CN209437320U - Knee osteotomy assists guide plate - Google Patents
Knee osteotomy assists guide plate Download PDFInfo
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- CN209437320U CN209437320U CN201821588529.XU CN201821588529U CN209437320U CN 209437320 U CN209437320 U CN 209437320U CN 201821588529 U CN201821588529 U CN 201821588529U CN 209437320 U CN209437320 U CN 209437320U
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Abstract
Knee osteotomy assists guide plate.It is related to medical assistance instrument field, and in particular to knee osteotomy assists guide plate.Provide a kind of knee osteotomy auxiliary guide plate easy to use, promoting surgical effect.Including guide plate top and guide plate lower part and at least one alignment pin；There is mating surface, the mating surface is formed by two planes between each other in obtuse angle between guide plate top and guide plate lower part；In the alignment pin after angle contraposition pin hole one and angle contraposition pin hole two, fixation Kel's needle is inserted into the fixation Kel's needle guide pin hole.The utility model structure is simple, easy to use, provides exquisite, accurate back work for knee osteotomy operation, guarantees that operation reaches optimum efficiency.
Description
Technical field
The utility model relates to medical assistance instrument fields, and in particular to knee osteotomy assists guide plate.
Background technique
Normal knee joint is as shown in figure 8, with social senilization's progress faster, since the improper stress of knee joint causes phase
The disease answered is in rising trend, such as: knee space is narrow, meniscus acute and chronic injury, contact surface force above and below knee joint
Misplace and cause pain, tuberosity of tibia or femoral bone tuberosity face it is flat fracture and shift and knee joint peripheral ligament tendon acute and chronic labor
Damage, knee joint turns up or varus is so that there is O-shaped leg or X-type leg (as shown in figs. 9-10, being wear surface at A), and cause chronic
Pain, patient cannot walk when disease is serious, bring inconvenience to life and work.
Currently, occurring the patient of interior valgus deformity for knee joint, mostly uses bone-culting operation relatively to adjust the joint line of force, reach
To the purpose of correction.In surgical procedure, need for be flared at osteotomy end fixed (such as figure after correction angle when using open osteotomy
Shown in 11-12), opening angle can only lean on the experience progress operation consent of medical worker to pass through x-ray measurement at present, it is understood that there may be osteotomy
The inaccurate problem of angle, so that expected optimum curative effect cannot be reached.
Utility model content
The utility model is in view of the above problems, to provide a kind of knee osteotomy easy to use, promoting surgical effect auxiliary
Assistant director of a film or play's plate.
The technical solution of the utility model is:
Knee osteotomy assists guide plate, including guide plate top and guide plate lower part and at least one alignment pin；Guide plate top
There is mating surface between guide plate lower part, the mating surface is formed by two planes between each other in obtuse angle；The mating surface
Between there are gaps, set several connecting columns at the edge on the guide plate top and guide plate lower part mating surface so that guide plate top and
Guide plate lower part forms a fixed connection relationship between each other；
The guide plate top include camber upper joint cladding plate, positioned at upper joint cladding plate side inclined board and be located at
The upper flat plate of upper joint cladding plate bottom, the inclined board and upper flat plate form the obtuse angle；The upper joint cladding plate
Inner wall is adapted to knee joint outer wall, and the outer wall of the upper joint cladding plate is equipped at least two fixation Kel's needles disposed in parallel
Correction unit fixedly connected hole in guide pin hole and at least two, the upper flat plate are equipped with angle and align pin hole one；
The guide plate lower part includes declined board and lower plate, and the lower plate is located at the wheel of the side below upper joint cladding plate
Exterior feature is adapted to joint outer wall profile, and the declined board and lower plate form the obtuse angle；The bottom surface of the lower plate is equipped with extremely
Few two lower correction unit fixedly connected holes, angle align pin hole two, and the declined board tilts, the angle pair parallel with inclined board
Position pin hole two is located at the lower section of angle contraposition pin hole one；
In use, cutting several connecting columns, rotate the upper correction unit by the center of circle of the upper end of the inclined board,
Until the alignment pin aligns pin hole two through angle contraposition pin hole one and angle.
The angle contraposition pin hole one is connect by dowel one with upper joint cladding plate, and the angle aligns pin hole two-way
Dowel two is crossed to connect with the bottom surface of lower plate.
In the alignment pin after angle contraposition pin hole one and angle contraposition pin hole two, toward the fixation Kel's needle
Fixation Kel's needle is inserted into guide pin hole.
Angle contraposition pin hole three is additionally provided on the upper flat plate, the lower planar bottom surface is additionally provided with angle contraposition pin hole four,
The angle contraposition pin hole three favours the angle contraposition pin hole one, and the angle contraposition pin hole four favours the angle pair
Position pin hole two, the angle contraposition pin hole three favour the angle and angle contraposition pin hole four of the angle contraposition pin hole one
The angle for favouring angle contraposition pin hole two is identical, and when original state, the angle contraposition pin hole four is located at the angle
It aligns the lower section of pin hole three and the two is not coaxial.
The beneficial effects of the utility model are: the utility model is before surgery according to CT scan three-dimensional imaging as a result, essence
Osteotomy angle needed for really planning, the osteotomy guide plate of 3D printing design；The utility model is fixed on osteotomy end before osteotomy, indulges and cuts
Bone line, transversal bone line provide fixation locus for osteotomy, and preoperative precise measurement facilitates osteotomy work to carry out, will not during osteotomy
It accidentally cuts, does not damage surrounding tissue；By the knochenbruch that the insertion adjustment of angle alignment pin is cut and the preset angle that thigh bone extremely calculates after osteotomy
Degree, does not need medical worker and manually adjusts, the angle opened after osteotomy yet precise measurement and default, avoids that adjustment is not in place to be led
The situation of surgical effect difference is caused to occur；It is inserted into fixation Kel's needle after angular adjustment is good to fix, Kirschner wire fixation adjusts angle surely
Osteotomy and shin bone, remove supplemental appliances, fixed upper steel plate, the elongated Kirschner wire being fixed temporarily will not influence steel plate
Fixation work.The utility model structure is simple, easy to use, provides exquisite, accurate backman for knee osteotomy operation
Make, guarantees that operation reaches optimum efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model,
Fig. 2 is the top view of Fig. 1,
Fig. 3 is the left view of Fig. 1,
Fig. 4 is the scheme of installation of the utility model,
Fig. 5 is the status diagram of Fig. 4 insertion alignment pin,
Fig. 6 is the status diagram of Fig. 5 insertion fixation Kel's needle,
Fig. 7 is the bone status diagram that Fig. 6 removes the utility model,
Fig. 8 is kneed structural schematic diagram under normal condition,
Fig. 9 is knee joint tibial abrasion schematic diagram,
Figure 10 is the shin bone repairing schematic diagram of knee joint abrasion,
Figure 11 is the tibial surgical osteotomy schematic diagram of knee joint abrasion,
Figure 12 be knee joint abrasion tibial surgical osteotomy after be lifted schematic diagram；
1 is alignment pin in figure, and 2 be connecting column, and 3 be gap, and 41 be upper joint cladding plate, and 411 be fixation Kel's needle guiding
Pin hole, 412 be guide plate top fixedly connected hole, and 42 be inclined board, and 43 be upper flat plate, and 431 be angle contraposition pin hole one, and 4311 are
Dowel one, 51 be declined board, and 52 be lower plate, and 521 be angle contraposition pin hole two, and 5211 be dowel two, and 522 be under guide plate
Portion's fixedly connected hole, 6 be longitudinal osteotomy line, and 7 be lateral osteotomy line, and 8 be fixation Kel's needle, and A is wear surface.
Specific embodiment
The utility model is illustrated with reference to the accompanying drawing.
It should be noted that word "up" and "down" used in the following description refers to the direction in attached drawing 1, word
" bottom surface " and " top surface " refers respectively to direction towards or away from geometric center of specific component.
The utility model is as shown in Figure 1-3, a kind of knee joint assists appliance, including upper correction unit and lower correction unit, with
And at least one alignment pin 1；There is mating surface, the mating surface is between each other by two between guide plate top and guide plate lower part
The plane at obtuse angle is formed；There are gap 3(to facilitate cutting surgical knife entrance between the mating surface), on the guide plate top and lead
The edge of plate lower part mating surface sets several connecting columns 2, the pass so that guide plate top and guide plate lower part form a fixed connection between each other
System；
The guide plate top includes camber upper joint cladding plate 41, the inclined board 42 positioned at 41 side of upper joint cladding plate
With the upper flat plate 43 for being located at 41 bottom of upper joint cladding plate, the inclined board 42 and upper flat plate 43 form the obtuse angle；It is described
The inner wall of upper joint cladding plate 41 is adapted to knee joint outer wall, and it is flat that the outer wall of the upper joint cladding plate 41 is equipped at least two
Correction unit fixedly connected hole 412(is solid from guide plate top in the fixation Kel's needle guide pin hole 411 and at least two of row setting
Determine connecting hole 412 to be inserted into fixed pin and be inserted into bone, guide plate top be fixed on bone), the upper flat plate 43 is equipped with
Angle aligns pin hole 1；
The guide plate lower part includes declined board 51 and lower plate 52, and the lower plate 52 is located at 41 lower section of upper joint cladding plate
Outline be adapted to joint outer wall profile, the declined board 51 and lower plate 52 form the obtuse angle；The lower plate
52 bottom surface is equipped at least two guide plate lower part fixedly connected hole 522(and is inserted into fixed pin simultaneously from guide plate lower part fixedly connected hole 522
Be inserted into bone, guide plate lower part be fixed on bone), angle contraposition pin hole 2 521, the declined board 51 inclination and inclined board
42 parallel (inclined board 42 and declined boards 51 are mainly used for guide plate top and the initial connection of guide plate lower part is fixed), the angle pair
The lower section that position pin hole 2 521 is located at angle contraposition pin hole 1 is not coaxial, but most of coincidence, so that alignment pin 1 can
Inject the two in and force it is no longer parallel between inclined board 42 and declined board 51, upper flat plate 43 and lower plate 52, to reach pass
The angle of continence adjustment；
In use, cutting several connecting columns 2, rotate the upper correction by the center of circle of the upper end of the inclined board 42
Portion, until the alignment pin 1 aligns pin hole 2 521 through angle contraposition pin hole 1 and angle.
When original state, inclined board 42 is parallel to declined board 51 and constitutes longitudinal osteotomy line 6, and upper flat plate 43 is parallel to lower plate
52 constitute lateral osteotomy line 7, pass through between inclined board 42 and declined board 51 and between upper flat plate 43 and lower plate 52 several
Connecting column 2 connects, and the angle contraposition pin hole 2 521 and angle contraposition pin hole 1 be not coaxial.
In use, alignment pin 1 is inserted into angle contraposition pin hole 1 and angle contraposition pin hole 2 521, so that inclined board 42
It is not parallel between declined board 51, upper flat plate 43 and lower plate 52.(this not parallel angle needs to be ground according to patient's knee joint
Situation is damaged, doctor formulates lifting angle).
The angle contraposition pin hole 1 is connect by dowel 1 with upper joint cladding plate 41, the angle pair
Position pin hole 2 521 is connect by dowel 2 5211 with the bottom surface of lower plate 52.Dowel 1, dowel 2 5211, master
It plays a supportive role, prevents the pin hole stress when being inserted into alignment pin 1 in angle contraposition pin hole from tilting, lead to align angle up to not
To predetermined angular, cause knee joint rectifying effect poor.
It is past described solid in the alignment pin 1 after angle contraposition pin hole 1 and angle contraposition pin hole 2 521
Determine to be inserted into fixation Kel's needle 8 in Kirschner wire guide pin hole 411.(fixation Kel's needle 8 is inserted into from fixation Kel's needle guide pin hole 411
Knochenbruch and thigh bone, so that fixation Kel's needle 8 is connected and fixed knochenbruch and thigh bone.)
Angle contraposition pin hole three is additionally provided on the upper flat plate 43, lower 52 bottom surface of plate is additionally provided with angle contraposition pin hole
Four, the angle contraposition pin hole three favours the angle contraposition pin hole 1, and the angle contraposition pin hole four favours described
Angle aligns pin hole 2 521, angle contraposition pin hole three favour the angle contraposition pin hole 1 angle and the angle
The angle that degree contraposition pin hole four favours angle contraposition pin hole 2 521 is identical, and when original state, the angle aligns pin hole
Four be located at the angle contraposition pin hole three lower section and the two it is not coaxial.But it is most of to be overlapped, after osteotomy, by another alignment pin
It is inserted into angle contraposition pin hole four from angle contraposition pin hole three, thus there is the alignment pin 1 of two relative tilts to prop up correction
Portion, so that upper correction unit and lower correction unit are adjusted to the angle to be lifted, and because of the active force of two alignment pins 1, later
It is inserted into the process of reinforcing bar, guide plate top and guide plate lower part will not ensure that the stability of angular adjustment with respect to play.Attached drawing again
In angled contraposition pin hole 1 and angle contraposition pin hole 2 521 on the basis of, those skilled in the art see above-mentioned text
Word is it will be appreciated that increase effect and its situation of another set of angle contraposition pin hole three and angle contraposition pin hole four, therefore do not have
It is shown in figure.
A kind of application method of knee osteotomy auxiliary guide plate, includes the following steps:
The knee osteotomy assists guide plate, before surgery according to the three-dimensional imaging of patient's knee joint CT scanning as a result, essence
In true calculating operation after the angle of required correction as obtained by 3D printing, each component has certain individual difference, feature tool
There is personalized and precision.
1) upper joint cladding plate, declined board and the face adapted in joint, are fitted in osteotomy end, from guide plate top fixed thread
It is inserted into fixed pin in hole, guide plate top is fixed on osteotomy end, being then inserted into fixed pin from the fixing screwed hole of guide plate lower part will lead
Plate lower part is fixed on osteotomy end；
2), according to preoperative planning and designing, transversely osteotomy line and longitudinal osteotomy line cut off proximal tibia bone group respectively
It knits；
3) Tibial osteotomy end, is strutted, an alignment pin is sequentially inserted into angle contraposition pin hole one and angle aligns pin hole two
In, so that the osteotomy being cut open separates with shin bone and formed preset angle, another alignment pin is sequentially inserted into angle alignment pin
In hole three and angle contraposition pin hole four, the angle of preoperative planning and designing is completed；Two alignment pins after insertion are not parallel, with from more
Direction force, so that being formed, preset angle is more stable, and subsequent work force will not be answered, which to cause to deform i.e. angle change, to be influenced
Rectifying effect；
4) fixation Kel's needle of fixed osteotomy, is inserted into from fixation Kel's needle guide pin hole, the fixation Kel's connect osteotomy
And shin bone；
5) guide plate top and guide plate lower part, are removed, fixation Kel's needle is left, osteotomy is completed and corrects angle, Interal fixation is cut
Epiphysis.
Claims (4)
1. knee osteotomy assists guide plate, which is characterized in that aligned including guide plate top and guide plate lower part and at least one
Pin；There is mating surface, the mating surface is formed by two planes between each other in obtuse angle between guide plate top and guide plate lower part；
There are gaps between the mating surface, set several connecting columns at the edge on the guide plate top and guide plate lower part mating surface, so that
Guide plate top and guide plate lower part form a fixed connection relationship between each other；
The guide plate top includes camber upper joint cladding plate, positioned at the inclined board of upper joint cladding plate side and positioned at upper pass
The upper flat plate of cladding plate bottom is saved, the inclined board and upper flat plate form the obtuse angle；The inner wall of the upper joint cladding plate
It is adapted to knee joint outer wall, the outer wall of the upper joint cladding plate is equipped at least two fixation Kel's needle guiding disposed in parallel
Correction unit fixedly connected hole on pin hole and at least two, the upper flat plate are equipped with angle and align pin hole one；
The guide plate lower part includes declined board and lower plate, the lower plate be located at outline below upper joint cladding plate with
Joint outer wall profile adaptation, the declined board and lower plate form the obtuse angle；The bottom surface of the lower plate is equipped at least two
A lower correction unit fixedly connected hole, angle align pin hole two, and the declined board tilts, the angle alignment pin parallel with inclined board
Hole two is located at the lower section of angle contraposition pin hole one；
In use, cutting several connecting columns, rotate the upper correction unit by the center of circle of the upper end of the inclined board, until
The alignment pin aligns pin hole two through angle contraposition pin hole one and angle.
2. knee osteotomy according to claim 1 assists guide plate, which is characterized in that the angle contraposition pin hole one passes through
Dowel one is connect with upper joint cladding plate, and the angle contraposition pin hole two-way is crossed dowel two and connect with the bottom surface of lower plate.
3. knee osteotomy according to claim 1 assists guide plate, which is characterized in that run through the angle in the alignment pin
After degree contraposition pin hole one and angle contraposition pin hole two, fixation Kel's needle is inserted into the fixation Kel's needle guide pin hole.
4. knee osteotomy according to claim 1 assists guide plate, which is characterized in that be additionally provided with angle on the upper flat plate
Pin hole three is aligned, the lower planar bottom surface is additionally provided with angle contraposition pin hole four, and the angle contraposition pin hole three favours the angle
Degree contraposition pin hole one, the angle contraposition pin hole four favour the angle contraposition pin hole two, and the angle contraposition pin hole three inclines
The angle of the angle contraposition pin hole two is tiltedly favoured in the angle of angle contraposition pin hole one and angle contraposition pin hole four
Spend it is identical, when original state, the angle contraposition pin hole four be located at the angle align pin hole three lower section and the two it is not coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588529.XU CN209437320U (en) | 2018-09-27 | 2018-09-27 | Knee osteotomy assists guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588529.XU CN209437320U (en) | 2018-09-27 | 2018-09-27 | Knee osteotomy assists guide plate |
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| CN209437320U true CN209437320U (en) | 2019-09-27 |
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| CN201821588529.XU Active CN209437320U (en) | 2018-09-27 | 2018-09-27 | Knee osteotomy assists guide plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044480A (en) * | 2018-09-27 | 2018-12-21 | 扬州市妇幼保健院（扬州市红十字医院、扬州市妇幼保健计划生育服务中心） | A kind of knee osteotomy auxiliary guide plate and its application method |
-
2018
- 2018-09-27 CN CN201821588529.XU patent/CN209437320U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044480A (en) * | 2018-09-27 | 2018-12-21 | 扬州市妇幼保健院（扬州市红十字医院、扬州市妇幼保健计划生育服务中心） | A kind of knee osteotomy auxiliary guide plate and its application method |
| CN109044480B (en) * | 2018-09-27 | 2024-04-05 | 扬州市妇幼保健院（扬州市红十字医院、扬州市妇幼保健计划生育服务中心） | Auxiliary guide plate for knee joint osteotomy |
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