CN108210035A - 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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- CN108210035A CN108210035A CN201810129597.8A CN201810129597A CN108210035A CN 108210035 A CN108210035 A CN 108210035A CN 201810129597 A CN201810129597 A CN 201810129597A CN 108210035 A CN108210035 A CN 108210035A
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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：Metatarsal fixes draw point, nut bone fixes draw point and passes through metatarsal in the horizontal direction respectively with bone fixation draw point, nut bone and cuboid, calcaneum, the both ends of draw point are located at the outside of bone both sides respectively, the both ends that draw point is fixed in the front end of two top fixed connecting rods with metatarsal respectively are connected, the both ends that draw point is fixed in rear end with nut bone respectively are connected, two tops are fixedly connected with both ends of the front end of compensation linkage respectively with nut bone fixation draw point and are connected, rear end is connected respectively with the both ends of bone fixation draw point, two lower parts are fixedly connected with both ends of the front end of compensation linkage respectively with metatarsal fixation draw point and are connected, rear end is connected respectively with the both ends of bone fixation draw point.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 a kind of devices that Retracting repositioning is carried out to fracture of calcaneus height, belong to orthopedic medical device technology neck
Domain.
Background technology
Fracture of calcaneus is 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,
Highly decline（Bohler ' s angles become smaller）If dealing with improperly can cause foot function to restore poor.At present, for fracture of calcaneus
Operation plan is broadly divided into two kinds of minimally invasive closed reduction internal fixation and internal fixation, no matter takes which kind of technical side
Case, it is necessary to restore width of calcaneus and height（Restore normal Bohler ' s angles）, correct calcaneum varus 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 sleds are dialled or manipulative reduction.But Yi Shang several method reset when should not hold, and merely with
Hand strength resets, and reset force is smaller, and cannot be effectively 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.
Invention content
The technical problems to be solved by the invention are 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, and can be fixed temporarily by traction action, be conducive to minimally invasive kirschner
Interal fixation is fixed and cut to needle.
Solving the technical solution of above-mentioned technical problem is：
A kind of fracture of calcaneus height Retracting repositioning device, it include metatarsal fix draw point, nut bone fix draw point, with bone fixation draw point,
Top fixed connecting rod, top are fixedly connected with compensation linkage, lower part is fixedly connected with compensation linkage, and metatarsal fixes draw point, boat
It bone fixation draw point and is placed with bone fixation draw point horizontal parallel, metatarsal fixes draw point, nut bone fixes draw point and with bone fixation draw point
Needle body it is axial vertical with the front-rear direction of foot, metatarsal fixes draw point, nut bone fixation draw point and exists respectively with bone fixation draw point
Horizontal direction passes through metatarsal, nut bone and cuboid, calcaneum, and the both ends of draw point are located at the outside of bone both sides respectively, and two tops are consolidated
Determine the front end of connecting rod and fix with metatarsal the both ends of draw point in the both sides of metatarsal respectively to be connected, two top fixed connecting rods
Rear end is connected respectively in the both sides of nut bone and cuboid with the both ends of nut bone fixation draw point, and two tops are fixedly connected with adjustable drawing
The front end of bar is connected respectively in the both sides of nut bone and cuboid with the both ends of nut bone fixation draw point, and two tops are fixedly connected adjustable
The rear end of section pull rod is connected respectively in the both sides of calcaneum with the both ends of bone fixation draw point, and two lower parts are fixedly connected adjustable
The front end of pull rod is connected respectively in the both sides of metatarsal with the both ends of metatarsal fixation draw point, and two lower parts are fixedly connected with adjustable drawing
The rear end of bar is connected respectively in the both sides of calcaneum with the both ends of bone fixation draw point.
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 draw point with metatarsal respectively and nut bone fixes the outer of draw point
Diameter matches, and it is to be slidably matched that the endoporus of two upper lantern rings fixes draw point and the outer wall of nut bone fixation draw point with metatarsal respectively, and two
Have respectively on the tube wall of a upper lantern ring perpendicular to it is upper set ring axis locking screw hole, lock screw pass through locking screw hole respectively with plantar
Bone fixation draw point and nut bone fix draw point and hold out against connection.
Above-mentioned fracture of calcaneus height Retracting repositioning device, the top are fixedly connected with compensation linkage and include upper press ring, pull-up
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 is vertical with the axis of upper connecting rod, the diameter of bores of two upper press rings respectively with
Nut bone fixes draw point and the outer diameter with bone fixation draw point and matches, the endoporus of two upper press rings be respectively fitted over nut bone fix draw point and
With on bone fixation draw point, nut bone fixes draw point and the both ends with bone fixation draw point screw thread respectively, and upper clamp nut is respectively fitted over
Nut bone fixes draw point and with being connect on bone fixation draw point with draw point thread fitting, 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, the lower part are fixedly connected with compensation linkage and include lower collar, drop-down
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 bores of two lower collars respectively with plantar
Bone fixation draw point and outer diameter with bone fixation draw point match, and the endoporus of two lower collars fixes draw point and calcaneum with metatarsal respectively
The outer wall of fixed draw point 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 passes through locking screw hole to fix draw point with metatarsal respectively and held out against with bone fixation draw point 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 endoporus both ends of buckle respectively
Anti- screw thread, the other end of two screw rods are threadedly coupled respectively with the both ends of buckle.
The beneficial effects of the invention are as follows：
Three draw points are each passed through metatarsal, nut bone and cuboid, calcaneum, at it by the present invention using Bilateral Symmetry fabricated structure
Between connected using connecting rod with pull rod, pass through the pressurization between metatarsal, nut bone and calcaneum and tense that obtain calcaneum preferable
Length and the recovery calcaneum varus line of force, and calcaneum is driven to rotate, so as to restore calcaneum height.
The present invention is the pioneering of calcaneus fracture diaplasis instrument, have it is simple in structure, easy to use, reset it is reliable, reset effect
The advantages of 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, closed reduction can be obtained by this restorer, and so as to avoid open reduction, advantageous item is created to carry out Minimally Invasive Surgery
Part.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the use state diagram of the present invention；
Fig. 3 is the screw-rod structure schematic diagram of adjustment length.
It is marked in figure as follows：Metatarsal fixes draw point 1, nut bone fixes draw point 2, with bone fixation draw point 3, top fixed connecting rod
4th, 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 metatarsal fix draw point 1, nut bone fix draw point 2, with bone fixation draw point 3, top fixed connecting rod 4, on
Portion is fixedly connected with compensation linkage 5, lower part is fixedly connected with compensation linkage 6 and forms.
Fig. 1,2 displays, metatarsal fixes draw point 1, nut bone fixes draw point 2 and is placed with 3 horizontal parallel of bone fixation draw point, metatarsal
Fixed draw point 1, nut bone fix draw point 2 and axial vertical with the front-rear direction of foot with the needle body of bone fixation draw point 3, and metatarsal is fixed
Draw point 1, nut bone fix draw point 2 and with bone fixation draw point 3 respectively in the horizontal direction pass through metatarsal 17, nut bone 18 and cuboid 19, with
Bone 20, the both ends of draw point are located at the outside of bone both sides respectively, 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.
Draw point 1 is fixed in Fig. 1,2 displays, the front end of two top fixed connecting rods 4 in the both sides of metatarsal 17 and metatarsal respectively
Both ends be connected, steel is fixed in the rear ends of two top fixed connecting rods 4 in the both sides of nut bone 18 and cuboid 19 and nut bone respectively
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, draw point 1 is fixed with metatarsal respectively for the diameter of bores of two upper lantern rings 7 and nut bone fixes the outer diameter phase of draw point 2
Match, two upper lantern rings 7 are respectively fitted over metatarsal and fix on draw point 1 and nut bone fixation draw point 2, can slide.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 to fix draw point 1 with metatarsal respectively
Draw point 2, which is fixed, with nut bone holds out against connection.After holding out against, draw point 1 and nut bone are fixed in the both ends of top fixed connecting rod 4 with metatarsal respectively
Fixed draw point 2 is fixedly connected, and fixes metatarsal 17 and nut bone 18, the position of cuboid 19.
Fig. 1,2 displays, two tops are fixedly connected with the front end of compensation linkage 5 respectively in the both sides of nut bone 18 and cuboid 19
The both ends that draw point 2 is fixed with nut bone are connected, and 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 of bone fixation draw point 3.
Fig. 1,2 displays, top are fixedly connected with compensation linkage 5 and include upper press ring 10, upper connecting rod 11,12 and of upper clamp nut
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 fix draw point 2 and opposite with bone fixation draw point 3 with nut bone respectively, are sleeved on nut bone and fix 2 He of draw point
With on bone fixation draw point 3, nut bone fixes draw point 2 and the both ends with bone fixation draw point 3 screw thread respectively, and upper clamp nut 12 is distinguished
It is sleeved on nut bone and fixes draw point 2 and with being connect on bone fixation draw point 3 with draw point thread fitting, inside and the upper pressure of upper clamp nut 12
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 preferable 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 both sides upper connecting rod 11
The pull rod 11 of degree, asymmetry pressurization or extension both 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 is consolidated respectively in the both sides of metatarsal 17 with metatarsal
The both ends for determining draw point 1 are connected, and two lower parts are fixedly connected with the rear end of compensation linkage 6 respectively in the both sides of calcaneum 20 and calcaneum
The both ends of fixed draw point 3 are connected.
Fig. 1,2 displays, lower part are fixedly connected with compensation linkage 6 and include lower collar 13, lower pull rod 14, lock screw and adjusting
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 put down
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 metatarsal and fix 1 He of draw point
With the both ends of bone fixation draw point 3, lower collar 13 is to be slidably matched with metatarsal fixation draw point 1 and with the outer wall of bone fixation draw point 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 draw point 1 and holds out against connection with bone fixation draw point 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 of centre by tensing the lower pull rod 14 between metatarsal and calcaneum, makes
Top between nut bone and calcaneum be fixedly connected compensation linkage 5 to pass through nut bone 18 nut bone fix draw point 2 rotate, drive with
Bone 20 is rotated down, so as 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 endoporus both ends of buckle 16 respectively
Line, the both ends of the other ends of two screw rods 15 respectively with buckle 16 are threadedly coupled.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：
It is diameter 2.5mm draw points that metatarsal, which fixes draw point 1, and it is diameter 2.5mm draw points that nut bone, which fixes draw point 2, is with bone fixation draw point 3
Diameter 3.0mm draw points；Top fixed connecting rod, top are fixedly connected with compensation linkage 4 and compensation linkage 5 are fixedly connected with lower part
Respectively diameter 4.0mm metallic rods.
The application method of the present invention is as follows：
A. metatarsal is fixed draw point 1, nut bone fixes draw point 2 and passes through metatarsal 17, boat in the horizontal direction with bone fixation draw point 3 respectively
Bone 18 and cuboid 19, calcaneum 20, the both ends of draw point are located at the outside of bone both sides respectively.
B., the front end of two top fixed connecting rods 4 is fixed to the both ends of draw point 1 in the both sides of metatarsal 17 and metatarsal respectively
It is connected, the rear end of two top fixed connecting rods 4 fixes the two of draw point 2 in the both 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 both sides and nut bone of nut bone 18 and cuboid 19
The both ends of fixed draw point 2 are connected, two tops be fixedly connected the rear end of compensation linkage 5 respectively the both sides of calcaneum 20 with
The both ends of bone fixation draw point 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. draw point is fixed in the front end for two lower parts being fixedly connected with to compensation linkage 6 in the both sides of metatarsal 17 and metatarsal respectively
1 both ends are connected, and two lower parts are fixedly connected with the rear end of compensation linkage 6 respectively in the both 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
Nut bone fixation draw point 2 across nut bone 18 rotates, and calcaneum 20 is driven to be rotated down, and so as to restore 20 height of calcaneum, reaches 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 and fixes draw point（1）, nut bone fix steel
Needle（2）, with bone fixation draw point（3）, top fixed connecting rod（4）, top be fixedly connected with compensation linkage（5）, lower part fix connect
Connect compensation linkage（6）, metatarsal fixation draw point（1）, nut bone fix draw point（2）With with bone fixation draw point（3）Horizontal parallel is placed,
Metatarsal fixes draw point（1）, nut bone fix draw point（2）With with bone fixation draw point（3）Needle body is axial and the front-rear direction of foot hangs down
Directly, metatarsal fixes draw point（1）, nut bone fix draw point（2）With with bone fixation draw point（3）Pass through metatarsal in the horizontal direction respectively
（17）, nut bone（18）And cuboid（19）, calcaneum（20）, respectively positioned at the outside of bone both sides, two tops are consolidated at the both ends of draw point
Determine connecting rod（4）Front end respectively in metatarsal（17）Both sides and metatarsal fix draw point（1）Both ends be connected, two tops are consolidated
Determine connecting rod（4）Rear end respectively in nut bone（18）And cuboid（19）Both sides and nut bone fix draw point（2）Both ends be connected,
Two tops are fixedly connected with compensation linkage（5）Front end respectively in nut bone（18）And cuboid（19）Both sides and nut bone fix steel
Needle（2）Both ends be connected, two tops are fixedly connected with compensation linkage（5）Rear end respectively in calcaneum（20）Both sides with
Bone fixation draw point（3）Both ends be connected, two lower parts are fixedly connected with compensation linkage（6）Front end respectively in metatarsal（17）'s
Draw point is fixed in both sides with metatarsal（1）Both ends be connected, two lower parts are fixedly connected with compensation linkage（6）Rear end respectively with
Bone（20）Both sides with bone fixation draw point（3）Both ends be connected.
2. fracture of calcaneus height Retracting repositioning device according to claim 1, it is characterised in that：The top fixed connecting rod
（4）By upper lantern ring（7）, connecting rod（8）, lock screw（9）Composition, two upper lantern rings（7）It is respectively welded and is connected to connecting rod（8）
Both ends, two upper lantern rings（7）Axis it is parallel, two upper lantern rings（7）Axis and connecting rod（8）Axis it is vertical, two
Upper lantern ring（7）Diameter of bore respectively with metatarsal fix draw point（1）Draw point is fixed with nut bone（2）Outer diameter match, on two
Lantern ring（7）Endoporus respectively with metatarsal fix draw point（1）Draw point is fixed with nut bone（2）Outer wall to be slidably matched, two upper to cover
Ring（7）Tube wall on have respectively perpendicular to it is upper set ring axis locking screw hole, lock screw（9）Across locking screw hole respectively with plantar
Bone fixation draw point（1）Draw point is fixed with nut bone（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）Including upper press ring（10）, upper connecting rod（11）, upper clamp nut（12）With the screw-rod structure of adjustment length, two
Upper press ring（10）It is respectively welded and is connected to upper connecting rod（11）Both ends, two upper press rings（10）Axis it is parallel, two upper press rings
（10）Axis and upper connecting rod（11）Axis it is vertical, two upper press rings（10）Diameter of bore respectively with nut bone fix draw point
（2）With with bone fixation draw point（3）Outer diameter match, two upper press rings（10）Endoporus be respectively fitted over nut bone fix draw point（2）
With with bone fixation draw point（3）On, nut bone fixes draw point（2）With with bone fixation draw point（3）Both ends have screw thread, upper compression spiral shell respectively
It is female（12）It is respectively fitted over nut bone and fixes draw point（2）With with bone fixation draw point（3）It is upper to be connect with draw point thread fitting, upper clamp nut
（12）Inside and upper press ring（10）Outer surface be pressed against, upper connecting rod（11）Centre have the screw rod knot of adjustment length
Structure.
4. fracture of calcaneus height Retracting repositioning device according to claim 1, it is characterised in that：The lower part is fixedly connected can
Adjusting yoke（6）Including lower collar（13）, lower pull rod（14）, lock screw and adjustment length screw-rod structure, two lower collars
（13）It is respectively welded and is connected to lower pull rod（14）Both ends, two lower collars（13）Axis it is parallel, two lower collars（13）'s
Axis and lower pull rod（14）Axis it is vertical, two lower collars（13）Diameter of bore respectively with metatarsal fix draw point（1）With with
Bone fixation draw point（3）Outer diameter match, two lower collars（13）Endoporus respectively with metatarsal fix draw point（1）With with bone fixation
Draw point（3）Outer wall to be slidably matched, two lower collars（13）Tube wall on have locking spiral shell perpendicular to ring axis of trapping respectively
Hole, lock screw pass through locking screw hole to fix draw point with metatarsal respectively（1）With with bone fixation draw point（3）Hold out against connection, lower pull rod
（14）Centre have the screw-rod structure of adjustment length.
5. fracture of calcaneus height Retracting repositioning device according to claim 3 or 4, it is characterised in that：The upper connecting rod（11）
With lower pull rod（14）The screw-rod structure of intermediate adjustment length is respectively by two screw rods（15）And buckle（16）Composition, pull-up
Bar（11）With lower pull rod（14）Respectively bi-body structure has respectively along rod length direction on the opposing end surface of two body of pull rod
Screw hole, the thread rotary orientation of two opposite screw holes is on the contrary, two screw rods（15）Thread rotary orientation on the contrary, two screw rods（15）One end
Screw hole opposite with two matches connection, buckle respectively（16）Endoporus both ends have oppositely oriented screw thread, two spiral shells respectively
Bar（15）The other end respectively with buckle（16）Both ends be threadedly coupled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129597.8A CN108210035B (en) | 2018-02-08 | 2018-02-08 | A kind of fracture of calcaneus height Retracting repositioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129597.8A CN108210035B (en) | 2018-02-08 | 2018-02-08 | A kind of fracture of calcaneus height Retracting repositioning device |
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| CN108210035A true CN108210035A (en) | 2018-06-29 |
| CN108210035B CN108210035B (en) | 2019-11-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758224A (en) * | 2019-02-20 | 2019-05-17 | 绍兴市上虞中医医院 | Fracture of calcaneus electric traction percutaneous reduction by leverage device |
| CN111035491A (en) * | 2020-01-06 | 2020-04-21 | 林雪林 | Spinal column auxiliary treatment device for spinal surgery |
| CN113506680A (en) * | 2021-07-21 | 2021-10-15 | 保定天威集团特变电气有限公司 | Layered voltage regulating coil fixing method |
| CN115399907A (en) * | 2022-09-01 | 2022-11-29 | 杭州华迈医疗科技有限公司 | Fixing device for repairing fracture of Achilles tendon |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109758224A (en) * | 2019-02-20 | 2019-05-17 | 绍兴市上虞中医医院 | Fracture of calcaneus electric traction percutaneous reduction by leverage device |
| 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 |
| CN111035491A (en) * | 2020-01-06 | 2020-04-21 | 林雪林 | Spinal column auxiliary treatment device for spinal surgery |
| CN111035491B (en) * | 2020-01-06 | 2022-05-17 | 林雪林 | Spinal column auxiliary treatment device for spinal surgery |
| CN113506680A (en) * | 2021-07-21 | 2021-10-15 | 保定天威集团特变电气有限公司 | Layered voltage regulating coil fixing method |
| 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 |
| CN115399907A (en) * | 2022-09-01 | 2022-11-29 | 杭州华迈医疗科技有限公司 | Fixing device for repairing fracture of Achilles tendon |
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| CN108210035B (en) | 2019-11-19 |
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