CN108542485A - A kind of femoral interlocking nail - Google Patents
A kind of femoral interlocking nail Download PDFInfo
- Publication number
- CN108542485A CN108542485A CN201810147672.3A CN201810147672A CN108542485A CN 108542485 A CN108542485 A CN 108542485A CN 201810147672 A CN201810147672 A CN 201810147672A CN 108542485 A CN108542485 A CN 108542485A
- Authority
- CN
- China
- Prior art keywords
- fixed part
- pinning
- bow arc
- lock hole
- diameter
- 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.)
- Pending
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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
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/7241—Intramedullary pins, nails or other devices with special means of locking the nail to the bone the nail having separate elements through which screws pass
-
- 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
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
Landscapes
- 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 present invention relates to a kind of femoral interlocking nails, including short nail and spike；There is included angle A between wherein short nail fixed part and preceding bow arc；Wherein there is included angle B between spike fixed part and preceding bow arc, is arranged in preceding bow arc there are three preceding lock hole, the first pinning and the second pinning use cross lock structure.Bow arc before the short nail distally of the present invention is bonded pulp cavity, and postoperative reduce contacts with pulp cavity inner wall, reduces patient pain；The preceding bow arc of spike and the angle of fixed part are 12 degree, are more bonded pulp cavity, be inserted into surgical procedure it is smooth, reduce stress concentration be follow-up distal locking nail aim at it is more accurate；The distal end of spike is designed using three pinnings, is formed 15 degree of angles between the first pinning and the second pinning and is formed interlocking, is locked according to stable triangular principle relatively reliable.
Description
Technical field
The present invention relates to medical instruments field more particularly to a kind of femoral interlocking nails.
Background technology
The unmatched bow arc in short nail distal end in traditional femoral interlocking nail, nail easily contact with pulp cavity inner wall after being implanted into pulp cavity, increase
Add patient pain；Turn over that angle is smaller, and anatomic form more differs greatly with chamber and easy tos produce stress concentration, no before spike under bow arc
Easily far-end locking aims at during operation, and traditional spike is that two nails design, and can not form cross lock.
Invention content
In view of the drawbacks described above of the prior art, the object of the present invention is to provide a kind of easy to operate, safe and reliable femurs
Intramedullary nail.
The purpose of the present invention is achieved through the following technical solutions：
A kind of femoral interlocking nail, including short nail and spike；Wherein short nail length is 240mm, what short nail was internally hollow, short nail packet
Include main part, transition part, interconnecting piece, fixed part and preceding bow arc；The diameter of main part be more than fixed part diameter, main part with
Transition part and interconnecting piece be set between fixed part, transition part is taper, interconnecting piece be it is cylindrical, diameter and fixed part it is straight
Diameter is identical；Main part is provided with rear lock hole, and end set has location hole；Fixed part one end is connected with interconnecting piece, the other end
It is connected with preceding bow arc, has included angle A, fixed part to be provided with preceding lock hole, be provided with outside preceding bow arc between fixed part and preceding bow arc
The longitudinal fluting of multiple circumferential direction deciles；Wherein spike is internally hollow, spike packet main part, transition part, interconnecting piece, fixed part
And preceding bow arc；The diameter of main part is more than the diameter of fixed part, and transition part and connection are arranged between main part and fixed part
Portion, transition part are tapers, and interconnecting piece is cylindrical, and diameter is identical as the diameter of fixed part；Main part is provided with rear lock hole
Its end set has location hole；Fixed part one end is connected with interconnecting piece, and the other end is connected with preceding bow arc, fixed part and preceding bow arc it
Between have an included angle B, the longitudinal fluting of multiple circumferential deciles is provided with outside preceding bow arc；Preceding lock hole there are three settings in preceding bow arc,
Lock hole is arranged before two second between lock hole before first, and lock hole is different from the direction of lock hole before second before first,
The direction of lock hole is identical before two second, is inserted into the first pinning before first in lock hole, before two second in lock hole respectively
Two the second pinnings are inserted into, the first pinning and the second pinning use cross lock structure.
Further, the included angle B is 12 degree.
Further, the cross lock structure forms angle C between the first pinning and the second pinning.
Further, the angle C is 15 degree.
Compared with the existing technology, the features of the present invention and progress are as follows：
1, bow arc before short nail distally of the invention is bonded pulp cavity, and postoperative reduce contacts with pulp cavity inner wall, reduces patient pain.
2, the preceding bow arc of spike and the angle of fixed part of the invention are 12 degree, are more bonded pulp cavity, are inserted in surgical procedure
Enter it is smooth, reduce stress concentration be follow-up distal locking nail aim at it is more accurate.
3, the distal end of spike of the invention is designed using three pinnings, and 15 degree of angles are formed between the first pinning and the second pinning
Interlocking is formed, is locked according to stable triangular principle relatively reliable.
Description of the drawings
Fig. 1：Short pin structure plan view；
Fig. 2：First visual angle spike structural perspective；
Fig. 3：Second visual angle spike structural perspective.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of femoral interlocking nail, including short nail 1 and spike 8；Wherein 1 length of short nail is 240mm, short nail 1
It is internally hollow, short nail 1 includes main part 101, transition part 102, interconnecting piece 105, fixed part 103 and preceding bow arc 5；Main body
The diameter in portion 101 is more than the diameter of fixed part 103, and transition part 102 and connection are arranged between main part 101 and fixed part 103
Portion 105, transition part 102 are tapers, and interconnecting piece 105 is cylindrical, and interconnecting piece 105 plays the role of further transition, diameter
It is identical as the diameter of fixed part 103；Main part 101 is provided with rear lock hole 2, and end set has location hole 104；Fixed part
103 one end are connected with interconnecting piece 105, and the other end is connected with preceding bow arc 5, there is included angle A between fixed part 103 and preceding bow arc 5, fixed
Portion 103 is provided with preceding lock hole 3, and 5 outside of preceding bow arc is provided with the longitudinal fluting 4 of multiple circumferential deciles.1 distally anterior arch of short nail
Arc 5 is bonded pulp cavity, and postoperative reduce contacts with pulp cavity inner wall, reduces patient pain.
As Figure 2-3, wherein spike 8 is internally hollow, spike 8 packet main part 601, transition part 602, interconnecting piece
603, fixed part 604 and preceding bow arc 7；The diameter of main part 1601 is more than the diameter of fixed part 604, main part 601 and fixation
Transition part 602 and interconnecting piece 603 are set between portion 604, and transition part 602 is taper, and interconnecting piece 603 is cylindrical, interconnecting piece
603 play the role of further transition, and diameter is identical as the diameter of fixed part 604；Main part 601 is provided with rear lock hole
13, end set has location hole 605；604 one end of fixed part is connected with interconnecting piece 603, and the other end is connected with preceding bow arc 7, Gu
Determine have included angle B between portion 604 and preceding bow arc 7,7 outside of preceding bow arc is provided with the longitudinal fluting 12 of multiple circumferential deciles；Preceding bow arc 7
Upper setting is there are three preceding lock hole 8, and lock hole 81 is arranged after two second between preceding lock hole 8 before 81,8, first, before first
Lock hole 81 is different from the direction of lock hole before second 8, and the direction of lock hole 8 is identical before two second, lock hole 81 before first
The first pinning 10 of middle insertion is inserted into two the second pinnings 9, the first pinning 10 and second lock before two second respectively in lock hole 8
Nail 9 is using cross lock structure 11.
Further, included angle B be 12 degree, be more bonded pulp cavity, be inserted into surgical procedure it is smooth, reduction stress concentration be after
Continuous distal locking nail aims at more accurate.
Further, cross lock structure 11 forms angle C between the first pinning 10 and the second pinning 9 and forms interlocking,
It is locked according to stable triangular principle relatively reliable.
Further, angle C is 15 degree, and femur locking effect is best.
But those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Invention, and be not used as limitation of the invention, as long as in the spirit of the present invention, to embodiment described above
Variation, modification will all fall within the scope of claims of the present invention.
Claims (4)
1. a kind of femoral interlocking nail, including short nail（1）And spike（8）；It is characterized in that：Wherein short nail（1）Length is 240mm,
Short nail（1）It is internally hollow, short nail（1）Including main part（101）, transition part（102）, interconnecting piece（105）, fixed part
（103）And preceding bow arc（5）；Main part（101）Diameter be more than fixed part（103）Diameter, main part（101）With fixed part
（103）Between transition part is set（102）And interconnecting piece（105）, transition part（102）It is taper, interconnecting piece（105）It is cylinder
Shape, diameter and fixed part（103）Diameter it is identical；Main part（101）It is provided with rear lock hole（20）, end set has fixed
Position hole（104）；Fixed part（103）One end and interconnecting piece（105）It is connected, the other end and preceding bow arc（5）It is connected, fixed part（103）
With preceding bow arc（5）Between have included angle A, fixed part（103）It is provided with preceding lock hole（3）, preceding bow arc（5）Outside is provided with multiple weeks
To the longitudinal fluting of decile（4）；Wherein spike（8）It is internally hollow, spike（8）Packet main part（601）, transition part（602）,
Interconnecting piece（603）, fixed part（604）And preceding bow arc（7）；Main part（601）Diameter be more than fixed part（604）Diameter,
Main part（601）With fixed part（604）Between transition part is set（602）And interconnecting piece（603）, transition part（602）It is taper,
Interconnecting piece（603）It is cylindrical, diameter and fixed part（604）Diameter it is identical；Main part（601）It is provided with rear lock hole
（13）, end set has location hole（605）；Fixed part（604）One end and interconnecting piece（603）It is connected, the other end and preceding bow arc
（7）It is connected, fixed part（604）With preceding bow arc（7）Between have included angle B, preceding bow arc（7）Outside is provided with the vertical of multiple circumferential deciles
To groove（12）；Preceding bow arc（7）There are three preceding lock holes for upper setting（8,81,8）, lock hole before first（81）Setting is at two the
Lock hole before two（8）Between, lock hole before first（81）With second before lock hole（8）Direction it is different, locked before two second
Hole（8）Direction it is identical, lock hole before first（81）The first pinning of middle insertion（10）, lock hole before two second（8）Middle difference
It is inserted into two the second pinnings（9）, the first pinning（10）With the second pinning（9）Using cross lock structure（11）.
2. femoral interlocking nail according to claim 1, it is characterised in that：The included angle B is 12 degree.
3. femoral interlocking nail according to claim 1 or 2, it is characterised in that：The cross lock structure（11）It is first
Pinning（10）With the second pinning（9）Between form angle C.
4. femoral interlocking nail according to claim 3, it is characterised in that：The angle C is 15 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147672.3A CN108542485A (en) | 2018-02-13 | 2018-02-13 | A kind of femoral interlocking nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147672.3A CN108542485A (en) | 2018-02-13 | 2018-02-13 | A kind of femoral interlocking nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108542485A true CN108542485A (en) | 2018-09-18 |
Family
ID=63515956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147672.3A Pending CN108542485A (en) | 2018-02-13 | 2018-02-13 | A kind of femoral interlocking nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108542485A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0257118A1 (en) * | 1986-07-30 | 1988-03-02 | Howmedica GmbH | Osteosynthesis device for the treatment of subtrochanteric fractures |
| JPH0221859A (en) * | 1987-12-14 | 1990-01-24 | Howmedica Internatl Inc Zweignied Kiel | Fixing apparatus for broken bone between rotors in bone marrow |
| CN2337970Y (en) * | 1998-06-12 | 1999-09-15 | 武进第三医疗器械厂 | Intramedullary nail for locking fractured femur |
| EP1260188A1 (en) * | 2001-05-25 | 2002-11-27 | Sulzer Orthopedics Ltd. | Femoral bone nail for implantation in the knee |
| CN101043853A (en) * | 2004-10-14 | 2007-09-26 | 辛迪思有限公司 | Intramedullary pin for insertion in medullary cavity of femur |
| TWI340634B (en) * | 2003-10-21 | 2011-04-21 | Synthes Gmbh | Marrow nail |
| CN201861738U (en) * | 2010-10-28 | 2011-06-15 | 常州康鼎医疗器械有限公司 | Femoral intramedullary nail |
| CN202105011U (en) * | 2011-06-13 | 2012-01-11 | 张世民 | Short type femoral head intramedullary nail with anterior arch radian |
| CN104000647A (en) * | 2014-06-10 | 2014-08-27 | 江苏百易得医疗科技有限公司 | Gamma intramedullary nail |
| CN203943732U (en) * | 2014-07-01 | 2014-11-19 | 张世民 | Femur total length intramedullary pin |
-
2018
- 2018-02-13 CN CN201810147672.3A patent/CN108542485A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0257118A1 (en) * | 1986-07-30 | 1988-03-02 | Howmedica GmbH | Osteosynthesis device for the treatment of subtrochanteric fractures |
| JPH0221859A (en) * | 1987-12-14 | 1990-01-24 | Howmedica Internatl Inc Zweignied Kiel | Fixing apparatus for broken bone between rotors in bone marrow |
| CN2337970Y (en) * | 1998-06-12 | 1999-09-15 | 武进第三医疗器械厂 | Intramedullary nail for locking fractured femur |
| EP1260188A1 (en) * | 2001-05-25 | 2002-11-27 | Sulzer Orthopedics Ltd. | Femoral bone nail for implantation in the knee |
| TWI340634B (en) * | 2003-10-21 | 2011-04-21 | Synthes Gmbh | Marrow nail |
| CN101043853A (en) * | 2004-10-14 | 2007-09-26 | 辛迪思有限公司 | Intramedullary pin for insertion in medullary cavity of femur |
| CN201861738U (en) * | 2010-10-28 | 2011-06-15 | 常州康鼎医疗器械有限公司 | Femoral intramedullary nail |
| CN202105011U (en) * | 2011-06-13 | 2012-01-11 | 张世民 | Short type femoral head intramedullary nail with anterior arch radian |
| CN104000647A (en) * | 2014-06-10 | 2014-08-27 | 江苏百易得医疗科技有限公司 | Gamma intramedullary nail |
| CN203943732U (en) * | 2014-07-01 | 2014-11-19 | 张世民 | Femur total length intramedullary pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |
|
| RJ01 | Rejection of invention patent application after publication |