CN214342551U - Strong-stability intramedullary nail - Google Patents
Strong-stability intramedullary nail Download PDFInfo
- Publication number
- CN214342551U CN214342551U CN202023193500.1U CN202023193500U CN214342551U CN 214342551 U CN214342551 U CN 214342551U CN 202023193500 U CN202023193500 U CN 202023193500U CN 214342551 U CN214342551 U CN 214342551U
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- butt joint
- fixed
- nail
- joint portion
- fixing
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Abstract
The utility model relates to the field of medical equipment, especially, relate to a strong interlocking nail of stability, including nail pole main part, nail pole main part comprises last nail pole and lower nail pole, be provided with the screw hole that a plurality of set screws used down on the nail pole, nail pole top is fixed with first butt joint portion down, first butt joint portion periphery side is provided with the screw thread, still be fixed with the nut with first butt joint portion threaded connection on the first butt joint portion, go up nail pole bottom and be fixed with the second butt joint portion that uses with aforementioned first butt joint portion cooperation, second butt joint portion top is provided with the fixed slot, all be equipped with the through-hole that runs through the nail pole on the last nail pole of fixed slot both sides, be provided with in the fixed slot and can dismantle the connection fixed column with last nail pole, correspond the position with aforementioned through-hole on the fixed column and be provided with the screw rod hole that runs through the fixed column. The corresponding fixing column is selected to ensure that the intramedullary nail meets the actual fixation requirement of the medullary cavity of the patient, and the stability of the intramedullary nail is strong.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a strong lock intramedullary nail of stability.
Background
The master-slave interlocking intramedullary nail is used for treating open or closed femoral neck fracture in orthopedic surgery; the development of the primary and secondary interlocking intramedullary nail is an important medical instrument for fixing the internal fixation of the multi-section fracture of the femur, and the primary and secondary interlocking intramedullary nail has similar functions with a gamma nail and is suitable for the fracture of the neck of the femur.
Because the uncertainty of femoral fracture, the surgeon probably has certain deviation when selecting the product, needs to be stocked in the clinical process fully, avoids product singleness in the clinical use to and the integral type is not convenient for select the combination to use to different angle of buckling. And because patient individuation difference, the radian of intramedullary nail pole can not fine match every patient's pulp cavity, because not matching intramedullary nail pole radian can produce deformation in the implantation process, lead to the intramedullary nail screw rod can't match with external body.
The utility model discloses it is not enough to solve prior art and research and propose.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide an intramedullary nail with strong effective stability.
The utility model discloses can realize through following technical scheme:
the utility model discloses an intramedullary nail with strong stability, which comprises a nail rod main body, wherein the nail rod main body consists of an upper nail rod and a lower nail rod, the lower nail rod is provided with a plurality of screw holes for fixing screws, the top of the lower nail rod is fixed with a first butt joint part, a thread is arranged on the outer periphery of the first butt joint part, a nut which is in threaded connection with the first butt joint part is further fixed on the first butt joint part, a second butt joint part matched with the first butt joint part for use is fixed at the bottom of the upper nail rod, the outer periphery of the second butt joint part is also provided with threads, the top of the second butt joint part is provided with a fixing groove, the upper nail rods on the two sides of the fixing groove are both provided with through holes penetrating through the upper nail rods, be provided with in the fixed slot and can dismantle with last nail pole and be connected the fixed column, correspond the position with aforementioned through-hole on the fixed column and be provided with the screw rod hole that runs through the fixed column. Select last nail pole and lower nail pole that accords with patient's in-service use size according to patient's physiological characteristics, when going up nail pole and lower nail pole and fixing each other, through rotating the nut after butt joint each other through first butt joint portion and second butt joint portion, the nut is fixed when first butt joint portion and second butt joint portion butt joint position, through selecting last nail pole and the lower nail pole that corresponds the size in order to satisfy different patient's user demand, and the screw rod hole inclination that sets up on the different fixed columns is inconsistent, can select the fixed column that corresponds inclination screw rod hole and use with last nail pole cooperation according to patient's actual demand, fixing screw passes through-hole and fixed column screw rod hole back and is fixed totally to the thighbone, select the fixed column to make the lock intramedullary nail satisfy the fixed actual demand in patient's pulp cavity according to the demand, it is strong to lock intramedullary nail stability.
Preferably, a square fixing shaft is further fixed at the bottom of the second butt joint part, and a fixing square hole matched with the fixing shaft for use is formed in the position, corresponding to the fixing shaft, of the second butt joint part. The fixed shaft is inserted into the fixed square hole, so that the upper nail rod and the lower nail rod can be prevented from rotating and dislocating with each other in the use process of the intramedullary nail.
Preferably, an external thread is arranged on the outer peripheral side of the fixing column, and the fixing column is fixed in the fixing groove after being in threaded connection with the fixing groove through the external thread.
Compared with the prior art, the utility model has the advantages that:
1. can select the fixed column that corresponds inclination screw hole to use with last nail pole cooperation according to patient's actual demand, fixed screw passes through on through-hole and the fixed column screw hole after fixed completely to the thighbone, selects the fixed column to make the lock intramedullary nail satisfy the fixed actual demand in patient pulp cavity according to the demand, and lock intramedullary nail stability is strong.
2. The use requirements of different patients can be met by selecting the upper nail rod and the lower nail rod with corresponding sizes.
[ description of the drawings ]
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is another angle structure diagram of the present invention;
FIG. 3 is an exploded view of the present invention;
in the figure: 1. a nail rod is arranged; 2. a nail rod is arranged; 3. a first mating portion; 4. a second docking portion; 5. a fixed shaft; 6. a nut; 7. screw holes; 8. a set screw; 9. fixing grooves; 10. a through hole; 11. fixing a column; 12. an external thread; 13. a screw hole; 14. fixing the screw rod;
[ detailed description ] embodiments
The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings:
as shown in fig. 1 and 3, the utility model discloses a strong interlocking nail of stability, including the nail pole main part, the nail pole main part comprises last nail pole 2 and lower nail pole 1, be provided with the screw hole 7 that a plurality of set screw 8 used on the lower nail pole 1, nail pole 1 top is fixed with first butt joint portion 3 down, first butt joint portion 3 periphery side is provided with the screw thread, still be fixed with the nut 6 with 3 threaded connection of first butt joint portion on the first butt joint portion 3, 2 bottoms of last nail pole are fixed with the second butt joint portion 4 that uses with 3 cooperations of first butt joint portion, 4 periphery sides of second butt joint portion also are provided with the screw thread, 4 tops of second butt joint portion are provided with fixed slot 9, all be equipped with the through-hole 10 that runs through last nail pole 2 on the last nail pole 2 of fixed slot 9 both sides, be provided with in the fixed slot 9 and can dismantle with last nail pole 2 and be connected fixed column 11, be provided with the screw hole 13 that runs through fixed column 11 with through-hole 10 corresponding position on the fixed column 11. The upper nail rod 2 and the lower nail rod 1 which are in accordance with the actual use size of the patient are selected according to the physiological characteristics of the patient, when the upper nail rod 2 and the lower nail rod 1 are mutually fixed, after the first butt joint part 3 and the second butt joint part 4 are butted with each other, by rotating the nut 6, when the nut 6 is fixed at the butting position of the first butt joint part 3 and the second butt joint part 4, by selecting the upper nail rod 2 and the lower nail rod 1 with corresponding sizes to meet the use requirements of different patients, moreover, the screw holes 13 arranged on different fixing columns 11 have different inclination angles, the fixing column 11 corresponding to the screw hole 13 with the inclination angle can be selected to be matched with the upper nail rod 2 according to the actual requirements of patients, the fixing screw 14 completely fixes the femur after penetrating through the through hole 10 and the screw hole 13 on the fixing column 11, the fixing column 11 is selected according to the requirement, so that the intramedullary nail meets the actual requirement of the fixation of the medullary cavity of the patient, and the stability of the intramedullary nail is strong.
The bottom of the second butt joint part 4 is also fixed with a square fixing shaft 5, and a fixing square hole matched with the fixing shaft 5 for use is formed in the position, corresponding to the fixing shaft 5, of the second butt joint part 4.
Wherein, be provided with external screw thread 12 on the peripheral side on fixed column 11, fixed column 11 passes through external screw thread 12 and fixes in fixed slot 9 after the fixed slot 9 threaded connection.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes, modifications, substitutions and variations can be made to the embodiments without departing from the technical principles of the present invention, and these changes, modifications, substitutions and variations should also be considered as the protection scope of the present invention.
Claims (3)
1. The utility model provides a strong lock intramedullary nail of stability, includes the nail pole main part, its characterized in that: the nail rod main body comprises an upper nail rod and a lower nail rod, a plurality of screw holes used for fixing screws are formed in the lower nail rod, a first butt joint portion is fixed to the top of the lower nail rod, threads are arranged on the periphery of the first butt joint portion, nuts in threaded connection with the first butt joint portion are further fixed to the first butt joint portion, a second butt joint portion matched with the first butt joint portion in use is fixed to the bottom of the upper nail rod, threads are also arranged on the periphery of the second butt joint portion, a fixing groove is formed in the top of the second butt joint portion, through holes penetrating through the upper nail rod are formed in the upper nail rods on the two sides of the fixing groove, a connecting fixing column detachably connected with the upper nail rod is arranged in the fixing groove, and a screw hole penetrating through the fixing column is formed in a position, corresponding to the through hole, of the fixing column.
2. The strong stability intramedullary nail of claim 1, wherein: and a square fixing shaft is further fixed at the bottom of the second butt joint part, and a fixing square hole matched with the fixing shaft for use is formed in the position, corresponding to the fixing shaft, of the second butt joint part.
3. The strong stability intramedullary nail of claim 1, wherein: and the outer peripheral side of the fixed column is provided with an external thread, and the fixed column is connected with the fixed groove through the external thread and then fixed in the fixed groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023193500.1U CN214342551U (en) | 2020-12-27 | 2020-12-27 | Strong-stability intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023193500.1U CN214342551U (en) | 2020-12-27 | 2020-12-27 | Strong-stability intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214342551U true CN214342551U (en) | 2021-10-08 |
Family
ID=77947621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023193500.1U Active CN214342551U (en) | 2020-12-27 | 2020-12-27 | Strong-stability intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214342551U (en) |
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2020
- 2020-12-27 CN CN202023193500.1U patent/CN214342551U/en active Active
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