CN103284726B - Full-tunnel analog scale for cruciate ligaments reconstruction - Google Patents
Full-tunnel analog scale for cruciate ligaments reconstruction Download PDFInfo
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- CN103284726B CN103284726B CN201310268604.XA CN201310268604A CN103284726B CN 103284726 B CN103284726 B CN 103284726B CN 201310268604 A CN201310268604 A CN 201310268604A CN 103284726 B CN103284726 B CN 103284726B
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Abstract
The invention discloses a full-tunnel analog scale for cruciate ligaments reconstruction. One end of a memory alloy wire is movably connected with a miniature steel plate, the other end of the memory alloy wire is fixedly connected with a tension holder, scales are arranged on the memory steel wire, and traction lines are arranged at two ends of the miniature steel plate. The full-tunnel analog scale for cruciate ligaments reconstruction can perform accurate measurement under full-tunnel tension of a bone tunnel under the circumference that tension is maintained, meanwhile, can measure the length of ligaments in the thighbone, the tibia tunnel and the knee cavity, enables operations to be accurate, shortens operation time, can achieve the aim of acting according to actual circumferences and saves raw materials.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of full tunnel survey utensil of Cruciate ligament reconstruction.
Background technology
Ligamentaum cruciatum maintains the stable important feature of knee joint, occurs instability of knee, accelerate articular cartilage and meniscal regression, increase the occurrence probability of other structural damages of joint after damage.Along with the development of arthroscopic techniques, adopt under transplanting tendon arthroscope and rebuild the Main Means that ligamentaum cruciatum has become treatment cruciate ligament.But, along with the continuous increase of patient, postoperatively occur that the case of the inefficacy of ligament is also increasing gradually.Bibliographical information, the mortality of Healing in Anterior Cruciate Ligament Reconstruction is between 3.6% and 15%.Cause the many factors that Healing in Anterior Cruciate Ligament Reconstruction lost efficacy, wherein the healing of graft in osseous tunnel is one of successful key factor.Current research display, the size of length in tunnel of the mobility of graft in osseous tunnel (rain brush effect and bungee jumping effect) and graft and osseous tunnel and be one of key factor affecting tendon-bone healing with the matching degree of tendon.Scholars find, when adopting button plate to carry out Suspending fixation to graft, the line that in osseous tunnel, suspention is used is longer, transplant tendon shorter, the tension force then transplanted suffered by tendon is higher, and " bungee jumping effect " is larger, therefore the length that suggestion reduces osseous tunnel messenger wire reduces " bungee jumping effect ".
Present clinical to Reconstruct anterior cruciate ligament by arthroscopy osseous tunnel size particularly the foundation of length be all undertaken by the segmented property of hard chi (femur and tibial tunnel), the length that articular cavity internal ligament needs then only by enuflex position femur and tibia footmark place carry out arthroscope under measure.May be able to measure relatively accurately to tibial tunnel femoral bone tunnel although segmented, in articular cavity in knee joint the length of tendon then only by enuflex position femur and tibia footmark place carry out arthroscope under measure add knee joint fork ligament injury posterior joint alignment do not mate the degree of accuracy that all may have influence on measurement, and then have influence on not mating of graft and tunnel length.Tendon-bone healing may be affected because of " bungee jumping effect " on the one hand, waste tendon graft on the other hand.
Summary of the invention
Depth measurement simulation chi in the full tunnel that the present invention aims to provide a kind of Cruciate ligament reconstruction, Measurement accuracy is carried out under the full tunnel tension force that can carry out osseous tunnel when maintaining tension force, the length of femur, tibial tunnel and knee joint cavity internal ligament can also be measured simultaneously, reach the object of cutting the garment according to the figure, be conducive to alleviating because of " bungee jumping effect " impact on tendon-bone healing, promote tendon-bone healing, improve the utilization rate of tendon graft.
For achieving the above object, the present invention realizes by the following technical solutions:
Depth measurement simulation chi in the full tunnel of Cruciate ligament reconstruction disclosed by the invention, it is characterized in that: one end of memory alloy wire is flexibly connected with miniature steel plate, its other end is fixedly connected with pulling force shadoof, described memory alloy wire is provided with scale, the two ends of described miniature steel plate are provided with draught line, draw when being convenient for measuring in osseous tunnel.
Preferably, described memory alloy wire is memory steel wire.
Preferably, described miniature steel plate is endbutton steel plate.
Preferably, described memory alloy wire is chain connection with being flexibly connected between miniature steel plate.
Preferably, the precision of described scale is 1mm.
Preferably, the diameter of described memory alloy wire is 3mm.
Depth measurement simulation chi in the full tunnel of Cruciate ligament reconstruction disclosed by the invention, Measurement accuracy is carried out under the full tunnel tension force that can carry out osseous tunnel when maintaining tension force, the length of femur, tibial tunnel and knee joint cavity internal ligament can also be measured simultaneously, reach the object of cutting the garment according to the figure, maximized reduction " bungee jumping effect ", be conducive to tendon-bone healing, improve the utilization rate of tendon graft; Reduce the misery of sufferer, save material, there is good Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-miniature steel plate, 2-memory alloy wire, 3-scale, 4-pulling force shadoof, 5-draught line.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, depth measurement simulation chi in the full tunnel of Healing in Anterior Cruciate Ligament Reconstruction disclosed by the invention, one end of memory alloy wire 2 is flexibly connected with miniature steel plate 1, and its other end is fixedly connected with pulling force shadoof 4, memory alloy wire 2 is provided with scale 3, and the two ends of miniature steel plate 1 are provided with draught line 5.
Preferably, memory alloy wire 2 is memory steel wire.
Preferably, miniature steel plate is endbutton steel plate.
Preferably, being flexibly connected between memory alloy wire 2 with miniature steel plate 1 is chain connection.
Preferably, the precision of scale 3 is 1mm.
Preferably, the diameter of memory alloy wire 2 is 3mm.
Operation of the present invention is as follows: under the pulling of draught line 5, miniature steel plate 1 wing drop is parallel with memory alloy wire 2, miniature steel plate 1 and memory alloy wire 2 are drawn out to femoral bone tunnel collar extension by tibial tunnel from femoral bone tunnel collar extension side by draught line 5 from tibial tunnel, then make miniature steel plate 1 reset to the position vertical with memory alloy wire 2 and fix, reset knee joint again, and lift the pulling force shadoof 4 be positioned at outside ligament tibia end, on the memory alloy wire 2 of with a scale 3, femoral bone tunnel is read successively when maintaining tension force, ligament precise length separately in tibial tunnel and articular cavity, one end of miniature steel plate 1 is gently drawn after linear measure longimetry, make the direction that miniature steel plate 1 becomes parallel with osseous tunnel, memory alloy wire 2 and miniature steel plate 1 is exited again along osseous tunnel from tibial tunnel collar extension.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (3)
1. depth measurement simulation chi in the full tunnel of a Cruciate ligament reconstruction, it is characterized in that: one end of memory alloy wire (2) is flexibly connected with miniature steel plate (1), its other end is fixedly connected with pulling force shadoof (4), described memory alloy wire (2) is provided with scale (3), the two ends of described miniature steel plate (1) are provided with draught line (5), described miniature steel plate (1) is endbutton steel plate, being flexibly connected between described memory alloy wire (2) with miniature steel plate (1) is chain connection, described memory alloy wire (2) is memory steel wire.
2. in the full tunnel of Cruciate ligament reconstruction according to claim 1, depth measurement simulation chi, is characterized in that: the precision of described scale (3) is 1mm.
3. in the full tunnel of Cruciate ligament reconstruction according to claim 1, depth measurement simulation chi, is characterized in that: the diameter of described memory alloy wire (2) is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268604.XA CN103284726B (en) | 2013-06-28 | 2013-06-28 | Full-tunnel analog scale for cruciate ligaments reconstruction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310268604.XA CN103284726B (en) | 2013-06-28 | 2013-06-28 | Full-tunnel analog scale for cruciate ligaments reconstruction |
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| CN103284726A CN103284726A (en) | 2013-09-11 |
| CN103284726B true CN103284726B (en) | 2015-01-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106618750B (en) * | 2016-10-21 | 2023-06-27 | 上海利格泰生物科技股份有限公司 | Mold testing tool and method for measuring equal length points of anterior cruciate ligaments |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5306301A (en) * | 1993-02-11 | 1994-04-26 | American Cyanamid Company | Graft attachment device and method of using same |
| CN2282860Y (en) * | 1996-09-25 | 1998-06-03 | 王予彬 | Closed miniature steel plate for syndesmopexy surgical instrument |
| US7520898B2 (en) * | 2001-10-01 | 2009-04-21 | Scandius Biomedical, Inc. | Apparatus and method for reconstructing a ligament |
| CN102791219B (en) * | 2010-03-18 | 2015-04-01 | 史密夫和内修有限公司 | A device for use during ligament reconstruction surgery |
| US8870891B2 (en) * | 2011-06-24 | 2014-10-28 | Depuy Mitek, Llc | ACL reconstruction tunnel gauge and method |
| CN203303058U (en) * | 2013-06-28 | 2013-11-27 | 四川大学华西医院 | Whole tunnel simulation measuring scale for cruciate ligament reconstruction |
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