CN208481451U - A kind of portable nail taking out apparatus in orthopaedics - Google Patents
A kind of portable nail taking out apparatus in orthopaedics Download PDFInfo
- Publication number
- CN208481451U CN208481451U CN201820251116.6U CN201820251116U CN208481451U CN 208481451 U CN208481451 U CN 208481451U CN 201820251116 U CN201820251116 U CN 201820251116U CN 208481451 U CN208481451 U CN 208481451U
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- limbs
- fixed plate
- sliding block
- telescopic mast
- nail
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Abstract
The utility model discloses a kind of portable nail taking out apparatus in orthopaedics, including the left fixed plate of limbs and the right fixed plate of limbs, the top of the left fixed plate of limbs is fixed with a horizontal stripe by screw along the left fixed plate extending direction of limbs, first sliding groove is offered at the top of the horizontal stripe, the internal slide of the first sliding groove is equipped with the first sliding block, the top vertical of first sliding block is fixed with the first telescopic mast, the top horizontal of first telescopic mast is fixedly installed with the second telescopic mast, and the inner cylinder top of the second telescopic mast is horizontally fixed with a circular fixed ring.The utility model is when in use, its angle for taking nail to operate whether laterally or it is longitudinal also or be that skewed can be adjusted, significantly increase the scope of application of the device for fetching nail, enable the device for fetching nail all types of fracture patients screw remove operation in carry out using, in addition, device for fetching nail entirety is pedestal by the left fixed plate of limbs and the right fixed plate of limbs, and whole small volume carries extremely convenient.
Description
Technical field
The utility model relates to orthopaedic technique field, specially a kind of portable nail taking out apparatus in orthopaedics.
Background technique
It the use of steel nail and Interal fixation fracture site is common operation method, steel in existing operation in fracture operation
Nail implantation human body also needs to take out steel nail after fracture site heals for a period of time.
It is well known that in repair of fractured bones operation, direction and degree of the doctor according to fracture fracture are implanted into angle when steel nail
And be not quite similar, whether longitudinal or laterally also or to be that drift angle is skewed be likely to, a kind of orthopaedics of publication takes
It follows closely in device (notification number: CN205054420U, the day for announcing: 2016.03.02), arc-shaped nail frame is taken to cooperate by setting one
First through slot, sliding block and second fastener enable the nail-fetching device to achieve the purpose that adjusting takes and follow closely work angle, but due to
Taking is to be fixedly connected before nail frame and bracket, so that it takes nail angle can only be according to the arcuate directions implementation adjusting for taking nail frame, nothing
Method achievees the effect that comprehensive adjusting, limits the scope of application of the nail-fetching device, is unable to satisfy all types of fracture patients and takes nail hand
The demand of art.
Utility model content
The purpose of this utility model is to provide a kind of portable nail taking out apparatus in orthopaedics, to solve institute in above-mentioned background technique
The problem of mentioning.
To achieve the above object, the utility model provides the following technical solutions:
A kind of portable nail taking out apparatus in orthopaedics, including the left fixed plate of limbs and the right fixed plate of limbs, the left fixation of limbs
Plate is connected by screw rod with the top and bottom of the right fixed board ends of limbs, and it is solid that the both ends of the screw rod extend through a limbs left side
Fixed board and the right fixed plate of limbs, the outside at the screw rod both ends go back screw thread and are equipped with Fast dismountable screw nut, the left fixed plate of limbs
Top is fixed with a horizontal stripe by screw along the left fixed plate extending direction of limbs, offers first sliding groove at the top of the horizontal stripe, this
The internal slide of one sliding slot is equipped with the first sliding block, and the side of the first sliding groove offers one and opens with what is communicated outside horizontal stripe
Slot offers the card slot of a strip in the middle part of the fluting two sides, and the interior Slideslip of the fluting is provided with a fixture block, the fixture block
Internal whorl is equipped with the first fastening bolt, and the end of first fastening bolt extends to the inside of first sliding groove, and described
The top vertical of one sliding block is fixed with the first telescopic mast, and the outer barrel top of first telescopic mast is equipped with flexible for adjusting first
Second fastening bolt of frictional force between the inner cylinder and outer barrel of column, the top horizontal of first telescopic mast are fixedly installed with
Second telescopic mast, the outer barrel top of second telescopic mast be equipped with inner cylinder for adjusting the second telescopic mast and outer barrel it
Between frictional force third fastening bolt, the inner cylinder top of second telescopic mast is horizontally fixed with a circular fixed ring,
The inside activity of the fixed ring is connected with the body of rod in one, is equipped with the 4th fastening bolt on the outside of the fixed ring, the interior body of rod
Vertically integrally formed with connecting column, the bottom level of the connecting column is welded with the second sliding block, the bottom of second telescopic mast for bottom end
Portion is equipped with angular adjustment frame, and the side of the angular adjustment frame laterally offers second sliding slot, and second sliding block is slidably connected at
The inside of second sliding slot, the thread in inner cavity of second sliding block are equipped with the 5th fastening bolt, the end of the 5th fastening bolt
Portion runs through the second sliding block and is extended down to the inside of second sliding slot, and the inner cavity of the angular adjustment frame longitudinally offers and angular adjustment frame
The through slot that top and bottom communicate is slidably fitted with third sliding block on the inside of the through slot, and the inner cavity in the middle part of the third sliding block is also perpendicular
It directly is fixed with guide cylinder, the two sides of the guide cylinder are additionally provided with for adjusting clamping degree between third sliding block and angular adjustment frame
6th fastening bolt, the internal slide of the guide cylinder, which is plugged with, takes nail axis, this takes the bottom end of nail axis to extend to guide cylinder bottom end
Outside and be fixed with an end fixing device, the bottom end of the end fixing device, which is fixed with, takes nail end head.
Preferably, the left fixed plate of the limbs and the right fixed plate of limbs are long strip shape structure, and opposite side
Middle part is arcuate structure, wears binding structure between the screw rod and the left fixed plate of limbs and the right fixed plate of limbs for sliding.
Preferably, the interior bar body is located at groove of the outside integrally formed with an annular of fixed ring interior section, in
The top of the body of rod extends to the outside at the top of fixed ring and integrally formed with a disk, and the diameter of the disk is greater than the interior of fixed ring
Diameter, the front end of the 4th fastening bolt extend to the inside of fixed ring through fixed ring, and with the groove position on the interior body of rod
Set it is corresponding, between the 4th fastening bolt and fixed ring be screw connection structure.
Preferably, clamping is slided in the intermediate position of the cross section structure of a lateral H shape of the third sliding block, third sliding block
In the inside of through slot, the 6th fastening bolt is threadably mounted at the inner cavity of third slider top two sides, and the 6th fastening bolt
End is in contact with angular adjustment frame.
Preferably, the tip for taking nail end head is hexagonal prisms knot compatible with the recessed portion of soket head cap screw nut
Structure is counteroffensive silk screw thread drill bit.
Preferably, the angular adjustment frame is semicircle arc structure, radian and the angular adjustment frame of second sliding slot
Radian is adapted.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model passes through the left fixed plate of setting limbs and the right fixed plate of limbs, the screw rod being equipped with and Quick Release spiral shell
Mother, enables the device for fetching nail to fix limbs of patient position, and nail is conveniently taken to operate, in addition, by solid on a limbs left side
The horizontal stripe of fixed board top setting, and is arranged the first sliding block inside the first sliding groove inside horizontal stripe, then first be equipped with
Telescopic mast, the second telescopic mast, fixed ring and the interior body of rod, and the second sliding slot, the second sliding block, logical being arranged on angular adjustment frame
Slot and third sliding block, then be equipped with the first fastening bolt, the second fastening bolt, third fastening bolt, the 4th fastening bolt,
5th fastening bolt and the 6th fastening bolt, so that the device for fetching nail is when in use, the angle for taking nail to operate is whether lateral
Or it is longitudinal also or be it is skewed can be adjusted, the scope of application of the device for fetching nail is significantly increased, so that this takes
Spike devices can be removed in the screw of all types of fracture patients and be carried out in operation using in addition, the device for fetching nail is whole by limbs
Left fixed plate and the right fixed plate of limbs are pedestal, and whole small volume carries extremely convenient.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model angular adjustment frame overlooking structure diagram；
Fig. 3 is the utility model fixed ring schematic cross-sectional view；
Fig. 4 is the utility model angular adjustment frame cross-sectional configuration schematic diagram.
In figure: the left fixed plate of 1 limbs, the right fixed plate of 2 limbs, 3 screw rods, 4 Fast dismountable screw nuts, 5 screws, 6 horizontal stripes, 7 first are slided
Slot, 8 first sliding blocks, 9 first fastening bolts, 10 first telescopic masts, 11 second fastening bolts, 12 second telescopic masts, 13 thirds are tight
Fixing bolt, 14 fixed rings, the body of rod, 16 the 4th fastening bolts, 17 connecting columns, 18 angular adjustment framves, 19 second sliding slots, 20 in 15
Two sliding blocks, 21 the 5th fastening bolts, 22 through slots, 23 third sliding blocks, 24 the 6th fastening bolts, 25 guide cylinders, 26 take nail axis, 27 ends
The fixed device of head, 28 take nail end head.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4, a kind of portable nail taking out apparatus in orthopaedics, including the left fixed plate 1 of limbs and the right fixed plate 2 of limbs are please referred to,
The left fixed plate 1 of limbs passes through screw rod 3 with the top and bottom at right 2 both ends of fixed plate of limbs and is connected, the both ends point of the screw rod 3
Not Guan Chuan the left fixed plate 1 of limbs and the right fixed plate 2 of limbs, the outside at 3 both ends of screw rod go back screw thread and Fast dismountable screw nut 4, limbs be installed
Left fixed plate 1 and the right fixed plate 2 of limbs are long strip shape structure, and are arcuate structure, screw rod 3 in the middle part of opposite side
Binding structure is worn for sliding between the left fixed plate 1 of limbs and the right fixed plate 2 of limbs, the top of the left fixed plate 1 of limbs is along a limbs left side
1 extending direction of fixed plate is fixed with a horizontal stripe 6 by screw 5, offers first sliding groove 7 at the top of the horizontal stripe 6, the first sliding groove 7
Internal slide the first sliding block 8 is installed, the side of first sliding groove 7 offers one and the fluting that communicates outside horizontal stripe 6, the fluting
The card slot of a strip is offered in the middle part of two sides, the interior Slideslip of the fluting is provided with a fixture block, the internal whorl of the fixture block
First fastening bolt 9 is installed, the end of the first fastening bolt 9 extends to the inside of first sliding groove 7, the top of the first sliding block 8
It is vertically fixed the first telescopic mast 10, the outer barrel top of first telescopic mast 10 is equipped with for adjusting the interior of the first telescopic mast 10
Second fastening bolt 11 of frictional force between cylinder and outer barrel, the top horizontal of the first telescopic mast 10 are fixedly installed with second and stretch
Contracting column 12, the outer barrel top of the second telescopic mast 12 are equipped between the inner cylinder and outer barrel for adjusting the second telescopic mast 12 and rub
The third fastening bolt 13 of power is wiped, the inner cylinder top of the second telescopic mast 12 is horizontally fixed with a circular fixed ring 14, should
The inside activity of fixed ring 14 is connected with the body of rod 15 in one, is equipped with the 4th fastening bolt 16, the interior body of rod 15 on the outside of fixed ring 14
In the outside of 14 interior section of fixed ring integrally formed with the groove of an annular, the top of the interior body of rod 15 extends to fixed ring 14
The outside at top and integrally formed with a disk, the diameter of the disk is greater than the interior diameter of fixed ring 14, the 4th fastening bolt 16
Front end extend to the inside of fixed ring 14 through fixed ring 14, and corresponding with the groove location on the interior body of rod 15, the 4th is tight
It is screw connection structure between fixing bolt 16 and fixed ring 14, the bottom end of the interior body of rod 15, should vertically integrally formed with connecting column 17
The bottom level of connecting column 17 is welded with the second sliding block 20, and the bottom of the second telescopic mast 12 is equipped with angular adjustment frame 18, the angle
The side of adjusting bracket 18 laterally offers second sliding slot 19, and angular adjustment frame 18 is semicircle arc structure, second sliding slot 19
Radian be adapted with the radian of angular adjustment frame 18, the second sliding block 20 is slidably connected at the inside of second sliding slot 19, and second is sliding
The thread in inner cavity of block 20 is equipped with the 5th fastening bolt 21, and the end head of the 5th fastening bolt 21 through the second sliding block 20 and is prolonged
To the inside of second sliding slot 19, the inner cavity of angular adjustment frame 18, which is longitudinally offered, to be communicated at the top and bottom of angular adjustment frame 18
Through slot 22, the inside of the through slot 22 are slidably fitted with third sliding block 23, the cross section of third sliding block 23 structure of a lateral H shape, and
The intermediate position sliding of three sliding blocks 23 is connected to the inside of through slot 22, and the inner cavity at 23 middle part of third sliding block, which is also vertically fixed, leads
To cylinder 25, the two sides of the guide cylinder 25 are additionally provided with for adjusting clamping degree between third sliding block 23 and angular adjustment frame 18
Six fastening bolts 24, the 6th fastening bolt 24 are threadably mounted at the inner cavity of 23 top two sides of third sliding block, and the 6th fastening bolt
24 end is in contact with angular adjustment frame 18, and the internal slide of guide cylinder 25, which is plugged with, takes nail axis 26, this takes the bottom of nail axis 26
End extends to the outside of 25 bottom end of guide cylinder and is fixed with an end fixing device 27, the bottom end clamping of the end fixing device 27
It is fixed with and takes nail end head 28, taking the tip of nail end head 28 is hexagonal prisms compatible with the recessed portion of soket head cap screw nut
Structure is counteroffensive silk screw thread drill bit.
The utility model is by the left fixed plate 1 of setting limbs and the right fixed plate 2 of limbs, the screw rod 3 and Quick Release being equipped with
Nut 4, enables the device for fetching nail to fix limbs of patient position, and nail is conveniently taken to operate, in addition, by a limbs left side
The horizontal stripe 6 of 1 top of fixed plate setting, and first sliding block 8 is set inside first sliding groove 7 inside horizontal stripe 6, then be equipped with
The first telescopic mast 9, the second telescopic mast 10, fixed ring 14 and the interior body of rod 15, and be arranged on angular adjustment frame 18 second
Sliding slot 19, the second sliding block 20, through slot 22 and third sliding block 23, then the first fastening bolt 9, the second fastening bolt that are equipped with
11, third fastening bolt 13, the 4th fastening bolt 16, the 5th fastening bolt 21 and the 6th fastening bolt 24, bind so that this takes
Set the angle for taking nail to operate when in use whether laterally or it is longitudinal also or be it is skewed can be adjusted, greatly
The scope of application for increasing the device for fetching nail, enable the device for fetching nail all types of fracture patients screw remove operation
In carry out using in addition, it by the left fixed plate 1 of limbs and the right fixed plate 2 of limbs is pedestal, whole volume that the device for fetching nail is whole
It is smaller, it carries extremely convenient.
The portable nail taking out apparatus in orthopaedics, in use, doctor will be suffered from by the left fixed plate 1 of limbs and the right fixed plate 2 of limbs
Person's body part to be performed the operation cooperates Fast dismountable screw nut 4 to be clamped fixation by screw rod 3, prevents limbs mobile, by adjusting the
One fastening bolt 9 it is elastic, slide the first sliding block 8, the integral position of nail extracting machine in the device for fetching nail is adjusted with this, according to reality
Border demand or operation need, by adjusting the elastic of the second fastening bolt 11 and third fastening bolt 13, so that first is flexible
The inner cylinder of column 10 and the second telescopic mast 12 is able to carry out sliding, and height and the transverse direction position of angular adjustment frame 18 are adjusted with this
Distance is set, in addition, by adjusting the elastic of the 4th fastening bolt 16, to facilitate the interior body of rod 15 to be revolved inside fixed ring 14
Turn, with this come achieve the purpose that adjust 18 level orientation of angular adjustment frame, through slot 22, Yi Ji is opened up in angular adjustment frame 18
22 internal slide of through slot installs third sliding block 23, and guide cylinder 25 is arranged inside third sliding block 23, so that taking nail end head
28 tilt angles have adjustability, and at the same time, the 5th fastening bolt 21 of cooperation, second sliding slot 19 and the second sliding block 20 make
The tilt angle of angular adjustment frame 18 has an adjustability, further expansion takes the range of nail 28 tilt angle of end head,
Expand the adaptability when device for fetching nail clinical use.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of portable nail taking out apparatus in orthopaedics, including the left fixed plate of limbs (1) and the right fixed plate of limbs (2), it is characterised in that:
The left fixed plate of limbs (1) passes through screw rod (3) with the top and bottom at the right fixed plate of limbs (2) both ends and is connected, the spiral shell
The both ends of bar (3) extend through the left fixed plate of limbs (1) and the right fixed plate of limbs (2), and spiral shell is gone back in the outside at screw rod (3) both ends
Line is equipped with Fast dismountable screw nut (4), and the top of the left fixed plate of limbs (1) passes through spiral shell along the left fixed plate of limbs (1) extending direction
Nail (5) is fixed with a horizontal stripe (6), offers first sliding groove (7) at the top of the horizontal stripe (6), the internal slide peace of the first sliding groove (7)
Equipped with the first sliding block (8), the side of the first sliding groove (7) offers one and the external fluting communicated of horizontal stripe (6), the fluting two
The card slot of a strip is offered in the middle part of side, the interior Slideslip of the fluting is provided with a fixture block, the internal whorl peace of the fixture block
Equipped with the first fastening bolt (9), the end of first fastening bolt (9) extends to the inside of first sliding groove (7), and described first
The top vertical of sliding block (8) is fixed with the first telescopic mast (10), and the outer barrel top of first telescopic mast (10) is equipped with for adjusting
Save the second fastening bolt (11) of frictional force between the inner cylinder and outer barrel of the first telescopic mast (10), first telescopic mast
(10) top horizontal is fixedly installed with the second telescopic mast (12), and the outer barrel top of second telescopic mast (12), which is equipped with, to be used for
Adjust the third fastening bolt (13) of frictional force between the inner cylinder and outer barrel of the second telescopic mast (12), second telescopic mast
(12) inner cylinder top is horizontally fixed with a circular fixed ring (14), and the inside activity of the fixed ring (14) is connected with one
The interior body of rod (15), fixed ring (14) outside are equipped with the 4th fastening bolt (16), the bottom end vertical one of the interior body of rod (15)
Body formed to have connecting column (17), the bottom level of the connecting column (17) is welded with the second sliding block (20), second telescopic mast
(12) bottom is equipped with angular adjustment frame (18), and the side of the angular adjustment frame (18) laterally offers second sliding slot (19), institute
The inside that the second sliding block (20) is slidably connected at second sliding slot (19) is stated, the thread in inner cavity of second sliding block (20) is equipped with
The end head of five fastening bolts (21), the 5th fastening bolt (21) through the second sliding block (20) and is extended down to second sliding slot (19)
Inside, the inner cavity of the angular adjustment frame (18) longitudinally offer the through slot communicated with angular adjustment frame (18) top and bottom
(22), third sliding block (23) are slidably fitted on the inside of the through slot (22), the inner cavity in the middle part of the third sliding block (23) is also solid vertically
Surely have guide cylinder (25), the two sides of the guide cylinder (25) be additionally provided with for adjust third sliding block (23) and angular adjustment frame (18) it
Between clamping degree the 6th fastening bolt (24), the internal slide of the guide cylinder (25) be plugged with takes nail axis (26), this takes nail
The bottom end of axis (26) extends to the outside of guide cylinder (25) bottom end and is fixed with an end fixing device (27), the fixed dress in the end
The bottom end for setting (27), which is fixed with, takes nail end head (28).
2. a kind of portable nail taking out apparatus in orthopaedics according to claim 1, it is characterised in that: the left fixed plate of limbs
(1) and the right fixed plate of limbs (2) is long strip shape structure, and is arcuate structure in the middle part of opposite side, the screw rod
(3) binding structure is worn for sliding between the left fixed plate of limbs (1) and the right fixed plate of limbs (2).
3. a kind of portable nail taking out apparatus in orthopaedics according to claim 1, it is characterised in that: the interior body of rod (15) is located at
Integrally formed with the groove of an annular, the top of the interior body of rod (15) extends to fixed ring in the outside of fixed ring (14) interior section
(14) outside at the top of and integrally formed with a disk, the diameter of the disk are greater than the interior diameter of fixed ring (14), and the described 4th
The front end of fastening bolt (16) extends to the inside of fixed ring (14) through fixed ring (14), and with the groove on the interior body of rod (15)
Position is corresponding, is screw connection structure between the 4th fastening bolt (16) and fixed ring (14).
4. a kind of portable nail taking out apparatus in orthopaedics according to claim 1, it is characterised in that: the third sliding block (23)
Cross section structure of a lateral H shape, the intermediate position sliding of third sliding block (23) are connected to the inside of through slot (22), and the 6th is tight
Fixing bolt (24) is threadably mounted at the inner cavity of two sides at the top of third sliding block (23), and the end of the 6th fastening bolt (24) and angle
Adjusting bracket (18) is in contact.
5. a kind of portable nail taking out apparatus in orthopaedics according to claim 1, it is characterised in that: described to take nail end head (28)
Tip be hexagonal prisms structure compatible with the recessed portion of soket head cap screw nut or for counteroffensive silk screw thread drill bit.
6. a kind of portable nail taking out apparatus in orthopaedics according to claim 1, it is characterised in that: the angular adjustment frame (18)
Radian for semicircle arc structure, second sliding slot (19) is adapted with the radian of angular adjustment frame (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251116.6U CN208481451U (en) | 2018-02-12 | 2018-02-12 | A kind of portable nail taking out apparatus in orthopaedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251116.6U CN208481451U (en) | 2018-02-12 | 2018-02-12 | A kind of portable nail taking out apparatus in orthopaedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208481451U true CN208481451U (en) | 2019-02-12 |
Family
ID=65255678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820251116.6U Expired - Fee Related CN208481451U (en) | 2018-02-12 | 2018-02-12 | A kind of portable nail taking out apparatus in orthopaedics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208481451U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110742683A (en) * | 2019-11-11 | 2020-02-04 | 祝汉忠 | Operation nail taking device for orthopedic medical treatment |
| CN110974389A (en) * | 2019-12-19 | 2020-04-10 | 吉陪陪 | Orthopedics nail taking device |
| CN111557726A (en) * | 2020-05-27 | 2020-08-21 | 南京医科大学附属口腔医院 | Special three-dimensional reduction device for jaw fracture |
| CN112089475A (en) * | 2020-08-28 | 2020-12-18 | 中南大学湘雅医院 | Femoral head marrow external fixation type drilling support |
-
2018
- 2018-02-12 CN CN201820251116.6U patent/CN208481451U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110742683A (en) * | 2019-11-11 | 2020-02-04 | 祝汉忠 | Operation nail taking device for orthopedic medical treatment |
| CN110974389A (en) * | 2019-12-19 | 2020-04-10 | 吉陪陪 | Orthopedics nail taking device |
| CN111557726A (en) * | 2020-05-27 | 2020-08-21 | 南京医科大学附属口腔医院 | Special three-dimensional reduction device for jaw fracture |
| CN112089475A (en) * | 2020-08-28 | 2020-12-18 | 中南大学湘雅医院 | Femoral head marrow external fixation type drilling support |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 Termination date: 20200212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |