CN110477995A - Femur osteotomy distal end positioned in alignment device - Google Patents
Femur osteotomy distal end positioned in alignment device Download PDFInfo
- Publication number
- CN110477995A CN110477995A CN201910730050.8A CN201910730050A CN110477995A CN 110477995 A CN110477995 A CN 110477995A CN 201910730050 A CN201910730050 A CN 201910730050A CN 110477995 A CN110477995 A CN 110477995A
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- distal end
- oscillating table
- hole
- alignment device
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 52
- 238000002271 resection Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 7
- 206010006514 bruxism Diseases 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 210000000629 knee joint Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 241001227561 Valgus Species 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of femur osteotomy distal end positioned in alignment devices, are connected to distal femoral resection protection block, including oscillating table, swing locating piece and locating rod by femur osteotomy locating guider.Oscillating table is equipped with mounting hole, one end of locating rod is protruded into mounting hole, locating piece is swung to be fixedly connected and can be rotated relative to locating rod with oscillating table with oscillating table, the inside of locating rod is equipped with the through-hole extended along locating rod length direction, im rod passes through through-hole and is inserted into distal femoral when operation, oscillating table is additionally provided with pilot hole, and pilot hole extends to the lower surface of oscillating table from the upper surface of oscillating table, and guide rod is inserted into pilot hole.For the device by swinging structure come positioning device rotational angle, operation is intuitive, can effectively reduce maloperation.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of femur osteotomy distal end positioned in alignment device.
Background technique
In orthopedics diagnosis, other lesions of the human body bone impingement as caused by various fortuitous events or bone are abnormal
Shape has many patients to need to receive bone-culting operation.
By taking knee joint as an example, generally by after lesion portion is removed, disposing artificial knee joint prosthesis to patient's osteotomy.
Knee prosthesis osteotomy generally comprises distal femur osteotomy, proximal tibia osteotomy, condyle bone osteotomy, kneecap osteotomy etc..
Because the shape and plant prosthese that cut out need the matching on position, it is accurately fixed to need to carry out osteotomy site
Position.Traditional femur osteotomy positioning device operation is time-consuming and laborious, needs both hands spin button to guarantee to rotate a certain angle, together
When angle fixation be also required to fine determination.And then procedure efficiency is influenced, lead to doctor's maloperation.
Therefore, it is necessary to a kind of better femur osteotomy positioning devices.
Summary of the invention
The object of the present invention is to provide a kind of easy to operate, accurate positioning distal end positioned in alignment devices.
In order to solve the above technical problems, passing through stock the present invention provides a kind of femur osteotomy distal end positioned in alignment device
Bone locating guider is connected to distal femoral resection protection block, and the femur locating guider is provided with guide rod, the distal end alignment
Positioning device includes oscillating table, swings locating piece and locating rod, and the oscillating table is equipped with mounting hole, one end of the locating rod
It protrudes into the mounting hole, the swing locating piece is fixedly connected with the oscillating table and can be with the oscillating table relative to described
Locating rod rotation, the inside of the locating rod are equipped with the through-hole extended along the locating rod length direction, and im rod is worn when operation
It crosses the through-hole and is inserted into distal femoral, the oscillating table is additionally provided with pilot hole, and the pilot hole is upper from the oscillating table
Surface extends to the lower surface of the oscillating table, and the guide rod is inserted into the pilot hole.
In one embodiment, the distal end positioned in alignment device further includes locking piece, and the locking piece is installed on described
In locating rod and it is equipped with sticking department, the locating piece that swings is equipped with the locking bit cooperated with the sticking department, and described swing is determined
After position part rotates to required position, the sticking department cooperates with the locking bit by the swing locating piece and the locating rod phase
Mutually locking.
In one embodiment, the swing locating piece has fan-shaped main body, and the locking bit is to be set to the sector
Multiple sawtooth grooves of main body circumference, the sticking department is the locking projections being set on the locking piece, in latched position,
The locking projections are caught in one of them described sawtooth grooves.
In one embodiment, the surface of the fan-shaped main body is equipped with scale, the scale and the swing locating piece
Angle relative to locating rod rotation is corresponding.
In one embodiment, the middle part of the locking piece is equipped with the locking piece extended along the length direction of the locking piece
The locking piece is sheathed in the locating rod by the major diameter fit of through-hole, the locking piece through-hole and the locating rod.
In one embodiment, the distal end positioned in alignment device further includes elastic component and fixing piece, and the elastic component is set
It is placed between the locking piece and the fixing piece, by operating the locking piece pressing elastic component and making the locking
Part slides in the locating rod so that the locking projections are detached from the sawtooth, and the swing locating piece enters non-locking
Position.
In one embodiment, the lower part of the locking piece is equipped with operation portion, drives the locking by the operation portion
Part slides in the locating rod.
In one embodiment, the axis of the pilot hole and the axis of the mounting hole are mutually perpendicular to.
In one embodiment, the distal end positioned in alignment device further includes hook knob, and the side of the oscillating table is set
There is knob hole, the hook knob is installed in the knob hole, is operated the oscillating table by the hook knob and is moved.
In one embodiment, the knob hole is communicated with the pilot hole, and the hook knob can also be by guide rod
It is fixed in the pilot hole.
Distal end positioned in alignment device of the invention using periphery there is the fan-shaped of grinding tooth connected in star to swing locating piece, pass through pendulum
Dynamic structure rapidly and accurately finds the point for needing to swing, Jin Erjie to ensure the rotational angle position determining with grinding tooth connected in star
Save operating time.The apparatus structure is simple, can reduce manufacturing cost, while doctor being facilitated to manipulate instrument, reduces maloperation.This
Outside, the device is using fan-shaped swing component, so that simple and direct-viewing operation, hand difficulty in reduction is conducive to be widely used to promote.
Detailed description of the invention
Fig. 1 is the main view of femur osteotomy distal end positioned in alignment device of the invention；
Fig. 2 is the stereogram exploded view of the distal end positioned in alignment device of Fig. 1；
Fig. 3 is the distal end positioned in alignment device use state of Fig. 1 with reference to figure, navigates to left three scales；
Fig. 4 is the perspective view of femur osteotomy locating guider；And
Fig. 5 is the perspective view of distal femoral resection protection block.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below with reference to attached drawing, it is of the invention to be clearer to understand
Objects, features and advantages.It should be understood that embodiment shown in the drawings does not limit the scope of the present invention, and only it is
Illustrate the connotation of technical solution of the present invention.
In the following description, elaborate certain details to provide for the purpose for illustrating various disclosed embodiments
To the thorough understanding of various open embodiments.But it one skilled in the relevant art will recognize that can be in without these details
One or more details the case where practice embodiment.Under other circumstances, well known device associated with this application, knot
Structure and technology may not be illustrated in detail or describe to avoid unnecessarily obscuring the description of embodiment.
Unless context has other needs, and in the whole instruction and claim, word " comprising " and its modification, such as
"comprising" and " having " should be understood meaning that is open, including, that is, should be interpreted that " including, but are not limited to ".
Expression is in conjunction with the embodiments described to be referred to " one embodiment " or " embodiment " throughout the specification
Certain features, structure or feature are included at least one embodiment.Therefore, in each position of the whole instruction " at one
In embodiment " or " in an embodiment " in appearance without all referring to identical embodiment.In addition, certain features, structure or feature
It can combine in any way in one or more embodiments.
The singular as used in the specification and appended " one " and " described " include plural object, are removed
It is clearly dictated otherwise in non-text.It should be noted that term "or" is usually used with the meaning that it includes "and/or", unless literary
In clearly dictate otherwise.
In the following description, structure and working method of the invention in order to clearly demonstrate, will be by many Directional words
It is described, but should be by the words such as "front", "rear", "left", "right", "outside", "inner", " outside ", " inside ", "upper", "lower"
Language understands for convenience of term, and is not construed as word of limitation.
Certain surgical operations such as replacement knee in arthroplasty needs the shape that distal femur part bone is cut out, and cut out
Shape is i.e. and plant prosthese needs to match in position.In order to implement this operation, need to use distal femur osteotomy component, femur
Osteotomy of distal component generally includes distal femoral resection protection block, femur osteotomy locating guider and distal end positioned in alignment device, stock
Resected bone protection block has the screw hole of different location in being used to, being capable of precise positioning while adjusting instrument, it is ensured that in operation
Femur osteotomy amount is stablized.In order to ensure founding the rotatable engagement of line angle degree, femur osteotomy distal end positioned in alignment device is utilized, it is ensured that vertical
Line bar can rotate to certain position.Mating feature precision is very high simultaneously, can reach stable accurate connection type every time.
It is efficient and convenient in order to ensure connecting, then locating guider is used, accurate to ensure to connect, cooperation precision is high.
The present invention relates to the distal end positioned in alignment devices in femur osteotomy positioning component.The distal end positioned in alignment device is main
It is that cooperation femur osteotomy locating guider and distal femoral resection protection block use.It will be of the invention by femur osteotomy locating guider
Distal end positioned in alignment device is connected to distal femoral resection protection block, and distal end positioned in alignment device through the invention positions femur
Cut off the position of protection block.
The distal end positioned in alignment device 100 of one embodiment of the invention is introduced with reference to the accompanying drawings.
Fig. 1-3 shows the distal end positioned in alignment device 100 of one embodiment of the invention.As shown in Figure 1-3, femur of the invention
Osteotomy distal end positioned in alignment device is connected to distal femoral resection protection block (shown in Fig. 5) by femur locating guider (shown in Fig. 4),
Wherein femur locating guider is provided with guide rod.Distal end positioned in alignment device of the invention generally comprises oscillating table 1, positioning
Bar 2 and swing locating piece 3, oscillating table 1 are equipped with mounting hole, and one end of locating rod is protruded into mounting hole, swing locating piece and swing
Platform is fixedly connected and can rotate with oscillating table relative to locating rod, and the inside of locating rod is equipped with to be extended along locating rod length direction
Through-hole, im rod passes through through-hole and is inserted into distal femoral when operation, and oscillating table is additionally provided with pilot hole, and pilot hole is from oscillating table
Upper surface extends to the lower surface of oscillating table, and the guide rod of femur locating guider is inserted into pilot hole.
The front end face of oscillating table 1 is used for the location contacts most protruded with distal femur.In the downside of the front end face of oscillating table 1
Portion formed arc notch 17, the arc notch 17 by the front end face of oscillating table 1 be separated into two respectively with the left condyle of femur or right condyle
The face of contact.It will be understood to those skilled in the art that can also to be formed as arc recessed for the lower middle side part of the front end face of oscillating table 1
The front end face of oscillating table 1 is divided into two to connect respectively with the left condyle of femur or right condyle by the groove of slot or other suitable shapes
The face of touching.
With continued reference to Fig. 1-3, oscillating table 1 is equipped with peace is protruded into perforative mounting hole 13, the front end of locating rod 2 along the longitudinal direction
It fills in hole 13.In the present embodiment, the part of the front end insertion mounting hole 13 of locating rod 2 has rectangular shape, correspondingly, installation
Hole 13 is rectangular opening.It will be appreciated, however, by one skilled in the art that mounting hole 13 and the front end of locating rod 2 also can be set
For other shapes such as bucking ladders.
In one embodiment, the part of the front end insertion mounting hole 13 of locating rod 2 has rectangular body and is set to rectangle sheet
The curved edge of body front end.In one embodiment, the ontology of the part of the upper end insertion mounting hole 13 of locating rod 2 is with front and back two
A plane-parallel stage body, correspondingly, former and later two side walls of mounting hole 13 are set as that in parallel, cubold shape, bucking ladder can be set as
The shapes such as shape or other suitable shapes.
Oscillating table 1 is additionally provided with pilot hole 14, and pilot hole 14 extends to lower surface from the upper surface of oscillating table 1 to shape
At through-hole.Pilot hole 14 is used to cooperate with the guide rod 21 of femur osteotomy locating guider 200 shown in Fig. 4, specifically, passes through
The guide rod 21 of femur osteotomy locating guider 200 is inserted into pilot hole 14 femur osteotomy locating guider 200 and distal end is right
Neat positioning device 100 connects.
The side of oscillating table 1 is additionally provided with hook knob 10, operates oscillating table 1 around locating rod by hand-held hook knob 10
2 swing.Specifically, the side of oscillating table 1 is provided with knob hole 15, and knob hole 15 is communicated with the pilot hole 14 of side, lock
The front end for determining knob 10 is protruded into oscillating table 1 from knob hole 15 and is connected in pilot hole 14.In femur osteotomy locating guider 200
Two guide rods 21 buckled into pilot hole 14 respectively after, hook knob 10 is screwed, so that the front end of hook knob 10 is from side
Guide rod 21 is resisted, so that femur osteotomy locating guider is locked on oscillating table 1.Hook knob 15 may be disposed at oscillating table
1 left part and/or right part.The settable handle portion in the end of hook knob 15 operates oscillating table 1 around positioning by hand-held handle portion
Bar 2 swings.
With continued reference to Fig. 1-3, hook knob 10 may include interconnecting piece 101 and hand-held part 102, and interconnecting piece 101 is equipped with
Screw thread spaced apart, i.e., rear portion is equipped with screw thread behind the front of interconnecting piece 101, and does not set screw thread at middle part, not set screw thread
Middle part and pin 11 cooperate, after being installed in place hook knob 10 in knob hole 15, by the way that pin 11 is inserted into interconnecting piece
101 middle part, hook knob 10 is fixed on oscillating table 1.
The inside of locating rod 2 is equipped with the through-hole 16 that extends along locating rod length direction, and im rod (not shown) is worn when operation
It crosses through-hole 16 and is inserted into pulp cavity, wherein the also known as vertical line bar of im rod, is in long rod, for being inserted into pulp cavity, usually knee joint
The position of femoral bone cavitas medullaris, the insertion of im rod determines the axle center of femoral rotation.The front end of im rod is equipped with tip, facilitates insertion
In the through-hole 16 of locating rod 2, the screw thread with the cooperation of the through-hole 16 of locating rod 2 is also provided in im rod.
Oscillating table pin hole 71 is additionally provided in the middle part of the upper surface of oscillating table 1, oscillating table pin hole 71 is set to two pilot holes
Penetrating mounting holes 13 and extend the lower surface of oscillating table 1 always between 14 and from the upper surface of oscillating table 1, correspondingly, locating rod 2
Front end protrude into the part of mounting hole 13 and be equipped with locating rod pin hole 72, after locating rod 2 is protruded into mounting hole 13, by by two
Root pin 7 is inserted into locating rod pin hole 72 and oscillating table pin hole 71 from the upper and lower surface of oscillating table 1, by oscillating table 1 and positioning
Bar 2 is pivotally connected, so that oscillating table 1 can be that pendulum motion is made relative to locating rod 2 in axle center with pin 7.
It swings locating piece 3 to be fixedly connected with oscillating table 1, pendulum, balancing point or other suitable irregular shapes can be set as.
When oscillating table 1 is swung, the swing angle of oscillating table 1 can be measured by swinging locating piece 3.Specifically, locating piece 3 is swung
With fan shape main body 31, interconnecting piece 32, the downwardly projecting shape in the lower surface of interconnecting piece 32 are equipped in the front end of fan-shaped main body 31
At protrusion 33, it is additionally provided on interconnecting piece 33 and swings locating piece pin hole 121.
Correspondingly, locating rod 2 is equipped with interconnecting piece receiving hole 122, and oscillating table 1 is equipped with the second oscillating table pin hole 124.
Protrusion 33 by that will swing locating piece 3 will swing locating piece 3 and locating rod 2 can into insertion interconnecting piece receiving hole 122
Rotation connection.Then the interconnecting piece 32 of the front end of locating rod 2 and swing locating piece 3 is protruded into together in mounting hole 13 again, so
Pin 13 is successively penetrated into the second oscillating table pin hole 124 again afterwards and is swung in locating piece pin hole 121, to swing positioning
Part 3 is fixedly connected with oscillating table 1.It will be understood to those skilled in the art that swinging locating piece 3 can also consolidate otherwise
Due on oscillating table 1, such as welds, is threadedly coupled, snaps connection.
It will be understood to those skilled in the art that the plate that the fan-shaped main body for swinging locating piece 3 can be constituted for entire panel
Shape segment, or be other shapes of segment.Such as the sector being made of swing rod and the fan ring being fixed below swing rod
The number of main body, swing rod may be configured as one or more.Further, fan-shaped main body can the limit be provided in round main body, annulus master
Body or other suitable deformations kind, it will be also be appreciated that within protection scope of the present invention.
When oscillating table 1 is in predeterminated position, pin 12 is parallel with locating rod 2 with the line of pin 7, and pin 12 can be located at
The below or above of pin 7, fan-shaped symmetry axis pass through pin 12, and parallel with locating rod 2, so that swinging locating piece 3
Swing position is restricted to swing relative to locating rod 2.
Swinging the angular range that locating piece 3 is swung can be set to relative to -9 °~9 ° of central axes.Wherein " negative " angle
Indicate that left swing, " positive number " angle indicate right pendulum.Swing the graduation mark that locating piece 3 is provided with corresponding swing angle.Swing locating piece 3
Every swing 1 ° of setting, one graduation mark, is provided with 0, L (left side) 1-9 and R (right side) 1-9 totally 19 graduation marks.As shown in figure 3, showing
Swing locating piece 3 swings to the position view of left (L) 3 scale, namely indicates that oscillating table 1 swings to left (L) 3 ° of positions at this time
It sets.
Distal end positioned in alignment device 100 further includes locking piece 4.The bottom for swinging locating piece 3 is equipped with locks mutually with locking piece 4
Fixed locking structure (not shown).When in the unlocked position, swinging locating piece 3 can swing with oscillating table 1, work as place
When latched position, swings locating piece 3 and locking piece 4 locks mutually, swing locating piece 3 and be locked to the position that current oscillation arrives
It sets, so that oscillating table 1 is also locked in the position that current oscillation arrives.
In the embodiment shown in Fig. 1-3, the periphery setting of the fan-shaped main body of swing locating piece 3 is multiple to nibble tooth-like recesses
31, locking projections 41 are arranged in locking piece 4.When locking projections 41 are not caught in groove 31, swing at locating piece 3 and locking piece 4
In unlocked state, swinging locating piece 3 at this time can swing with oscillating table 1.And when locking projections 41 are caught in groove 31
When, it is in the lock state, swings locating piece 3 and be locked to the position that current oscillation arrives, so that oscillating table 1 is also locked in currently
The position swung to.It will be understood to those skilled in the art that swinging the groove of the periphery of the fan-shaped main body of locating piece 3 can set
It is set to triangle or other suitable shapes, correspondingly locking piece 4 is arranged the shape of locking projections and swings the groove of locating piece 3
Shape match.
The position of each groove 31 is matched with the angle for the swing for swinging locating piece 3.Preferably, in swinging locating piece 3
And oscillating table 1 swings to the corresponding groove of position setting of integer reading.It can be relative to central axes for example, swinging locating piece 3
Swing -9 °~9 °.Wherein " negative " angle indicates that left swing, " positive number " angle indicate right pendulum.Every position for swinging 1 ° is provided with one
Groove, enables oscillating table 1 accurately to swing to the integers degrees such as -9 °, -8 °, -7 ° ... 0 °, 1 °, 2 ° ..., 8 °, 9 °
Position.Preferably, every groove is correspondingly arranged a graduation mark, it is provided with 0, L (left side) 1-9 and R (right side) 1-9 totally 19 scales
Line.The a series of femoral prosthesis of design usually at the integer reading swung to, each reading correspond to a kind of femoral prosthesis
Model.And the not set groove of orthopaedics positioning device of the prior art, it is only directly read by doctor and determines whether oscillating table 1 swings
The position read to integer, easily introducing human error, it is difficult to the swing position of oscillating table 1 be accurately positioned.With prior art phase
Than, the present invention by the setting of groove, oscillating table 1 swings swing to next groove by a groove every time, avoids existing
The deviations of oscillating table 1 caused by thering is technology to be not allowed as doctor's reading.
In the present embodiment, locking piece 4 include be sheathed in locating rod 2 hollow cylindrical main body 42, elastic component 43 and
Fixing piece 44,42 sliding sleeve of cylindrical bodies are set in locating rod 2.Specifically, the inside of cylindrical bodies 42 is equipped with and locating rod 2
The locating rod mounting hole 45 that the length direction for prolonging locating rod 2 of periphery cooperation extends, locating rod 2 penetrate locating rod mounting hole 45
It is interior.It is additionally provided with downwardly projecting operation portion 421 in the front end of cylindrical bodies 42, be additionally provided with above operation portion 421 and swings positioning
The notch 422 of the fan-shaped main body cooperation of part 3, is provided with forwardly convex locking projections 41, locking projections 41 can in notch 422
It is fixed in cylindrical bodies with cylindrical bodies integrated design or by modes such as welding, screwing, clampings.
With continued reference to Fig. 2, the upside of locating rod 2 part corresponding with the cylindrical bodies of locking piece 4 is provided with along positioning
The limiting groove 99 that the length direction of bar 2 extends, the cylindrical bodies 42 of locking piece 4 are provided with slide-bar (not shown), cylindrical bodies
42 are slided and sliding its slide-bar along limiting groove 99 along locating rod 2, to realize the locking or solution with swing locating piece 2
Lock.
The elastic component 43 of such as spring is installed on the step (figure on the rear end 423 of locating rod 2 and inside locking piece 4
Do not show) on, then fixing piece 44 is fixed on the rear end 423 of locating rod 2 by way of such as pin, so that cylindrical bodies 42
It can be reciprocating in the stroke that limiting groove is limited under the action of the elastic force of elastic component 43.
When overcoming cylindrical bodies backward the elastic force of elastic component 43 to press, the locking projections 41 of 42 upper end of cylindrical bodies are de-
Grinding tooth connected in star 31 from the fan-shaped main body periphery for swinging locating piece 3, unlocks.When unclamping cylindrical bodies 42, cylindricality master
The locking projections of 42 upper end of body protrude into the grinding tooth connected in star 31 for swinging the fan-shaped main body periphery of locating piece 3, complete locking.
In one embodiment, by the way that pin 8 is passed through 42 upside of cylindrical bodies and is protruded into limiting groove 99, so that cylindricality master
Body 42 can be slided along limiting groove and fixing piece 44 is fixed on the rear end 423 of locating rod 2 by such as pin 9.
The femur osteotomy locating guider 200 and distal femoral resection that can be employed in conjunction with the invention is shown respectively in Fig. 4 and Fig. 5
The perspective view of protection block 300.Wherein, distal end positioned in alignment device 100 can be cut with femur osteotomy locating guider 200 and femur
It assembles and uses except protection block 300.
Femur osteotomy locating guider 200 is equipped with guide rod 21 and connecting column 22.Distal end positioned in alignment device 100 is equipped with and leads
To hole 14.Distal femoral resection protection block 300 is equipped with connecting hole 301, distal end positioned in alignment device 100 and femur osteotomy locating guider
200 are connected with each other by protruding into guide rod 21 in pilot hole 14.Femur locating guider 200 and distal femoral resection protection block 300
It is inserted into connecting hole 14 and is connected with each other by connecting column 22.Locking member 23 is additionally provided on femur locating guider 200.Distal femoral resection
Protection block 300 is equipped with locking slot 302.Locking member 23 cooperates with locking slot 302 cuts femur osteotomy locating guider 200 with femur
Except protection block 300 is mutually locked.
When operation, im rod (also known as vertical line bar) is inserted into the through-hole 16 of the locating rod 2 of distal end positioned in alignment device 100
Afterwards, by assembled im rod be inserted into pulp cavity, adjustment operation oscillating table 1 swing position so that osteotomy of distal line connector 100 with
Distal femur location contacts most outstanding, confirmation valgus angle is correct angle, to guarantee that osteotomy is accurate.
Assembled distal femoral resection protection block 300 and femur osteotomy locating guider 200 are inserted into distal end positioned in alignment dress
Two pilot holes 14 on 100 are set, and guarantee that distal femoral resection protection block 300 contacts well with distal femur anterior cortex, are tightened
Hook knob 10 on distal end positioned in alignment device 100 is fixed by femur osteotomy locating guider 200.
After valgus angle is adjusted, distal femoral resection protection block 300 is fixed on femur, then removes distal end positioned in alignment dress
100 and locating guider 200 are set, the related surgical of subsequent distal femur osteotomy is carried out.
It can be seen from the above, distal end positioned in alignment device of the invention using periphery there is fan-shaped swing of grinding tooth connected in star to determine
Position part is rapidly and accurately found to ensure the rotational angle position determining with grinding tooth connected in star by swinging structure and needs to swing
Point, and then save operating time.The apparatus structure is simple, can reduce manufacturing cost, while doctor being facilitated to manipulate instrument, subtracts
Few maloperation.In addition, the device is using fan-shaped swing component, so that simple and direct-viewing operation, hand difficulty in reduction is conducive to push away extensively
It is wide to use.
Presently preferred embodiments of the present invention has already been described in detail above, it is understood that if desired, the side of embodiment can be modified
Face provides other embodiment to use the aspect, feature and design of various patents, application and publication.In view of above
Detailed description, can make these and other variation to embodiment.In general, in the claims, term used should not be by
Think to be limited in specific embodiment disclosed in description and claims, but should be read to include all possible implementation
Whole equivalency ranges that example is enjoyed together with these claims.
Claims (10)
1. a kind of femur osteotomy distal end positioned in alignment device, is connected to distal femoral resection protection block by femur locating guider,
The femur locating guider is provided with guide rod, which is characterized in that the distal end positioned in alignment device includes oscillating table, swings
Locating piece and locating rod, the oscillating table are equipped with mounting hole, and one end of the locating rod is protruded into the mounting hole, the pendulum
Dynamic locating piece is fixedly connected with the oscillating table and can rotate with the oscillating table relative to the locating rod, the locating rod
Inside is equipped with the through-hole that extends along the locating rod length direction, and im rod across the through-hole and is inserted into distal femoral when operation
Interior, the oscillating table is additionally provided with pilot hole, and the pilot hole extends under the oscillating table from the upper surface of the oscillating table
Surface, the guide rod are inserted into the pilot hole.
2. positioned in alignment device in distal end as described in claim 1, which is characterized in that the distal end positioned in alignment device further includes
Locking piece, the locking piece are installed in the locating rod and are equipped with sticking department, and the swing locating piece is equipped with and the lock
The locking bit for determining portion's cooperation, after the swing locating piece rotates to required position, the sticking department and locking bit cooperation will
The swing locating piece is mutually locked with the locating rod.
3. positioned in alignment device in distal end as claimed in claim 2, which is characterized in that the swing locating piece has fan-shaped main
Body, the locking bit are the multiple sawtooth grooves for being set to the fan-shaped main body circumference, and the sticking department is to be set to the lock
Determine the locking projections on part, in latched position, the locking projections are caught in one of them described sawtooth grooves.
4. positioned in alignment device in distal end as claimed in claim 3, which is characterized in that the surface of the sector main body, which is equipped with, carves
Degree, the scale are corresponding with the angle that the swing locating piece is rotated relative to the locating rod.
5. positioned in alignment device in distal end as claimed in claim 3, which is characterized in that the middle part of the locking piece is equipped with along described
The major diameter fit of the locking piece through-hole that the length direction of locking piece extends, the locking piece through-hole and the locating rod is by the lock
Determine part to be sheathed in the locating rod.
6. positioned in alignment device in distal end as claimed in claim 5, which is characterized in that the distal end positioned in alignment device further includes
Elastic component and fixing piece, the elastic component are set between the locking piece and the fixing piece, by operating the locking piece
It presses the elastic component and the locking piece is slided in the locating rod so that described in locking projections disengaging
Sawtooth, the swing locating piece enter non-locked position.
7. positioned in alignment device in distal end as claimed in claim 6, which is characterized in that the lower part of the locking piece is equipped with operation
Portion drives the locking piece to slide in the locating rod by the operation portion.
8. positioned in alignment device in distal end as described in claim 1, which is characterized in that the axis of the pilot hole and the installation
The axis in hole is mutually perpendicular to.
9. positioned in alignment device in distal end as claimed in claim 8, which is characterized in that the distal end positioned in alignment device further includes
The side of hook knob, the oscillating table is equipped with knob hole, and the hook knob is installed in the knob hole, passes through the lock
Determine the movement of oscillating table described in knob-operated.
10. positioned in alignment device in distal end as claimed in claim 9, which is characterized in that the knob hole and the pilot hole phase
Logical, guide rod can also be fixed in the pilot hole by the hook knob.
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| CN201910730050.8A CN110477995B (en) | 2019-08-08 | 2019-08-08 | Femur osteotomy distal end alignment positioning device |
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| CN201910730050.8A CN110477995B (en) | 2019-08-08 | 2019-08-08 | Femur osteotomy distal end alignment positioning device |
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| CN110477995A true CN110477995A (en) | 2019-11-22 |
| CN110477995B CN110477995B (en) | 2024-06-11 |
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| CN111759397A (en) * | 2020-06-28 | 2020-10-13 | 北京力达康科技有限公司 | Distal bone defect of femoral condyle cuts bone locator |
| CN111803175A (en) * | 2020-08-10 | 2020-10-23 | 经纬医疗器材制造（深圳）有限公司 | Osteotomy positioning tool |
| CN112932606A (en) * | 2021-01-29 | 2021-06-11 | 北京市春立正达医疗器械股份有限公司 | Adjustable tibia osteotomy guider |
| CN113729839A (en) * | 2021-09-13 | 2021-12-03 | 张洪美 | Distal femur extramedullary positioning bone cutter in knee joint replacement operation |
| CN113855271A (en) * | 2021-09-28 | 2021-12-31 | 北京市春立正达医疗器械股份有限公司 | Tibia marrow external force line adjusting device |
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| CN111643151A (en) * | 2020-05-22 | 2020-09-11 | 北京市春立正达医疗器械股份有限公司 | Knee joint intramedullary positioning osteotomy device |
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| CN112932606A (en) * | 2021-01-29 | 2021-06-11 | 北京市春立正达医疗器械股份有限公司 | Adjustable tibia osteotomy guider |
| CN113729839A (en) * | 2021-09-13 | 2021-12-03 | 张洪美 | Distal femur extramedullary positioning bone cutter in knee joint replacement operation |
| CN113855271A (en) * | 2021-09-28 | 2021-12-31 | 北京市春立正达医疗器械股份有限公司 | Tibia marrow external force line adjusting device |
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