CN107212912B - Minimally invasive femur distal medullary cavity orientator - Google Patents
Minimally invasive femur distal medullary cavity orientator Download PDFInfo
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- CN107212912B CN107212912B CN201710577655.9A CN201710577655A CN107212912B CN 107212912 B CN107212912 B CN 107212912B CN 201710577655 A CN201710577655 A CN 201710577655A CN 107212912 B CN107212912 B CN 107212912B
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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
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking 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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/067—Measuring instruments not otherwise provided for for measuring angles
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Abstract
The invention provides a minimally invasive distal femoral medullary cavity orientator which comprises a main body, a rotating body, an orientation pull plug, a hollow shaft and a hollow end cap, wherein one end of the rotating body is rotatably connected with the main body, the other end of the rotating body is connected with the orientation pull plug, a tooth-shaped angle indicating disc is arranged at the connecting end of the rotating body and the orientation pull plug, a tooth-shaped needle matched with the tooth-shaped angle indicating disc is arranged on the orientation pull plug, one end of the hollow shaft sequentially penetrates through the main body, the rotating body and the orientation pull plug, the end part of the hollow shaft is fixed through the hollow end cap, the other end of the hollow shaft is rotatably connected with the main body, and the connecting end of the rotating body and the main body is rotatably connected with the hollow shaft. The orientator is used for determining the femoral valgus angle in knee joint replacement on one hand, and is used for positioning the femoral condyle anterior condyle osteotomy and the femoral distal osteotomy on the other hand, has simple structure and convenient operation, and is simultaneously suitable for left and right legs.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a minimally invasive distal femoral medullary cavity orientator.
Background
The knee joint is the largest and most complex joint in the human body. Knee joint replacement is one of the effective ways to treat degenerative arthritis, rheumatoid arthritis, post-traumatic arthritis, flexion deformity and other knee joint diseases, and related researches are also receiving more and more attention.
In artificial knee resurfacing surgery, replacement of the femoral component and the tibial component is mainly involved to replace the damaged knee joint. The anatomical axis of the human femur has an angular difference from the mechanical axis, and distal femoral resection typically follows this angular difference to reconstruct the force line. Therefore, in knee arthroplasty, determining the valgus angle of the femur is one of the important steps throughout the procedure.
At present, a plurality of instruments for measuring the valgus angle of the distal femur have the defects of difficult positioning, inconvenient adjustment, poor universality and the like. Therefore, it is desirable to provide a device for measuring valgus angle that is easy to adjust and has a wide range of applications.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides a minimally invasive distal femoral medullary cavity orientator.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a wicresoft's thighbone distal end pulp cavity director, includes main part, rotator, directional stopper, hollow shaft and hollow end cap, rotator one end with the main part is rotated and is connected, the rotator other end with directional stopper is connected, the rotator with be equipped with profile of tooth angle dial on the link of directional stopper, be equipped with on the directional stopper with the profile of tooth needle that profile of tooth angle dial matches, hollow shaft one end is passed in proper order main part, rotator and directional stopper, the tip is fixed through hollow end cap, just the hollow shaft other end with the main part rotates and is connected, the rotator with the link of main part with the hollow shaft rotates and connects.
The tooth-shaped angle indicating disc and the tooth-shaped needle are matched to adjust and determine the eversion angle of the distal end of the femur in knee joint replacement, the adjusting range of the eversion angle is 2-9 degrees, the position of each tooth of the tooth-shaped angle indicating disc corresponds to an angle, the adjustment is very convenient, and only the directional pull plug needs to be pulled to insert the tooth-shaped needle into the corresponding position of the tooth-shaped angle indicating disc with the corresponding angle. And the direction finder has no directionality and is suitable for the replacement of the knee joints of the left leg and the right leg.
Further, the main part includes the bottom plate and follows the two ear seats that the bottom plate axis symmetry set up, rotator one end is inserted and is established between the two ear seats, and both sides through the round pin axle with the top of two ear seats rotates to be connected, the rotator with the rotation junction at two ear seat tops forms first turning point. The base plate is pasted on the distal end of the femur, and the position and the angle of the base plate and the anterior condyle surface of the femoral condyle are adjusted to realize the osteotomy positioning of the distal end of the femur so as to determine the osteotomy amount of the anterior condyle of the femoral condyle; the two ear seats are arranged on the bottom plate in parallel, the rotating body and the hollow shaft penetrate through the two ear seats, and the intramedullary directional rod penetrates through the hollow shaft to realize the determination of the eversion angle by adjusting the position of the directional pull plug.
Furthermore, the hollow shaft with the position that the main part rotates to be connected is located the bottom of two ear seats, and rotates through the round pin axle and connect, the hollow shaft with the rotation junction of two ear seat bottoms forms the second turning point.
Furthermore, the part of the rotating body inserted between the two lug seats is rotationally connected with the hollow shaft through a pin shaft, a third rotating point is formed at the rotational connection position of the rotating body and the hollow shaft, and the third rotating point is located between the first rotating point and the second rotating point.
The rotating body, the main body and the hollow shaft are connected in pairs through a first rotating point, a second rotating point and a third rotating point respectively, the intramedullary orientation rod penetrates through the hollow shaft, the relative position of the intramedullary orientation rod is fixed, and when the orientation pull plug is adjusted, the positions and the angles of the rotating body and the main body are changed, so that the adjustment of the eversion angle is realized.
In order to reduce auxiliary instruments used in the operation, the whole structure of the base plate is designed into an isosceles trapezoid, the upper bottom edge and the lower bottom edge of the isosceles trapezoid are both arc-shaped protruding outwards, and the included angle between the two waist edges of the isosceles trapezoid and the axis of the isosceles trapezoid is 3 degrees. When the positioner is used, the side of the waist of the main body bottom plate is taken as a reference line and is parallel to the posterior condylar connecting line of the femoral condyles, and because the side of the bottom plate and the midline form a certain included angle, the position of the positioner is in a positive position after the femoral posterior condylar connecting line is parallel, and an auxiliary positioning instrument is not needed to be adopted to prepare for the next operation. The orientator can not only realize the orientation of the eversion angle of the distal femur, but also realize the self-positioning of the orientator and the positioning of the resection of the anterior condyle of the femoral condyle and the resection of the distal femur, and has multiple functions.
Further, in order to realize the connection with the main body and the position adjustment of the directional pull plug, the rotating body comprises a U-shaped gear disc part and a rectangular insertion part which are integrally connected, a plurality of teeth are arranged on the top of two side walls of the U-shaped gear disc part to form the tooth-shaped angle indicating disc, and the rectangular insertion part is connected with the main body. Specifically, the rectangular insertion portion is inserted between the two ear seats, and the first rotation point and the third rotation point are both located on the rectangular insertion portion.
Furthermore, a fool-proof structure is arranged at one end, away from the U-shaped toothed disc part, of the rectangular insertion part. The fool-proof structure is formed on the end face and the side face of the rectangular insertion part, and one corner of the rectangular insertion part close to the bottom of the ear seat is cut into an arc surface to prevent the direction from being reversed during assembly.
Further, still including setting up osteotomy ware jack on the ear seat, the osteotomy ware jack is two sets of edges the axis symmetry of main part sets up.
Furthermore, the directional pull plug is a hollow cylinder, a limiting flange is arranged at the top of the cylinder, notches are symmetrically arranged on the side wall of the cylinder along the radial direction, and the tooth-shaped needle is located at the bottom of the notch. The outer diameter of the cylinder is larger than the distance between two side walls of the U-shaped gear disc part, the outer dimension of the cylinder is reduced by arranging the gap on the side wall of the cylinder, so that the cylinder can be inserted between the two side walls of the U-shaped gear disc part and can freely swing between the two side walls of the U-shaped gear disc part, and the tooth-shaped needle on the bottom of the gap is meshed with teeth of the U-shaped gear disc part.
The hollow shaft is positioned at one end in the directional draw plug, and the hollow end cap is sleeved on the hollow shaft at the upper end of the spring. The pressing force generated on the hollow end cap is transferred to the directional draw plug through the spring, so that the directional draw plug is fixed.
The invention has the beneficial effects that: the minimally invasive distal femoral medullary cavity orientator provided by the invention is used for determining the distal femoral valgus angle in knee joint replacement surgery on one hand, and is used for positioning the anterior condylar osteotomy of the femoral condyle and the distal femoral osteotomy on the other hand, has a simple structure, is convenient to operate, and is suitable for left and right legs simultaneously.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic illustration of an explosive structure in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the assembly structure of the preferred embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view of the structure of FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 2;
fig. 5 is a schematic view of the structure in the direction B in fig. 2.
In the figure: 1. hollow shaft, 2, main body, 3, rotating body, 4, directional draw plug, 5, hollow end cap, 6, spring, 7, shaft pin, 8, main body pin, 9, rotating body pin, 10, tooth-shaped angle indicating disc, 11, tooth-shaped needle, 12, notch, 13, bottom plate, 14, ear seat, 15, first rotating point, 16, second rotating point, 17, third rotating point, 18, U-shaped tooth disc part, 19, rectangular insertion part, 20, arc-shaped surface, 21, osteotome insertion hole, 22, cylinder, 23, limit flange, 24, pin, 25, steel ball, 26, small spring, 27, hole one, 28, hole two, 29, hole three, 30, hole four, 31, kong Wu, 32, hole six.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1 to 5, the minimally invasive distal femoral medullary cavity orientator of the present invention comprises a main body 2, a rotating body 3, a directional plug 4, a hollow shaft 1, a hollow end cap 5 and a spring 6, wherein one end of the rotating body 3 is rotatably connected to the main body 2, the other end of the rotating body 3 is connected to the directional plug 4, a tooth-shaped angle indicating disc 10 is disposed at a connecting end of the rotating body 3 and the directional plug 4, a tooth-shaped needle 11 matched with the tooth-shaped angle indicating disc 10 is disposed on the directional plug 4, one end of the hollow shaft 1 sequentially passes through the main body 2, the rotating body 3 and the directional plug 4, the spring 6 is sleeved at one end of the hollow shaft 1 located in the directional plug 4, and the hollow end cap 5 is sleeved on the hollow shaft 1 at the upper end of the spring 6. One end of the spring 6 is abutted against the hollow end cap 5, the other end of the spring is abutted against the inner hole of the directional draw plug 4, and the pressing force generated on the hollow end cap 5 is transmitted to the directional draw plug 4 through the spring 6, so that the directional draw plug 4 is fixed. The other end of the hollow shaft 1 is rotatably connected with the main body 2, and the connecting end of the rotating body 3 and the main body 2 is rotatably connected with the hollow shaft 1.
The main part 2 includes bottom plate 13 and follows the both ears seat 14 that 13 axisymmetrics of bottom plate set up, 3 one end of rotator is inserted and is established between the both ears seat 14, and both sides through the round pin axle with the top of both ears seat 14 is rotated and is connected, rotator 3 with the rotation junction at the 14 tops of both ears seat forms first turning point 15.
The hollow shaft 1 and the main body 2 are rotatably connected at positions located at the bottoms of the two lug seats 14 and rotatably connected through a pin shaft, and a second rotating point 16 is formed at the rotating connection position of the hollow shaft 1 and the bottoms of the two lug seats 14.
The part of the rotating body 3 inserted between the two ear seats 14 is rotationally connected with the hollow shaft 1 through a pin shaft, a third rotating point 17 is formed at the rotational connection position of the rotating body 3 and the hollow shaft 1, and the third rotating point 17 is located between the first rotating point 15 and the second rotating point 16.
The rotating body 3 comprises a U-shaped tray part 18 and a rectangular insertion part 19 which are integrally connected, a plurality of teeth are arranged on the tops of two side walls of the U-shaped tray part 18 to form the tooth-shaped angle indicating plate 10, and the rectangular insertion part 19 is connected with the main body 2. Specifically, a rectangular insertion portion 19 is inserted between the two ear seats 14, and the first rotation point 15 and the third rotation point 17 are both located on the rectangular insertion portion 19.
And a fool-proof structure is arranged at one end of the rectangular insertion part 19 far away from the U-shaped tray part 18. The fool-proof structure is an arc surface 20 formed on the end surface and the side surface of the rectangular insertion part 19, and one corner of the rectangular insertion part 19 close to the bottom of the ear seat 14 is cut into an arc surface to prevent the direction from being reversed during assembly.
In this embodiment, the joint of the U-shaped tray part 18 and the rectangular insertion part 19 is an arc structure matched with the top of the ear seat 14, so as to facilitate relative rotation, two side surfaces of the rectangular insertion part 19 near one end of the U-shaped tray part 18 are symmetrically provided with a first hole 27, two side surfaces of the rectangular insertion part 19 near one end of the arc surface 20 are symmetrically provided with a second hole 28, the top of the ear seat 14 is symmetrically provided with a third hole 29 rotatably connected with the first hole 27 by using a rotating body pin 9, the bottom of the ear seat 14 is symmetrically provided with a fourth hole 30, and the tail end of the hollow shaft 1 is sequentially provided with a fifth hole 31 rotatably connected with the second hole 28 by using a main body pin 8 and a sixth hole 32 rotatably connected with the fourth hole 30 by using a shaft pin 7. The connection location of hole one 27 and hole three 29 is the first rotation point 15, the connection location of hole two 28 and hole five 31 is the third rotation point 17, and the connection location of hole four 30 and hole six 32 is the second rotation point 16.
In order to reduce the number of auxiliary instruments used in an operation, the whole structure of the base plate 13 is designed to be an isosceles trapezoid, the upper bottom edge and the lower bottom edge of the isosceles trapezoid are both arc-shaped protruding outwards, and an included angle alpha between the two waist edges of the isosceles trapezoid and the axis of the isosceles trapezoid is 3 degrees. When the orienting device is used, the side of the waist of the bottom plate 13 of the main body 2 is taken as a reference line and is parallel to the femoral posterior condyle connecting line, and the side of the bottom plate 13 and the midline form a certain included angle, so that the position of the orienting device is in the positive position after the femoral posterior condyle connecting line is parallel.
The directional pull plug 4 is a hollow cylinder 22, a limiting flange 23 is arranged at the top of the cylinder 22, notches 12 are symmetrically arranged on the side wall of the cylinder 22 along the radial direction, and the serrated needle 11 is located at the bottom of the notches 12.
The bone cutter is characterized by further comprising bone cutter insertion holes 21 arranged on the ear seat 14, wherein the bone cutter insertion holes 21 are arranged in two groups symmetrically along the axis of the main body 2.
When the device is installed, the steel ball 25 is firstly installed along the hole on the main body 2, then the small spring 26 is installed in the hole, and finally the pin 24 is installed, so that the small spring 26 is positioned between the pin 24 and the steel ball 25, and the device plays a role of fixing the anterior femoral condyle osteotomy device and the distal femoral osteotomy device.
The working principle is as follows:
inserting an intramedullary orienting rod into the hollow shaft 1 of the orienter;
adjusting the adjusting rotator 3, determining the left knee and the right knee, and adjusting the directional pull plug 4 to determine the angle of the valgus angle;
slowly inserting the assembly into the femoral bone marrow cavity to a designated depth, tightly attaching the end surface of the bottom plate 13 of the main body 2 to the distal end of the femoral condyle, adjusting the position of the orientator and fixing;
the femoral condylar anterior osteotomes are inserted into two osteotome sockets 21 on the body 2 for positioning.
It should be noted that the mounting direction should be noted before the rotating body 3 and the main body 2 are assembled; the rotary body 3 and the hollow shaft 1 must be rotatable before the main body 2 is mounted; the directional pull plug 4 can be pulled out when the hollow end cap 5 is not installed, and the position of the tooth-shaped needle 11 and the teeth is adjusted, namely the eversion angle is adjusted.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is intended that the appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A minimally invasive distal femoral medullary cavity orientator is characterized in that: the device comprises a main body (2), a rotating body (3), a directional pull plug (4), a hollow shaft (1) and a hollow end cap (5), wherein one end of the rotating body (3) is rotatably connected with the main body (2), the other end of the rotating body (3) is connected with the directional pull plug (4), a tooth-shaped angle indicating disc (10) is arranged at the connecting end of the rotating body (3) and the directional pull plug (4), a tooth-shaped needle (11) matched with the tooth-shaped angle indicating disc (10) is arranged on the directional pull plug (4), one end of the hollow shaft (1) sequentially penetrates through the main body (2), the rotating body (3) and the directional pull plug (4), the end part of the hollow shaft is fixed through the hollow end cap (5), the other end of the hollow shaft (1) is rotatably connected with the main body (2), and the connecting end of the rotating body (3) and the main body (2) is rotatably connected with the hollow shaft (1);
the main body (2) comprises a bottom plate (13) and two lug seats (14) symmetrically arranged along the axis of the bottom plate (13), one end of the rotating body (3) is inserted between the two lug seats (14), two sides of the rotating body are rotatably connected with the tops of the two lug seats (14) through pin shafts, and a first rotating point (15) is formed at the rotating connection position of the rotating body (3) and the tops of the two lug seats (14);
the position where the hollow shaft (1) is rotatably connected with the main body (2) is located at the bottom of the two lug seats (14) and is rotatably connected with the two lug seats through a pin shaft, and a second rotating point (16) is formed at the rotating connection position of the hollow shaft (1) and the bottom of the two lug seats (14);
the part of the rotating body (3) inserted between the two lug seats (14) is rotationally connected with the hollow shaft (1) through a pin shaft, a third rotating point (17) is formed at the rotational connection part of the rotating body (3) and the hollow shaft (1), and the third rotating point (17) is positioned between the first rotating point (15) and the second rotating point (16);
the directional pull plug (4) is a hollow cylinder (22), a limiting flange (23) is arranged at the top of the cylinder (22), notches (12) are symmetrically formed in the side wall of the cylinder (22) along the radial direction, and the toothed needle (11) is located at the bottom of the notches (12);
still include spring (6), spring (6) cover is established hollow shaft (1) is located one end in directional stopper (4), the cover is established on hollow shaft (1) of spring (6) upper end hollow end cap (5).
2. The minimally invasive femoral distal intramedullary canal orienter of claim 1, wherein: the integral structure of the base plate (13) is an isosceles trapezoid, the upper base edge and the lower base edge of the isosceles trapezoid are arc-shaped protruding outwards, and the included angle between the two waist edges of the isosceles trapezoid and the axis of the isosceles trapezoid is 3 degrees.
3. The minimally invasive femoral distal intramedullary canal orienter of any one of claims 1-2, wherein: the rotating body (3) comprises a U-shaped gear disc portion (18) and a rectangular inserting portion (19) which are integrally connected, a plurality of teeth are arranged on the tops of two side walls of the U-shaped gear disc portion (18) to form the tooth-shaped angle indicating disc (10), and the rectangular inserting portion (19) is connected with the main body (2).
4. The minimally invasive femoral distal intramedullary canal orienter of claim 3, wherein: and a foolproof structure is arranged at one end of the rectangular insertion part (19) far away from the U-shaped tray part (18).
5. The minimally invasive femoral distal intramedullary canal orienter of claim 1, wherein: still including setting up osteotomy ware jack (21) on ear seat (14), osteotomy ware jack (21) are two sets of edges the axis symmetry of main part (2) sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710577655.9A CN107212912B (en) | 2017-07-15 | 2017-07-15 | Minimally invasive femur distal medullary cavity orientator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710577655.9A CN107212912B (en) | 2017-07-15 | 2017-07-15 | Minimally invasive femur distal medullary cavity orientator |
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| CN107212912A CN107212912A (en) | 2017-09-29 |
| CN107212912B true CN107212912B (en) | 2023-04-14 |
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| CN201710577655.9A Active CN107212912B (en) | 2017-07-15 | 2017-07-15 | Minimally invasive femur distal medullary cavity orientator |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420501A (en) * | 2018-04-09 | 2018-08-21 | 李志慧 | A kind of detachable bone surgery apparatus |
| CN110477995B (en) * | 2019-08-08 | 2024-06-11 | 宽岳医疗器材（苏州）有限公司 | Femur osteotomy distal end alignment positioning device |
| CN111297436A (en) * | 2020-03-31 | 2020-06-19 | 北京市春立正达医疗器械股份有限公司 | Knee joint intramedullary positioner |
| 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 |
| CN111956340A (en) * | 2020-08-24 | 2020-11-20 | 经纬医疗器材制造（深圳）有限公司 | Thighbone positioning device |
| CN114748127B (en) * | 2022-06-14 | 2022-10-14 | 北京爱康宜诚医疗器材有限公司 | Femoral neck osteotomy positioning device |
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| CN101801286A (en) * | 2007-09-21 | 2010-08-11 | 德普伊国际有限公司 | Intramedullary rod instrument |
| WO2014138384A1 (en) * | 2013-03-07 | 2014-09-12 | Zimmer, Inc. | Intramedullary resection guide and methods |
| CN104095664A (en) * | 2013-04-12 | 2014-10-15 | 德普伊（爱尔兰）公司 | Thighbone far end clamp component and thighbone far end cutting instrument with same |
| CN104546088A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Customized compound bone cutter for femoral condyle |
| JP2017093974A (en) * | 2015-11-27 | 2017-06-01 | 京セラメディカル株式会社 | Surgical instrument for artificial knee joint replacement surgery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801286A (en) * | 2007-09-21 | 2010-08-11 | 德普伊国际有限公司 | Intramedullary rod instrument |
| WO2014138384A1 (en) * | 2013-03-07 | 2014-09-12 | Zimmer, Inc. | Intramedullary resection guide and methods |
| CN104095664A (en) * | 2013-04-12 | 2014-10-15 | 德普伊（爱尔兰）公司 | Thighbone far end clamp component and thighbone far end cutting instrument with same |
| CN104546088A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Customized compound bone cutter for femoral condyle |
| JP2017093974A (en) * | 2015-11-27 | 2017-06-01 | 京セラメディカル株式会社 | Surgical instrument for artificial knee joint replacement surgery |
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| CN107212912A (en) | 2017-09-29 |
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