CN102599970B - Backbone internal fixing system - Google Patents
Backbone internal fixing system Download PDFInfo
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- CN102599970B CN102599970B CN201210094674.3A CN201210094674A CN102599970B CN 102599970 B CN102599970 B CN 102599970B CN 201210094674 A CN201210094674 A CN 201210094674A CN 102599970 B CN102599970 B CN 102599970B
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- internal fixation
- hole
- fixation plate
- marrow
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Abstract
The invention relates to a medical appliance, in particular to an orthopedic backbone internal fixing system, which comprises an internal fixing device, an implanting and taking-out device (4) and a surgical fixing device (5). The internal fixing device comprises a first intramedullary fixing plate (1), a second intramedullary fixing plate (2) and an embedded elliptical cylinder (3); the first intramedullary fixing plate (1) is provided with a first bump (11); the second intramedullary fixing plate (2) is provided with a second bump (21); and one end of the embedded elliptical cylinder (3) is provided with a third through hole (31), the other end of the embedded elliptical cylinder (3) is conical, and the conical top end of the embedded elliptical cylinder (3) has a certain radian. According to the technical scheme, the backbone internal fixing system is easy to be implanted, is fixed well relatively, and is few in incision and trauma, free of stress shielding, easy in operation and low in surgical risk, a dilating angle is easy to be adjusted, and after the backbone internal fixing system is implanted, fracture reduction is good.
Description
Technical field
The present invention relates to medical apparatus and instruments, relate in particular to the key internal fixation system of a kind of orthopaedics.
Background technology
In shaft fracture, fix main point two kinds, intramedullary pin and steel plate internal fixation system.The latter's peeling operation scope is wide, damage is large, and can produce the biomechanics defects such as stress shielding and stress concentration after fixing, is used for being not suitable for the classification of fracture that uses intramedullary pin fixing.Intramedullary pin internal fixation system has many types, conventional there are cloverleaf nail, Ender nail, Rush nail, rectangular slab intramedullary pin, twist lock intramedullary nail etc., strand lock intramedullary nail is the kind that current main flow is used, other due to the seldom application or progressively eliminate of various defects, but strand lock intramedullary nail also has self defect: the one, need multiple little otch, the 2nd, pinning is locked difficulty, the 3rd, also has stress concentration and stress shielding problem.Key internal fixation system of the present invention is comprised of upper and lower two marrow internal fixation plates and middle embedding post, embeds post upper and lower two marrow internal fixation plates are strutted in operation process, and so easy implantation, fixes relatively, and after plate implantation, the reset of fracture well.
Summary of the invention
The present invention is directed to deficiency of the prior art, provide that a kind of otch is few, wound is little, easily operation, easily regulate the key internal fixation system of expansion angle.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals.
A kind of key internal fixation system, comprises inner fixing device, implantation and withdrawing device and operation fixing device, and inner fixing device comprises the first marrow internal fixation plate, the second marrow internal fixation plate and embedded cylindroid;
One end of the first marrow internal fixation plate is provided with the first through hole, apart from other end 30-50mm place, is provided with the first projection;
One end of the second marrow internal fixation plate is provided with the second through hole, apart from other end 30-50mm place, is provided with the second projection;
Embedded cylindroid one end is provided with third through-hole, and the other end is tapered, and tapered tip has certain radian.Make key far-end separately by the first projection and the second projection.
As preferably, the first marrow internal fixation plate is the arc that a block length 26-40cm, wide 6-8mm, thickness are 2mm, away from one end of the first through hole, has radian; The second marrow internal fixation plate is the arc that a block length 26-40cm, wide 6-8mm, thickness are 2mm, away from one end of the second through hole, has radian.The radian on top, makes the convenient insertion of the first marrow internal fixation plate, the second marrow internal fixation plate and embedded cylindroid.
As preferably, embedded cylindroid is that a height is that 26-40cm, cross section are oval column, and oval major axis is that 4-7mm, minor axis are 2-5mm.
As preferably, the height of the first projection is 3mm, and the height of the second projection is 3mm.
As preferably, to implant and withdrawing device comprises connecting axle, joint pin and handle, joint pin upper end is fixedly connected with connecting axle, and lower end is connected with hands handle; Connecting axle is positioned at joint pin one side, and taper knob is in joint pin lower end.
As preferably, connecting axle is large away from one end of joint pin width middle than connecting axle.Narrow connecting axle between the alleviating distention in middle-JIAO of two ends, makes to make implanting the first marrow internal fixation plate and the second marrow internal fixation plate, can arbitrarily not slide.
As preferably, operation fixing device comprises fixed axis, fixture and circular hole, and fixture has two, and two fixtures are fixedly connected with, and interconnective part is provided with circular hole.
As preferably, on fixture, be fixed with fixed axis, fixed axis is large away from one end of fixture width middle than fixed axis.
Key internal fixation system titanium alloy material is made, and it has, and density is low, very much not easy fracture, stronger corrosion resistance and the feature of toughness of mechanical strength, and along with the ratio difference of titanium in alloy, its alloy property can be distinguished again to some extent, is convenient to regulation and control.
The present invention is comprised of upper and lower two marrow internal fixation plates and middle embedding post, in operation process, embedding post struts upper and lower two marrow internal fixation plates, easily implant, relatively fix, otch is few, wound is little, non-stress shielding, easily operation, operation risk are little, easily regulate expansion angle, after such plate is implanted, the reset of fracture well.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first marrow internal fixation plate;
Fig. 2 is the rearview of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is that in Fig. 1, figure cuts open in the office of A;
Fig. 5 is the structural representation of the second marrow internal fixation plate;
Fig. 6 is the rearview of Fig. 5;
Fig. 7 is the right view of Fig. 5;
Fig. 8 is that in Fig. 5, figure cuts open in the office of A;
Fig. 9 is embedded cylindroid structural representation;
Figure 10 is the right view of Fig. 9;
Figure 11 is the structural representation of implantation and withdrawing device;
Figure 12 is the structural representation of operation fixing device;
Figure 13 is embedded cylindroid implantation schematic diagram;
Figure 14 is the key internal fixation system schematic diagram of fracture of shaft of tibia;
Figure 15 is the key internal fixation system schematic diagram of fracture of shaft of femur;
Figure 16 is the key internal fixation system schematic diagram of humeral shaft fracture.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail.
A kind of key internal fixation system, comprises inner fixing device, implantation and withdrawing device 4 and operation fixing device 5.Inner fixing device comprises the first marrow internal fixation plate 1, the second marrow internal fixation plate 2 and embedded cylindroid 3.
As Fig. 1-4, the first marrow internal fixation plate 1 is the arc that a block length 26-40cm, wide 6-8mm, thickness are 2mm, the width of the first marrow internal fixation plate 1 is arc, the two ends of the first marrow internal fixation plate 1 are respectively near-end and far-end, near-end is provided with the first through hole 12, the first through hole 12 is circular port, and far-end has certain radian, not only facilitates insertion but also be unlikely to injure human body; Apart from far-end 30-50mm place, be provided with the first projection 11 of a ramped shaped, the first projection 11 is positioned at curved inner radius one side, the first projection 11 is ramped shaped, there is a peak, the vertical dimension of peak and the first marrow internal fixation plate 1 is 3mm, vertical dimension along from peak to both sides is gradually little, until overlap with the point on the first marrow internal fixation plate 1.
As Fig. 5-8, the second marrow internal fixation plate 2 is identical with the first marrow internal fixation plate 1 structure size, and the near-end of the second marrow internal fixation plate 2 and far-end are respectively equipped with the second through hole 22 and the second projection 21.
As Fig. 9-10, embedded cylindroid 3 is that a solid is lived, and its cross section is oval, and transverse is that 4-7mm, minor axis are 2-5mm, and the height of embedded cylindroid 3 is 26-40cm.Embedded cylindroid 3 is also provided with near-end and far-end, and near-end is provided with third through-hole 31, and third through-hole 31 is a circular port; Far-end is tapered, and tapered tip has certain radian.
The first through hole 12, the second through hole 22 are identical with third through-hole 31 size structures.
As Figure 11, implantation and withdrawing device 4, for implanting and taking out the first marrow internal fixation plate 1, the second marrow internal fixation plate 2 and embedded cylindroid 3, comprise joint pin 42, handle 43 and connecting axle 41.Connecting axle 41 is positioned at the right side of joint pin 42 upper ends, connecting axle 41 free ends are identical with the aperture of the first through hole 12 away from one end width of joint pin 42, connecting axle 41 two ends symmetries, and middle width is less than the width at two ends, become inner concave shape, insert the first through hole 12 and can prevent slippage.The lower end connecting handle 43 of joint pin 42, joint pin 42 runs through handle 43, and lower end protrudes from handle 43, is provided with the part of inner concave shape in the middle of the handle 43 in joint pin 42 left sides, easy to use; The length of the handle 43 on right side is less than the length of the handle 43 in left side, and joint pin 42 right side handle 43 upper ends are for taking out beating point, and joint pin 42 lower ends are for implanting beating point.
When implantation and withdrawing device 4 are implanted the first marrow internal fixation plate 1, first connecting axle 41 is inserted to the first through hole 12, implanting beating point firmly, just implantable; When implantation and withdrawing device 4 take out the first marrow internal fixation plate 1, first connecting axle 41 is inserted to the first through hole 12, taking out beating point firmly, utilize handle 43 to be extracted simultaneously.The implantation of the second marrow internal fixation plate 2, embedded cylindroid 3 is taken out identical with the first marrow internal fixation plate 1.
As Figure 12, operation fixing device 5 comprises fixture 52, fixed axis 51 and circular hole 53.Fixture 52 has two, and two fixtures 52 are fixedly connected with, and interconnective part is provided with circular hole 53, and embedded cylindroid 3 can insert from circular hole 53.On fixture 52, be fixed with fixed axis 51, fixed axis 51 is identical with connecting axle 41 structure size of implantation and withdrawing device 4.
As Figure 13, operation fixing device 5, for fixing the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2, facilitates embedded cylindroid 3 to insert; The first through hole 12 and the second through hole 22 are arranged on respectively on two fixed axis 51, under the support of operation fixing device 5, fix the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2, and embedded cylindroid 3 is inserted from circular hole 53.Like this, make the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 be introduced into key far-end, can prevent that embedded cylindroid 3 is not yet through the first projection 11 and the second projection 21, just three enters key far-end together, does not reach far-end and separates fixing object.
As Figure 13,14, the key internal fixation system of fracture of shaft of tibia.
Implantation process: in proximal ends of tibia inner side, make the vertical subcutaneous straight cut of shape of an about 5cm, expose proximal ends of tibia, and sidetracking one bone hole reaming therein; Use implantation and withdrawing device 4 that the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 are implanted in hole, along pulp cavity, enter (by the reduction of the fracture) and enter key far-end through fracture line, the two is encircled in pulp cavity and form a hollow ellipse post; With operation fixing device 5, fix the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 again, use implantation and withdrawing device 4 that embedded cylindroid 3 is inserted to the hollow ellipse post of encircling from circular hole 53, to the first projection 11 and the second projection 21 places, by the far-end of the far-end of the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 separately, be " herringbone ", embedded cylindroid 3 enters key far-end, three's near-end is stayed a burst ectosteal Different Plane, and the first through hole 12, the second through hole 22 and third through-hole 31 are stayed outside backbone.
Taking-up process: the third through-hole 31 that the connecting axle 41 of implantation and withdrawing device 4 is inserted in to embedded cylindroid 3, utilize handle 43 and taking-up beating point to be extracted, again the connecting axle 41 of implantation and withdrawing device 4 is inserted in respectively to the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2, it is successively extracted.
As Figure 13,15, the key internal fixation system of fracture of shaft of femur.
Implantation process: make an about 6cm otch in buttocks greater trochanter of femur back upper place, appear greater trochanter, in bone bradawl one aperture reaming for recess, from sidetracking one bone hole reaming in proximal femur; Use implantation and withdrawing device 4 that the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 are implanted in hole, along pulp cavity, enter (by the reduction of the fracture) and enter key far-end through fracture line, the two is encircled in pulp cavity and form a hollow ellipse post; With operation fixing device 5, fix the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 again, use implantation and withdrawing device 4 that embedded cylindroid 3 is inserted to the hollow ellipse post of encircling from circular hole 53, to the first projection 11 and the second projection 21 places, by the far-end of the far-end of the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 separately, be " herringbone ", embedded cylindroid 3 enters key far-end, three's near-end is stayed the recessed outer 1-2cm of greater trochanter, and the first through hole 12, the second through hole 22 and third through-hole 31 are stayed outside backbone.
Taking-up process: the third through-hole 31 that the connecting axle 41 of implantation and withdrawing device 4 is inserted in to embedded cylindroid 3, utilize handle 43 and taking-up beating point to be extracted, again the connecting axle 41 of implantation and withdrawing device 4 is inserted in respectively to the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2, it is successively extracted.
embodiment 4
As Figure 13,16, the key internal fixation system of humeral shaft fracture.
Implantation process: make a short otch in acromion outside, appear separation triangular muscle, expose greater tubercle, in sidetracking one bone hole reaming thereafter; Use implantation and withdrawing device 4 that the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 are implanted in hole, along pulp cavity, enter (by the reduction of the fracture) and enter key far-end through fracture line, the two is encircled in pulp cavity and form a hollow ellipse post; With operation fixing device 5, fix the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 again, use implantation and withdrawing device 4 that embedded cylindroid 3 is inserted to the hollow ellipse post of encircling from circular hole 53, to the first projection 11 and the second projection 21 places, by the far-end of the far-end of the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2 separately, be " herringbone ", embedded cylindroid 3 enters key far-end, three's near-end is stayed the outer 0.5-1cm of bone, and the first through hole 12, the second through hole 22 and third through-hole 31 are stayed outside backbone.
Taking-up process: the third through-hole 31 that the connecting axle 41 of implantation and withdrawing device 4 is inserted in to embedded cylindroid 3, utilize handle 43 and taking-up beating point to be extracted, again the connecting axle 41 of implantation and withdrawing device 4 is inserted in respectively to the first marrow internal fixation plate 1 and the second marrow internal fixation plate 2, it is successively extracted.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (8)
1. a key internal fixation system, comprise inner fixing device, implantation and withdrawing device (4) and operation fixing device (5), it is characterized in that: inner fixing device comprises the first marrow internal fixation plate (1), the second marrow internal fixation plate (2) and embedded cylindroid (3);
One end of the first marrow internal fixation plate (1) is provided with the first through hole (12), apart from other end 30-50mm place, is provided with the first projection (11);
One end of the second marrow internal fixation plate (2) is provided with the second through hole (22), apart from other end 30-50mm place, is provided with the second projection (21);
One end of embedded cylindroid (3) is provided with third through-hole (31), and the other end is tapered, and tapered tip has certain radian.
2. the key internal fixation system of one according to claim 1, is characterized in that: the first marrow internal fixation plate (1) is the arc that a block length 26-40cm, wide 6-8mm, thickness are 2mm, away from one end of the first through hole (12), has radian; The second marrow internal fixation plate (2) is the arc that a block length 26-40cm, wide 6-8mm, thickness are 2mm, away from one end of the second through hole (22), has radian.
3. the key internal fixation system of one according to claim 1, is characterized in that: embedded cylindroid (3) is that a height is that 26-40cm, cross section are oval column, and oval major axis is that 4-7mm, minor axis are 2-5mm.
4. the key internal fixation system of one according to claim 1, is characterized in that: the height of the first projection (11) is 3mm, and the height of the second projection (21) is 3mm.
5. the key internal fixation system of one according to claim 1, it is characterized in that: implantation and withdrawing device (4) comprise connecting axle (41), joint pin (42) and handle (43), joint pin (42) upper end is fixedly connected with connecting axle (41), and lower end is connected with handle (43); Connecting axle (41) is positioned at joint pin (42) one sides, and handle (43) is enclosed within joint pin (42) lower end.
6. the key internal fixation system of one according to claim 5, is characterized in that: connecting axle (41) is large away from one end of joint pin (42) width middle than connecting axle (41).
7. the key internal fixation system of one according to claim 1, it is characterized in that: operation fixing device (5) comprises fixed axis (51), fixture (52) and circular hole (53), fixture (52) has two, two fixtures (52) are fixedly connected with, and interconnective part is provided with described circular hole (53).
8. the key internal fixation system of one according to claim 7, is characterized in that: on fixture (52), be fixed with fixed axis (51), fixed axis (51) is large away from one end of fixture (52) width middle than fixed axis (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094674.3A CN102599970B (en) | 2012-03-31 | 2012-03-31 | Backbone internal fixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210094674.3A CN102599970B (en) | 2012-03-31 | 2012-03-31 | Backbone internal fixing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102599970A CN102599970A (en) | 2012-07-25 |
| CN102599970B true CN102599970B (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210094674.3A Expired - Fee Related CN102599970B (en) | 2012-03-31 | 2012-03-31 | Backbone internal fixing system |
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| CN (1) | CN102599970B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2579887A1 (en) * | 1985-04-05 | 1986-10-10 | France Implant Sarl | |
| US4862883A (en) * | 1988-04-21 | 1989-09-05 | Yosef Freeland | Interlocking intramedullary nail |
| US5116335A (en) * | 1989-09-18 | 1992-05-26 | Hannon Gerard T | Intramedullary hybrid nail and instrumentation for installation and removal |
| CN1061525A (en) * | 1990-11-23 | 1992-06-03 | 湖北省荆州地区人民医院 | Fork-shaped automatic separation formula intramedullary needle and injection-drawing out device thereof |
| ATE263514T1 (en) * | 1999-05-27 | 2004-04-15 | Jonathan Phillips | PEDIATRIC INTRAMEDULLARY INTRAMEDULAR NAIL |
| CN100553576C (en) * | 2001-03-15 | 2009-10-28 | 中国人民解放军北京军区总医院 | Humeral shaft-locking intramedullary needle |
| CN2501464Y (en) * | 2001-10-23 | 2002-07-24 | 兰州西脉记忆合金股份有限公司 | Thigh-bone intramedullary nail made by marmem and its corollary equipment |
| CN2614635Y (en) * | 2003-05-06 | 2004-05-12 | 复旦大学附属上海市第五人民医院 | Forked self-locking intramedullary nail of femur |
| CN201286761Y (en) * | 2008-11-10 | 2009-08-12 | 徐永旭 | Bone-nail removing tongs |
-
2012
- 2012-03-31 CN CN201210094674.3A patent/CN102599970B/en not_active Expired - Fee Related
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|---|---|
| CN102599970A (en) | 2012-07-25 |
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