CN207075915U - Distal femur cuts locating guide - Google Patents
Distal femur cuts locating guide Download PDFInfo
- Publication number
- CN207075915U CN207075915U CN201720094324.5U CN201720094324U CN207075915U CN 207075915 U CN207075915 U CN 207075915U CN 201720094324 U CN201720094324 U CN 201720094324U CN 207075915 U CN207075915 U CN 207075915U
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- China
- Prior art keywords
- guide plate
- cutting
- femur
- distal femur
- connector
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Abstract
The utility model provides a kind of distal femur cutting locating guide cutting guide plate for including matching completely with patient femur distal end, the connector being removably plugged on cutting guide plate and the line of force bar being mounted on connector.The cutting guide plate has the main body of vertical shape, and the main body is provided with holding slot.The connector includes the grafting handle of the holding slot grafting in main body and the holding part being mounted on grafting handle with the cutting guide plate.The grafting handle is provided with the accepting hole that force line bar passes through.The line of force bar holds on the holding part and passes through the accepting hole of the grafting handle.Line of force bar is mounted on cutting guide plate by distal femur cutting locating guide of the present utility model by the connector being detachably arranged on cutting guide plate, to instruct operator to be accurately positioned guide plate is cut to patient femur distal end corresponding site, and then realize the purpose of the cutting guide plate guiding accurate osteotomy of cutting tool, it is simple in construction, it is easy to operate.
Description
【Technical field】
It the utility model is related to orthopedic medical device technical field, more particularly to a kind of distal femur cutting orientation direction
Part.
【Technical background】
Total knee replacement has become the essential therapeutic arsenals for the treatment of joint whole Terminal Disease at present, and it, which is used, cuts
The mode for installing prosthetic joint implants after bone recovers joint motions, substantially improves patients ' life quality.Put in traditional knee joint
Change in art, doctor generally distal femur osteotomy device is mounted on patient femur distal end by its own experience after again by femur power
Ray detection device is mounted on distal femur osteotomy device by verifying femur mechanical axis to confirm the installation of distal femur osteotomy device
Whether position is suitable, and then adjusts distal femur osteotomy device to correct position to guide doctor to complete the operation of distal femur osteotomy,
Ensure that completing the lower limb after distal femur osteotomy operates can make knee joint recover normal pass after fit on artificial joint prosthesis
Section motion.
But when patient's deformity of knee is serious, due to patient femur's line of force deformity, it is necessary to first carry out malformation correction,
Femoral far is only determined according to femur mechanical axis by traditional femur line of force check device being mounted on distal femur osteotomy device
The installation site of end osteotomy device is unable to reach the purpose for recovering knee joint proper motion after osteotomy, and in the process, doctor with
Distal femur osteotomy device is mounted on patient femur distal end by its own experience, then femur line of force check device is mounted on into femur
Position of the distal femur osteotomy device in distal femur is adjusted on osteotomy of distal device, it is cumbersome, cause operating time to be grown, increase
Add post-surgical infection's risk；Also, it is entirely that stock is carried out according to the experience and naked eyes of doctor during entirely assembling osteotomy
The adjustment of the position of bone osteotomy of distal device, there is also distal femur osteotomy device position installation position inaccurate to cause excessive osteotomy
The problem of.
Therefore, locating guide is cut it is necessory to provide a kind of distal femur, is lacked with overcoming present in prior art
Fall into.
【Utility model content】
The purpose of this utility model be to provide it is a kind of simple in construction, it is easy to operate, and can be matched completely with patient femur
And can precise positioning on patient femur distal end so that guide accurate osteotomy distal femur cut locating guide.
To achieve the above object, distal femur cutting locating guide of the present utility model is achieved by the following scheme：One
Kind distal femur cutting locating guide, is mounted on patient femur distal end guiding distal femur osteotomy, it includes and patient femur
The cutting guide plate of matching, the cutting guide plate include the main body of vertical plate-like, extended one of bifurcated are bent by body top
Make-up gripping arm, the abutting post located at clasp arm end, the abutting part of setting protruded out and by main body opposite side by main part side
A pair of locating dowels of setting are protruded out, the main body is provided with the cutting groove extended transversely through, and the distal femur cuts orientation direction
Part also includes the connector being removably plugged on cutting guide plate and the line of force bar being detachably arranged on connector, institute
State line of force bar by connector with cutting guide plate be mounted on together with.
Further, the connector include removably be plugged in it is described cutting guide plate main body on grafting handle and
The shackle member being removably plugged on grafting handle.
Further, run through to be provided with the main body of the cutting guide plate and consolidate for what grafting handle one end of the connector was inserted
Groove is held, the holding slot is between two locating dowels.
Further, the main body of the cutting guide plate is set with the perpendicular shape of grafting handle of the connector, the connection
The grafting handle of part is horizontal to be inserted in the main body of the cutting guide plate.
Further, the grafting handle has along its thickness direction through the holding hole set, and the shackle member, which has, inserts
Clamping joint in the holding hole.
Further, the grafting handle also has vertically through the accepting hole set and force line bar passes through, institute
State that accepting hole is in communication with the outside in side, opposite side and the holding hole connected state be on the grafting handle.
Further, the shackle member includes the clamping bar set in vertical shape and the fixing at the top of clamping bar
Platform, the clamping joint are located at clamping bar end, and the clamping joint is set with the substantially perpendicular shape of fixing platform.
Further, the fixing platform of the shackle member is provided with the spliced eye that force line bar corresponding site passes through, described to insert
Connect hole and the accepting hole of the grafting handle is correspondingly arranged.
Further, the line of force bar includes holding the clamping joint in the shackle member and can sequentially pass through the card
The body of rod of the spliced eye of fitting and the accepting hole of institute's grafting handle, the body of rod is to extend downwardly setting by clamping joint.
Further, the clamping joint of the line of force bar is set in hollow columnar, and the diameter of the clamping joint is more than the card
The width of the spliced eye of fitting.
Distal femur cutting locating guide of the present utility model is by being detachably arranged on the connection cut on guide plate
Part will be cut together with guide plate is mounted on line of force bar, and cutting guide plate quickly and accurately is mounted on into patient femur distal end to guide
Corresponding site, and then the purpose of the cutting guide plate guiding accurate osteotomy of cutting tool is realized, it is simple in construction, it is easy to operate.
【Brief description of the drawings】
Fig. 1 is the three-dimensional combination figure that distal femur of the present utility model cuts locating guide and femur.
Fig. 2 is the three-dimensional combination figure that distal femur of the present utility model cuts locating guide.
Fig. 3 is another view stereo constitutional diagram that distal femur of the present utility model cuts locating guide, the wherein line of force
Bar is not mounted on cutting guide plate.
Fig. 4 is the three-dimensional exploded view of the distal femur cutting locating guide shown in Fig. 2.
Fig. 5 show the three-dimensional exploded view of the distal femur cutting locating guide shown in Fig. 3.
Fig. 6 is the stereogram for the cutting guide plate that distal femur of the present utility model cuts locating guide.
Fig. 7 is the connector three-dimensional combination figure that distal femur of the present utility model cuts locating guide.
Fig. 8 is the three-dimensional exploded view of the connector shown in Fig. 7.
【Embodiment】
It is understandable to enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.
Refer to shown in Fig. 1 to Fig. 7, distal femur cutting locating guide 100 of the present utility model is mounted on patient's stock
Bone distal end, for guiding doctor is quick, accurately completes distal femur osteotomy to operate, it includes being mounted on patient by Kirschner wire 4
Cutting guide plate 1 on femur 200, the connector 2 for being detachably arranged on cutting guide plate 1 and it is detachably arranged on connector
Line of force bar 3 on 2.The cutting guide plate 1 matches completely with patient femur 200, and it is the medical image number according to patient femur
Reverse-engineered and by made of quick increases material manufacturing technology according to the threedimensional model of reconstruct.The line of force bar 3 is based on to patient
Straight line where the femur line of force is designed after the threedimensional model progress surgery planning of femur medical image reconstruct, and it passes through
Connector 2 is mounted on cutting guide plate 1, can quickly guide cutting guide plate 1 to be accurately mounted on patient femur 200.
It is in substantially the main body 10 of vertical plate-like setting that the cutting guide plate 1, which includes, is folded upward at rear bifurcated by main body 10 sets
The clasp arm 11 put and the abutting platform 12 that setting is protruded out by main body 10.The clasp arm 11 is upward by the top middle portion of main body 1
After bending in the horizontal direction bifurcated set, can be abutted with the corresponding site of patient femur 200.The cutting guide plate 1, which also has, to be set
Abutting post 13 in each end of clasp arm 11, it can be abutted with the corresponding site of patient femur 200.The post 13 that abuts is along vertical side
The corresponding end of clasp arm 11 is located to being drawn, it is substantially set in hollow cone shape.The abutting post 13 has along its axial direction
Direction is through the positioning hole 130 set and the multiple grooves 131 set along its circumferential direction.The positioning hole 130 supplies kirschner
Pin 4 is passed through, and cutting guide plate 1 is fixed and is mounted on the corresponding site of patient femur 200.The groove 131 and positioning hole 130
Insertion is set, and makees heat transmission in processing, prevents positioning hole 130 from being deformed in processing.
The main body 10 is provided with horizontal cutting groove 14 along its length, can house metallic gasket (not shown) and then
Passed through for osteotomy instrument (not shown) and guide osteotomy instrument to complete the operation of distal femur osteotomy.The cutting groove 14 is along main body
10 thickness direction runs through in main body 10.The locating dowel 15 for being located therein both sides is additionally provided with the main body 10.Institute
It is to protrude out setting in the horizontal direction by the outer surface of main body 10 to state locating dowel 15.The locating dowel 15 has passes through along its axial direction
Wear the through hole 150 put and multiple perforation 151 along its circumferentially distributed setting.The through hole 150 passes through for Kirschner wire 4, with
The cutting corresponding site of guide plate 1 is fixed and is mounted on the corresponding site of patient femur 200.The perforation 151 connects with the through hole 150
Set, make heat transmission in processing.Holding slot 16 also is offered along its thickness direction in the main body 10, can be with connector 2
Corresponding site coordinates, and connector 2 is mounted on cutting guide plate 1.The holding slot 16 is located at main body 10 positioned at two positioning
Position between post 15.For the 14 rectangular strip of cutting groove in main body 10, the holding slot 16 is located at cutting groove 14
Lower section.The holding slot 16 is set in runway shape.
It is to protrude out setting by surface level of the main body 10 close to patient femur 200 to abut platform 12, can be with patient femur 200
Corresponding site abuts.The platform 12 that abuts, can be with the phase of patient femur 200 with the bearing surface (non-label) in irregular setting
The surface at position is answered to be bonded completely.The opposite sides for abutting platform 12 and being located at main body 10 respectively with the locating dowel 15.It is described
The through hole 150 of locating dowel 15 is to be set along the thickness direction of main body 10 through main body 10 with abutting the corresponding site of platform 2.It is described to cut
Guide plate 1 is cut to abut with the corresponding site of patient femur 200 respectively by the abutting post 13 located at the end of clasp arm 11, abutting platform 12,
And the positioning hole 130 of abutting post 13, the through hole 150 of locating dowel 15 are each passed through and entrance patient femur 200 by Kirschner wire 4
In corresponding site, cutting guide plate 1 is fixed and is mounted on patient femur 200.
The connector 2 is detachably arranged on cutting guide plate 1 by the hard way of contact, and it includes removably grafting
In the grafting handle 20 in the main body 10 of cutting guide plate 1 and the holding part 21 being mounted on grafting handle 20.The grafting handle 20 is big
Cause in fish shape set, and it is horizontal be plugged in cutting guide plate 1 main body 10 on.The grafting handle 20 is narrow in middle width, both ends
Shape is set, its have with cut the holding slot 16 of guide plate 1 head 201 coordinated, the base portion 202 that is connected with head 201 and by
The extended afterbody 203 of base portion 202.The head 201 is in cone-shaped setting, and cutting guide plate 1 is mounted in grafting handle 20
It is contained in when in main body 10 in the holding slot 16 of cutting guide plate 1.The head 201 and the main body 10 of cutting guide plate 1 are located at fixing
Wall portion around groove 16 is interference engagement, and grafting handle 20 is fixed and is mounted on cutting guide plate 1.The grafting handle 20 and cutting
The 10 perpendicular shape of main body of guide plate 1 is set.The width on the head 201 is less than the width of the base portion 202.The head 201
Thickness be less than the base portion 202 thickness.
Set between the head 201 and the base portion 202 in offset shape, to form a step on base portion 202
204.After the step 204 can be contained on head 201 in the holding slot 16 of cutting guide plate 1 and main body 10 is located at holding slot 16 weeks
The position enclosed abuts.The base portion 202 have along its thickness direction through set holding hole 205 and with holding hole 205 1
The accepting hole 206 of side connection.The holding hole 205 is substantially set in runway shape, for housing the corresponding site of holding part 21.
The accepting hole 206 is vertically to be set through base portion 202, and its side connects with holding hole 205, opposite side and
External world's connection.The holding hole 205 and accepting hole 206 are substantially in " 8 " set up of character patt ern.
The holding part 21 is substantially set in vertical " 7 " shape, its have the clamping bar 210 that is set in vertical shape with
And the fixing platform 211 located at the top of clamping bar 210.The clamping bar 211 has the connection-peg 212 positioned at its bottom, can receive
It is dissolved in the holding hole 205 of grafting handle 20 and is located at the wall portion interference engagement around holding hole 205 with grafting handle 20, will card
Fitting 21 is fixed and is mounted on grafting handle 20.Clamping bar 211 is set with formed with the base portion 202 with grafting handle 20 in offset shape
The clamping platform 213 of abutting, the base portion 202 that can be connected to grafting handle 20 are located at position around holding hole 205.The fixing platform
211 horizontal settings, it which is provided with spliced eye 214 corresponding with the accepting hole of grafting handle 20 206.The spliced eye 214 is used
In accommodation line bar 3.The fixing platform 211 of the holding part 21 hangs down in the projection of horizontal plane with projection of the grafting handle 20 in horizontal plane
Directly.The 210 perpendicular shape of clamping bar of the grafting handle 20 and holding part 21 is set.
The line of force bar 3 is mounted in the shackle member 21 of connector 2, have clamping joint 30 above and with card
The body of rod 31 that joint 30 connects.The clamping joint 30 is set in hollow column, and it is mounted in connection 2 card in line of force bar 3
The fixing platform 211 that shackle member 21 is undertaken in when on fitting 21 is located at position around spliced eye 214.The clamping joint 30 it is straight
Footpath is more than the width of the spliced eye 214 of the shackle member 21.The body of rod 31 is to extend downwardly setting by clamping joint 30, its
The spliced eye 214 of shackle member 21 and the accepting hole 206 of grafting handle 20 are sequentially passed through when line of force bar 3 is mounted on connector 2.Institute
Clamping joint 30 is stated to set in coaxial wire with the body of rod 31.Straight line where the axis of the line of force bar 3 and patient's post-operative recovery
The lower limb line of force of normal arthrokinematics is parallel, can be cut when cutting guide plate 1 is mounted on patient femur 200 as adjustment
The reference frame of guide plate 1, and then guide operator that quickly cutting guide plate 1 is accurately fixed at the corresponding site of patient femur 200,
To complete the accurate osteotomy operation of distal femur.Straight line where the axis of the line of force bar 3 and patient's post-operative recovery natural joint
Projection of the lower limb line of force of motion on coronal-plane overlaps.
During assembling, connector 2 is first plugged in the cutting guide plate 1 by the head 201 of grafting handle 20 and is located at main body 10
On holding slot 16 in by connector 2 fix be mounted on cutting guide plate 1 on.Now, the grafting handle 20 of connector 2 is led with cutting
The 10 perpendicular shape of main body of plate 1 is set.The head 201 of the grafting handle 20 and the main body 1 of the cutting guide plate 1 are located at holding slot
Wall portion interference engagement around 16.The step 204 of the grafting handle 20 is connected to the main body 10 of the cutting guide plate 1 positioned at fixing
On position around groove 16.The connection-peg 212 of the shackle member 21 is done with the wall portion around the holding hole 205 of the grafting handle 20
Cooperation is related to, the connection-peg 212 of the shackle member 21 is contained in the holding hole 205 of the grafting handle 20.The shackle member 21
The base portion 202 that clamping platform 213 is connected to the grafting handle 20 is located at position around holding hole 205.Then by line of force bar 3
It is mounted on connector 2.Now, the clamping joint 30 of the line of force bar 3 is undertaken in the fixing platform 211 of the shackle member 21 of connector 2
Position around spliced eye 214.The body of rod 31 of the line of force bar 3 vertically sequentially passes through the clamping of connector 2
Connector 2 is stretched out after the spliced eye 214 of part 21, the accepting hole 206 of grafting handle 20.Now complete distal femur cutting positioning
The assembling of guiding piece 100.
When in use, the distal femur assembled cutting locating guide 100 is positioned over the corresponding site of patient femur 200
On, then by straight line where the axis of judgment line bar 3 coronal-plane projection whether the femur mechanical axis with patient femur 200
The position to adjust distal femur cutting locating guide 100 on the corresponding site of patient femur 200 is overlapped, until line of force bar 3
Projection of the straight line on coronal-plane overlaps with the femur mechanical axis of patient femur 200 in the projection of coronal-plane where axis, now
Relative position of the distal femur cutting locating guide 100 relative to patient femur 200 can be obtained.Then Kirschner wire 4 is passed through
It is each passed through the positioning hole 130 of abutting post 13 of cutting guide plate 1, the through hole 150 of locating dowel 15 enters 200 corresponding portion of patient femur
Position and distal femur cutting locating guide 100 is accurately mounted on the corresponding site of patient femur 200, and then by cutting guide plate
1 cutting groove 14 guides cutting tool (not shown) accurately to complete the operation of distal femur osteotomy.
Distal femur of the present utility model cut locating guide 100 by connector 2 removably by line of force bar 3 groups set
In on cutting guide plate 1, positioned with quickly and accurately guiding cutting guide plate 1 to the correct installed position of patient femur 200,
And then cutting guide plate 1 is realized the target for guiding cutting tool (not shown) quick, accurate osteotomy, it is simple in construction, easy to operate,
Doctor can be greatlyd save cutting guide plate was accurately positioned to the time of patient femur's corresponding site manually, improve procedure efficiency,
Patient's infection risk is reduced, lifts osteotomy precision, is avoided because cutting guide plate is by virtue of experience attached to patient femur's phase by doctor
Because cutting the problem of position inaccurate of guide plate causes excessive osteotomy or osteotomy deficiency to need osteotomy again when answering position, also overcome
The problem of proper motion can not be recovered using conventional femoral line of force checking device osteotomy posterior joint in knee joint severe deformities.This
Outside, the cutting guide plate 1 of distal femur cutting locating guide 100 of the present utility model passes through the abutting located at the end of clasp arm 11
The bottom of post 13 is bonded and abutted platform 12 completely with the corresponding site of patient femur 200 and the corresponding site of patient femur 200 is complete
Fitting, and be each passed through by Kirschner wire 4 and to abut the positioning hole 130 of post 13, the through hole 150 of locating dowel 15 enters patient femur
So that cutting guide plate 1 is stably fixed on patient femur 200 in 200, can avoid cutting caused by spur on patient femur 200 etc.
The problem of cutting 1 position inaccurate of guide plate.Also, distal femur cutting locating guide 100 of the present utility model will be by that will connect
The grafting handle 20 of part 2 is detachably arranged in the main body 10 of cutting guide plate 1, shackle member 21 is detachably arranged on into grafting
It is detachably arranged on handle 20, by line of force bar 3 on connector 2, connector 2, line of force bar 3 can be made accurate in cutting guide plate 1
Positioning on patient femur 200 on rear Self cleavage guide plate 1 to separating, and to carry out follow-up osteotomy operation, operation is easy, can be significantly
Save operating time.
To sum up, preferred embodiment of the present utility model is these are only, the scope of the utility model should not be limited with this,
It is i.e. every according to the simple equivalence changes that this claims of the present utility model and the utility model description are made with
Modification, all should still it belong in the range of the utility model patent covers.
Claims (10)
1. a kind of distal femur cuts locating guide, be mounted on patient femur distal end guiding distal femur osteotomy, it include with
The cutting guide plate of patient femur's matching, the cutting guide plate include the main body of vertical plate-like, by body top bending bifurcated extension
A pair of clasp arms setting, the abutting post located at clasp arm end, the abutting part of setting protruded out and by leading by main part side
Body opposite side protrudes out a pair of locating dowels of setting, and the main body is provided with the cutting groove extended transversely through, it is characterised in that：The stock
Bone distal cut locating guide also includes the connector being removably plugged on cutting guide plate and is detachably arranged on
Line of force bar on connector, the line of force bar by connector with cutting guide plate be mounted on together with.
2. distal femur as claimed in claim 1 cuts locating guide, it is characterised in that：The connector includes detachable
Ground is plugged in grafting handle and the shackle member that is removably plugged on grafting handle in the main body of the cutting guide plate.
3. distal femur as claimed in claim 2 cuts locating guide, it is characterised in that：In the main body of the cutting guide plate
Through the holding slot inserted provided with grafting handle one end for the connector, the holding slot is between two locating dowels.
4. distal femur as claimed in claim 2 cuts locating guide, it is characterised in that：It is described cutting guide plate main body with
The perpendicular shape of the grafting handle of the connector is set, and the grafting handle of the connector is horizontal to be inserted in the cutting guide plate
In main body.
5. distal femur as claimed in claim 3 cuts locating guide, it is characterised in that：The grafting handle has thick along it
Spend direction has the clamping joint being inserted in the holding hole through the holding hole set, the shackle member.
6. distal femur as claimed in claim 5 cuts locating guide, it is characterised in that：The grafting handle also has along perpendicular
Nogata to through setting and the accepting hole that passes through of force line bar, the accepting hole is in communication with the outside in side, opposite side with it is described
Holding hole connected state is on the grafting handle.
7. distal femur as claimed in claim 6 cuts locating guide, it is characterised in that：The shackle member is included in vertical
The clamping bar and the fixing platform at the top of clamping bar, the clamping joint that shape is set are located at clamping bar end, the clamping joint
Set with the substantially perpendicular shape of fixing platform.
8. distal femur as claimed in claim 7 cuts locating guide, it is characterised in that：On the fixing platform of the shackle member
The spliced eye passed through provided with force line bar corresponding site, the accepting hole of the spliced eye and the grafting handle are correspondingly arranged.
9. distal femur as claimed in claim 8 cuts locating guide, it is characterised in that：The line of force bar includes holding being located at
Clamping joint in the shackle member and the body of rod that the spliced eye of the shackle member and the accepting hole of institute's grafting handle can be sequentially passed through,
The body of rod is to extend downwardly setting by clamping joint.
10. distal femur as claimed in claim 9 cuts locating guide, it is characterised in that：The clamping joint of the line of force bar
Set in hollow columnar, the diameter of the clamping joint is more than the width of the spliced eye of the shackle member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720094324.5U CN207075915U (en) | 2017-01-24 | 2017-01-24 | Distal femur cuts locating guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720094324.5U CN207075915U (en) | 2017-01-24 | 2017-01-24 | Distal femur cuts locating guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207075915U true CN207075915U (en) | 2018-03-09 |
Family
ID=61427653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720094324.5U Active CN207075915U (en) | 2017-01-24 | 2017-01-24 | Distal femur cuts locating guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207075915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974345A (en) * | 2019-08-08 | 2020-04-10 | 宽岳医疗器材（苏州）有限公司 | Femoral osteotomy positioning assembly |
| CN113143398A (en) * | 2021-03-29 | 2021-07-23 | 北京市春立正达医疗器械股份有限公司 | Distal femur osteotomy instrument |
-
2017
- 2017-01-24 CN CN201720094324.5U patent/CN207075915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974345A (en) * | 2019-08-08 | 2020-04-10 | 宽岳医疗器材（苏州）有限公司 | Femoral osteotomy positioning assembly |
| CN113143398A (en) * | 2021-03-29 | 2021-07-23 | 北京市春立正达医疗器械股份有限公司 | Distal femur osteotomy instrument |
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