CN102440823A - Orthopaedic external fixing bracket connecting rod capable of plastic deformation - Google Patents
Orthopaedic external fixing bracket connecting rod capable of plastic deformation Download PDFInfo
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- CN102440823A CN102440823A CN2011102857754A CN201110285775A CN102440823A CN 102440823 A CN102440823 A CN 102440823A CN 2011102857754 A CN2011102857754 A CN 2011102857754A CN 201110285775 A CN201110285775 A CN 201110285775A CN 102440823 A CN102440823 A CN 102440823A
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- connecting rod
- fixed bar
- tensioning bolt
- spherical
- termination
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Abstract
The invention discloses an orthopaedic external fixing bracket connecting rod capable of plastic deformation. The orthopaedic external fixing bracket connecting rod comprises fixed rods, tensioning bolts, bispherical gaskets and a cable, wherein one surface of each bispherical gasket is a raised spherical face and the other surface is a concave spherical face; the fixed rods are two separated rods; internal threads are formed in internal holes at the ends of the fixed rods, wherein a raised spherical face is formed at the part, in contact with the bispherical gasket, of one rod, and a concave spherical face is formed at the part, in contact with the bispherical gasket, of the other rod; the outside diameters of the tensioning bolts are equal to those of the internal holes at the ends of the fixed rods; external threads are formed on the surfaces of the tensioning bolts and are matched with the internal threads in the internal holes at two ends of the fixed rods; the cable adopts a flexible structure; bulbs are formed at two ends of the cable; the diameter of each bulb is larger than the pore diameter of the middle of each tensioning bolt; and one tensioning bolt, one fixed rod, the bispherical gasket, the other fixed rod and the other tensioning bolt are serially connected in sequence through the cable. The connecting rod has advantage that universal plastic deformation of the connecting rod is realized.
Description
Technical field
The present invention relates to medical instruments field, specifically is a kind of orthopaedics external fixer connecting rod with inner moulding structure.
Background technology
External fixer is the apparatus commonly used of trauma fracture, but present external fixer connecting rod just lacks the simple connecting rod of moulding ability, and the clinicist is properly plan fracture axis in use, otherwise usually faces the predicament that connecting rod is difficult to assemble.In case fracture para-position and malalignment, the for want of moulding ability of present external fixation connecting rod will be difficult to correct, clinicist or remove heavily to come, or increase more connecting rod and joint formation divided piston rod makes the heaviness that it is unnecessary that external fixation becomes and complicated.Both increase operating time and wound, and caused a lot of troubles also for the adjustment fracture, directly influenced the actual therapeutic effect of external fixer, increased patient's burden and misery.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the invention provides a kind of shaping orthopaedics external fixer connecting rod, through the simple adjustment of self structure, realized the universal plastic deformation of connecting rod.
Technical scheme of the present invention is: a kind of shaping orthopaedics external fixer connecting rod, it is made up of fixed bar, tensioning bolt, two spherical pad and hawser.Said pair of spherical pad simultaneously is protruding sphere, and another side is a concave spherical surface, and two spheres are parallel, is the hole in the middle of the pad; Said fixed bar is two isolating bars; Each fixed bar is the cylinder in hole in the middle of being; The internal holes of each fixed bar termination has female thread, and one of them bar is protruding sphere with the part that two spherical pads contact, and another bar is a concave spherical surface with the part that two spherical pads contact; Said tensioning bolt is the cylinder in hole in the middle of also being, its external diameter equates that with the internal holes of fixed bar termination there is external screw thread on the surface of tensioning bolt, the screw-internal thread fit in the hole that this external screw thread and fixed bar two ends are inner; Said hawser is a flexible structure, and bulb is formed at two ends, and the diameter of bulb is greater than the intermediary aperture of tensioning bolt, hawser according to the order of tensioning bolt, fixed bar, two spherical pad, another fixed bar, another tensioning bolt with said unit Series.
The termination of said fixed bar all is outer six square nut structures.
Expose outside fixed bar a termination of said tensioning bolt, and this termination is outer six square nut structures.
Said pair of spherical pad has a plurality of.
Said protruding sphere and concave spherical surface are matsurface.
The main TV structure of said pair of spherical pad is middle circle with holes.
The operation principle of this connecting rod is: when the whole connecting rod of needs is fixed into the curved shape of a band angle; The precession tensioning bolt; Make two tensioning bolts move to relative direction, the tension force that hawser forms weakens, and a plurality of pairs of spherical pads carry out the sphere slip makes whole connecting rod form new curved shape; Screw out tensioning bolt then; Make two tensioning bolts move round about, the frictional force between the increase of cable tension and a plurality of pairs of spherical pads reaches an equilibrium point, and whole connecting rod promptly keeps fixed deformation form.
This connecting rod is compared with present external fixation connecting rod has advantage:
1, overcome the moulding difficult problem of present connecting rod, utilized the universal one-tenth of the mobile realization angle between pad to move, utilized cable tension to realize the opening and closing between pad with axle, thus moulding and fixing;
2, features simple structure is reliable, and flexible operation is avoided used many connecting rods and polylinker redundant fashion at present, reduces cost and the patient burden.
Description of drawings
Fig. 1 is a cross-sectional view of the present invention;
Fig. 2 is the front view of tensioning bolt and fixed bar termination portion;
Fig. 3 is the front view of two spherical pads;
Fig. 4 is the right view of two spherical pads.
Among the figure, 1 is hawser, and 2 is tensioning bolt, and 3 is fixed bar, and 4 is two spherical pads.
The specific embodiment
As shown in Figure 1, a kind of shaping orthopaedics external fixer connecting rod, it is made up of fixed bar 3, tensioning bolt 2, two spherical pad 4 and hawser 1.Said pair of spherical pad 4 one sides are protruding spheres, and another side is a concave spherical surface, and two spheres are parallel, are the hole in the middle of the pad; Said fixed bar 3 is two isolating bars; Each fixed bar 3 is the cylinder in hole in the middle of being; The internal holes of each fixed bar 3 termination has female thread, and one of them bar is protruding sphere with the part that two spherical pads 4 contact, and another bar is a concave spherical surface with the part that two spherical pads 4 contact; Said tensioning bolt 2 is the cylinder in hole in the middle of also being, its external diameter equates that with the internal holes of fixed bar 3 terminations there is external screw thread on the surface of tensioning bolt 2, the screw-internal thread fit in the hole that this external screw thread and fixed bar 3 two ends are inner; Said hawser 1 is a flexible structure; Bulb is formed at two ends; The diameter of bulb is greater than tensioning bolt 2 intermediary apertures, hawser 1 according to the order of tensioning bolt 2, fixed bar 3, two spherical pad 4, another fixed bar 3, another tensioning bolt 2 with said unit Series.
The termination of said fixed bar 3 all is outer six square nut structures; Expose outside fixed bar 3 termination of said tensioning bolt 2, and this termination is outer six square nut structures, and outer six square nuts are all made in the termination of fixed bar 3 and tensioning bolt 2, is the shape for better fixing whole connecting rod.
Said pair of spherical pad 4 has a plurality of.Two spherical pads 4 keep certain quantity can effectively produce deformation.
Said protruding sphere and concave spherical surface are matsurface.Matsurface can be strengthened the frictional force between two spherical pads 4.
The main TV structure of said pair of spherical pad 4 is middle circle with holes.
Fixed bar 3, tensioning bolt 2, two spherical pad 4 and hawser 1 can be rustless steels, also can be the highstrenghtpistons.
Claims (5)
1. shaping orthopaedics external fixer connecting rod, it is characterized in that: it is made up of fixed bar (3), tensioning bolt (2), two spherical pad (4) and hawser (1); Said pair of spherical pad (4) one side is protruding sphere, and another side is a concave spherical surface, and two spheres are parallel, is the hole in the middle of the pad; Said fixed bar (3) is two isolating bars; Each fixed bar (3) is the cylinder in hole in the middle of being; The internal holes of each fixed bar (3) termination has female thread; One of them bar is protruding sphere with the part that two spherical pads (4) contact, and another bar is a concave spherical surface with the part that two spherical pads (4) contact; Said tensioning bolt (2) is the cylinder in hole in the middle of also being, its external diameter equates that with the internal holes of fixed bar (3) termination there is external screw thread on the surface of tensioning bolt (2), the screw-internal thread fit in the hole that this external screw thread and fixed bar (3) two ends are inner; Said hawser (1) is a flexible structure; Bulb is formed at two ends; The diameter of bulb is greater than the intermediary aperture of tensioning bolt (2), hawser (1) according to the order of tensioning bolt (2), fixed bar (3), two spherical pad (4), another fixed bar (3), another tensioning bolt (2) with said unit Series.
2. a kind of shaping orthopaedics external fixer connecting rod according to claim 1 is characterized in that: the termination of said fixed bar (3) all is outer six square nut structures; Expose outside fixed bar (3) termination of said tensioning bolt (2), and this termination is outer six square nut structures.
3. a kind of shaping orthopaedics external fixer connecting rod according to claim 1, it is characterized in that: said pair of spherical pad (4) has a plurality of.
4. a kind of shaping orthopaedics external fixer connecting rod according to claim 1, it is characterized in that: said protruding sphere and concave spherical surface are matsurface.
5. a kind of shaping orthopaedics external fixer connecting rod according to claim 1 is characterized in that: the main TV structure of said pair of spherical pad (4) is middle circle with holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285775.4A CN102440823B (en) | 2011-09-23 | 2011-09-23 | Orthopaedic external fixing bracket connecting rod capable of plastic deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110285775.4A CN102440823B (en) | 2011-09-23 | 2011-09-23 | Orthopaedic external fixing bracket connecting rod capable of plastic deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102440823A true CN102440823A (en) | 2012-05-09 |
| CN102440823B CN102440823B (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110285775.4A Expired - Fee Related CN102440823B (en) | 2011-09-23 | 2011-09-23 | Orthopaedic external fixing bracket connecting rod capable of plastic deformation |
Country Status (1)
| Country | Link |
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| CN (1) | CN102440823B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588456A (en) * | 2020-05-23 | 2020-08-28 | 徐州长风生物科技有限公司 | High-holding-force low-loss slow-release medical bone screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1523949A1 (en) * | 2003-10-17 | 2005-04-20 | BIEDERMANN MOTECH GmbH | Surgical rod element, stabilisation device, and method of manufacturing the element |
| US20070288011A1 (en) * | 2006-04-18 | 2007-12-13 | Joseph Nicholas Logan | Spinal Rod System |
| CN101828950A (en) * | 2010-04-04 | 2010-09-15 | 武汉康斯泰德科技有限公司 | Flexible knee joint connecting rod fixed by straddling knee joint |
| CN102133128A (en) * | 2010-01-21 | 2011-07-27 | 林士闳 | Spine fixing system |
| CN202235623U (en) * | 2011-09-23 | 2012-05-30 | 吕昌伟 | Shapeable connecting rod of orthopedic external fixation support |
-
2011
- 2011-09-23 CN CN201110285775.4A patent/CN102440823B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1523949A1 (en) * | 2003-10-17 | 2005-04-20 | BIEDERMANN MOTECH GmbH | Surgical rod element, stabilisation device, and method of manufacturing the element |
| US20070288011A1 (en) * | 2006-04-18 | 2007-12-13 | Joseph Nicholas Logan | Spinal Rod System |
| CN102133128A (en) * | 2010-01-21 | 2011-07-27 | 林士闳 | Spine fixing system |
| CN101828950A (en) * | 2010-04-04 | 2010-09-15 | 武汉康斯泰德科技有限公司 | Flexible knee joint connecting rod fixed by straddling knee joint |
| CN202235623U (en) * | 2011-09-23 | 2012-05-30 | 吕昌伟 | Shapeable connecting rod of orthopedic external fixation support |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588456A (en) * | 2020-05-23 | 2020-08-28 | 徐州长风生物科技有限公司 | High-holding-force low-loss slow-release medical bone screw |
| CN111588456B (en) * | 2020-05-23 | 2022-03-25 | 余丹丹 | High-holding-force low-loss slow-release medical bone screw and punching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102440823B (en) | 2015-03-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20180923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |