CN203303135U - Bone tunnel fixing device for rebuilding anterior cruciate ligament - Google Patents
Bone tunnel fixing device for rebuilding anterior cruciate ligament Download PDFInfo
- Publication number
- CN203303135U CN203303135U CN2013203839211U CN201320383921U CN203303135U CN 203303135 U CN203303135 U CN 203303135U CN 2013203839211 U CN2013203839211 U CN 2013203839211U CN 201320383921 U CN201320383921 U CN 201320383921U CN 203303135 U CN203303135 U CN 203303135U
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- inner bolt
- hollow screw
- bone
- spiro rod
- anterior cruciate
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Abstract
The utility model discloses a bone tunnel fixing device for rebuilding anterior cruciate ligament. The bone tunnel fixing device for rebuilding anterior cruciate ligament comprises a thigh bone end inner fixing component and a shin bone end inner fixing component; the thigh bone end inner fixing component comprises a first hollow screw, a first inner screw and a first guide screw rod; the tail end diameter of the first hollow screw is greater than the front end diameter, and the first hollow screw is of a shape consisting of an incomplete inverted conical body and a cylindrical body which are connected; an internal thread of the first hollow screw is adapted to an outer thread on one end of the first inner screw; the other end of the first inner screw is provided with a loop for suspending transplanted ligament; the outer diameter of the first guide screw rod is less than the inner diameter of the first inner screw; the shin bone end inner fixing component is similar to the thigh bone end inner fixing component. The bone tunnel fixing device for rebuilding anterior cruciate ligament provided by the utility model can reduce the longitudinal motion (bungee jumping effect) and horizontal motion (windshield wiper effect) among transplanted muscle tendon bone channels, can reduce the loss of bone quantity, and achieves firm fixing effect; the area of contact between the transplanted muscle tendons and bone channels is large, and the muscle tendon healing is promoted further.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of osseous tunnel holder of Healing in Anterior Cruciate Ligament Reconstruction.
Background technology
Anterior cruciate ligament is to maintain the important feature that knee joint is stable, instability of knee after damage, occurs, accelerates articular cartilage and meniscal regression, increases the occurrence probability of other structural damages of joint.Along with the development of arthroscopic techniques, adopt and transplant the Main Means that the tendon Reconstruct anterior cruciate ligament by arthroscopy has become the front intersection fork for the treatment of ligament injury.Yet along with Cruciate ligament reconstruction patient's continuous increase, postoperative appearance transplants that tendon is loosening, tunnel enlarges, transplant the ligament case that need to overhaul such as rupture again, also constantly increase, this is before knee joint, to intersect the new challenge of fork ligament reconstruction.Studies show that, affect the many factors of Healing in Anterior Cruciate Ligament Reconstruction effect, comprise the selection of transplanting tendon, the mode of reconstruction and fixing mode etc.What wherein transplant tendon is fixedly most important link in Healing in Anterior Cruciate Ligament Reconstruction, is also the weakest link.The good fixing requirement that can meet in the recent period postoperative early stage motion, muscular training and heavy burden, the fusion that helps to transplant tendon and bone long term.
The scholars of countries in the world sports medical science are devoted to how to improve the correlational study of Healing in Anterior Cruciate Ligament Reconstruction effect always.Current new technique etc. emerges in an endless stream, and new fixation device also constantly occurs.Although the appearance of new technique, new material provides various selection for the clinician, enriched the method for the treatment of, improved to a certain extent the therapeutic effect that ligament is rebuild, still be difficult to meet clinical needs.
The utility model content
This utility model aims to provide a kind of osseous tunnel holder of Healing in Anterior Cruciate Ligament Reconstruction, can reduce lengthwise movement (bungee jumping effect) and the transverse movement (rain brush effect) of transplanting between the tendon-bone road, can also avoid fixation device to transplanting the cutting of tendon, to local bone destruction less, reduce as much as possible the loss of bone amount, fixed, transplanting tendon Yu Gu road contact area is large, further promotes the tendon knitting; Simultaneously, by the pressurization to holder, can adjust the tension force of graft ligament.
For achieving the above object, this utility model is realized by the following technical solutions:
The osseous tunnel holder of the disclosed Healing in Anterior Cruciate Ligament Reconstruction of this utility model, comprise fixation kit and the interior fixation kit of ligament tibia end in the femur end; In described femur end, fixation kit comprises the first hollow screw, the first inner bolt, the first guide spiro rod, the tail end diameter of described the first hollow screw is greater than point diameter, its profile is an incomplete vertebral body and connects a cylinder, the external screw thread of the female thread of the first hollow screw and the first inner bolt one end is suitable, the other end of described the first inner bolt is provided with the loop of transplanting ligament be used to hanging, and the external diameter of described the first guide spiro rod is less than the internal diameter of the first inner bolt; In described ligament tibia end, fixation kit comprises the second hollow screw, the second inner bolt, the second guide spiro rod, pedestal nut, the female thread of the external screw thread of described the second hollow screw and pedestal nut is suitable, the external screw thread of the female thread of the second hollow screw and the second inner bolt one end is suitable, the other end of described the second inner bolt is provided with the loop of transplanting ligament be used to hanging, and the external diameter of described the second guide spiro rod is less than the internal diameter of the second inner bolt.
Further, be provided with the first hole clipping on described the first inner bolt inwall, described the first guide spiro rod outer wall is provided with first Spring Card suitable with the first hole clipping; On described the second inner bolt inwall, be provided with the second hole clipping, the second guide spiro rod outer wall is provided with second Spring Card suitable with the second hole clipping.
Preferably, the tail end of the large tail end of described the first hollow screw, the second hollow screw is interior hexagon.
Further, described the first guide spiro rod afterbody is provided with the first switch of controlling the first Spring Card folding; Described the second guide spiro rod afterbody is provided with the second switch of controlling the second Spring Card folding.
Further, described pedestal nut is provided with the outside wing.
This utility model can not only reduce lengthwise movement (bungee jumping effect) and the transverse movement (rain brush effect) of transplanting between the tendon-bone road, can also avoid fixation device to transplanting the cutting of tendon, to local bone destruction less, reduce as much as possible the loss of bone amount, fixed, transplant tendon Yu Gu road contact area large, further promote the tendon knitting.According to the corollary apparatus of the different model arranged, fixing not good for the sclerotin quality, revision procedure and the tendon that can also be applicable to revision procedure mate bad patient with tunnel.In addition, this internal fixation apparatus is high to the utilization rate of tendon transplantation tendon, can save greatly the transplanting tendon.
The accompanying drawing explanation
Fig. 1 is this utility model structural representation;
In figure: 1-the first hollow screw, 2-the first inner bolt, 3-the first guide spiro rod, 4-the second hollow screw, 5-the second inner bolt, 6-the second guide spiro rod, 7-pedestal nut, 8-transplant tendon.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is further elaborated.
As shown in Figure 1, the osseous tunnel holder of the disclosed Healing in Anterior Cruciate Ligament Reconstruction of this utility model, comprise fixation kit and the interior fixation kit of ligament tibia end in the femur end; In the femur end, fixation kit comprises the first hollow screw 1, the first inner bolt 2, the first guide spiro rod 3, the tail end diameter of the first hollow screw 1 is greater than point diameter, its profile is an incomplete vertebral body and connects a cylinder, the external screw thread of the female thread of the first hollow screw 1 and the first inner bolt 2 one ends is suitable, the other end of the first inner bolt 2 is provided with the loop of transplanting ligament be used to hanging, and the external diameter of the first guide spiro rod 3 is less than the internal diameter of the first inner bolt 2; In ligament tibia end, fixation kit comprises the second hollow screw 4, the second inner bolt 5, the second guide spiro rod 6, pedestal nut 7, the female thread of the external screw thread of the second hollow screw 4 and pedestal nut 7 is suitable, the external screw thread of the female thread of the second hollow screw 4 and the second inner bolt 5 one ends is suitable, the other end of the second inner bolt 5 is provided with the loop of transplanting ligament be used to hanging, and the external diameter of described the second guide spiro rod 6 is less than the internal diameter of the second inner bolt 5.
Further, be provided with the first hole clipping on the first inner bolt 2 inwalls, the first guide spiro rod 3 outer walls are provided with first Spring Card suitable with the first hole clipping; On the second inner bolt 5 inwalls, be provided with the second hole clipping, the second guide spiro rod 6 outer walls are provided with second Spring Card suitable with the second hole clipping.An end of transplanting ligament 8 is suspended on the loop of the first inner bolt 2, by the first guide spiro rod 3.
Preferably, the tail end of the large tail end of the first hollow screw 1, the second hollow screw 4 is interior hexagon; The first hollow screw 1, the second hollow screw 4 are hollow, and tail end is interior hexagon, so that use, separate cutter and twist solid.
Further, the first guide spiro rod 3 afterbodys are provided with the first switch of controlling the first Spring Card folding; The second guide spiro rod 6 afterbodys are provided with the second switch of controlling the second Spring Card folding.
Further, pedestal nut 7 is provided with the outside wing, facilitates the placement of pedestal nut 7 and picks up.
The action principle of the second hollow screw 4 and the first hollow screw 1, the second inner bolt 5 and the first inner bolt 2, the second guide spiro rods 6 and the first guide spiro rod 3 and function and mutual relation are identical, only different at aspects such as length, diameters.For different patient's measurement results, use the product of different model.For osteoporosis and overhaul the patient, the diameter of pedestal nut 7 will be enlarged suitably.
Usage of the present utility model is as follows: at the femur end, after the first hollow screw 1 with transplanting tendon 8 is introduced articular cavity, pass through Arthroscopy, from femur tunnel ecto-entad, insert after the first guide spiro rod 3 makes the first hole clipping padlock on the first Spring Card and the first inner bolt 2, controlling the first guide spiro rod 3 moves the first inner bolt 2 with transplanting tendon 8 is drawn from the femur tunnel to lateral side of femur cortex direction, then with the solution cutter of hollow, under the guiding of the first guide spiro rod 3, turning the first hollow screw 1 makes it to twist solid with the first inner bolt 2, fix simultaneously the first guide spiro rod 3 in case leukorrhagia stopping has first inner bolt 2 rotations of transplanting tendon 8, after confirming that the first hollow screw 1 and the first inner bolt 2 are tightened and fixed, by the first switch trip spring card of screw rod the first guide spiro rod 3 tail ends, then take out the first guide spiro rod 3, fixing means and femur end at ligament tibia end are similar, and the difference of existence is: the second hollow screw 4 is fixed in pedestal nut 7, and pedestal nut 7 is fixed on ligament tibia end.When under Arthroscopy, feeling that graft is too tight or too loose, can also carry out suitable loosening or pressurize by the relative position between the second inner bolt 5 and the second hollow screw 4 in the adjusting ligament tibia end, to adjust to greatest extent the tension force of graft.
Certainly; this utility model also can have other various embodiments; in the situation that do not deviate from this utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to this utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of this utility model.
Claims (5)
1. the osseous tunnel holder of a Healing in Anterior Cruciate Ligament Reconstruction, is characterized in that: comprise fixation kit and the interior fixation kit of ligament tibia end in the femur end; In described femur end, fixation kit comprises the first hollow screw (1), the first inner bolt (2), the first guide spiro rod (3), the tail end diameter of described the first hollow screw (1) is greater than point diameter, its profile is an incomplete vertebral body and connects a cylinder, the external screw thread of the female thread of the first hollow screw (1) and the first inner bolt (2) one ends is suitable, the other end of described the first inner bolt (2) is provided with the loop of transplanting ligament be used to hanging, and the external diameter of described the first guide spiro rod (3) is less than the internal diameter of the first inner bolt (2); In described ligament tibia end, fixation kit comprises the second hollow screw (4), the second inner bolt (5), the second guide spiro rod (6), pedestal nut (7), the female thread of the external screw thread of described the second hollow screw (4) and pedestal nut (7) is suitable, the external screw thread of the female thread of the second hollow screw (4) and the second inner bolt (5) one ends is suitable, the other end of described the second inner bolt (5) is provided with the loop of transplanting ligament be used to hanging, and the external diameter of described the second guide spiro rod (6) is less than the internal diameter of the second inner bolt (5).
2. the osseous tunnel holder of Healing in Anterior Cruciate Ligament Reconstruction according to claim 1, it is characterized in that: on described the first inner bolt (2) inwall, be provided with the first hole clipping, the first guide spiro rod (3) outer wall is provided with first Spring Card suitable with the first hole clipping; On described the second inner bolt (5) inwall, be provided with the second hole clipping, the second guide spiro rod (6) outer wall is provided with second Spring Card suitable with the second hole clipping.
3. the osseous tunnel holder of Healing in Anterior Cruciate Ligament Reconstruction according to claim 1, it is characterized in that: the tail end of described the first hollow screw (1), the second hollow screw (4) is interior hexagon.
4. the osseous tunnel holder of Healing in Anterior Cruciate Ligament Reconstruction according to claim 2 is characterized in that: described the first guide spiro rod (3) afterbody is provided with the first switch of controlling the first Spring Card folding; Described the second guide spiro rod (6) afterbody is provided with the second switch of controlling the second Spring Card folding.
5. the osseous tunnel holder of Healing in Anterior Cruciate Ligament Reconstruction according to claim 1, it is characterized in that: described pedestal nut (7) is provided with the outside wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203839211U CN203303135U (en) | 2013-06-28 | 2013-06-28 | Bone tunnel fixing device for rebuilding anterior cruciate ligament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203839211U CN203303135U (en) | 2013-06-28 | 2013-06-28 | Bone tunnel fixing device for rebuilding anterior cruciate ligament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203303135U true CN203303135U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203839211U Withdrawn - After Issue CN203303135U (en) | 2013-06-28 | 2013-06-28 | Bone tunnel fixing device for rebuilding anterior cruciate ligament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203303135U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315798A (en) * | 2013-06-28 | 2013-09-25 | 四川大学华西医院 | Bone tunnel fixator for anterior cruciate ligament reconstruction |
| CN103690229A (en) * | 2013-12-30 | 2014-04-02 | 吕宏升 | Compression fixing nail for single-tunnel double-bundle reconstruction of cruciate ligaments |
| CN108523973A (en) * | 2018-04-17 | 2018-09-14 | 四川大学华西医院 | A kind of adjustable osseous tunnel graft fixation device |
| CN113349909A (en) * | 2021-05-07 | 2021-09-07 | 四川大学华西医院 | Disconnect-type screw |
-
2013
- 2013-06-28 CN CN2013203839211U patent/CN203303135U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315798A (en) * | 2013-06-28 | 2013-09-25 | 四川大学华西医院 | Bone tunnel fixator for anterior cruciate ligament reconstruction |
| CN103315798B (en) * | 2013-06-28 | 2015-02-18 | 四川大学华西医院 | Bone tunnel fixator for anterior cruciate ligament reconstruction |
| CN103690229A (en) * | 2013-12-30 | 2014-04-02 | 吕宏升 | Compression fixing nail for single-tunnel double-bundle reconstruction of cruciate ligaments |
| CN108523973A (en) * | 2018-04-17 | 2018-09-14 | 四川大学华西医院 | A kind of adjustable osseous tunnel graft fixation device |
| CN113349909A (en) * | 2021-05-07 | 2021-09-07 | 四川大学华西医院 | Disconnect-type screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150218 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150218 |
|
| RGAV | Abandon patent right to avoid regrant |