CN211633538U - Distal accurate locking device of femoral intramedullary nail - Google Patents
Distal accurate locking device of femoral intramedullary nail Download PDFInfo
- Publication number
- CN211633538U CN211633538U CN202020098018.0U CN202020098018U CN211633538U CN 211633538 U CN211633538 U CN 211633538U CN 202020098018 U CN202020098018 U CN 202020098018U CN 211633538 U CN211633538 U CN 211633538U
- Authority
- CN
- China
- Prior art keywords
- locking
- distal
- intramedullary nail
- arm
- locking rod
- 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
Links
- 210000001694 thigh bone Anatomy 0.000 claims abstract description 6
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Abstract
The utility model provides an accurate locking device of thighbone intramedullary nail distal end relates to orthopedics medical instrument technical field, it includes the near-end sight, the one end of near-end sight can be dismantled and be connected with the far-end arm of aiming, the other end integrated into one piece of near-end sight has C type arm, can dismantle on the C type arm and be fixed with the intramedullary nail, the distal end of far-end arm of aiming passes through the support arm and supports the locking disk in intramedullary nail distal end top, be provided with the locking lever hole of three grafting locking lever on the locking disk side by side, the locking lever can be dismantled through the mount card and be fixed in on the locking disk, the distal end of far-end arm of aiming is. The problem of among the prior art thighbone interlocking intramedullary nail be difficult to guarantee distal end interlocking nail locking accuracy is solved.
Description
Technical Field
The utility model relates to the technical field of orthopedic medical equipment, in particular to an accurate locking device for the distal end of a femoral intramedullary nail.
Background
The femoral shaft fracture is treated by internal fixation of the femoral interlocking intramedullary nail, is a universal method in China and China, has firm fixation, simple operation and good effect, and is acknowledged. The femur interlocking intramedullary nail usually includes an intramedullary nail of driving into the medullary cavity along the length direction of the femoral shaft, then the interlocking nail is driven into at the near-end and the distal end of the intramedullary nail, before the distal end interlocking nail is driven, a locking rod needs to be used to pass through the distal end aiming arm and to be supported on the platform at the distal end of the intramedullary nail, so as to ensure the accuracy of locking the distal end interlocking nail, but in actual operation, the locking rod is not necessarily supported on the platform, sometimes can be inclined inwards, sometimes can be inclined outwards, cause the interlocking nail to be locked inaccurately, need carry out multiple times of adjustment, the operation efficiency is reduced, the pain of a patient is increased.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides an accurate locking device of thighbone intramedullary nail distal end has solved among the prior art thighbone interlocking intramedullary nail and has been difficult to the problem of guaranteeing distal end interlocking nail locking accuracy.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the utility model provides an accurate locking device of thighbone intramedullary nail distal end, it includes the near-end sight, the one end of near-end sight can be dismantled and be connected with the far-end arm of aiming, the other end integrated into one piece of near-end sight has C type arm, can dismantle on the C type arm and be fixed with the intramedullary nail, the distal end of far-end arm of aiming passes through the support arm and supports the locking disk in intramedullary nail distal end top, be provided with the locking lever hole of three grafting locking lever on the locking disk side by side, the locking lever passes through the mount card and can dismantle to be fixed in on the locking disk, the distal end of far-end arm.
Furthermore, the locking rod hole comprises a middle locking rod hole arranged side by side, and an outer locking rod hole and an inner locking rod hole distributed on two sides of the middle locking rod hole, and the middle locking rod hole, the outer locking rod hole and the inner locking rod hole are all round holes.
Further, the side-by-side orientation of the three locking bar apertures is parallel to the axial direction of the interlocking nail sight.
Furthermore, the fixing frame clamp comprises an upper transverse plate, a middle transverse plate and a lower transverse plate which are connected into a whole through a vertical plate, and clamping holes with one open ends are formed in the upper transverse plate, the middle transverse plate and the lower transverse plate.
The clamping hole on the upper transverse plate is clamped in the fixed clamping groove on the locking rod and is tightly clamped; the diameters of the clamping holes in the middle transverse plate and the lower transverse plate are larger than those of the clamping holes in the upper transverse plate, the clamping holes in the upper transverse plate and the lower transverse plate are clamped on the locking sleeves at the upper end and the lower end of the locking disc, and the clamping holes can axially slide along the locking sleeves. The bottom surface of the middle transverse plate is positioned on the upper end surface of the locking disc, and the top surface of the lower transverse plate is tightly attached to the lower end surface of the locking disc, so that the locking rod and the locking sleeve are stabilized through the connecting action of the fixing frame clamp, and the accuracy of interlocking nail feeding is improved.
Further, the distal aiming arm is disposed parallel to the distal axis of the intramedullary nail.
Further, the support arm is integrally formed between the distal aiming arm and the locking disk and extends obliquely upward from the top surface of the distal aiming arm to the side surface of the locking disk, thereby reducing installation errors.
Further, the interlocking nail sight extends parallel from the distal aiming arm into the distal locking hole of the intramedullary nail.
Furthermore, a locking sleeve is sleeved outside the locking rod and is inserted into the locking rod hole, and the locking rod and the locking sleeve are fixed to the locking disc through a fixing frame clamp.
The utility model has the advantages that: because the intramedullary nail is driven into the medullary cavity and then the distal end interlocking nail is driven by the distal end aiming arm, if the locking rod can not be abutted to the platform on the intramedullary nail, the intramedullary nail and the distal end aiming arm can not be adjusted, the locking device in the scheme is provided with the locking disk on the distal end aiming arm to increase and arrange the outer side locking rod hole and the inner side locking rod hole, and when the locking rod falls into the outer side of the platform, the locking rod is inserted from the inner side locking rod hole again to be abutted to the platform; when the discovery locking lever falls into the platform inboard, insert the locking lever from outside locking lever hole again just can the butt to the platform on, and then guaranteed the accuracy of beating into the interlocking nail through the interlocking nail sight, improved the convenience of operation, also improved the efficiency of operation.
Drawings
Fig. 1 is a schematic structural diagram of a distal precise locking device of a femoral intramedullary nail.
Fig. 2 is a schematic structural diagram of the distal precise locking device for the intramedullary nail with the fixing frame clamp removed.
Wherein, 1, a near-end sighting device; 11. a C-shaped arm; 2. intramedullary nails; 21. a platform; 3. a distal aiming arm; 4. a support arm; 5. a locking disk; 51. a locking bar aperture; 511. a middle locking bar hole; 512. an outboard locking bar aperture; 513. an inboard locking bar aperture; 6. a locking lever; 7. an interlocking nail sight; 8. a fixed frame card; 81. an upper transverse plate; 82. a middle horizontal plate; 83. a lower transverse plate; 84. a vertical plate; 85. a clamping hole; 9. the sleeve is locked.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in fig. 1 and 2, the distal precise locking device for the femoral intramedullary nail comprises a proximal aiming device 1, wherein one end of the proximal aiming device 1 is detachably connected with a distal aiming arm 3 through a locking screw, the other end of the proximal aiming device 1 is integrally formed with a C-shaped arm 11, and an intramedullary nail 2 is detachably fixed on the C-shaped arm 11. The distal aiming arm 3 is arranged parallel to the distal axis of the intramedullary nail 2.
The distal end of the distal aiming arm 3 supports a locking disc 5 over the distal end of the intramedullary nail by means of a support arm 4, which support arm 4 is integrally formed between the distal aiming arm 3 and the locking disc 5 and extends obliquely upwards from the top surface of the distal aiming arm 3 onto the side of the locking disc 5.
The locking disk 5 is provided with three locking rod holes 51 inserted with the locking rods 6 side by side, and the side by side direction of the three locking rod holes 51 is parallel to the axial direction of the interlocking nail sight 7. The locking rod hole 51 includes a middle locking rod hole 511, an outer locking rod hole 512 and an inner locking rod hole 513, which are disposed side by side, and the middle locking rod hole 511, the outer locking rod hole 512 and the inner locking rod hole 513 are all round holes. The distance between the outboard locking bar hole 512 and the center locking bar hole 511 is determined from the statistical data of the clinically off-platform distance of the locking bar, and the distance between the inboard locking bar hole 513 and the center locking bar hole 511 is determined from the statistical data of the clinically on-platform distance of the locking bar.
The locking rod 6 is inserted in the middle locking rod hole 511, the locking sleeve 9 is sleeved outside the locking rod 6, the locking sleeve 9 is inserted in the locking rod hole 51, and the locking rod 6 and the locking sleeve 9 are both fixed on the locking disk 5 through the fixing frame clamp 8. The fixing frame clamp 8 comprises an upper transverse plate 81, a middle transverse plate 82 and a lower transverse plate 83 which are connected into a whole through a vertical plate 84, clamping holes 85 with one open ends are formed in the upper transverse plate 81, the middle transverse plate 82 and the lower transverse plate 83, and the clamping holes 85 are strip-shaped holes with one open ends. The fixing frame clamp 8 is clamped along the long axis direction of the intramedullary nail 2.
The locking rod hole 51 is a full circle hole, which can improve the guiding effect of the locking sleeve 9 inserted therein, and the locking sleeve 9 is used for guiding the locking rod 6, thereby improving the accuracy with which the locking rod 6 can abut on the platform 21 of the intramedullary nail 2.
The far end of distal end aiming arm 3 is provided with interlocking nail sight 7, and interlocking nail sight 7 is parallel to extend to in the distal end locking hole of intramedullary nail 2 from on distal end aiming arm 3, squeezes into the interlocking nail in the distal end locking hole of intramedullary nail 2 through interlocking nail sight 7.
The locking device in the scheme is only suitable for the operation process of the right femoral intramedullary nail, and only the mirror symmetry locking device needs to be manufactured if the locking device is required to be applied to the operation process of the left femoral intramedullary nail.
Claims (8)
1. The utility model provides an accurate locking device in thighbone intramedullary nail distal end, a serial communication port, including near-end sight (1), the one end of near-end sight (1) can be dismantled and be connected with far-end aiming arm (3), the other end integrated into one piece of near-end sight (1) has C type arm (11), can dismantle on C type arm (11) and be fixed with intramedullary nail (2), the distal end of far-end aiming arm (3) passes through support arm (4) and supports locking plate (5) in intramedullary nail distal end top, be provided with locking rod hole (51) of three grafting locking lever (6) on locking plate (5) side by side, locking lever (6) can be dismantled through mount card (8) and be fixed in on locking plate (5), the distal end of far-end aiming arm (3) is provided with interlocking nail sight (7).
2. The distal precise locking device of the femoral intramedullary nail according to claim 1, wherein the locking rod holes (51) comprise a middle locking rod hole (511) arranged side by side and an outer locking rod hole (512) and an inner locking rod hole (513) distributed at two sides of the middle locking rod hole (511), and the middle locking rod hole (511), the outer locking rod hole (512) and the inner locking rod hole (513) are round holes.
3. The distal precise locking device of femoral intramedullary nail according to claim 2, characterized in that the side-by-side direction of the three locking rod holes (51) is parallel to the axial direction of the interlocking nail sight (7).
4. The distal precise locking device of the femoral intramedullary nail according to claim 1, wherein the fixing frame clamp (8) comprises an upper transverse plate (81), a middle transverse plate (82) and a lower transverse plate (83) which are connected into a whole through a vertical plate (84), and clamping holes (85) with one open end are arranged on the upper transverse plate (81), the middle transverse plate (82) and the lower transverse plate (83).
5. The distal precision locking device of femoral intramedullary nail according to claim 1, characterized in that the distal aiming arm (3) is arranged parallel to the intramedullary nail distal axis.
6. The distal precision locking device of femoral intramedullary nail according to claim 1, characterized in that the support arm (4) is integrated between the distal aiming arm (3) and the locking disc (5) and extends obliquely from the top surface of the distal aiming arm (3) up to the side of the locking disc (5).
7. The distal precision locking device of femoral intramedullary nail according to claim 1 characterized in that the interlocking nail sight (7) extends from the distal aiming arm (3) parallel to the distal locking hole of the intramedullary nail (2).
8. The distal precise locking device of a femoral intramedullary nail according to claim 1, characterized in that a locking sleeve (9) is sleeved outside the locking rod (6), the locking sleeve (9) is inserted into the locking rod hole (51), and the locking rod (6) and the locking sleeve (9) are fixed to the locking disc (5) through the fixing frame clip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020098018.0U CN211633538U (en) | 2020-01-16 | 2020-01-16 | Distal accurate locking device of femoral intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020098018.0U CN211633538U (en) | 2020-01-16 | 2020-01-16 | Distal accurate locking device of femoral intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211633538U true CN211633538U (en) | 2020-10-09 |
Family
ID=72706322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020098018.0U Expired - Fee Related CN211633538U (en) | 2020-01-16 | 2020-01-16 | Distal accurate locking device of femoral intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211633538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842505A (en) * | 2021-01-29 | 2021-05-28 | 西南医科大学附属中医医院 | Percutaneous minimally invasive hollow screw internal fixation guiding positioner for femoral neck and intertrochanteric fracture |
-
2020
- 2020-01-16 CN CN202020098018.0U patent/CN211633538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112842505A (en) * | 2021-01-29 | 2021-05-28 | 西南医科大学附属中医医院 | Percutaneous minimally invasive hollow screw internal fixation guiding positioner for femoral neck and intertrochanteric fracture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2135565B1 (en) | Amz tibial tuberosity transfer system | |
| CN211633538U (en) | Distal accurate locking device of femoral intramedullary nail | |
| EP2427131A1 (en) | Nail locking systems | |
| US20230132273A1 (en) | Alignment devices for use in correction of bone deformities | |
| CN211633539U (en) | Distal accurate locking device for tibial intramedullary nail | |
| CN205885511U (en) | Intramedullary nail and distal end pinning pointing system thereof | |
| CN213665661U (en) | Distal locking device for femoral intramedullary nail | |
| CN209315983U (en) | A kind of posterior cruciate ligament tibia target device | |
| CN213665660U (en) | Distal locking device for tibial intramedullary nail | |
| CN201389077Y (en) | Dens guide pin sighting device | |
| CN204765800U (en) | Supersound positioner in intramedullary nail ligamentopexis | |
| CN210494211U (en) | Ankle joint fuses director | |
| CN215349374U (en) | Patella superior approach tibia intramedullary nail bracket | |
| CN211066969U (en) | Pedicle screw | |
| CN217244744U (en) | External positioning device for main nail of femoral head intramedullary nail | |
| CN101530344B (en) | Odontoid process guidepin aiming device | |
| CN219207261U (en) | Binary channels backbone is put nail baffle | |
| CN111658066A (en) | 3D prints assembled, modularization backbone and cuts bone conduction board device | |
| CN219331873U (en) | Aiming bracket of intramedullary nail for treating femur fracture | |
| CN219374890U (en) | Distal aiming bracket for femoral intramedullary nail | |
| CN217447717U (en) | Endoscope fixed bolster | |
| US20040073229A1 (en) | Thoracic spine posterior transpedicular screw finder | |
| CN216167792U (en) | Novel calcaneus supporting and pressurizing hollow screw | |
| CN217723676U (en) | Percutaneous pedicle screw placing positioning guide plate | |
| US11701129B2 (en) | Osteotomy system and method of use |
Legal Events
| 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: 20201009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |