CN108670390A - Improved femoral intramedullary guide rod positioning system for knee joint unicondylar replacement - Google Patents
Improved femoral intramedullary guide rod positioning system for knee joint unicondylar replacement Download PDFInfo
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- CN108670390A CN108670390A CN201810527441.5A CN201810527441A CN108670390A CN 108670390 A CN108670390 A CN 108670390A CN 201810527441 A CN201810527441 A CN 201810527441A CN 108670390 A CN108670390 A CN 108670390A
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- intramedullary
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
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- 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
- A61B17/1767—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee for the patella
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/74—Devices for the head or neck or trochanter of the femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention provides an improved femoral intramedullary guide rod positioning system for knee joint unicondylar replacement, and belongs to the technical field of medical instruments. The intramedullary rod connector adopts a 'swing arm' design that the intramedullary rod connector is long and short and is parallel and can rotate along the same round mandrel, and can be matched and inserted into the intramedullary positioning guide rod and the femoral drilling guide device, so that the intramedullary positioning guide rod, the intramedullary rod connector and the femoral drilling guide device are perfectly matched and connected with each other; the intramedullary positioning guide rod adopts a concave design, can effectively utilize the space between condyles and behind the patella and is led out from the lower part of the patella, the patella does not need to be excessively pulled, and the lower segment part of the patella can play a role in pulling the patellar ligament and the soft tissue by the pulling hook to expose the surgical field; meanwhile, the intramedullary positioning guide rod also adopts the design of bending prevention and rotation prevention, so that the precision stability of the intramedullary positioning guide rod can be effectively enhanced, and the positioning accuracy of the femoral prosthesis is improved.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to knee joint single condyle displacement technique mini-incision and prosthese is accurate
Field of locating technology, specifically a kind of Improvement type femoral prosthesis position medical apparatus, are mainly used for using under minimally invasive minimum notch
Complete the precise positioning of knee list condyle joint replacement femoral prosthesis position and best placement.
Background technology
Clinically carry out knee joint single condyle replacement operation extensively at present, can more retain bone relative to Total knee arthroplasty
Amount, closer to physiological motion of knee joint function, better proprioception and knee articulation degree and patient restore faster.
The mono- condyle knee joint systems (MP) of Microplasty begun to use for 2012 are on the basis of the list condyle knee prosthesis of third generation Oxford
Prodigious improvement has been done, using small notch by kneecap, without the kneecap that turns up in art, has been realized by femur marrow interior locating device component
The precise positioning of femoral prosthesis.In order to appear notch and ideally be inserted into femur marrow inner guide, it is often necessary to sting except inboard portion
Kneecap and spur for the case of some serious " kneecap blocks ", or even need upward expansion operative incision appropriate, Cai Nengshun
Profit is inserted into location guide in femur marrow.Current clinically common femur marrow inner guide designs for linear type, the kneecap on the inside of knee
Under other mini-incision exposure, femur im rod is will appear when being inserted into location guide in marrow and forms " kneecap screening with side impaction in kneecap
Gear " often needs assistant that kneecap could be smoothly inserted into marrow inner guide to drawing on the outside of knee.There is still a need for fit again for several cases
When expanding operative incision, mitigates the tension of " kneecap blocks ", be preferably inserted into femur osteotomy guider.Meanwhile it even if smoothly inserting
Enter femur marrow interior bar and femur drill guide, it is still necessary to which in addition a doctor suitably exposes visual area using drag hook, can be smooth
Im rod connector is installed, the drilling for carrying out femur prepares.For knee joint Minimally Invasive Surgery, while being inserted into femur im rod, peace
Femur drill guide and connecting rod are put, seems that visual area space is inadequate sometimes, certainly will need suitably to expand the side such as operative incision
Formula reduces the advantage that Minimally Invasive Surgery postoperative pain is light, rehabilitation is fast to a certain degree.
Invention content
It is an object of the present invention to overcome the deficiencies of the prior art and provide a kind of Improvement type knee joint single condyle displacement technique stock
Marrow inner guide positioning system.
In order to realize above-mentioned target, the present invention provides following technical solutions：
A kind of Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system, including location guide in marrow, in marrow
Rod connector, femur drill guide.
Wherein, location guide includes marrow inner segment, kneecap section and linkage section successively in marrow；Its marrow inner segment is being inserted into femur
In；Its kneecap section is designed using " recessed " type, and linkage section is provided with jack to connect im rod connector；Meanwhile marrow inner segment
It is located along the same line with linkage section.Location guide is designed using integrated molding in the marrow.
In the present invention, the kneecap section of location guide is designed using " recessed " shape in marrow, can efficiently use intercondylar recessed and kneecap
Bone rear space gap exports from kneecap lower section and plays the role of drag hook drawing ligamentum patellae and soft tissue exposure visual area；Meanwhile
The form of " fin " has been used for reference at the both ends of kneecap section, is designed using " anti-bending anti-rotation ", company is increased in right angle portions corner
Junction is accumulated, and to improve the ability of anti-deformation of guide rod, increases precision, the effective precision stability for enhancing location guide in marrow carries
The accuracy of high femoral prosthesis positioning.
Im rod connector includes short linking arm, connection handle, long linking arm；Wherein, short linking arm and long linking arm difference
It is movably arranged on the same end of connection handle, and arranged in parallel between short linking arm and long linking arm, short linking arm and long company
Connecing arm can rotate 360 ° around connection handle；Further, it is arranged on the linkage section of location guide in short linking arm and marrow
The structure of jack is adapted, and the jack can be inserted to connect location guide in marrow；Long linking arm is then connecting femur
Drill guide.
In the present invention, im rod connector using one is long and the other is short two it is parallel and can along same circle core shaft rotate " pendulum
Arm " designs, and can match and be inserted into marrow in location guide and femur drill guide, and location guide in marrow, im rod is made to connect
It connects perfection between three device, femur drill guide components and is mutually matched linking.
In the present invention, femur drill guide uses the locating slot design (prior art) with special angle,
On be provided with side jack and top drilling, lower section drilling；The side jack connects to be inserted into the long of im rod connector
Arm is connect, the structure of the long linking arm and the side jack is adapted, and can be inserted in the side jack to connect femur
Drill guide；The top drilling and lower section are boring to realize condyle of femur positioning drilling.Above and below the femur drill guide
The jack direction that two boring directions and medial/lateral are connected with im rod connector, coronal-plane are in 7 ° of angles, and sagittal plane is in
10 ° of angles.
Whole system operation principle is：It is flat in condyle of femur and shin bone after being smoothly inserted into location guide in marrow in femur
Femur drill guide is put between platform；Then successively by short " swing arm " of im rod connector be inserted into marrow in location guide insert
Kong Zhong, long " swing arm " are inserted into the side jack of femur drill guide, and adjustment femur drill guide is located in femur
Side condyle center, and placed against condylus medialis femoris, at this point, femur boring direction is in location guide direction in marrow on coronal-plane
7 ° of varus (angle of side receptacle axis and central axes be in 7 °), in 10 ° of hypsokinesis (side receptacle axis and drilling side in sagittal plane
It it is in 10 ° to the angle of axis)；4mm, 6mm drill bit is finally used to pass through the top drilling of femur drill guide, lower drill with ferrule respectively
Hole drills through femur, completes condyle of femur boring positioning.
In the present invention, after location guide is inserted into femur in marrow, only there are a small portions of location guide in marrow outside femur
Point, the location guide and when femur drill guide in marrow female connector connection marrow, can hit with a hammer makes im rod connect
" linking arm " of device is completely inserted into jack, if that there are angles is inconsistent for " linking arm " and jack, the pass dialled by lever sled
System may be such that in the marrow outside femur location guide and femur marrow inside points deforms upon, angulation, ultimately cause femur positioning
Deviation.Therefore location guide uses " anti-bending anti-rotation " design in marrow, in right angle portions corner, increases component metal part
Connection area improves the ability of anti-deformation of guide rod, increases precision.
In a preferred embodiment, in marrow location guide be provided with large, medium and small three kinds of models may be selected, with meet not
Corrective surgery with kneecap size uses.
Compared with prior art, the beneficial effects of the present invention are：
The Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system that the present invention designs, can both facilitate micro-
" kneecap blocks " is avoided under wound small notch, it is maximized to retain kneecap form and bone amount, while the essence of femoral prosthesis may be implemented
Certainly position.Only need a people that can complete to operate, it is time saving and energy saving, it is most important that the operative incision smaller of needs is operated, it is postoperative
Realize more preferably quick recovery.
Location guide efficiently uses intercondylar recessed and kneecap rear sky using the design of " recessed " type in marrow in the present invention
Between, from kneecap lower section " export ", without excessively drawing kneecap, kneecap the lower section can play drag hook drawing ligamentum patellae and soft tissue
The effect of exposure visual area.Meanwhile " the anti-bending anti-rotation " of location guide designs in marrow, effectively enhances the precision of location guide in marrow
Stability improves the accuracy of femoral prosthesis positioning.The im rod connector connecting rod parallel using one is long and the other is short, and the two can
It is rotated 360 ° respectively along same circle core shaft, matching degree is high.
Description of the drawings
Fig. 1 is the schematic front view of location guide in marrow provided in an embodiment of the present invention；
Fig. 2 is the schematic front view of im rod connector provided in an embodiment of the present invention；
Fig. 3 a are the side views of femur drill guide provided in an embodiment of the present invention；
Fig. 3 b are the vertical views of femur drill guide provided in an embodiment of the present invention；
Fig. 3 c are the front views of femur drill guide provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram that location guide is inserted into femur in marrow provided in an embodiment of the present invention；
Fig. 5 is the company of Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system provided in an embodiment of the present invention
Connect schematic diagram；
Fig. 6 is the design specification schematic diagram of location guide in marrow provided in an embodiment of the present invention；
Fig. 7 is the design specification schematic diagram of im rod connector provided in an embodiment of the present invention.
Reference sign：
Location guide 1, marrow inner segment 11, kneecap section 12, linkage section 13 in marrow；
Im rod connector 2, short linking arm 21, connection handle 22, long linking arm 23；
Femur drill guide 3, side jack 31, top drilling 32, lower section drilling 33, side receptacle axis 34, drilling
Azimuth axis 35, central axes 36, the angle α of side receptacle axis 34 and boring direction axis 35, side receptacle axis 34 are in
The angle β of axis 36；
A、B：Location guide marrow inner segment in marrow
C、D：Location guide kneecap section in marrow
E：Location guide linkage section in marrow
F：Location guide " anti-bending anti-rotation " designs in marrow
M：The short linking arm of im rod connector
N：The long linking arm of im rod connector
Design parameter：B=26.2cm E=2.4cm marrow inner segment shank diameters d=0.5cm
The overall diameter D=0.7cm internal diameters d=0.4cm of " E " section
Small size guide rod：A=27.2cm C=4.0cm D=3.0cm
Medium size guide rod：A=27.6cm C=4.5cm D=3.5cm
Large size guide rod：A=28.0cm C=5.0cm D=4.0cm
Specific implementation mode
Below in conjunction with specific embodiment and its attached drawing to Improvement type knee joint single condyle displacement technique femur provided by the invention
The technical solution of marrow inner guide positioning system is described further.In conjunction with following explanation, advantages and features of the invention will more
It is clear.
It should be noted that the embodiment of the present invention has preferable implementation, it is not to any type of limit of the present invention
It is fixed.The combination of technical characteristic or technical characteristic described in the embodiment of the present invention is not construed as isolated, they can
To be combined with each other to reach superior technique effect.The range of the preferred embodiment for the present invention can also include other reality
It is existing, and this should be understood by person of ordinary skill in the field of the embodiment of the present invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.Institute that is shown here and discussing
Have in example, any occurrence should be construed as merely illustrative, not as restriction.Therefore, exemplary embodiment
Other examples can have different values.
It should be noted that unless otherwise clearly defined and limited, the term in the present invention shall be understood in a broad sense, for
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The attached drawing of the present invention is all made of very simplified form and uses non-accurate ratio, only to convenient, apparent
Ground aids in illustrating the purpose of the embodiment of the present invention, is not to limit the enforceable qualifications of the present invention.The modification of any structure,
The change of proportionate relationship or the adjustment of size, in the case where not influencing the effect of the invention that can be generated and the purpose that can reach,
It should fall in the range of disclosed technology contents can be covered.And the identical label generation appeared in attached drawing of the present invention
The identical feature of table or component, can be applied in different embodiments.
As shown in Figures 1 to 7, the present invention provides a kind of Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system
System.
The Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system includes location guide 1, im rod in marrow
Connector 2, femur drill guide 3.
Wherein, location guide 1 includes marrow inner segment 11, kneecap section 12 and linkage section 13 successively in marrow；Its marrow inner segment 11 to
It is inserted into femur；Its kneecap section 12 is designed using " recessed " type, and linkage section 13 is provided with jack to connect im rod connector
2；Meanwhile marrow inner segment 11 is located along the same line with linkage section 13.Location guide 1 is designed using integrated molding in the marrow.
Further, the form of " fin " has been used for reference at the both ends of kneecap section 12, is designed using " anti-bending anti-rotation ", in right angle portion
Point corner increases connection area, to improve the ability of anti-deformation of guide rod, increases precision, effective to enhance location guide in marrow
1 precision stability improves the accuracy of femoral prosthesis positioning.
Im rod connector 2 includes short linking arm 21, connection handle 22, long linking arm 23；Wherein, short linking arm 21 and long company
The same end that arm 23 is movably arranged on connection handle 22 respectively is connect, and is mutually parallel and sets between short linking arm 21 and long linking arm 23
It sets, short linking arm 21 and long linking arm 23 can be rotated 360 ° around connection handle 22；Further, in short linking arm 21 and marrow
The structure for the jack being arranged on the linkage section 13 of location guide 1 is adapted, and the jack can be inserted and positioned with connecting in marrow
Guide rod 1；Long linking arm 23 is then connecting femur drill guide 3.
In the present invention, femur drill guide 3 designs (prior art) using the locating slot with special angle,
On be provided with side jack 31 and top drilling 32, lower section drilling 33；The side jack 31 connects to be inserted into im rod
The long linking arm 23 of device 2, the top drilling 32 and lower section drilling 33 drill to realize that condyle of femur positions.Femur drilling is led
The jack direction that about 3 two boring directions of lead device and medial/lateral are connected with im rod connector 2, coronal-plane are in 7 ° of angles
(the angle β of side receptacle axis 34 and central axes 36 is in 7 °), sagittal plane is in 10 ° of angles (side receptacle axis 34 and drilling side
It it is in 10 ° to the angle α of axis 35).
In a preferred embodiment, in marrow location guide 1 be provided with large, medium and small three kinds of models may be selected, with meet not
Corrective surgery with kneecap size uses.
Specifically, the design specification of location guide 1 and im rod connector 2 may refer to shown in Fig. 6 and Fig. 7 in marrow.
Wherein：
A, B is indicated：Location guide marrow inner segment in marrow；
C, D is indicated：Location guide kneecap section in marrow；
E is indicated：Location guide linkage section in marrow；
F is indicated：Location guide " anti-bending anti-rotation " designs in marrow；
M is indicated：The short linking arm of im rod connector；
N is indicated：The long linking arm of im rod connector；
Design parameter：B=26.2cm, E=2.4cm, marrow inner segment shank diameter d=0.5cm；
The overall diameter D=0.7cm of " E " section, internal diameter d=0.4cm；
Small size guide rod：A=27.2cm, C=4.0cm, D=3.0cm；
Medium size guide rod：A=27.6cm, C=4.5cm, D=3.5cm；
Large size guide rod：A=28.0cm, C=5.0cm, D=4.0cm.
Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system provided by the invention, embodiments thereof is such as
Under：
(1) femur drills：45 ° of knee sprung, using 4mm electric drills and 5mm opening cones in front of femur leading edge 1mm, tight
It pastes fossa intercondylaris femoris inner wall, be directed toward the drilling of anterior superior spine direction, location guide 1 in marrow is inserted into, until location guide 1 in marrow
Femoral surface (4) as shown are arrived on " concave " part top.At this point, location guide 1 is parallel to femoral bone cavitas medullaris long axis in Improvement type marrow.
(2) 90 ° of knee sprung use downwards standardized position line of electric knife at condylus medialis femoris center line position, are inserted into femur
The short linking arm 21 of im rod connector 2 is inserted into marrow in the jack of location guide 1, long linking arm 23 by drill guide 3
It is inserted into the side jack 31 of femur drill guide 3, it is central and tight that adjusting femur drill guide 3 is located at condyle in femur
By condylus medialis femoris, confirms that position line is centrally located by the holes 6mm, pierce 4mm and 6mm drill bits, remove drill bit and femur drilling
Guide 3 is completed femur osteotomy prelocalization and is prepared.
The whole operation of direct lever system of the present invention is simple and practicable, and compared with traditional surgical procedure, the marrow is default
Position guide rod 1 can realize positioning in accurately marrow and be designed by its " spill ", solve " kneecap blocks " to operating field
It influences, reduces the length of operative incision, meanwhile, " the anti-bending anti-rotation " of location guide 1, which designs, in marrow can reduce marrow inner guide fixed
" deformation " in bit manipulation improves the precision positioned in marrow.In addition, im rod connector 2 using one is long and the other is short two mutually
Parallel linking arm, and the two linking arms can be respectively along the 360 ° of rotations of same circle core shaft, matching degree is high.
Foregoing description is only the description to present pre-ferred embodiments, is not any restriction to the scope of the invention.Appoint
Any change or modification what those skilled in the art makes according to the technology contents of the disclosure above should all regard
For equivalent effective embodiment, the range of technical solution of the present invention protection is belonged to.
Claims (1)
1. a kind of Improvement type knee joint single condyle displacement technique femur marrow inner guide positioning system, it is characterised in that：Including being positioned in marrow
Guide rod (1), im rod connector (2), femur drill guide (3)；
Location guide (1) includes marrow inner segment (11), kneecap section (12) and linkage section (13) successively in the marrow；The marrow inner segment
(11) being inserted into femur；The kneecap section (12) is designed using " recessed " type, and the form of fin has been used for reference at its both ends, is adopted
It is designed with " anti-bending anti-rotation ", connection area is increased in right angle portions corner；The linkage section (13) be provided with jack to
Connect im rod connector (2)；Meanwhile marrow inner segment (11) is located along the same line with linkage section (13)；
The femur drill guide (3) is provided with using the locating slot design (prior art) with special angle
Side jack and upper aperture, lower square hole；The side jack to be inserted into the long linking arm (23) of im rod connector (2),
The upper aperture and lower square hole drill to realize that condyle of femur positions；
The im rod connector (2) includes short linking arm (21), connection handle (22), long linking arm (23)；The short linking arm
(21) and long linking arm (23) is movably arranged on the same ends of connection handle (22), and short linking arm (21) and long linking arm respectively
(23) arranged in parallel between, short linking arm (21) and long linking arm (23) can surround connection handle (22) and carry out 360 ° of rotations
Turn；Further, the structure for the jack being arranged on short linking arm (21) and the linkage section (13) is adapted, and can be inserted described
Jack is to connect location guide in marrow (1)；Long linking arm (23) and the structure of the side jack are adapted, and institute can be inserted
It states in the jack of side to connect femur drill guide (3)；
Two boring directions and medial/lateral are connected the femur drill guide (3) with im rod connector (2) up and down
Jack direction, coronal-plane are in 7 ° of angles, and sagittal plane is in 10 ° of angles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527441.5A CN108670390A (en) | 2018-05-29 | 2018-05-29 | Improved femoral intramedullary guide rod positioning system for knee joint unicondylar replacement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527441.5A CN108670390A (en) | 2018-05-29 | 2018-05-29 | Improved femoral intramedullary guide rod positioning system for knee joint unicondylar replacement |
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|---|---|
| CN108670390A true CN108670390A (en) | 2018-10-19 |
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| CN201810527441.5A Pending CN108670390A (en) | 2018-05-29 | 2018-05-29 | Improved femoral intramedullary guide rod positioning system for knee joint unicondylar replacement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012470A (en) * | 2019-12-27 | 2020-04-17 | 首都医科大学宣武医院 | Movable platform single-condyle replacement medullary cavity rod insertion 3D positioning guide plate and manufacturing method thereof |
| CN113397651A (en) * | 2021-07-21 | 2021-09-17 | 袁海浪 | Method for positioning longitudinal tibial osteotomy position in unicondylar replacement |
| CN111012470B (en) * | 2019-12-27 | 2024-04-30 | 首都医科大学宣武医院 | Movable platform unicondylar replacement intramedullary rod insertion 3D positioning guide plate and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012470A (en) * | 2019-12-27 | 2020-04-17 | 首都医科大学宣武医院 | Movable platform single-condyle replacement medullary cavity rod insertion 3D positioning guide plate and manufacturing method thereof |
| CN111012470B (en) * | 2019-12-27 | 2024-04-30 | 首都医科大学宣武医院 | Movable platform unicondylar replacement intramedullary rod insertion 3D positioning guide plate and manufacturing method thereof |
| CN113397651A (en) * | 2021-07-21 | 2021-09-17 | 袁海浪 | Method for positioning longitudinal tibial osteotomy position in unicondylar replacement |
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