CN108478269B - Elastic femoral intramedullary nail bending tool - Google Patents
Elastic femoral intramedullary nail bending tool Download PDFInfo
- Publication number
- CN108478269B CN108478269B CN201810500280.0A CN201810500280A CN108478269B CN 108478269 B CN108478269 B CN 108478269B CN 201810500280 A CN201810500280 A CN 201810500280A CN 108478269 B CN108478269 B CN 108478269B
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- support plate
- intramedullary nail
- plate
- adjusting screw
- screw rod
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- 238000005452 bending Methods 0.000 title claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- A61B17/72—Intramedullary pins, nails or other devices
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to an elastic femoral intramedullary nail bending tool which comprises a base, wherein a pressing block is arranged above a bending station, and a pressing groove is formed in a forming curved surface; a rotatable left support plate and a rotatable right support plate are arranged between the two mounting side plates, the left end of the left support plate is rotationally connected with the mounting side plates on the two sides through a pin shaft, a left spring is arranged below the right end of the left support plate, the right end of the right support plate is rotationally connected with the mounting side plates on the two sides through a pin shaft, a right spring is arranged below the left end of the right support plate, and baffle plates are respectively arranged in the middle parts of the two mounting side plates; the left support plate is provided with a left support wheel, and the right support plate is provided with a right support wheel; the left side of the left support plate is provided with a clamping device for fixing the proximal end of the intramedullary nail, and the intramedullary nail to be bent is placed on the clamping device, the left support wheel and the right support wheel during operation. The intramedullary nail can form an obtuse angle structure between the two supporting plates when being pressed, and the two supporting wheels can be rotatably spread so as to facilitate smooth transition molding of the intramedullary nail.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to an elastic femoral intramedullary nail bending tool.
Background
The intramedullary nail is bent to a certain radian in the manufacturing process, so that the intramedullary nail is suitable for the physiological bending radian of the corresponding bone of the human body; in the current intramedullary nail bending process, bending positions are concentrated at a certain point, the generated stress is concentrated, and the bending effect and the bending quality are relatively low.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects of the prior art and provides an elastic femoral intramedullary nail bending tool.
The technical scheme adopted for solving the technical problems is as follows: the elastic femoral intramedullary nail bending tool comprises a base, wherein a bending station is arranged in the middle of the base, a pressing block capable of moving up and down is arranged above the bending station, a forming curved surface is arranged at the lower end of the pressing block, and a pressing groove is formed in the forming curved surface;
the base is characterized in that a pair of mounting side plates are arranged on the front side and the rear side of the base, a rotatable left support plate and a rotatable right support plate are arranged between the two mounting side plates, the left end of the left support plate is rotationally connected with the mounting side plates on the two sides through a pin shaft, a left spring for driving the left support plate to rotationally reset is arranged below the right end of the left support plate, the right end of the right support plate is rotationally connected with the mounting side plates on the two sides through a pin shaft, a right spring for driving the right support plate to rotationally reset is arranged below the left end of the right support plate, and baffles for limiting the left support plate and the right support plate to rotationally reset are respectively arranged in the middle of the two mounting side plates;
a left supporting wheel capable of moving left and right is arranged on the left supporting plate, and a right supporting wheel capable of moving left and right is arranged on the right supporting plate; the left side of the left support plate is provided with a clamping device for fixing the proximal end of the intramedullary nail, and the intramedullary nail to be bent is placed on the clamping device, the left support wheel and the right support wheel during operation.
Further, a left sliding groove is formed in the left supporting plate, a left sliding seat is arranged in the left sliding groove, the left supporting wheel is installed at the upper end of the left sliding seat, a left adjusting screw rod is arranged at the lower end of the left supporting plate, a left spring is sleeved on the left adjusting screw rod, and the right end of the left adjusting screw rod is connected with the lower end of the left sliding seat; the left adjusting screw rod rotates to drive the left sliding seat to move left and right on the left supporting plate.
Further, a right sliding groove is formed in the right supporting plate, a right sliding seat is arranged in the right sliding groove, the right supporting wheel is arranged at the upper end of the right sliding seat, a right adjusting screw rod is arranged at the lower end of the right supporting plate, a right spring is sleeved on the right adjusting screw rod, and the left end of the right adjusting screw rod is connected with the lower end of the right sliding seat; the right adjusting screw rod rotates to drive the right sliding seat to move right and right on the right supporting plate.
Further, the clamping device comprises a clamping seat fixedly arranged at the left end of the left supporting plate, a left-right penetrating placing groove is formed in the upper end face of the clamping seat, and a pressing plate capable of being vertically locked is arranged at the upper end of the clamping seat;
a locating plate is arranged on the left side of the clamping seat, and a clamping protrusion for matching a clamping opening at the proximal end of the intramedullary nail is arranged on the left side of the locating plate; the locating plate is internally penetrated with an adjusting rod, the right end of the adjusting rod extends into the placing groove, an external thread matched with the internal thread at the proximal end of the intramedullary nail is arranged on the adjusting rod, and the left end of the adjusting rod is connected with the rotary table.
Furthermore, guide rods are respectively arranged on the front side and the rear side of the base, an upper die holder is arranged on each guide rod, and the pressing blocks are fixedly arranged on the lower end face of the upper die holder.
The beneficial effects of the invention are as follows: the utility model provides an elasticity formula femoral intramedullary nail frock of bending, two backup pads can rotate to can form obtuse angle structure between two backup pads when messenger's intramedullary nail is pressurized, can rotatory formula strut between two supporting wheels and be convenient for the smooth transition shaping of intramedullary nail.
The spring of backup pad lower extreme can make the briquetting when pushing down the intramedullary nail, and intramedullary nail bending process is more mild, is favorable to the intramedullary nail shaping of bending, drives left backup pad and right backup pad simultaneously when the briquetting rises and upwards rotates the reset.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a bending tool of the present invention;
FIG. 2 is a schematic view of a clamping device;
FIG. 3 is a diagram showing the connection of the adjustment lever to the turntable;
FIG. 4 is a movement mechanism of the left support wheel on the left support plate;
FIG. 5 is a movement mechanism of the right support wheel on the right support plate;
FIG. 6 is a schematic diagram of the inside of the bending tool
FIG. 7 is a schematic diagram of a compact;
wherein, 1, a base, 3, a mounting side plate, 4, a pressing block, 51, a left supporting plate, 52, a left sliding seat, 53, a left supporting wheel, 54, a left adjusting screw rod, 55, a left spring, 61, a right supporting plate, 62 and a right sliding seat, 63, right supporting wheels, 64, right adjusting screw rods, 65, right springs, 7, baffle plates, 81, clamping seats, 82, compression plates, 83, positioning plates, 831, clamping protrusions, 84, adjusting rods, 85 and turntables.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present invention by way of illustration only, and thus show only the constitution related to the present invention.
As shown in fig. 1 to 7, an elastic femoral intramedullary nail bending tool comprises a base 1, wherein a bending station is arranged in the middle of the base 1, a pressing block 4 capable of moving up and down is arranged above the bending station, a forming curved surface is arranged at the lower end of the pressing block 4, and a pressing groove is formed in the forming curved surface; the pressing groove is used for positioning the intramedullary nail when pressing downwards.
A pair of mounting side plates 3 are arranged on the front side and the rear side of the base 1, a rotatable left support plate 51 and a rotatable right support plate 61 are arranged between the two mounting side plates 3, the left end of the left support plate 51 is rotationally connected with the mounting side plates 3 on the two sides through a pin shaft, a left spring 55 for driving the left support plate 51 to rotate upwards is arranged below the right end of the left support plate 51, the right end of the right support plate 61 is rotationally connected with the mounting side plates 3 on the two sides through a pin shaft, a right spring 65 for driving the right support plate 61 to rotate upwards is arranged below the left end of the right support plate 61, and baffle plates 7 for limiting the left support plate 51 and the right support plate 61 to rotate upwards are respectively arranged in the middle of the two mounting side plates 3; the left and right springs respectively drive the left and right support plates to rotate upwards for resetting, and the baffle 7 is fixedly arranged through bolts, so that the left and right support plates are kept in a horizontal resetting state.
The left support plate 51 is provided with a left support wheel 53 which can move left and right, and the right support plate 61 is provided with a right support wheel 63 which can move left and right; the left side of the left support plate 51 is provided with a clamping device for fixing the proximal end of the intramedullary nail, and in operation, the intramedullary nail to be bent is placed on the clamping device, the left support wheel 53 and the right support wheel 63.
The supporting wheels are respectively arranged on the respective sliding seats in a rotating way, so that the intramedullary nail can be smoothly transited when being bent, and is convenient to form.
The clamping device comprises a clamping seat 81 fixedly arranged at the left end of the left supporting plate 51, a left-right penetrating placing groove is formed in the upper end face of the clamping seat 81, a pressing plate 82 capable of being vertically locked is arranged at the upper end of the clamping seat 81, and the pressing plate 82 is vertically locked through a bolt.
The left side of the clamping seat 81 is provided with a positioning plate 83, and the left side of the positioning plate 83 is provided with a clamping protrusion 831 for matching a clamping opening at the proximal end of the intramedullary nail; the locating plate 83 is internally penetrated with a regulating rod 84, the right end of the regulating rod 84 extends into the placing groove, the regulating rod 84 is provided with external threads matched with the internal threads at the proximal end of the intramedullary nail, and the left end of the regulating rod 84 is connected with a rotary table 85.
A left sliding groove is formed in the left supporting plate 51, a left sliding seat 52 is arranged in the left sliding groove, a left supporting wheel 53 is arranged at the upper end of the left sliding seat 52, a left adjusting screw rod 54 is arranged at the lower end of the left supporting plate 51, a left spring 55 is sleeved on the left adjusting screw rod 54, and the right end of the left adjusting screw rod 54 is connected with the lower end of the left sliding seat 52; the left adjusting screw 54 rotates to drive the left slider 52 to move left and right on the left support plate 51.
A right sliding groove is formed in the right supporting plate 61, a right sliding seat 62 is arranged in the right sliding groove, a right supporting wheel 63 is arranged at the upper end of the right sliding seat 62, a right adjusting screw rod 64 is arranged at the lower end of the right supporting plate 61, a right spring 65 is sleeved on the right adjusting screw rod 64, and the left end of the right adjusting screw rod 64 is connected with the lower end of the right sliding seat 62; the right adjusting screw 64 rotates to drive the right slider 62 to move right and right on the right support plate 61.
Guide rods are respectively arranged on the front side and the rear side of the base 1, an upper die holder is arranged on the two guide rods, and a pressing block 4 is fixedly arranged on the lower end face of the upper die holder.
In operation, the proximal end of the intramedullary nail is placed on the clamping seat 81, the middle part is placed on the two supporting rollers, the right end of the adjusting rod 84 is in threaded connection with the proximal end of the intramedullary nail, the intramedullary nail is driven to move left and right, and the intramedullary nail is rotated, so that the bayonet at the proximal end of the intramedullary nail is matched with the clamping protrusion 831 on the positioning plate 83, and the intramedullary nail is limited to rotate; then the pressing plate 82 is vertically locked by a bolt, and when the pressing block 4 is pressed down, a pressing groove at the lower end of the pressing block 4 is contacted with the intramedullary nail to drive the intramedullary nail to bend.
Because there are two springs about, the intramedullary nail is by briquetting 4 extrusion deformation's in-process, and two backup pads become obtuse angle structure from the flat angle, can rotatory the expansion be convenient for the smooth transition shaping of intramedullary nail between two supporting wheels to the intramedullary nail is when the pressurized, and the atress also can rely on the spring to cushion, makes the intramedullary nail bend more stably. The adjustment of the spacing between the two support wheels is used to control the curvature of the intramedullary nail.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (2)
1. The elastic femoral intramedullary nail bending tool is characterized by comprising a base, wherein a bending station is arranged in the middle of the base, a pressing block capable of moving up and down is arranged above the bending station, the lower end of the pressing block is provided with a forming curved surface, and a pressing groove is formed in the forming curved surface;
the base is characterized in that a pair of mounting side plates are arranged on the front side and the rear side of the base, a rotatable left support plate and a rotatable right support plate are arranged between the two mounting side plates, the left end of the left support plate is rotationally connected with the mounting side plates on the two sides through a pin shaft, a left spring for driving the left support plate to rotationally reset is arranged below the right end of the left support plate, the right end of the right support plate is rotationally connected with the mounting side plates on the two sides through a pin shaft, a right spring for driving the right support plate to rotationally reset is arranged below the left end of the right support plate, and baffles for limiting the left support plate and the right support plate to rotationally reset are respectively arranged in the middle of the two mounting side plates;
a left supporting wheel capable of moving left and right is arranged on the left supporting plate, and a right supporting wheel capable of moving left and right is arranged on the right supporting plate; the left side of the left supporting plate is provided with a clamping device for fixing the proximal end of the intramedullary nail, and the intramedullary nail to be bent is placed on the clamping device, the left supporting wheel and the right supporting wheel during operation;
the left support plate is provided with a left sliding groove, a left sliding seat is arranged in the left sliding groove, the left support wheel is arranged at the upper end of the left sliding seat, the lower end of the left support plate is provided with a left adjusting screw rod, the left adjusting screw rod is sleeved with a left spring, and the right end of the left adjusting screw rod is connected with the lower end of the left sliding seat; the left adjusting screw rod rotates to drive the left sliding seat to move left and right on the left supporting plate;
the right support plate is provided with a right sliding groove, a right sliding seat is arranged in the right sliding groove, the right support wheel is arranged at the upper end of the right sliding seat, the lower end of the right support plate is provided with a right adjusting screw rod, the right adjusting screw rod is sleeved with a right spring, and the left end of the right adjusting screw rod is connected with the lower end of the right sliding seat; the right adjusting screw rod rotates to drive the right sliding seat to move right and right on the right supporting plate;
the clamping device comprises a clamping seat fixedly arranged at the left end of the left supporting plate, a left-right penetrating placing groove is formed in the upper end face of the clamping seat, and a pressing plate capable of being vertically locked is arranged at the upper end of the clamping seat;
a locating plate is arranged on the left side of the clamping seat, and a clamping protrusion for matching a clamping opening at the proximal end of the intramedullary nail is arranged on the left side of the locating plate; the locating plate is internally penetrated with an adjusting rod, the right end of the adjusting rod extends into the placing groove, an external thread matched with the internal thread at the proximal end of the intramedullary nail is arranged on the adjusting rod, and the left end of the adjusting rod is connected with the rotary table.
2. The bending tool for the elastic femoral intramedullary nail according to claim 1, wherein guide rods are respectively arranged on the front side and the rear side of the base, upper die holders are arranged on the two guide rods, and the pressing blocks are fixedly arranged on the lower end faces of the upper die holders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500280.0A CN108478269B (en) | 2018-05-23 | 2018-05-23 | Elastic femoral intramedullary nail bending tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500280.0A CN108478269B (en) | 2018-05-23 | 2018-05-23 | Elastic femoral intramedullary nail bending tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108478269A CN108478269A (en) | 2018-09-04 |
| CN108478269B true CN108478269B (en) | 2024-03-22 |
Family
ID=63351137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810500280.0A Active CN108478269B (en) | 2018-05-23 | 2018-05-23 | Elastic femoral intramedullary nail bending tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108478269B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20020989U1 (en) * | 2000-11-22 | 2001-03-22 | Yao Meei Huei | Device for placing blockable intramedular nails |
| CN2516289Y (en) * | 2001-12-25 | 2002-10-16 | 黄元真 | Flanging sealing device for metal sheet |
| JP2008044053A (en) * | 2006-08-11 | 2008-02-28 | Max Co Ltd | Stapler |
| CN107052100A (en) * | 2017-06-05 | 2017-08-18 | 江苏海事职业技术学院 | Gantry rotation formula web-like Plate Bending Machine |
| CN208864458U (en) * | 2018-05-23 | 2019-05-17 | 江苏艾为康医疗器械科技有限公司 | Flexible type femoral interlocking nail bending tool |
-
2018
- 2018-05-23 CN CN201810500280.0A patent/CN108478269B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20020989U1 (en) * | 2000-11-22 | 2001-03-22 | Yao Meei Huei | Device for placing blockable intramedular nails |
| CN2516289Y (en) * | 2001-12-25 | 2002-10-16 | 黄元真 | Flanging sealing device for metal sheet |
| JP2008044053A (en) * | 2006-08-11 | 2008-02-28 | Max Co Ltd | Stapler |
| CN107052100A (en) * | 2017-06-05 | 2017-08-18 | 江苏海事职业技术学院 | Gantry rotation formula web-like Plate Bending Machine |
| CN208864458U (en) * | 2018-05-23 | 2019-05-17 | 江苏艾为康医疗器械科技有限公司 | Flexible type femoral interlocking nail bending tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108478269A (en) | 2018-09-04 |
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