CN109700499A - A kind of distal femur osteotomy device - Google Patents
A kind of distal femur osteotomy device Download PDFInfo
- Publication number
- CN109700499A CN109700499A CN201910099537.0A CN201910099537A CN109700499A CN 109700499 A CN109700499 A CN 109700499A CN 201910099537 A CN201910099537 A CN 201910099537A CN 109700499 A CN109700499 A CN 109700499A
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- China
- Prior art keywords
- osteotomy
- femur
- guide plate
- slide bar
- internal fixation
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 103
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 13
- 210000003127 knee Anatomy 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000002980 postoperative effect Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 241001227561 Valgus Species 0.000 abstract 1
- 238000013150 knee replacement Methods 0.000 abstract 1
- 241000469816 Varus Species 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000000629 knee joint Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011882 arthroplasty Methods 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011883 total knee arthroplasty Methods 0.000 description 1
Abstract
A kind of distal femur osteotomy device, including the femur marrow Internal fixation pin being fixed in femoral bone cavitas medullaris, the connecting rod being mounted on femur marrow Internal fixation pin, the femur osteotomy guide plate being mounted in connecting rod and the osteotomy reflectogauge being mounted on femur osteotomy guide plate, the present invention is easy to adjust, guarantees interior outside osteotomy with a thickness of predetermined osteotomy thickness, osteotomy angle is valgus angle in patient's physiological, realize the dynamics in knee replacements to line, conducive to patient's quick recovery, to improve displacement postoperative patient knee articulation satisfaction.
Description
Technical field
The present invention relates to a kind of distal femur osteotomy devices.
Background technique
For the patient of advanced stage pathologic changes of knee joint, total knee arthroplasty be it is a kind of extensive use and it is effective
Treatment method.It is the basis of knee prosthesis to line technology, it refers to which kind of patient carry out line according in joint replacement
The method for carrying out osteotomy and installing prosthese.Now traditional is mechanical axis to line to line method, i.e., closes according to late-segmental collapse-knee
The lower limb mechanical axis that the section center-ankle-joint line of centres is constituted carries out osteotomy and installation prosthese, the in this way knee joint after displacement
The rotary shaft of prosthese is perpendicular to mechanical axis, and for femur osteotomy, current way is to be inserted into pulp cavity bar by pulp cavity to find
The anatomical axis of femur, using this anatomical axis as reference, according to the degrees such as 5 °, 6 ° or 7 °, (this degree measures anatomical axis by preoperative X piece
Obtained with the angle of mechanical axis) it goes to determine Osteotomy, thus realize mechanical axis to line, but according to dynamics to lineation opinion,
Innately there is varus in the knee joint of people, therefore according to dynamics to lineation opinion, femur should also maintain varus position osteotomy；In order to
It realizes that this target needs to amputate the distal femur (because most patients distal femur has abrasion) of different-thickness, and to protect
Card Osteotomy is parallel to the joint line before abrasion occurs, and current technology and tool are difficult to realize.Someone is compensated by patch
The method of distal femur defect is attempted to carry out, but the solution is inaccurate, to patient's experience and technical level requirement
It is higher.
Summary of the invention
The present invention solve the deficiencies in the prior art and provide it is a kind of it is easy to adjust, guarantee in outside osteotomy with a thickness of us
Preset osteotomy thickness, osteotomy angle are the distal femur osteotomy device of patient's physiological varus angle.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of distal femur osteotomy device, including be fixed in femoral bone cavitas medullaris femur marrow Internal fixation pin 4, be mounted on femur
It connecting rod 3 on Medullary fixation needle 4, the femur osteotomy guide plate 2 being mounted in connecting rod 3 and is mounted on femur osteotomy guide plate 2
Osteotomy reflectogauge 1；
The connecting rod 3 is L-type, and one end of the connecting rod 3 is mounted on femur marrow Internal fixation pin 4 by connector 31
On, the other end is connect by a pressurization screw rod 21 with femur osteotomy guide plate 2, and the femur osteotomy guide plate 2 is mounted in connecting rod 3
After can be with the screw rod 21 that pressurizes for axis rotation, and tightening pressurization screw rod 21 then can be in resected femur osteotomy guide plate 2 and femur marrow
4 angular relationship of fixed pin；
The femur osteotomy guide plate 2 is equipped with osteotomy saw blade guide groove 23, positioning round orifice and multiple nail hole 22, and two described fixed
Circle of position hole is symmetricly set on femur osteotomy guide plate 2 centered on 23 long side center line of osteotomy saw blade guide groove；
The osteotomy reflectogauge 1 includes slide bar 12 and the straight baffle 11 for contacting distal femur bone face, described
Slide bar 12 is L-type, and one end of the slide bar 12 matches with the positioning round orifice size, and the slide bar 12 is inserted into the positioning
In circular hole, and slide bar 12 can rotate in the positioning round orifice, be set on the other end of the slide bar 12 and sliding bar
The sliding part 14 of connection, the sliding part 14 is equipped with the locking screw 13 for being fixed on sliding part on slide bar, described flat
Straight baffle 11 is fixed on the sliding part 14, and the straight baffle 11 is mounted on slide bar 12 rear and femur marrow Internal fixation pin 4
Vertically.
Further, the tip of the femur marrow Internal fixation pin 4 is equipped with " ten " font slot.Work with anti-rotation, fixation
With.
Further, the connector 3 and sliding part 14 are sleeve.
Further, the pressurization screw rod 21 is arranged on 23 long side center line position of osteotomy saw blade guide groove.
Further, the femur osteotomy guide plate 2 is equipped with along 23 long side center line position of osteotomy saw blade guide groove
Screw hole is correspondingly provided with through-hole in the connecting rod 3, and the pressurization screw rod 21 is mounted in the screw hole by the through-hole.
Further, the slide bar 12 is equipped with for showing that straight baffle 11 moves up and down the thickness scale of distance.
Further, the nut for facilitating hand to revolve is equipped in the pressurization screw rod 21 and locking screw 13.
Due to using the above structure, femur marrow Internal fixation pin 4 being squeezed into towards pulp cavity in distal femur, in femur Medullary fixation
The tail end of needle 4 connects femur osteotomy guide plate 2, and osteotomy reflectogauge is installed in the positioning round orifice of 2 two sides of femur osteotomy guide plate
1, when use, first unscrews pressurization screw rod 21, and femur osteotomy guide plate 2 can be slided and be rotated in connecting rod 3；It is preoperative previously according to soft
Bone degree of wear etc. determines interior outside distal femur osteotomy thickness, is inserted into the connecting hole inside and outside femur osteotomy guide plate 2
Osteotomy reflectogauge 1 is regulated straight by the thickness scale on slide bar 12 according to predetermined two sides osteotomy thickness
Position of the baffle 11 on slide bar 12, then tightens locking screw 13, locks the position of straight baffle 11, then by adjusting stock
Bone osteotomy guide plate 2, mobile straight baffle 11, so that the distal femur bone of the contact respectively face of two straight baffles 11, to obtain
Then the front-rear position and deflection angle of osteotomy module tighten pressurization screw rod 21, squeeze into the nail hole of femur osteotomy guide plate 2 solid
Fixed nail, femur osteotomy guide plate 2 is fixed with femur, then dismantles osteotomy reflectogauge 1, takes out femur marrow Internal fixation pin 4, then
Distal femur osteotomy is realized by the osteotomy saw blade guide groove 23 of 2 distal end of femur osteotomy guide plate, thus outside osteotomy thickness in guaranteeing
For our preset osteotomy thickness, osteotomy angle is patient's physiological varus angle.
In conclusion the present invention solve the deficiencies in the prior art and provide a kind of accuracy it is high, it is easy to adjust, guarantee in
Outside osteotomy fills with a thickness of predetermined osteotomy thickness, the distal femur osteotomy that osteotomy angle is patient's physiological varus angle
It sets, to realize the dynamics of replacement knee in arthroplasty to line, the original angle of postoperative patient motion of knee joint axis holding, conducive to patient
Quick recovery is improved the quality of living to improve displacement postoperative patient knee articulation satisfaction.
Detailed description of the invention
Fig. 1 is perspective view of the invention.
In attached drawing, 1, osteotomy reflectogauge；2, femur osteotomy guide plate；11, straight baffle；12, slide bar；13, spiral shell is locked
Bar；14, sliding part；21, clamping screw；22, nail hole；23, osteotomy saw blade guide groove；3, connecting rod；31, connector；4, femur marrow
Internal fixation pin.
Specific embodiment
For a better understanding of the present invention, with reference to the accompanying drawing and embodiment, invention is described in further detail, but
Embodiments of the present invention are not limited only to this, and protection scope of the present invention is also related to those skilled in the art and conceives according to the present invention
It is conceivable that equivalent technologies mean.
As shown in Figure 1, a kind of distal femur osteotomy device, including be fixed in femoral bone cavitas medullaris femur marrow Internal fixation pin 4,
It the connecting rod 3 that is mounted on femur marrow Internal fixation pin 4, the femur osteotomy guide plate 2 being mounted in connecting rod 3 and is mounted on femur and cuts
Osteotomy reflectogauge 1 on bone conduction plate 2；The tip of the femur marrow Internal fixation pin 4 is equipped with and is conveniently fixed in femur marrow
" ten " font slot.
The femur osteotomy guide plate 2 is equipped with osteotomy saw blade guide groove 23, positioning round orifice and multiple nail hole 22, and two described fixed
Circle of position hole is symmetricly set on femur osteotomy guide plate 2 centered on 23 long side center line of osteotomy saw blade guide groove；The femur osteotomy
Guide plate 2 is being equipped with screw hole along 23 long side center line position of osteotomy saw blade guide groove, is correspondingly provided in the connecting rod 3 logical
Hole, the pressurization screw rod 21 are mounted in the screw hole by the through-hole；
The connecting rod 3 is L-type, and one end of the connecting rod 3 is sleeved on femur marrow Internal fixation pin 4 by connector 31
On, the other end is connect by a pressurization screw rod 21 with femur osteotomy guide plate 2, and connector 31 is equipped with screw rod and connector 31 is facilitated to lock
It is scheduled on femur marrow Internal fixation pin 4, the femur osteotomy guide plate 2 is flat with femur marrow Internal fixation pin 4 after being mounted in connecting rod 3
Row；
The osteotomy reflectogauge 1 includes slide bar 12 and the straight baffle 11 for contacting distal femur bone face, described
Slide bar 12 is L-type, and one end of the slide bar 12 matches with the positioning round orifice size, and the slide bar 12 is inserted into the positioning
In circular hole, and slide bar 12 can rotate in the positioning round orifice, be set on the other end of the slide bar 12 and sliding bar
The sliding part 14 of connection, the sliding part 14 is equipped with the locking screw 13 for being fixed on sliding part on slide bar, described flat
Straight baffle 11 is fixed on the sliding part 14, and the straight baffle 11 is mounted on slide bar 12 rear and femur marrow Internal fixation pin 4
Vertically, the slide bar 12 is equipped in the one end for installing straight baffle 11 for showing that straight baffle 11 moves up and down the thickness of distance
Scale.
In this example, the nut for facilitating hand to revolve is equipped in the pressurization screw rod 21 and locking screw 13.
Operation consent squeezes into femur marrow Internal fixation pin 4 towards pulp cavity in distal femur, in the tail end of femur marrow Internal fixation pin 4
Femur osteotomy guide plate 2 is connected, osteotomy reflectogauge 1 is installed in the positioning round orifice of 2 two sides of femur osteotomy guide plate, in use,
First unscrew pressurization screw rod 21, femur osteotomy guide plate 2 can be slided and be rotated in connecting rod 3；It is preoperative previously according to cartilage wear journey
Degree etc. determines interior outside distal femur osteotomy thickness, and osteotomy thickness is inserted into the connecting hole inside and outside femur osteotomy guide plate 2
Measuring appliance 1 is regulated straight baffle 11 and existed by the thickness scale on slide bar 12 according to predetermined two sides osteotomy thickness
Then locking screw 13 is tightened in position on slide bar 12, lock position of the straight baffle 11 on slide bar 12, then pass through adjusting
Femur osteotomy guide plate 2, mobile straight baffle 11, so that the distal femur bone of the contact respectively face of two straight baffles 11, thus
To the front-rear position and deflection angle of osteotomy module, pressurization screw rod 21 is then tightened, is squeezed into the nail hole of femur osteotomy guide plate 2
Fixing glue fixes femur osteotomy guide plate 2 with femur, then dismantles osteotomy reflectogauge 1, takes out femur marrow Internal fixation pin 4,
Distal femur osteotomy is realized by the osteotomy saw blade guide groove 23 of 2 distal end of femur osteotomy guide plate again, so that outside osteotomy is thick in guaranteeing
Degree is our preset osteotomy thickness, and osteotomy angle is patient's physiological varus angle.
In addition, it should be noted that, this patent is not limited to above embodiment, as long as its part does not specify specific size
Or shape, then the part can be any size or shape adaptable with its structure, no matter and making in its material composition
Any variation, it is all to be designed using structure provided by the present invention, all it is a kind of deformation of the invention, is considered as in the present invention
Within protection scope.
Claims (7)
1. a kind of distal femur osteotomy device, it is characterised in that: including the femur marrow Internal fixation pin being fixed in femoral bone cavitas medullaris
(4), the connecting rod (3) that is mounted on femur marrow Internal fixation pin (4), the femur osteotomy guide plate (2) being mounted on connecting rod (3) and
The osteotomy reflectogauge (1) being mounted on femur osteotomy guide plate (2)；
The connecting rod (3) is L-type, and one end of the connecting rod (3) is mounted on femur marrow Internal fixation pin by connector (31)
(4) on, the other end is connect by pressurization screw rod (21) with femur osteotomy guide plate (2), and the femur osteotomy guide plate (2) is mounted on
It is parallel with femur marrow Internal fixation pin (4) after in connecting rod (3), while can be with the screw rod that pressurizes (21) for axis rotation；
The femur osteotomy guide plate (2) is equipped with osteotomy saw blade guide groove (23), positioning round orifice and multiple nail hole (22), described in two
Positioning round orifice is symmetricly set on femur osteotomy guide plate (2) centered on osteotomy saw blade guide groove (23) long side center line；
The osteotomy reflectogauge (1) includes slide bar (12) and the straight baffle (11) for contacting distal femur bone face, institute
Stating slide bar (12) is L-type, and one end and the positioning round orifice size of the slide bar (12) match, and the slide bar (12) is inserted into
In the positioning round orifice, and slide bar (12) can rotate in the positioning round orifice, be set on the other end of the slide bar (12)
There is the sliding part (14) connecting with sliding bar, the sliding part (14) is equipped with the lock for being fixed on sliding part on slide bar
Determine screw rod (13), the straight baffle (11) is fixed on the sliding part (14), and the straight baffle (11) is mounted on slide bar
(12) vertical with femur marrow Internal fixation pin (4) after on.
2. distal femur osteotomy device according to claim 1, it is characterised in that: the femur marrow Internal fixation pin (4)
Tip is equipped with " ten " font slot.
3. distal femur osteotomy device according to claim 1, it is characterised in that: the connector (3) and sliding part
It (14) is sleeve.
4. distal femur osteotomy device according to claim 1, it is characterised in that: pressurization screw rod (21) setting is being cut
On bone saw piece guide groove (23) long side center line position.
5. distal femur osteotomy device according to claim 1, it is characterised in that: the femur osteotomy guide plate (2) is on edge
Osteotomy saw blade guide groove (23) long side center line position is equipped with screw hole, is correspondingly provided with through-hole on the connecting rod (3), described
Pressurization screw rod (21) is mounted in the screw hole by the through-hole.
6. distal femur osteotomy device according to claim 3, it is characterised in that: the slide bar (12) is equipped with for showing
Show that straight baffle (11) moves up and down the thickness scale of distance.
7. distal femur osteotomy device according to claim 1, it is characterised in that: the pressurization screw rod (21) and locking spiral shell
The nut for facilitating hand to revolve is equipped on bar (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099537.0A CN109700499A (en) | 2019-01-31 | 2019-01-31 | A kind of distal femur osteotomy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099537.0A CN109700499A (en) | 2019-01-31 | 2019-01-31 | A kind of distal femur osteotomy device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109700499A true CN109700499A (en) | 2019-05-03 |
Family
ID=66263493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910099537.0A Pending CN109700499A (en) | 2019-01-31 | 2019-01-31 | A kind of distal femur osteotomy device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109700499A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714184A (en) * | 2020-06-29 | 2020-09-29 | 中国人民解放军总医院 | A cut bone double guide plate system for high-order osteotomy of shin bone |
| CN112826568A (en) * | 2021-01-04 | 2021-05-25 | 南昌大学第二附属医院 | Femoral extramedullary positioning osteotomy device in knee joint replacement and using method thereof |
| CN113057712A (en) * | 2021-02-25 | 2021-07-02 | 北京市春立正达医疗器械股份有限公司 | 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132067A (en) * | 1995-01-06 | 1996-10-02 | 小罗伯特·E·布思 | Instrumentation for use in orthopaedic surgery |
| TWM310697U (en) * | 2006-09-01 | 2007-05-01 | United Orthopedic Corp | Surgical appliances with manual total knee arthroplasty |
| CN209808458U (en) * | 2019-01-31 | 2019-12-20 | 中南大学湘雅医院 | Distal femur osteotomy device |
-
2019
- 2019-01-31 CN CN201910099537.0A patent/CN109700499A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132067A (en) * | 1995-01-06 | 1996-10-02 | 小罗伯特·E·布思 | Instrumentation for use in orthopaedic surgery |
| TWM310697U (en) * | 2006-09-01 | 2007-05-01 | United Orthopedic Corp | Surgical appliances with manual total knee arthroplasty |
| CN209808458U (en) * | 2019-01-31 | 2019-12-20 | 中南大学湘雅医院 | Distal femur osteotomy device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714184A (en) * | 2020-06-29 | 2020-09-29 | 中国人民解放军总医院 | A cut bone double guide plate system for high-order osteotomy of shin bone |
| CN112826568A (en) * | 2021-01-04 | 2021-05-25 | 南昌大学第二附属医院 | Femoral extramedullary positioning osteotomy device in knee joint replacement and using method thereof |
| CN113057712A (en) * | 2021-02-25 | 2021-07-02 | 北京市春立正达医疗器械股份有限公司 | 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 |
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| CB03 | Change of inventor or designer information |
Inventor after: Xie Jie Inventor after: Lu Wei Inventor after: Hu Yihe Inventor after: Liu Donghao Inventor after: Su Weiping Inventor after: Liu Tianhua Inventor after: Wang Haoyi Inventor before: Xie Jie Inventor before: Su Weiping Inventor before: Hu Yihe Inventor before: Liu Donghao Inventor before: Lu Wei Inventor before: Liu Tianhua Inventor before: Wang Haoyi |
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