CN111603227B - Orthopedics fixed bolster - Google Patents
Orthopedics fixed bolster Download PDFInfo
- Publication number
- CN111603227B CN111603227B CN202010482529.7A CN202010482529A CN111603227B CN 111603227 B CN111603227 B CN 111603227B CN 202010482529 A CN202010482529 A CN 202010482529A CN 111603227 B CN111603227 B CN 111603227B
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- CN
- China
- Prior art keywords
- connecting rod
- hole
- head
- bolt
- stepped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6441—Bilateral fixators, i.e. with both ends of pins or wires clamped
Abstract
The invention relates to an orthopedic fixing support which comprises two fixing parts, a support part and a steel plate, wherein each fixing part comprises a bolt and a disc which is fixed with the bolt through a clamp spring and a retaining ring, and a thread part of the bolt is inserted into and penetrates through a second through hole; the bracket part comprises a connecting rod, a barb structure and a through hole cylinder; the lower end of the barb structure is clamped with the disc, the upper end of the barb structure is connected with a through-hole cylinder, the through-hole cylinder is connected with the connecting rod through a right-angle sleeve, and a connecting rod nut is arranged on a male head of the connecting rod; the female head of connecting rod is the screw thread post, and the female head of connecting rod is installed in the screw thread through-hole, and the invention forms the interact power between two bolts to reach the purpose of preventing the postoperative bolt from becoming flexible, is adjustable at the same time at the connecting rod, and patient can adjust the length of connecting rod by oneself after the operation, realizes locking to the bolt.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an orthopedic fixing support.
Background
Present horizontal fracture, oblique fracture, the usual direct use bolt fastening steel sheet and bone during the operation, at the postoperative recovery in-process, not hard up phenomenon can appear in the bolt to lead to the operation failure, if can effectually prevent not hard up of bolt, just can reduce the failure rate of operation, firm fixed mode can be great shorten patient's recovery cycle.
Disclosure of Invention
The invention aims to provide an orthopedic fixing support, which can prevent bolts from loosening and prevent the case of operation failure caused by the loosening phenomenon of the bolts.
In order to achieve the purpose, the invention adopts the following technical scheme:
an orthopedic fixation bracket comprises two fixation parts, a bracket part and a steel plate; the fixing part comprises a bolt, a disc, a clamp spring and a baffle ring; the upper surface of the disc is provided with a first through hole, the shape of the lower end of the first through hole is matched with the shape of the outer surface of the head of the bolt, and the head of the bolt is inserted into the lower end of the first through hole; the retaining ring is positioned on the lower side of the head of the bolt, and the clamp spring is positioned on the lower side of the retaining ring; the steel plate is provided with two second through holes, and the threaded part of the bolt is inserted into and penetrates through the second through holes; the upper surface of the disc is provided with stepped through holes, the stepped through holes are arranged around the first through holes in an annular array mode, and the lower ends of the stepped through holes are larger than the upper ends of the stepped through holes; the bracket part comprises a connecting rod, two barb structures and two through hole cylinders; the two barb structures are respectively clamped into the lower ends of the stepped through holes on the two discs; the lower end of the through hole cylinder is arranged on the barb structure; the connecting rod comprises a first connecting rod, a second connecting rod, a male connecting rod head, a nut connecting rod and a female connecting rod head, one end of the first connecting rod is connected to the upper end of a through hole cylinder through a right-angle sleeve, the other end of the first connecting rod is connected with the male connecting rod head, and a abdicating hole is formed in the male connecting rod head; the connecting rod nut is provided with a threaded through hole aligned with the abdicating hole, and the connecting rod nut is arranged on the male head of the connecting rod; the female head of connecting rod is the screw thread post, and the female head of connecting rod sets up in the one end of second connecting rod, and the female head of connecting rod is installed in the screw thread through-hole, and the other end of second connecting rod passes through right angle sleeve and connects in another through-hole columniform upper end.
Further, the barb structure includes barb portion, and barb portion is four claw elastic construction, and barb portion includes the elastic arm and four first bosss of four vertical settings, and first boss is connected in the lower extreme of elastic arm.
Furthermore, a second boss is arranged at the male end of the connecting rod, and an annular bulge coaxial with the second boss is arranged on the peripheral wall of the second boss; the connecting rod screw cap is provided with an elastic steel claw, the second boss is inserted into the middle of the elastic steel claw, and the elastic steel claw is clamped in the annular bulge.
Furthermore, the second through hole is a stepped hole, the upper end of the stepped hole is larger than the lower end of the stepped hole, and the upper end of the stepped hole is in clearance fit with the disc.
Further, the connecting rod is made of an elastic material.
Furthermore, the connecting rod also comprises a third connecting rod, another connecting rod male head, another connecting rod nut and another connecting rod female head; the third connecting rod set up in between first connecting rod and the second connecting rod, and the one end of third connecting rod is connected with the connecting rod nut on the first connecting rod through another connecting rod female head, and the other end of third connecting rod is connected with the connecting rod female head on the second connecting rod through another connecting rod male head and another connecting rod nut.
Further, one or more of the first, second and third links includes a first section disposed in parallel spaced relation to a second section, and a connecting section connecting the first and second sections.
Furthermore, the rotation directions of the two bolts are the same, and a connecting line between the centers of the two disks and a connecting line between the two through hole cylinders are arranged in a crossed mode.
Furthermore, the barb structure comprises a threaded connecting column and a barb part arranged at the lower part, the barb part is clamped into the lower end of the stepped through hole, and the threaded connecting column is positioned in the stepped through hole; the lower end of the through hole cylinder is arranged on the threaded connecting column.
Furthermore, the upper end surface of the barb structure is provided with a jack, and the lower end of the through hole cylinder is inserted into the jack; or the through-hole cylinder is provided with a through hole, and the upper end of the barb structure is inserted into the through hole of the through-hole cylinder.
The invention has the beneficial effects that: the bolt and the disc are fixed through the snap spring and the retaining ring, the connecting rod and the disc are connected with the through hole cylinder through the barb structure, and an interaction force is formed between the bolts, so that the aim of preventing the bolt from loosening after operation is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of the overall structure of an embodiment of an orthopedic fixation support of the present invention;
FIG. 2 is a schematic perspective view of the steel plate of FIG. 1;
FIG. 3 is a schematic view of the overall structure of the disk of FIG. 1;
FIG. 4 is a perspective view of the barb of FIG. 1;
FIG. 5 is a schematic perspective view of the through hole cylinder of FIG. 1;
FIG. 6 is a schematic perspective view of the connecting rod of FIG. 1;
FIG. 7 is a schematic cross-sectional view of the male connector, the female connector and the nut of the connector of FIG. 1;
FIG. 8 is a schematic perspective view of the male end of the connecting rod of FIG. 6;
FIG. 9 is a perspective view of the nut of the tie rod of FIG. 6;
FIG. 10 is a perspective view of the female end of the connecting rod of FIG. 6;
FIG. 11 is a top view of a connecting rod connecting two disks;
FIG. 12 is a perspective view of the barbs in example 2;
fig. 13 is a schematic perspective view of a through-hole cylinder in embodiment 2.
Detailed Description
Referring to fig. 1-11, an orthopedic fixation support comprises two fixation portions, a support portion and a steel plate 1, wherein the fixation portions are composed of bolts 3, a disc 16, a clamp spring 5 and a baffle ring 6. The bolt 3 is a hexagon socket head cap screw, and is convenient to screw down in use. The outer surface of the head of the bolt 3 is in a hexagon shape, the upper surface of the disc 16 is provided with a first through hole 29, the upper end of the first through hole 29 is provided with a chamfer, the shape of the lower end of the first through hole 29 is matched with the shape of the outer surface of the bolt 3, and the disc 16 and the bolt 3 are assembled together in a transition fit mode. The lower part of the head of the bolt 3 is provided with a retaining ring 6 and a clamp spring 5, the retaining ring 6 is arranged between the clamp spring 5 and the head of the bolt 3, the clamp spring 5 plays a role in preliminary fixing between the bolt 3 and a disc 16, the retaining ring 6 adjusts the position of the bolt 3 in the disc 16 through the thickness of the retaining ring 6, and the retaining ring 6 is fixed by the clamp spring 5. Two second through holes 2 are formed in the upper surface of the steel plate 1, the second through holes 2 are stepped holes, the upper ends of the stepped holes are larger than the lower ends of the stepped holes, the threaded portions of the bolts 3 are inserted into the second through holes 2 and penetrate through the second through holes, and the stepped holes are in clearance fit with the disc 16. The number of the stepped through holes 30 is 6, the stepped through holes 30 are arranged around the first through holes 29 in an annular array mode, each stepped through hole 30 comprises a first through hole section and a second through hole section, the second through hole section is arranged on the lower side of the first through hole section, the diameter of the second through hole section is larger than that of the first through hole section, and namely the lower end of each stepped through hole 30 is larger than that of the upper end.
The bracket part consists of a barb structure 15, a through hole cylinder 14 and a connecting rod 4. The barb structure 15 includes a threaded attachment post 31 and a barb portion 21 disposed at the lower portion. Barb portion 21 is four claw elastic construction, and barb portion includes the elastic wall and the first boss 23 of four vertical settings, and the surface that threaded connection post 31 was kept away from to first boss 23 is toper curved surface 24. The through hole column 14 is provided with a through hole 32 penetrating through the through hole column 14, a thread matched with the thread connecting column 31 is arranged in the through hole 32, and the thread connecting column 31 at the upper side of the barb structure 15 is connected with the through hole column 14 in a thread connection mode. Barb portion 21 of the below position of barb structure 15 tightens up under the effect of power, makes first boss 23 card of barb structure 15 below in the ladder through-hole 30 below of disc 16, realizes being connected of barb structure 15 and disc 16, and then links together through-hole cylinder 14, barb structure 15 and disc 16. In some alternative embodiments of the present invention, the upper end surface of the barb portion has a receptacle into which the lower end of the through-hole cylinder is inserted. In still other alternative embodiments of the present invention, referring to figures 12-13, the upper ends of the barb structures 15 are inserted into the through-bore 32 of the through-bore cylinder 14 such that the through-bore cylinder 14 and the barb structures 15 are connected together in an interference fit.
The connecting rod 4 includes a first link 300, a second link 400, a connecting rod male 8, a connecting rod nut 11, and a connecting rod female 20. The material of the connecting rod 4 can be elastic metal, and can also be made of other elastic materials. The first link 300 is provided at one end with an integrally formed right-angled sleeve, which is connected to the through-hole cylinder 14. The other end of the first link 300 is connected to the link male 8. The male head 8 of the connecting rod comprises a second boss 26 and a yielding hole 27, and the peripheral wall of the second boss 26 is provided with an annular bulge coaxial with the second boss. Be equipped with elasticity steel claw 19 and screw thread through-hole 9 on the connecting rod nut 11, the second boss inserts in the middle of the elasticity steel claw, and elasticity steel claw joint is protruding with the annular, reaches the purpose of connecting fixed connection pole public head 8 and connecting rod nut 11, and hole 27 of stepping down aligns with screw thread through-hole 9. Female head 20 of connecting rod sets up in the one end of second connecting rod 400, and the one end of female head 20 of connecting rod is equipped with threaded column 28, threaded column 28 and screw thread through-hole 9 threaded connection, and the other end of second connecting rod 400 passes through the right angle sleeve and connects in the cylindrical upper end of another through-hole. In some alternative embodiments of the invention, the connecting rod further comprises a third connecting rod, another connecting rod male, another connecting rod nut, and another connecting rod female. The third link 500 is located between the first link 300 and the second link 400, one end of the third link 500 is connected with the link nut 11 on the first link through another link female head, and the other end of the third link 500 is connected with the link female head 20 on the second link 400 through another link male head and another link nut.
One or more of the first, second and third links 300, 400 and 500 includes a first section disposed in parallel spaced apart relation to a second section, and a connecting section connecting the first and second sections.
In use, the bolt 3 and the disc 16 form a fixed connection, the steel plate 1 is placed at the position of the fracture for temporary fixation, and the thread part of the bolt 3 is inserted into the steel plate 1. The doctor is drilled with the electric drill, and ladder through-hole 30 sets up to 6, roughly selects two ladder through-holes according to two drilling positions, installs barb structure behind the ladder through-hole, then screws up bolt 3 and fixes steel sheet 1 with the bone, and after two bolts 3 tightened completely, but connecting rod 4 length direction's is adjustable, makes connecting rod 4 be in suitable position. The material of connecting rod 4 is elastic metal, the direction of rotation of two bolts is the same, line between the center of two discs and the line cross arrangement between two through-hole cylinders, through such a mode, when bolt 3 on the left side takes place to become flexible, can drive connecting rod 4 and take place the displacement, for example, move to the right, will become the thrust of right bolt 3 tightening, make bolt 3 rotate to the right, take place the displacement, but meanwhile, bolt 3 on the right has been tightened again and can not continue to tighten up, again continue to take place the displacement, on the contrary, bolt 3 on the right can produce the bounce at this moment, because connecting rod 4 is made by elastic material, bounce and pressure interact, hinder bolt 3 to rotate, just reached the purpose that prevents that bolt 3 from not flexible. Similarly, when the right bolt 3 becomes loose, the left bolt restricts the right bolt.
The length of connecting rod 4 can manually be adjusted, and manual rotation regulation connecting rod nut 11 in certain extent makes the length extension of connecting rod 4, can produce a thrust of screwing up to two bolts 3 about, can be better prevent that bolt 3 is not hard up, and the principle that produces the thrust of screwing up is the same with the principle when above-mentioned bolt 3 takes place to become flexible, and it is no longer repeated here. Conversely, if the connecting rod 4 is not properly extended, a loosening tension is generated on the left and right bolts 3, which can be eliminated by adjusting the length of the connecting rod 4. Further, after the length of the connecting rod 4 is determined, the bolt 3 can be loosened for some reasons, but because the existence of the connecting rod can not lead to the bolt 3 to be loosened much, the loosening can be only in a very small range, and a postoperative patient can rotate the nut of the connecting rod by himself to realize daily fastening of the bolt 3.
The above description is only about the preferred embodiment of the present invention, but it should not be understood as limiting the claims, and the present invention may be modified in other structures, not limited to the above structures. In general, all changes which come within the scope of the invention are intended to be embraced therein.
Claims (9)
1. An orthopedic fixation bracket is characterized by comprising two fixing parts, a bracket part and a steel plate; the fixing part comprises a bolt, a disc, a clamp spring and a baffle ring; the upper surface of the disc is provided with a first through hole, the shape of the lower end of the first through hole is matched with the shape of the outer surface of the head of the bolt, and the head of the bolt is inserted into the lower end of the first through hole; the retaining ring is positioned on the lower side of the head of the bolt, and the clamp spring is positioned on the lower side of the retaining ring; the steel plate is provided with two second through holes, and the threaded part of the bolt is inserted into and penetrates through the second through holes; the upper surface of the disc is provided with stepped through holes, the stepped through holes are arranged around the first through holes in an annular array mode, and the lower ends of the stepped through holes are larger than the upper ends of the stepped through holes; the bracket part comprises a connecting rod, two barb structures and two through hole cylinders; the two barb structures are respectively clamped into the lower ends of the stepped through holes on the two discs; the lower end of the through hole cylinder is arranged on the barb structure; the connecting rod comprises a first connecting rod, a second connecting rod, a male connecting rod head, a nut connecting rod and a female connecting rod head, one end of the first connecting rod is connected to the upper end of a through hole cylinder through a right-angle sleeve, the other end of the first connecting rod is connected with the male connecting rod head, and a abdicating hole is formed in the male connecting rod head; the connecting rod nut is provided with a threaded through hole aligned with the abdicating hole, and the connecting rod nut is arranged on the male head of the connecting rod; the female head of the connecting rod is a threaded column and is arranged at one end of the second connecting rod, the female head of the connecting rod is arranged in the threaded through hole, and the other end of the second connecting rod is connected to the upper end of the other through hole column through a right-angle sleeve;
the rotation directions of the two bolts are the same, and a connecting line between the centers of the two disks and a connecting line between the two through hole cylinders are arranged in a crossed mode.
2. The orthopedic fixation bracket of claim 1, wherein the barb structure comprises a barb portion, the barb portion is a four-jaw elastic structure, the barb portion comprises four vertically disposed elastic arms and four first bosses, and the first bosses are connected to lower ends of the elastic arms.
3. The orthopedic fixation bracket of claim 1, wherein the male connector rod head is provided with a second boss, and the peripheral wall of the second boss is provided with an annular projection coaxial with the second boss; the connecting rod screw cap is provided with an elastic steel claw, the second boss is inserted into the middle of the elastic steel claw, and the elastic steel claw is clamped in the annular bulge.
4. The orthopedic fixation support of claim 1, wherein the second through hole is a stepped hole, an upper end of the stepped hole is larger than a lower end, and the upper end of the stepped hole is in clearance fit with the disc.
5. The orthopedic fixation bracket of claim 1, wherein the connecting rod is made of an elastic material.
6. The orthopedic fixation bracket of claim 1, wherein the connecting rod further comprises a third connecting rod, another connecting rod male, another connecting rod nut, and another connecting rod female; the third connecting rod set up in between first connecting rod and the second connecting rod, and the one end of third connecting rod is connected with the connecting rod nut on the first connecting rod through another connecting rod female head, and the other end of third connecting rod is connected with the connecting rod female head on the second connecting rod through another connecting rod male head and another connecting rod nut.
7. The orthopedic fixation bracket of claim 6, wherein one or more of the first, second, and third links comprises a first section, a second section, and a connecting section, the first section being disposed in parallel spaced relation to the second section, the connecting section connecting the first and second sections.
8. The orthopedic fixation bracket of claim 1, wherein the barb structure comprises a threaded connection post and a barb portion disposed at the lower portion, the barb portion being snapped into the lower end of the stepped through hole, the threaded connection post being located within the stepped through hole; the lower end of the through hole cylinder is arranged on the threaded connecting column.
9. The orthopedic fixation bracket of claim 1, wherein the barb structure has an insertion hole on the upper end surface, and the lower end of the through-hole cylinder is inserted into the insertion hole; or the through-hole cylinder is provided with a through hole, and the upper end of the barb structure is inserted into the through hole of the through-hole cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482529.7A CN111603227B (en) | 2020-05-30 | 2020-05-30 | Orthopedics fixed bolster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482529.7A CN111603227B (en) | 2020-05-30 | 2020-05-30 | Orthopedics fixed bolster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111603227A CN111603227A (en) | 2020-09-01 |
| CN111603227B true CN111603227B (en) | 2021-05-14 |
Family
ID=72201970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010482529.7A Expired - Fee Related CN111603227B (en) | 2020-05-30 | 2020-05-30 | Orthopedics fixed bolster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111603227B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113598916B (en) * | 2021-08-11 | 2022-07-08 | 中国人民解放军西部战区总医院 | Reset fixing frame for orthopedics department |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TR199701377A2 (en) * | 1997-11-17 | 1999-06-21 | Kutlu Haci | Stable dynamic axial fixator. |
| US8747443B2 (en) * | 2009-10-21 | 2014-06-10 | International Spinal Innovations, Llc | Spinal plate with compression locking |
| CN201759656U (en) * | 2010-07-21 | 2011-03-16 | 青岛大学医学院附属医院 | Orthopaedic assembled steel plate screw fixing system |
| CN206499521U (en) * | 2016-11-21 | 2017-09-19 | 管玉杰 | Flatfoot corrective surgery bone combination fastener |
-
2020
- 2020-05-30 CN CN202010482529.7A patent/CN111603227B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN111603227A (en) | 2020-09-01 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210426 Address after: No.10 Lixiang West Road, quantang street, Changsha County, Changsha City, Hunan Province 410000 Applicant after: Changsha Xingsha nianlun orthopedic hospital Co.,Ltd. Address before: 450000 Construction No. 50 East Road, 27 District, Henan, Zhengzhou Applicant before: Fang Guiru |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |