CN216876547U - Three-dimensional bone plate nail combined fixing device - Google Patents
Three-dimensional bone plate nail combined fixing device Download PDFInfo
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- CN216876547U CN216876547U CN202120682950.2U CN202120682950U CN216876547U CN 216876547 U CN216876547 U CN 216876547U CN 202120682950 U CN202120682950 U CN 202120682950U CN 216876547 U CN216876547 U CN 216876547U
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- nail
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- pressing block
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Abstract
The utility model discloses a three-dimensional bone fracture plate and nail combined fixing device, and relates to the field of orthopedics internal fixation instruments, wherein the device comprises a bone fracture plate (1), at least one pressing block (6), a locking nail (7), a pressurizing nail (8), a pressing block locking nail (9), a cable locking nail (10), a cable hoop (11) and a cable (12). When the bone plate is used, the locking bone nail (7) and the pressurizing bone nail (8) which are arranged on the bone plate (1) and the locking bone nail (7) and the pressurizing bone nail (8) which are alternately arranged on the pressing block (6) form a three-dimensional structure, and the three-dimensional structure comprises a cable (12) which is cerclaged, so that the whole device realizes three-dimensional dynamic locking and fixing.
Description
Technical Field
The utility model discloses a three-dimensional bone fracture plate and nail combined fixing device, and relates to the field of orthopedic internal fixation instruments.
Background
As the physiological functions and the compensatory ability of the old are reduced, the bone mass is reduced, the fracture is loose, the incidence rate of accidental falling is high, and in addition, China enters an aging society, the number of orthopedic elderly patients in China is increased year by year. At present, the traditional metal bone plate system is applied to the conditions of unstable fracture fixation and bone nail falling of loose fracture.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a three-dimensional bone plate and nail combined fixing device, which is used for solving the problems of unstable fixation and falling-off of bone nails of a locking bone plate in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a three-dimensional bone plate nail combined fixing device is characterized by comprising a bone plate (1), at least one pressing block (6), a locking nail (7), a pressurizing nail (8), a pressing block locking nail (9), a cable locking nail (10), a cable hoop (11) and a cable (12); the bone fracture plate (1) is longitudinally provided with at least one dynamic pressurization locking hole (2), a low-stress locking hole groove (3), a pressure block groove (4) and an end positioning sliding groove (5); one end of the pressing block (6) is provided with a pressing block body (601) and a pressing block locking nail through hole (602), the other end of the pressing block (6) is provided with a second locking hole (603) or a cable locking nail hole (604) and a cable hook (607), and the middle parts of the pressing block and the pressing block are connected by a thinner connecting body (606); the locking bone nail (7) is provided with a nail cap taper locking external thread (701) and a first nail body embedding thread (702); the pressurizing bone nail (8) is provided with a first nail cap (801) and a second nail body embedding thread (802); the pressing block locking nail (9) is provided with a nail head (901) and a pressing block locking nail thread (902); the cable lock pin (10) is provided with a second pin cap (1001) and cable lock pin threads (1002); the cable hoop (11) is a tubular C-shaped ring.
Preferably, the bone fracture plate (1) is characterized in that a dynamic pressurization locking hole (2) is arranged, the dynamic pressurization locking hole (2) is a composite single hole formed by overlapping a first locking hole (201) and a dynamic pressurization hole (202), a taper internal thread (203) is arranged in the first locking hole (201), and the taper internal thread (203) of the first locking hole (201) is matched with a nail cap taper locking external thread (701) of the locking bone nail (7) to form nail plate locking connection; the dynamic pressurizing hole (202) and the first locking hole (201) of the dynamic pressurizing locking hole (2) are matched with the first nail cap (801) of the pressurizing bone nail (8) to realize nail plate sliding, fracture broken end pressurizing and plate nail non-locking connection.
Preferably, the low stress locking hole groove (3) is characterized by being provided with at least one tapered threaded hole (301) and a stress dispersion groove (302); the taper threaded hole (301) of the low-stress locking hole groove (3) is matched with the nail cap taper locking external thread (701) of the locking bone nail (7) to form plate nail locking connection.
Preferably, the bone plate (1) is characterized in that dynamic compression locking holes (2) are arranged at two ends of the bone plate (1), and the low-stress locking hole grooves (3) are arranged at the middle section of the bone plate (1).
Preferably, the bone fracture plate (1) is characterized in that the pressing block grooves (4) arranged on one side or two sides are blind grooves and are matched with the pressing block bodies (601) of the pressing blocks (6) to form a lap joint structure; the pressure block grooves (4) are arranged between the dynamic pressure locking holes (2) or the low-stress locking hole grooves (3), and the width of the pressure block grooves (4) is gradually increased along the middle of the bone fracture plate (1) towards the end; the pressing block groove (4) is internally provided with a pressing block locking nail hole (401), the pressing block locking nail hole (401) is provided with an internal thread, the pressing block locking nail thread (902) penetrates through the pressing block locking nail through hole (602) to form threaded connection with the pressing block locking nail hole (401), and the nail head (901) is pressed on the pressing block locking nail through hole (602) to form locking connection of the pressing block (6) and the bone fracture plate (1).
Preferably, the locking bone nail (7) is characterized in that a nail cap taper locking external thread (701) and a first nail body embedding thread (702) are arranged, wherein the nail cap is provided with a taper external thread, the nail body is provided with an embedding thread, the taper external thread of the nail cap taper locking external thread (701) is matched with a power pressurizing locking hole (2) and a low-stress locking hole groove (3) on the bone fracture plate (1) and a taper internal thread of a second locking hole (603) on the pressing block (6) and combined to form plate nail and hook nail locking connection; the thinner connecting body (606) can be bent to adjust the insertion angle of the locking bone nail (7) on the pressing block (6).
Preferably, the pressurizing bone nail (8) is characterized in that a first nail cap (801) and a second nail body embedding thread (802) are arranged, wherein the nail cap is in a ball head shape, the nail body is provided with the embedding thread, and the first nail cap (801) is matched with the power pressurizing locking hole (2) of the bone plate (1) to form plate nail and hook nail non-locking connection; when the compression bone nail (8) is eccentrically placed, the first nail cap (801) can slide into the first locking hole (201) along the power compression hole (202) of the power compression locking hole (2), so that the plate nail is extruded and moved, and the fracture end is pressurized.
Preferably, the pressing block (6) is characterized in that a cable hook (607) is arranged, and a cable (12) and a cable hoop (11) are arranged in the cable hook (607); the cable (12) is sleeved into the cable hoop (11) and clamped into the cable hook (607), the cable lock nail hole (604) is provided with internal threads and matched with cable lock nail threads (1002) of the cable lock nail (10), and the second nail cap (1001) extrudes the cable hoop (11) to enable the cable, the bone fracture plate (1) and the pressing block (6) to form a cerclage fixed connection.
Compared with the prior art, the utility model has the following beneficial effects: the bone screw that puts into on coaptation board (1) and the crisscross bone screw that puts into on briquetting (6) constitute three-dimensional nail effect of putting to through the board hook nail combination locking connection three-dimensional structure that constitutes, make whole internal fixation device constitute three-dimensional frame structure, the radian has improved the anti-extraction power and the internal fixation intensity of three-dimensional power locking coaptation board's system, effectively avoids the bone nail to drop, reduces disconnected nail and break the board, and the fixed deformity healing that causes unstably. In addition, through cable cerclage and side block hook screw, make whole device realize three-dimensional dynamic locking fixed, guaranteed that the kibbling bone piece can not squint the position after reseing after the fixed of kibbling fracture.
Drawings
FIG. 1 is a schematic structural view of a three-dimensional bone plate and nail combination fixing device of the present invention;
FIG. 2 is a schematic view of a bone plate of the present invention;
FIG. 3 is a schematic view of the construction of the power pressurizing lock hole of the present invention;
FIG. 4 is a schematic view of the low stress locking hole slot of the present invention;
FIG. 5 is a structural cross-sectional view of a segment groove of the present invention;
FIG. 6 is a schematic structural view of a briquette according to the present invention;
FIG. 7 is a schematic structural view of a locking bone nail of the present invention;
FIG. 8 is a schematic view of the construction of the compression bone screw of the present invention;
FIG. 9 is a schematic view of the construction of the locking stud of the present invention;
fig. 10 is a schematic structural view of the cable lock pin and the cable clamp of the present invention.
Wherein, 1-bone fracture plate, 2-dynamic pressure locking hole, 201-first locking hole, 202-dynamic pressure hole, 203-taper internal thread, 3-low stress locking hole groove, 301-taper threaded hole, 302-stress dispersion groove, 4-pressing block groove, 401-pressing block locking nail hole, 5-end positioning sliding groove, 6-pressing block, 601-pressing block body, 602-pressing block locking nail through hole, 603-second locking hole, 604-cable locking nail hole, 605-taper thread, 606-connecting body, 607-cable hook, 7-locking bone nail, 701-nail cap taper locking external thread, 702-first nail body embedding thread, 8-pressure bone nail, 801-first nail cap, 802-second nail body embedding thread, 9-pressing block locking nail, 901-nail head, 902-pressing block lock nail thread, 10-cable lock nail, 1001-second nail cap, 1002-lock nail thread, 11-tie hoop and 12-cable.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The first embodiment is as follows:
fig. 1 to 9 show an embodiment of the present invention: the device is used for placing a locking bone nail (7) or a pressurizing bone nail (8) into the dynamic pressurizing locking hole (2) of the bone fracture plate (1) in the fracture treatment, and the locking bone nail (7) is placed into the low-stress locking hole groove (3), so that the fracture pressurizing locking fixation is realized.
The dynamic pressurizing hole (202) and the first locking hole (201) of the dynamic pressurizing locking hole (2) are matched with a first nail cap (801) of a pressurizing bone nail (8) to realize nail plate sliding, fracture broken end pressurizing and plate nail non-locking connection.
The dynamic pressurizing locking hole (2) is used together with the locking bone nail (7) and the pressurizing bone nail (8), and realizes unidirectional and universal matching, locking and non-locking connection according to requirements.
The stress dispersion groove (302) arranged in the middle of the low-stress locking hole groove (3) is a through-plate through groove, the stress dispersion groove (302) can relieve the stress of the locking bone nail (7) and the taper threaded hole (301) during stress conduction, and stress concentration and metal fatigue fracture of the locking bone nail (7) and the taper threaded hole (301) are effectively avoided;
the pressing block grooves (4) formed in one side or two sides of the bone fracture plate (1) are blind grooves, the pressing block bodies (601) of the pressing blocks (6) are matched to form a lap joint structure, the locking bone nails (7) are placed in through the second locking holes (603), and the thin connecting body (606) can be bent to adjust the placing angles of the locking bone nails (7) on the pressing blocks (6), so that the combined three-dimensional dynamic internal fixation of fracture is realized, the anti-pulling force of the three-dimensional dynamic locking bone fracture plate nail system for fixing fracture is increased, and the fixing stability of the three-dimensional dynamic locking bone fracture plate nail system is improved.
The bone plate (1) is provided with a pressing block groove (4) at the side between locking bone nails (7) or pressing bone nails (8), so that the rigidity between nail holes is reduced, and the stress of the nail hole part is relieved.
The width of the pressing block groove (4) on the bone fracture plate (1) is gradually increased from the middle part to the end, so that the rigidity of the end of the bone fracture block is reduced, the stress of the end is relieved, and the end screw is prevented from being pulled out and broken.
The second embodiment:
FIG. 10 shows an embodiment of the present invention: on the basis of the first embodiment, the cable hoop (11) is used for annularly tying the cable (12) to form a fixed connection through the extrusion of the cable hook (607) and the cable locking nail (10), and the cable (12) surrounds the comminuted fracture part to fix the comminuted fracture fragment. Meanwhile, the bone fracture plate (1) is placed into the locking bone nail (7), the pressurizing bone nail (8) or the cable (12) through the pressing block groove (4) and the pressing block (6) to be configured, so that three-dimensional fixation is achieved, stress of the locking bone nail (7) and stress of the pressurizing bone nail (8) are relieved, fixing strength is improved in a large radian, operation adaptation diseases are enlarged, and a better fracture treatment means is provided for clinic.
While the preferred embodiments of the present invention have been described, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (8)
1. A three-dimensional bone plate nail combined fixing device is characterized by comprising a bone plate (1), at least one pressing block (6), a locking nail (7), a pressurizing nail (8), a pressing block locking nail (9), a cable locking nail (10), a cable hoop (11) and a cable (12); the bone fracture plate (1) is longitudinally provided with at least one dynamic pressurization locking hole (2), a low-stress locking hole groove (3), a pressure block groove (4) and an end positioning sliding groove (5); one end of the pressing block (6) is provided with a pressing block body (601) and a pressing block locking nail through hole (602), the other end of the pressing block (6) is provided with a second locking hole (603) or a cable locking nail hole (604) and a cable hook (607), and the middle parts of the pressing block and the pressing block are connected by a thinner connecting body (606); the locking bone nail (7) is provided with a nail cap taper locking external thread (701) and a first nail body embedding thread (702); the compression bone nail (8) is provided with a first nail cap (801) and a second nail body embedding thread (802); the pressing block locking nail (9) is provided with a nail head (901) and a pressing block locking nail thread (902); the cable lock pin (10) is provided with a second pin cap (1001) and cable lock pin threads (1002); the cable hoop (11) is a tubular C-shaped ring.
2. The three-dimensional bone plate and nail combined fixing device is characterized in that the bone plate (1) is provided with a dynamic pressurization locking hole (2), the dynamic pressurization locking hole (2) is a composite single hole formed by overlapping a first locking hole (201) and a dynamic pressurization hole (202), a taper internal thread (203) is arranged in the first locking hole (201), and the taper internal thread (203) of the first locking hole (201) is matched with a nail cap taper locking external thread (701) of the locking bone nail (7) to form nail plate locking connection; the dynamic pressurizing hole (202) and the first locking hole (201) of the dynamic pressurizing locking hole (2) are matched with the first nail cap (801) of the pressurizing bone nail (8) to realize nail plate sliding, fracture broken end pressurizing and plate nail non-locking connection.
3. The three-dimensional bone plate and nail combined fixing device of claim 1, wherein the low-stress locking hole groove (3) is provided with at least one tapered threaded hole (301) and a stress dispersion groove (302); the taper threaded hole (301) of the low-stress locking hole groove (3) is matched with the nail cap taper locking external thread (701) of the locking bone nail (7) to form plate nail locking connection.
4. The three-dimensional bone plate and nail combined fixing device of claim 1, wherein the dynamic pressure locking holes (2) are arranged at two ends of the bone plate (1), and the low-stress locking hole grooves (3) are arranged at the middle section of the bone plate (1).
5. The three-dimensional bone plate and nail combined fixing device is characterized in that the pressing block grooves (4) arranged at one side or two sides of the bone plate (1) are blind grooves and are matched with the pressing block bodies (601) of the pressing blocks (6) to form a lap joint structure; the pressure block grooves (4) are arranged between the dynamic pressure locking holes (2) or the low-stress locking hole grooves (3), and the width of the pressure block grooves (4) is gradually increased along the middle of the bone fracture plate (1) towards the end; the pressing block groove (4) is internally provided with a pressing block locking nail hole (401), the pressing block locking nail hole (401) is provided with an internal thread, the pressing block locking nail thread (902) penetrates through the pressing block locking nail through hole (602) to form threaded connection with the pressing block locking nail hole (401), and the nail head (901) is pressed on the pressing block locking nail through hole (602) to form locking connection of the pressing block (6) and the bone fracture plate (1).
6. The three-dimensional bone plate nail combined fixing device as claimed in claim 1, wherein the locking bone nail (7) is provided with a nail cap taper locking external thread (701) and a first nail body embedding thread (702), wherein the nail cap is provided with the taper external thread, the nail body is provided with the embedding thread, the taper external thread of the nail cap taper locking external thread (701) is matched with the taper internal threads of the dynamic pressurization locking hole (2) and the low stress locking hole groove (3) on the bone plate (1) and the second locking hole (603) on the pressing block (6) and is combined to form a plate nail and hook nail locking connection; the thinner connecting body (606) can be bent to adjust the insertion angle of the locking bone nail (7) on the pressing block (6).
7. The three-dimensional bone plate nail combined fixing device is characterized in that the pressurizing bone nail (8) is provided with a first nail cap (801) and a second nail body embedded thread (802), wherein the nail cap is in a ball head shape, the nail body is provided with the embedded thread, and the first nail cap (801) is matched with the power pressurizing and locking hole (2) of the bone plate (1) to form a plate nail and hook nail non-locking connection; when the compression bone nail (8) is eccentrically placed, the first nail cap (801) can slide into the first locking hole (201) along the power compression hole (202) of the power compression locking hole (2), so that the plate nail is extruded and moved, and the fracture end is pressurized.
8. The three-dimensional bone plate and nail combined fixing device is characterized in that the pressing block (6) is provided with a cable hook (607), and a cable (12) and a cable hoop (11) are arranged in the cable hook (607); the cable (12) is sleeved into the cable hoop (11) and clamped into the cable hook (607), the cable lock nail hole (604) is provided with internal threads and matched with cable lock nail threads (1002) of the cable lock nail (10), and the second nail cap (1001) extrudes the cable hoop (11) to enable the cable, the bone fracture plate (1) and the pressing block (6) to form a cerclage fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682950.2U CN216876547U (en) | 2021-04-05 | 2021-04-05 | Three-dimensional bone plate nail combined fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682950.2U CN216876547U (en) | 2021-04-05 | 2021-04-05 | Three-dimensional bone plate nail combined fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216876547U true CN216876547U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120682950.2U Active CN216876547U (en) | 2021-04-05 | 2021-04-05 | Three-dimensional bone plate nail combined fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216876547U (en) |
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2021
- 2021-04-05 CN CN202120682950.2U patent/CN216876547U/en active Active
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