CN209826835U - Knee joint collateral ligament insertion fixer - Google Patents
Knee joint collateral ligament insertion fixer Download PDFInfo
- Publication number
- CN209826835U CN209826835U CN201820255993.0U CN201820255993U CN209826835U CN 209826835 U CN209826835 U CN 209826835U CN 201820255993 U CN201820255993 U CN 201820255993U CN 209826835 U CN209826835 U CN 209826835U
- Authority
- CN
- China
- Prior art keywords
- collateral ligament
- knee
- fixed plate
- ligament insertion
- fixing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000004439 collateral ligament Anatomy 0.000 title claims abstract description 35
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 13
- 238000003780 insertion Methods 0.000 title claims description 30
- 230000037431 insertion Effects 0.000 title claims description 30
- 210000003127 knee Anatomy 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 abstract description 20
- 210000003041 ligament Anatomy 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 210000000988 bone and bone Anatomy 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 210000001694 thigh bone Anatomy 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a knee joint collateral ligament dead center fixer, including fixed plate and location nail, the fixed plate is rectangular platelike structure, the center of fixed plate is provided with and runs through two sides of fixed plate are used for wearing to establish the mounting hole of screw, the location nail is four, and four location nails set up respectively four edges department with the side of fixed plate. The utility model is used for the fixed of the stop of collateral ligament to the outside in the operation of shifting up of collateral ligament stop outside the knee, its fixed effectual has guaranteed the effect that operation effect and patient recovered.
Description
Technical Field
The utility model relates to the technical field of medical surgical instruments, in particular to a knee joint collateral ligament insertion fixer.
Background
The insertion and upward movement of the lateral collateral ligament of knee is suitable for the anterior-lateral rotational instability of knee or chronic laxity of the lateral ligament of knee. In the existing knee lateral accessory ligament insertion point upward moving operation, in the operation process, an insertion point of the lateral accessory ligament is fixed in a shallow bone groove cut on a femoral condyle by independently adopting a screw, so that the lateral accessory ligament is positioned on the femoral condyle.
The applicant has found that the prior art has at least the following technical problems:
because the screw is independently adopted for positioning, the insertion points of the lateral accessory ligament are only compressed by the head of the screw, the compression area is small, and the insertion points of the lateral accessory ligament cannot be uniformly stressed, so that the fixation effect is not ideal, and the operation effect and the recovery of a patient are influenced.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the above-mentioned prior art, the utility model provides a knee joint collateral ligament insertion fixer, it is good to the fixed effect of the insertion of collateral ligament of outside in the art of knee collateral ligament insertion shifts up, has guaranteed the effect that operation effect and patient recovered.
The technical scheme of the utility model is that: the utility model provides a knee joint collateral ligament dead center fixer, includes fixed plate and location nail, the fixed plate is rectangular platelike structure, the center of fixed plate is provided with and runs through two sides of fixed plate are used for wearing to establish the mounting hole of screw, the location nail is four, and four location nails set up respectively four edges of the same side of fixed plate are located.
Preferably, the method comprises the following steps: the diameter of one end of the mounting hole, which is positioned on the side surface of the fixing plate provided with the positioning nail, is smaller than that of the other end of the fixing plate.
Preferably, the method comprises the following steps: the side wall of the mounting hole is a spherical arc wall.
Preferably, the method comprises the following steps: the tops of the four positioning nails incline towards the direction of the mounting hole.
Preferably, the method comprises the following steps: the axes of the four positioning nails form included angles of 2 degrees with the axes of the mounting holes.
Preferably, the method comprises the following steps: the positioning nail is conical.
Preferably, the method comprises the following steps: the part of the positioning nail close to the fixing plate is provided with a plurality of annular grooves distributed along the axial direction.
Preferably, the method comprises the following steps: and four corners of the positioning plate are all chamfered into round corners.
Preferably, the method comprises the following steps: the fixing plate is also provided with a plurality of cylindrical holes penetrating through two side faces of the fixing plate.
Preferably, the method comprises the following steps: the fixing plate and the positioning nail are integrally formed.
The utility model has the advantages that: the utility model discloses when using, after confirming that the ligament shifts up the degree back chisel remove shift up the terminal position the bone cortex form shallow bone groove both sides position symmetry chisel out with the utility model discloses a four slotted holes that the position of four location nails corresponds are fixing the dead point of outside collateral branch ligament at the shallow bone inslot back, will the utility model discloses a four location nails are four slotted holes of alignment one by one to downward application of force makes the fixed plate compress tightly outside collateral branch ligament, screws on the thighbone condyle through the screw that passes the mounting hole at last, can form the fixed of the dead point of outside collateral branch ligament. The dead point full contact of fixed plate and outside collateral ligament compresses tightly the area big to have even packing force, have excellent effect that compresses tightly, thereby guaranteed the effect that operation effect and patient recovered.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the invention;
fig. 3 is a sectional view taken along the line a-a in fig. 2.
In the figure:
1. a fixing plate; 11. mounting holes; 12. a cylindrical bore;
2. positioning nails; 21. an annular groove.
Detailed Description
In the existing knee lateral accessory ligament insertion point upward moving operation, in the operation process, an insertion point of the lateral accessory ligament is fixed in a shallow bone groove cut on a femoral condyle by independently adopting a screw, so that the lateral accessory ligament is positioned on the femoral condyle. Because the screw is independently adopted for positioning, the insertion points of the lateral accessory ligament are only compressed by the head of the screw, the compression area is small, and the insertion points of the lateral accessory ligament cannot be uniformly stressed, so that the fixation effect is not ideal, and the operation effect and the recovery of a patient are influenced.
To the technical problem that exists among the above-mentioned prior art, the embodiment of the utility model provides a knee joint collateral ligament dead point fixer, including fixed plate and location nail, the fixed plate is rectangular platelike structure, the center of fixed plate is provided with and runs through two sides of fixed plate are used for wearing to establish the mounting hole of screw, the location nail is four, and four location nails set up respectively four edges department with the side of fixed plate.
The embodiment of the utility model provides a knee joint collateral ligament insertion point fixer is arranged in the knee outside collateral ligament insertion point shifts up fixed to the insertion point of collateral ligament in the art, and it is fixed effectual, can guarantee operation effect and patient's recovery effect effectively.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, an embodiment of the present invention provides a knee joint collateral ligament insertion fixator, which includes a fixing plate 1 and a positioning nail 2.
As shown in fig. 2, the fixing plate 1 has a rectangular plate-like structure. For convenience of subsequent description, both side surfaces of the fixing plate 1 are defined as a front surface and a back surface, respectively.
In the center of the fixing plate 1, there are mounting holes 11 penetrating the front and back of the fixing plate 1, and the mounting holes 11 are used for passing screws so as to form the fixation of the fixing plate 1 on the femoral condyle of the patient.
As an alternative embodiment, the diameter of the mounting hole 11 at one end of the back surface of the fixing plate 1 is smaller than that at the other end. This is so that when a screw is passed through the mounting hole 11, the mounting hole 11 can receive the head of the screw, so that the head of the screw is sunk into the mounting hole 11, reducing the overall thickness of the head of the screw in combination with the fixing plate 1.
As an alternative embodiment, the side wall of the mounting hole 11 is a spherical arc wall. The screw also uses the specification that the head matches with the side wall shape of the mounting hole 11, and the spherical arc wall can increase the contact area of the screw head and the side wall of the mounting hole 11 without increasing the depth of the mounting hole 11, thereby enhancing the fixing effect.
In an alternative embodiment, four corners of the positioning plate are rounded. So as to avoid the injury of the edge-shaped corner to the muscle or soft tissue of the human body.
As an optional embodiment, a plurality of cylindrical holes 12 penetrating through two side surfaces of the fixing plate 1 are further provided on the fixing plate 1. The cylindrical holes 12 may be used for additional positioning during the positioning of the fixation plate 1. The diameter of the cylindrical hole 12 is smaller than the diameter of the root of the positioning nail 2. To avoid affecting the effective compression area of the fixation plate 1.
As shown in fig. 2, the number of the positioning nails 2 is four, and the four positioning nails 2 are respectively arranged at four corners of the back surface of the fixing plate 1.
As an alternative embodiment, the positioning peg 2 is conical. As shown in fig. 1 and 3, the part of the positioning pin 2 close to the fixing plate 1 is provided with a plurality of annular grooves 21 distributed along the axial direction. In the process of recovering the patient, the bone grows and is healed and is mutually embedded with the annular groove 21, thereby playing a role in reinforcing the fixing function of the fixing plate 1 and effectively ensuring the fixation of the dead point of the knee joint lateral collateral ligament.
In an alternative embodiment, as shown in fig. 3, the apexes of the four positioning pins 2 are inclined toward the mounting hole 11. Therefore, an included angle is formed between the axis of the positioning nail 2 and the axis of the mounting hole 11, and the fixing effect on the knee joint collateral ligament can be better realized.
Specifically, the axes of the four positioning nails 2 and the axis of the mounting hole 11 form included angles of 2 degrees. Thus, the positioning nail 2 can be ensured to smoothly enter the bone, and a better fixing effect can be achieved.
As an alternative embodiment, the fixing plate 1 is integrally formed with the positioning nail 2 to ensure the overall structural strength. The fixing plate 1 and the positioning nails 2 are both made of titanium alloy, and HA coatings are sprayed on the surfaces of the fixing plate and the positioning nails.
It should be noted that, in the case of conflict, the features of the embodiments of the present invention may be combined with each other.
The embodiment of the utility model provides a knee joint collateral ligament dead center fixer during the use, chisel out four slotted holes that correspond with four staple 2's position in the both sides position symmetry in the shallow bone groove that the cortex of bone matter that shifts up the terminal point position formed after confirming the ligament shifts up the degree, and fix the dead center of lateral collateral ligament at the shallow bone inslot back, will the utility model discloses a four staple 2 alignment four slotted holes one by one to downward application of force makes fixed plate 1 compress tightly the lateral collateral ligament, screws on the thighbone condyle through the screw that passes mounting hole 11 at last, can form the fixed of the dead center of lateral collateral ligament.
The fixing plate 1 is in full contact with the insertion point of the lateral collateral ligament, the compression area is large, uniform compression force is achieved, an excellent compression effect is achieved, and therefore the operation effect and the recovery effect of a patient are guaranteed.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. A knee joint collateral ligament insertion fixer which characterized in that: including fixed plate (1) and location nail (2), fixed plate (1) is rectangular platelike structure, the center of fixed plate (1) is provided with runs through two sides of fixed plate (1) are used for wearing to establish mounting hole (11) of screw, location nail (2) are four, and four location nails (2) set up respectively four edges department of the same side of fixed plate (1).
2. The knee collateral ligament insertion fixation device of claim 1, wherein: the diameter of one end, located on the side face of the fixing plate (1) where the positioning nail (2) is arranged, of the mounting hole (11) is smaller than that of the other end of the fixing plate.
3. The knee collateral ligament insertion fixation device of claim 2, wherein: the side wall of the mounting hole (11) is a spherical arc wall.
4. The knee collateral ligament insertion fixation device of claim 1, wherein: the tops of the four positioning nails (2) incline towards the direction of the mounting hole (11).
5. The knee collateral ligament insertion point fixator of claim 4, wherein: the axes of the four positioning nails (2) form included angles of 2 degrees with the axes of the mounting holes (11).
6. The knee collateral ligament insertion fixation device of claim 1, wherein: the positioning nail (2) is conical.
7. The knee collateral ligament insertion point fixator of claim 6, wherein: the part of the positioning nail (2) close to the fixing plate (1) is provided with a plurality of annular grooves (21) distributed along the axial direction.
8. The knee collateral ligament insertion fixation device of claim 1, wherein: and four corners of the positioning plate are all chamfered into round corners.
9. The knee collateral ligament insertion fixation device of claim 1, wherein: the fixing plate (1) is also provided with a plurality of cylindrical holes (12) which penetrate through two side faces of the fixing plate (1).
10. The knee collateral ligament insertion fixation device of any one of claims 1 to 9, wherein: the fixing plate (1) and the positioning nail (2) are integrally formed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255993.0U CN209826835U (en) | 2018-02-13 | 2018-02-13 | Knee joint collateral ligament insertion fixer |
| PCT/CN2018/120514 WO2019157853A1 (en) | 2018-02-13 | 2018-12-12 | Ligament fixator for knee joint surgery |
| US16/607,985 US20210106417A1 (en) | 2018-02-13 | 2018-12-12 | Ligament Fixator in Knee Surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255993.0U CN209826835U (en) | 2018-02-13 | 2018-02-13 | Knee joint collateral ligament insertion fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209826835U true CN209826835U (en) | 2019-12-24 |
Family
ID=68888873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820255993.0U Expired - Fee Related CN209826835U (en) | 2018-02-13 | 2018-02-13 | Knee joint collateral ligament insertion fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209826835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714173A (en) * | 2020-06-29 | 2020-09-29 | 中国人民解放军总医院 | Novel ligament insertion staple around knee joint |
-
2018
- 2018-02-13 CN CN201820255993.0U patent/CN209826835U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111714173A (en) * | 2020-06-29 | 2020-09-29 | 中国人民解放军总医院 | Novel ligament insertion staple around knee joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |