CN212939911U - Shin bone ACL rebuilds locator based on 3D prints - Google Patents
Shin bone ACL rebuilds locator based on 3D prints Download PDFInfo
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- CN212939911U CN212939911U CN202020225732.1U CN202020225732U CN212939911U CN 212939911 U CN212939911 U CN 212939911U CN 202020225732 U CN202020225732 U CN 202020225732U CN 212939911 U CN212939911 U CN 212939911U
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Abstract
The utility model discloses a shin bone ACL rebuilds locator based on 3D prints, it includes locating component and pilot pin, the locating component adopts 3D to print according to three-dimensional CT before the patient's art and makes for stabilize whole device and then accurate positioning shin bone way through stabilizing post laminating bone surface, the pilot pin is inserted and is used for squeezing into shin bone way drilling after locating in the locating component. The utility model discloses a locator is rebuild to shin bone ACL based on 3D prints, including locating component and pilot pin, locating component wherein adopts 3D to print according to the three-dimensional CT before the patient's art and makes, laminates patient bone surface better to carry out individualized bone way drilling, simultaneously, locating component is compared in traditional locator and is also more stable, thereby carries out shin bone way location for the patient more stably, accurately.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to locator is rebuild to shin bone ACL based on 3D prints.
Background
Anterior Cruciate Ligament (ACL) injury is a common sports injury, which can cause knee joint instability, often accompanied by meniscus and articular cartilage injury, and in late stage can cause traumatic arthritis, accelerate joint degeneration and affect the quality of life of patients. Arthroscopic ACL reconstruction is the best choice for restoring knee joint function.
When the ACL reconstruction operation is carried out, the anatomical structure and the function of the knee joint can be restored to the maximum extent only by reconstructing the actual anatomical position close to the ACL. However, the existing traditional positioner generally adopts a V shape, the structure is simple, but the accuracy is poor, the fixing pipeline of the kirschner wire of the traditional positioner is short and unstable, and the size of the traditional positioner is consistent, so that the traditional positioner cannot well adapt to the personal shinbone requirement of each patient.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a locator is rebuild to shin bone ACL based on 3D prints adopts 3D to print the locating component who makes through three-dimensional CT before the patient's art, can laminate patient's bone surface better, carries out individualized bone way drilling, compares in the past traditional locator more stable simultaneously, and the shin bone way location is more accurate.
The utility model adopts the technical proposal that:
the utility model provides a locator is rebuild to shin bone ACL based on 3D prints, its includes locating component and pilot pin, locating component adopts 3D to print according to three-dimensional CT before the patient for stabilize whole device and then accurate positioning shin bone way through stabilizing post laminating bone surface, the pilot pin is inserted and is used for fixing a position the back and squeeze into shin bone way drilling in locating component.
Preferably, the locating component comprises a main rod, a connecting rod, a three-head stabilizing unit, a locating rod and a locating pipe, wherein the connecting rod, the three-head stabilizing unit and the locating rod are sequentially fixed outside the same cross section of the main rod, the locating pipe is fixed at the bottom of the connecting rod, a locating needle is inserted into the locating pipe, and the tip of the locating needle is right opposite to the tail end of the locating rod.
Preferably, the three-head stabilizing unit comprises a supporting column and three column heads, wherein three column heads are arranged at the tail end of the supporting column, and the three column heads are three columns with different inclination angles and fixed at the tail end of the supporting column.
Preferably, the three angled cylinders of the three-stigma are made according to a three-dimensional CT prior to each patient for conforming facet stabilization of the entire device.
Preferably, the three-head stabilizing unit further comprises a reinforcing rod, wherein the reinforcing rod is arranged on one side of the tail end of the supporting column and used for being connected with the positioning pipe, and therefore the function of reinforcing the three-head stabilizing unit is achieved.
Preferably, the connecting rod, the triple-headed stabilizing unit and the positioning pipe form a triangle.
Preferably, the positioning rod is curved inwardly and terminates in an inner hook tip to facilitate positioning on the tibia.
Preferably, the length of the positioning rod is greater than that of the three-head stabilizing unit.
Preferably, the length of the positioning needle is greater than the length of the positioning tube.
Preferably, the locator pin is a k-wire.
Compared with the prior art, the utility model discloses a locator is rebuild to shin bone ACL based on 3D prints, including locating component and pilot pin, locating component wherein adopts 3D to print according to the three-dimensional CT before the patient art and makes, laminates patient bone surface better to carry out individualized bone way drilling, simultaneously, locating component compares in traditional locator also more stable, thereby carries out shin bone way location for the patient more stably, accurately.
Drawings
Fig. 1 is a perspective view of a tibial ACL reconstruction locator based on 3D printing provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a tibial ACL reconstruction locator based on 3D printing according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a three-head stabilizing unit of a tibia ACL reconstruction locator based on 3D printing according to an embodiment of the present invention;
fig. 4 is a working state diagram of the tibial ACL reconstruction locator based on 3D printing provided by the embodiment of the present invention.
Description of the reference numerals
1-positioning component, 11-main rod, 12-connecting rod, 13-three-head stabilizing unit, 131-supporting column, 132-three-column head, 133-reinforcing rod, 14-positioning rod, 15-positioning tube, 2-positioning needle and 3-tibia main body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides a locator is rebuild to shin bone ACL based on 3D prints, as shown in fig. 1, it includes locating component 1 and pilot pin 2, locating component 1 adopts 3D to print according to three-dimensional CT before the patient's art and makes for stabilize whole device and then accurate positioning shin bone way through stabilizing post laminating bone surface, pilot pin 2 inserts and is used for throwing into shin bone way drilling after fixing a position in locating component 1.
Like this, adopt above-mentioned structure, the utility model discloses a locator is rebuild to shin bone ACL based on 3D prints, it includes locating component 1 and pilot pin 2, locating component 1 adopts 3D to print according to three-dimensional CT before the patient's art and makes for thereby laminating bone surface stabilizes whole device and makes intraoperative accurate positioning shin bone way, pilot pin 2 inserts and locates and squeeze into shin bone way drilling after being used for fixing a position in locating component 1, and simultaneously, locating component compares also more stably in traditional locator to more stably, accurately carry out shin bone way location for the patient.
As shown in fig. 2, the positioning assembly 1 includes a main rod 11, a connecting rod 12, a three-head stabilizing unit 13, a positioning rod 14 and a positioning tube 15, the connecting rod 12, the three-head stabilizing unit 13 and the positioning rod 14 are sequentially fixed outside the same cross section of the main rod 11, the positioning tube 15 is fixed at the bottom of the connecting rod 12, a positioning pin 2 is inserted into the positioning tube 15, and the tip of the positioning pin 2 is opposite to the tail end of the positioning rod 14.
Like this, can couple together connecting rod 12, three stabilizing element 13 and locating lever 14 through mobile jib 11, whole plays firm, the effect of location in ACL reconstruction operation, and registration arm 15 is used for making pilot pin 2 alternate between them, plays the effect of fixed pilot pin 2, and the pointed end of pilot pin 2 is just to locating lever 14 in addition, also can utilize the pointed end of locating lever 14 to predict the position that pilot pin 2 wore out the shin bone.
The three-head stabilizing unit 13 comprises a supporting column 131 and three column heads 132, wherein three column heads 132 are arranged at the tail end of the supporting column 131, and the three column heads 132 are three columns with different inclination angles and fixed at the tail end of the supporting column 131.
In this way, the three-head stabilizing unit 13 which is manufactured according to the preoperative three-dimensional CT of the patient and is suitable for individuation of the patient is adopted by the 3D printing technology, the individualized supporting column 131 and the three-column head 132 which are more suitable for the tibia of the patient are provided, and the lengths and the inclination angles of the supporting column 131 and the three-column head 132 can be more matched with the tibia of the patient.
The three slanted cylinders of the three-column head 132 are made to conform to the facet to stabilize the entire device according to the three-dimensional CT prior to each patient.
Like this, three inclined cylinder of three column cap 132 are made according to the three-dimensional CT before every patient's art, and the laminating is more with patient's bone surface to make in ACL reconstruction operation, whole locator is more stable, accurate location.
The three-headed stabilizing unit 13 further includes a reinforcing rod 133, and the reinforcing rod 133 is provided at a distal end side of the support column 131 for connecting the positioning pipe 15, thereby functioning to reinforce the three-headed stabilizing unit 13.
Thus, the reinforcing rod 133 connects the three-headed stabilizer unit 13 and the positioning tube 15, so that the doctor drives the positioning needle 2 into the tibia of the patient through the positioning tube 15 after the three-headed stabilizer unit 13 is fixed on the tibia of the patient.
The connecting rod 12, the three-head stabilizing unit 13 and the positioning tube 15 form a triangle.
Like this, can make connecting rod 12, three stable unit 13 and registration arm 15 whole more stable, fix a position the shin bone way more accurately.
The positioning rod 14 is curved inwardly and terminates in an inner hook tip to facilitate positioning on the tibia.
Thus, one end of the locator can be supported on the tibia in advance by using the tip of the end of the locating rod 14, and then the main rod 11 is rotated to adjust the optimum drilling angle.
The length of the positioning rod 14 is greater than that of the three-head stabilizing unit 13.
Thus, the tail end of the positioning rod 14 can be selected on the tibia of the patient in advance, and the three-head stabilizing unit 13 is attached to the bone surface of the tibia of the patient.
The length of pilot pin 2 is greater than the length of registration arm 15, pilot pin 2 is the kirschner wire.
Therefore, after the locator is located, the locating needle 2 penetrates out of the locating tube 15 and is driven into the tibia of the patient to drill holes. The kirschner wire is a positioning needle commonly used in ACL surgery.
The utility model discloses a locator is rebuild to shin bone ACL based on 3D prints, at first adopt 3D printing technique to make according to three-dimensional CT before the patient's art, can satisfy patient's individualized customization demand more, then through locating lever 14 preselection position on patient's shin bone, through connecting rod 12, the structure laminating patient bone face accurate positioning shin bone way that three stabilizing element 13 and registration arm 15 are constituteed, finally pass the locating hole with the pilot pin and squeeze into and bore in the patient's shin bone, it experiences to provide the optimum shin bone ACL to rebuild the location for the patient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a locator is rebuild to shin bone ACL based on 3D prints, its characterized in that, it includes locating component (1) and pilot pin (2), locating component (1) adopts 3D to print according to three-dimensional CT before the patient for through stabilizing post laminating bone surface and stablizing whole device and then pinpoint shin bone way, pilot pin (2) are inserted and are used for fixing a position the back and squeeze into shin bone way drilling in locating component (1).
2. The 3D printing-based tibial ACL reconstruction locator according to claim 1, wherein the locating assembly (1) comprises a main rod (11), a connecting rod (12), a three-head stabilizing unit (13), a locating rod (14) and a locating tube (15), the connecting rod (12), the three-head stabilizing unit (13) and the locating rod (14) are sequentially fixed outside the same cross section of the main rod (11), the locating tube (15) is fixed at the bottom of the connecting rod (12), a locating needle (2) is inserted into the locating tube (15), and the tip of the locating needle (2) is opposite to the tail end of the locating rod (14).
3. The 3D printing-based tibial ACL reconstruction locator of claim 2, wherein the three-head stabilization unit (13) comprises a support column (131) and a three-column head (132), the end of the support column (131) is provided with three columns heads (132), and the three columns heads (132) are three columns with different inclination angles fixed at the end of the support column (131).
4. The 3D printing-based tibial ACL reconstruction locator of claim 3, characterized in that the three oblique cylinders of the three-post head (132) are made according to each patient preoperative three-dimensional CT for conforming the bone surface stabilizing whole device.
5. The 3D printing-based tibial ACL reconstruction locator of claim 4, wherein the three-headed stabilization unit (13) further comprises a reinforcement bar (133), the reinforcement bar (133) is disposed at the distal side of the support column (131) for connecting the positioning tube (15), thereby functioning to reinforce the three-headed stabilization unit (13).
6. The 3D printing based tibial ACL reconstruction locator of claim 5 wherein the connecting rod (12), tri-head stabilization unit (13) and locator tube (15) are triangularly shaped.
7. The 3D printing based tibial ACL reconstruction locator of claim 6, characterized in that said positioning rod (14) is inwardly curved and terminates in an inner hook tip to facilitate positioning on the tibia.
8. The 3D printing based tibial ACL reconstruction locator of claim 7, characterized in that the length of the positioning rod (14) is greater than the length of the three-headed stabilization unit (13).
9. The 3D printing based tibial ACL reconstruction locator of claim 8, characterized in that the length of the locator pin (2) is greater than the length of the locator tube (15).
10. The 3D printing based tibial ACL reconstruction locator according to any one of claims 1-9, characterized in that the locator pin (2) is a k-wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020225732.1U CN212939911U (en) | 2020-02-27 | 2020-02-27 | Shin bone ACL rebuilds locator based on 3D prints |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020225732.1U CN212939911U (en) | 2020-02-27 | 2020-02-27 | Shin bone ACL rebuilds locator based on 3D prints |
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| Publication Number | Publication Date |
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| CN212939911U true CN212939911U (en) | 2021-04-13 |
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| CN202020225732.1U Active CN212939911U (en) | 2020-02-27 | 2020-02-27 | Shin bone ACL rebuilds locator based on 3D prints |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116269627A (en) * | 2023-05-24 | 2023-06-23 | 杭州锐健马斯汀医疗器材有限公司 | Positioning device |
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2020
- 2020-02-27 CN CN202020225732.1U patent/CN212939911U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116269627A (en) * | 2023-05-24 | 2023-06-23 | 杭州锐健马斯汀医疗器材有限公司 | Positioning device |
| CN116269627B (en) * | 2023-05-24 | 2023-08-11 | 杭州锐健马斯汀医疗器材有限公司 | Positioning device |
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