CN209236394U - Femoral surgery auxiliary device - Google Patents
Femoral surgery auxiliary device Download PDFInfo
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- CN209236394U CN209236394U CN201821442677.0U CN201821442677U CN209236394U CN 209236394 U CN209236394 U CN 209236394U CN 201821442677 U CN201821442677 U CN 201821442677U CN 209236394 U CN209236394 U CN 209236394U
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- fence body
- baffle
- ankle
- auxiliary device
- locking piece
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Abstract
The utility model relates to femoral surgery auxiliary devices.The device includes fence body, rear ankle baffle, slidably nail hole plate and probe pull rod.What fence body was used to be attached to distal femur cuts off face.Ankle baffle can be relatively rotated for being attached to ankle high point after femur with fence body afterwards.Slidably nail hole plate and fence body slidable connection.Slidably nail hole plate is equipped with positioning nail hole.Probe pull rod and fence body slidable connection.When probe pull rod is relative to fence body movement first distance, it is able to drive the half that slidably nail hole plate moves first distance in same direction.Through the above technical solution, femoral surgery auxiliary device can both uniformly to distribute preartis and postartis osteotomy amount, again suitable outer swing angle can be selected for the outer swing angle of femur of different patients, be conducive to accurate osteotomy, the generation because of postoperative complications caused by deviations and prosthese installation fault is reduced or avoided.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to femoral surgery auxiliary device.
Background technique
Total knee arthroplasty is one of the effective treatment operation for treating knee joint trauma and disease, which is by suffering from
Person's knee joint patient affected part carries out corresponding osteotomy and implantable artificial articular prosthesis to replace original knee joint, closes to reach recovery
It saves function and alleviates ailing purpose.Therefore, it needs to carry out accurate osteotomy during total knee arthroplasty carries out, to suitable
Installation with prosthese.Specifically, femoral prosthesis is typically with the offer of series of standards size, femoral surgery auxiliary device passes through
Measurement femoral-posterior condyles determine corresponding prosthesis size to femur front side cortex distance.Once femoral surgery can be used in selected size
Auxiliary device is aligned based on femur anatomical features and determines the outer swing angle location hole to determine osteotomy orientation.It can be opposite
It is aligned in the Whiteside's line (Whiteside's line) that extends to knee cap slot from nest between ankle.Alternatively, may be used
Relative to being aligned through ankle axis on femur (transepicondylar axis) for the upper ankle high point of connection.It can also be used
Other anatomy reference mark.The correct selection of prosthesis size and prosthese being properly positioned for ensuring to fill relative to natural bone
The natural movement in the joint prepared and surrounding soft tissue balance great meaning.However, the skeletal size shape of different patients is all
It is not quite similar, traditional femoral surgery auxiliary device is difficult to accurately measure femoral size, before be easy to causeing postartis osteotomy amount, femur
Side cortex bone osteotomy amount is excessive perhaps very few so that front side stress be easy to cause to concentrate or influence kneecap rail after prosthese installation
Mark.The outer swing angle of the femur of different patients is different, and traditional femoral surgery auxiliary device is difficult to select not when determining osteotomy orientation
Same outer swing angle, malfunction be easy to cause the deviation of femur osteotomy, to influence the installation site of prosthese and the art of patient
Effect afterwards.
Utility model content
Based on this, it is necessary to provide a kind of improved femoral surgery auxiliary device.
The application provides a kind of femoral surgery auxiliary device, comprising:
Fence body cuts off face for be attached to distal femur；
Ankle baffle afterwards can be relatively rotated for being attached to ankle high point after femur with the fence body；
With the slidably nail hole plate of the fence body slidable connection, the slidably nail hole plate is equipped with locating pin
Hole；
With the probe pull rod of the fence body slidable connection, the probe pull rod is relative to fence body movement
When first distance, it is able to drive the half that the slidably nail hole plate moves first distance in same direction.
The slidably nail hole plate is equipped with first sliding groove, the extension of the first sliding groove in one of the embodiments,
Direction and the glide direction of the slidably nail hole plate are perpendicular；
The fence body is equipped with inclined second sliding slot；
The probe pull rod is equipped with inclined and different from second sliding slot extending direction third sliding slot, and described the
The angle that three sliding slots and the first sliding groove are formed is equal with the corner dimension that the second sliding slot and the first sliding groove are formed；
The overlapping region of the third sliding slot, the second sliding slot and the first sliding groove forms through-hole；
The femoral surgery auxiliary device further includes connecting rod, and the connecting rod is matched with the through-hole, so that the probe
When pull rod is relative to fence body movement first distance, the connecting rod drives the slidably nail hole plate in same direction
The half of mobile first distance.
The probe pull rod is equipped with size datum line in one of the embodiments, and the fence body is equipped with ruler
Very little reading slot, the size read and size scale line, the size scale line and the size datum line are distributed on the outside of slot
The prosthesis size needed to the determination femoral surgery.
The fence body is equipped with lock hole in one of the embodiments,；
The femoral surgery auxiliary device further includes scale locked component, the scale locked component and the lock hole phase
Cooperation, so that the scale locked component is abutted with the slidably nail hole plate；The scale locked component can be slided described in resisting
Glide direction of the direction perpendicular to the slidably nail hole plate for moving nail hole plate, so that the slidably nail hole plate, the probe
Pull rod and the fence body three stop mutually sliding.
Swivelling chute, the rotary shaft place of the rear ankle baffle are equipped in the fence body in one of the embodiments,
One end be assembled in the swivelling chute, it is described after the other end of ankle baffle be located at except the swivelling chute；It is kept off from the rear ankle
Plate is located at one end in the swivelling chute and is located at one end except the swivelling chute, the internal diameter of the swivelling chute to the rear ankle baffle
Become larger from small.
The rear ankle baffle has continuous multiple auxiliary sections in one of the embodiments,；
The femoral surgery auxiliary device further includes the locking piece being arranged on the fence body, and the locking piece has
Second state of the first state and the release auxiliary section that are mutually locked with the auxiliary section；
When ankle baffle and the fence body relatively rotate after described, the multiple auxiliary section is opposite with the fence body
Rotation, so that the locking piece can mutually be locked from the different auxiliary sections.
The femoral surgery auxiliary device further includes being arranged on the fence body in one of the embodiments,
The elastic component connecting with the locking piece, the elastic component provide the locking piece from second state to the first state
The power of conversion overcomes the elastic force of the elastic component that the locking piece can be made to convert from the first state to second shape
State.
The fence body is equipped with receiving hole in one of the embodiments, and the locking piece is located at the receiving hole
It is interior and along the axial direction of the receiving hole have first position and the second position, the locking piece in first state be in first
It sets, the locking piece is in the second position in second state；The elastic component is located in the receiving hole and being capable of edge
The axial stretching of the receiving hole, so that the locking piece can be converted between the first position and the second position.
The femoral surgery auxiliary device further includes being fixedly connected on the fence body in one of the embodiments,
Elastic component baffle that is upper and being located in the receiving hole, the elastic component baffle are located at the elastic component far from the locking piece
Side, and abutted with the elastic component.
The auxiliary section includes adjusting latch and between the adjacent adjusting latch in one of the embodiments,
Tooth socket；
The locking piece include ontology and towards the ontology radially protruding in the locking teeth of the body surface, described
When first state, the locking teeth locks the auxiliary section and being stuck in the tooth socket.
The fence body has flange, radial convex of the flange along the receiving hole in one of the embodiments,
For the side wall of the receiving hole, in the first state, the locking teeth is clipped between the elastic component and the flange.
The rear ankle baffle is equipped with the deep gouge adjacent with the multiple auxiliary section in one of the embodiments, described
Elastic component is located at the side close to the deep gouge of the auxiliary section, so that the locking piece is to the direction for compressing the elastic component
When mobile, the locking teeth can be moved in the deep gouge.
In one of the embodiments, in the first state, one end far from the elastic component of the locking piece is stretched
The receiving hole out.
The ontology has the first surface opposite with the locking teeth, first table in one of the embodiments,
Face is plane；The ontology has second surface adjacent with the first surface and the locking teeth respectively；The receiving hole
With the first side wall compatible with the first surface and second sidewall compatible with the second surface, so that preventing
The ontology is circumferentially rotated along the receiving hole.
The rear ankle baffle is equipped with angle reference line in one of the embodiments, and the fence body is equipped with angle
Spend graduation mark, the angle index line and relative angle of the angle reference line to ankle baffle and fence body after determination.
The fence body is equipped with watch window in one of the embodiments, has protrusion on the fence body
In the wedge angle of the inner wall of the watch window, the wedge angle is for observing the position of Whiteside's line in femoral surgery.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of the femoral surgery auxiliary device of an embodiment.
Fig. 2 is the rotation regulating mechanism sectional view of the femoral surgery auxiliary device in Fig. 1.
Fig. 3 is the mounted inside sectional view of the femoral surgery auxiliary device in Fig. 1.
Fig. 4 is the schematic diagram of the outer swing angle of adjusting of the femoral surgery auxiliary device in Fig. 1.
Fig. 5 is the partial structural diagram of the rear ankle baffle of the femoral surgery auxiliary device in Fig. 1.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.Preferred embodiments of the present invention are given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.Opposite, the purpose of providing these embodiments is that in order to practical to this
Novel disclosure understands more thorough and comprehensive.
It should be noted that be referred to as " being fixed on " another portion when portion, it can also be with directly in another portion
There are portions placed in the middle.When a portion is considered as that ' attach ' to another portion, it can be directly to another portion or
It may be simultaneously present portion placed in the middle.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement
For illustrative purposes only, it is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.It is intended merely to herein in the terminology used herein of the utility model
The purpose of specific embodiment is described, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Referring to FIG. 1, the embodiment of the present application provides a kind of femoral surgery auxiliary device 1.Femoral surgery auxiliary device 1 includes
Fence body 10, rear ankle baffle 20, slidably nail hole plate 30, probe pull rod 40 and probe 50.Slidably nail hole plate 30 with lead
10 slidable connection of plate main body.Probe pull rod 40 and 10 slidable connection of fence body.
10 two sides of fence body are provided with symmetrical rectangular straight slot 11a and rectangular straight slot 11b.Rectangular straight slot 11a and square
Shape through slot 11b is extended longitudinally downwards from the top surface of fence body 10.
Incorporated by reference to Fig. 2, slidably nail hole plate 30 includes slidably nail hole plate 30a and slidably nail hole plate 30b.Slidably follow closely
Orifice plate 30a and slidably nail hole plate 30b are respectively charged into the rectangular straight slot 11a of fence body 10 from the lower section of fence body 10 upwards
In rectangular straight slot 11b, so that slidably nail hole plate 30 can be along rectangular straight slot 11a and rectangular straight slot 11b relative to fence body
10 slidings.Slidably the side of nail hole plate 30a has boss, which is equipped with nail hole 32a.Slidably the one of nail hole plate 30b
Side has boss, which is equipped with nail hole 32b.
Incorporated by reference to Fig. 2, probe pull rod 40 has symmetrical rectangular slab 41a and rectangular slab 41b.The square of probe pull rod 40
Shape plate 41a and rectangular slab 41b are respectively charged into from the top down in the rectangular straight slot 11a and rectangular straight slot 11b of fence body 10, thus
Probe pull rod 40 can be slided along rectangular straight slot 11a and rectangular straight slot 11b relative to fence body 10.Slidably nail hole plate 30a and
Slidably nail hole plate 30b is located at the outside of probe pull rod 40, so that probe pull rod 40 is clipped in fence body 10 and slidably nail hole
Between plate 30.When probe pull rod 40 moves up or down first distance relative to fence body 10, it is able to drive and slidably follows closely
Orifice plate 30 moves the half of first distance in same direction.
Referring to FIG. 1, in one embodiment, slidably nail hole plate 30a is equipped with first sliding groove in conjunction with Fig. 2 and Fig. 3
31a.Slidably nail hole plate 30b is equipped with first sliding groove 31b.The extending direction of first sliding groove 31a and first sliding groove 31b with can slide
The glide direction of dynamic nail hole plate 30 is perpendicular, extends transversely.Two sides of fence body 10 symmetrically offer inclination
Second sliding slot 12a and inclined second sliding slot 12b.Second sliding slot 12a and second sliding slot 12b are extended in the same direction.Probe
Pull rod 40 is equipped with inclined third sliding slot 411a and third sliding slot 411b.Third sliding slot 411a and the extension side second sliding slot 12a
To difference.Third sliding slot 411b is different from second sliding slot 12b extending direction.Third sliding slot 411a is located on rectangular slab 41a.Third
Sliding slot 411b is located on rectangular slab 41b.Angle and second sliding slot 12a that third sliding slot 411a and first sliding groove 31a are formed and the
The corner dimension that one sliding slot 31a is formed is equal.The angle and second sliding slot 12b that third sliding slot 411b and first sliding groove 31b is formed
It is equal with the corner dimension that first sliding groove 31b is formed.Third sliding slot 411a, third sliding slot 411b, second sliding slot 12a, second are slided
The through-hole of the overlapping region formation hexagon of slot 12b, first sliding groove 31a, first sliding groove 31b.With reference to Fig. 3, femoral surgery auxiliary
Device 1 further includes connecting rod 60.Connecting rod 60 passes through third sliding slot 411a, third sliding slot 411b, second sliding slot 12a, second sliding slot
The overlapping region of 12b, first sliding groove 31a, first sliding groove 31b, so that the through-hole for forming hexagon with the overlapping region matches.
According to geometry motion relationship it is found that probe pull rod 40 is upward relative to fence body 10 along rectangular straight slot 11a and rectangular straight slot 11b
Or when slide downward first distance, connecting rod 60 drive slidably nail hole plate 30 move the half of first distance in same direction.
Fig. 1 combination Fig. 2, Fig. 3 and Fig. 4 are please referred to, is provided with kidney slot 51 on probe 50.Kidney slot 51 can be drawn with probe
Connection structure 42 on bar 40 matches, and makes probe 50 that can slide and rotate along kidney slot 51, to adjust the angle of probe 50
The position and.It, can be by the probe locking structure 43 on probe pull rod 40 by probe 50 after the angles and positions for regulating probe 50
It is locked with probe pull rod 40.Specifically, it can be locked by screw thread, magnet absorption, latch locks or other applicable lock modes will
Probe 50 and probe pull rod 40 are locked.
Referring to FIG. 4, probe pull rod 40 is equipped with size datum line 44.Size reading slot 17 is provided on fence body 10,
To expose size datum line 44.Size scale line 171 is distributed in size reading 17 two sides of slot.Size datum line 44 and size scale
The prosthesis size that line 171 is needed to determine femoral surgery.Needed for the corresponding different femoral size of different size scale lines 171
The prosthesis size wanted.Size scale line 171 corresponding to prosthesis size required for being indicated by size datum line 44.
Referring to FIG. 1, femoral surgery auxiliary device 1 further includes scale locked component 80 in conjunction with Fig. 2 and Fig. 4.Scale locking
Component 80 is matched with the lock hole (not shown) of 10 side of fence body.Scale locked component 80 includes locking screw 81 and rotation
Button 82, the two can be coupled by welding, interference fit or other applicable patterns.Locking screw 81 is by being threadedly engaged loading guide plate
In the lock hole of 10 side of main body.Lock hole is connected to rectangular straight slot 11a.Locking screw 81 can be made to support by rotating knob 82
Live in slidably nail hole plate 30b, and locking screw 81 resists the sliding in the slidably direction of nail hole plate 30 and slidably nail hole plate 30b
Direction is perpendicular, so that slidably nail hole plate 30, probe pull rod 40 and 10 three of fence body mutually abut, into
And make slidably nail hole plate 30, probe pull rod 40 and 10 three of fence body stopping mutually sliding, consequently facilitating determining stock
The prosthesis size that bone size and femoral surgery need.
Referring to FIG. 1,20 lower part of postartis baffle is equipped with symmetrical stabilizer blade 21a and stabilizer blade in conjunction with Fig. 2~Fig. 4
21b.20 top of postartis baffle is equipped with rocking bar 22.Rotating hole 221 is provided on rocking bar 22.Settable swivelling chute in fence body 10
14.One end where the rotating hole 221 of postartis baffle 20 is fitted into the swivelling chute 14 inside fence body 10.Postartis baffle 20
Stabilizer blade 21a and stabilizer blade 21b be located at except swivelling chute 14.Fence body 10 is equipped with the pin hole 15 being connected to swivelling chute 14.
Rotating hole 221 is aligned with pin hole 15.By the way that pin 23 is passed through rotating hole 221 and pin hole 15, so that rocking bar 22 and guide plate
Main body 10 is connected, and can be that rotary shaft and fence body 10 are relatively rotated with pin 23 from then ankle baffle 20, after adjusting
The relative angle of ankle baffle 20 and fence body 10.
Referring to FIG. 2, in one embodiment, being located at the ankle baffle 20 backward of one end in swivelling chute 14 from rear ankle baffle 20
The internal diameter of one end except swivelling chute 14, swivelling chute 14 becomes larger from small, to form certain rotating range, can will after
Ankle baffle 20, which is limited in the rotating range, carries out angular adjustment, avoids rear 20 rotating range of ankle baffle excessive.As shown in Fig. 2,
The section of swivelling chute 14 can be tapered cross-section, convenient for the processing of swivelling chute 14.
Referring to FIG. 1, in one embodiment, rear ankle baffle 20 has continuous multiple auxiliary sections 24.Referring again to Fig. 5,
Auxiliary section 24 may include adjusting latch 241 and positioned at the adjacent tooth socket 242 adjusted between latch 241.
It continues to refer to figure 1, fence body 10 is equipped with receiving hole 16.In conjunction with Fig. 3, femoral surgery auxiliary device 1 further includes
The locking piece 71 being located in receiving hole 16 on fence body 10 is set.Locking piece 71 can be button.Locking piece 71 includes
Ontology and towards ontology radially protruding in the locking teeth 711 of body surface.Locking piece 71 has the locked with 24 phase of auxiliary section
Second state of one state and release auxiliary section 24.Locking piece 71 has first position and second along axial in receiving hole 16
It sets.Locking piece 71 is in first position in first state, and the second position is in the second state.
Femoral surgery auxiliary device 1 further includes the elastic component 72 being arranged on fence body 10.Elastic component 72 can be bullet
Spring.Elastic component 72 is connect with locking piece 71.Elastic component 72 be located in receiving hole 16 and can along the axial stretching of receiving hole 16, with
Cause locking piece 71 that can convert between the first position and the second position.
When locking piece 71 is in first state, locking piece 71 is located at first position in receiving hole 16, and locking teeth 711 blocks
In tooth socket 242, it is meshed with latch 241 is adjusted, so that 711 lock fit portion 24 of locking teeth, and then rear ankle baffle 20
It is relatively unrotatable with fence body 10.
With reference to Fig. 3, in one embodiment, one end of receiving hole 16 has the first opening (not shown).Fence body 10
There is flange 162 in the first opening.Flange 162 along receiving hole 16 radially protruding in the side wall of receiving hole 16.Locking piece 71
At first position, locking teeth 711 is clipped between elastic component 72 and flange 162, so that locking piece 71 is locked in first position, from
And auxiliary section 24 can be locked in corresponding position by locking teeth 711, so that rear ankle baffle 20 is locked with fence body 10
In corresponding relative angle.
With reference to Fig. 3 combination Fig. 1 and Fig. 5, rear ankle baffle 20 is equipped with the deep gouge 25 adjacent with multiple auxiliary sections 24.Elastic component
72 are located at the side of the close deep gouge 25 of auxiliary section 24, and receiving hole 16 is stretched out in one end of the separate elastic component 72 of locking piece 71, from
And locking piece 71 can be kept mobile to the direction of compression elastic piece 72 by pressure-locking part 71 into receiving hole 16, can with gram
The elastic force of elastic component 72 is taken, so that locking piece 71 is moved to the second position from first position in receiving hole 16, thus locking teeth
711 are detached from tooth sockets 242 and are moved in deep gouge 25, then locking piece 71 discharges auxiliary section 24, and then rear ankle baffle 20 and guide plate master
Body 10 can relatively rotate, at this point, locking piece 71 is transformed into the second state from first state.Since locking piece 71 is in first state
When, receiving hole 16 is stretched out in one end of the separate elastic component 72 of locking piece 71, to can make locking piece by pressure-locking part 71
71 partly or entirely enter receiving hole 16, and then can reduce femoral surgery auxiliary device while locking piece 71 convenient to use
1 volume.
When locking piece 71 is in the second state, the relative angle of adjustable rear ankle baffle 20 and fence body 10.To
Rear ankle baffle 20 is regulated with after the relative angle of fence body 10, discharges locking piece 71, then in the elastic reaction of elastic component 72
Under, locking piece 71 will be moved to first position from the second position, so that locking teeth 711 is moved in tooth socket 242 from deep gouge 25,
It is locked with 24 phase of auxiliary section.At this point, locking piece 71 is transformed into first state from the second state.Elastic component 72 provides locking piece 72
The power converted from the second state to first state.
When ankle baffle 20 and fence body 10 relatively rotate afterwards, multiple auxiliary sections 24 are opposite with fence body 10 simultaneously to be turned
It is dynamic, so that locking teeth 711 can be stuck in different tooth sockets 242, and then locking piece 71 at first position can from it is different
The locking of 24 phase of auxiliary section.When locking piece 71 is locked from different 24 phases of auxiliary section, rear ankle baffle 20 has not with fence body 10
Same relative angle, can be locked in different relative angles from then ankle baffle 20 from fence body 10.
With reference to Fig. 1, in one embodiment, ontology has the first surface 712 opposite with locking teeth 711.First surface
For plane.Ontology has second surface 713 adjacent with first surface 712 and locking teeth 711 respectively.Second surface 713 is arc
Face.With reference to Fig. 3, receiving hole 16 has the first side wall 161 and second sidewall (not shown).The first side wall 161 is plane, and with the
One surface 712 is adapted, and second sidewall and second surface 712 are adapted, so that locking piece 71 can be along receiving hole
16 axial movement, and cannot circumferentially rotating along receiving hole 16 so that locking piece 71 can accurately with auxiliary section 24
Mutually lock.
It is understood that in other embodiments, second surface 713 or inclined-plane, uneven surface etc., the
Two surfaces 713 are set as other shapes, equally locking piece 71 can be enable along the axial movement of receiving hole 16, and cannot be along appearance
Receive the circumferentially rotating of hole 16.
With reference to Fig. 3, in one embodiment, femoral surgery auxiliary device 1 further includes being fixedly connected on fence body 10
And be located at receiving hole 16 in elastic component baffle 73.Elastic component baffle 73 is located at side of the elastic component 72 far from locking piece 71,
And abutted with elastic component 72, to prevent elastic component 72 from contacting with rear ankle baffle 20, the movement for being conducive to rear ankle baffle 20 is steady.
Elastic component baffle 73 can be coupled by interference fit, welding or other applicable patterns with fence body 10.
With reference to Fig. 3, in one embodiment, femoral surgery auxiliary device 1 further includes being fixedly connected on fence body 10
Shell baffle 74.Receiving hole 16 has the second opening.Second opening is located at side of the elastic component 72 far from locking piece 71.Shell
Baffle 74 by interference fit, welding or other applicable patterns close receiving hole 16 second opening so that fence body 10 compared with
For beauty.
The working principle of above-mentioned femoral surgery auxiliary device 1 is described below.In surgical procedure, doctor can be by fence body
10, which are affixed on distal femur, cuts off on face, at the same by postartis baffle 20 stabilizer blade 21a and stabilizer blade 21b to be affixed on ankle after femur respectively high
Point, to can determine ankle axis (the transepicondylar axis) after femur.By by probe pull rod 40 and fence body
10 opposite slidings, so that 50 head of probe touches cortex climbing point on front side of femur.50 head of probe and stabilizer blade 21a and 21b it
Between the corresponding femoral size of vertical range, that is, femoral surgery.At this point, probe pull rod 40 is mobile in place, group can be locked by scale
Part 80 is matched with the lock hole of 10 side of fence body, so that slidably nail hole plate 30, probe pull rod 40 and fence body
10 threes stop mutually sliding, so that size scale line 171 and size datum line 44 stop moving, and then facilitate and are carved according to size
Spend the prosthesis size corresponding with the determining femoral size of size datum line 44 of line 171.Determination to perform the operation needs prosthesis size after,
Next it needs to be determined that the position of the outer swing angle location hole of osteotomy.It can be by part 71 being pressure-locked into receiving hole 16 to overcome
The elastic force of elastic component 72, so that locking teeth 711 is moved in deep gouge 25, it can be opposite with fence body 10 from then ankle baffle 20
Rotation, and then can be by the adjusting of rear ankle baffle 20 and fence body 10 to required relative angle.Then lock can be discharged
Determine part 71, then locking teeth 711 is moved in tooth socket 242 under the elastic reaction of elastic component 72 from deep gouge 25, thus after locking
The relative angle of ankle baffle 20 and fence body 10, so after locking ankle baffle 20 and slidably nail hole plate 30 relative angle,
By the positioning nail hole 32a on slidably nail hole plate 30 and nail hole 32b can be positioned to femur punching, to determine femoral surgery
Outer swing angle location hole.
Femoral surgery auxiliary device 1 in the above embodiments of the present application, since probe pull rod 40 is relative to fence body 10
When mobile first distance, slidably nail hole plate 30 moves the half of first distance in same direction, so as to more uniformly
Distribution preartis and postartis osteotomy amount, and then can reduce and avoid because preartis or postartis osteotomy amount are excessive or very few and cause
Prosthese installation and postoperative complications problem.Meanwhile the fence body 10 of the femoral surgery auxiliary device 1 and rear 20 energy of ankle baffle
It is enough to relatively rotate, so as to adjust the relative angle between slidably nail hole plate 30 and rear ankle baffle 20, and then can provide
The outer swing angle location hole of multiple angles, the outer swing angle of femur for being conducive to doctor for different patients select suitable outer swing angle,
Flexible operating during operation simultaneously.Therefore, the femoral surgery auxiliary device 1 in above-described embodiment can both uniformly to distribute
Preartis and postartis osteotomy amount, and suitable outer swing angle can be selected for the outer swing angle of femur of different patients, it is accurate to be conducive to
The generation because of postoperative complications caused by deviations and prosthese installation fault is reduced or avoided in osteotomy.
With reference to Fig. 4, in one embodiment, rear ankle baffle 20 is equipped with angle reference line 26, and fence body 10 is equipped with
Angle index line 18.Angle index line 18 and relative angle of the angle reference line 26 to ankle baffle 20 and fence body 10 after determination
Degree.The corresponding different relative angle of different angle index lines 18.It needs with fence body 10 to rotate rear ankle baffle 20 to certain
When one relative angle, the corresponding angle of the angle can be arrived up to the instruction of angle reference line 26 and is carved by by the two relative rotation
Spend line 18.
With reference to Fig. 1 and Fig. 4, in one embodiment, fence body 10 is equipped with watch window 13.Have on fence body 10
There is the wedge angle 131 for the inner wall for protruding from watch window 13.Wedge angle 131 can be located at the middle at the top of watch window.Wedge angle
131 for observing the position of Whiteside's line in femoral surgery.By being directed at wedge angle 131 with Whiteside's line,
It can more accurately determine outer swing angle location hole.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of femoral surgery auxiliary device characterized by comprising
Fence body cuts off face for be attached to distal femur；
Ankle baffle afterwards can be relatively rotated for being attached to ankle high point after femur with the fence body；
With the slidably nail hole plate of the fence body slidable connection, the slidably nail hole plate is equipped with positioning nail hole；
With the probe pull rod of the fence body slidable connection, the probe pull rod is relative to the fence body mobile first
Apart from when, be able to drive the half that the slidably nail hole plate moves first distance in same direction.
2. femoral surgery auxiliary device according to claim 1, which is characterized in that
The slidably nail hole plate is equipped with first sliding groove, the extending direction of the first sliding groove and the slidably nail hole plate
Glide direction is perpendicular；
The fence body is equipped with inclined second sliding slot；
The probe pull rod is equipped with inclined and different from second sliding slot extending direction third sliding slot, and the third is sliding
The angle that slot and the first sliding groove are formed is equal with the corner dimension that the second sliding slot and the first sliding groove are formed；It is described
The overlapping region of third sliding slot, the second sliding slot and the first sliding groove forms through-hole；
The femoral surgery auxiliary device further includes connecting rod, and the connecting rod is matched with the through-hole, so that the probe pull rod
When first distance mobile relative to the fence body, the connecting rod drives the slidably nail hole plate to move in same direction
The half of first distance.
3. femoral surgery auxiliary device according to claim 2, which is characterized in that the probe pull rod is equipped with size base
Directrix, the fence body are equipped with size and read slot, and size scale line, the ruler is distributed on the outside of the size reading slot
The prosthesis size that very little graduation mark and the size datum line are needed to determine femoral surgery.
4. femoral surgery auxiliary device according to claim 1, which is characterized in that be equipped with rotation in the fence body
Slot, one end where the rotary shaft of the rear ankle baffle are assembled in the swivelling chute, and the other end of the rear ankle baffle is located at
Except the swivelling chute；It is located at one end in the swivelling chute from the rear ankle baffle and is located at the rotation to the rear ankle baffle
The internal diameter of one end except slot, the swivelling chute becomes larger from small.
5. femoral surgery auxiliary device according to claim 1, which is characterized in that
Ankle baffle has continuous multiple auxiliary sections after described；
The femoral surgery auxiliary device further includes the locking piece being arranged on the fence body, and the locking piece has and institute
State the first state and the second state for discharging the auxiliary section that auxiliary section mutually locks；
When ankle baffle and the fence body relatively rotate after described, the multiple auxiliary section is opposite with the fence body to be turned
It is dynamic, so that the locking piece can mutually be locked from the different auxiliary sections.
6. femoral surgery auxiliary device according to claim 5, which is characterized in that
The fence body is equipped with receiving hole, and the locking piece is located at the axial direction tool in the receiving hole and along the receiving hole
There are first position and the second position, the locking piece is in first position in first state, and the locking piece is described second
The second position is in when state；The locking piece is connect with an elastic component, and the elastic component is located in the receiving hole and can
Along the axial stretching of the receiving hole, so that the locking piece can turn between the first position and the second position
It changes.
7. femoral surgery auxiliary device according to claim 5, which is characterized in that the auxiliary section include adjust latch and
Tooth socket between the adjacent adjusting latch；
The locking piece include ontology and towards the ontology radially protruding in the locking teeth of the body surface, described first
When state, the locking teeth locks the auxiliary section and being stuck in the tooth socket.
8. femoral surgery auxiliary device according to claim 7, which is characterized in that the fence body has flange, institute
Flange is stated along the radially protruding of the receiving hole in the side wall of the receiving hole, in the first state, the locking toothholder
Between the elastic component and the flange；
Ankle baffle is equipped with the deep gouge adjacent with the multiple auxiliary section after described, and the elastic component is located at leaning on for the auxiliary section
The side of the nearly deep gouge, in second state, i.e., when the described locking piece is mobile to the direction for compressing the elastic component, institute
Stating locking teeth can be moved in the deep gouge.
9. femoral surgery auxiliary device according to claim 7, which is characterized in that the ontology has and the locking teeth
Opposite first surface, the first surface are plane；The ontology have respectively with the first surface and the locking teeth
Adjacent second surface；The receiving hole have the first side wall compatible with the first surface and with the second surface
Compatible second sidewall, so that preventing the ontology circumferentially rotating along the receiving hole.
10. femoral surgery auxiliary device according to claim 1, which is characterized in that ankle baffle is equipped with angle after described
Reference line, the fence body is equipped with angle index line, after the angle index line and the angle reference line are to determination
The relative angle of ankle baffle and fence body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821442677.0U CN209236394U (en) | 2018-09-04 | 2018-09-04 | Femoral surgery auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821442677.0U CN209236394U (en) | 2018-09-04 | 2018-09-04 | Femoral surgery auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209236394U true CN209236394U (en) | 2019-08-13 |
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ID=67517456
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821442677.0U Active CN209236394U (en) | 2018-09-04 | 2018-09-04 | Femoral surgery auxiliary device |
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| Country | Link |
|---|---|
| CN (1) | CN209236394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009478A (en) * | 2018-09-04 | 2018-12-18 | 苏州微创关节医疗科技有限公司 | Femoral surgery auxiliary device |
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2018
- 2018-09-04 CN CN201821442677.0U patent/CN209236394U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009478A (en) * | 2018-09-04 | 2018-12-18 | 苏州微创关节医疗科技有限公司 | Femoral surgery auxiliary device |
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