilds.
Shown in Fig. 9～15, connecting rod 18 in described femur ring type triangle configuration bone external fixator adopts quick drawing-off bar, drawing-off bar includes threaded rod 18.1, interior bar cover 18.2 and outer bar cover 18.3 fast, described threaded rod 18.1 is from top to bottom inserted in interior bar cover 18.2, described interior bar cover 18.2 is from top to bottom inserted in outer bar cover 18.3, and the lower end of described outer bar cover 18.3 is provided with the threaded connector 18.12 that is connected use with hole ring; Described threaded connector 18.12 is arranged on the internal thread hole of outer bar cover lower end;
The upper end of described interior bar cover 18.2 is provided with flanging 18.13, and be provided with pressure controller between the upper end of interior bar cover 18.2 and threaded rod 18.1, described pressure controller is by adjusting sleeve 18.4, pressure controls cover 18.6 and Compress Spring 18.5 forms, the upper end of described adjusting sleeve 18.4 is threaded with threaded rod 18.1, the bottom of adjusting sleeve 18.4 is controlled cover 18.6 with pressure and is threaded, described pressure control cover 18.6 is movably set on the interior bars cover 18.2 of flanging 18.12 downsides, described Compress Spring 18.5 is enclosed within on the threaded rod 18.1 between the upper end of adjusting sleeve 18.4 and the flanging 18.13 of interior bar cover 18.2,
The medial wall, upper end of described outer bar cover 18.3 is provided with taper uncovered 18.7, the lateral wall, upper end of outer bar cover 18.3 is provided with external thread section 18.9, and be provided with lock-on connection between the upper end of outer bar cover 18.3 and interior bar cover 18.2, described lock-on connection is comprised of taper elastic ring 18.8 and locking nut 18.10, described locking nut 18.10 is by the be threaded upper end of the cover of bar outside 18.3 of external thread section 18.9, described taper elastic ring 18.8 is inserted in taper uncovered 18.7, be clipped between interior bar cover 18.2 and outer bar cover 18.3, and the upper end of taper elastic ring 18.8 fixes on the upper end of locking nut 18.10,
Between the medial wall of the lateral wall, bottom of described interior bar cover 18.2 and outer bar cover 18.3, be provided with bar cover pad 18.11, the medial surface of bar cover pad 18.11 is provided with union joint 18.19, described interior bar cover 18.2 is provided with the locating hole corresponding with union joint 18.19 18.20, and bar cover pad 18.11 is fixed on interior bar cover 18.2 by union joint 18.19 is relative with locating hole 18.20;
The lower end of described outer bar cover 18.3 is provided with gimbal suspension, gimbal suspension by Connection Block 18.18, hinged otic placode 18.17, in pin 18.16, axle sleeve 18.15 and bearing pin 18.14 form, wherein hinged otic placode 18.17 is arranged on the lower end of outer bar cover 18.3, axle sleeve 18.15 and bearing pin 18.14 are articulated and connected on hinged otic placode 18.17 by middle pin 18.16, Connection Block 18.18 is articulated and connected again on bearing pin 18.14, and described threaded connector 18.12 is arranged on Connection Block 18.18.
Claims (10)
1. a tubulose drawing-off pressurization connecting rod control device, is characterized in that: drawing-off pressurization connecting rod (1), steel needle fixing clamp (2), draw point (3), consist of;
Described drawing-off pressurization connecting rod (1) by full thread connecting rod (5), at least one is placed on the sleeve pipe (4) on full thread connecting rod (5), and the nut (6) being connected on the full thread connecting rod (5) at sleeve pipe (4) two ends forms;
It is upper that described steel needle fixing clamp (2) is connected in drawing-off pressurization connecting rod (1), and steel needle fixing clamp is comprised of draw point pressure pad (9), screw pad (12), base (10), screw rod (11), top nut (13) and lower nut (14); Screw rod (11) is successively through the hole on draw point pressure pad (9), screw pad (12) and base (10), top nut (13) is connected with screw rod (11) by screw thread in draw point pressure pad (9) top, lower nut (14) is connected with screw rod (11) by screw thread below base, and the diameter of screw rod (11) is identical with the diameter of full thread connecting rod (5);
Described draw point pressure pad (9) center has without threaded interior hole, the reverse side of draw point pressure pad (9) is with a circle chimb, chimb is carved with sawtooth ripple (9.2) on the contact surface with screw pad (12), on chimb, be intervally distributed with corresponding between two draw point installing port (9.1), the tail end of draw point (3) is through draw point installing port (9.1), and be clamped between draw point pressure pad (9) and screw pad (12), the tip of draw point (3) is connected on art bone (17);
Described screw pad (12) center has inner bolt hole;
Described base has without threaded perforations on (10), and described base (10) has the groove (10.1) of one or two clamping sleeve pipe (4) use in the one side towards screw pad (12), forms single cavity base or double flute base; The steel needle fixing clamp that is provided with single cavity base forms single cavity steel needle fixing clamp (7), and the steel needle fixing clamp that is provided with double flute base forms double flute steel needle fixing clamp (8).
2. tubulose drawing-off according to claim 1 pressurization connecting rod control device, it is characterized in that: described steel needle fixing clamp (2) is connected on the sleeve pipe (4) of drawing-off pressurization connecting rod (1), or be directly connected on the full thread connecting rod (5) of drawing-off pressurization connecting rod (1).
3. tubulose drawing-off pressurization connecting rod control device according to claim 1, is characterized in that: described full thread connecting rod (5) is external thread rod, and length is 150～300 mm;
Described sleeve pipe (4) is without female thread, and length is 120～250mm.
4. tubulose drawing-off pressurization connecting rod control device according to claim 1, is characterized in that: in two grooves on described double flute base, one is C shape groove, and another is U-shaped groove.
5. tubulose drawing-off according to claim 1 pressurization connecting rod control device, is characterized in that: described draw point (3) is screw thread half pin (21), without screw thread half pin or full pin (22).
6. adopt the one-sided configuration bone of the front boom external fixator that tubulose drawing-off pressurization connecting rod control device is assembled into described in claim 1～5 any one, it is characterized in that: this holder is comprised of drawing-off pressurization connecting rod (1), at least four single cavity steel needle fixing clamps (7) and four draw points (3);
Described drawing-off pressurization connecting rod (1) is by upper and lower two sleeve pipes (4), a full thread connecting rod (5), and the nut (6) being connected on the full thread connecting rod (5) at sleeve pipe (4) two ends forms;
Wherein two single cavity steel needle fixing clamps (7) are connected on the sleeve pipe (4) of drawing-off pressurization connecting rod (1) upside, and two other single cavity steel needle fixing clamp (7) is connected on the sleeve pipe (4) of drawing-off pressurization connecting rod (1) downside;
Wherein the tail end of two draw points (3) is fixed on two single cavity steel needle fixing clamps (7) of upside, and tip is connected on the art bone (17) of fracture top; The tail end of other two draw points (3) is fixed on two single cavity steel needle fixing clamps (7) of downside, and tip is connected on the art bone (17) of fracture below.
7. adopt the two one-sided configuration bone of the bar external fixators of femur that tubulose drawing-off pressurization connecting rod control device is assembled into described in claim 1～5 any one, it is characterized in that: this holder is comprised of two drawing-offs pressurization connecting rods (1), five double flute steel needle fixing clamps (8), a single cavity steel needle fixing clamp (7) and six roots of sensation draw points (3);
Described two drawing-offs pressurization connecting rod (1) parallel arranged Rhizoma Atractylodis Macrocephalae bone (17) one sides, each drawing-off pressurization connecting rod (1) is by three sleeve pipes in upper, middle and lower (4), a full thread connecting rod (5), and the nut (6) being connected on the full thread connecting rod (5) at sleeve pipe (4) two ends forms;
One of them double flute steel needle fixing clamp (8) and a single cavity steel needle fixing clamp (7) are connected on the sleeve pipe (4) of drawing-off pressurization connecting rod (1) upside, and all the other four double flute steel needle fixing clamps (8) are connected on the sleeve pipe of drawing-off pressurization connecting rod (1) middle part and downside between two;
Wherein a draw point (3) is according to the fracture situation setting that is inclined upwardly, and it is upper that its tail end is fixed on single cavity steel needle fixing clamp (7), and tip is connected on art bone (17); Other five draw points and the vertical setting of drawing-off pressurization connecting rod (1), it is upper that its tail end is separately fixed at five double flute steel needle fixing clamps (8), and tip is connected on art bone (17).
8. adopt the near end of thighbone lever configuration bone external fixator that tubulose drawing-off pressurization connecting rod control device is assembled into described in claim 1～5 any one, it is characterized in that: this holder is comprised of two drawing-offs pressurization connecting rods (1), eight single cavity steel needle fixing clamps (7) and four draw points (3);
Described two drawing-offs pressurization connecting rod (1) parallel arranged Rhizoma Atractylodis Macrocephalae bone (17) one sides, every drawing-off pressurization connecting rod (1) is by a sleeve pipe (4), a full thread connecting rod (5), and the nut (6) being connected on the full thread connecting rod (5) at sleeve pipe (4) two ends forms;
Wherein on the sleeve pipe (4) of a drawing-off pressurization connecting rod (1), be connected with two single cavity steel needle fixing clamps (7), and be directly connected with two single cavity steel needle fixing clamps (7) that remove screw rod (11) on the full thread connecting rod (5) of sleeve pipe (4) below; The connected mode of another root drawing-off pressurization connecting rod (1) is identical with the former;
Wherein two draw points (3) are according to the fracture situation setting that is inclined upwardly, and the single cavity steel needle fixing clamp (7) that its tail end is fixed on two sleeve pipes (4) is simultaneously upper, and tip is connected on art bone (17); Other two draw points and the vertical setting of drawing-off pressurization connecting rod (1), it is upper that its tail end is fixed on the upper direct-connected single cavity steel needle fixing clamp (7) of two full thread connecting rods (5) simultaneously, and tip is connected on art bone (17).
9. adopt the ring type triangle configuration hip joint that tubulose drawing-off pressurization connecting rod control device is assembled into described in claim 1～5 any one to rebuild a bone external fixator, it is characterized in that: this holder is combined with ring type, half-ring external fixators by two drawing-offs pressurization connecting rods (1), double flute steel needle fixing clamp (8), single cavity steel needle fixing clamp (7), screw thread half pin (21), full pins (22);
Described two drawing-offs pressurization connecting rods (1) each by a full thread connecting rod (5), sleeve pipe (4), and the nut (6) being connected on the full thread connecting rod (5) at sleeve pipe (4) two ends forms; Two full thread connecting rods (5) bottom is connected with the upper opening ring (15) of ring type, half-ring external fixator by universal joint (16), a described single cavity steel needle fixing clamp (7) is fixed on the sleeve pipe of drawing-off pressurization connecting rod (1) upside, screw thread half pin (21) tail end is connected with this single cavity steel needle fixing clamp (7), and the end of thread is fixed near end of thighbone; The sleeve pipe (4) that two double flute steel needle fixing clamps (8) are connected in the middle part of two drawing-off pressurization connecting rods (1) is upper, and screw thread half pin (21) tail end is connected with double flute steel needle fixing clamp (8), and the end of thread is fixed in femoral shaft;
Described ring type, half-ring external fixator comprise upper and lower two and half hole rings or full hole ring, between upper opening ring (15) and lower hole ring (19), are connected with connecting rod (18); Between upper opening ring (15) and a drawing-off pressurization connecting rod (1), be connected with arc bow (20), on upper opening ring (15), be connected with single cavity steel needle fixing clamp (7), screw thread half pin (21) tail end and this single cavity steel needle fixing clamp (7) are fixing, and the end of thread is fixed in femoral shaft; On lower hole ring (19), be connected with screw thread half pin (21) and full pin (22), full pin is through distal femur, and the end of thread and the distal femur of screw thread half pin are fixed.
10. the ring type triangle configuration hip joint that tubulose drawing-off pressurization connecting rod control device according to claim 9 is assembled into is rebuild bone external fixator, it is characterized in that: described connecting rod (18) adopts quick drawing-off bar, drawing-off bar includes threaded rod (18.1) fast, interior bar cover (18.2) and outer bar cover (18.3), described threaded rod (18.1) is from top to bottom inserted in interior bar cover (18.2), described interior bar cover (18.2) is from top to bottom inserted in outer bar cover (18.3), the lower end of described outer bar cover (18.3) is provided with the threaded connector (18.12) that is connected use with hole ring, described threaded connector (18.12) is arranged on the internal thread hole of outer bar cover lower end,
The upper end of described interior bar cover (18.2) is provided with flanging (18.13), and be provided with pressure controller between the upper end of interior bar cover (18.2) and threaded rod (18.1), described pressure controller is by adjusting sleeve (18.4), pressure controls cover (18.6) and Compress Spring (18.5) forms, the upper end of described adjusting sleeve (18.4) is threaded with threaded rod (18.1), the bottom of adjusting sleeve (18.4) is controlled cover (18.6) with pressure and is threaded, described pressure is controlled cover (18.6) and is movably set on the interior bar cover (18.2) of flanging (18.12) downside, described Compress Spring (18.5) is enclosed within on the threaded rod (18.1) between the upper end of adjusting sleeve (18.4) and the flanging (18.13) of interior bar cover (18.2),
The medial wall, upper end of described outer bar cover (18.3) is provided with taper uncovered (18.7), the lateral wall, upper end of outer bar cover (18.3) is provided with external thread section (18.9), and be provided with lock-on connection between the upper end of outer bar cover (18.3) and interior bar cover (18.2), described lock-on connection is comprised of taper elastic ring (18.8) and locking nut (18.10), described locking nut (18.10) is by external thread section (18.9) upper end of bar cover (18.3) outside that is threaded, described taper elastic ring (18.8) is inserted in taper uncovered (18.7), be clipped between interior bar cover (18.2) and outer bar cover (18.3), and the upper end of taper elastic ring (18.8) fixes on the upper end of locking nut (18.10),
Between the medial wall of the lateral wall, bottom of described interior bar cover (18.2) and outer bar cover (18.3), be provided with bar cover pad (18.11), the medial surface of bar cover pad (18.11) is provided with union joint (18.19), described interior bar cover (18.2) is provided with the locating hole (18.20) corresponding with union joint (18.19), and bar cover pad (18.11) is fixed on interior bar cover (18.2) by union joint (18.19) is relative with locating hole (18.20);
The lower end of described outer bar cover (18.3) is provided with gimbal suspension, gimbal suspension is by Connection Block (18.18), hinged otic placode (18.17), middle pin (18.16), axle sleeve (18.15) and bearing pin (18.14) form, wherein hinged otic placode (18.17) is arranged on the lower end of outer bar cover (18.3), axle sleeve (18.15) and bearing pin (18.14) are articulated and connected on hinged otic placode (18.17) by middle pin (18.16), Connection Block (18.18) is articulated and connected again on bearing pin (18.14), described threaded connector (18.12) is arranged on Connection Block (18.18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551307.1U CN203425021U (en) | 2013-09-06 | 2013-09-06 | Tubular drawing pressurizing connection rod control device and external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551307.1U CN203425021U (en) | 2013-09-06 | 2013-09-06 | Tubular drawing pressurizing connection rod control device and external fixator |
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| Publication Number | Publication Date |
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| CN203425021U true CN203425021U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320551307.1U Withdrawn - After Issue CN203425021U (en) | 2013-09-06 | 2013-09-06 | Tubular drawing pressurizing connection rod control device and external fixator |
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| CN (1) | CN203425021U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417280A (en) * | 2013-09-06 | 2013-12-04 | 江苏广济医疗科技有限公司 | Tubular traction pressurization connecting rod control device and outer-bone fixing device |
| CN104055547A (en) * | 2014-06-26 | 2014-09-24 | 苏州欣荣博尔特医疗器械有限公司 | Minimally invasive thighbone large retractor |
| CN106236226A (en) * | 2014-10-24 | 2016-12-21 | 吴昊 | It is suitable for the ring spring shape exter-nal fixer of comminuted fracture |
| CN110742681A (en) * | 2019-11-22 | 2020-02-04 | 常州好利医疗科技有限公司 | External fixing unit and external fixer for hands and feet |
| CN115998398A (en) * | 2023-02-14 | 2023-04-25 | 北京爱康宜诚医疗器材有限公司 | Bone fixing device |
-
2013
- 2013-09-06 CN CN201320551307.1U patent/CN203425021U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417280A (en) * | 2013-09-06 | 2013-12-04 | 江苏广济医疗科技有限公司 | Tubular traction pressurization connecting rod control device and outer-bone fixing device |
| CN103417280B (en) * | 2013-09-06 | 2015-05-13 | 江苏广济医疗科技有限公司 | Tubular traction pressurization connecting rod control device and outer-bone fixing device |
| CN104055547A (en) * | 2014-06-26 | 2014-09-24 | 苏州欣荣博尔特医疗器械有限公司 | Minimally invasive thighbone large retractor |
| CN106236226A (en) * | 2014-10-24 | 2016-12-21 | 吴昊 | It is suitable for the ring spring shape exter-nal fixer of comminuted fracture |
| CN106236226B (en) * | 2014-10-24 | 2019-08-09 | 中南大学湘雅三医院 | It is suitable for the ring spring shape exter-nal fixer of comminuted fracture |
| CN110742681A (en) * | 2019-11-22 | 2020-02-04 | 常州好利医疗科技有限公司 | External fixing unit and external fixer for hands and feet |
| CN115998398A (en) * | 2023-02-14 | 2023-04-25 | 北京爱康宜诚医疗器材有限公司 | Bone fixing device |
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