CN104352273B - Prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis - Google Patents
Prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis Download PDFInfo
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- CN104352273B CN104352273B CN201410541109.6A CN201410541109A CN104352273B CN 104352273 B CN104352273 B CN 104352273B CN 201410541109 A CN201410541109 A CN 201410541109A CN 104352273 B CN104352273 B CN 104352273B
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- screw
- negative tube
- inner cavity
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- 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- 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)
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- Veterinary Medicine (AREA)
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Abstract
The present invention relates to the fixation and reparation of fracture of neck of femur breaking part, specifically prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis, it includes the hollow reparation screw for being arranged at fracture of neck of femur breaking part, the reparation screw the inner forms one section of screw thread for being screwed into femoral head, is issued on this section of screw thread and the hollow several through holes repaired screw inner cavity and connected；The outer end for repairing screw is provided with connector, and the negative tube of a connection Negative pressure machine is connected by the connector with the inner cavity.The present invention makes the inner surrounding of reparation screw form subnormal ambient using negative tube, so as to cause the mechanicalness of breaking part cell to be upheld, promotes cell and granulation tissue growth, lifts the cytokine-expressings such as TGF, VEGF, so as to achieve the purpose that quickly to heal；The present invention is connected using reverse thread column with negative tube at the same time, can ensure that repairing screw more fastens, and improves the security of operation when laying down negative tube.
Description
Technical field
The present invention relates to the fixation and reparation of fracture of neck of femur breaking part, specifically prevents After femoral neck fracture femoral head
Necrosis and the device for the treatment of caput femoris necrosis.
Background technology
Fracture of neck of femur often betides the elderly.Extend with the service life of people, its incidence increasingly increases, especially as people
Mouthful aging, the disease become serious social concern, and there are nonunion and femoral head ischemic necrosis in its clinical treatment
Two main bugbears.So far, the treatment of fracture of neck of femur and result etc. are many-sided still leaves many an open questions.Due to sudden and violent
Power causes the fracture of neck of femur for betiding young man, also due to the blood fortune at fracture of neck of femur is poor, frequently results in the femur in later stage
Head necrosis.
The specific location that fracture of neck of femur is broken according to bone is different and is divided into polytype, its treatment method is also complicated more
Sample, the difficulty for the treatment of is also of a relatively high, such as malpractice or unsuccessful local blood supply may be had an impact, in some instances it may even be possible to sends out
Raw fracture fracture location closure not exclusively causes caput femoris necrosis.In general, surgeon can select two to four pressurized screws
Nail is fixed fracture breaking part as internal fixation nail, so as to reduce the dislocation of fracture line and collapsing for femoral head.Come at present
Say, the complication of fracture of neck of femur has：1st, disunion at fracture of neck of femur, fracture of neck of femur generation disunion is relatively common, text
Offer and report that its disunion rate is 7%-15%, the incidence highest in limbs fracture.2nd, femoral head ischemic necrosis is fracture of neck of femur
Common complication, recently as the progress for the treatment of, union rate is up to more than 90%.But caput femoris necrosis rate is so far still
Decline without obvious.The treatment of caput femoris necrosis at present has neck of femur drilling decompression, vascular pedicle bone piece Transfer, and hip
Joint replacement etc., brings no small wound and pain, and unsatisfied effect to patient.
The content of the invention
For above-mentioned technical problem, the present invention, which provides one kind, can improve the postoperative femoral head blood fortune of fracture of neck of femur, promote stock
Bone fracture of cervical vertebra heals, and prevents caput femoris necrosis, and the device for the treatment of caput femoris necrosis.
Technical solution is used by the present invention solves above-mentioned technical problem：Prevent After femoral neck fracture caput femoris necrosis and
The device of caput femoris necrosis is treated, including is arranged at the hollow reparation screw of fracture of neck of femur breaking part, the reparation screw is inner
Form one section of screw thread for being screwed into femoral head, issued on this section of screw thread with this it is hollow repair that screw inner cavity connect several lead to
Hole；The outer end for repairing screw is provided with connector, and the negative tube for connecting Negative pressure machine is connected by the connector and the inner cavity
It is logical.
Preferably, the outer end for repairing screw, which faces out perisporium, is extended with flange, the connector includes being arranged on
Carry out sealing screw thread with the oppositely oriented threaded post of one section of screw thread, the negative tube on the flange with the threaded post and connect
Connect, which connects negative tube with the inner cavity.
Preferably, the threaded post is cannulated threaded post, its cavity connects the negative tube and inner cavity.
Preferably, the threaded post has axially issued several negative pressure holes, the negative tube by several negative pressure holes with
The inner cavity connection.
Preferably, the flange outer periphery is in outer-hexagonal shape.
As another preferred embodiment, the connector includes the nut of the reparation screw, ecto-entad is set on the nut
The oppositely oriented internal thread with one section of screw thread is equipped with, the negative tube carries out sealing threaded connection with the internal thread, should
Negative tube is connected with the inner cavity.
Preferably, several through holes have been issued at the tooth bottom of one section of screw thread.
Preferably, the breaking part is additionally provided with least one piece of forcing screw.
As can be known from the above technical solutions, the present invention makes the inner surrounding of reparation screw form subnormal ambient using negative tube,
So as to cause the trend of haemocyte to move, increase fracture site blood fortune, makes bone growth factor assemble in fracture end or negative pressuren zone, promotees
Grown into osteoblast and granulation tissue, lift the cytokine-expressings such as TGF, VEGF, so as to reach the mesh quickly to heal
's；In addition, reparation screw tail end of the invention is connected using reverse thread column with threaded negative tube, can lay down negative tube
When, ensure that repairing screw more fastens, and improves the security of operation.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of preferred embodiment of the present invention；
Fig. 2 is the structure diagram that the present invention repairs screw；
Fig. 3 is structure diagram of the present invention different from the connector in Fig. 2；
Fig. 4 is another structure diagram for repairing screw of the invention.
Embodiment
With reference to Fig. 1, Fig. 2 be discussed in detail the inventive system comprises be arranged at neck of femur 1 fracture breaking part it is hollow
Repair screw 2, which forms one section of screw thread 21 for being screwed into femoral head, issued on this section of screw thread with this
Sky repairs several through holes 23 of the connection of screw inner cavity 22, and through hole can be issued at tooth bottom, can also issue in crest, it is inner to repair screw
End face can be closed, and can also have opening；The tail end for repairing screw is provided with connector 3, a connection Negative pressure machine（Do not show in figure
Go out）Negative tube or ward central negative pressure 4 connected by the connector with the inner cavity, Negative pressure machine or central negative pressure pass sequentially through
Negative tube, connector, inner cavity, through hole provide subnormal ambient to repair the inner of screw, and negative tube is made for high molecule plastic.
During operation, also at least one piece of forcing screw 5 can be also set up in the breaking part.The present invention can be formed in the inner through the above scheme
Subnormal ambient so that union is accelerated.In the femoral head of fracture of neck of femur, repairing the screw thread of screw has the work(of forcing screw
Can, fracture end is fully combined together.Meanwhile a negative pressuren zone is formed in neck of femur, blood can be accelerated and transported into femoral head
Circulation, strengthens the blood fortune in femoral head, avoids the ischemic necrosis of femoral head, and accelerates the blood of fracture end to transport, and promotes fracture end to be cured
Close.
In the present invention, the outer end for repairing screw 2 faces out perisporium and is extended with flange 24, and the connector includes setting
The oppositely oriented threaded post 31 with one section of screw thread on the flange is put, the negative tube carries out sealing spiral shell with the threaded post
Line connects, which connects negative tube with the inner cavity, and sealing threaded connection can provide more preferable subnormal ambient.Work as reparation
Screw is screwed into after breaking part, first grip flange, then negative tube is screwed in threaded post, to prevent from repairing when twisting negative tube
Screw loosening.After treatment end, the connection of pipe pressure pipe and threaded post can be released by retrograde direction of rotation.
Preferably, the threaded post can be cannulated threaded post, its cavity connects the negative tube and inner cavity；As another
Kind is preferred, can axially issue several negative pressure holes 32 in threaded post, the negative tube passes through several negative pressure holes and the inner cavity connects
It is logical, such as Fig. 3；No matter that mode, while should ensure that inner cavity is communicated with negative tube, the junction of threaded post and negative tube are used
Sealing.In the present invention, the flange outer periphery is in outer-hexagonal shape, when clamping flange, can use common die nut, is improved
The adaptability of device.
Such as Fig. 4, as the another way of the present invention, the connection, 3 include the nut 33 of the reparation screw, at this
Ecto-entad is provided with the oppositely oriented internal thread 34 with one section of screw thread on nut, and the external screw thread of the negative tube is with being somebody's turn to do
Internal thread carries out sealing threaded connection, which connects with the inner cavity.Nut can use interior hexagonal (hexagon)nut, be opened on nut
Through hole with inner cavity connection, through-hole wall are molded the internal thread, and this structure type is simpler, and cost is relatively low, only need
A small amount of improve is carried out to existing screw to achieve that.
The above embodiment is used for illustrative purposes only, and is not limitation of the present invention, related technical field
Those of ordinary skill, can be with various changes can be made and modification without departing from the spirit and scope of the present invention, therefore institute
There is equivalent technical solution also to belong to scope of the invention.
Claims (7)
1. prevent After femoral neck fracture caput femoris necrosis and treat the device of caput femoris necrosis, it is characterised in that：Including being arranged at
The hollow reparation screw of fracture of neck of femur breaking part, which forms one section of screw thread for being screwed into femoral head, at this
Issued on section screw thread and the hollow several through holes repaired screw inner cavity and connected；The outer end for repairing screw is provided with connection
Head, the negative tube for connecting Negative pressure machine are connected by the connector with the inner cavity；The outer end for repairing screw faces out perisporium
Flange is extended with, the connector includes being arranged on the oppositely oriented threaded post on the flange with one section of screw thread, described
Negative tube carries out sealing threaded connection with the threaded post, which connects negative tube with the inner cavity.
2. device according to claim 1, it is characterised in that：The threaded post is cannulated threaded post, its cavity connects institute
State negative tube and inner cavity.
3. device according to claim 1, it is characterised in that：The threaded post has axially issued several negative pressure holes, described
Negative tube is connected by several negative pressure holes with the inner cavity.
4. device according to claim 1, it is characterised in that：The flange outer periphery is in outer-hexagonal shape.
5. device according to claim 1, it is characterised in that：The connector includes the nut of the reparation screw,
Ecto-entad is provided with the oppositely oriented internal thread with one section of screw thread on the nut, the negative tube and the internal thread into
Row sealing is threadedly coupled, which connects with the inner cavity.
6. according to the device described in any one in claim 1-5, it is characterised in that：Issue at the tooth bottom of one section of screw thread
Several through holes.
7. device according to claim 1, it is characterised in that：The breaking part is additionally provided with 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 CN104352273A (en) | 2015-02-18 |
| CN104352273B true CN104352273B (en) | 2018-04-27 |
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| 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 |
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| CN (1) | CN104352273B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112935333B (en) * | 2021-01-27 | 2022-09-13 | 湖南申亿五金标准件有限公司 | Production and processing device for lightweight reticular hollow screw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5032125A (en) * | 1990-02-06 | 1991-07-16 | Smith & Nephew Richards Inc. | Intramedullary hip screw |
| CN2221389Y (en) * | 1995-04-21 | 1996-03-06 | 尹胜廷 | Outskin taking out pressure screw |
| US20030055316A1 (en) * | 2001-09-19 | 2003-03-20 | Brannon James Kevin | Endoscopic bone debridement |
| US8062270B2 (en) * | 2003-07-15 | 2011-11-22 | Spinal Generations, Llc | Method and device for delivering medicine to bone |
| US8870836B2 (en) * | 2003-07-15 | 2014-10-28 | Spinal Generations, Llc | Method and device for delivering medicine to bone |
| CA2580101A1 (en) * | 2004-09-14 | 2006-03-23 | 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 |
| US20100082072A1 (en) * | 2008-03-28 | 2010-04-01 | Sybert Daryl R | 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 |
| CN201920878U (en) * | 2011-01-25 | 2011-08-10 | 广州医学院第二附属医院 | Caput femoris support frame |
| CN202154740U (en) * | 2011-06-23 | 2012-03-07 | 安志刚 | Intramedullary nail for treating long bone fracture postoperative infection |
| 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 |
| US20140214034A1 (en) * | 2013-01-25 | 2014-07-31 | Fady Rayes | Cannulated telescopic femoral neck screw device and related fixation method |
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2014
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| CN104352273A (en) | 2015-02-18 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| 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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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
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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