CN209033038U - Multi-functional knee joint fixes device - Google Patents

Abstract

The utility model discloses a kind of fixed device of Multi-functional knee joint, including chassis and footrest, the chassis upper surface are provided with sliding rail along the longitudinal direction, and sliding is provided with slide on sliding rail, and the first snap-fit portion is provided on slide；The footrest corresponds to heel position and is provided with the second snap-fit portion, and footrest is detachably arranged in the first snap-fit portion by the second snap-fit portion, and can rotate around the first snap-fit portion.Technical solutions of the utility model structure is simple, it is easy to install and use quick, by the way that the leg of patient is placed in footrest, and it is fixed to each other by bandage or gauze winding, then footrest is mounted in the second snap-fit portion of slide by the first snap-fit portion, can mode manually or electrically drive slide to move along the longitudinal direction on the slide rail, to drive the leg stretching and beading of patient or position leg to any stretching and beading angle, to draw the leg of patient and bend and stretch knee joint, in order to which medical staff carries out corresponding operation.

Description

Multi-functional knee joint fixes device

Technical field

The utility model relates to the field of medical instrument technology, in particular to a kind of fixed device of Multi-functional knee joint.

Background technique

For knee of patients with osteoarthritis when carrying out knee joint surface replacement operation, most surgical procedures is in knee Joint, which is bent, to be gone to complete under state, is especially needed by knee joint extreme buckling, at this moment in tibial plateau osteotomy, installation prosthese The ankle for needing an assistant to hold patient is fixed, and maintains knee joint in flexion position, convenient for completing operation, this both takes people Power, and influence operator's operation；In addition, often needing assistant to close in knee in fracture of tibial plateau open reduction, internal fixation operation It saves buckling position and retracts joint space, in order to which patient looks at inspection operation side tibial plateau articular surface straight during the reduction of the fracture It is not only laborious to draw ankle and foot by assistant, but also is difficult to maintain to draw for the integrality of the case where fracture and meniscus；Furthermore It is also carried out in knee sprung position during fracture of tibia closed reduction, intramedullary nail internal fixation operation, especially in the reduction of the fracture It needs to carry out traction of taking advantage of a situation in ankle and foot in the process, helps fracture end reduction, and maintain the position after resetting, facilitate insertion into hospital guide And intramedullary nail.Some present surgical doctors put a stop washer on operating bed, and ankle is placed in stop washer after buckling knee joint The fixed effect of bending knee is had reached, but this stop washer position is fixed, is easy displacement, and without traction function.

Utility model content

The purpose of this utility model is that solving deficiency in the prior art at least to some extent, provide a kind of multi-functional Knee joint fixes device.

To achieve the above object, the fixed device of Multi-functional knee joint provided by the utility model, comprising:

Chassis, the chassis upper surface are provided with sliding rail along the longitudinal direction, and sliding is provided with a slide, institute on the sliding rail It states and is provided with the first snap-fit portion on slide；

Footrest, the footrest are used to be fixed on the leg of patient, and the footrest corresponds to heel position and is provided with the second clamping Auxiliary section, the footrest are detachably arranged in first snap-fit portion by second snap-fit portion, and can It is rotated around first snap-fit portion.

It preferably, include two snap-gauges being oppositely arranged on the slide, first snap-fit portion includes opposite opens The card slot being located on two snap-gauges, the card slot runs through the two sides of the snap-gauge, and is equipped with the card extended along the longitudinal direction The opening portion holding portion and being connected to the holding section middle part；Second snap-fit portion includes from the heel position to two sides The cylindrical protrusions protruded respectively, the diameter of the cylindrical protrusions are less than the opening portion and are caught in institute by the opening portion The front end or rear end of holding section are stated, to realize the detachable installation in first snap-fit portion and the second snap-fit portion.

Preferably, the foot bottom of the footrest is fixed with a fixed plate, less than two cards of width of the fixed plate The spacing of plate, one end extends to the heel position, and fixation is equipped with an axis extended in left-right direction, the axis Both ends be pierced by the part of the fixed plate and be respectively formed the cylindrical protrusions.

Preferably, the front bulkhead and aft bulkhead of the holding section are semi circular surface, and the diameter of the semi circular surface be greater than or Equal to the diameter of the cylindrical protrusions.

Preferably, at least two card slots are respectively arranged on each snap-gauge, it is described on two snap-gauges At least two card slots correspond, and two cylindrical protrusions in the footrest can be caught in opposite on described two snap-gauges respectively In two card slots.

Preferably, it is also respectively provided at left and right sides of the slide and drives the slide along sliding rail side convenient for medical staff The locking member for being fixed on sliding seat locking on the sliding rail is provided with to the handle of sliding, and on the slide.

Preferably, the regular polygon card hole at least five sides is offered in the middle part of each snap-gauge, the handle is bar Shape structure, the connection-peg that one end is adapted to the card hole, the other end are vertically bent to form grip part, and the handle passes through described It is circumferentially fixed that connection-peg is removably inserted into progress in the card hole.

Preferably, the chassis is rectangular tray structure, and the edge on the chassis, which raises upward, is formed with frame, chassis table The adjacent frame in face, which is recessed downwards, is formed with annular groove, and the rear and front end of the sliding rail extends respectively to recessed with the annular Slot connection.

Preferably, the opposite sides of the footrest is also respectively provided with the hollow hole penetrated for calcaneal traction needle.

Preferably, device for spreading, the device for spreading include the fixed cutting ferrule of thigh and telescopic advance lever, the telescopic adjustment One end of bar is hinged on the back of the footrest upper end, and the other end is hinged on the back of the fixed cutting ferrule of the thigh.

Technical solutions of the utility model structure is simple, easy to install and use quick, by the way that the leg of patient is placed on foot It in support, and is fixed to each other by bandage or gauze winding, footrest is then mounted on the of slide by the first snap-fit portion In two snap-fit portions, can mode manually or electrically drive slide to move along the longitudinal direction on the slide rail, thus band The leg stretching and beading of dynamic patient position leg to any stretching and beading angle, to draw the leg of patient and bend and stretch knee joint, so as to Corresponding operation is carried out in medical staff.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the schematic perspective view of the fixed device of the utility model Multi-functional knee joint；

Fig. 2 is structural schematic diagram when footrest is mounted on slide in the utility model；

Fig. 3 is the structural schematic diagram of slide in the utility model；

Fig. 4 is the structural schematic diagram of one embodiment of footrest in the utility model；

Fig. 5 is the structural schematic diagram of another embodiment of footrest in the utility model；

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation, based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " " axial direction ", " circumferential direction ", " radial direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

The fixed device of Multi-functional knee joint of the utility model embodiment is described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 4, according to the fixed device of the Multi-functional knee joint of the utility model embodiment, including chassis 10 With footrest 30,10 upper surface of chassis is provided with sliding rail 11 along the longitudinal direction, and sliding is provided with a slide on the sliding rail 11 20, the first snap-fit portion 20A is provided on the slide 20；The footrest 30 is used to be fixed on the leg of patient, the foot The corresponding heel position of support 30 is provided with the second snap-fit portion 30B, and the footrest 30 can by second snap-fit portion 30B Disassembly is mounted on first snap-fit portion 20A, and can be rotated around first snap-fit portion 20A.

It is placed on the tail portion of operating bed when specifically used according to the fixed device of the Multi-functional knee joint of the present embodiment, when On when patient lies in operating bed, by the way that the leg of patient is placed in footrest 30, and it is mutually solid by bandage or gauze winding It is fixed, then footrest 30 is mounted on the second snap-fit portion 30B of slide 20 by the first snap-fit portion 20A, Ji Ketong The mode crossed manually or electrically drives slide 20 to move along the longitudinal direction on sliding rail 11, thus drive patient leg stretching and beading or Leg is positioned to any stretching and beading angle, to draw the leg of patient and bend and stretch knee joint, in order to which medical staff corresponds to Operation；Such as: in patient's calf and fracture of tibial plateau, by the footrest that is fixed on shank and thigh can be fixed on Telescopic rod between the cutting ferrule in portion is drawn, and aids fracture resets, and retracts knee space, is conducive to fracture of tibial plateau Reset and fixation and the exposure of the tibial plateau in knee joint surface replacement process and surgical procedure.

It specifically, include two snap-gauges 21 being oppositely arranged on the slide 20, first snap-fit portion 20A includes The opposite card slot 22 being provided on two snap-gauges 21, the card slot 22 runs through the two sides of the snap-gauge 21, and is equipped with along preceding Holding section 222 that rear direction extends and with the opening portion 221 that is connected in the middle part of the holding section 222；Second snap-fit portion 30B includes the cylindrical protrusions 321 protruded respectively from the heel position to two sides, and the diameter of the cylindrical protrusions 321 is small It is caught in the front end or rear end of the holding section 222 in the opening portion 221 and by the opening portion 221, to realize described the The detachable installation of one snap-fit portion 20A and the second snap-fit portion 30B.

That is, when footrest 30 is caught in from opening portion 221 to the holding section of card slot 22 222 by cylindrical protrusions 321 When interior, by pushing slide 20 to travel forward (close to patient direction), cylindrical protrusions 321 are slidably to behind holding section 222 In end, and can the axis of opposed cylindrical protrusion 321 rotated, to drive the leg of patient to bending knee state, realize knee The space distraction purpose in joint；And moved backward by pushing slide 20 (far from patient direction), cylindrical protrusions 321 are slidably To the front end of holding section 222, and can the axis of opposed cylindrical protrusion 321 rotated, to drive the leg of patient to stretching Straight state does reset traction with the patient to fractured leg.

Further, the foot bottom of the footrest 30 is fixed with a fixed plate 31, and the width of the fixed plate 31 is less than two The spacing of a snap-gauge 21, one end extends to the heel position, and fixation is equipped with a card extended in left-right direction Axis 32, the part that the both ends of the axis 32 are pierced by the fixed plate 31 are respectively formed the cylindrical protrusions 321.

Closer, the front bulkhead and aft bulkhead of the holding section 222 are semi circular surface, and the diameter of the semi circular surface More than or equal to the diameter of the cylindrical protrusions 321.In this way, when 32 both ends of axis are corresponding be caught in holding section 222 front end or It when rear end, can more smoothly be rotated around its own axis, so that footrest 30 drives the leg of patient to do flexor；In addition, Since holding section 222 has certain length, when 32 both ends of axis of footrest 30 are located in two holding sections 222 When, there can be the turning power of certain angle, so have traction multiple when the foot to varus or fracture of turning up stretches Position effect.

It should be noted that being respectively arranged at least two card slots 22, two cards on each snap-gauge 21 At least two card slot 22 on plate 21 corresponds, and two cylindrical protrusions 321 in the footrest 30 can be caught in respectively On described two snap-gauges 21 in two opposite card slots 22.In this way, the patient for being suitable for different heights uses, it is applicable in flexibility ratio more It is high.

In one embodiment of the utility model, the present embodiment is by taking the movement of manual actuation slide 20 as an example, the slide 20 left and right sides is also respectively provided with the handle 23 for driving the slide 20 to slide along 11 direction of sliding rail convenient for medical staff, and The locking member 24 for being locked slide 20 on the sliding rail 11 is provided on the slide 20.Medical staff is hand-holdable Handle 23 pushes slide 20 to travel forward or move backward, slide 20 is pushed to required position, and will by 24 by locking Sliding seat locking is fixed on the position；Certainly, other can also be used in the relative positioning structure between slide 20 and chassis 10 Mode slidably positions slide 20 to a certain position as long as being able to achieve.

Further, the middle part of each snap-gauge 21 offers the regular polygon card hole 211 at least five sides, and described Hand 23 is L shape rod-like structure, and the connection-peg 231 that one end is adapted to the card hole 211, the other end is vertically bent to form grip part 232, the handle 23 be removably inserted into the card hole 211 by the connection-peg 231 carry out it is circumferentially fixed.Namely It says, is also to be detachably connected, and grip part can be adjusted by the structure of polygon card hole 211 between handle 23 and slide 20 232 angle, for example, in straight up or forward, tilt backwards, in order to which medical staff drives in the different location of bedside Dynamic slide 20 is mobile.

In some embodiments of the utility model, the chassis 10 is rectangular tray structure, the edge on the chassis 10 It raises upward and is formed with frame 12, recess is formed with annular groove 13, the cunning to the adjacent frame 12 in 10 surface of chassis downwards The rear and front end of rail 11 extends respectively to be connected to the annular groove 13.In this way, in carrying out surgical procedure, the liquid of disinfection And the liquid such as blood can fall on chassis 10 and converge in annular groove 13, and it is postoperative to siphon away removing with aspirator, it avoids Mattress is contaminated by the liquid.

Preferably, the opposite sides of the footrest 30 is also respectively provided with the hollow hole 33 penetrated for calcaneal traction needle.

In one embodiment of the utility model, as shown in figure 5, the utility model further includes having device for spreading 40, institute Stating device for spreading 40 includes that the fixed cutting ferrule 41 of thigh and telescopic advance lever 42, one end of the telescopic advance lever 42 are hinged on described The back of 30 upper end of footrest, the other end are hinged on the back of the fixed cutting ferrule 41 of the thigh.The section of the fixed cutting ferrule 41 of thigh is C Type structure, inside have flexible pad, and the telescopic advance lever 42 is including adjusting pipe sleeve 423 and being threaded in regulation pipe respectively Cover first attachment screw 421 and the second attachment screw 422 at 423 both ends, the first attachment screw 421 and the second attachment screw 422 Outer end be respectively hinged on the fixed cutting ferrule 41 of footrest 30 and thigh, and its hinged axis direction is vertical with adjusting pipe sleeve 423； When specifically used, footrest 30 is fixed on shank, and upper end extends to and closes on knee, and the fixed cutting ferrule 41 of thigh is fixed on thigh Knee is closed on, in this way, the first attachment screw 421 and the second attachment screw 422 can be made to distinguish phase by rotation regulating pipe set 423 Mutually far from pipe sleeve 423 is adjusted, thus by kneed space distraction, in order to carry out corresponding surgical procedure to knee joint.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of fixed device of Multi-functional knee joint characterized by comprising

Chassis, the chassis upper surface are provided with sliding rail along the longitudinal direction, and sliding is provided with a slide, the cunning on the sliding rail The first snap-fit portion is provided on seat；

Footrest, the footrest are used to be fixed on the leg of patient, and the footrest corresponds to heel position and is provided with the second snap-fit Portion, the footrest are detachably arranged in first snap-fit portion by second snap-fit portion, and can be around institute State the rotation of the first snap-fit portion.

2. the fixed device of Multi-functional knee joint as described in claim 1, which is characterized in that include two opposite on the slide The snap-gauge of setting, first snap-fit portion include the opposite card slot being provided on two snap-gauges, and the card slot runs through The two sides of the snap-gauge, and the opening portion for being equipped with the holding section extended along the longitudinal direction and being connected to the holding section middle part；Institute Stating the second snap-fit portion includes the cylindrical protrusions protruded respectively from the heel position to two sides, the cylindrical protrusions Diameter is less than the opening portion and is caught in the front end or rear end of the holding section by the opening portion, to realize first card The detachable installation in tight fit portion and the second snap-fit portion.

3. the fixed device of Multi-functional knee joint as claimed in claim 2, which is characterized in that the foot bottom of the footrest is fixed with One fixed plate, for the width of the fixed plate less than the spacing of two snap-gauges, one end extends to the heel position, and consolidates Surely it is equipped with an axis extended in left-right direction, the part that the both ends of the axis are pierced by the fixed plate is respectively formed described Cylindrical protrusions.

4. the fixed device of Multi-functional knee joint as claimed in claim 2, which is characterized in that the front bulkhead of the holding section is with after End wall is semi circular surface, and the diameter of the semi circular surface is greater than or equal to the diameter of the cylindrical protrusions.

5. the fixed device of Multi-functional knee joint as claimed in claim 2, which is characterized in that be respectively set on each snap-gauge There are at least two card slots, at least two card slot on two snap-gauges corresponds, two in the footrest Cylindrical protrusions can be caught in respectively in two card slots opposite on described two snap-gauges.

6. the fixed device of Multi-functional knee joint as described in claim 2-5 is any, which is characterized in that the left and right two of the slide Side is also respectively provided with the handle for driving the slide to slide along slide direction convenient for medical staff, and is provided on the slide Locking member for being fixed on sliding seat locking on the sliding rail.

7. the fixed device of Multi-functional knee joint as claimed in claim 6, which is characterized in that opened up in the middle part of each snap-gauge There is a regular polygon card hole at least five sides, the handle is rod-like structure, the connection-peg that one end is adapted to the card hole, separately One end is vertically bent to form grip part, and the handle is removably inserted into the card hole by the connection-peg and is carried out circumferentially admittedly It is fixed.

8. the fixed device of Multi-functional knee joint as described in claim 1, which is characterized in that the chassis is rectangular tray knot Structure, the edge on the chassis, which raises upward, is formed with frame, the adjacent frame of chassis surface be recessed downwards be formed with annular it is recessed Slot, the rear and front end of the sliding rail extend respectively to be connected to the annular groove.

9. the fixed device of Multi-functional knee joint as described in claim 1, which is characterized in that the opposite sides of the footrest is also divided It is not provided with the hollow hole penetrated for calcaneal traction needle.

10. the fixed device of Multi-functional knee joint as described in claim 1, which is characterized in that device for spreading, the device for spreading It is hinged on the back of the footrest upper end including the fixed cutting ferrule of thigh and telescopic advance lever, one end of the telescopic advance lever, separately One end is hinged on the back of the fixed cutting ferrule of the thigh.