CN111743611B - Multi freedom external fixation frame - Google Patents
Multi freedom external fixation frame Download PDFInfo
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- CN111743611B CN111743611B CN202010470255.XA CN202010470255A CN111743611B CN 111743611 B CN111743611 B CN 111743611B CN 202010470255 A CN202010470255 A CN 202010470255A CN 111743611 B CN111743611 B CN 111743611B
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
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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
- A61B2017/564—Methods for bone or joint treatment
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a multi-degree-of-freedom external fixing frame, which adopts the technical scheme that the multi-degree-of-freedom external fixing frame comprises fixing ring parts and telescopic connecting rod parts, wherein the two fixing ring parts are connected through six telescopic connecting rod parts; the fixed ring connecting portion and the connecting rod connecting portion are arranged at an included angle, the two ends of the telescopic connecting rod component are respectively provided with a rotating connecting piece, the telescopic connecting rod component is rotatably connected with the rotating connecting pieces, and the rotating axial direction of the telescopic connecting rod component, which is rotatably connected with the rotating connecting pieces, is perpendicular to the rotating axial direction of the connecting rod connecting portion, which is rotatably connected with the rotating connecting pieces. The fixing frame can effectively improve the flexibility degree of the fixing frame during installation.
Description
Technical Field
The invention relates to the technical field of orthopedic correction and rehabilitation equipment, in particular to a multi-degree-of-freedom external fixing frame.
Background
In the surgical treatment of bone, fixing device is indispensable, and traditional fixed mode generally adopts the steel sheet internal fixation, has also appeared now that the wound is less external fixation's treatment mode. The commonly used external fixation devices are mainly Ilizarov external fixation devices and Taylor skeletons. The Ilizarov technique uses a multi-planar thin k-wire that penetrates the limb and bone tissue and connects to an annular fixator. The taylor improves upon the ILizarov external fixation system by obliquely connecting six telescoping extension rods to the proximal and distal rings and allowing axial rotation about rotation at the connection points, so that once the length of one of the extension rods is adjusted, one ring changes position relative to the other.
However, the two ends of the existing extension rod are respectively connected to the end faces of the near-end ring and the far-end ring, so that the extension rod can only rotate around a rotating axial direction on the ring, the existing fixing frame needs to be finely adjusted for many times during installation, even the best installation effect is difficult to achieve, and the flexibility of the fixing frame during installation is greatly reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multi-degree-of-freedom external fixing frame which can effectively improve the flexibility of the fixing frame during installation.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi freedom external fixation frame, is including fixed ring part and telescopic connecting rod part, fixed ring part is provided with two, telescopic connecting rod part is provided with six, and two fixed ring parts are connected through six telescopic connecting rod parts, be provided with the rotation turning connecting piece that is used for being connected with telescopic connecting rod part on fixed ring part's the circumference lateral wall, telescopic connecting rod part length direction's both ends are connected with two fixed ring parts through rotating turning connecting piece respectively, rotate turning connecting piece including one end be used for with fixed ring part axial rotate the solid fixed ring connecting portion of being connected, and the other end is used for the connecting rod connecting portion of being connected with telescopic connecting rod part axial rotation, the rotation axial that fixed ring connecting portion and fixed ring part rotate to be connected keeps unanimous with the length direction of fixed ring connecting portion, the rotation axial that connecting rod connecting portion and telescopic connecting rod The directions are kept consistent;
the telescopic connecting rod component comprises a fixing ring connecting part, a telescopic connecting rod component and a connecting rod connecting part, wherein the fixing ring connecting part and the connecting rod connecting part are arranged at an included angle, the connecting rod connecting part at one end of the telescopic connecting rod component and the included angle of the fixing ring connecting part are included angles a, the connecting rod connecting part at the other end of the telescopic connecting rod component and the included angle of the fixing ring connecting part are included angles b, the included angles a and the included angles b are complementary angles, the two ends of the length direction of the telescopic connecting rod component are provided with rotating connecting pieces used for being connected with the connecting rod connecting part in a rotating mode, the telescopic connecting rod component is connected with the rotating.
The invention is further configured to: the spiro union has the locking screw who is used for the solid fixed ring connecting portion pivoted of restriction on the fixed ring part, it has the locking screw who is used for restricting connecting rod connecting portion pivoted also to spiro union on the connecting piece to rotate, and locking screw can play the solid fixed ring connecting portion of restriction or connecting rod connecting portion and rotate when rotating in-process tip butt on solid fixed ring connecting portion or connecting rod connecting portion.
The invention is further configured to: the locking caulking grooves for embedding the top ends of the locking screws are arranged on the fixing ring connecting portion and the connecting rod connecting portion in a corresponding mode, and the locking caulking grooves are arranged on the outer side walls of the fixing ring connecting portion and the connecting rod connecting portion in a surrounding mode.
The invention is further configured to: the utility model discloses a support structure, including solid fixed ring connecting portion, connecting rod connecting portion, the fixed ring connecting portion, the cover is equipped with the support lantern ring that supports between solid fixed ring connecting portion and the fixed ring part on the solid fixed ring connecting portion, also the cover is equipped with the support lantern ring that supports between connecting rod connecting portion and rotation connecting piece on the connecting rod connecting portion, the support lantern ring is made by the good material of moulding of wear resistance, set up the deformation opening that runs through its thickness direction on the lateral wall of the support lantern ring, the deformation opening extends the setting and runs through the both ends of the support lantern ring along the length direction.
The invention is further configured to: the support lantern ring that solid fixed ring connecting portion were located to the cover is provided with two, and two support lantern rings are located the near-end and the distal end of pegging graft at solid fixed ring connecting portion in the fixed ring part respectively, gu fixed ring connecting portion are provided with spacing bulge loop between two support lantern rings, the external diameter of spacing bulge loop is greater than the internal diameter of the support lantern ring size, be provided with the lock ring of the solid fixed ring connecting portion axial displacement of restriction on the fixed ring part, fixed connection can be dismantled with solid fixed ring part to the lock ring, the internal diameter of lock ring size is less than the external diameter of the support lantern ring.
The invention is further configured to: the support lantern ring that the cover was located on the connecting rod connecting portion is provided with two, and two support lantern rings are located the near-end and the distal end of grafting connecting rod connecting portion in rotating the connecting piece respectively, connecting rod connecting portion are provided with spacing bulge loop between two support lantern rings, the external diameter of spacing bulge loop is greater than the internal diameter of supporting the lantern ring size, be provided with the lock ring of restriction connecting rod connecting portion axial displacement on rotating the connecting piece, fixed connection can be dismantled with the rotation connecting piece to the lock ring, the internal diameter of lock ring size is less than the external diameter of supporting the lantern ring size.
The invention is further configured to: the telescopic connecting rod component is characterized in that a connecting lug which is used for being connected with the end part of the telescopic connecting rod component in a rotating mode is arranged on the rotating connecting piece, through holes are formed in the end part of the telescopic connecting rod component and the connecting lug, a locking bolt penetrates through the through holes, one end, penetrating through the through holes, of the locking bolt is connected with a locking nut in a threaded mode, and a spring washer which is abutted between the connecting lug and the end part of the telescopic connecting rod component is sleeved on the locking bolt.
In conclusion, the invention has the following beneficial effects: the telescopic connecting rod part and the fixed ring part of the fixed frame comprise the following rotating parts in the installation process: the rotating shaft of the fixed ring connecting part and the fixed ring part, the connecting rod connecting part and the rotating connecting part axially rotate, and the rotating connecting part and the telescopic connecting rod part axially rotate; wherein solid fixed ring connecting portion rotate to be connected on the circumference lateral wall of fixed ring part to telescopic connecting rod part can rotate with connecting rod connecting portion through rotating the connecting piece and be connected, and telescopic connecting rod part still rotates with rotating the connecting piece and is connected, consequently two fixation framves can realize multi freedom's nimble regulation through rotating corner connecting piece when adjusting the installation, can effectively improve the installation effect.
Drawings
FIG. 1 is a schematic view of a telescoping link member connected to a stationary ring member by a pivoting corner connector;
FIG. 2 is a schematic view of a corner connector in use;
FIG. 3 is a side view of the fixing frame;
FIG. 4 is a schematic top view of the fixing frame;
FIG. 5 is a perspective view of a telescoping link member in cooperation with a rotating corner connector.
Reference numerals: 1. a stationary ring member; 2. a telescoping link member; 21. rotating the connecting piece; 211. a connecting lug; 22. locking the bolt; 23. locking the nut; 24. a spring washer; 3. rotating the corner connector; 31. a fixed ring connecting part; 32. a connecting rod connecting part; 33. locking the caulking groove; 34. a support collar; 35. a limit convex ring; 4. locking the screw; 5. a locking ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-5, a multi-degree-of-freedom external fixation frame comprises a fixed ring part 1 and telescopic connecting rod parts 2, wherein two fixed ring parts 1 are provided, six telescopic connecting rod parts 2 are provided, the two fixed ring parts 1 are connected through the six telescopic connecting rod parts 2, a rotating corner connecting piece 3 for connecting the telescopic connecting rod parts 2 is arranged on the circumferential outer side wall of the fixed ring part 1, two ends of the telescopic connecting rod parts 2 in the length direction are respectively connected with the two fixed ring parts 1 through the rotating corner connecting piece 3, the rotating corner connecting piece 3 comprises a fixed ring connecting part 31 with one end for axially and rotatably connecting with the fixed ring part 1 and a connecting rod connecting part 32 with the other end for axially and rotatably connecting with the telescopic connecting rod parts 2, the rotating axial direction of the fixed ring connecting part 31 and the fixed ring part 1 in the rotating connection is consistent, the rotating axial direction of the connecting rod connecting part 32 rotatably connected with the telescopic connecting rod component 2 is consistent with the length direction of the connecting rod connecting part 32; fixed ring connecting portion 31 and connecting rod connecting portion 32 become the contained angle setting, the contained angle of the connecting rod connecting portion 32 of the 2 one ends of telescopic connecting rod part and fixed ring connecting portion 31 is contained angle an, the contained angle of the connecting rod connecting portion 32 of the 2 other ends of this telescopic connecting rod part and fixed ring connecting portion 31 is contained angle b, contained angle a and contained angle b each other are for complementing the angle, the both ends of 2 length direction of telescopic connecting rod part all are provided with and are used for rotating the rotation connecting piece 21 of being connected with connecting rod connecting portion 32, telescopic connecting rod part 2 rotates with rotation connecting piece 21 to be connected, and telescopic connecting rod part 2 rotates the rotation axial that is connected with rotation connecting piece 21 with connecting rod connecting portion 32 and rotates the.
The telescopic connecting rod part 2 and the fixed ring part 1 of the fixed frame comprise the following rotating parts in the installation process: the rotating axial direction of the fixed ring connecting part 31 and the fixed ring part 1, the axial direction of the connecting rod connecting part 32 and the rotating connecting part 21, and the axial direction of the rotating connecting part 21 and the telescopic connecting rod part 2; wherein fixed ring connecting portion 31 rotates to be connected on the circumference lateral wall of fixed ring part 1 to telescopic connecting rod part 2 can rotate with connecting rod connecting portion 32 through rotating connecting piece 21 and is connected, and telescopic connecting rod part 2 still rotates with rotating connecting piece 21 and is connected, consequently two fixation framves can realize multi freedom's nimble regulation through rotating corner connecting piece 3 when adjusting the installation, can effectively improve the installation effect.
If the near-end fixing frame rotates or obliquely swings relative to the far-end fixing frame, the near-end fixing frame can be axially regulated and controlled through the connecting rod connecting part 32 and the rotating connecting part 21, even when the swing amplitude is large, the inclination angle of the telescopic connecting rod part 2 can be regulated and controlled at the rotating position of the rotating connecting part 21 and the telescopic connecting rod part 2, so that the flexible regulation and control of the telescopic connecting rod part 2 are realized, and the flexible degree of the fixing frame during installation can be effectively improved.
In addition, the included angle a and the included angle b are complementary angles, so that the telescopic connecting rod component 2 connected between the two fixed ring components 1 can be obliquely arranged as shown in fig. 3, and the connecting rod connecting portion 32 and the axial rotation of the rotating connecting piece 21 and the telescopic connecting rod component 2 can be realized through the rotating axial direction of the fixed ring connecting portion 31 and the fixed ring components 1, so that the flexible regulation and control installation of the fixing frame can be realized.
The locking screw 4 for limiting the rotation of the fixing ring connecting part 31 is screwed on the fixing ring part 1, the locking screw 4 for limiting the rotation of the connecting rod connecting part 32 is screwed on the rotating connecting part 21, and the locking screw 4 can limit the rotation of the fixing ring connecting part 31 or the connecting rod connecting part 32 when the end part of the locking screw 4 abuts against the fixing ring connecting part 31 or the connecting rod connecting part 32 in the rotating process. The rotation connection position of the fixing ring connecting part 31 and the fixing ring component 1 and the rotation connection position of the connecting rod connecting part 32 and the rotation connecting part 21 can be locked through the locking screw 4, the structure is simple and easy to implement, the rotation limitation of the rotation corner connecting part 3 can be conveniently realized, and the fixing frame can be effectively locked and fixed.
The locking caulking grooves 33 for embedding the top ends of the locking screws 4 are arranged on the fixing ring connecting part 31 and the connecting rod connecting part 32 corresponding to the locking screws 4, and the locking caulking grooves 33 are arranged on the outer side walls of the fixing ring connecting part 31 and the connecting rod connecting part 32 in a surrounding mode. When the top end of the locking screw 4 is embedded into the locking caulking groove 33, the top end of the locking screw 4 can abut against the two sides of the width of the locking caulking groove 33, so that the rotation limiting effect on the fixing ring connecting part 31 and the connecting rod connecting part 32 can be realized, the axial movement limiting effect on the fixing ring connecting part 31 and the connecting rod connecting part 32 can be realized, the further improvement of the firm connection degree between the fixing ring connecting part 31 and the fixing ring component 1 and the firm connection degree between the connecting rod connecting part 32 and the telescopic connecting rod component 2 can be facilitated.
The cover is equipped with the support lantern ring 34 that supports between solid fixed ring connecting portion 31 and solid fixed ring part 1 on the solid fixed ring connecting portion 31, also the cover is equipped with the support lantern ring 34 that supports between connecting rod connecting portion 32 and rotation connecting piece 21 on the connecting rod connecting portion 32, support lantern ring 34 is made by the plastic material that wear resistance is good, set up the deformation opening that runs through its thickness direction on the lateral wall of support lantern ring 34, the deformation opening extends the setting and runs through the both ends of support lantern ring 34 along the length direction of support lantern ring 34, the cross section of support lantern ring 34 becomes the setting of C font structure. The support collar 34 made of polyethylene has good wear resistance and impact resistance, and is beneficial to improving the use stability and the service life of the fixing frame. The cross section of the supporting lantern ring 34 is C-shaped, so that the supporting lantern ring can deform in the radial direction and is conveniently sleeved on the fixing ring connecting part 31 and the connecting rod connecting part 32; and by this support lantern ring 34 support between solid fixed ring connecting portion 31 and solid fixed ring part 1 and between connecting rod connecting portion 32 and rotation connecting piece 21, greatly reduced between solid fixed ring connecting portion 31 and the solid fixed ring part 1 and the connecting rod connecting portion 32 and the precision requirement of processing and assembly between the rotation connecting piece 21, conveniently through the support lantern ring 34 cooperation connection of deformability.
The support lantern ring 34 of cover on fixed ring connecting portion 31 is provided with two, two support lantern rings 34 are located the near-end and the distal end of pegging graft at fixed ring part 1 internal fixation ring connecting portion 31 respectively, fixed ring connecting portion 31 is provided with spacing bulge loop 35 between two support lantern rings 34, the external diameter of spacing bulge loop 35 is greater than the internal diameter of support lantern ring 34, be provided with the lock ring 5 of the solid fixed ring connecting portion 31 axial displacement of restriction on the fixed ring part 1, fixed connection can be dismantled with fixed ring part 1 to lock ring 5, the internal diameter of lock ring 5 is less than the external diameter of support lantern ring 34. The lock ring 5 can be fastened to the fixed ring member 1 by a screw, and plays a role of restricting the fixed ring connecting portion 31 from being drawn out from the fixed ring member 1; the one end of going deep in solid fixed ring connecting portion 31 inserts solid fixed ring part 1 is the distal end, the one end that is close to the opening part in inserting solid fixed ring part 1 is the near-end, through set up two support lantern rings 34 on solid fixed ring connecting portion 31 not only can effectively reduce the area of contact of solid fixed ring connecting portion 31 when solid fixed ring part 1 internal rotation, and then be favorable to reducing the frictional force of solid fixed ring connecting portion 31 when rotating, and can also conveniently realize the effect of solid fixed ring connecting portion 31 wobbling in solid fixed ring part 1 of restriction, thereby be favorable to improving the firm degree in use of mount.
The support lantern ring 34 that the cover was located on connecting rod connecting portion 32 is provided with two, two support lantern rings 34 are located the near-end and the distal end of grafting connecting rod connecting portion 32 in rotating connecting piece 21 respectively, connecting rod connecting portion 32 is provided with spacing bulge loop 35 between two support lantern rings 34, the external diameter of spacing bulge loop 35 is greater than the internal diameter of support lantern ring 34, be provided with the lock ring 5 of restriction connecting rod connecting portion 32 axial displacement on rotating connecting piece 21, fixed connection can be dismantled with rotating connecting piece 21 to lock ring 5, the internal diameter of lock ring 5 is less than the external diameter of support lantern ring 34. The lock ring 5 can be fastened to the rotary joint 21 by a screw, and plays a role of limiting the link connecting part 32 from being drawn out from the rotary joint 21; connecting rod connecting portion 32 inserts and rotates the interior deep one end of connecting piece 21 and be the distal end, the one end that is close to the opening part in the connecting piece 21 is the near-end to the insertion rotation, not only can effectively reduce the area of contact of connecting rod connecting portion 32 when rotating connecting piece 21 internal rotation through two support lantern rings 34 are established to the cover on connecting rod connecting portion 32, and then be favorable to reducing the frictional force of connecting rod connecting portion 32 when rotating, and can also conveniently realize restriction connecting rod connecting portion 32 wobbling effect in rotating connecting piece 21, thereby be favorable to improving the firm degree in use of mount.
Above-mentioned spacing bulge loop 35 not only can play limiting displacement to the support lantern ring 34, can also supply the setting of locking caulking groove 33 simultaneously, and the convenience realizes the limited rotation effect to turning corner connecting piece 3 through locking screw 4.
The rotary connecting piece 21 is provided with a connecting lug 211 which is used for being rotationally connected with the end part of the telescopic connecting rod part 2, the end part of the telescopic connecting rod part 2 and the connecting lug 211 are provided with through holes, a locking bolt 22 penetrates through the through holes, one end of the locking bolt 22 penetrating through the through holes is connected with a locking nut 23 in a threaded mode, and a spring washer 24 which is abutted between the connecting lug 211 and the end part of the telescopic connecting rod part 2 is sleeved on the locking bolt 22. The rotary connecting piece 21 and the telescopic connecting rod component 2 can rotate around the locking bolt 22, and the rotary connecting piece 21 and the telescopic connecting rod component 2 can be locked after the locking nut 23 is screwed. Wherein, the arrangement of the spring washer 24 can adjust the rotation resistance of the rotary connecting piece 21 and the telescopic connecting rod part 2 when the locking nut 23 is not screwed, so that the rotation of the rotary connecting piece 21 and the telescopic connecting rod part 2 can adjust the flexible degree of rotation in the state of rotating the locking nut 23, thereby being beneficial to improving the flexible degree of the use of the fixing frame when in installation.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The utility model provides a multi freedom external fixation frame, is including fixed ring part (1) and telescopic connecting rod part (2), fixed ring part (1) is provided with two, telescopic connecting rod part (2) are provided with six, and two fixed ring parts (1) are connected characterized by through six telescopic connecting rod parts (2): a rotating corner connecting piece (3) used for being connected with the telescopic connecting rod part (2) is arranged on the circumferential outer side wall of the fixed ring part (1), the two ends of the length direction of the telescopic connecting rod part (2) are respectively connected with the two fixed ring parts (1) through a rotating corner connecting piece (3), the rotating corner connecting piece (3) comprises a fixed ring connecting part (31) with one end used for being axially and rotatably connected with the fixed ring part (1) and a connecting rod connecting part (32) with the other end used for being axially and rotatably connected with the telescopic connecting rod part (2), the rotating axial direction of the fixed ring connecting part (31) and the fixed ring part (1) which are rotationally connected is kept consistent with the length direction of the fixed ring connecting part (31), the rotating axial direction of the connecting rod connecting part (32) rotatably connected with the telescopic connecting rod component (2) is consistent with the length direction of the connecting rod connecting part (32);
the utility model discloses a telescopic connecting rod, including solid fixed ring connecting portion (31), connecting rod connecting portion (32), telescopic connecting rod part (2) one end, connecting rod connecting portion (32) and solid fixed ring connecting portion (31) of telescopic connecting rod part (2) one end become the contained angle setting, and the contained angle of connecting rod connecting portion (32) and solid fixed ring connecting portion (31) of this telescopic connecting rod part (2) other end is contained angle a, and contained angle a and contained angle b are each other for complementing the angle, telescopic connecting rod part (2) length direction's both ends all are provided with and are used for rotating rotation connecting piece (21) of being connected with connecting rod connecting portion (32), telescopic connecting rod part (2) rotate with rotation connecting piece (21) and are connected to rotation axial that telescopic connecting rod part (2) and rotation connecting piece (21) rotate to be connected sets up perpendicularly.
2. The external fixator of claim 1, wherein the external fixator comprises: the utility model discloses a lock ring structure, including fixed ring part (1), have the spiro union to be used for restricting solid fixed ring connecting portion (31) pivoted locking screw (4) on fixed ring part (1), also the spiro union has the locking screw (4) that are used for restricting connecting rod connecting portion (32) pivoted on rotating connecting piece (21), and locking screw (4) can play when rotating in-process tip butt on solid fixed ring connecting portion (31) or connecting rod connecting portion (32) and restrict solid fixed ring connecting portion (31) or connecting rod connecting portion (32) and rotate.
3. The external fixator of claim 2, wherein the external fixator comprises: the locking caulking groove (33) that supplies locking screw (4) top embedding is all provided with in the department of corresponding locking screw (4) on solid fixed ring connecting portion (31) and connecting rod connecting portion (32), locking caulking groove (33) encircle to set up on the lateral wall of solid fixed ring connecting portion (31) and connecting rod connecting portion (32).
4. The external fixator of claim 1, wherein the external fixator comprises: the cover is equipped with the support lantern ring (34) that support between solid fixed ring connecting portion (31) and fixed ring part (1) on solid fixed ring connecting portion (31), also the cover is equipped with the support lantern ring (34) that support between connecting rod connecting portion (32) and rotation connecting piece (21) on connecting rod connecting portion (32), support lantern ring (34) are made by the good material of moulding of wear resistance, set up the deformation opening that runs through its thickness direction on the lateral wall of support lantern ring (34), the deformation opening extends the both ends that set up and run through support lantern ring (34) along the length direction of support lantern ring (34), the cross section of support lantern ring (34) becomes the setting of C font structure.
5. The external fixator of claim 4, wherein the external fixator comprises: the support lantern ring (34) that the cover was located on solid fixed ring connecting portion (31) is provided with two, and two support lantern rings (34) are located the near-end and the distal end of pegging graft at solid fixed ring connecting portion (31) in fixed ring part (1) respectively, gu fixed ring connecting portion (31) are provided with spacing bulge loop (35) between two support lantern rings (34), the external diameter size of spacing bulge loop (35) is greater than the internal diameter size of support lantern ring (34), be provided with lock ring (5) of restriction solid fixed ring connecting portion (31) axial displacement on fixed ring part (1), fixed connection can be dismantled with fixed ring part (1) in lock ring (5), the internal diameter size of lock ring (5) is less than the external diameter size of support lantern ring (34).
6. The external fixator of claim 4, wherein the external fixator comprises: the support lantern ring (34) that the cover was located on connecting rod connecting portion (32) are provided with two, and two support lantern rings (34) are located the near-end and the distal end of grafting connecting rod connecting portion (32) in rotating connecting piece (21) respectively, connecting rod connecting portion (32) are provided with spacing bulge loop (35) between two support lantern rings (34), the external diameter size of spacing bulge loop (35) is greater than the internal diameter size who supports lantern ring (34), be provided with on rotation connecting piece (21) restriction connecting rod connecting portion (32) axial displacement's lock ring (5), fixed connection can be dismantled with rotation connecting piece (21) to lock ring (5), the internal diameter size of lock ring (5) is less than the external diameter size who supports lantern ring (34).
7. The external fixator of claim 1, wherein the external fixator comprises: rotate and be provided with on connecting piece (21) and be used for rotating connection lug (211) of being connected with telescopic connecting rod part (2) tip, all be provided with the perforation on the tip of telescopic connecting rod part (2) and connection lug (211), wear to be equipped with locking bolt (22) in the perforation, locking bolt (22) pass fenestrate one end spiro union have lock nut (23), the cover is equipped with spring washer (24) of butt between connection lug (211) and telescopic connecting rod part (2) tip on locking bolt (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470255.XA CN111743611B (en) | 2020-05-28 | 2020-05-28 | Multi freedom external fixation frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470255.XA CN111743611B (en) | 2020-05-28 | 2020-05-28 | Multi freedom external fixation frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111743611A CN111743611A (en) | 2020-10-09 |
| CN111743611B true CN111743611B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010470255.XA Active CN111743611B (en) | 2020-05-28 | 2020-05-28 | Multi freedom external fixation frame |
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| CN (1) | CN111743611B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001078613A1 (en) * | 2000-04-19 | 2001-10-25 | Synthes Ag Chur | Device for the articulated connection of two bodies |
| CN101884561A (en) * | 2010-07-05 | 2010-11-17 | 苏州市百得医疗器械有限公司 | Skull traction frame |
| CN109069187A (en) * | 2016-07-14 | 2018-12-21 | Amdt控股公司 | Bone external fixation system |
| CN109602462A (en) * | 2018-12-07 | 2019-04-12 | 冯虎 | A kind of knee replacements bracket |
| CN111184564A (en) * | 2019-12-26 | 2020-05-22 | 南华大学附属南华医院 | Novel unilateral locking lumbosacral vertebrae axial fusion internal fixation system |
-
2020
- 2020-05-28 CN CN202010470255.XA patent/CN111743611B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001078613A1 (en) * | 2000-04-19 | 2001-10-25 | Synthes Ag Chur | Device for the articulated connection of two bodies |
| CN101884561A (en) * | 2010-07-05 | 2010-11-17 | 苏州市百得医疗器械有限公司 | Skull traction frame |
| CN109069187A (en) * | 2016-07-14 | 2018-12-21 | Amdt控股公司 | Bone external fixation system |
| CN109602462A (en) * | 2018-12-07 | 2019-04-12 | 冯虎 | A kind of knee replacements bracket |
| CN111184564A (en) * | 2019-12-26 | 2020-05-22 | 南华大学附属南华医院 | Novel unilateral locking lumbosacral vertebrae axial fusion internal fixation system |
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| Publication number | Publication date |
|---|---|
| CN111743611A (en) | 2020-10-09 |
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