CN206044922U - A kind of auxiliary device of hybrid-type lower limb bone surgery extension table - Google Patents

Abstract

The utility model discloses a kind of auxiliary device of hybrid-type lower limb bone surgery extension table, including ground supports structure, support component is installed in ground supports structure, the support component is included：Thigh support frame；Little leg support；For the Universal connector head connected between thigh support frame and little leg support；The big leg support being set up on thigh support frame；The shank bracket being set up on little leg support, the shank bracket and thigh tray chamber are provided with disjunct working place；Support the upper leg unit of thigh support frame；For driving the lifting of little leg support, and supporting the lifting support unit that little leg support swung around Universal connector head.For the patient of fracture of femoral neck, when Ipsilateral is put, obtain substantially stabilized against reducing patient's physical demandss and buck fever；And operator also can save muscle power by surgical stent, while facilitating the positioning of fracture of femoral neck position, the accuracy of " releasing down to insert " is substantially increased.

Description

A kind of auxiliary device of hybrid-type lower limb bone surgery extension table

Technical field

This utility model is related to a kind of bone surgery field, especially a kind of hybrid-type lower limb bone surgery extension table Auxiliary device.

Background technology

Shift-type fracture of femoral neck is one of difficult point of orthopaedic trauma treatment.It is multiple to close for shift-type fracture of femoral neck Based on the internal fixation treatment of position, for displaced type is fractured, when closed reduction is undesirable, it is contemplated that internal fixation, Operative incision may be selected hip joint anterior lateral cervical approach (Smith-Peterson otch) or hip joint lateral approach (Watson-Jones Otch)；For senile patients with fracture of neck, it is also contemplated that apply hip joint replacement technique, but in general, treatment is shifted Type fracture of femoral neck is still based on closed reduction internal fixation.The mode of interior fixation is parallel with many pieces (usually 3 pieces) at present Based on hollow screw group, drive screws are passed through by neck of femur under guide pin guiding by femoral greater trochanter lower outer cortical bone Fracture face, the head of drive screws is screwed in femoral head bone, together with the afterbody expanded with drive screws and using many pieces of screw threads Nail plays a part of stable fracturing end jointly.But the enforcement of hollow screw group Internal fixation technology is on condition that the reset of fracture of femoral neck Technology, the height of quality of reduction are related to the stability of Ineffective internal fixation, and then can affect the prognosis of patients with fracture of neck.

At present, the design of bone surgery extension table and application are exactly in order to be able to good reset is obtained in operation.Orthopaedics By bed and towing bracket, this two parts is constituted operation extension table, and the tail end center of bed has a cylinder protruding upward to be referred to as perineum Post, the conflict by perineum post with human body pubis (patient lies supine position) in lower limb traction resets play a part of countertraction, Towing bracket then plays vertical with femoral shaft by the weight of subsidiary bracket support limb and using the pulling equipment in support afterbody The more consistent draw in axle (femoral shaft length) direction, by such design, effectively utilizes traction and has resisted lower limb The contractility of muscle, reaches the effect of " traction by pulling and extension " in manual reduction technology.

But clinical practice shows, carrying out resetting by existing operation extension table there are still larger difficulty.According to dissection Gain knowledge, the neck of femur longitudinal axis (neck of femur length) is not on same axis with the femoral shaft longitudinal axis, shape on both three dimensional structures Into collodiaphyseal angle, normal value between 110-140 °, 132 ° of male's average out to, 127 ° of women average out to.Because what fracture occurred Position is in neck of femur, and passes through lead that bone surgery extension table implemented based on the femoral shaft longitudinal axis, and vertical in neck of femur Draw on axle is more small and weak, and this can be had adverse effect on to the effect of reduction by traction.In clinical practice, often need First with the technology of " releasing down to insert ", that is, resist the mutual down of two fracture end of After femoral neck fracture and insert and cause " cripetura " abnormal Shape.The enforcement of the technology can first countertraction (can wrap thigh with an operative treatment towel laterally under conventional dorsal positions Upper end, carries out free-hand draw operations), be stepped up drawing strength, the lead and the neck of femur longitudinal axis are more consistent, to solve Except the down of the fracture of femoral neck broken ends of fractured bone is inserted, femoral shaft longitudinal traction (draw operations can be carried out by orthopedic traction bed) is then carried out, And then lifting restoring quality.In the sport technique segment of this " releasing intercalation ", experience and strength are purely relied on, particularly with operation Person itself strength carries out longitudinal axis traction to neck of femur, and because of individual variation, operator is in the controllability of strength, persistence and traction Deficiency is there is on direction often.Even if in fact, skillfully using aforesaid operations, the parking position accuracy to shift-type fracture of femoral neck Difficulty is remained, and resetting technique will be improved to some extent or be broken through, its key point is how really effectively to implement stock The lead of the bone neck longitudinal axis " traction by pulling and extension " consistent with fracture site compression direction, " traction by pulling and extension " actually all dislocation types The premise of reduction of the fracture technology implementation and basis.For fracture of femoral neck, current traction technique fails effectively to realize antagonism Adduction of the hip joint contract muscular group caused by two fracture sites mutual down insert.How existing operation traction bed structure is carried out again Design, to overcome the shortcomings of that above-mentioned resetting technique is a difficult problem.

Utility model content

In order to overcome the deficiencies in the prior art, this utility model provides a kind of so that neck of femur " traction by pulling and extension " is operated more Plus easily, the hybrid-type lower limb bone surgery extension table experience and force requirements of operator being greatly reduced during reset Auxiliary device.

This utility model solves the technical scheme adopted by its technical problem：A kind of hybrid-type lower limb bone surgery leads Draw the auxiliary device of bed, including ground supports structure, it is characterized in that, be also equipped with suffering from for supporting in the ground supports structure The support component of lower limb, the support component are included：

The thigh support frame being set up in ground supports structure；

The little leg support being set up in ground supports structure；

Universal connector positioned at thigh support frame and little leg support adjacent regions and for connecting between thigh support frame and little leg support Head；

For the big leg support laid for thigh, the big leg support is set up on thigh support frame, and set between thigh support frame There is interval；

For the shank bracket laid for shank, the shank bracket is set up on little leg support, and set between little leg support There are interval, shank bracket and thigh tray chamber to be provided with disjunct working place；

Be installed between thigh support frame and ground supports structure, and for supporting the upper leg unit of thigh support frame；

For driving the lifting of little leg support, and supporting the lifting support unit that little leg support swings around Universal connector head, this Lifting support unit is installed between little leg support and ground supports structure.

The beneficial effects of the utility model are：During operation, patient body position is put as calculi position, Ipsilateral lower limb for strong side lower limb Thigh and shank are placed on big leg support and shank bracket respectively, Ipsilateral position is adjusted so as to are remained outer under neutral position 30 ° or so of exhibition.In order to be able to effectively implement the traction to the neck of femur longitudinal axis, this auxiliary device can by adjust thigh support frame with it is little Relative position between leg support and little leg support and lifting support unit, realizes following Ipsilateral position：First by the position of Ipsilateral Hip frog leg position (lower limb are presented hip abduction outward turning knee joint flexing position) is changed to, under this position, because there is leaning forward for neck of femur Angle (angle that the line in the longitudinal axis and femur of human femur under loading neck between ectocondyle midpoint is formed is top rake, also known as torsion angle, Normal range is between 12 ° -15 °), ankle can be taken to be slightly less than knee joint position so that the plane formed by neck of femur, femoral shaft (referred to as：" neck does plane ") it is substantially vertical with ground, thus more easily can implement one vertically in upper thigh A pull strength (lead in face：Straight down), while the traction to the femoral shaft longitudinal axis then utilizes Bone traction on condyle of femur (draw point is on human coronary face, left and right is up and down essentially symmetrically through the lower end of femoral shaft), with reference to traction bow, pull rope, cunning Wheel, weight or other similar devices that can implement to draw, traction (No. two traction sides being implemented on femoral shaft y direction To：Along femoral shaft y direction).So led by the collaboration in both direction (lead and No. two leads) Draw, realize the traction to the neck of femur longitudinal axis, and then reach preferably traction effect.Wherein lift support unit to stretch using conventional Contracting bar, hydraulic cylinder or cylinder etc., and these equipment all carry flexible rear latch functions, automatically reply original state because of removing after power (the involved expansion link locking function in this place), here is not further repeated to locking structure, and this part is common knowledge.It is special It is not that shank is bound to after shank bracket, when position and angle generation relatively change of the shank with little leg support, shank The rotation that thigh femoral shaft will be driven circumferential, the longitudinal axis angle for circumferentially rotating to adjust neck of femur by femoral shaft.Distraction procedure Middle utilization C-arm (X-ray machine) is had an X-rayed to fracture of femoral neck end reset case, fine-tuning " neck does plane " according to perspective situation With ground formed angle, when neck of femur y direction straight down when, i.e., in optimal surgery location, now by stock It is key to apply a pull strength straight down and No. two pull strengths along femoral shaft y direction, you can to allow original slotting in down Two fracture ends of state are separated, then by the longitudinal traction of femoral shaft, lifting restoring etc.Compared to traditional maneuver Speech, auxiliary of this utility model by surgical stent, for the patient of fracture of femoral neck, obtain fully steady when Ipsilateral is put It is fixed against reducing patient's physical demandss and buck fever；And operator also can save muscle power by surgical stent, while convenient The positioning of fracture of femoral neck position, substantially increases the accuracy of " releasing down to insert ".In addition, because traction is more abundant, and it is complete Complete to be almost not required to the strength by operator, keep the anxiety of hip joint periarticular capsule by means of surgical stent, this will The effect for being conducive to the reset of the broken ends of fractured bone and being maintained after resetting, is that follow-up closed thread nail is inserted neck of femur and creates good Condition.Working place is a space for keeping for operative doctor, it is to avoid because the impact interference operation of bracket or miscellaneous part Enforcement.And aforesaid interval is also necessary, reason is equally to arrange interval, and the enforcement for operation provides enough spaces,

Upgrading support unit one of which technical scheme is that upgrading support unit includes：It is installed on little leg support and ground Between supporting construction, and for driving the shank lifters of little leg support lifting；Be installed between little leg support and shank lifters, and The sliding track mechanism of relative slip is done for limiting little leg support in shank lifters；Between the sliding track mechanism and shank lifters Cooperation is hinged by horizontally disposed first jointed shaft.The lifting of little leg support is realized by shank lifters, simultaneously as When little leg support is lifted, the relative position between little leg support and shank lifters can change, therefore little leg support and shank A sliding track mechanism is there is provision of between lifters, during so as to ensureing that little leg support is lifted, can also between little leg support and shank lifters Keep closely connecting, and then ensure that shank lifters play a supportive role to little leg support.In this surgical stent, sliding track mechanism is normal The sliding track mechanism of rule, mainly offers chute of the extension line through Universal connector head in shank frame bottom, is provided with the chute Slide block, the slide block are hinged cooperation with shank lifters；As little leg support is connected with Universal connector head as fulcrum with thigh support frame, Simultaneously be limited to shank lifters can only in the vertical direction moved, therefore little leg support can only in the vertical direction around ten thousand Swung to adapter piece, this can just meet the placement of Ipsilateral position.

Wherein, shank lifters are any one in expansion link mechanism, hydraulic cylinder or cylinder.Expansion link mechanism is very normal Rule, it is general to be constituted by mutually two bars of socket and the keeper for limiting relative position between two bars.Hydraulic stem is gentle Cylinder has stronger power source, supports the power of shank more sufficient.Certainly, shank lifters can also adopt screw body, gear Mechanism etc. other be used for lifting prior art.

Upgrading support unit another kind technical scheme is, lifting support unit is hydraulic cylinder, hydraulic cylinder axial direction one end and Shank frame bottom is hinged cooperation, and the axial other end is hinged cooperation with ground supports structure.The effect of hydraulic cylinder is little except realizing Outside the lifting of leg support, moreover it is possible to support little leg support, and coordinate little leg support to play a supportive role when being connected with Universal connector head, protect Stablizing when barrier shank support works.Certainly, hydraulic cylinder can also be substituted for the stretching with axial function such as expansion link or cylinder Contracting part, and these equipment all carry latch functions after axial stretching.

It is fixed with the thigh support frame for supporting the carrier bar of big leg support, between big leg support and carrier bar, passes through water Flat the second jointed shaft for arranging is hinged cooperations, is additionally provided with for slowing down the big leg support of restriction around the between the big leg support and carrier bar The buffer limit unit that two jointed shafts are rotated.Big leg support can be rotated around the second jointed shaft, so as to adjust femoral shaft Angle so that big leg support opposing brackets bar is realized swinging, while by buffer limit unit, can effectively slow down shake during swing Swing, not only reduce the injury of suffering limb, and facilitate operator to be finely adjusted the position of femur and angle, will not be big because of ajusting It is firmly excessive during lower limb, so as to cause the secondary injury at fracture of femoral neck.

Wherein, buffer limit unit includes arc shrouds and the bow for being mutually inserted cooperation, is provided with arc shrouds For the buffer spring of arc boom end top pressure, arc shrouds and bow place camber line with the second jointed shaft as the center of circle, arc End on shape sleeve pipe away from bow is fixedly connected with big leg support or carrier bar, on bow away from arc shrouds end Then it is fixedly connected with corresponding carrier bar or big leg support；Second jointed shaft is perpendicular with arc shrouds place plane.Arc sleeve Cooperation is mutually inserted between pipe and bow, and the second jointed shaft is perpendicular with arc shrouds place plane, thus limits big leg support Frame can only swing (track that i.e. big leg support swings in arc shrouds institute in the plane) in the plane in arc shrouds, and The severe degree for swinging is reduced by the buffer spring in arc shrouds, it is different according to the elasticity of buffer spring, not only protect Card can be finely adjusted when femur locations and angle is adjusted, and with certain cushioning effect, will not be because action be excessive Cause secondary injury.Wherein, arc shrouds can be fixed with big leg support, and bow can be fixed with carrier bar；Or arc Sleeve pipe is fixed with carrier bar, and bow can be fixed with big leg support, two schemes equivalent.

In addition, being gone back between the big leg support and carrier bar by secondary Universal connector head connection at the top of big leg support and carrier bar Buffer limit unit is provided with, the buffer limit unit includes：It is opened in thigh bracket base and centered on secondary Universal connector head Upper annular guide channel；Be arranged in annular guide channel, and the upper fixture block that is slidably matched with upper annular guide channel；It is opened in carrier bar week On wall, and around the axially arranged lower annular guide channel of carrier bar；It is arranged in lower annular guide channel, and slides with lower annular guide channel and match somebody with somebody The lower fixture block for closing；The arc shrouds and bow of cooperation are mutually inserted, arc shrouds and bow place camber line are with secondary ten thousand It is the center of circle to adapter piece；Be placed in arc shrouds, and for the buffer spring of arc boom end top pressure；In arc shrouds away from The end of bow is fixedly connected with upper fixture block or lower fixture block, and the end on bow away from arc shrouds is then blocked with corresponding down Block or upper fixture block are fixedly connected.Arc shrouds and bow place plane are that when big leg support swings track place plane is (below Referred to as, trajectory plane), upper fixture block can slide in upper annular guide channel, and lower fixture block can slide in lower annular guide channel, pass through Fixture block and lower fixture block in adjustment, make both in circumferential 360 ° (360 ° of upper annular guide channel place horizontal plane) in same vertical Plane, the perpendicular namely trajectory plane place face.Now big leg support is fulcrum towards any one with secondary Universal connector head Individual direction inclines, so as to ensure that femur can be adjusted in any one angle, it is ensured that patient has more adjustment directions optional, The selection of more correction solutions is also provided for operator.

Upper leg unit is any one in expansion link mechanism, hydraulic cylinder or cylinder.

For most of orthopedic traction bed, their only first halfs are couched for patient, and latter half is It is combined by the support of multi-form, in order to adapt to the application of most of orthopedic traction bed, therefore the front end of thigh support frame It is additionally provided with the keeper for fixing with the lower limb bone surgery extension table.The keeper can be for locking screw rod, Or nut or flange or clamp etc., as long as belong to existing and conventional, fixed locating element structure each fall within it is practical New protection domain.

Auxiliary device also includes Magnetic force tracting device, and the Magnetic force tracting device includes being placed in the electricity below big leg support Magnet and the magnet block with the electromagnetism mates.The principle that coil produces magnetic field is used the power on, placement one is adjustable on ground The electromagnet of control size of current, on vertical direction, in thigh on fragment position fix multiple magnet blocks, electromagnet using restraining Magnetic field suction magnet block is utilized after energization, the pull strength to epimere Relative vertical in thigh is produced, and is adjusted by regulating and controlling electric current The size of whole vertical pull strength.Movement of the energization magnet in horizontal level, the also direction of fine-tuning pull strength.In this electromagnetic force In the presence of, thigh (femoral shaft) will realize the downward fortune of near end of thighbone with junction point between big leg support and carrier bar as fulcrum It is dynamic, so as to reach the effect of traction.In addition, the advantage of Magnetic force tracting device traction is, will not be as other kinds of traction handss Duan Ru：Weight hangs on upper thigh or using vertical telescopic traction apparatuss to spaces such as operation technique, C-arm pivot operations On generation hinder.

Description of the drawings

Structural representations of the Fig. 1 for this utility model embodiment one.

Fig. 2 amplifies for the A portions of Fig. 1, perspective view.

Fig. 3 amplifies for the B portions of Fig. 1, perspective view.

Upward views of the Fig. 4 for two big leg support of this utility model embodiment.

Partial enlargement, perspective view of the Fig. 5 for embodiment two.

Structural representations of the Fig. 6 for this utility model embodiment three.

Specific embodiment

Below in conjunction with the accompanying drawings this utility model is further described：

Embodiment one：As shown in Figure 1, 2, 3, the present embodiment includes ground supports structure 1, installs in ground supports structure 1 There is the support component for suffering from lower limb support for side, carriage assembly can be a set of or two sets, injured situation be moved back with specific reference to patient Depending on.The support component includes the thigh support frame 21 being set up in ground supports structure 1, and also setting up on thigh support frame 21 has For the big leg support 211 that thigh is laid；Upper leg unit 22 is also equipped between thigh support frame 21 and ground supports structure 1, should Upper leg unit 22 is used to support thigh support frame 21.Also setting up in ground supports structure 1 has little leg support 31, the little leg support On also set up have for shank lay shank bracket 311, be also equipped with hydraulic cylinder between little leg support 31 and ground supports structure 1 32, the hydraulic cylinder 32 is used to support little leg support 31, and for driving the elevating movement of little leg support 31.Wherein, big leg support Interval is provided between 211 and thigh support frame 21, interval between shank bracket 311 and little leg support 31, is provided with, and shank bracket 311 and big Disjunct working place is provided between leg support 211, the working place is a space for keeping for operative doctor, it is to avoid because Bracket or the enforcement of other equipment interference operation.Aforesaid interval is also necessary, and reason is equally to arrange interval, is operation Implement to provide enough spaces, between thigh support frame 21 and little leg support 31, adjacent regions are also equipped with Universal connector head 4, and this ten thousand It is fixed with thigh support frame 21 and little leg support 31 to 4 both ends of adapter piece respectively, little leg support 31 borrows Universal connector head 4 Adjustment up and down spatially is realized, realizes that the angle of the femur being connected with shank (includes stock by the angle adjustment of shank Bone circumference angle) and position adjustment.Universal connector head 4 is universal joint, and the structure has been very ripe technology at present, Will not be described here.Ground supports structure 1 can be divided into thigh ground supports structure and shank ground supports structure, and thigh ground Face supporting construction and thigh support frame 21 can be mutually assembled or be assembled, it is also possible to which integrative-structure, i.e. thigh ground supports are tied Structure is the spider that Stabilization is played at a part for thigh support frame 21, or perhaps thigh support frame 21；Shank ground supports Structure and little leg support 31 connect, and in the same manner, shank ground supports structure and little leg support 31 can be mutually assembled or be assembled, Can also integrative-structure.Upper leg unit 22 is rod-like structure, further, it is also possible to adopt hydraulic cylinder, cylinder or expansion link etc. Part.

A sliding track mechanism 5 is also equipped between little leg support 31 and hydraulic cylinder 32, hydraulic cylinder 32 is axially vertically disposed, cylinder body Positioned at lower section, hydraulic stem is above, and little leg support 31 is installed on the top of hydraulic stem by sliding track mechanism 5.The sliding track mechanism 5 For conventional slide rail or guide rail mechanism, mainly chute 51 is offered in 31 bottom of little leg support, 51 extension line of chute is through ten thousand To adapter piece 4, in chute 51, slide block 52 is provided with, the slide block 52 is hinged cooperation with 32 hydraulic rod end of hydraulic cylinder, and the jointed shaft is First jointed shaft.Hydraulic cylinder 32 can also be expansion link mechanism or cylinder, and upper leg unit 22 can be common support Bar, it would however also be possible to employ expansion link mechanism, hydraulic cylinder or cylinder.As little leg support 31 is fallen by action of gravity, therefore slide block 52 When being arranged in chute 51, it is not easy to slippage situation occur.Certainly, in order to ensure overall stable and reliability, in chute 51 Opening at can arrange to the projecting inward position-limited edge of chute 51, so as to limit the abjection from chute 51 of slide block 52.

It is fixed with thigh support frame 21 for supporting the carrier bar 212 of big leg support 211, big leg support 211 and carrier bar Cooperation is hinged by horizontally disposed second jointed shaft between 212, is additionally provided with for subtracting between the big leg support 211 and carrier bar 212 Slow big leg support 211 around the second jointed shaft rotate when speed buffer limit unit 6.Second jointed shaft may be located at carrier bar At the top of 212, it is also possible to which, positioned at the middle part of carrier bar 212, particular location is unrestricted.Buffer limit unit 6 includes being mutually inserted The arc shrouds 61 and bow 62 of cooperation, lay the buffer spring for 62 end top pressure of bow in arc shrouds 61 63, arc shrouds 61 and 62 place camber line of bow are centered on the second jointed shaft.Away from bow 62 in arc shrouds 61 End be connected with big leg support 211, the end on bow 62 away from arc shrouds 61 is connected with 212 sidepiece of carrier bar.Greatly Leg support 211 can be rotated around the second jointed shaft, so as to adjust the angle of femoral shaft, and 211 opposing brackets of big leg support When bar 212 swings, by buffer limit unit 6, stablizing when can effectively improve swing, facilitate operator to femur locations and angle The adjustment of degree, will not because of it is firmly excessive and to causing secondary injury at fracture of femoral neck.And arc shrouds 61 and bow 62 Between mutually socket coordinate, namely limit big leg support 211 and can only be had in 62 place plane of arc shrouds 61 and bow Limit ground swings, and reduces the severe degree for swinging by the buffer spring 63 in arc shrouds 61 or in bow 62, this Be able to also ensure, for simply finely tuning when femur locations and angle adjustment, secondary injury will not be caused because action is excessive.It is slow Rush position-limiting unit 6 and carrier bar 212 can also be installed on using rubber, block made by silica gel elastomeric material, the block And the junction between big leg support 211, block is fixed in carrier bar 212, and lean with 211 bottom of big leg support, is used In supporting big leg support 211..Buffer limit unit 6 now can be directly fixed on 212 perisporium of carrier bar, it is also possible to covered Outside carrier bar 212.

For most of orthopedic traction bed, their only first halfs are couched for patient, and latter half is It is combined by the support of multi-form, in order to adapt to the application of most of orthopedic traction bed, therefore the front end of surgical stent It is additionally provided with keeper 7.The keeper 7 can be the screw rod or nut or flange or clamp etc. for locking, as long as belonging to Fixed installation structure that is existing and conventional, fixing each falls within protection domain of the present utility model.

The present embodiment also includes Magnetic force tracting device 8, and the Magnetic force tracting device 8 includes being placed under big leg support 211 The electromagnet 81 of side, and the magnet block 82 that is engaged with the electromagnet 81.The principle that coil produces magnetic field is used the power on, on ground Place the electromagnet 81 of a controllable size of current, in vertical corresponding thigh on fragment position fix multiple using restraining Magnet block 82, electromagnet 81 utilize magnetic field suction magnet block 82 after being powered, and produce the pull strength to epimere Relative vertical in thigh, And the size of vertical pull strength is adjusted by regulating and controlling electric current.Movement of the energization magnet 81 in horizontal level, also fine-tuning traction The direction of power.In the presence of electromagnetic force, thigh (femoral shaft) will with junction between big leg support 211 and carrier bar 212 as Point, realizes the downward motion of near end of thighbone by buffer limit unit 6, reaches the effect of traction.Herein, magnet block 82 can be Permanent magnet, or electromagnet, its selectivity are multifarious.Magnetic force tracting device 8 traction advantage be, will not be as which His traction means of type are such as：Weight hangs on upper thigh or using vertical telescopic traction apparatuss to operation technique, C-arm The generation spatially such as pivot operation hinders.

In this utility model, during operation, patient body position is put as calculi position for strong side lower limb, and Ipsilateral lower limb are by thigh and little Lower limb is placed on big leg support 211 and shank bracket 311 respectively, adjusts Ipsilateral position so as to remain 30 ° of abduction under neutral position Left and right.In order to be able to effectively implement the traction to the neck of femur longitudinal axis, can be by adjusting big leg support 211 and carrier bar 212, and little Change in location between leg support 31 and hydraulic cylinder 32, realizes following Ipsilateral position：The position of Ipsilateral is changed to into hip frog leg position first (lower limb are presented hip abduction outward turning knee joint flexing position), under this position, because there is top rake (the human femur under loading neck of neck of femur Longitudinal axis and femur in the angle that formed of line between ectocondyle midpoint be top rake, also known as torsion angle, normal range exists Between 12 ° -15 °), ankle can be taken to be slightly less than knee joint position so that the plane formed by neck of femur, femoral shaft is (referred to as：" neck is done Plane ") it is substantially vertical with ground, thus more easily can implement a pull strength perpendicular to the ground in upper thigh (lead：Straight down), while then using Bone traction on condyle of femur, (draw point is in human body to the traction of the femoral shaft longitudinal axis On coronalplane, left and right up and down essentially symmetrically through femoral shaft lower end), with reference to traction bow, pull rope, pulley, weight or its Its similar device that can implement to draw, traction (No. two leads being implemented on femoral shaft y direction：It is vertical along femoral shaft Direction of principal axis).So drawn by the collaboration in both direction (lead and No. two leads), realized to femur The traction of the neck longitudinal axis, and then reach preferably traction effect.In this surgical stent, sliding track mechanism 5 can realize that little leg support 31 can Sliding is realized on 32 piston rod top of hydraulic cylinder, as little leg support 31 is connected by fulcrum of Universal connector head 4 with thigh support frame 21 Connect, at the same be limited to hydraulic cylinder 32 can only in the vertical direction moved, therefore little leg support 31 can only in the vertical direction Swung around Universal connector head 4, and coordinated sliding track mechanism 5, can just be met the accurate placement of Ipsilateral position.Particularly by shank After being bound to little leg support 31, when the relative change that shank occurs position and angle with little leg support 31, shank will drive The circumferential rotation of thigh femoral shaft, the longitudinal axis angle for circumferentially rotating to adjust neck of femur by femoral shaft.C is utilized in distraction procedure Arm (X-ray machine) is had an X-rayed to fracture of femoral neck end reset case, according to perspective situation fine-tuning " neck does plane " and ground The angle of formation, when neck of femur y direction straight down when, i.e., in optimal surgery location, now by femur dry application Plus a pull strength straight down and No. two pull strengths along femoral shaft y direction, you can allow the original down that is in insert state Two fracture ends are separated, then by the longitudinal traction of femoral shaft, lifting restoring etc.For traditional maneuver, this reality With the new auxiliary by equipment, for the patient of fracture of femoral neck, when Ipsilateral is put, obtain substantially stabilized against drop Low patient's physical demandss and buck fever；And operator also can save muscle power by surgical stent, while facilitating fracture of femoral neck The positioning of position, substantially increases the accuracy of " releasing down to insert ".In addition, because traction is more abundant, and completely by means of handss Art support, is almost not required to the strength by operator, can keep the anxiety of hip joint periarticular capsule, and this is beneficial to the broken ends of fractured bone Reset and the effect that is maintained after resetting, be that follow-up closed thread nail is inserted neck of femur and creates good condition.

Embodiment two：As shown in Figure 4,5, with the difference of embodiment one it is：At the top of big leg support 211 and carrier bar 212 Connected by secondary Universal connector head 91, between the big leg support 211 and carrier bar 212, be additionally provided with buffer limit unit 6, the buffering is limited Bit location 6 includes：It is opened in 211 bottom of big leg support and the upper annular guide channel 92 centered on secondary Universal connector head 91；Card sets In upper annular guide channel 92, and the upper fixture block 93 that is slidably matched with upper annular guide channel 92；Be opened on 212 side wall of carrier bar, and Around the axially arranged lower annular guide channel 94 of carrier bar 212；It is arranged in lower annular guide channel 94, and slides with lower annular guide channel 94 The lower fixture block 95 for coordinating；Arc shrouds 61 and bow 62 that mutually socket coordinates, arc shrouds 61 and bow 62 be with Arc tube centered on secondary Universal connector head 91；Be placed in arc shrouds 61 or bow 62, and for corresponding bow 62 Or the buffer spring 63 of 61 top pressure of arc shrouds；End in arc shrouds 61 away from bow 62 is connected with upper fixture block 93, End on bow 62 away from arc shrouds 61 is connected with lower fixture block 95.Arc shrouds 61 and 62 place plane of bow are big 21 swinging track place plane (hereinafter referred to as, trajectory plane) of leg support, upper fixture block 93 are slided in upper annular guide channel 92, lower card Block 95 slides in lower annular guide channel 94, fixture block 93 and lower fixture block 95 in adjustment, makes both in circumferentially 360 ° in same perpendicular In straight plane, namely coincide with trajectory plane, now thigh support frame 21 can be fulcrum towards any with secondary Universal connector head 91 One direction inclines, and so as to ensure that femur can be adjusted in any one angle, provides more correction solutions for operator Select.For the present embodiment, upper fixture block 93 is located at upper annular guide channel 92 by jacking force upwards, and lower fixture block 95 is located at down Direction is subject in annular guide channel 94 towards the jacking force in lower annular guide channel 94, therefore upper fixture block 93 and lower fixture block 95 will not be from Upper annular guide channel 92 and lower annular guide channel 94 are deviate from.Certainly, in order to ensure the stability of work, can be with upper annular guide channel 92 With the position-limited edge that extends towards in groove is set at the notch of lower annular guide channel 94, thus limiting the motion of each fixture block.

Embodiment three：As shown in fig. 6, with the difference of embodiment one be, lifting support unit is hydraulic cylinder 32b, the liquid Cylinder pressure 32b axial directions one end (piston rod end) is hinged cooperation, the hydraulic cylinder 32b axial directions other end (cylinder body with 31 bottom of little leg support End) cooperation is hinged with ground supports structure 1.The effect of hydraulic cylinder 32b is in addition to realizing the lifting of little leg support 31, moreover it is possible to Little leg support 31 is supportted, and coordinates little leg support 31 to play a supportive role when being connected with Universal connector head 4, ensure that little leg support 31 works When stablize.Certainly, hydraulic cylinder 32b can also be substituted for the extensible member with axial function such as expansion link or cylinder, and these Equipment all carries latch functions after axial stretching.In addition, the installation number of hydraulic cylinder 32b, expansion link or cylinder etc. can be many It is individual, by cooperating to each other, ensure the stability of little leg support 31 to greatest extent.

Claims (10)

1. a kind of auxiliary device of hybrid-type lower limb bone surgery extension table, including ground supports structure, is characterized in that, described It is also equipped with ground supports structure for supporting the support component for suffering from lower limb, the support component to include：

The thigh support frame being set up in ground supports structure；

The little leg support being set up in ground supports structure；

Universal joint positioned at thigh support frame and little leg support adjacent regions and for connecting between thigh support frame and little leg support Part；

For the big leg support laid for thigh, the big leg support is set up on thigh support frame, and between being provided with between thigh support frame Every；

For the shank bracket laid for shank, the shank bracket is set up on little leg support, and between being provided with between little leg support Disjunct working place is provided with every, shank bracket and thigh tray chamber；

Be installed between thigh support frame and ground supports structure, and for supporting the upper leg unit of thigh support frame；

For driving the lifting of little leg support, and supporting the lifting support unit that little leg support swung around Universal connector head, the lifting Support unit is installed between little leg support and ground supports structure.

2. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that, the liter Drop support unit includes：

Be installed between little leg support and ground supports structure, and for driving the shank lifters of little leg support lifting；

It is installed between little leg support and shank lifters, and relative slip is done in shank lifters for limiting little leg support Sliding track mechanism；

Cooperation is hinged by horizontally disposed first jointed shaft between the sliding track mechanism and shank lifters.

3. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 2, is characterized in that：It is described little Lower limb lifters are any one in expansion link mechanism, hydraulic cylinder or cylinder.

4. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that, the liter Drop support unit is hydraulic cylinder, and the hydraulic cylinder axial direction one end is hinged cooperation, the axial other end and ground with shank frame bottom Support structure is hinged cooperation.

5. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that：It is described It is fixed with thigh support frame for supporting the carrier bar of big leg support, between big leg support and carrier bar, passes through horizontally disposed second Jointed shaft is hinged cooperation, is additionally provided with and rotates around the second jointed shaft for slowing down the big leg support of restriction between the big leg support and carrier bar Buffer limit unit.

6. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 5, is characterized in that：It is described slow Rushing position-limiting unit includes being mutually inserted the arc shrouds and bow of cooperation, is provided with for arc boom end top pressure in arc shrouds Buffer spring, arc shrouds and bow place camber line with the second jointed shaft as the center of circle, away from arc in arc shrouds The end of bar is fixedly connected with big leg support or carrier bar, on bow away from arc shrouds end then with corresponding carrier bar Or big leg support is fixedly connected；Second jointed shaft is perpendicular with arc shrouds place plane.

7. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that：It is described big By secondary Universal connector head connection at the top of leg support and carrier bar, between the big leg support and carrier bar, buffer limit list is additionally provided with Unit, the buffer limit unit include：

It is opened in thigh bracket base and the upper annular guide channel centered on secondary Universal connector head；

Be arranged in annular guide channel, and the upper fixture block that is slidably matched with upper annular guide channel；

Be opened on carrier bar perisporium, and around the axially arranged lower annular guide channel of carrier bar；

Be arranged in lower annular guide channel, and the lower fixture block that is slidably matched with lower annular guide channel；

The arc shrouds and bow of cooperation are mutually inserted, arc shrouds and bow place camber line are with secondary Universal connector head For the center of circle；

Be placed in arc shrouds, and for the buffer spring of arc boom end top pressure；

End in arc shrouds away from bow is fixedly connected with upper fixture block or lower fixture block, away from arc shrouds on bow End is then fixedly connected with corresponding lower fixture block or upper fixture block.

8. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that：It is described big Lower limb support unit is any one in expansion link mechanism, hydraulic cylinder or cylinder.

9. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that：It is described big The front end of leg support is additionally provided with the keeper for fixing with the lower limb bone surgery extension table.

10. the auxiliary device of hybrid-type lower limb bone surgery extension table according to claim 1, is characterized in that：It is described Auxiliary device also includes Magnetic force tracting device, the Magnetic force tracting device include being placed in the electromagnet below big leg support and With the magnet block of the electromagnetism mates.