CN105559871A - Intramedullary nail fixing device - Google Patents
Intramedullary nail fixing device Download PDFInfo
- Publication number
- CN105559871A CN105559871A CN201610094345.7A CN201610094345A CN105559871A CN 105559871 A CN105559871 A CN 105559871A CN 201610094345 A CN201610094345 A CN 201610094345A CN 105559871 A CN105559871 A CN 105559871A
- Authority
- CN
- China
- Prior art keywords
- intramedullary
- bone
- intramedullary pin
- intramedullary nail
- hole
- 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.)
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00933—Material properties bone or bone-like
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention discloses an intramedullary nail fixing device. Multiple groups of through holes are formed in the axial length direction of the side wall of a hollow intramedullary nail, and an injection device extends into a hollow channel formed in the intramedullary nail in a matchable mode. The injection device comprises an injection tube and a piston rod. A jet outlet is formed in the tube wall close to the closed end of the injection tube. A bone filler is injected between the side wall of the intramedullary nail and the inner wall of the marrow cavity of a long bone through the injection device in a filled mode, the solidified bone filler fixes the intramedullary nail, a fixing position is flexible and firm, and long bone damage caused by the intramedullary nail fixing is avoided. The intramedullary nail, the bone filler and the like indwelled in the long bone are all made from a degradable material and is gradually degraded in the long bone healing process, re-operation in a later period is avoided, the operation process is simplified, and the operation cost is saved.
Description
Technical field
The present invention relates to a kind of intramedullary pin for long bone fracture internal fixtion, belong to technical field of medical instruments.
Background technology
Intramedullary pin is a kind of medical apparatus and instruments of relatively more conventional treatment fracture, be generally used for the internal fixtion during tubulose long bone fractures such as radius, humerus, femur, tibia, the axial line of force of fracture site can be controlled, promote union of fracture, therefore, fixing extremely important in long bone inside of intramedullary pin.At present, the mode usually adopted is fixed on long bone by the near-end of intramedullary pin and far-end by nail, and this mode needs to punch to long bone, causes damage to long bone, and operation process is complicated, and operating time is longer.
Summary of the invention
Technical problem to be solved by this invention is the defect overcoming prior art, provides a kind of intramedullary nail fixation device, can firmly fix intramedullary pin, and fixed position can be arranged as required flexibly, the drawback produced when avoiding traditional Intramedullary nailing.
For solving the problems of the technologies described above, the invention provides a kind of intramedullary nail fixation device, it is characterized in that, arrange along the side-wall shaft of the intramedullary pin of hollow to length direction and organize through hole more, in the hollow channel in intramedullary pin, an injection device can be stretched into ordinatedly;
What described injection device comprised that one end closes can the syringe of hold bone implant and a piston rod that can be pushed by the arrival end of syringe;
Exit portal is provided with on the tube wall of the blind end of syringe, when exit portal is communicated with the through hole on intramedullary pin sidewall, by the piston rod pushed, the bone filler in syringe is released from exit portal, and the through hole injection on intramedullary pin sidewall, be filled between intramedullary pin wall outer surface and the thing to be fixed at intramedullary pin place, by the bone filler after solidifying by inner for the to be fixed thing of Intramedullary nailing in its place.
Often organize through hole and comprise the multiple through holes be radially arranged on intramedullary pin sidewall.
Often the multiple through holes organized in through hole arrange along intramedullary pin sidewall radial equipartition.
The another kind of optional technical scheme limiting the filling scope of bone filler is, the gauze of multiple tubular is provided with in intramedullary pin outer cover, by each gauze respectively by coated accordingly for each group of through hole on intramedullary pin sidewall, make to be limited by gauze be filled in around this group lead to the hole site from often organizing the bone filler that penetrates through hole.
The another kind of optional technical scheme limiting the filling scope of bone filler is be provided with the one gauze of tubular in intramedullary pin outer cover, and gauze is tightened by multiple fastening straps and is separated into multistage, and the through hole in every section on all corresponding coated at least one group of intramedullary pin sidewall.
Intramedullary pin and bone filler all adopt degradation material or non-degradable material.
Gauze adopts degradation material.
Described degradation material is degradable artificial bone material; Described non-degradable material is bone cement, autologous bone or allograph bone.
Intramedullary pin is the arc with thing mating shapes to be fixed.
Described syringe is provided with scale value, to indicate the amount of the bone filler of filling.
Thing to be fixed is long bone.
The beneficial effect that the present invention reaches:
Intramedullary nail fixation device of the present invention, intramedullary pin sidewall is arranged and organizes through hole more, by stretching into injection device in intramedullary pin in hollow channel by bone filler along through hole injection fillers between the medullary cavity inwall of intramedullary pin sidewall and long bone, by the bone filler after solidifying, intramedullary pin is fixed, fixed position flexibly, firmly, avoid the damage because fixing intramedullary pin causes long bone, operation technique is easy, and operating time is shorter; Be stranded in intramedullary pin in long bone and bone filler etc. and all adopt degradation material, degrade gradually in the process of long bone healing, avoiding the later stage performs the operation again, simplifies operation process, saves surgery cost.
Accompanying drawing explanation
Fig. 1 is intramedullary pin schematic diagram of the present invention;
Fig. 2 is injection device schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
embodiment 1
As depicted in figs. 1 and 2, intramedullary nail fixation device of the present invention arranges many group through holes 11 along the side-wall shaft of the intramedullary pin 1 of hollow to length direction, an injection device can be stretched into ordinatedly in hollow channel in intramedullary pin, injection device 2 comprises the syringe 21 that one end is closed, the other end is entrance, can hold bone implant in syringe 21.On the tube wall of the blind end 211 of syringe 21, be provided with exit portal 212, in syringe 21, a piston rod 22 can be pushed by arrival end 213.When piston rod 22 pushes in syringe 21, bone filler is released from exit portal 212, and the through hole injection on intramedullary pin sidewall is filled between the medullary cavity inwall of the long bone at intramedullary pin wall outer surface and intramedullary pin place, after bone filler solidifies, by Intramedullary nailing in the long bone at its place.
Preferably, often organize through hole and comprise the multiple through holes be radially arranged on sidewall, the radially uniform arrangement of each through hole.
Intramedullary pin and bone filler can adopt non-degradable material general at present, and as intramedullary pin adopts metal intramedullary nail etc., bone filler adopts bone cement.
In other embodiments, the intramedullary pin and bone filler etc. be stranded in long bone all can adopt degradation material, degrade gradually in the process of long bone healing, preferably, the time of degraded is corresponding with the speed of knitting, and the degree of degraded is slightly later than long symphysis, so that after long bone healing, be stranded in intramedullary pin in long bone and bone filler can realize degraded.
The syringe of injection device is provided with scale value, to indicate the amount of the bone filler of filling.
Preferably, intramedullary pin is the arc with the natural torsion mating shapes of long bone.
By regulating the exit portal of syringe to be communicated with one of them through hole in a certain group of through hole on intramedullary pin sidewall, between the medullary cavity inwall that the bone filler in syringe can be filled to the intramedullary pin wall outer surface of this through hole position and the long bone at intramedullary pin place; Rotating syringe makes the exit portal on it be communicated with successively with other through holes in this group through hole on intramedullary pin sidewall, thus realizes filling the circumference between the intramedullary pin wall outer surface of this group through hole position and the medullary cavity inwall of the long bone at intramedullary pin place fixing.As required, regulate the relative position of syringe and intramedullary pin, other are organized through hole and are communicated with on intramedullary pin sidewall to make the exit portal of syringe, thus realization is fixed surrounding's filling of other through hole positions of intramedullary pin.
embodiment 2
The another kind of optional technical scheme limiting the filling scope of bone filler is, the gauze of multiple tubular is provided with in intramedullary pin outer cover, respectively that each group of through hole on intramedullary pin sidewall is coated accordingly respectively by each gauze, make to be limited by gauze be filled in around this group lead to the hole site from often organizing the bone filler that penetrates through hole.
Meanwhile, in other embodiments, gauze can also be arranged to one, entirety is set in intramedullary pin outside, and gauze is tightened by multiple fastening straps, and the gauze of intramedullary pin outside is separated into multistage, and the through hole in every section on all coated one group of intramedullary pin sidewall.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (10)
1. an intramedullary nail fixation device, is characterized in that, arranges and organizes through hole more, can stretch into an injection device ordinatedly in the hollow channel in intramedullary pin along the side-wall shaft of the intramedullary pin of hollow to length direction;
What described injection device comprised that one end closes can the syringe of hold bone implant and a piston rod that can be pushed by the arrival end of syringe;
Exit portal is provided with on the tube wall of the blind end of syringe, when exit portal is communicated with the through hole on intramedullary pin sidewall, by the piston rod pushed, the bone filler in syringe is released from exit portal, and the through hole injection on intramedullary pin sidewall, be filled between intramedullary pin wall outer surface and the thing to be fixed at intramedullary pin place, by the bone filler after solidifying by inner for the to be fixed thing of Intramedullary nailing in its place.
2. intramedullary nail fixation device according to claim 1, is characterized in that, often organizes through hole and comprises the multiple through holes be radially arranged on intramedullary pin sidewall.
3. intramedullary nail fixation device according to claim 1 and 2, is characterized in that, often the multiple through holes organized in through hole arrange along intramedullary pin sidewall radial equipartition.
4. intramedullary nail fixation device according to claim 1, it is characterized in that, the gauze of multiple tubular is provided with in intramedullary pin outer cover, by each gauze respectively by coated accordingly for each group of through hole on intramedullary pin sidewall, make to be limited by gauze be filled in around this group lead to the hole site from often organizing the bone filler that penetrates through hole.
5. intramedullary nail fixation device according to claim 1, is characterized in that, is provided with the one gauze of tubular in intramedullary pin outer cover, and gauze is tightened by multiple fastening straps and is separated into multistage, and the through hole in every section on all corresponding coated at least one group of intramedullary pin sidewall.
6. the intramedullary nail fixation device according to claim 1,4 or 5, is characterized in that, intramedullary pin and bone filler all adopt degradation material or non-degradable material; Described gauze adopts degradation material.
7. intramedullary nail fixation device according to claim 6, is characterized in that, described degradation material is degradable artificial bone material; Described non-degradable material is bone cement, autologous bone or allograph bone.
8. intramedullary nail fixation device according to claim 1, is characterized in that, described intramedullary pin is the arc with thing mating shapes to be fixed.
9. intramedullary nail fixation device according to claim 1, is characterized in that, described syringe is provided with scale value, to indicate the amount of the bone filler of filling.
10. intramedullary nail fixation device according to claim 1, is characterized in that, described thing to be fixed is long bone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094345.7A CN105559871B (en) | 2016-02-22 | 2016-02-22 | Intramedullary nail fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610094345.7A CN105559871B (en) | 2016-02-22 | 2016-02-22 | Intramedullary nail fixation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105559871A true CN105559871A (en) | 2016-05-11 |
| CN105559871B CN105559871B (en) | 2018-03-06 |
Family
ID=55870912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610094345.7A Active CN105559871B (en) | 2016-02-22 | 2016-02-22 | Intramedullary nail fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105559871B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877976A (en) * | 2019-11-26 | 2020-03-13 | 杭州电子科技大学 | Variable-cross-section high-strength degradable bar and manufacturing method thereof |
| CN110877977A (en) * | 2019-11-26 | 2020-03-13 | 杭州电子科技大学 | High-strength degradable bar and manufacturing method thereof |
Citations (11)
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|---|---|---|---|---|
| US4653487A (en) * | 1986-01-29 | 1987-03-31 | Maale Gerhard E | Intramedullary rod assembly for cement injection system |
| WO1995015732A1 (en) * | 1993-12-06 | 1995-06-15 | Coutts Richard D | Fixation of orthopedic devices |
| US5578035A (en) * | 1995-05-16 | 1996-11-26 | Lin; Chih-I | Expandable bone marrow cavity fixation device |
| CN1835720A (en) * | 2001-07-25 | 2006-09-20 | Disc整形外科技术股份有限公司 | Deformable tools and implants |
| CN2905092Y (en) * | 2006-05-12 | 2007-05-30 | 上海凯利泰医疗科技有限公司 | Balloon catheter for expanding vertebra |
| CN201591608U (en) * | 2010-01-20 | 2010-09-29 | 黄春河 | Volume testing and filling device |
| CN101909534A (en) * | 2007-11-16 | 2010-12-08 | 新特斯有限责任公司 | Porous containment device and associated method for stabilization of vertebral compression fractures |
| CN102940523A (en) * | 2012-11-26 | 2013-02-27 | 中国人民解放军成都军区总医院 | Assembly for reinforcing injectable vertebral pedicle screw |
| CN103479420A (en) * | 2013-10-12 | 2014-01-01 | 李建民 | Intramedullary nail |
| CN203468720U (en) * | 2013-09-22 | 2014-03-12 | 北京理贝尔生物工程研究所有限公司 | Tibia hollow intramedullary nail |
| CN103654923A (en) * | 2012-09-19 | 2014-03-26 | 上海微创医疗器械（集团）有限公司 | Support system capable of preventing bone cement leakage and application thereof |
-
2016
- 2016-02-22 CN CN201610094345.7A patent/CN105559871B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4653487A (en) * | 1986-01-29 | 1987-03-31 | Maale Gerhard E | Intramedullary rod assembly for cement injection system |
| WO1995015732A1 (en) * | 1993-12-06 | 1995-06-15 | Coutts Richard D | Fixation of orthopedic devices |
| US5578035A (en) * | 1995-05-16 | 1996-11-26 | Lin; Chih-I | Expandable bone marrow cavity fixation device |
| CN1835720A (en) * | 2001-07-25 | 2006-09-20 | Disc整形外科技术股份有限公司 | Deformable tools and implants |
| CN2905092Y (en) * | 2006-05-12 | 2007-05-30 | 上海凯利泰医疗科技有限公司 | Balloon catheter for expanding vertebra |
| CN101909534A (en) * | 2007-11-16 | 2010-12-08 | 新特斯有限责任公司 | Porous containment device and associated method for stabilization of vertebral compression fractures |
| CN201591608U (en) * | 2010-01-20 | 2010-09-29 | 黄春河 | Volume testing and filling device |
| CN103654923A (en) * | 2012-09-19 | 2014-03-26 | 上海微创医疗器械（集团）有限公司 | Support system capable of preventing bone cement leakage and application thereof |
| CN102940523A (en) * | 2012-11-26 | 2013-02-27 | 中国人民解放军成都军区总医院 | Assembly for reinforcing injectable vertebral pedicle screw |
| CN203468720U (en) * | 2013-09-22 | 2014-03-12 | 北京理贝尔生物工程研究所有限公司 | Tibia hollow intramedullary nail |
| CN103479420A (en) * | 2013-10-12 | 2014-01-01 | 李建民 | Intramedullary nail |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877976A (en) * | 2019-11-26 | 2020-03-13 | 杭州电子科技大学 | Variable-cross-section high-strength degradable bar and manufacturing method thereof |
| CN110877977A (en) * | 2019-11-26 | 2020-03-13 | 杭州电子科技大学 | High-strength degradable bar and manufacturing method thereof |
| CN110877977B (en) * | 2019-11-26 | 2022-09-30 | 杭州电子科技大学 | High-strength degradable bar and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105559871B (en) | 2018-03-06 |
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