CN215228280U - Early-stage strong fixed elastic metal interlocking intramedullary nail - Google Patents
Early-stage strong fixed elastic metal interlocking intramedullary nail Download PDFInfo
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- CN215228280U CN215228280U CN202120973876.XU CN202120973876U CN215228280U CN 215228280 U CN215228280 U CN 215228280U CN 202120973876 U CN202120973876 U CN 202120973876U CN 215228280 U CN215228280 U CN 215228280U
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- intramedullary nail
- interlocking
- screw hole
- rod
- elastic metal
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Abstract
The utility model discloses an early firm fixed elastic metal interlocking intramedullary nail, which belongs to the technical field of interlocking intramedullary nails. An early-stage strong fixed elastic metal interlocking intramedullary nail comprises a first intramedullary nail rod, wherein a slide way is arranged inside the first intramedullary nail rod, a guide block is connected inside the slide way in a sliding manner, a first screw hole is arranged inside the guide block, a first interlocking nail is connected with the inner thread of the first screw hole in a threaded manner, and a pressure reduction plane is fixedly connected to the bottom of the first intramedullary nail rod; the utility model discloses, first intramedullary nail can keep good stability in the inside of first intramedullary nail pole, prevents that the phenomenon of displacement from appearing in first intramedullary nail, and later medical personnel squeeze into patient's skeleton with first intramedullary nail inside and carry out the marrow locking, and after first intramedullary nail squeezed into patient's skeleton inside, decompression spring will receive the compression, and then makes and keep elasticity between first intramedullary nail and patient's the skeleton.
Description
Technical Field
The utility model relates to the technical field of interlocking intramedullary nails, in particular to an elastic metal interlocking intramedullary nail with early strong fixation.
Background
The intramedullary nail is an orthopedic internal fixation instrument used in medical instruments, the surface of the intramedullary nail rod is provided with a decompression plane, the structure of the intramedullary nail is provided with an intramedullary nail rod, the proximal end of the intramedullary nail rod is provided with a proximal locking screw hole, and the surface of the intramedullary nail rod is provided with a decompression plane. More than one strip-shaped decompression plane is arranged on the surface of the intramedullary nail rod, and the decompression plane can extend from the proximal end of the intramedullary nail rod to the distal end of the intramedullary nail rod. The proximal end of the intramedullary nail rod is provided with a locking screw rod positioning screw hole and a connecting sleeve positioning groove.
The existing intramedullary nail is generally poor in positioning effect when in use, and meanwhile, due to the fact that elasticity between bones and the intramedullary nail is lack, the intramedullary nail is easy to loosen or fall off in the bones, and therefore improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems of poor positioning effect and easy loosening or falling of the locking intramedullary nail in the inner part of the skeleton in the prior art, and providing the early strong fixed elastic metal interlocking intramedullary nail.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an early firm fixed elastic metal area lock intramedullary nail, includes first intramedullary nail pole, the slide has been seted up to the inside of first intramedullary nail pole, the inside sliding connection of slide has the guide block, first screw hole has been seted up to the inside of guide block, the inside threaded connection of first screw hole has first intramedullary nail, the bottom fixedly connected with decompression plane of first intramedullary nail pole, decompression planar bottom sliding connection has decompression spring, first intramedullary nail runs through to decompression spring's bottom, the guide way has all been seted up to the both sides of first intramedullary nail pole surface, the equal fixedly connected with locating lever in both sides of guide block, the locating lever extends to the outside of guide way, the surface threaded connection of locating lever has set nut.
Preferably, a connecting portion is fixedly connected to the top end of the first intramedullary nail, and the connecting portion is in a groove shape.
Preferably, the number of the first intramedullary nail is four, the number of the decompression springs is four, and the four first intramedullary nails extend to the bottoms of the four decompression springs respectively.
Preferably, a bearing groove is formed in one end of the first intramedullary nail rod, and a bearing is fixedly mounted inside the bearing groove.
Preferably, the inside of the bearing is rotatably connected with a second intramedullary nail rod, and a second screw hole and a third screw hole are respectively formed in two sides of the second intramedullary nail rod.
Preferably, the inner thread of the second screw hole is connected with a second intramedullary nail, and the inner thread of the third screw hole is connected with a third intramedullary nail.
Compared with the prior art, the utility model provides an early firm fixed elastic metal interlocking intramedullary nail possesses following beneficial effect:
1. the utility model can lead medical personnel to connect the first intramedullary nail into the first screw hole by the screw thread when locking the marrow of the patient through the matching arrangement between the first intramedullary nail rod, the slide way, the guide block, the first screw hole, the first intramedullary nail, the decompression plane, the decompression spring, the guide groove, the positioning rod and the positioning nut, lead the decompression plane to be contacted with the skeleton of the patient, simultaneously lead the guide block to be connected in the slide way in a sliding way, lead the first intramedullary nail to be capable of sliding in the first intramedullary nail rod, lead the medical personnel to move the first intramedullary nail to the corresponding skeleton part of the patient according to the position of the marrow of the patient, then twist the positioning nut, lead the positioning nut to be displaced on the outer surface of the positioning rod, lead the positioning nut to be contacted with the first intramedullary nail rod, and further lead the guide block in the slide way to be fixed, and then make first intramedullary nail can keep good stability in the inside of first intramedullary nail pole, prevent that the phenomenon of displacement from appearing in first intramedullary nail, later medical personnel squeeze into patient's skeleton with first intramedullary nail inside and carry out the marrow locking, squeeze into patient's skeleton inside after as first intramedullary nail, decompression spring will receive the compression, and then make and keep elasticity between first intramedullary nail and patient's the skeleton, and then prevent that first intramedullary nail from appearing becoming flexible in patient's inside.
2. The utility model discloses, through the bearing, the second intramedullary nail pole, the second screw hole, the third screw hole, cooperation setting between second lock intramedullary nail and the third lock intramedullary nail, can make this device when using, second screw hole and third screw hole are transversely seting up and vertically seting up respectively in the inside of second intramedullary nail pole, the second intramedullary nail pole passes through the bearing and rotates the inside of connecting at first intramedullary nail pole simultaneously, thereby make second lock intramedullary nail and third lock intramedullary nail can rotate in the inside of second intramedullary nail pole, thereby can change second lock intramedullary nail and third lock intramedullary nail in the inside position of second intramedullary nail pole, when doing the lock marrow for medical personnel, provide good flexibility.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic view of the interior of the first intramedullary nail shaft of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the bearing structure of the present invention;
fig. 5 is a schematic view of a cross-sectional structure of the second screw hole and the third screw hole of the present invention.
In the figure: 1. a first intramedullary nail shaft; 2. a slideway; 3. a guide block; 4. a first screw hole; 5. a first intramedullary nail; 6. a pressure reduction plane; 7. a relief spring; 8. a guide groove; 9. positioning a rod; 10. positioning a nut; 11. a connecting portion; 12. a bearing; 13. a second intramedullary nail rod; 14. a second screw hole; 15. a third screw hole; 16. a second intramedullary locking nail; 17. and a third interlocking intramedullary nail.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-5, an early strong fixed elastic metal interlocking intramedullary nail comprises a first intramedullary nail rod 1, a slide way 2 is arranged inside the first intramedullary nail rod 1, a guide block 3 is slidably connected inside the slide way 2, a first screw hole 4 is arranged inside the guide block 3, a first intramedullary nail 5 is connected inside the first screw hole 4 in a threaded manner, a decompression plane 6 is fixedly connected to the bottom of the first intramedullary nail rod 1, decompression springs 7 are slidably connected to the bottom of the decompression plane 6, the number of the first intramedullary nails 5 is four, the number of the decompression springs 7 is four, the four first intramedullary nails 5 respectively extend to the bottoms of the four decompression springs 7, the first intramedullary nails 5 penetrate through the bottoms of the decompression springs 7, guide grooves 8 are arranged on two sides of the outer surface of the first intramedullary nail rod 1, positioning rods 9 are fixedly connected to two sides of the guide block 3, the positioning rod 9 extends to the outside of the guide groove 8, the outer surface of the positioning rod 9 is in threaded connection with a positioning nut 10, when a medical worker locks the marrow of a patient, the first intramedullary nail 5 is in threaded connection with the inside of the first screw hole 4, the decompression plane 6 is in contact with the bone of the patient, meanwhile, the guide block 3 is in sliding connection with the inside of the slide way 2, the first intramedullary nail 5 can slide in the first intramedullary nail rod 1, the medical worker moves the first intramedullary nail 5 to the bone part corresponding to the patient according to the position of the patient for locking the marrow, then twists the positioning nut 10, the positioning nut 10 displaces on the outer surface of the positioning rod 9, the positioning nut 10 is in contact with the first intramedullary nail rod 1, further, the guide block 3 in the slide way 2 can be fixed, further, the first intramedullary nail can keep good stability in the first intramedullary nail rod 1, the phenomenon of displacement of the first intramedullary nail 5 is prevented, then medical staff squeezes the first intramedullary nail 5 into the bone of a patient for locking the marrow, after the first intramedullary nail 5 is squeezed into the bone of the patient, the decompression spring 7 is compressed, so that the elasticity between the first intramedullary nail 5 and the bone of the patient is kept, further the first intramedullary nail 5 is prevented from loosening in the patient, the top end of the first intramedullary nail 5 is fixedly connected with the connecting part 11, the connecting part 11 is in a groove shape, a working staff clamps the operation appliance used during locking the marrow to the inside of the connecting part 11, then rotates the operation appliance, so that the first intramedullary nail 5 can be implanted into the bone of the patient, one end of the first intramedullary nail rod 1 is provided with a bearing groove, a bearing 12 is fixedly arranged in the bearing groove, and the inside of the bearing 12 is rotatably connected with a second intramedullary nail rod 13, the two sides of the second intramedullary nail rod 13 are respectively provided with a second screw hole 14 and a third screw hole 15, the internal thread of the second screw hole 14 is connected with a second interlocking intramedullary nail 16, the internal thread of the third screw hole 15 is connected with a third interlocking intramedullary nail 17, the second screw hole 14 and the third screw hole 15 are respectively transversely and longitudinally arranged in the second intramedullary nail rod 13, and the second intramedullary nail rod 13 is rotatably connected in the first intramedullary nail rod 1 through a bearing 12, so that the second interlocking intramedullary nail 16 and the third interlocking intramedullary nail 17 can rotate in the second intramedullary nail rod 13, the directions of the second interlocking intramedullary nail 16 and the third interlocking nail 17 in the second intramedullary nail rod 13 can be changed, and good flexibility is provided for medical staff when locking the intramedullary nails.
In the utility model, when the medical staff locks the marrow for the patient, the first intramedullary nail 5 is connected to the inside of the first screw hole 4 by screw thread, the decompression plane 6 is contacted with the bone of the patient, meanwhile, the guide block 3 is connected to the inside of the slideway 2 by sliding, the first intramedullary nail 5 can slide in the inside of the first intramedullary nail rod 1, the medical staff moves the first intramedullary nail 5 to the bone part corresponding to the patient according to the position of the patient marrow locking, then twists the positioning nut 10, the positioning nut 10 displaces on the outer surface of the positioning rod 9, the positioning nut 10 is contacted with the first intramedullary nail rod 1, and further the guide block 3 in the slideway 2 can be fixed, further the first intramedullary nail can keep good stability in the first intramedullary nail rod 1, and the displacement phenomenon of the first intramedullary nail 5 can be prevented, then the medical staff squeezes the first intramedullary nail 5 into the bone of the patient for locking the marrow, after the first intramedullary nail 5 is squeezed into the bone of the patient, the decompression spring 7 is compressed, and then the elasticity is kept between the first intramedullary nail 5 and the bone of the patient, and the first intramedullary nail 5 is prevented from loosening in the patient.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an early firm fixed elastic metal interlocking intramedullary nail, includes first intramedullary nail pole (1), its characterized in that, slide (2) have been seted up to the inside of first intramedullary nail pole (1), the inside sliding connection of slide (2) has guide block (3), first screw hole (4) have been seted up to the inside of guide block (3), the inside threaded connection of first screw hole (4) has first lock intramedullary nail (5), the bottom fixedly connected with decompression plane (6) of first intramedullary nail pole (1), the bottom sliding connection of decompression plane (6) has decompression spring (7), first lock intramedullary nail (5) run through to the bottom of decompression spring (7), guide way (8) have all been seted up to the both sides of first intramedullary nail pole (1) surface, the both sides of guide block (3) all fixedly connected with locating lever (9), the positioning rod (9) extends to the outside of the guide groove (8), and the outer surface of the positioning rod (9) is in threaded connection with a positioning nut (10).
2. An early strong fixed elastic metal interlocking intramedullary nail according to claim 1, characterized in that the top of the first interlocking nail (5) is fixedly connected with a connecting part (11), and the connecting part (11) is groove-shaped.
3. An early strong fixed elastic metal interlocking intramedullary nail according to claim 1, characterized in that said first interlocking nails (5) are four in number, said relief springs (7) are four in number, four of said first interlocking nails (5) extending to the bottom of four of said relief springs (7), respectively.
4. An early strong fixed elastic metal interlocking intramedullary nail according to claim 1, characterized in that one end of the first intramedullary nail rod (1) is provided with a bearing groove, and a bearing (12) is fixedly arranged inside the bearing groove.
5. The early strong fixed elastic metal interlocking intramedullary nail according to claim 4, wherein a second intramedullary nail rod (13) is rotatably connected to the inside of the bearing (12), and a second screw hole (14) and a third screw hole (15) are respectively opened at both sides of the second intramedullary nail rod (13).
6. An early strong fixed elastic metal interlocking intramedullary nail according to claim 5, characterized in that the internal thread of said second screw hole (14) is connected with a second interlocking intramedullary nail (16) and the internal thread of said third screw hole (15) is connected with a third interlocking intramedullary nail (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120973876.XU CN215228280U (en) | 2021-05-08 | 2021-05-08 | Early-stage strong fixed elastic metal interlocking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120973876.XU CN215228280U (en) | 2021-05-08 | 2021-05-08 | Early-stage strong fixed elastic metal interlocking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215228280U true CN215228280U (en) | 2021-12-21 |
Family
ID=79454442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120973876.XU Expired - Fee Related CN215228280U (en) | 2021-05-08 | 2021-05-08 | Early-stage strong fixed elastic metal interlocking intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215228280U (en) |
-
2021
- 2021-05-08 CN CN202120973876.XU patent/CN215228280U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |