CN104352273A - Device for preventing femoral head necrosis after femoral neck fracture and treating femoral head necrosis - Google Patents
Device for preventing femoral head necrosis after femoral neck fracture and treating femoral head necrosis Download PDFInfo
- Publication number
- CN104352273A CN104352273A CN201410541109.6A CN201410541109A CN104352273A CN 104352273 A CN104352273 A CN 104352273A CN 201410541109 A CN201410541109 A CN 201410541109A CN 104352273 A CN104352273 A CN 104352273A
- Authority
- CN
- China
- Prior art keywords
- screw
- negative pressure
- fracture
- negative tube
- threaded post
- 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.)
- Granted
Links
- 208000020089 femoral neck fracture Diseases 0.000 title claims abstract description 9
- 230000017074 necrotic cell death Effects 0.000 title abstract description 5
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 28
- 206010017076 Fracture Diseases 0.000 claims abstract description 28
- 230000008439 repair process Effects 0.000 claims abstract description 15
- 208000007875 Femur Head Necrosis Diseases 0.000 claims description 16
- 210000002436 femur neck Anatomy 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 102000005789 Vascular Endothelial Growth Factors Human genes 0.000 abstract description 3
- 108010019530 Vascular Endothelial Growth Factors Proteins 0.000 abstract description 3
- 230000035876 healing Effects 0.000 abstract description 3
- 206010063560 Excessive granulation tissue Diseases 0.000 abstract description 2
- 210000001126 granulation tissue Anatomy 0.000 abstract description 2
- 108010009583 Transforming Growth Factors Proteins 0.000 abstract 2
- 102000009618 Transforming Growth Factors Human genes 0.000 abstract 2
- 210000004369 blood Anatomy 0.000 description 6
- 239000008280 blood Substances 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
- 210000000689 upper leg Anatomy 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010028851 Necrosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 210000003677 hemocyte Anatomy 0.000 description 1
- 229940000351 hemocyte Drugs 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000000963 osteoblast Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000009645 skeletal growth Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000008467 tissue growth Effects 0.000 description 1
- 230000002792 vascular 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
- A61B17/74—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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to fixation and repair at the positions of femoral neck fractures, in particular to a device for preventing femoral head necrosis after femoral neck fractures and treating the femoral head necrosis. The device comprises a hollow repair screw arranged at a femoral neck fracture; a section of threads screwed in a femoral head is formed in the inner end of the repair screw; a plurality of through holes communicated with the inner cavity of the hollow repair screw are formed in the section of screw threads; a connecting head is arranged at the outer end of the repair screw, and a negative pressure pipe connected with a negative pressure machine is communicated with the inner cavity through the connecting head. According to the device, the negative pressure environment is formed around the inner end of the repair screw by adopting the negative pressure pipe, and thus the mechanical stretching of cells at the fracture is realized, the growth of the cells and granulation tissue is promoted, the expression of cell factors such as TGFs (Transforming Growth Factors) and VEGFs (Vascular Endothelial Growth Factors) is promoted, and the purpose of quick healing is achieved; meanwhile, a reverse threaded column is adopted to be connected with the negative pressure pipe, and when the negative pressure pipe is detached, the repair screw is more fastened, so that the safety of operation is improved.
Description
Technical field
The present invention relates to the fixing of fracture of femoral neck breaking part and repair, is the device of prevention After femoral neck fracture femur head necrosis and treatment femur head necrosis specifically.
Background technology
Fracture of femoral neck often betides old people.Along with the life of people, its sickness rate day by day increases, and especially along with aged tendency of population, this disease has become serious social problem, there are nonunion and Avascular Necrosis Of Femur Head two main bugbears in its clinical treatment.So far, the many-side such as treatment and result of fracture of femoral neck still leaves over many an open questions.Because violence causes betiding youthful fracture of femoral neck, the blood fortune also due to fracture of femoral neck place is poor, usually causes the femur head necrosis in later stage.
The particular location that fracture of femoral neck ruptures according to bone is different and be divided into polytype, its Therapeutic Method is also complicated various, the difficulty for the treatment of is also relatively high, as malpractice or unsuccessfully may to have an impact to local blood supply, fracture fracture location even may be there is not exclusively closed and cause femur head necrosis.Usually, surgeon can select two to four compression screw fixations to be fixed fracture breaking part as internal fixation nail, thus reduces the dislocation of fracture line and capitally to subside.At present, the complication of fracture of femoral neck has: 1, fracture of femoral neck place disunion, and fracture of femoral neck generation disunion is more common, and its disunion rate of bibliographical information is 7%-15%, and in extremity fracture, incidence rate is the highest.2, Avascular Necrosis Of Femur Head is the common complication of fracture of femoral neck, and in recent years along with the progress for the treatment of, union of fracture rate can reach more than 90%.But femur head necrosis rate is so far still without significantly declining.The treatment of current femur head necrosis has neck of femur drilling decompression, vascular pedicle bone block Transfer, and hip replacement etc., all bring no small wound and misery to patient, and unsatisfied effect.
Summary of the invention
For above-mentioned technical problem, the invention provides one and can improve the postoperative femoral head blood fortune of fracture of femoral neck, promote healing of femoral neck fracture, prevention femur head necrosis, and the device for the treatment of femur head necrosis.
The present invention solves the problems of the technologies described above adopted technical scheme: the device of prevention After femoral neck fracture femur head necrosis and treatment femur head necrosis, comprise the hollow being arranged at fracture of femoral neck breaking part and repair screw, this reparation screw the inner forms and is screwed into capital one section of screw thread, and this section of screw thread is opened the several through holes repairing screw inner space with this hollow; The outer end of described reparation screw is provided with union joint, connects the negative tube of Negative pressure machine by this union joint and described inner space.
As preferably, the outer face of described reparation screw is extended with flange to periphery wall, described union joint comprises and is arranged on threaded post contrary with the rotation direction of described one section of screw thread on this flange, and described negative tube and this threaded post are carried out sealing thread and be connected, and this threaded post is by negative tube and described inner space.
As preferably, described threaded post is cannulated threaded post, negative tube and inner chamber described in its cavity connects.
As preferably, described threaded post has axially opened several negative pressure hole, and described negative tube is by this several negative pressure hole and described inner space.
As preferably, described flange outer periphery is outer-hexagonal shape.
Preferred as another kind, described union joint comprises the nut of described reparation screw, on this nut, ecto-entad is provided with the female thread contrary with the rotation direction of described one section of screw thread, and described negative tube and this female thread carry out sealing thread and be connected, this negative tube and described inner space.
As preferably, at the bottom of the tooth of described one section of screw thread, open described several through hole.
As preferably, described breaking part is also provided with at least one piece of forcing screw.
As can be known from the above technical solutions, the present invention adopts negative tube to make the inner of reparation screw form subnormal ambient around, thus cause the trend of hemocyte to move, increase fracture site blood fortune, skeletal growth factor is assembled at fracture end or negative pressuren zone, promote osteoblast and granulation tissue growth, the cytokine-expressings such as TGF, VEGF are promoted, thus reaches the object of quickly-healing; In addition, reparation screw tail end of the present invention adopts reverse thread post to be connected with threaded negative tube, when laying down negative tube, can ensure to repair screw more fastening, improve the safety of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of optimal way of the present invention;
Fig. 2 is the structural representation that the present invention repairs screw;
Fig. 3 is the structural representation that the present invention differs from the union joint in Fig. 2;
Fig. 4 is the structural representation that the present invention's another kind repairs screw.
Detailed description of the invention
Below in conjunction with Fig. 1, Fig. 2 introduce in detail the inventive system comprises be arranged at neck of femur 1 fracture breaking part hollow repair screw 2, this reparation screw the inner forms and is screwed into capital one section of screw thread 21, this section of screw thread is opened the several through holes 23 repaired screw inner chamber 22 with this hollow and be communicated with, through hole can be opened at the bottom of tooth, also can open at crest, repair the inner end face of screw can close, also can have opening; The tail end of described reparation screw is provided with union joint 3, the negative tube of one connection Negative pressure machine (not shown) or ward central negative pressure 4 are by this union joint and described inner space, Negative pressure machine or central negative pressure provide subnormal ambient by negative tube, union joint, inner chamber, through hole for repairing the inner of screw successively, and negative tube is that high molecule plastic is made.When performing the operation, also at least one piece of forcing screw 5 can be also set at described breaking part.The present invention can form subnormal ambient in the inner by such scheme, and union of fracture is accelerated.In the femoral head of fracture of femoral neck, the screw thread repairing screw has the function of forcing screw, and fracture end is fully combined.Meanwhile, in neck of femur, form a negative pressuren zone, blood fortune can be accelerated and circulate in femoral head, strengthen the blood fortune in femoral head, avoid capital ischemic necrosis, and accelerate the blood fortune of fracture end, promote fracture end healing.
In the present invention, the outer face of described reparation screw 2 is extended with flange 24 to periphery wall, described union joint comprises and is arranged on threaded post 31 contrary with the rotation direction of described one section of screw thread on this flange, described negative tube and this threaded post are carried out sealing thread and are connected, this threaded post is by negative tube and described inner space, and sealing thread connects can provide better subnormal ambient.After when reparation, screw is screwed into breaking part, first grip flange, then be screwed in threaded post by negative tube, to prevent from repairing screw loosening when stubborn negative tube.After treatment terminates, by the direction of rotation of driving in the wrong direction, remove the connection of pipe pressure pipe and threaded post.
As preferably, described threaded post can be cannulated threaded post, negative tube and inner chamber described in its cavity connects; Preferred as another kind, axially can open several negative pressure hole 32 in threaded post, described negative tube passes through this several negative pressure hole and described inner space, as Fig. 3; No matter adopt that mode, while should ensureing that inner chamber communicates with negative tube, the junction of threaded post and negative tube seals.In the present invention, described flange outer periphery is outer-hexagonal shape, when clamping flange, can adopt conventional die nut, improves the adaptability of device.
As Fig. 4, as another kind of mode of the present invention, described connection, 3 nuts 33 comprising described reparation screw, on this nut, ecto-entad is provided with the female thread 34 contrary with the rotation direction of described one section of screw thread, external screw thread and this female thread of described negative tube carry out sealing thread and are connected, this negative tube and described inner space.Nut can adopt interior hexagonal (hexagon)nut, nut is opened the through hole of inner space, female thread described in through-hole wall molding, and this version is more simple, and cost is lower, only need carry out a small amount of improvement to existing screw and just can realize.
Above-mentioned embodiment is used for illustrative purposes only, and be not limitation of the present invention, the those of ordinary skill of relevant technical field, without departing from the spirit and scope of the present invention, can also make various change and modification, therefore all equivalent technical schemes also should belong to category of the present invention.
Claims (8)
1. prevent the device of After femoral neck fracture femur head necrosis and treatment femur head necrosis, it is characterized in that: comprise the hollow being arranged at fracture of femoral neck breaking part and repair screw, this reparation screw the inner forms and is screwed into capital one section of screw thread, and this section of screw thread is opened the several through holes repairing screw inner space with this hollow; The outer end of described reparation screw is provided with union joint, connects the negative tube of Negative pressure machine by this union joint and described inner space.
2. device according to claim 1, it is characterized in that: the outer face of described reparation screw is extended with flange to periphery wall, described union joint comprises and is arranged on threaded post contrary with the rotation direction of described one section of screw thread on this flange, described negative tube and this threaded post are carried out sealing thread and are connected, and this threaded post is by negative tube and described inner space.
3. device according to claim 2, is characterized in that: described threaded post is cannulated threaded post, negative tube and inner chamber described in its cavity connects.
4. device according to claim 2, is characterized in that: described threaded post has axially opened several negative pressure hole, and described negative tube is by this several negative pressure hole and described inner space.
5. prosthetic device according to claim 2, is characterized in that: described flange outer periphery is outer-hexagonal shape.
6. device according to claim 1, it is characterized in that: described union joint comprises the nut of described reparation screw, on this nut, ecto-entad is provided with the female thread contrary with the rotation direction of described one section of screw thread, described negative tube and this female thread carry out sealing thread and are connected, this negative tube and described inner space.
7. according to the device in claim 1-6 described in any one, it is characterized in that: at the bottom of the tooth of described one section of screw thread, opened described several through hole.
8. device according to claim 1, is characterized in that: described breaking part is also provided with at least one piece of forcing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541109.6A CN104352273B (en) | 2014-10-14 | 2014-10-14 | Prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541109.6A CN104352273B (en) | 2014-10-14 | 2014-10-14 | Prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104352273A true CN104352273A (en) | 2015-02-18 |
| CN104352273B CN104352273B (en) | 2018-04-27 |
Family
ID=52519657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410541109.6A Active CN104352273B (en) | 2014-10-14 | 2014-10-14 | Prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104352273B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984831A (en) * | 2019-04-08 | 2019-07-09 | 毛玉江 | A kind of femoral head is interior to depressurize self-circulation power hip screw system |
| CN111529033A (en) * | 2020-05-27 | 2020-08-14 | 阳江市人民医院 | Femoral neck fracture fixing device |
| CN112935333A (en) * | 2021-01-27 | 2021-06-11 | 湖南申亿五金标准件有限公司 | Lightweight reticular hollow screw and production and processing device thereof |
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| EP0441577A2 (en) * | 1990-02-06 | 1991-08-14 | SMITH & NEPHEW RICHARDS, INC. | Intramedullary hip screw |
| CN2221389Y (en) * | 1995-04-21 | 1996-03-06 | 尹胜廷 | Outskin taking out pressure screw |
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| US20060036253A1 (en) * | 2004-04-20 | 2006-02-16 | Spineco, Inc. | Implant device |
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| CN201930067U (en) * | 2010-12-29 | 2011-08-17 | 洪宁 | Pressurization hollow screw |
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| RU2475203C1 (en) * | 2011-12-22 | 2013-02-20 | Государственное бюджетное учреждение здравоохранения Московской области "Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского" (ГБУЗ МО МОНИКИ им. М.Ф. Владимирского) | Method for intramedullary osteosynthesis of long bones |
| US20130245602A1 (en) * | 2003-07-15 | 2013-09-19 | Spinal Generations, Llc | Method and device for delivering medicine to bone |
| WO2014113879A1 (en) * | 2013-01-25 | 2014-07-31 | Rayes, Fady | Cannulated telescopic femoral neck screw device and related fixation method |
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2014
- 2014-10-14 CN CN201410541109.6A patent/CN104352273B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0441577A2 (en) * | 1990-02-06 | 1991-08-14 | SMITH & NEPHEW RICHARDS, INC. | Intramedullary hip screw |
| CN2221389Y (en) * | 1995-04-21 | 1996-03-06 | 尹胜廷 | Outskin taking out pressure screw |
| US20050234464A1 (en) * | 2001-09-19 | 2005-10-20 | Brannon James K | Endoscopic bone debridement |
| US20120041395A1 (en) * | 2003-07-15 | 2012-02-16 | Spinal Generations, Llc | Method and device for delivering medicine to bone |
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| US20060036253A1 (en) * | 2004-04-20 | 2006-02-16 | Spineco, Inc. | Implant device |
| CN2834442Y (en) * | 2005-11-08 | 2006-11-08 | 邢庆昌 | Porous hollow pressurized screw fixator for fracture of neck of femur |
| CN201019824Y (en) * | 2006-12-05 | 2008-02-13 | 唐佩福 | Special inner fixer for preventing femur and cervical vertebra disconnecting after fracture and femoral head ischemic necrosis |
| CN102036612A (en) * | 2008-03-28 | 2011-04-27 | 骨科技术公司 | Bone anchors for orthopedic applications |
| CN101721241A (en) * | 2009-10-30 | 2010-06-09 | 杨新明 | Hollow titanium rod for supporting collapse of femoral head |
| CN201930067U (en) * | 2010-12-29 | 2011-08-17 | 洪宁 | Pressurization hollow screw |
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| RU2475203C1 (en) * | 2011-12-22 | 2013-02-20 | Государственное бюджетное учреждение здравоохранения Московской области "Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского" (ГБУЗ МО МОНИКИ им. М.Ф. Владимирского) | Method for intramedullary osteosynthesis of long bones |
| WO2014113879A1 (en) * | 2013-01-25 | 2014-07-31 | Rayes, Fady | Cannulated telescopic femoral neck screw device and related fixation method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984831A (en) * | 2019-04-08 | 2019-07-09 | 毛玉江 | A kind of femoral head is interior to depressurize self-circulation power hip screw system |
| CN109984831B (en) * | 2019-04-08 | 2021-01-05 | 毛玉江 | Femoral head internal decompression self-circulation dynamic hip screw system |
| CN111529033A (en) * | 2020-05-27 | 2020-08-14 | 阳江市人民医院 | Femoral neck fracture fixing device |
| CN112935333A (en) * | 2021-01-27 | 2021-06-11 | 湖南申亿五金标准件有限公司 | Lightweight reticular hollow screw and production and processing device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104352273B (en) | 2018-04-27 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhou Jiahui Inventor after: Liu Zhendong Inventor after: Chen Tengfei Inventor after: Wu Song Inventor after: Zhang Kexiang Inventor after: Wang Kuixiang Inventor before: Liu Zhendong Inventor before: Zhou Jiahui Inventor before: Chen Tengfei Inventor before: Wu Song Inventor before: Zhang Kexiang Inventor before: Wang Kuixiang |
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Effective date of registration: 20180319 Address after: 410000 No. 138, Tongzi Road, Yuelu District, Hunan, Changsha Applicant after: The Third Hospital of Central South University Address before: 410000 No. 138, Tongzi Road, Yuelu District, Hunan, Changsha Applicant before: Liu Zhendong Applicant before: Zhou Jiahui |
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