CN108210035B - A kind of fracture of calcaneus height Retracting repositioning device - Google Patents
A kind of fracture of calcaneus height Retracting repositioning device Download PDFInfo
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- CN108210035B CN108210035B CN201810129597.8A CN201810129597A CN108210035B CN 108210035 B CN108210035 B CN 108210035B CN 201810129597 A CN201810129597 A CN 201810129597A CN 108210035 B CN108210035 B CN 108210035B
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
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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
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Abstract
A kind of fracture of calcaneus height Retracting repositioning device, belongs to orthopedic medical device technical field, for carrying out Retracting repositioning to fracture of calcaneus height.Its technical solution is: the fixed steel needle of metatarsal, nut bone fixes steel needle and passes through metatarsal in the horizontal direction respectively with bone fixation steel needle, nut bone and cuboid, calcaneum, the both ends of steel needle are located at the outside of bone two sides, the front end of two top fixed connecting rods is connected with the both ends of the fixed steel needle of metatarsal respectively, rear end is connected with the both ends of the fixed steel needle of nut bone respectively, the front end that two tops are fixedly connected with compensation linkage is connected with the both ends of the fixed steel needle of nut bone respectively, rear end is connected with the both ends with bone fixation steel needle respectively, the front end that two lower parts are fixedly connected with compensation linkage is connected with the both ends of the fixed steel needle of metatarsal respectively, rear end is connected with the both ends with bone fixation steel needle respectively.The configuration of the present invention is simple, easy to use, reset is reliable, wound is small, can restore calcaneum height and the calcaneum varus line of force simultaneously.
Description
Technical field
The present invention relates to the devices that a kind of pair of fracture of calcaneus height carries out Retracting repositioning, belong to orthopedic medical device technology neck
Domain.
Background technique
Fracture of calcaneus is the most common tarsal fracture, wherein intra-articular fracture account for about 75%, fracture of calcaneus mostly by falling,
Get injured by a fall or traffic accident cause, all intra-articular fractures all caused by axial stress, axial stress cause width of calcaneus increase,
Height decline (angle Bohler ' s becomes smaller) restores poor if dealing with improperly and can lead to foot function.Currently, for fracture of calcaneus
Operation plan is broadly divided into minimally invasive closed reduction internal fixation and two kinds of internal fixation, no matter takes which kind of technical side
Case, it is necessary to Yao Huifu width of calcaneus and height (restoring the angle normal Bohler ' s), correct the varus of calcaneum to line, rebuild away under
The anatomic form of joint posterior articular surface.
Current either closed reduction or open reduction, when restoring fracture of calcaneus height and calcaneum varus, usually
It is dialled using Kirschner wire sled, Schanz nail sled is dialled or manipulative reduction.But above several method should not be held when resetting, and merely with
Hand strength resets, and reset force is smaller, and cannot effectively be fixed temporarily after resetting, and patient often will remain multiple by unarmed
Position, but often because strength is not enough difficult to reach satisfied reset effect.Therefore, it develops for the reset for restoring fracture of calcaneus height
Instrument is very necessary.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of fracture of calcaneus height Retracting repositioning device, this height drawing
Restorer can restore calcaneum height and the calcaneum varus line of force by traction action, and can be fixed temporarily, and be conducive to minimally invasive kirschner
Interal fixation is fixed and cut to needle.
The technical solution for solving above-mentioned technical problem is:
A kind of fracture of calcaneus height Retracting repositioning device, it includes the fixed steel needle of metatarsal, the fixed steel needle of nut bone, with bone fixation steel
Needle, top fixed connecting rod, top is fixedly connected with compensation linkage, lower part is fixedly connected with compensation linkage, the fixed steel needle of metatarsal,
Nut bone is fixed steel needle and is placed with bone fixation steel needle horizontal parallel, and the fixed steel needle of metatarsal, nut bone fix steel needle and with bone fixation steel
The needle body of needle is axial vertical with the front-rear direction of foot, and the fixed steel needle of metatarsal, nut bone are fixed steel needle and distinguished with bone fixation steel needle
Metatarsal, nut bone and cuboid, calcaneum are passed through in the horizontal direction, and the both ends of steel needle are located at the outside of bone two sides, two tops
The front end of fixed connecting rod is connected in the two sides of metatarsal with the both ends of the fixed steel needle of metatarsal respectively, two top fixed connecting rods
Rear end be connected respectively at the both ends of the fixed steel needle of the two sides of nut bone and cuboid and nut bone, two tops are fixedly connected adjustable
The front end of pull rod is connected in the two sides of nut bone and cuboid with the both ends of the fixed steel needle of nut bone respectively, and two tops are fixedly connected can
The rear end of adjusting yoke is connected in the two sides of calcaneum with the both ends with bone fixation steel needle respectively, and two lower parts are fixedly connected adjustable
The front end for saving pull rod is connected in the two sides of metatarsal with the both ends of the fixed steel needle of metatarsal respectively, and two lower parts are fixedly connected adjustable
The rear end of pull rod is connected in the two sides of calcaneum with the both ends with bone fixation steel needle respectively.
Above-mentioned fracture of calcaneus height Retracting repositioning device, the top fixed connecting rod is by upper lantern ring, connecting rod, lock screw
The both ends for being connected to connecting rod are respectively welded in composition, two upper lantern rings, and the axis of two upper lantern rings is parallel, the axis of two upper lantern rings
Line is vertical with the axis of connecting rod, and the diameter of bore of two upper lantern rings fixes the outer of steel needle with the fixed steel needle of metatarsal and nut bone respectively
Diameter matches, and outer wall of the inner hole of two upper lantern rings respectively with the fixed steel needle of metatarsal and the fixed steel needle of nut bone is to be slidably matched, and two
Have the locking screw hole perpendicular to upper set ring axis on the tube wall of a upper lantern ring respectively, lock screw pass through locking screw hole respectively with plantar
Bone fixation steel needle and the fixed steel needle of nut bone hold out against connection.
Above-mentioned fracture of calcaneus height Retracting repositioning device, it includes upper press ring, pull-up that the top, which is fixedly connected with compensation linkage,
The screw-rod structure of bar, upper clamp nut and adjustment length, two upper press rings are respectively welded the both ends for being connected to upper connecting rod, on two
The axis of pressure ring is parallel, and the axis of two upper press rings and the axis of upper connecting rod are vertical, the diameter of bore of two upper press rings respectively with
The fixed steel needle of nut bone and match with the outer diameter of bone fixation steel needle, the inner hole of two upper press rings be respectively fitted over the fixed steel needle of nut bone and
With on bone fixation steel needle, nut bone fixes steel needle and has screw thread respectively with the both ends of bone fixation steel needle, and upper clamp nut is respectively fitted over
Nut bone is fixed steel needle and is connect with being threadedly engaged on bone fixation steel needle with steel needle, the inside of upper clamp nut and the outside of upper press ring
Surface is pressed against, and there is the screw-rod structure of adjustment length in the centre of upper connecting rod.
Above-mentioned fracture of calcaneus height Retracting repositioning device, it includes lower collar, drop-down that the lower part, which is fixedly connected with compensation linkage,
The both ends for being connected to lower pull rod are respectively welded in the screw-rod structure of bar, lock screw and adjustment length, two lower collars, and two are trapped
The axis of ring is parallel, and the axis of two lower collars is vertical with the axis of lower pull rod, the diameter of bore of two lower collars respectively with plantar
Bone fixation steel needle and match with the outer diameter of bone fixation steel needle, the inner hole of two lower collars respectively with the fixed steel needle of metatarsal and calcaneum
The outer wall of fixed steel needle is to be slidably matched, and has the locking screw hole perpendicular to ring axis of trapping on the tube wall of two lower collars respectively,
Lock screw is fixed steel needle with metatarsal respectively across locking screw hole and is held out against with bone fixation steel needle and connect, and there is tune in the centre of lower pull rod
Save the screw-rod structure of length.
The screw-rod structure of adjustment length among above-mentioned fracture of calcaneus height Retracting repositioning device, the upper connecting rod and lower pull rod
It is made of respectively two screw rods and buckle, upper connecting rod and lower pull rod are respectively bi-body structure, the opposing end surface of two body of pull rod
The upper screw hole having respectively along rod length direction, the thread rotary orientation of two opposite screw holes is on the contrary, two screw flight rotation directions
On the contrary, screw hole opposite with two matches connection respectively for one end of two screw rods, there is rotation direction phase at the inner hole both ends of buckle respectively
Anti- screw thread, the other end of two screw rods are threadedly coupled with the both ends of buckle respectively.
The beneficial effects of the present invention are:
The present invention uses Bilateral Symmetry fabricated structure, and three steel needles are each passed through metatarsal, nut bone and cuboid, calcaneum,
It is connected between them using connecting rod with pull rod, by the pressurization between metatarsal, nut bone and calcaneum and tenses acquisition calcaneum
Ideal length and the recovery calcaneum varus line of force, and calcaneum is driven to rotate, to restore calcaneum height.
The present invention is the pioneering of calcaneus fracture diaplasis instrument, have structure it is simple, it is easy to use, reset it is reliable, reset effect
The advantage that fruit is good, wound is small can restore calcaneum height and the calcaneum varus line of force, the calcaneum of part manipulative reduction difficulty simultaneously
Fracture, can obtain closed reduction by this restorer, to avoid open reduction, create advantageous item to carry out Minimally Invasive Surgery
Part.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is use state diagram of the invention；
Fig. 3 is the screw-rod structure schematic diagram of adjustment length.
Mark in figure as follows: the fixed steel needle 1 of metatarsal, nut bone fix steel needle 2, with bone fixation steel needle 3, top fixed connecting rod
4, top is fixedly connected with compensation linkage 5, lower part be fixedly connected compensation linkage 6, upper lantern ring 7, connecting rod 8, lock screw 9,
Upper press ring 10, upper connecting rod 11, upper clamp nut 12, lower collar 13, lower pull rod 14, screw rod 15, buckle 16, metatarsal 17, boat
Bone 18, cuboid 19, calcaneum 20.
Specific embodiment
The present invention by the fixed steel needle 1 of metatarsal, the fixed steel needle 2 of nut bone, with bone fixation steel needle 3, top fixed connecting rod 4, on
Portion is fixedly connected with compensation linkage 5, lower part is fixedly connected with the composition of compensation linkage 6.
Fig. 1,2 displays, the fixed steel needle 1 of metatarsal, nut bone are fixed steel needle 2 and are placed with 3 horizontal parallel of bone fixation steel needle, metatarsal
The fixed steel needle 2 of fixed steel needle 1, nut bone and axial vertical with the front-rear direction of foot with the needle body of bone fixation steel needle 3, metatarsal is fixed
The fixed steel needle 2 of steel needle 1, nut bone and passed through in the horizontal direction respectively with bone fixation steel needle 3 metatarsal 17, nut bone 18 and cuboid 19, with
Bone 20, the both ends of steel needle are located at the outside of bone two sides, for connecting top fixed connecting rod 4, top is fixedly connected can
Adjusting yoke 5 is fixedly connected with compensation linkage 6 with lower part.
Fig. 1,2 displays, the front end of two top fixed connecting rods 4 is respectively in the two sides of metatarsal 17 and the fixed steel needle 1 of metatarsal
Both ends be connected, the rear end of two top fixed connecting rods 4 is respectively in the fixed steel of the two sides of nut bone 18 and cuboid 19 and nut bone
The both ends of needle 2 are connected.
Fig. 1,2 displays, top fixed connecting rod 4 are made of upper lantern ring 7, connecting rod 8, lock screw 9.Two upper lantern rings 7
The both ends for being connected to 8 bars of connection are respectively welded, the axis of two upper lantern rings 7 is parallel, the axis and connecting rod 8 of two upper lantern rings 7
Axis it is vertical, the diameter of bores of the two upper lantern rings 7 outer diameter phase with the fixed steel needle 1 of metatarsal and the fixed steel needle 2 of nut bone respectively
Match, two upper lantern rings 7 are respectively fitted on the fixed steel needle 1 of metatarsal and the fixed steel needle 2 of nut bone, can be slided.The pipe of two upper lantern rings 7
There is the locking screw hole perpendicular to upper set ring axis on wall respectively, lock screw 9 passes through locking screw hole and fixes steel needle 1 with metatarsal respectively
Connection is held out against with the fixed steel needle 2 of nut bone.After holding out against, steel needle 1 and nut bone are fixed with metatarsal respectively in the both ends of top fixed connecting rod 4
Fixed steel needle 2 is fixedly connected, and fixes metatarsal 17 and the position of nut bone 18, cuboid 19.
Fig. 1,2 displays, two tops are fixedly connected with the front end of compensation linkage 5 respectively in the two sides of nut bone 18 and cuboid 19
It is connected with the both ends of the fixed steel needle 2 of nut bone, two tops are fixedly connected with the rear end of compensation linkage 5 respectively the two of calcaneum 20
Side is connected with the both ends with bone fixation steel needle 3.
Fig. 1,2 displays, it includes upper press ring 10, upper connecting rod 11,12 and of upper clamp nut that top, which is fixedly connected with compensation linkage 5,
The screw-rod structure of adjustment length.The both ends for being connected to upper connecting rod 11, the axis of two upper press rings 10 is respectively welded in two upper press rings 10
Line is parallel, and two upper press rings 10 are opposite with the fixed steel needle 2 of nut bone and with bone fixation steel needle 3 respectively, covers in fixed 2 He of steel needle of nut bone
With on bone fixation steel needle 3, there is screw thread at the fixed steel needle 2 of nut bone and the both ends with bone fixation steel needle 3 respectively, and upper clamp nut 12 is distinguished
It covers in the fixed steel needle 2 of nut bone and is connect with being threadedly engaged on bone fixation steel needle 3 with steel needle, the inside of upper clamp nut 12 and upper pressure
The outer surface of ring 10 is pressed against, and there is the screw-rod structure of adjustment length in the centre of upper connecting rod 11.
In use, being compressed upper press ring 10 to centre by upper clamp nut 12, the screw-rod structure of adjustment length can be adjusted
It is ideal long to obtain calcaneum 20 by the pull rod 11 between nut bone 18 and calcaneum 20 that extends or pressurize for the length of whole two sides upper connecting rod 11
Degree, asymmetry pressurization or the pull rod 11 for extending two sides can obtain the calcaneum varus line of force, reach 20 varus of calcaneum.
Fig. 1,2 displays, the front end that two lower parts are fixedly connected with compensation linkage 6 are solid in the two sides of metatarsal 17 and metatarsal respectively
The both ends for determining steel needle 1 are connected, and two lower parts are fixedly connected with the rear end of compensation linkage 6 two sides in calcaneum 20 and calcaneum respectively
The both ends of fixed steel needle 3 are connected.
Fig. 1,2 displays, it includes lower collar 13, lower pull rod 14, lock screw and adjusting that lower part, which is fixedly connected with compensation linkage 6,
The screw-rod structure of length.The both ends for being connected to lower pull rod 14 are respectively welded in two lower collars 13, and the axis of two lower collars 13 is flat
Row, the axis of two lower collars 13 is vertical with the axis of lower pull rod 14, and two lower collars 13 are respectively fitted over fixed 1 He of steel needle of metatarsal
With the both ends of bone fixation steel needle 3, lower collar 13 is to be slidably matched with the fixed steel needle 1 of metatarsal and with the outer wall of bone fixation steel needle 3, two
Have the locking screw hole perpendicular to ring axis of trapping on the tube wall of a lower collar 13 respectively, lock screw pass through locking screw hole respectively with
Metatarsal fixes steel needle 1 and holds out against connection with bone fixation steel needle 3, and there is the screw-rod structure of adjustment length in the centre of lower pull rod 14.
In use, the screw-rod structure of the adjustment length by the centre for tensing the lower pull rod 14 between metatarsal and calcaneum, makes
The fixed steel needle 2 of the nut bone that top between nut bone and calcaneum is fixedly connected with compensation linkage 5 to pass through nut bone 18 rotates, drive with
Bone 20 is rotated down, to restore 20 height of calcaneum.
Fig. 3 shows that the screw-rod structure of the adjustment length among upper connecting rod 11 and lower pull rod 14 is respectively by two 15 Hes of screw rod
Buckle 16 forms.Upper connecting rod 11 and lower pull rod 14 are respectively bi-body structure, have edge respectively on the opposing end surface of two body of pull rod
The screw hole in rod length direction, the thread rotary orientations of two opposite screw holes on the contrary, the thread rotary orientation of two screw rods 15 on the contrary, two
Screw hole opposite with two matches connection respectively for one end of screw rod 15, and there is oppositely oriented spiral shell at the inner hole both ends of buckle 16 respectively
Line, the other end of two screw rods 15 are threadedly coupled with the both ends of buckle 16 respectively.In use, rotation buckle 16, draws
The screw rod 15 of fixed 16 both ends of cylinder connection is screwed out or is screwed in simultaneously, extension or buckle 16, so that upper connecting rod 11 or lower pull rod
The effect for adjusting upper connecting rod 11 and lower 14 length of pull rod is played in 14 extended length or shortening, and then reaches and restore calcaneum height
With the purpose of the calcaneum varus line of force.
One embodiment of the present of invention is as follows:
The fixed steel needle 1 of metatarsal is diameter 2.5mm steel needle, and the fixed steel needle 2 of nut bone is diameter 2.5mm steel needle, with bone fixation steel
Needle 3 is diameter 3.0mm steel needle；Top fixed connecting rod, top be fixedly connected compensation linkage 4 be fixedly connected with lower part it is adjustable
Pull rod 5 is respectively diameter 4.0mm metallic rod.
Application method of the invention is as follows:
A. metatarsal is passed through in the horizontal direction by the fixed steel needle 1 of metatarsal, the fixed steel needle 2 of nut bone and with bone fixation steel needle 3 respectively
17, nut bone 18 and cuboid 19, calcaneum 20, the both ends of steel needle are located at the outside of bone two sides.
B. by the front end of two top fixed connecting rods 4 respectively at the both ends of the two sides of metatarsal 17 and the fixed steel needle 1 of metatarsal
It is connected, the rear end of two top fixed connecting rods 4 fixes the two of steel needle 2 in the two sides of nut bone 18 and cuboid 19 and nut bone respectively
End is connected, and tightens lock-screw 9.
C. two tops are fixedly connected with the front end of compensation linkage 5 respectively in the two sides and nut bone of nut bone 18 and cuboid 19
The both ends of fixed steel needle 2 are connected, two tops be fixedly connected the rear end of compensation linkage 5 respectively the two sides of calcaneum 20 with
The both ends of bone fixation steel needle 3 are connected, and tighten clamp nut 12.
D. the buckle 16 that two tops are fixedly connected among the upper connecting rod 11 of compensation linkage 5 is rotated, extends two
Top is fixedly connected with the length of compensation linkage 5, restores the normal length of calcaneum 20.It, can be right when turning up there are calcaneum 20
Two upper lateral parts are fixedly connected with compensation linkage 5 to be made calcaneum 20 turn up to be corrected using different extending lengths.
E. two lower parts are fixedly connected with the front end of compensation linkage 6 respectively in the two sides of metatarsal 17 and the fixed steel needle of metatarsal
1 both ends are connected, and two lower parts are fixedly connected with the rear end of compensation linkage 6 respectively in the two sides of calcaneum 20 and with bone fixation steel
The both ends of needle 3 are connected, and tighten lock screw.
F. the buckle 16 that two lower parts are fixedly connected among the lower pull rod 14 of compensation linkage 6 is rotated, shortens two
Lower part is fixedly connected with the length of compensation linkage 6, make the top between nut bone 18 and calcaneum 20 be fixedly connected compensation linkage 5 with
It is rotated across the fixed steel needle 2 of the nut bone of nut bone 18, calcaneum 20 is driven to be rotated down, to restore 20 height of calcaneum, reach reset.
G. after the completion of calcaneum 20 resets, using minimally invasive Kirschner wire fixation.
Claims (5)
1. a kind of fracture of calcaneus height Retracting repositioning device, it is characterised in that: it includes metatarsal fixed steel needle (1), the fixed steel of nut bone
Needle (2) is fixedly connected with compensation linkage (5), the fixed company in lower part with bone fixation steel needle (3), top fixed connecting rod (4), top
It connecing compensation linkage (6), metatarsal fixed steel needle (1), nut bone are fixed steel needle (2) and are placed with bone fixation steel needle (3) horizontal parallel,
Metatarsal fixed steel needle (1), nut bone fixed steel needle (2) and the axial front-rear direction with foot of needle body with bone fixation steel needle (3) hang down
Directly, metatarsal fixed steel needle (1), nut bone fix steel needle (2) and pass through metatarsal in the horizontal direction respectively with bone fixation steel needle (3)
(17), nut bone (18) and cuboid (19), calcaneum (20), the both ends of steel needle are located at the outside of bone two sides, and two tops are solid
The front end for determining connecting rod (4) is connected in the two sides of metatarsal (17) with the both ends of metatarsal fixed steel needle (1) respectively, and two tops are solid
The rear end for determining connecting rod (4) is connected in the two sides of nut bone (18) and cuboid (19) with the both ends of nut bone fixed steel needle (2) respectively,
Two tops are fixedly connected with the front end of compensation linkage (5) respectively in the two sides of nut bone (18) and cuboid (19) and the fixed steel of nut bone
The both ends of needle (2) are connected, two tops be fixedly connected the rear end of compensation linkage (5) respectively the two sides of calcaneum (20) with
The both ends of bone fixation steel needle (3) are connected, and two lower parts are fixedly connected with the front end of compensation linkage (6) respectively in metatarsal (17)
The both ends of two sides and metatarsal fixed steel needle (1) are connected, two lower parts be fixedly connected the rear end of compensation linkage (6) respectively with
The two sides of bone (20) are connected with the both ends with bone fixation steel needle (3).
2. fracture of calcaneus height Retracting repositioning device according to claim 1, it is characterised in that: the top fixed connecting rod
(4) it is made of upper lantern ring (7), connecting rod (8), lock screw (9), two upper lantern ring (7) are respectively welded and are connected to connecting rod (8)
Both ends, the axis of two upper lantern ring (7) are parallel, and the axis of two upper lantern ring (7) are vertical with the axis of connecting rod (8), two
Outer diameter of the diameter of bore of upper lantern ring (7) respectively with metatarsal fixed steel needle (1) and nut bone fixed steel needle (2) matches, on two
The inner hole of lantern ring (7) is respectively to be slidably matched with the outer wall of metatarsal fixed steel needle (1) and nut bone fixed steel needle (2), two upper sets
Have the locking screw hole perpendicular to upper set ring axis on the tube wall of ring (7) respectively, lock screw (9) pass through locking screw hole respectively with plantar
Bone fixation steel needle (1) and nut bone fixed steel needle (2) hold out against connection.
3. fracture of calcaneus height Retracting repositioning device according to claim 1, it is characterised in that: the top is fixedly connected can
Adjusting yoke (5) include upper press ring (10), upper connecting rod (11), upper clamp nut (12) and adjustment length screw-rod structure, two
The both ends for being connected to upper connecting rod (11) are respectively welded in upper press ring (10), and the axis of two upper press rings (10) is parallel, two upper press rings
(10) axis is vertical with the axis of upper connecting rod (11), and the diameter of bore of two upper press rings (10) fixes steel needle with nut bone respectively
(2) and with the outer diameter of bone fixation steel needle (3) match, it is fixed steel needle (2) that the inner hole of two upper press rings (10) is respectively fitted over nut bone
With on bone fixation steel needle (3), nut bone fixed steel needle (2) and there are screw thread, upper compression spiral shell respectively with the both ends of bone fixation steel needle (3)
Female (12) are respectively fitted over nut bone fixed steel needle (2) and connect with being threadedly engaged on bone fixation steel needle (3) with steel needle, upper clamp nut
(12) outer surface of inside and upper press ring (10) is pressed against, and there is the screw rod knot of adjustment length in the centre of upper connecting rod (11)
Structure.
4. fracture of calcaneus height Retracting repositioning device according to claim 3, it is characterised in that: the lower part is fixedly connected can
Adjusting yoke (6) includes the screw-rod structure of lower collar (13), lower pull rod (14), lock screw and adjustment length, two lower collars
(13) both ends for being connected to lower pull rod (14) are respectively welded, the axis of two lower collars (13) is parallel, two lower collars (13)
Axis is vertical with the axis of lower pull rod (14), the diameter of bore of two lower collars (13) respectively with metatarsal fixed steel needle (1) and with
The outer diameter of bone fixation steel needle (3) matches, and the inner hole of two lower collars (13) is respectively with metatarsal fixed steel needle (1) and with bone fixation
The outer wall of steel needle (3) is to be slidably matched, and has the locking spiral shell perpendicular to ring axis of trapping on the tube wall of two lower collars (13) respectively
Hole, lock screw are fixed steel needle (1) with metatarsal respectively across locking screw hole and are held out against with bone fixation steel needle (3) and connect, lower pull rod
(14) there is the screw-rod structure of adjustment length in centre.
5. fracture of calcaneus height Retracting repositioning device according to claim 4, it is characterised in that: the upper connecting rod (11) and under
The screw-rod structure of the intermediate adjustment length of pull rod (14) is made of two screw rods (15) and buckle (16) respectively, upper connecting rod
(11) and lower pull rod (14) is respectively bi-body structure, there is the spiral shell along rod length direction on the opposing end surface of two body of pull rod respectively
Hole, the thread rotary orientations of two opposite screw holes on the contrary, two screw rods (15) thread rotary orientation on the contrary, two screw rods (15) one end point
Screw hole not opposite with two matches connection, and there are oppositely oriented screw thread, two screw rods in the inner hole both ends of buckle (16) respectively
(15) the other end is threadedly coupled with the both ends of buckle (16) respectively.
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| CN201810129597.8A CN108210035B (en) | 2018-02-08 | 2018-02-08 | A kind of fracture of calcaneus height Retracting repositioning device |
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| CN201810129597.8A CN108210035B (en) | 2018-02-08 | 2018-02-08 | A kind of fracture of calcaneus height Retracting repositioning device |
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| CN108210035B true CN108210035B (en) | 2019-11-19 |
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| CN109758224B (en) * | 2019-02-20 | 2023-10-03 | 绍兴市上虞区中医医院 | Electric traction prying and poking restorer for calcaneal fracture |
| CN111035491B (en) * | 2020-01-06 | 2022-05-17 | 林雪林 | Spinal column auxiliary treatment device for spinal surgery |
| CN113506680B (en) * | 2021-07-21 | 2023-02-28 | 保定天威集团特变电气有限公司 | Layered voltage regulating coil fixing method |
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| EP0685206A1 (en) * | 1994-05-26 | 1995-12-06 | Waldemar Link (GmbH & Co.) | Finger bone fixator |
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| CN103961167A (en) * | 2014-05-29 | 2014-08-06 | 张英泽 | Calcaneus fracture height repositor |
| CN208756129U (en) * | 2018-02-08 | 2019-04-19 | 河北医科大学第三医院 | A kind of fracture of calcaneus height Retracting repositioning device |
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| EP0685206A1 (en) * | 1994-05-26 | 1995-12-06 | Waldemar Link (GmbH & Co.) | Finger bone fixator |
| CN2471300Y (en) * | 2001-03-16 | 2002-01-16 | 李新军 | Reposition fixater for calcaneum fracture |
| CN2770594Y (en) * | 2005-02-18 | 2006-04-12 | 王汉林 | Foot orthopedic external fixer |
| CN201558129U (en) * | 2009-06-19 | 2010-08-25 | 南京医科大学附属南京第一医院 | Special wound retractor for subtalar minor arthroscopy operation |
| CN201668482U (en) * | 2010-05-07 | 2010-12-15 | 无锡市中医医院 | Calcaneus bone fracture adjustment type reduction fixing bracket |
| CN103961167A (en) * | 2014-05-29 | 2014-08-06 | 张英泽 | Calcaneus fracture height repositor |
| CN208756129U (en) * | 2018-02-08 | 2019-04-19 | 河北医科大学第三医院 | A kind of fracture of calcaneus height Retracting repositioning device |
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| Publication number | Publication date |
|---|---|
| CN108210035A (en) | 2018-06-29 |
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