CN104083199A - Self-locking pressurizing intramedullary nail capable of making two ends of fracture portion tightly joined - Google Patents
Self-locking pressurizing intramedullary nail capable of making two ends of fracture portion tightly joined Download PDFInfo
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- CN104083199A CN104083199A CN201410357935.5A CN201410357935A CN104083199A CN 104083199 A CN104083199 A CN 104083199A CN 201410357935 A CN201410357935 A CN 201410357935A CN 104083199 A CN104083199 A CN 104083199A
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- intramedullary nail
- fracture
- intramedullary
- core body
- intramedullary pin
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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
- A61B17/72—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
- A61B17/72—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
- A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
-
- 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
- A61B17/7283—Intramedullary pins, nails or other devices with special cross-section of the nail
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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)
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- Veterinary Medicine (AREA)
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Abstract
A self-locking pressurizing intramedullary nail capable of making the two ends of a fracture portion tightly joined comprises an intramedullary nail body. An anti-turning protrusion is arranged at the near end of the intramedullary nail body. A core is arranged in the intramedullary nail body, an inner locking pin is hinged to the position, located in the intramedullary nail body, on the core, and an inclined hole for the inner locking pin to penetrate through is formed in the intramedullary nail body and is inclined upwards from interior to exterior. An axial driving device which is connected with the core and makes the core axially move is arranged at one end of the intramedullary nail body. When the intramedullary nail is installed for use, the intramedullary nail is fixed to the near end of the fracture portion through the anti-turning protrusion, the core in the intramedullary nail body is made to move towards the near end of the intramedullary nail body through the axial driving device, so that the inner locking pin penetrates through the inclined hole of the intramedullary nail body and enters the inner wall of the marrow cavity, two opposite acting forces are formed at the two ends of the fracture portion, the ends of the fracture portion are pressurized, and thus the two ends of the fracture portion can be tightly joined. When the intramedullary nail is taken out, the operations are performed reversely, the inner locking pin is taken back into the intramedullary nail body through the driving device, and then the intramedullary nail is taken out through external force.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to the fixedly self-locking compress intramedullary nail of the made fracture two ends fluid-tight engagement of use of a kind of orthopaedics.
Background technology
Operative treatment for long bone shaft fracture adopts the fixationes such as intramedullary needle, steel plate, external fixer conventionally at present, in internal fixation by intramedullary pin, general intramedullary needle is provided with closely, the pinning through hole of distal radial, in use, intramedullary needle is inserted in pulp cavity, then in healthy long bone cortex, the pinning lead to the hole site place of corresponding intramedullary needle stamps corresponding through hole, makes the pinning can, distal lockhole near through long bone cortex and intramedullary needle, reaches the effect of locking.Use this intramedullary needle, need pinnings near, far-end two ends to be connected and fixed, after intramedullary needle being placed in pulp cavity during installation, hole again, cannot be well in long bone cortex is near, far-end is found corresponding intramedullary needle pinning through hole accurately position, can cause like this pinning to be difficult to through long bone cortex and lockhole, in healthy long bone cortex place boring, also to patient, new wound and pain have been brought simultaneously; In addition, because the position between pinning through hole is determined, and pinning through hole is radial arrangement, in pinning process is installed, can not produce axially relative extruding force, fracture two ends are difficult to reach the object of fluid-tight engagement, when pinning is realized through pinning through hole after intramedullary needle locking, because non-the combining closely at fracture two ends makes healing delay or the disunion of fracture end, postoperatively when serious also need to take out one end pinning to reach the object of union of fracture.
In order to solve the problems of the technologies described above, also there is a kind of intramedullary needle, as applied on May 30th, 2000, April 11 calendar year 2001, the Chinese invention patent description CN2426343Y of bulletin disclosed a kind of self-locking pressure intramedullary pin outside cortex that arrives in marrow.This intramedullary needle comprises marrow inner needle and Inner locking needle, and marrow inner needle is placed in the pulp cavity of long bone, then Inner locking needle is penetrated to marrow inner needle and make the most advanced and sophisticated position of Inner locking needle pass corresponding internal lock pin hole along Inner locking needle bore deformation and be fixed on long bone.In the long bone process of fixing fracture, one end of marrow inner needle acts on the long bone that is positioned at fracture one end, when utilizing Inner locking needle fixed length cannon born, Inner locking needle tip has active force forward to being positioned at the long bone of the fracture other end, like this, and for long bone, easily at fracture, form opposite effect power, fracture two ends are difficult to reach the object of fluid-tight engagement, make the healing of fracture limited, and recovery time is long.
Summary of the invention
The object of this invention is to provide a kind of simple installation, can make the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement.
In order to solve the problems of the technologies described above, the present invention can make the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement comprise intramedullary pin body, and the near-end of intramedullary pin body is provided with the anti-projection of revolving; The movable core body that is provided with in intramedullary pin body, the cross section of core body is non-circular, is positioned at intramedullary pin body and is hinged with Inner locking needle on core body, and intramedullary pin body is provided with the inclined hole passing for Inner locking needle, and inclined hole is inclined upwardly from inside to outside; In one end of intramedullary pin body, be provided with the axial drive means that allows core body axially-movable being connected with core body.
While installing and using, by anti-, revolve projection intramedullary pin and fracture near-end are fixed, the core body of realizing in intramedullary pin body by axial drive means again moves to intramedullary pin body proximal direction, it is interior fixing that the inclined hole that makes Inner locking needle pass intramedullary pin body enters into the medullary cavity of the fracture other end, at fracture two ends, form two active forces in opposite directions, fracture end is played to the effect of pressurization, thereby fracture two ends can be engaged closely.When intramedullary pin takes out, inverted sequence operation, utilizes driving device that Inner locking needle is regained in intramedullary pin body, by external force, intramedullary pin is taken out.
As a further improvement on the present invention, axial drive means can be screw drive part, screw drive part comprises inner screw sheath and is connected to the blocking part of inner screw sheath upper end, near-end at core body is provided with external screw thread, inner screw sheath is meshed with the male thread portion of core body, and keep out on the upper surface of intramedullary pin body blocking part; Adopt the axial drive means of this structure can be so that the movement of operation core body is convenient, blocking part can engage fracture two ends to the effect of intramedullary pin body more closely simultaneously.
As a further improvement on the present invention, Inner locking needle can be arranged on respectively left side, right side and the rear side of core body distal portion, adopt Inner locking needle is installed in this way, the anti-fixed effect that revolves that can make intramedullary pin play, the Inner locking needle that is simultaneously arranged on rear side is in order to prevent when intramedullary pin is placed to joint part fracture, because the activity of joint part causes internal lock acupuncture to have the generation of the accident of skin.
As a further improvement on the present invention, Inner locking needle installation site can axially equidistantly be dislocatedly distributed along core body, the anti-pressurization fixed effect that revolves that can make intramedullary pin play.
As a further improvement on the present invention, prevent revolving left side, right side and the front side that projection can be arranged on intramedullary pin body close end outer rim, can play like this and better prevent being rotated with fixed effect and by being arranged on the anti-projection of revolving of front side, can when intramedullary pin is installed, be convenient to observe.
As a further improvement on the present invention, on the upper surface of blocking part, can be provided with interior hexagonal blind hole, like this can be convenient remove to rotate inner screw sheath.
As a further improvement on the present invention, Inner locking needle can be circular arc type, and upward, inclined hole is circular arc type to bending direction simultaneously, like this when core body moves, Inner locking needle produces larger along the power of intramedullary pin axial direction, can make fracture two ends be bonded together more closely, and the inclined hole of nail cover is circular arc type simultaneously, when Inner locking needle passes this circular arc inclined hole, Inner locking needle and inclined hole are fitted more, have reduced rocking of core body, play the better anti-fixed effect that revolves.
As a further improvement on the present invention, can between core body and Inner locking needle, be provided with torsion spring, when core body moves, Inner locking needle can pass inclined hole more smoothly like this.
As a further improvement on the present invention, anti-to revolve projection can be wedge shape, and its bevel direction is towards nail cover lower end, and what adopt this structure anti-ly revolves the sclerotin that enters into that projection can be convenient, plays anti-effect of revolving.
As a further improvement on the present invention, anti-revolving in projection can be provided with through hole; The near-end inwall of intramedullary pin body is provided with female thread, and female thread is used for installing threaded rod, by external force action on threaded rod, intramedullary pin body is squeezed into intramedullary cavity and taking-up, adopts this structure conveniently intramedullary pin body to be squeezed into intramedullary cavity and taking-up.
In sum, advantage of the present invention is simple installation and can makes fracture two ends fluid-tight engagement to reach the object that shortens rehabilitation duration.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and with the specific embodiment, the present invention is further detailed explanation.
Fig. 1 is the structural representation that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
Fig. 2 is the structural representation that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
Fig. 3 is the decomposing schematic representation that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
Fig. 4 is the cutaway view that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
Fig. 5 is the second structural representation that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
Fig. 6 is the second structural representation that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
Fig. 7 is the third structural representation that makes the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement of the present invention.
The specific embodiment
By described in Fig. 1 to Fig. 4, the present invention can make the self-locking compress intramedullary nail of fracture two ends fluid-tight engagement comprise intramedullary pin body 1, the upper end of intramedullary pin body 1 is provided with the anti-projection 2 of revolving, prevent revolving left side, right side and the front side that projection 2 is arranged on intramedullary pin body 1 close end outer rim, the anti-projection 2 of revolving is for wedge shape, its bevel direction is towards intramedullary pin body 1 lower end, and the anti-projection 2 of revolving is provided with through hole 3; In intramedullary pin body 1, be provided with core body 4, the cross section of core body 4 is non-circular, on core body 4, be positioned at intramedullary pin body 1 and be hinged with Inner locking needle 5, Inner locking needle 5 is arranged on respectively left side, right side and the rear side of core body 4 distal portion, Inner locking needle 5 installation sites are axially equidistantly dislocatedly distributed along core body 4, intramedullary pin body 1 is provided with the inclined hole 6 passing for Inner locking needle 5, and inclined hole 6 is inclined upwardly from inside to outside; In one end of intramedullary pin body 1, be provided with the screw drive part 7 that allows core body 4 axially-movables being connected with core body 4, screw drive part 7 comprises inner screw sheath 8 and is connected to the blocking part 9 of inner screw sheath 8 upper ends, near-end at core body 4 is provided with external screw thread, inner screw sheath 8 is meshed with the male thread portion of core body 4, keep out on the upper surface of intramedullary pin body 1 blocking part 9, on the upper surface of blocking part 9, be provided with interior hexagonal blind hole 10, the near-end inwall 11 of intramedullary pin body 1 is provided with female thread.
When intramedullary pin is installed and used, the core body 4 that Inner locking needle 5 is housed is first encased in intramedullary pin body 1, then the threaded engagement at upper end inwall 11 places by target apparatus and intramedullary pin body 1, intramedullary pin body 1 is driven in the pulp cavity of long bone fracture end, the anti-projection 2 of revolving is entered in pulp cavity sclerotin, what revolve that projection 2 adopts is that wedge structure and bevel direction are towards intramedullary pin body 1 lower end due to anti-, the anti-like this projection 7 of revolving can easierly enter in pulp cavity sclerotin, and then by inner screw sheath 8 and core body 4 threaded engagement, by die nut and interior hexagonal blind hole 10 mating reactions, to intramedullary pin body 1 lower end direction rotation inner screw sheath 8, because intramedullary pin body 1 outer rim has the anti-projection 2 of revolving in pulp cavity sclerotin, can prevent that intramedullary pin body 1 from rotating when rotation inner screw sheath 8, the cross section due to core body 4 is non-circular simultaneously, the rotation of core body 4 while adopting this structure to prevent from rotating inner screw sheath 8, when inner screw sheath 8, core body 4 is in axial direction moved to intramedullary pin body 1 proximal direction, in moving process, make Inner locking needle 5 enter in pulp cavity sclerotin through after inclined hole 6, Inner locking needle 5 produces and acts on pulp cavity sclerotin to the power of extreme direction on intramedullary pin body 1, simultaneously due to intramedullary pin body 1 lower end direction rotation inner screw sheath 8, make blocking part 9 generations of inner screw sheath 8 act on intramedullary pin body 1 to the power of 1 time extreme direction of intramedullary pin body, because anti-, revolve projection 2 in pulp cavity sclerotin, institute acts on pulp cavity sclerotin to the power of 1 time extreme direction of intramedullary pin body in case revolve projection 2 generations, when rotation inner screw sheath 8, intramedullary needle produces simultaneously and acts on pulp cavity sclerotin to the power of intramedullary pin body 1 top and bottom direction, fracture end is played to the effect of pressurization, and fracture two ends can be engaged closely like this.In the time will taking out intramedullary needle, can screw out inner screw sheath 8, core body 4 moves back to origin-location to intramedullary pin body 1 lower end, Inner locking needle 5 is also return inclined hole 6 in intramedullary pin body 1, and then with target apparatus and intramedullary pin body 1 upper end, establish female inwall 11 and be connected, and connect the anti-through hole 3 revolving in projection 2, can take out quickly and easily intramedullary pin body 1.
Prevent revolving left side, right side and the front side that projection 2 is arranged on intramedullary pin body 1 outer rim.Can play like this and better prevent being rotated with fixed effect and by being arranged on the anti-projection 2 of revolving of front side, can when intramedullary pin is installed, be convenient to observe.Inner locking needle 5 is arranged on respectively core body 4 left sides, right side and rear side, adopt Inner locking needle 5 is installed in this way, the anti-fixed effect that revolves that can make intramedullary pin play, the Inner locking needle 5 that is simultaneously arranged on rear side is in order to prevent when intramedullary pin is placed to joint part fracture, because the activity of joint part causes Inner locking needle 5 to sting out the generation of the accident of skin.
Intramedullary pin body 1 upper end that the application records is as shown in Figure 4 the upper position shown in figure.
By shown in Fig. 5 to Fig. 6, Inner locking needle 5 can be circular arc type, and upward, inclined hole 6 is circular arc type to bending direction simultaneously, like this when core body 4 moves, Inner locking needle 5 produces larger along the power of intramedullary pin body 1 axial direction, can make like this fracture two ends be bonded together more closely, and the inclined hole 6 of intramedullary pin body 1 is circular arc type simultaneously, when Inner locking needle 5 is through this circular arc inclined hole 6 like this, Inner locking needle 5 is fitted more with inclined hole 6, has reduced rocking of core body 4, plays the better anti-fixed effect that revolves.
As shown in Figure 7, Inner locking needle 5 can be circular arc type, and upward, inclined hole 6 is circular arc type to bending direction simultaneously, like this when core body 4 moves, Inner locking needle 5 more easily passes and returns inclined hole 6, is conducive to the taking-up of intramedullary pin, and the inclined hole 6 of intramedullary pin body 1 is circular arc type simultaneously, when Inner locking needle 5 is through this circular arc inclined hole 6 like this, Inner locking needle 5 is fitted more with inclined hole 6, has reduced rocking of core body 4, plays the better anti-fixed effect that revolves.
As the further improvement of this intramedullary pin, can between core body 4 and Inner locking needle 5, be provided with torsion spring, when core body 4 moves, Inner locking needle 5 can pass inclined hole 6 more smoothly like this.
Claims (10)
1. the self-locking compress intramedullary nail that can make fracture two ends fluid-tight engagement, comprises intramedullary pin body; It is characterized in that: the near-end of intramedullary pin body is provided with the anti-projection of revolving; The movable core body that is provided with in intramedullary pin body, the cross section of core body is non-circular, is positioned at intramedullary pin body and is hinged with Inner locking needle on core body, and intramedullary pin body is provided with the inclined hole passing for Inner locking needle, and inclined hole is inclined upwardly from inside to outside; In one end of intramedullary pin body, be provided with the axial drive means that allows core body axially-movable being connected with core body.
2. by the self-locking compress intramedullary nail that makes fracture two ends fluid-tight engagement claimed in claim 1, it is characterized in that: described axial drive means is screw drive part, described screw drive part comprises inner screw sheath and is connected to the blocking part of inner screw sheath upper end, near-end at core body is provided with external screw thread, inner screw sheath is meshed with the male thread portion of core body, and keep out on the upper surface of intramedullary pin body blocking part.
3. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 1, it is characterized in that: described Inner locking needle is arranged on respectively left side, right side and the rear side of core body distal portion.
4. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 3, it is characterized in that: described Inner locking needle installation site is axially equidistantly dislocatedly distributed along core body.
5. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 1, it is characterized in that: described anti-left side, right side and the front side that projection is arranged on intramedullary pin body close end outer rim of revolving.
6. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 2, it is characterized in that: on the upper surface of blocking part, be provided with interior hexagonal blind hole.
7. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 1, it is characterized in that: described Inner locking needle is circular arc type, upward, described inclined hole is circular arc type to bending direction.
8. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 1, it is characterized in that: between core body and Inner locking needle, be provided with torsion spring.
9. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 1, it is characterized in that: the described anti-projection of revolving is for wedge shape, and its bevel direction is towards intramedullary pin body lower end.
10. by the fracture two ends fluid-tight engagement self-locking compress intramedullary nail that makes claimed in claim 1, it is characterized in that: describedly anti-revolve projection and be provided with through hole; The near-end inwall of intramedullary pin body is provided with female thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357935.5A CN104083199B (en) | 2014-07-25 | 2014-07-25 | A kind of self-locking compress intramedullary nail for making fracture two ends fluid-tight engagement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357935.5A CN104083199B (en) | 2014-07-25 | 2014-07-25 | A kind of self-locking compress intramedullary nail for making fracture two ends fluid-tight engagement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104083199A true CN104083199A (en) | 2014-10-08 |
| CN104083199B CN104083199B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410357935.5A Active CN104083199B (en) | 2014-07-25 | 2014-07-25 | A kind of self-locking compress intramedullary nail for making fracture two ends fluid-tight engagement |
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| CN (1) | CN104083199B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367374A (en) * | 2014-11-13 | 2015-02-25 | 胡明军 | Self-drilling intramedullary nail |
| CN107280748A (en) * | 2017-07-27 | 2017-10-24 | 焦作市新港医疗设备有限公司 | A kind of femoral interlocking nail and the femur using the femoral interlocking nail |
| CN108013923A (en) * | 2017-12-01 | 2018-05-11 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | A kind of anchors strengthens bone screws |
| CN110934631A (en) * | 2019-11-14 | 2020-03-31 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Metacarpal-phalangeal intramedullary needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404441A1 (en) * | 1968-12-11 | 1975-07-31 | Gerhard Dawidowski | Compression nail for bone fractures - has claw parts facing each other near ends and movable through openings |
| US5759184A (en) * | 1993-07-23 | 1998-06-02 | Santangelo; Massimo | Device for preventive support of the femur |
| CN2516116Y (en) * | 2001-07-13 | 2002-10-16 | 张文祥 | Expansion screw type self-locking intramedullary nail |
| US20020161369A1 (en) * | 2001-04-25 | 2002-10-31 | Bramlet Dale G. | Intramedullary nail |
| CN200963180Y (en) * | 2006-06-27 | 2007-10-24 | 蔡钧 | Counterclockwise anchoring open-type self-locking marrow nail |
| CN204092152U (en) * | 2014-07-25 | 2015-01-14 | 杨涛 | A kind of self-locking compress intramedullary nail making fracture two ends fluid-tight engagement |
-
2014
- 2014-07-25 CN CN201410357935.5A patent/CN104083199B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404441A1 (en) * | 1968-12-11 | 1975-07-31 | Gerhard Dawidowski | Compression nail for bone fractures - has claw parts facing each other near ends and movable through openings |
| US5759184A (en) * | 1993-07-23 | 1998-06-02 | Santangelo; Massimo | Device for preventive support of the femur |
| US20020161369A1 (en) * | 2001-04-25 | 2002-10-31 | Bramlet Dale G. | Intramedullary nail |
| CN2516116Y (en) * | 2001-07-13 | 2002-10-16 | 张文祥 | Expansion screw type self-locking intramedullary nail |
| CN200963180Y (en) * | 2006-06-27 | 2007-10-24 | 蔡钧 | Counterclockwise anchoring open-type self-locking marrow nail |
| CN204092152U (en) * | 2014-07-25 | 2015-01-14 | 杨涛 | A kind of self-locking compress intramedullary nail making fracture two ends fluid-tight engagement |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367374A (en) * | 2014-11-13 | 2015-02-25 | 胡明军 | Self-drilling intramedullary nail |
| CN104367374B (en) * | 2014-11-13 | 2016-03-30 | 胡明军 | A kind of self-drilling type intramedullary pin |
| CN107280748A (en) * | 2017-07-27 | 2017-10-24 | 焦作市新港医疗设备有限公司 | A kind of femoral interlocking nail and the femur using the femoral interlocking nail |
| CN108013923A (en) * | 2017-12-01 | 2018-05-11 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | A kind of anchors strengthens bone screws |
| CN110934631A (en) * | 2019-11-14 | 2020-03-31 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Metacarpal-phalangeal intramedullary needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104083199B (en) | 2017-03-29 |
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