CN112826579A - Static-dynamic conversion type herringbone ridge locking dynamic pressure steel plate system - Google Patents
Static-dynamic conversion type herringbone ridge locking dynamic pressure steel plate system Download PDFInfo
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- CN112826579A CN112826579A CN201911214196.3A CN201911214196A CN112826579A CN 112826579 A CN112826579 A CN 112826579A CN 201911214196 A CN201911214196 A CN 201911214196A CN 112826579 A CN112826579 A CN 112826579A
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- steel plate
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 47
- 239000010959 steel Substances 0.000 title claims abstract description 47
- 230000006835 compression Effects 0.000 claims abstract description 46
- 238000007906 compression Methods 0.000 claims abstract description 46
- 230000003068 static effect Effects 0.000 claims abstract description 33
- 208000010392 Bone Fractures Diseases 0.000 claims description 32
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000002980 postoperative effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 206010017076 Fracture Diseases 0.000 description 31
- 210000000988 bone and bone Anatomy 0.000 description 12
- 230000035876 healing Effects 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 206010065687 Bone loss Diseases 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004938 stress stimulation Effects 0.000 description 2
- 206010017088 Fracture nonunion Diseases 0.000 description 1
- 206010020100 Hip fracture Diseases 0.000 description 1
- 208000005214 Poroma Diseases 0.000 description 1
- 201000001013 eccrine acrospiroma Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
- A61B17/8019—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones where the means are a separate tool rather than being part of the plate
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
Abstract
The invention provides a static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system, which comprises a near-segment plate, a far-segment plate, a conversion plate, a locking nail and a compression clamp. The invention designs a static-dynamic conversion type herringbone ridge locking dynamic compression steel plate system for solving the problem that the internal fixture of a dynamic compression mode of a steel plate screw system which is convenient to use is not available at present, can freely convert a static fixing mode and a dynamic fixing mode, can allow partial load bearing and early movement, accelerates postoperative rehabilitation, and achieves the effect of reducing the fracture disconnection probability.
Description
Technical Field
The invention belongs to the technical field of freely switching between static and dynamic fixing modes of a steel plate screw for fixing fracture, and particularly relates to a static and dynamic switching type herringbone ridge locking dynamic compression steel plate system.
Background
The steel plate screw system is the mainstream fixation method for treating fracture at present, but most of all are the fixation modes which are absolutely static stable, i.e. no micro-motion in any form is allowed between the fracture ends, but the proper stress stimulation is beneficial to the fracture healing process. Therefore, the current international treatment mode for the fracture is converted from the past absolute stable static fixation mode into a reasonable dynamic compression fixation mode, and the proper pressure stress stimulation to the fracture end can effectively improve the generation of callus and reduce the incidence rate of delayed fracture healing. There is still a lack of internal fixtures for the dynamic compression mode of the plate screw system that are convenient to use.
Disclosure of Invention
The invention aims to provide a static-dynamic conversion type herringbone ridge locking dynamic compression steel plate system which can freely switch into a dynamic fixing mode and a static fixing mode when being used for internal fixation of long tubular bones, short bones, flat bones and other fractures, thereby promoting poroma generation, and reducing delayed fracture healing and bone nonunion.
In order to solve the technical problems, the invention adopts the following technical scheme:
a static-dynamic conversion type herringbone ridge locking dynamic compression steel plate system is made of metal or alloy and comprises a proximal plate, a distal plate, a conversion plate, a locking nail and a compression clamp 5. The near-segment plate is in a long rectangular shape, screw holes are distributed in the body part, one end of the near-segment plate is provided with a groove, the bottom wall in the groove is provided with a herringbone ridge structure, the herringbone ridges are arranged in a imbricated mode and have a certain inclination angle, and two sides of the body part are respectively provided with an L-shaped pressurizing hole. One end of the far-section plate is provided with a bulge, one side wall of the bulge is provided with a herringbone ridge structure which is arranged in a shingled mode and has a certain inclination angle, two sides of the body part are respectively provided with an L-shaped pressurizing hole, and screw holes are distributed in the body part. The conversion board is in a narrow and long strip shape, one end of the conversion board is provided with screw holes which are arranged densely and longitudinally and are provided with internal threads, and the other end of the conversion board is provided with a bulge which is vertical to the conversion board and is provided with external threads. The locking nail is expanded in head and provided with an inner hexagonal hole, the diameter of the body part is smaller than that of the head part, and the head part and the body part are both provided with external threads. The two tips of the pressure pliers are hook-shaped with certain radian and are connected with the handle through a shaft.
The above-mentioned structure can be assembled to form steel plate screw system capable of dynamically pressing fracture line, and said system can be converted from dynamic fixation into static fixation by means of conversion plate. By using the system, a static fixing mode and a dynamic fixing mode can be freely converted, and postoperative rehabilitation is accelerated, so that the probability of fracture nonunion is reduced.
The static-dynamic inversion type herringbone ridge locking dynamic pressing steel plate system is made of metal or alloy.
According to the static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system, the herringbone ridge structure is arranged on the bottom wall in the groove at one end of the proximal plate.
The static and dynamic conversion herringbone ridge locking dynamic compression steel plate system is characterized in that the herringbone ridges are arranged in a imbricated mode and have a certain inclination angle.
The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system is characterized in that the two sides of the near-segment plate body part are respectively provided with an L-shaped compression hole.
The static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system is characterized in that one end of the far-section plate is provided with a protrusion, and one side wall of the protrusion is provided with a herringbone ridge.
The static and dynamic conversion herringbone ridge locking dynamic compression steel plate system is characterized in that the herringbone ridges of the far-section plates are arranged in a shingled manner and have a certain inclination angle.
In the static-dynamic conversion herringbone ridge locking dynamic compression steel plate system, the two sides of the far-section plate body part are respectively provided with the L-shaped compression holes.
The static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system is characterized in that the conversion plate is in a narrow and long strip shape, and one end of the conversion plate is provided with screw holes which are densely and longitudinally arranged.
The static and dynamic inversion type ridge locking dynamic compression steel plate system is characterized in that one end of the inversion plate is provided with a protrusion perpendicular to the inversion plate, and the inversion plate is provided with an external thread.
According to the static and dynamic conversion type herringbone ridge locking dynamic pressurizing steel plate system, two tips of the pressurizing pliers are hook-shaped with certain radian and are connected with the handle through the shaft.
The invention designs a static-dynamic conversion type herringbone ridge locking dynamic compression steel plate system for solving the problem that the internal fixture of a dynamic compression mode of a steel plate screw system which is convenient to use is not available at present, can freely convert a static fixing mode and a dynamic fixing mode, can allow partial load bearing and early movement, accelerates postoperative rehabilitation, and achieves the effect of reducing the fracture disconnection probability.
Compared with the prior art, the invention has the advantages and positive effects that:
the static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system can conveniently convert fracture fixation of long and short tubular bones or flat bones from dynamic fixation into static fixation by utilizing a uniquely designed conversion plate. The herringbone ridges which are arranged in a imbricated manner in the groove of the near-section plate of the static and dynamic conversion type herringbone ridge locking dynamic pressurizing steel plate system and the herringbone ridges which are arranged in an imbricated manner on the protrusion of the far-section plate matched with the herringbone ridges can move in a single direction relatively in a certain range, so that the separation of the fracture sections caused by reverse movement is avoided, the fracture sections can be compressed by the single movement, the load of the early part of a patient is allowed to a certain extent, the risks of bone loss, fracture disconnection or delayed connection caused by long-term no load are reduced, and the life quality of the patient is improved. The compression forceps and the compression holes on the far-section plate and the near-section plate can compress the fracture line and are also beneficial to fracture healing. The static and dynamic conversion type herringbone ridge locking dynamic pressurizing steel plate system is convenient to use, simple to operate and novel and reasonable in design.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic front view of the overall assembly structure (dynamic fixation) of an embodiment of the static-dynamic inversion type herringbone ridge locking dynamic compression steel plate system of the present invention;
FIG. 2 is a schematic perspective view of an overall assembly structure (dynamic fixation) of an embodiment of the static-dynamic inversion type herringbone ridge locking dynamic compression steel plate system of the present invention;
FIG. 3 is a schematic front view of the overall assembly structure (static fixation) of an embodiment of the static-dynamic inversion type ridge locking dynamic compression plate system of the present invention;
FIG. 4 is a perspective view (static fixation) of the overall assembly structure of an embodiment of the static-dynamic transformation type herringbone ridge locking dynamic compression steel plate system of the present invention;
FIG. 5 is a schematic front view of the proximal plate of the present invention;
FIG. 6 is a schematic perspective view of the proximal plate of the present invention;
FIG. 7 is a schematic front view of the distal plate of the present invention;
FIG. 8 is a perspective view of the distal plate of the present invention;
FIG. 9 is a first schematic perspective view of the conversion plate of the present invention;
FIG. 10 is a schematic perspective view of a second embodiment of the conversion plate of the present invention;
FIG. 11 is a schematic structural view of the locking pin;
FIG. 12 is a schematic front view of the present invention;
fig. 13 is a perspective view of the pressing forceps of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
At present, the international treatment mode of fracture is converted from the past absolute stable static fixation mode into a reasonable dynamic compression fixation mode, and the proper compression stress on the fracture end can effectively stimulate the generation of callus and reduce the incidence rate of nonunion. At present, dynamic compression internal fixation devices are mostly focused on dynamic screws of hip fracture, the dynamization of intramedullary nails and the like, and internal fixation objects in a dynamic compression mode of a steel plate screw system used for long tubular bones, short bones, flat bones and the like are still lacked. The invention designs a static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system for solving the problems, can freely convert dynamic and static fixing modes, reduces delayed fracture healing and nonunion, and is convenient for clinical use.
The following describes an implementation of the present invention with reference to the following embodiments:
as shown in fig. 1-4, the present embodiment proposes a dynamic herringbone ridge locking and pressing steel plate system made of metal or alloy, comprising a proximal plate 10, a distal plate 20, a conversion plate 30, a locking pin 40 and a pressing jaw 50. The five-part structure is assembled to form a steel plate screw system capable of dynamically pressurizing the fracture line, and the system can be converted from dynamic fixation to static fixation by using a conversion plate.
Specifically, as shown in fig. 5 and 6, the proximal plate 10 has a thin plate-like long rectangular structure, a body portion is provided with a plurality of screw holes 11, one end of each screw hole is provided with a groove 12, a bottom wall in the groove 12 is provided with a herringbone ridge structure 13, the herringbone ridge structures 13 are arranged in a shingled manner and have a certain inclination angle, and both sides of the body portion of the proximal plate 10 are respectively provided with an L-shaped pressurizing hole 14.
As shown in fig. 7 and 8, the distal plate 20 is also in a long rectangular structure, the body is provided with a plurality of screw holes 21, one end of each screw hole is provided with a protrusion 22, one side wall of each protrusion 22 is also provided with a herringbone ridge structure 23 in a shingled arrangement, the herringbone ridge structure is provided with a certain inclination angle, and two sides of the body of the distal plate 20 are also provided with an L-shaped pressurizing hole 24. As shown in fig. 1 and 2, the distal plate 20 and the proximal plate 10 are matched with each other by the herringbone ridge structure to form a steel plate screw system with unidirectional motion, that is, in the dynamic fixation mode, the herringbone ridges in the imbricated arrangement in the groove of the proximal plate 10 and the herringbone ridges in the imbricated arrangement on the protrusion of the distal plate 20 matched with the grooves can move relatively in one direction within a certain range, so that the separation of the fractured segments caused by reverse motion is avoided, the fractured segments can be compressed by the unidirectional motion, thus the early part of the patient is allowed to bear weight to a certain extent, the risk of bone loss, fracture disconnection or delayed connection caused by no load for a long time is reduced, and the life quality of the patient is also improved.
As shown in fig. 9 and 10, the switching plate 30 has a narrow and long bar shape, and has a plurality of screw holes 31 arranged longitudinally at one end and a protrusion 32 perpendicular to the one end, wherein the protrusion 32 has an external thread.
As shown in fig. 11, the locking nail 40 includes a head 41 having an enlarged head with a hexagonal socket and a body 42 having a smaller diameter than the head, both the head and the body having external threads.
As shown in fig. 12 and 13, the pressing forceps 50 includes a handle 51, a shaft 52, and two tips 53, wherein the two tips 53 are hook-shaped with a certain curvature and are connected with the handle 51 through the shaft 52. The compression forceps 50 and the compression holes on the distal plate 20 and the proximal plate 10 can be used for compressing the fracture line and also are beneficial to fracture healing.
After the fracture section is fixed by adopting the proximal plate and the distal plate of the embodiment, a steel plate screw system capable of dynamically pressurizing the fracture line is formed, and the system can be converted from dynamic fixation to static fixation by utilizing a conversion plate, so that the healing of the fracture end is facilitated, and the risk of bone nonunion is reduced.
When in use, the fracture end is exposed and reset, the fracture end is temporarily fixed, the proximal plate 10 is placed at the proper position of one end of the fracture line, and the screw is implanted into the screw hole of the body part of the proximal plate 10 to fix the proximal plate on the bone. The other end of the fracture line is provided with a far-section plate 20 at a proper position, a bulge 22 at one end of the far-section plate 20 is inserted into a groove 12 at one end of the near-section plate 10 for a certain distance, and the far-section plate 20 is fixed on the bone through 1 screw in a screw hole of the body of the far-section plate 20. The tips of the pressing forceps 50 are inserted into the L-shaped pressing holes on both sides of the body of the distal plate 20 and the proximal plate 10, respectively, pressure is applied to press the fractured ends, and the remaining screws are screwed into the screw holes of the proximal plate 10 and the distal plate 20 to complete the final dynamic fixation. If the system needs to be changed from dynamic fixation to static fixation, a screw at a proper position of the distal plate 20 is removed, the conversion plate 30 is placed on the surface of the distal plate 20, the protrusion 32 with an external thread at one end of the conversion plate 30 is screwed into the screw hole, the screwing depth is adjusted to match the hole at the other end of the conversion plate 30 with the screw hole at a proper position of the proximal plate 10, the screw at the position of the proximal plate 10 is removed, the locking nail 40 is screwed into the screw holes of the conversion plate 30 and the proximal plate 10 in sequence to fix, and the conversion plate 30, the distal plate 20 and the proximal plate 10 are connected into a whole, as shown in fig. 3 and 4, so that the static fixation can be completed. Conversely, if the conversion is to be a dynamic fixation, the locking pin 40 and the conversion plate 30 are removed.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system comprises a near-segment plate and a far-segment plate, and is characterized in that: the bone fracture fixation device further comprises a conversion plate, a locking nail and a pressurizing clamp, the structure is assembled, a steel plate screw system capable of dynamically pressurizing the fracture line can be formed, and the system can be converted from dynamic fixation to static fixation through the conversion plate.
2. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 1, wherein: the near-segment plate is of a long rectangular structure, a plurality of screw holes are formed in the body part, a groove is formed in one end of the near-segment plate, and herringbone ridge structures are arranged on the bottom wall in the groove and arranged in a shingled mode and have a certain inclination angle.
3. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 2, wherein: two sides of the plate body part at the near section are respectively provided with an L-shaped pressurizing hole.
4. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 3, wherein: the far-section plate is of a long rectangular structure, a plurality of screw holes are formed in the body part, a protrusion is arranged at one end of the body part, herringbone ridge structures which are arranged in a imbricated mode are arranged on one side wall of the protrusion and have a certain inclination angle, and the far-section plate and the near-section plate are matched through the herringbone ridge structures to form a steel plate screw system moving in a single direction.
5. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 4, wherein: two sides of the far-section plate body part are respectively provided with an L-shaped pressurizing hole.
6. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 1, wherein: the conversion plate is in a narrow and long strip shape, one end of the conversion plate is provided with screw holes which are densely and longitudinally arranged, the other end of the conversion plate is provided with a protrusion which is vertical to the conversion plate, and the protrusion is provided with an external thread.
7. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 1, wherein: the locking nail comprises a head part and a body part, wherein the head part is expanded and is provided with a hexagon socket, the diameter of the body part is smaller than that of the head part, and the head part and the body part are both provided with external threads.
8. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 1, wherein: the pressurizing forceps comprise a handle, a shaft and two tips, wherein the two tips are hook-shaped with certain radian and are connected with the handle through the shaft.
9. The static-dynamic conversion herringbone ridge locking dynamic compression steel plate system of claim 1, wherein: the static and dynamic conversion type herringbone ridge locking dynamic compression steel plate system is made of metal or alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214196.3A CN112826579A (en) | 2019-12-02 | 2019-12-02 | Static-dynamic conversion type herringbone ridge locking dynamic pressure steel plate system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214196.3A CN112826579A (en) | 2019-12-02 | 2019-12-02 | Static-dynamic conversion type herringbone ridge locking dynamic pressure steel plate system |
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| CN112826579A true CN112826579A (en) | 2021-05-25 |
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| CN201911214196.3A Pending CN112826579A (en) | 2019-12-02 | 2019-12-02 | Static-dynamic conversion type herringbone ridge locking dynamic pressure steel plate system |
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| WO2017080482A1 (en) * | 2015-11-10 | 2017-05-18 | 张英泽 | Internal fixation plate |
| US20190314066A1 (en) * | 2016-10-18 | 2019-10-17 | Hua Chen | A wing-shaped angle steel plate and a bone shaft fixation system |
| KR102038359B1 (en) * | 2019-06-13 | 2019-10-30 | 김윤용 | Assembly method for bone plate |
| CN211271091U (en) * | 2019-12-02 | 2020-08-18 | 青岛大学附属医院 | Static-dynamic conversion type dynamic pressurizing steel plate system |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030060828A1 (en) * | 2001-06-06 | 2003-03-27 | Michelson Gary K. | Dynamic multilock anterior cervical plate system having non-detachably fastened and moveable segments, instrumentation, and method for installation thereof |
| US20070055254A1 (en) * | 2005-08-18 | 2007-03-08 | Biomed Est. | Lateral implant system and apparatus for reduction and reconstruction |
| US20100082029A1 (en) * | 2006-04-03 | 2010-04-01 | Ib Medical, Llc | Static Compression Device |
| US20070293864A1 (en) * | 2006-06-16 | 2007-12-20 | Reimels William J | Bone plate system providing dynamic compression |
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