CN108703801A - It is a kind of percutaneously to position the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method - Google Patents
It is a kind of percutaneously to position the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method Download PDFInfo
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- CN108703801A CN108703801A CN201810619691.1A CN201810619691A CN108703801A CN 108703801 A CN108703801 A CN 108703801A CN 201810619691 A CN201810619691 A CN 201810619691A CN 108703801 A CN108703801 A CN 108703801A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary 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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
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- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing devices of orthopaedics, including identical first lead screw of structure and the second lead screw, it is equipped with graduation mark on the lateral wall of first lead screw and the second lead screw, first lead screw and the second lead screw are connected by hinged ear, and hinged ear is connected by bindiny mechanism with the first lead screw, the one end of first lead screw and the second lead screw far from hinged ear is threaded with the first screw shell and the second screw shell respectively, and first screw shell and the second screw shell structure it is identical, the one end of first screw shell and the second screw shell far from hinged ear has been respectively fixedly connected with the first fixed link and the second fixed link, the lower surface of first fixed link is fixedly connected with locating piece, the lower surface of second fixed link, which corresponds to, offers through-hole at the position of locating piece.The present invention is easy to operate so that steel plate removal surgery minimizes wound while taking out steel plate.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of percutaneous positioning minimally invasive internal fixation steel plate screw of orthopaedics
Withdrawing device and method.
Background technology
Fracture is that the integrality of phalanges and continuity are interrupted.It is apparent for shifting at present, need row open reduction and Kirschner wire fixation
Patient is usually to carry out replacement and fixation to the bone block of fracture site by steel plate, screw so that the bone block of dislocation is in steel plate spiral shell
It is closely joined together under the action of nail system, passes through prolonged postoperative growth later, the bone block of fracture grows new bone
Scab heals into together again.It generally requires to take out inside-fixture between Ineffective internal fixation 1-2, to avoid rejection etc..
Traditional steel plate removal surgery needs to cut the length that skin ranges are approximately equal to steel plate, same causing suffering to patient
When can also increase wound and extend patient's later stage restore the required time.
Invention content
The purpose of the present invention is to solve prior art light plate removal surgeries can also while causing suffering to patient
The problem of increasing wound and extending patient's recovery time in later stage, and the percutaneous positioning minimally invasive internal fixation steel plate spiral shell of orthopaedics of one kind proposed
Follow closely withdrawing device and method.
To achieve the goals above, present invention employs following technical solutions：
The minimally invasive internal fixation steel plate screw withdrawing device of the percutaneous positioning orthopaedics of one kind and method, including structure are first identical
Graduation mark, first lead screw and second are equipped on the lateral wall of bar and the second lead screw, first lead screw and the second lead screw
Lead screw is connected by hinged ear, and hinged ear is connected by bindiny mechanism with the first lead screw, first lead screw and second
The one end of lead screw far from hinged ear is threaded with the first screw shell and the second screw shell respectively, and the first screw shell and
The structure of second screw shell is identical, and the one end of first screw shell and the second screw shell far from hinged ear is fixed respectively
It is connected with the first fixed link and the second fixed link, the lower surface of first fixed link is fixedly connected with locating piece, and described second
The lower surface of fixed link corresponds to and offers through-hole at the position of locating piece, and the upper surface of second fixed link is fixedly connected with admittedly
Fixed board, the fixed plate offer the first sliding groove, are slidably connected in the first sliding groove on the side wall far from the second screw shell
There are the first sliding block to match with the first sliding groove, first sliding block to offer limiting slot close to the side of the first sliding groove slot bottom,
Screw is inserted in the limiting slot, the slot bottom of the first sliding groove offers multiple equally distributed threaded holes, and threaded hole
Match with screw, the one end of the screw far from limiting slot passes through one of threaded hole, and screw connects with threaded hole screw thread
It connects, the side of first sliding block far from the first sliding groove slot bottom is fixedly connected with micromotor, and the output end of micromotor is logical
It crosses shaft coupling and is connected with screwdriver, and the cutter head of screwdriver is magnetic, the screwdriver is arranged across through-hole.
Preferably, the bindiny mechanism includes fixed block, and the fixed block is fixedly connected on the bottom of hinged ear, and described
The upper surface of one lead screw offer with the matched mounting groove of fixed block, and the lower surface of fixed block and the slot bottom of mounting groove offset,
Side of the fixed block far from the first fixed link offers card slot, and the side wall of the mounting groove corresponds to be opened up at the position of card slot
There are sliding groove, the slot bottom of the card slot to be fixedly connected with spring, the other end of the spring is fixedly connected with and pocket matches
Fixture block, and fixture block is slidably connected with card slot, the one end of the fixture block far from spring passes through the notch of card slot and extends to sliding groove
It is interior, and fixture block is slidably connected with sliding groove, is slidably connected in the sliding groove and the matched movable block of sliding groove, the movement
Side of the block far from fixture block is rotatably connected to threaded rod, and the other end of the threaded rod runs through the slot bottom of sliding groove and extends to it
Outside, and threaded rod is threadedly coupled with the slot bottom of sliding groove.
Preferably, the one end of first lead screw and the second lead screw far from hinged ear has been fixedly connected with convex block, described convex
The lateral wall of block is rotatably connected to bearing, opens up that there are two phases on the inner wall of first screw shell and the second screw shell
Symmetrical second sliding slot, the lateral wall of the bearing be fixedly connected there are two with matched second sliding block of second sliding slot, and second
Sliding block is slidably connected with corresponding second sliding slot.
Preferably, the lower surface of the locating piece offers ball grooves, is equipped with ball in the ball grooves, the ball is remote
One end from ball grooves slot bottom passes through the notch of ball grooves and extends outwardly.
Preferably, third sliding slot, the lateral wall of the movable block are offered in the both sides opposing sidewalls of the sliding groove
On be fixedly connected there are two with the matched third sliding block of third sliding slot, and third sliding block is slidably connected with corresponding third sliding slot.
Preferably, the one end of the threaded rod far from movable block is fixedly connected with handle.
Preferably, a mark line is made in patient skin, is open on the skin of label line position, positioning will be connected with
First fixed link of block is inserted into the opening on skin, makes locating piece along surface of steel plate sliding feed, locating piece slides into steel plate
When in the screw hole where screw, locating piece will be unable to feed, and reads the position of the first lead screw high scale line at this time, passes through adjusting
The distance between first lead screw and the first screw shell repeat aforesaid operations, to record the position on steel plate where all screws
It sets, by being connected with the micromotor of screwdriver in the second fixed link, to take out the screw on steel plate.
Compared with prior art, the present invention provides a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing devices of orthopaedics
And method, have following advantageous effect：
1, this percutaneously positions the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method, by the way that the first lead screw, the is arranged
Two lead screws, the first screw shell, the second screw shell, the first fixed link, the second fixed link, locating piece, micromotor and screw
Knife makes a mark line in patient skin, is open on the skin of label line position, will be connected with the first of locating piece and fixes
Bar is inserted into the opening on skin, makes locating piece along surface of steel plate sliding feed, locating piece slides into the spiral shell where steel plate screw
When in nail hole, locating piece will be unable to feed, and reads the number of division of the first lead screw high scale line at this time, is recorded, pass through adjusting
The distance between first lead screw and the first screw shell repeat aforesaid operations, to record the position on steel plate where all screws
Set, adjust the distance between the second lead screw and the second screw shell, be adjusted to record number of division it is identical, start be connected with spiral shell
The micromotor of silk knife, screwdriver is magnetic, to take out the screw on steel plate so that steel plate removal surgery is taking out the same of steel plate
When wound is minimized.
2, this percutaneously positions the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method, by the way that the first lead screw, the is arranged
Two lead screws, hinged ear, fixed block, card slot, sliding groove, spring, fixture block, movable block and threaded rod rotate threaded rod, drive screw thread
The movable block of bar rotation connection is slided towards the notch direction of sliding groove, is press-connected the fixture block of spring, is made fixture block towards card
The slot bottom direction of slot is slided, when fixture block sliding is detached from sliding groove, you can quickly detach the first lead screw and the second lead screw, press
The dynamic fixture block for being connected with spring, the fixed block for being connected with hinged ear is placed in the mounting groove of the first lead screw, passes through of spring
Fixture block is sprung into sliding groove and completes to be clamped, you can is quickly attached the first lead screw and the second lead screw, facilitate first by power
Installation between lead screw and the second lead screw and dismounting.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, present invention operation
It is convenient so that steel plate removal surgery minimizes wound while taking out steel plate.
Description of the drawings
Fig. 1 is a kind of percutaneous knot for positioning the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method proposed by the present invention
Structure schematic diagram；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the enlarged drawing of part B in Fig. 1；
Fig. 4 is the enlarged drawing of C portion in Fig. 1.
In figure：1 first lead screw, 2 second lead screws, 3 hinged ears, 4 first screw shells, 5 second screw shells, 6 first are consolidated
It is fixed pole, 7 second more constant bars, 8 locating pieces, 9 fixed plates, 10 the first sliding grooves, 11 first sliding blocks, 12 limiting slots, 13 screws, 14 micro-
Type motor, 15 screwdrivers, 16 fixed blocks, 17 card slots, 18 sliding grooves, 19 springs, 20 fixture blocks, 21 movable blocks, 22 threaded rods, 23
Convex block, 24 second sliding slots, 25 second sliding blocks, 26 balls, 27 third sliding slots, 28 third sliding blocks, 29 handles.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Referring to Fig.1-4, a kind of minimally invasive internal fixation steel plate screw withdrawing device of percutaneous positioning orthopaedics and method, including structure phase
It is equipped with graduation mark, the first lead screw 1 on the lateral wall of same the first lead screw 1 and the second lead screw 2, the first lead screw 1 and the second lead screw 2
It is connected by hinged ear 3 with the second lead screw 2, and hinged ear 3 is connected by bindiny mechanism with the first lead screw 1, the first lead screw 1
It is threaded with the first screw shell 4 and the second screw shell 5, and first respectively with second one end of lead screw 2 far from hinged ear 3
Screw shell 4 is identical with the structure of the second screw shell 5, and the first screw shell 4 and the second screw shell 5 are far from hinged ear 3
One end has been respectively fixedly connected with the first fixed link 6 and the second fixed link 7, and the lower surface of the first fixed link 6 is fixedly connected with positioning
Block 8, the lower surface of the second fixed link 7 correspond to and offer through-hole at the position of locating piece 8, and the upper surface of the second fixed link 7 is fixed
It is connected with fixed plate 9, fixed plate 9 offers the first sliding groove 10, slided in the first sliding groove 10 on the side wall far from the second screw shell 5
Dynamic to be connected with the first sliding block 11 to match with the first sliding groove 10, the first sliding block 11 is opened up close to the side of 10 slot bottom of the first sliding groove
There is limiting slot 12, screw 13 is inserted in limiting slot 12, the slot bottom of the first sliding groove 10 offers multiple equally distributed threaded holes,
And threaded hole matches with screw 13, the one end of screw 13 far from limiting slot 12 passes through one of threaded hole, and screw 13 with
Threaded hole is threadedly coupled, and side of first sliding block 11 far from 10 slot bottom of the first sliding groove is fixedly connected with micromotor 14, and miniature
The output end of motor 14 is connected with screwdriver 15 by shaft coupling, and the cutter head of screwdriver 15 is magnetic, and screwdriver 15 passes through logical
Hole is arranged, and a mark line is made in patient skin, is open on the skin of label line position, will be connected with the of locating piece 8
One fixed link 6 is inserted into the opening on skin, makes locating piece 8 along surface of steel plate sliding feed, locating piece 8 slides into steel plate screw
When in the screw hole at place, locating piece 8 will be unable to feed, and reads the number of division of 1 high scale line of the first lead screw at this time, is remembered
Record repeats aforesaid operations, owns on steel plate to record by adjusting the distance between the first lead screw 1 and the first screw shell 4
Position where screw adjusts the distance between the second lead screw 2 and the second screw shell 5, is adjusted to the number of division phase with record
Together, start the micromotor 14 for being connected with screwdriver 15, screwdriver 15 is magnetic, to take out the screw on steel plate so that steel
Plate removal surgery minimizes wound while taking out steel plate.
Bindiny mechanism includes fixed block 16, and fixed block 16 is fixedly connected on the bottom of hinged ear 3, the upper table of the first lead screw 1
Face offer with 16 matched mounting groove of fixed block, and the lower surface of fixed block 16 and the slot bottom of mounting groove offset, fixed block 16
Side far from the first fixed link 6 offers card slot 17, and the side wall of mounting groove corresponds to and offers sliding groove at the position of card slot 17
18, the slot bottom of card slot 17 is fixedly connected with spring 19, and the other end of spring 19 is fixedly connected with and 17 matched fixture block of card slot
20, and fixture block 20 is slidably connected with card slot 17, the one end of fixture block 20 far from spring 19 passes through the notch of card slot 17 and extends to cunning
In dynamic slot 18, and fixture block 20 is slidably connected with sliding groove 18, is slidably connected in sliding groove 18 and 18 matched movement of sliding groove
Block 21, side of the movable block 21 far from fixture block 20 are rotatably connected to threaded rod 22, and the other end of threaded rod 22 runs through sliding groove 18
Slot bottom and extend to its outside, and threaded rod 22 is threadedly coupled with the slot bottom of sliding groove 18, rotation threaded rod 22, drive screw thread
The movable block 21 that bar 22 is rotatablely connected is slided towards the notch direction of sliding groove 18, is press-connected the fixture block 20 of spring 19, is made
Fixture block 20 is slided towards the slot bottom direction of card slot 17, when the sliding of fixture block 20 is detached from sliding groove 18, you can quickly by first
Bar 1 and the separation of the second lead screw 2, press the fixture block 20 for being connected with spring 19, the fixed block 16 for being connected with hinged ear 3 are placed in first
In the mounting groove of lead screw 1, by the tension of spring 19, fixture block 20 is sprung into and completes clamping in sliding groove 18, you can quickly by the
One lead screw 1 and the second lead screw 2 are attached, and facilitate the installation and dismounting between the first lead screw 1 and the second lead screw 2.
First lead screw 1 and second one end of lead screw 2 far from hinged ear 3 have been fixedly connected with convex block 23, the outside of convex block 23
Wall is rotatably connected to bearing, opens up that there are two symmetrical second on the inner wall of the first screw shell 4 and the second screw shell 5
Sliding slot 24, the lateral wall of bearing be fixedly connected there are two with 24 matched second sliding block 25 of second sliding slot, and the second sliding block 25 with
Corresponding second sliding slot 24 is slidably connected, and prevents the first lead screw 1 and the first screw shell 4 and the second lead screw 2 and the second thread bush
Cylinder 5 is detached from when adjusting.
The lower surface of locating piece 8 offers ball grooves, is equipped with ball 26 in ball grooves, ball 26 is far from ball grooves slot bottom
One end passes through the notch of ball grooves and extends outwardly, and reduces frictional force of the locating piece 8 when surface of steel plate moves.
Third sliding slot 27 is offered in the both sides opposing sidewalls of sliding groove 18, is fixedly connected on the lateral wall of movable block 21
There are two with 27 matched third sliding block 28 of third sliding slot, and third sliding block 28 is slidably connected with corresponding third sliding slot 27, anti-
Only movable block 21 is detached from sliding groove 18.
The one end of threaded rod 22 far from movable block 21 is fixedly connected with handle 29, facilitates the rotation of control threaded rod 22.
A mark line is made in patient skin, is open on the skin of label line position, the of locating piece 8 will be connected with
One fixed link 6 is inserted into the opening on skin, makes locating piece 8 along surface of steel plate sliding feed, locating piece 8 slides into steel plate screw
Screw hole in when, locating piece 8 will be unable to feed, and read the position of 1 high scale line of the first lead screw at this time, pass through adjust first
The distance between lead screw 1 and the first screw shell 4 repeat to operate, to record have on steel plate screw position, by the
The micromotor 14 of screwdriver 15 is connected in two fixed links 7, to take out the screw on steel plate.
In the present invention, a mark line is made in patient skin, is open on the skin of label line position, it is fixed to be connected with
First fixed link 6 of position block 8 is inserted into the opening on skin, makes locating piece 8 along surface of steel plate sliding feed, and locating piece 8 slides
When in the screw hole where steel plate screw, locating piece 8 will be unable to feed, and read the scale of 1 high scale line of the first lead screw at this time
Number, is recorded, and by adjusting the distance between the first lead screw 1 and the first screw shell 4, aforesaid operations is repeated, to record
Position on steel plate where all screws adjusts the distance between the second lead screw 2 and the second screw shell 5, is adjusted to and records
Number of division it is identical, start and be connected with the micromotor 14 of screwdriver 15, screwdriver 15 is magnetic, to take out the spiral shell on steel plate
Nail so that steel plate removal surgery minimizes wound while taking out steel plate.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics, including identical first lead screw (1) of structure and
Second lead screw (2), which is characterized in that be equipped with graduation mark on the lateral wall of first lead screw (1) and the second lead screw (2), institute
It states the first lead screw (1) with the second lead screw (2) to be connected by hinged ear (3), and hinged ear (3) passes through bindiny mechanism and first
Bar (1) is connected, and the one end of first lead screw (1) and the second lead screw (2) far from hinged ear (3) is threaded with first respectively
Screw shell (4) and the second screw shell (5), and the first screw shell (4) is identical with the structure of the second screw shell (5), institute
It states the one end of the first screw shell (4) and the second screw shell (5) far from hinged ear (3) and has been respectively fixedly connected with the first fixed link
(6) and the second fixed link (7), the lower surface of first fixed link (6) are fixedly connected with locating piece (8), and described second fixes
The lower surface of bar (7) corresponds to and offers through-hole at the positions of locating piece (8), and the upper surface of second fixed link (7), which is fixed, to be connected
It is connected to fixed plate (9), the fixed plate (9) offers the first sliding groove (10) on the side wall far from the second screw shell (5), described
The first sliding block (11) to match with the first sliding groove (10) is slidably connected in the first sliding groove (10), first sliding block (11) is leaned on
The side of nearly the first sliding groove (10) slot bottom offers limiting slot (12), and screw (13) is inserted in the limiting slot (12), described
The slot bottom of the first sliding groove (10) offers multiple equally distributed threaded holes, and threaded hole matches with screw (13), the spiral shell
The one end of nail (13) far from limiting slot (12) passes through one of threaded hole, and screw (13) is threadedly coupled with threaded hole, described
Side of first sliding block (11) far from the first sliding groove (10) slot bottom is fixedly connected with micromotor (14), and micromotor (14)
Output end is connected with screwdriver (15) by shaft coupling, and the cutter head of screwdriver (15) is magnetic, and the screwdriver (15) passes through
Through-hole is arranged.
2. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics according to claim 1, feature exist
Include fixed block (16) in, the bindiny mechanism, the fixed block (16) is fixedly connected on the bottom of hinged ear (3), and described
The upper surface of one lead screw (1) offers and fixed block (16) matched mounting groove, and the lower surface of fixed block (16) and mounting groove
Slot bottom offset, the fixed block (16) offers card slot (17), the side of the mounting groove far from the side of the first fixed link (6)
Wall corresponds to and offers sliding groove (18) at the positions of card slot (17), and the slot bottom of the card slot (17) is fixedly connected with spring (19),
The other end of the spring (19) is fixedly connected with and card slot (17) matched fixture block (20), and fixture block (20) and card slot (17) are sliding
Dynamic connection, the one end of the fixture block (20) far from spring (19) pass through the notch of card slot (17) and extend in sliding groove (18),
And fixture block (20) is slidably connected with sliding groove (18), is slidably connected in the sliding groove (18) and sliding groove (18) matched shifting
Motion block (21), side of the movable block (21) far from fixture block (20) are rotatably connected to threaded rod (22), the threaded rod (22)
The other end through sliding groove (18) slot bottom and extend to its outside, and the slot bottom screw thread of threaded rod (22) and sliding groove (18)
Connection.
3. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics according to claim 1, feature exist
In the one end of first lead screw (1) and the second lead screw (2) far from hinged ear (3) has been fixedly connected with convex block (23), described convex
The lateral wall of block (23) is rotatably connected to bearing, is opened on the inner wall of first screw shell (4) and the second screw shell (5)
If there are two symmetrical second sliding slot (24), the lateral wall of the bearing is fixedly connected with that there are two match with second sliding slot (24)
The second sliding block (25), and the second sliding block (25) is slidably connected with corresponding second sliding slot (24).
4. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics according to claim 1, feature exist
In the lower surface of the locating piece (8) offers ball grooves, ball (26) is equipped in the ball grooves, the ball (26) is remote
One end from ball grooves slot bottom passes through the notch of ball grooves and extends outwardly.
5. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics according to claim 2, feature exist
In offering third sliding slot (27), the lateral wall of the movable block (21) in the both sides opposing sidewalls of the sliding groove (18)
On be fixedly connected there are two with the matched third sliding block (28) of third sliding slot (27), and third sliding block (28) and corresponding third cunning
Slot (27) is slidably connected.
6. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics according to claim 2, feature exist
In the one end of the threaded rod (22) far from movable block (21) is fixedly connected with handle (29).
7. a kind of percutaneous positioning minimally invasive internal fixation steel plate screw removing method of orthopaedics according to claim 1, feature exist
In, make a mark line in patient skin, label line position skin on be open, the first of locating piece (8) will be connected with
Fixed link (6) is inserted into the opening on skin, makes locating piece (8) along surface of steel plate sliding feed, locating piece (8) slides into steel plate
When in the screw hole where screw, locating piece (8) will be unable to feed, and read the position of the first lead screw (1) high scale line at this time, lead to
The distance between the first lead screw (1) and the first screw shell (4) are overregulated, aforesaid operations are repeated, is owned on steel plate to record
Position where screw, by being connected with the micromotor (14) of screwdriver (15) in the second fixed link (7), to take out steel plate
On screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619691.1A CN108703801B (en) | 2018-06-15 | 2018-06-15 | A kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619691.1A CN108703801B (en) | 2018-06-15 | 2018-06-15 | A kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108703801A true CN108703801A (en) | 2018-10-26 |
| CN108703801B CN108703801B (en) | 2019-11-12 |
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| CN201810619691.1A Expired - Fee Related CN108703801B (en) | 2018-06-15 | 2018-06-15 | A kind of percutaneous positioning minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109742588A (en) * | 2018-12-29 | 2019-05-10 | 广州市译码电子科技有限公司 | A kind of data line being conveniently replaceable connector |
| CN109945959A (en) * | 2019-04-11 | 2019-06-28 | 广州快速交通建设有限公司 | A kind of shallow foundation hole overhead vehicle counts weight equipment |
| CN110226964A (en) * | 2019-07-09 | 2019-09-13 | 王海涛 | A kind of disassembly skeletal fixation instrument screw extractor |
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| CN207152646U (en) * | 2017-03-08 | 2018-03-30 | 孙正明 | A kind of safe and reliable Orthopeadic Surgery device for fetching nail |
| CN106821488A (en) * | 2017-04-07 | 2017-06-13 | 中国人民解放军总医院 | A kind of screw is fixed and takes out auxiliary sleeve |
| CN107874826A (en) * | 2017-12-07 | 2018-04-06 | 何启新 | It is a kind of percutaneously to position the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and its application method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109742588A (en) * | 2018-12-29 | 2019-05-10 | 广州市译码电子科技有限公司 | A kind of data line being conveniently replaceable connector |
| CN109945959A (en) * | 2019-04-11 | 2019-06-28 | 广州快速交通建设有限公司 | A kind of shallow foundation hole overhead vehicle counts weight equipment |
| CN110226964A (en) * | 2019-07-09 | 2019-09-13 | 王海涛 | A kind of disassembly skeletal fixation instrument screw extractor |
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