CN208741127U - Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex - Google Patents
Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex Download PDFInfo
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- CN208741127U CN208741127U CN201820537075.7U CN201820537075U CN208741127U CN 208741127 U CN208741127 U CN 208741127U CN 201820537075 U CN201820537075 U CN 201820537075U CN 208741127 U CN208741127 U CN 208741127U
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Abstract
Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex, belongs to orthopedic medical device technical field, for strutting to gonitis Tibial osteotomy position.Its technical solution is: upper distraction plate is connected with the front end of lower distraction plate by distraction plate shaft, the front end for strutting seat passes through connecting rod shaft respectively and is connected with the rear end of upper distraction plate and lower distraction plate, the one end for strutting connecting rod is connected with connecting rod shaft, other end rod shaft is connected, the rear end for strutting seat is connected with the front end of casing, there is screw thread at the rear portion of casing, screw pull rod is located in casing, it is to be rotatably connected between the front and rear portion of screw pull rod, the front end of screw pull rod passes through and struts seat, there is axis hole in the front end of screw pull rod, the axis hole of rod shaft and screw pull rod is to be rotatably assorted, the rear portion of screw pull rod has screw thread and the screw thread at casing rear portion to match.The utility model gradual to the implementation of osteotomy gap in art can slowly strut, and keep inside cortex complete not broken in art.
Description
Technical field
The utility model relates to a kind of pair of gonitis Tibial osteotomy positions to strut, and keep inside cortex completely continuous
The device split belongs to orthopedic medical device technical field.
Background technique
Knee joint osseous arthritis is the elderly's one of the most common type joint disease, and causes the elderly's lower limb disability
Main cause drastically influences the daily routines and quality of life of the elderly.Knee joint osseous arthritis refers to due to knee joint
A kind of chronic Bones and joints illness caused by cartilage degeneration, osteoproliferation is clinically mainly shown as gonalgia and not
With the dysfunction of degree, partially there are arthroncus, hydrops, x-ray performance joint space narrows, and joint margins spur is formed, soft
Osteosclerosis and cystis degeneration under bone.X-ray film has knee joint osseous arthritis shower about 60% in 55 years old or more crowds, wherein 35%--
50% has clinical manifestation.When gerontal patient's gonitis knee joint varus, stress concentrates on kneed inboard portion, and makes to send out
The raw degenerative change on the inside of knee, which is in progress, to be accelerated, and in this case, proximal ends of tibia Osteotomy is common corresponding hand
Art treatment method, but usually can seriously affect shin bone overall stability because cortical bone is broken in art, then need long bone plate
It is supported fixation, is otherwise easy to appear iatrogenic fracture of shaft of tibia displacement problem.The bone plate additionally placed will cause additionally
Operative incision, soft tissue injury and medical resource waste, make the complication rates such as postoperative wound infection and dysfunction
It improves, making patients' medical burden.
It, can be merely in osteotomy gap by the study found that completely not broken if can reach cortical bone in art
Middle merging bone block or polymeric filler form medial support without other plate fixation.Since sclerotin often has
Inertia, without violence osteotomy, it is possible to realize that inside cortex is not broken.But so far, inside cortex how is protected
Inertia is not resolved so as not to the problem of non-plastic fracture, and becoming influences to have to be broken through without using bone plate
It is crucial, it would be highly desirable to solve.
Utility model content
The technical problem to be solved by the utility model is to provide after a kind of not broken Tibial osteotomy of cortex on the inside of holding
Progressive dilator, this progressive dilator gradual to the implementation of osteotomy gap in art can slowly strut, and keep inside cortex
It is complete not broken in art, basic condition is provided for subsequent procedures operation.
The technical solution for solving above-mentioned technical problem is:
Progressive dilator after the not broken Tibial osteotomy of cortex on the inside of a kind of holding, it include upper distraction plate, lower distraction plate,
It struts seat, casing, screw pull rod, strut connecting rod, distraction plate shaft, rod shaft, connecting rod shaft, upper distraction plate and lower distraction plate
Respectively rectangular flat plate, upper distraction plate and the plate face of lower distraction plate are parallel staggered relatively, the length of upper distraction plate and lower distraction plate
The front end of rectangular length direction is connected by distraction plate shaft, and the front end for strutting seat passes through connecting rod shaft and upper distraction plate respectively
It is connected with the rear end of lower distraction plate, the one end for strutting connecting rod is connected with connecting rod shaft, and the other end pull rod for strutting connecting rod turns
Axis is connected, and the rear end for strutting seat is connected with the front end of casing, and there is screw thread at the rear portion of casing, and screw pull rod is located in casing,
To be rotatably connected between the front and rear portion of screw pull rod, the front end of screw pull rod, which passes through, struts seat, the front end of screw pull rod
There is an axis hole, the axis hole of rod shaft and screw pull rod is to be rotatably assorted, and there is the spiral shell of screw thread Yu casing rear portion at the rear portion of screw pull rod
Line matches.
Progressive dilator after the not broken Tibial osteotomy of cortex on the inside of above-mentioned holding, the seat that struts is by bottom plate and two sides
Board group at, bottom plate and side plate are rectangular slab, and the one side of the board of bottom plate is opposite with the rear end of upper distraction plate, lower distraction plate, two
A side plate is located at the bottom plate side opposite with upper distraction plate, lower distraction plate, and two side plates are vertical with the both ends of bottom plate respectively
It is parallel to be welded to connect, there is sliding groove respectively on two side plates, two connecting rod shafts are parallel, and the both ends difference of two connecting rod shafts is embedding
In the sliding groove of two side plates, the rear end sides of upper distraction plate and lower distraction plate have the two of axis hole and two connecting rod shafts respectively
End is connected, the other side of the plate face of bottom plate and one end of casing is vertical connects, and there is circular hole at the plate face of bottom plate place opposite with casing,
The internal diameter of circular hole and casing matches, and the circular hole that the front end of screw pull rod passes through bottom plate is connected with rod shaft.
Progressive dilator after the not broken Tibial osteotomy of cortex, described to strut there are four connecting rods on the inside of above-mentioned holding, each
There are two strutting connecting rod, two of every side strut one end of connecting rod one end with upper and lower two connecting rod shafts respectively for side plate side
For rotation connection, four other ends for strutting connecting rod pass through rod shaft respectively and are connected with the front end of screw pull rod.
Progressive dilator after the not broken Tibial osteotomy of above-mentioned holding inside cortex, the rear end of the front of the screw pull rod
There is shrinkage pool on face, the side wall of shrinkage pool has vertically that there are protrusion in the ejector pin with screw pull rod axial direction, the front end at the rear portion of screw pull rod
The internal diameter of rotary table, the diameter and the shrinkage pool of screw pull rod front rear end face of rotary table matches, and rotary table is inserted into shrinkage pool, rotary table
Circumference is fluted, and the ejector pin front end on shrinkage pool side wall is embedded into groove, and ejector pin is to be slidably matched with groove.
Progressive dilator after the not broken Tibial osteotomy of above-mentioned holding inside cortex, the upper and lower part of described two side plates
There are upper sliding slot and lower slider slot respectively, the both ends of the connecting rod shaft of upper distraction plate connection are embedded in upper sliding slot respectively, lower support
The both ends for opening the connecting rod shaft of plate connection are embedded in respectively in lower slider slot.
Progressive dilator, the centre of the rod shaft and spiral after the not broken Tibial osteotomy of above-mentioned holding inside cortex
The front end of pull rod is the connection that is rotatably assorted, and four other ends for strutting connecting rod are respectively to be rotatably assorted with rod shaft, two sides
Two one end for strutting connecting rod of plate side are located at the two sides of screw pull rod.
Progressive dilator after the not broken Tibial osteotomy of cortex on the inside of above-mentioned holding, the upper distraction plate and lower distraction plate
There are baffle in two sides respectively, and baffle is triangle, and baffle is vertical with the lower edge of upper distraction plate and lower distraction plate respectively to be connect, baffle
Triangular tip be located at upper distraction plate and under strut at front edge of board distraction plate shaft, the width of the rear end of baffle and upper distraction plate
The minimum range closed up opposite with lower distraction plate is equal.
Progressive dilator after the not broken Tibial osteotomy of cortex, the body of rod rear end of the screw pull rod connect on the inside of above-mentioned holding
Swing handle is connect, turning handle gloves pass through after the body of rod of bolt and screw pull rod in the body of rod rear end of screw pull rod, swing handle
End is connected.
The beneficial effects of the utility model are:
The front end of the upper distraction plate of the utility model and lower distraction plate is put into osteotomy gap, rotates screw pull rod, spiral
Pull rod drives the outer end for strutting connecting rod mobile to two sides, struts connecting rod and struts upper distraction plate and lower distraction plate to two sides, makes to cut
Sutura gap is gradually increased, and achievees the effect that restore that articular surface is smooth and the normal lower limb line of force.During strutting osteotomy gap,
Screw pull rod uses gradual slow rotation, and rotates repeatedly, and one into one moves back and struts sutura gradually, guarantees that inside cortex will not
It is broken because of unexpected violence.
The utility model is the pioneering of Tibial osteotomy reset, can implement gradual slow support to osteotomy gap in art
It opens, keeps inside cortex complete not broken in art, be placed in bone block or macromolecule filling in osteotomy gap merely to reach
Object forms medial support without the purpose of other plate fixation.The utility model structure is simple, easy to use, effect
Well, it solves the problems, such as to prevent inside cortex non-plastic fracture currently without solution, is worth in industry promoting the use of.
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 A-A cross-sectional view of Fig. 1；
Fig. 4 is the softened state schematic diagram of Fig. 1；
Fig. 5 is the top view of Fig. 4
Fig. 6 is the B-B cross-sectional view of Fig. 4；
Fig. 7 is the structural schematic diagram of screw pull rod；
Fig. 8 is the use state diagram of the utility model.
Mark in figure as follows: upper distraction plate 1, lower distraction plate 2 strut seat 3, casing 4, screw pull rod 5, strut connecting rod 6, support
Open plate shaft 7, rod shaft 8, connecting rod shaft 9, bottom plate 10, side plate 11, sliding groove 12, upper sliding slot 13, lower slider slot 14, recessed
Hole 15, ejector pin 16, rotary table 17, groove 18, baffle 19, swing handle 20, shin bone 21, osteotomy gap 22.
Specific embodiment
The utility model by upper distraction plate 1, lower distraction plate 2, strut seat 3, casing 4, screw pull rod 5, strut connecting rod 6, support
Plate shaft 7, rod shaft 8, connecting rod shaft 9, baffle 19, swing handle 20 is opened to form.
Fig. 1,2,3,4,5,6 show that upper distraction plate 1 and lower distraction plate 2 are respectively rectangular flat plate, and upper distraction plate 1 is under
The plate face of distraction plate 2 is staggered relatively in parallel, and the rectangular length direction front end of upper distraction plate 1 and lower distraction plate 2 is by distraction plate
Shaft 7 is connected, and upper distraction plate 1 and lower distraction plate 2 can be opened around 7 phase two sides of distraction plate shaft, increases osteotomy gap 22.
There are baffle 19 in the two sides of Fig. 1,4 displays, upper distraction plate 1 and lower distraction plate 2 respectively, and baffle 19 is triangle, baffle
19 it is vertical with the lower edge of upper distraction plate 1 and lower distraction plate 2 respectively connect, the triangular tip of baffle 19 is located at upper distraction plate 1
At lower 2 front end distraction plate shaft 7 of distraction plate, the width of the rear end of baffle 19 is opposite with upper distraction plate 1 and lower distraction plate 2 to be closed up
Minimum range it is equal.The effect of baffle 19 avoids various tissues from entering upper distraction plate 1 and lower support when being in insertion osteotomy gap
It opens in the gap between plate 2.
Fig. 1,2,3,4,5,6 are shown, are strutted seat 3 and are made of bottom plate 10 and two side plates 11, bottom plate 10 and side plate 11 are
Rectangular slab.Bottom plate 10 is located at the rear of upper distraction plate 1, lower distraction plate 2, the one side of the board of bottom plate 10 and upper distraction plate 1, lower support
The rear end for opening plate 2 is opposite.Two side plates 11 are located at the side opposite with upper distraction plate 1, lower distraction plate 2 of bottom plate 10, and two
Side plate 2 with the vertical parallel welded connecting in the both ends of bottom plate 10, there is sliding groove 12 on two side plates 2 respectively respectively, and two connecting rods turn
Axis 9 is in parallel in sliding groove 12.
Fig. 1,2,3,4,5,6 show that sliding groove 12 is made of upper sliding slot 13 and lower slider slot 14 respectively.Two side plates 11
Upper and lower part have upper sliding slot 13 and lower slider slot 14 respectively, the rear end sides of upper distraction plate 1 and lower distraction plate 2 have respectively
Axis hole is connected with two connecting rod shafts 9, and the both ends for the connecting rod shaft 9 that upper distraction plate 1 connects are embedded in respectively in upper sliding slot 13,
The both ends for the connecting rod shaft 9 that lower distraction plate 2 connects are embedded in respectively in lower slider slot 14.Two connecting rod shafts 9 can be in upper sliding
It is slided up and down in slot 13 and lower slider slot 14, two connecting rod shafts 9 can drive distraction plate 1 and lower distraction plate when sliding up and down
2 rear end moves up and down respectively, makes distraction plate 1 and lower distraction plate 2 with 7 axial sides of distraction plate shaft opening.
Fig. 1,2,3,4,5,6 show, strut the plate face of the bottom plate 10 of seat 3 the other side it is vertical with one end of casing 4 connect,
The plate face and casing 4 of bottom plate 10 have circular hole with respect to place, and the internal diameter of circular hole and casing 4 matches, and there is screw thread at the rear portion of casing 4.
Fig. 1,2,3,4,5 show that screw pull rod 5 is located in casing 4, and the front end of screw pull rod 5 passes through the bottom plate for strutting seat 3
10 circular hole, the rear portion of screw pull rod 5 have screw thread and the screw thread at 4 rear portion of casing to match, the body of rod rear end connection of screw pull rod 5
Swing handle 20,20 sets of the swing handle body of rod rear ends in screw pull rod 5, swing handle 20 pass through bolt and screw pull rod 5
Body of rod rear end is connected.
Fig. 7 shows that screw pull rod 5 is bi-body structure, is rotatably connected between the front and rear portion of screw pull rod 5.Spiral shell
Revolving has shrinkage pool 15 on the rear end face of the front of pull rod 5, the side wall of shrinkage pool 15 has pin hole vertically axial with screw pull rod 5.Spiral
There is a rotary table 17 of protrusion in the front end at the rear portion of pull rod 5, and the diameter of rotary table 17 is interior with the shrinkage pool 15 of 5 front rear end face of screw pull rod
Diameter matches, and rotary table 17 is inserted into shrinkage pool 15, and rotary table 17 can rotate in shrinkage pool 15.The circumference of rotary table 17 fluted 18,
The pin hole that the front end of ejector pin 16 passes through on 15 side wall of shrinkage pool is embedded into groove 18, and ejector pin 16 is to be slidably matched with groove 8.Using
Such structure can be and connect and can relatively rotate between the front and rear of screw pull rod 5, in rotation screw pull rod 5
When the swing handle 20 of rear end, screw pull rod 5 can be made to rotate and be moved forward and backward along the inner hole thread of casing 4, and spiral is drawn
5 front end of bar will not rotate, and can only be moved forward and backward.
There are axis hole in Fig. 3,6 displays, the front end of screw pull rod 5, and rod shaft 8 is through in axis hole, and rod shaft 8 and spiral are drawn
The axis hole of bar 5 is to be rotatably assorted.When 5 front end of screw pull rod is moved forward and backward, screw pull rod 5 can drive 8 front and back of rod shaft
It is mobile, so that the drive of rod shaft 8 struts the back-and-forth motion of connecting rod 6.
Fig. 3,6 displays, strut there are four connecting rods 6, and each 11 side of side plate is there are two strutting connecting rod 6, and two of every side
The one end for strutting connecting rod 6 is respectively rotation connection with one end of upper and lower two connecting rod shafts 9, and four strut the other end of connecting rod 6
It is connected respectively by rod shaft 8 with the front end of screw pull rod 5.Screw pull rod 5 can drive rod shaft 8 to be moved forward and backward.
Fig. 3,6 displays, the centre of rod shaft 8 are to be rotatably assorted to connect with the front end of screw pull rod 5, two side plates 11 1
Two one end for strutting connecting rod 6 of side are located at the two sides of screw pull rod 5.
Fig. 8 shows that the use state of the utility model is as follows:
Firstly, after being formed on the outside of the osteotomy line of shin bone 21 that the upper distraction plate 1 of dilator and lower 2 front end of distraction plate is slow
It is inserted into osteotomy gap 22；
Then, slowly the swing handle 20 of rotation 5 rear end of screw pull rod, screw pull rod 5 are revolved along the inner hole thread of casing 4
Turn and move backward, screw pull rod 5 drives rod shaft 8 to move backward, so that rod shaft 8 drives the inside for strutting connecting rod 6
End moves backward；
Two connecting rod shafts 9 that four outboard ends for strutting connecting rod 6 connect are respectively along upper sliding slot 13 and lower slider slot
14 move outward, and two connecting rod shafts 9 drive the upper distraction plate 1 connected and lower 2 rear end of distraction plate to turn with distraction plate respectively
Axis 7 is axial sides opening, is gradually increased osteotomy gap 22；
It struts to the normal lower limb line of force is restored, stop rotating screw pull rod 5；
It rotates repeatedly, one into one moves back and struts osteotomy gap 22 gradually, guarantees that inside cortex will not be because of unexpected
Violence and be broken.
Claims (8)
1. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of a kind of holding, it is characterised in that: it includes upper distraction plate
(1), lower distraction plate (2), strut seat (3), casing (4), screw pull rod (5), strut connecting rod (6), distraction plate shaft (7), pull rod
Shaft (8), connecting rod shaft (9), upper distraction plate (1) and lower distraction plate (2) are respectively rectangular flat plate, upper distraction plate (1) and under
The plate face of distraction plate (2) is staggered relatively in parallel, the front end of the rectangular length direction of upper distraction plate (1) and lower distraction plate (2)
Be connected by distraction plate shaft (7), strut seat (3) front end pass through respectively connecting rod shaft (9) and upper distraction plate (1) and under strut
The rear end of plate (2) is connected, and the one end for strutting connecting rod (6) is connected with connecting rod shaft (9), and the other end for strutting connecting rod (6) is drawn
Bar shaft (8) is connected, and the rear end for strutting seat (3) is connected with the front end of casing (4), and there are screw thread, spiral in the rear portion of casing (4)
Pull rod (5) is located in casing (4), is rotatably connected between the front and rear portion of screw pull rod (5), before screw pull rod (5)
Across strutting seat (3), there is an axis hole in the front end of screw pull rod (5) at end, and the axis hole of rod shaft (8) and screw pull rod (5) is rotation
Cooperation, the rear portion of screw pull rod (5) has screw thread and the screw thread at casing (4) rear portion to match.
2. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 1, it is characterised in that:
The seat (3) that struts is made of bottom plate (10) and two side plates (11), and bottom plate (10) and side plate (11) are rectangular slab, bottom plate
(10) one side of the board is opposite with the rear end of upper distraction plate (1), lower distraction plate (2), and two side plates (11) are located at bottom plate
(10) and the opposite side of upper distraction plate (1), lower distraction plate (2), two side plates (11) are vertical with the both ends of bottom plate (10) respectively
It is parallel to be welded to connect, have respectively sliding groove (12) on two side plates (11), two connecting rod shafts (9) in parallel, two connecting rod shafts
(9) both ends are embedded in respectively in the sliding groove (12) of two side plates (11), the rear end two of upper distraction plate (1) and lower distraction plate (2)
Side has axis hole and the both ends of two connecting rod shafts (9) to be connected respectively, and the one of the other side of the plate face of bottom plate (10) and casing (4)
There is circular hole at the vertical connection in end, the plate face of bottom plate (10) and casing (4) opposite place, and circular hole and the internal diameter of casing (4) match, spiral
The circular hole that the front end of pull rod (5) passes through bottom plate (10) is connected with rod shaft (8).
3. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 1, it is characterised in that:
Described to strut there are four connecting rod (6), there are two strutting connecting rod (6), two of every side strut connecting rod for each side plate (11) side
(6) one end is rotation connection with one end of upper and lower two connecting rod shafts (9) respectively, and four strut the other end point of connecting rod (6)
It is not connected by rod shaft (8) with the front end of screw pull rod (5).
4. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 1, it is characterised in that:
Have shrinkage pool (15) on the rear end face of the front of the screw pull rod (5), the side wall of shrinkage pool (15) have vertically with screw pull rod (5) axis
To ejector pin (16), there are the rotary table (17) of protrusion, the diameter and screw pull rod of rotary table (17) in the front end at the rear portion of screw pull rod (5)
(5) internal diameter of the shrinkage pool (15) of front rear end face matches, and rotary table (17) is inserted into shrinkage pool (15), and the circumference of rotary table (17) has
Groove (18), ejector pin (16) front end on shrinkage pool (15) side wall are embedded into groove (18), and ejector pin (16) and groove (18) are to slide
Dynamic cooperation.
5. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 2, it is characterised in that:
There are upper sliding slot (13) and lower slider slot (14), upper distraction plate (1) connection in the upper and lower part of described two side plates (11) respectively
The both ends of connecting rod shaft (9) be embedded in upper sliding slot (13) respectively, the both ends of the connecting rod shaft (9) of lower distraction plate (2) connection
Respectively in lower slider slot (14).
6. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 3, it is characterised in that:
The centre of the rod shaft (8) is to be rotatably assorted to connect with the front end of screw pull rod (5), and four strut the another of connecting rod (6)
End is respectively to be rotatably assorted with rod shaft (8), and two one end for strutting connecting rod (6) of two side plate (11) sides are located at
The two sides of screw pull rod (5).
7. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 1, it is characterised in that:
The two sides of the upper distraction plate (1) and lower distraction plate (2) have baffle (19) respectively, and baffle (19) is triangle, baffle (19) point
Not vertical with the lower edge of upper distraction plate (1) and lower distraction plate (2) to connect, the triangular tip of baffle (19) is located at upper distraction plate
(1) and at lower distraction plate (2) front end distraction plate shaft (7), the width of the rear end of baffle (19) and upper distraction plate (1) and under strut
The opposite minimum range closed up of plate (2) is equal.
8. progressive dilator after the not broken Tibial osteotomy of cortex on the inside of holding according to claim 1, it is characterised in that:
The body of rod rear end of the screw pull rod (5) connects swing handle (20), and swing handle (20) covers after the body of rod of screw pull rod (5)
End, swing handle (20) are connected by bolt with the body of rod rear end of screw pull rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820537075.7U CN208741127U (en) | 2018-04-16 | 2018-04-16 | Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820537075.7U CN208741127U (en) | 2018-04-16 | 2018-04-16 | Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex |
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| CN208741127U true CN208741127U (en) | 2019-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324359A (en) * | 2018-04-16 | 2018-07-27 | 河北医科大学第三医院 | Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex |
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2018
- 2018-04-16 CN CN201820537075.7U patent/CN208741127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324359A (en) * | 2018-04-16 | 2018-07-27 | 河北医科大学第三医院 | Progressive dilator after a kind of not broken Tibial osteotomy of holding inside cortex |
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